Attachment 13 - BOD- DB Proposal - final 10-11-19 appendix A deleted.pdf

DRAFD

DRADRAFT

BASIS OF DESIGN

Design/Build Proposal Package

October 11, 2019

A/E DESIGN TO DEVELOP RFP FOR PARKING STRUCTURE

VA NORTHERN CALIFORNIA HEALTH CARE SYSTEM

150 Muir Road Martinez, California 94553

VA Contract No. 36C26119C0018

VA Project No. 612-165

Bancroft-AE Project No. 17-115

Page | 1 700 Nicholas Blvd. | Suite 300 | Elk Grove Village, Illinois 60007

Tel: 847-952-9362 | Fax: 847-952-9403 | www.bancroft-ae.com

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Basis of Design

VA Northern California Health Care System

Parking structure

VA Contract Number: 36C26119C0018

Bancroft Project Number: 17-115

Issued For: User and VA approval

By:

Bancroft Architects + Engineers

700 Nicholas Blvd, Suite 300

Elk Grove Village, Illinois 60007

847.952.9362 | www.bancroft-ae.com http://www.bancroft-ae.com/

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TABLE OF CONTENTS

1. Executive Summary

2. User Kickoff

3. Architectural Basis of Design

4. Engineering Basis of Design

5. Design Development

Appendix:

Appendix A- Meeting Minutes

Appendix B- TOC Specification

Appendix C- Design Reports

-Geo-Tech Report

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Executive Summary Introduction and Overview of the Project

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EXECUTIVE SUMMARY

This document is a Conceptual Design Summary that forms the current Basis of Design (BOD), a living document that will evolve through the duration of the project. This document to date has evolved through the following key elements of developmental discovery:

1. Administrative Project Kick-Off Meeting- December 20, 2019

2. Project Kick-Off Meeting- On Site- January 9, 2019

3. On-Site Steak Holder Meeting- April 24 th

, 2019

4. VA Team Meeting- Phone- May 16, 2019

5. VA 35% SD review Meeting 9-12-19

It is not the BOD’s function or intent to document every element of this entire process as it developed; rather it is to perform as an organized summary of the key developments of the project process. In addition to the BOD, total documentation of the design process consists of project minutes of meetings, numerous design studies and options presented for consideration.

Parking Garage Site

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Tel: 847-952-9362 | Fax: 847-952-9403 | www.bancroft-ae.com

In, 2018 Bancroft AE was contracted to provide Architectural/Engineering design services at the VA Northern California Health Care System in Martinez. Bancroft is to conceptualize, design and provide a 35% Design effort for RFP documents to demolish existing site area and construct a parking structure.

Bancroft Architects + Engineers (BAE) is to develop a design for a 350 car parking deck that can be constructed within an REDACTED Construction Cost Limit. Bancroft will provide professional design services to develop a Design/Build Proposal Package which will be disseminated to Design/Build Firms. Completion of the Design Development and Construction

Documents phases of design will be the responsibility of the Design/Build firm. The process to award the Design/Build contract will take around six months and the Design/Build firm will have two years to finish the Construction Documents and complete construction. Therefore, BAE’s

Opinion of Probable Construction Costs will be based on bidding the project mid-2020.

The purpose of this project is to replace 250 surface parking spaces on a parcel currently being leased from a private party. The goal is a 350 space, parking structure with structural provision for one level of future vertical expansion.

Description:

Major Elements consist of:

• Overall building dimensions- Initial concept approximately 252’ x 126’.

• Two to three Parking Levels to be provided to park approximately 350 cars.

• The interior parking deck levels are not completely enclosed; therefore, the interior drain inlets, including the roof level will be provided and connected to a storm drain system and piped to the two proposed bioretention facilities for storm water treatment in compliance with the Contra Costa County and State Water Boards requirements.

• Roof level parking deck will discharge Storm (ST) water to the North side of the building and will drain to a retention pond.

• The Structural design system is anticipated to be a cast in place concrete structure.

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• Architectural design, detailing and materials will be specified to match current campus finishes, textures and colors

• A Fire Protection sprinkler system will be not be required for an Open parking garage, but will be incorporated by code requirements for any enclosed areas. Vertical standpipe risers with Fire Department hose connections will be provided in areas as required.

• Because interior parking deck levels are not completely enclosed, Plumbing design will have interior drain inlets, including the roof level connected to a storm drain system and piped to the two proposed bioretention facilities for storm water treatment in compliance with the

Contra Costa County and State Water Boards requirements.

• Electrical design will incorporate new interior LED lighting, general use power outlets, exit and emergency lighting, fire alarm system extension, emergency communication system, security camera system and lightning protection system at roof level.

The demolition of temporary Buildings AB-5 , AB-6 and AB-7 and the adjacent outdoor mechanical area serving these buildings will be accomplished prior to construction of the new parking structure and are part of this SOW. These structures and mechanical area will be removed above the foundations/concrete pads such that utilities, foundations, footings and sidewalks will be left in place and removed as part of the SOW for the new parking structure. In addition, Building AB-5 and the smoking shelter are to be demolished in their entirety as part of this

SOW.

The existing entrance off Muir Road is to remain as is and a traffic study will not be required.

The loop road on the east side of the subject area is to remain as is the ramp to the upper tier on the south side of the subject area.

The Administrative meeting on July 19 th affirmed that this structure will not be subject to design requirements of the Physical Security Design Manual for Life Safety Protected or Mission

Critical structures. There is No PSDM Blast Requirement for this project.

There is currently a project in design on site to increase the water pressure such that BAE’s design can rely on the single domestic/fire loop providing 80 PSF minimum pressures.

Parking canopies on the existing surface parking area will need to be removed to accommodate the new parking structure. The solar panels on these canopies will not be reused. The existing parking canopies may be reused on the top floor of the new parking structure if the reconfiguration of these canopies is economically viable. New canopies with

Page | 11 new solar panels may be included in this SOW if it is possible to do this work within the

Construction Cost Limit.

Construction phasing is outside of this SOW and will be addressed by the Design/Build Firm.

BAE’s design work is exclusive to the parking structure. Existing entrances or other issues relative to existing campus structures and access to these structures are not part of this SOW.

During the conceptual phase of design, BAE is to offer a multiple structural system solutions for consideration. In presenting these solutions to the station, BAE’s evaluation of these systems is to focus on cost and schedule and to make a recommendation relative to the VA’s best construction value that meets the design guidelines. BAE will not be required to assess the capabilities of area SDVOSB contractors relative to the structural system being utilized.

It is anticipated that BAE will be required to incorporate 10% alternates in the design.

BAE is to indicate demolition of existing structures that will be outside our SOW. It will be

BAE’s responsibility to delineate the demolition or relocation of underground utilities parking structure footprint.

The following basic elements are included in this project: architectural, parking design, mechanical, electrical, plumbing, fire protection, structural, civil (topographical, utilities and tree survey) and geotechnical.

BAE has included Ground Penetrating Radar to confirm the accuracy of the VA’s as-built drawings relative to underground utilities.

As an early estimate, the open Cast-In Place parking structure will provide parking for 350 cars, and space as needed for mechanical and support space.

The Bancroft AE team is excited about this project, looks forward to VA comments and eagerly anticipates the design development stage.

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User Kick Off

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PROJECT KICKOFF AND DESIGN GOALS

The project kickoff meeting commenced on January 9, 2018 at Martinez VAMC facilities. This meeting was scheduled to define the project goals and client needs for Martinez VA Healthcare

System proposed Parking Structure. The existing conditions and restrictions of the space available were discussed along with options for development.

After the contract and schedule details were reviewed, the focus shifted to Parking and specific design requirements. The discussion below explores the paths to solving the needs and the resolution. The importance of efficiency improvement, security, flexibility, accessibility and patient experience were outlined.

Project Site:

The new Parking structure will be used for both employee and patient parking.

The design must maintain the two-way ring road around the main campus. During the construction phase, any work that involves the ring road or working off the ring road must be completed after hours.

The preference is for the third level of the parking structure to tie into the upper level of parking to the south of the new parking structure. A new prosthetics building is proposed adjacent to the recently constructed research building. The prosthetics building will start construction sometime in 2020 and must be complete by mid-2021. VA is working on the construction timing of the prosthetics and parking structure as these projects cannot be constructed simultaneously.

The retaining wall on the west side of the parking structure property is about 15’ from the property line. The general consensus of the VA and design team is that the most cost effective solution to this wall, which has signs of failing, is to replace the wall as part of this project. The cost of replacing this wall was considered when preparing the Construction Cost Limitation.

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VA plans to complete a boundary survey, topo, utility survey and tree survey.

Only the VA has jurisdiction over this project. No City or County agency can exert authority.

Overall dimensions of the structure were studied and Civil engineers indicate that two bay double-loaded structure, the minimum width of the structure would be approximately 126’. The width of the structure relative to the ring road and the retaining wall to the west will need review.

The setback of the retaining wall from the west property line became a question that will be answered by BAE and their civil subcontractor as that may be an easement.

The pros and cons of various structural systems will be reviewed by various project and resource constraints and a cast-in-place structure design is anticipated. Any structural system designed by Walker, the parking consultant, would be subject to the final design by the design/builder.

Existing PV panels on the surface lot located in the area of the new parking structure will not be reused for this project. The electrical output of the existing PV panels will be defined, and if replaced must be at least replicated with new, and probably more efficient, PV panels.

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There is currently a major utility shed and pedestals on site as shown below.

There is currently an electrical vault at the northwest corner of the property. There will be a 15

KV transformer from this location to the new prosthetics building and that line will be installed prior to construction of the new parking structure.

There is an existing gas line to the NW corner of the site which must be addressed before construction.

It was agreed that the floor to ceiling height of the parking structure will be 8’.

No fencing is required at the top level of the parking structure.

BAE is requested to design a structure that is appropriately aesthetic on three sides. The west elevation facing the west property line can be plain.

BAE is to include two elevators in the structure either located adjacent to one another or one at both ends of the structure

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The VA’s ADA requirement will be researched by Walker. The typical ADA slope requirement is

2% which would be 8 ADA for this 350 stall structure.

EV charging is not necessary, but to be confirmed if included within the parking structure

Shuttle parking (golf cart or larger) will not be within the parking structure

This project involves removing the existing smoking shelter which VA confirmed does not need to be replaced

The water loop is for both fire and domestic and can tie into that loop although pressure is unknown. Bancroft and Walker will review the code because sprinkling is not required by fire code but may be required by VA guidelines

A car counter indicating how many spaces are available on each floor may be included in the design, and possibly become a deductive alternate.

Project Limitations

There is an initial concern relative to the cost of replacing the retaining wall and the quality of the fill material under the current surface parking. Bancroft will engage a geotech ASAP to determine the structural capacity of the fill. If it structural capacity is marginal, there is the possibility that a quantity of material will need to be removed and replaced with structural fill.

Bancroft’s Parking consultant, Walker Parking, will develop concepts to be reviewed and discussed with the VA.

The viability of the Construction Cost Limitation and agreement on a conceptual direction are to be determined as soon as possible from geotech data and an initial Opinion of Probable

Cost.

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The existing Martinez VA Campus is shown below for reference. The project site is outline in yellow.

BAE will design a structure that is appropriately aesthetic on three sides. The west elevation facing the west property line can be plain.

A Geotech report was completed for the project site, by MatriScope.

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The structural capacity of the fill is encouraging. It will not be difficult to build on the site.

Walker indicated that the borings show that water table is acceptable, and spread footings are recommended. It is anticipated material will not need to be removed and replaced with structural fill. It is now confirmed that ‘sandstone formation’ on site is not concern for the specific project area. The report is attached in the Appendix.

The retaining wall on the west side of the property is about 15’ from the property line. The general consensus of the VA and design team was that the most cost effective solution to this wall, which has signs of failing, is to replace the wall as part of this project. Because the site slopes, the existing retaining wall is 6’ high on the south end and 20’ high on the north end.

The wall is a concern relative to structural rigidity. It is wavy and bowing in some places.

There is concern for maintaining the wall and building a new structure around it. Drilling piles or using piers may be an issue. The contractor will have added cost for liability insurance if the wall is to remain.

The general consensus of the VA during the Kick-Off Meeting was that the wall should be replaced and this additional cost would be acceptable by the VA.

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Architectural Basis of Design

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ARCHITECTURAL NARRATIVE

BASIS OF DESIGN

A. Exterior Design Concept

The Parking Structure exterior will be concrete. The design goal is to blend in as much as possible into the existing campus buildings, and act as a ‘background’ building.

Exterior Building Facade:

Design on Three elevations

Building façade - Cast in Place Concrete- Exterior design elements and addition of design materials to be developed.

Draw on the new Buildings anchoring the west end of campus

Use paint or other exterior finish to relate to color scheme.

Open Exit Stairs- Concrete/Steel stair units

Possible overhang on east elevation may add shadow which in turn reduces mass and recalls the overhang at top of parapet of clinical building.

A simple use of reveals can help to modulate the exterior

Metal mesh can be added to break up façade

Use of graphics and/or metal to help in wayfinding to call out the entrance.

Elevator Lobby-elevator lobby is an important for wayfinding space and is intended to give a sense of security for the user.

Photovoltaics may be added to front overhang or inboard.

PV on façade as an option (orientation, quantity, etc.)

Interior Detailing:

Possible Aluminum storefront door and framing system at grade level for possible enclosed elevator lobby exit.

Aluminum railing systems at exterior walls

Galvanized iron pipe railing systems

Galvanized steel pipe bollards

Joint sealant systems at floor expansion joints and other required areas

Painting:

Four-inch wide yellow parking space markings.

Fire protection piping will be painted red.

Interior Signage:

Graphic and way-finding signage

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Design Criteria

● NFPA 13: Standard-Installation of Sprinkler Systems

● NFPA 70: National Electrical Code

● NFPA 72: National Fire Alarm and Signaling Code

● NFPA 88A: Standard for Parking Structures

● NFPA 101: Life Safety Code

● ICC International Building Code

● ICC International Electrical Code

● ICC International Energy

● ICC International Mechanical Code

● ICC International Plumbing Code

VA DESIGN MANUALS:

● Parking Design Manual

● Fire Protection Manual

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US Department of Veterans Affairs VA Parking Demand Module.

July 2013

FIRE PROTECTION:

● NFPA 13: Standard-Installation of Sprinkler SystemsFire protection design shall comply with NFPA 88A Standard for Parking Structures.

● NFPA 13: Standard-Installation of Sprinkler SystemsInstall dry standpipe system, where applicable.

● NFPA 13: Standard-Installation of Sprinkler SystemsCoordinate location of Siamese fire department connection with local fire officials for sections of the parking structure that don't meet the rqmt.

● NFPA 13: Standard-Installation of Sprinkler SystemsProvide active fire suppression, mechanical ventilation, and a fire alarm system as required of open parking, in accordance with the referenced standard.

NFPA 88A:

CONSTRUCTION TYPE AND HEIGHT AND AREA LIMITATIONS:

● NFPA 13: Standard-Installation of Sprinkler SystemsPortions that are open parking structures, as defined in NFPA 88A, shall be in accordancewith NFPA 88A.

● NFPA 13: Standard-Installation of Sprinkler SystemsPortions that are enclosed parking structures, as defined in NFPA 88A, shall be in accordance with the IBC.

VA PARKING DESIGN MANUAL HIGHLIGHTS:

● Design to take cues from existing on-campus buildings for exterior vocabulary.

● VA emblem and other graphics are suggested.

● Stall Size 9' x 18'

● ADA Spaces Required 301-400 ( 12 spaces)

● Scooter and Bike parking also required.

● Parking access control provides refenue for use of parking resource and deter unauthorized non VA users.

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Bancroft Concept Ideas:

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Bancroft Concept Ideas:

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Walker Architectural Precedents:

PARKING FUNCTIONAL DESIGN NARRATIVE- WALKER PARKING

The parking structure is roughly 126’ wide 428’ long in overall plan dimension. The parking structure is a 2-bay 2 -1/2 level parking structure, with a parked-on ramp placed at the back of the site. An elevator core is provided at the southeast corner of the parking structure to provide pedestrian access at the ground level to the main center of campus and upper level access via bridge to the new clinical building.

The Parking Structure will provide approximately 350 new parking stalls.

Long span, cast-in-place, post-tensioned concrete system is the structural system for the parking structure. This type of structural system provides large, open parking areas unobstructed by columns, will enhance end user convenience.

The parking functional design of the Parking Structure utilizes 90-degree parking with two-way vehicular circulation. Standard stalls are sized 9’ x 18’ per VA recommended

MAbelmann Rectangle

MAbelmann Snapshot

Page | 27 parking geometrics. The typical double-loaded parking bay, consists of a drive aisle and parking stalls on both sides, has an overall width of 64’-0”, measured from the face of the building columns. Drive aisles widths are 24’ minimum as per VA guidelines at 90 degree two-way parking.

A minimum vertical clearance of 8’-4” is provided on all levels.

The grade of any area where parking spaces are provided does not exceed 2%.

Parked on ramps will not exceed 5%. The structure is designed as an open parking structure with openings on 4 sides with a partial basement open on 3 sides.

Accessible parking stalls provided in accordance with the requirements of the VA standards are provided for 3% of the total parking. Stalls are 8’ x18’ per VA parking geometric guidelines with loading aisles located on both sides of the accessible stalls.

Floor and roof slabs will be sloped to floor drains. The minimum slope to floor and roof slabs will be one percent for drainage. Floor drains will be located at interior column lines. Drainage washes will be provided at interior walls and columns to prevent ponding of water against these elements.

Future Electric vehicle charging stations will be accommodated for 6% of the overall parking. These are distributed evenly across levels one and two in closest proximity to the elevator core...

Vehicular directional signage will be provided to direct users to entry / exit locations, vertical circulation, and accessible parking.

VEHICULAR ACCESS AND CIRCULATION

Main access is located at two points along VA campus drive at the northeast and southeast ends. The north access enters at basement level and the South access enters at level one due to the slope of the site. Access to parking at the new clinical building’s parking area can be accessed via a vehicle bridge connecting from the second level south end.

Pedestrian circulation between the Parking Structure and campus buildings is planned at the south end nearest the elevator core via an exterior walkway that accesses an existing crosswalk area to the main campus. Access to the new clinical building will be via the bridge from the second level.

Vehicular circulation within the garage will be by a parked-on ramp located at the rear of the structure. This type of ramping design is the most efficient from a parking area ratio aspect. The orientation of the ramp’s slope from North to South provides the most efficient circulation from the North entry to the upper levels.

Design Codes and Regulations

1. International Building Code (IBC) 2015

2. Americans with Disabilities Act (ADAAG) 2010

3. VA Parking Design Manual 2013

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Misc. Architectural Precedents

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Engineering Basis of Design

1. Civil

2. Structural

3. Plumbing

4. Fire Protection

5. Mechanical

6. Electrical

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CIVIL Basis of Design:

Prepared By: Tam Duong, P.E., QSD/QSP – Chaudhary & Associates, Inc. (Civil) 10/11/2019

1) The new parking structure will be located at the northwest corner of the VA campus.

Existing Buildings AB5 with associated utility services, solar panels with associated electrical system and asphalt parking area underneath, mechanical equipment, and approximately 25 mature trees will be demolished. Existing Buildings AB6 and AB7 will be removed by a separate contract prior to construction of the subject parking structure. The existing large fuel tank at the northeast corner of the new parking structure will be demolished in the future by the VA (Not in Contract). It is important to note that all utilities serving the Clinical Building and the immediate areas must remain in service 24/7 during construction. Two new fire hydrants will be provided along the east side of the structure for fire-fighting purposes during and for post construction services.

2) An existing underground high voltage line crossing the new structure will be relocated by others. The major electrical shed and pedestal at northeast of the new parking structure to remain undisturbed, and it is highly recommended that existing conduits/duct banks in the vicinity of the shed be potholed and confirmed their exact location as soon as possible by the VA. The subject construction will also require existing dry and wet utilities serving the Clinical Building to be rerouted around the new structure. The existing transformer serving the Clinic Building to the south will be upgraded to service both the Clinic Building and the new structure.

3) Major soil excavation and fill up to 14 feet at the northern portion of the structure will be required to provide for the basement parking. Two new driveways will be provided to access the structure on the north and south sides along with a bridge to provide both traffic and pedestrian connection to the Clinical Building further south. The interior parking deck levels are not completely enclosed and subject to some storm water;

therefore, the interior drain inlets, including the roof level and the new driveways will be provided and connected to a storm drain system and piped to the two proposed bio retention facilities for storm water treatment in compliance with the Contra Costa

County and State Water Boards requirements prior to discharging to an existing public

Page | 32 storm drain system located at VA Campus Drive and Muir Road intersection. Site retaining walls will be required for the northern driveway and the bridge due to grade difference. An accessible path of travel will be provided to allow access between the new parking structure, elevator and existing sidewalk to the east and to the immediate areas.

STRUCTURAL NARRATIVE –WALKER PARKING

The structural design requirements and standards for the VA Martinez parking

Structure are discussed herein. The parking structure is proposed as a partial subterranean structure with a connecting bridge to the site parking lot.

I. Building Description

The parking structure is roughly 124’-0” wide x 426’-4” long divided into 2 sections with a seismic expansion joint at mid length. The joint is to alleviate thermal effect on the structure as well. The structure is a 2-1/2 level parking structure with two (2) levels of parking on the west half and 3 levels of parking on the east half. The parking structure will be designed to accommodate a future level of parking on both the east and west halves. The parking stalls are laid to follow the natural sloping grade at the site.

II. Structural System

A. Gravity Framing System

The gravity load support system for the elevated decks shall be 5” thick post-tensioned slabs supported on 14”x35” post tensioned beams. At the cross aisles on the east and west end, 24” x 36” girders will be provided to eliminate column on the drive aisles. The long span configuration allows for the most efficient parking layout.

The ground level on the west side and the basement level on the east side will be 5” thick concrete slab on grade. 5” thick concrete slab on grade will also be provided at the elevator lobby and stair landing. 10 mil vapor-barriers will be provided under the concrete slab at the elevator lobby and occupied rooms.

The columns and shear walls for the parking structure shall be cast in place concrete.

B. Lateral Resisting System

The lateral resisting system in the longitudinal direction (east-west direction) shall be

Special Reinforced Concrete Moment Frames. The moment frame beams will be upturned beams doubling up as vehicle crash barriers. The upturned moment beams will be 18” wide x 49” deep. The moment frame columns will be 24”x36” columns.

The seismic gap between the two sections of the parking structure will be determined by the anticipated building drift. The gap is estimated to be 4”.

The lateral resisting system in the transverse direction (north-south direction) shall be

Special Reinforced Concrete Shear Walls. The shear walls shall be located at the ends of the building and on each side of the seismic expansion joint.

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C. Elevator Lobby

The perimeter walls as well as the elevator shaft wall will be fully grouted concrete masonry units. The concrete masonry will provide both gravity support as well as the lateral resisting system.

D. Foundation System

The foundation is system shall be isolated spread footings. The footings supporting the moment frame columns will have 24” x 26” grade beams connecting them. The grade beams serve to resist the seismic moments at the bottom of the columns. The shear walls will be supported on mat footings. The mat footings may be extended to support the adjacent columns in order to increase the hold down weight on the footings. At the east end of the parking structure, concrete retaining walls will be provided to retain the soil under the footing

III. Design Criteria

The parking structure shall be designed to the loads and regulations required by all

Federal regulations, codes and in the State of California and the City of Martinez, and

Design Requirements of the Veterans Administration.

A. Design Loads

1. Dead Loads

Concrete weight 150 pcf

Concrete masonry weight 100 pcf

2. Live Loads

Parking 40 psf

Stairs and elevator lobbies 100 psf

Mechanical and electrical rooms 150 psf

3. Wind Loads

Exposure category “B”

Basic wind velocity, V 110 mph

Wind directionality factor, Kd 0.85

Topographic factor, Kzt 1.00

Velocity Coefficient 0.70

Gust effect factor 0.85

4. Seismic Loads

Mapped Spectral Acceleration, short duration, Ss 1.597 g

Mapped Spectral Acceleration, 1-sec duration, S1 0.600 g

Site Classification “C”

Site Coefficient, Acceleration factor, Fa 1.000

Site Coefficient, Velocity factor, Fv 1.300

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MCEr Spectral Acceleration, short duration, Sms 1.597 g

MCEr Spectral Acceleration, 1-sec duration, Sm1 0.780 g

Design Spectral Acceleration, short duration, Sds 1.064 g

Design Spectral Acceleration, 1-sec duration, Sd1 0.520 g

Design category, SDC “E”

East-West Direction Lateral System Concrete SMRF

Analysis Method Modal Response

System Ductility factor, R 8.00

Deflection Amplification factor, Cd 5.50

3.00

North-South Direction Lateral System Concrete Shear Walls

System Ductility factor, R 6.00

Deflection Amplification factor, Cd 5.00

2.50

B. Design Stresses

1. Concrete (Minimum 28-day Compressive Strength)

Post-tensioned Slabs and Beams F’c= 5,000 psi

Reinforced concrete slabs, beams and columns F’c= 5,000 psi

Moment Frame columns and beams F’c= 5,000 psi

Concrete Shear walls F’c= 5,000 psi

Barrier walls F’c= 4,000 psi

Mat foundation and retaining walls F’c= 4,000 psi

All other concrete F’c= 3,000 psi

2. Concrete Masonry

Design compressive strength F’m= 1,500 psi

Concrete Block Strength F’c= 1,900 psi

Concrete Grout strength F’g= 2,000 psi

Mortar strength, Type S F’m= 1,800 psi

3. Reinforcing Bars, ASTM A706 Fy= 60,000 psi

4. Prestressing Cables, ASTM A416 Fu= 270,000 psi

5. Structural Steel

Rolled wide flanged shapes, A992 Fy= 50,000 psi

Channels, angles and misc. steel, A36 Fy= 36,000 psi

Hollow Steel Sections, A500 Grade B Fy= 46,000 psi

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Steel Pipes, A53 Grade B Fy= 35,000 psi

Anchor Bolts, F1554 Grade36 Fy= 36,000 psi

IV. Governing Codes and regulations

A. International Building Code, IBC 2015

B. Minimum Design Loads for Buildings and Other Structures, ASCE 07-10

C. Building Code requirements for Structural Concrete, ACI 318-14

D. Building Code Requirements for masonry Structure, ACI 530-14

E. Specifications for Steel Construction, AISC Steel manual, 14th Edition

F. Post-tensioning Design Manual, 7th Edition

Environmental Assessment:

City of Martinez is under Contra Costa County Storm water jurisdiction which is the toughest agency in the Bay Area, especially our proposed parking garage. There is a storm water treatment requirement. Based on the preliminary layout and assuming 3 levels, it would require bio retention facility at flat ground level.

Water Service:

The proposed structure and existing water service line will be studied.

Fire Protection:

Coordination of existing fire hydrants, and need for new hydrants will be developed.

Sanitary Service:

The site sanitary line to be developed.

Storm Water:

A storm water management plan to be developed for this project.

The interior parking deck levels are not completely enclosed; therefore, the interior drain inlets, including the roof level will be provided and connected to a storm drain system and piped to the two proposed bioretention facilities for storm water treatment in compliance with the Contra

Costa County and State Water Boards requirements.

PLUMBING:

The design of the plumbing system will be in accordance with the latest editions of the following codes and standards:

International Plumbing Code

Underwriters Laboratory, Inc.

American National Standards Institute (ANSI)

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American Society for Testing Materials (ASTM)

American Water Works Association (AWWA)

Cast-Iron Soil Pipe Institute (CISPI)

VA Plumbing Design Manual Dated April 2010

VA Master Specifications (H-08-1)

VA Standard Details (H-08-4)

Plumbing Basis Of Design

Plumbing System Description

Storm (ST) Water:

Storm water collected through floor drains and discharged to a bio retention pond located to the North of the existing structure.

Pipe will be cast iron and sized to accommodate future expansion.

Provide floor drains to match architectural layout.

Sanitary (SS):

• The interior parking deck levels are not completely enclosed; therefore, the interior drain inlets, including the roof level will be provided and connected to a storm drain system and piped to the bio retention facilities for storm water treatment in compliance with the

Contra Costa County and State Water Boards requirements.

Provide floor drains to match architectural layout.

Domestic Water Supply:

Provide a combination 6” domestic cold water to serve fire protection and hose bibbs.

Domestic water line to service various interior frost proof hose bibs only.

Provide backflow preventer to serve the fire protection system and a RPZ to serve the hose bibbs.

FIRE PROTECTION BASIS OF DESIGN:

In NFPA 13 systems, sprinkler protection shall be provided in all spaces including, but not limited to, elevator machine rooms, electrical rooms*, plumbing or utility closets.

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* Note: While NFPA 13 allows the omission of sprinkler protection in electrical rooms within buildings under specific conditions, the VA does not permit the use of this exception. The VA requires sprinkler protection in all electrical rooms except stand-alone buildings dedicated to electrical service where applicable FM data sheets are followed.

Sprinklers are not required in interstitial spaces, except sprinklers are required in electrical closets located within interstitial spaces.

Sprinkler systems shall be hydraulically calculated by any design approach allowed by NFPA

13, except that the Special Design Approach shall not be used in Health Care. A safety factor shall be included by calculating the demand to a point no greater than 10% below the available water supply curve. Or, a ten percent safety factor shall be provided (subtract 10% from the available water supply curve) for each sprinkler demand including the required hose streams.

Delineate on the drawings special conditions per NFPA 13 such as storage racks/shelving location, height and configuration (including mobile shelving); atria; open ceilings, or architecturally sensitive areas; loading docks and exterior canopies; which may have an impact on sprinkler design and installation.

Sprinklers to be installed in VA facilities are required to be Factory Mutual (FM) approved as quick response except as identified below. At the present time, concealed sprinklers are not permitted to be used for new construction in VA facilities because there are none that have passed the FM test for quick response.

Standpipes shall be installed in all buildings where required by NFPA 101, NFPA 45, or NFPA

1, except as modified to install Class I hose connections per NFPA 14.

• Provide manual standpipe system for all levels. System to consist of vertical risers such that all floor areas are covered by a 100-foot long hose with 30 foot spray as required by code. All risers and interconnecting piping will be routed above ground and connected to standpipe system and Fire Department Connection (FDC) (located at south end of site). System will be a class I system (2 ½” hose valves). A new 6” pipe to be installed.

• Fire extinguishers will be placed throughout the structure per code.

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MECHANICAL:

The design of the HVAC systems shall be in accordance with the following codes and standards:

International Building Code

VA HVAC Design Manual 2011

International Mechanical Code (IMC)

ASHRAE Standard 170, Ventilation of Health Care Facilities

VA Master Specifications (H-08-1)

VA Standard Details (H-08-4)

Applicable National Fire Protection Association (NFPA) codes including, but not limited to, NRPA 70-93 (National Electric Code)

Sheet Metal and Air Conditioning Contractors Association (SMACNA)

Air Conditioning and Refrigeration Institute (ARI)

Underwriter’s Laboratories (UL)

National Electric Manufacturers Association (NEMA)

Mechanical Basis Of Design

The parking structure will require mechanical removal of equipment produced heat gains in the following rooms: Electrical room 2, SEC (IT Room) 3 and Elevator Equipment

Room 7. The Electric Room 2 and SEC 3 (IT Room) shall each be exhausted utilizing wall exhaust fans with backdraft damper and two louvers with respective intake louver on opposite wall. Fans shall be thermostatically controlled to operate as to not exceed 90F degrees. Sizes and performance shall be as scheduled on drawing M700. Elevator

Equipment Room 7 shall have a cooling only wall mounted 1.5-ton DX split system that includes wall mounted fan coil unit and dedicated remote air cooled outdoor condensing unit located on grade with performance as per schedule on drawing M700. All three rooms shall be provided with a temperature sensor to be monitored by the existing station Building Automation System controls.

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ELECTRICAL:

Design Criteria (CODES STANDARDS ANS SPECIFICATIONS)

The parking garage electrical design will consist of the utility incoming electrical service and distribution equipment for the normal and essential power necessary to support the garage as well as power for the elevators and any necessary HVAC equipment. The design will also consist of the lighting and lighting controls required for the parking garage. The designer and contractor shall conform to the following Codes, Standards and Guidelines and

Specifications for designing and constructing the parking garage:

CODES:

National Electrical Code (NEC) – NFPA-70

Life Safety Code – NFPA-101

Lightning Protection

Occupational Safety and Health Hazards (OSHA)

STANDARDS AND GUIDELINES:

VA Design Guides (PG-18-12)

VA Electrical Design Manual 2015 (PG-18-10)

American Institute of Steel Construction (AISC)

Illuminating Engineering Society of North America (IESNA)

ASHRAE Standard 90.1

NFPA 780 – Standard for the Installation of Lightning Protection Systems

2016 California Building Energy Efficiency Standards

IES Recommendations.

Demolition Scope:

Parking garage demolition scope consist of followings

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1. Demolish primary and secondary cables and underground duct banks to utility owned transformer T-18312.

2. Remove and handover utility transformer to utility company PG&E.

3. Demolish all feeder and branch cables and associated conduits go out from existing distribution switchboard by building AB-5. Demolish distribution switch board.

4. Design built contractor is responsible for total gut demolition of electrical, communication, security, fire alarm system in existing building AB-5, AB-6, and AB-7

5. Utility pole #110 265 706 located southeast corner of existing building AB-6 will require relocation. Coordinate with utility company for exact route of high voltage lines and provide new underground duct bank for new route as dictated by PG&E.

6. De-energize, make safe and remove SOLAR PANELS and INVERTER STATIONS in the garage footprint and turn over equipment to the VA. Package the Solar Panels to prevent damage while in storage.

7. Refer to electrical drawings for exact nature of demolition of existing communication risers, security risers, and fire alarm risers

New Electrical Design and Construction Requirements:

Coordination of Work Across Projects

The Designer and Contractor shall coordinate design and installation of Normal and

Emergency Power with VA Project No. 612 – 162, “CLINICAL BUILDING TO REPLACE

MODULAR”. Project 612 – 162, shall size the new transformer and distribution switchgear, and provide switchgear breakers, to accommodate both the New Clinic Building and the Garage.

Emergency power at 120V shall also be provided from the New Clinic Building. The Project

612 – 162 contractors shall properly size the Emergency Power 120V Distribution panel to accommodate both the New Clinic Building and the Garage.

Lighting Fixtures:

The Basis of Design utilized the following light fixtures for proper foot candles for the garage.

The VA can select any equal manufacturer for their final design.

Lithonia VCPG – VCPG LED V4 P1 40K 80CRI T5M MVOLT SRM UPL1 NLTAIR2 PIR DWHXD

Lithonia PGX – PGX LED P1 40K T5M MVOLT SRM NLTAIR2 PIR DWHXD

Kenall SPG – SPG18 DTS MW 5S SU TP 30L 40K8 DCC DV TL50DM

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Lighting Control system:

The Basis of Design utilized the following Lighting Control Systems. The VA can select any equal manufacturer for their final design.

Night Air-Outdoor Brochure 0219 from Acuity Brands, Kenall Teklink TL2000 Manual from Kenall.

The lighting and lighting controls will comply with the 2015 VA Lighting Design Manual, the

2016 California Building Energy Efficiency Standards and IES recommendations. The lighting control system for the parking garage will consist of motion sensors, daylighting controls, relay panels and demand responsive controls. The lighting will consist of LED luminaires with a color temperature 4000K and a minimum CRI of 85 in accordance with the 2015 VA

Lighting Design Manual requirements for parking structures.

Motion Sensors

All parking garage luminaires, including luminaires within the parking structure and on the roof of the parking structure will be controlled by occupant sensing controls in order to dim lighting between 20% and 50% when no activity is detected. For all outdoor building-mounted lighting, where the bottom of the luminaire is mounted 24 feet or less above the ground, there will be motion sensors that automatically dim the lighting power of each luminaire by 40% to

90% when no activity is detected. No more than 500 watts of rated lighting power will be controlled together as a single zone in accordance with the 2016 California Building

Energy Efficiency Standards.

Daylighting Controls

The parking garage luminaires that are within primary and secondary side lit daylight zones will be connected to automatic daylighting control and will be controlled independently from other lighting within the parking garage. The daylighting controls will be capable of continuously dimming the luminaires depending on the combined Illuminance levels from the rest of the controlled lighting and the daylight. The installation and configuration of the automatic daylighting controls shall be in accordance with the 2016 California Building Energy

Efficiency Standards.

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Relay Panel

All outdoor luminaires, including exterior building mounted lighting and lighting located on the roof of the parking structure, will be connected to a lighting control relay panel located within the parking structure. The lighting control panel will include a timeclock in addition to photo controls. The timeclock will control the outdoor lighting via a timed schedule while the photo control will turn the lights off when adequate daylight is available.

Demand Responsive Controls

Per the 2016 California Building Energy Efficiency Standards, the parking garage will have demand responsive controls that automatically reduce the lighting power in response to a

Demand Response Signal. This will allow the total lighting power of non-excluded spaces to be lowered by a minimum of 15 percent below the total installed lighting power when a

Demand Response Signal is received. The lighting will be reduced in a manner consistent with uniform level of illumination requirements.

Electrical Design Tools

SKM Power Tools Systems Analysis software will be used in order to determine fault current, protective device coordination, arc flash, load, feeder and equipment sizing, voltage drop and harmonic distortion. Lightning protection risk analysis calculations will be completed using the procedures indicated in NFPA 780. Lighting analysis software, such as ElumTools for Revit, AGi32 or Visual will be used to complete lighting photometric calculations.

Electrical Distribution System:

VA Project 612-162 shall be the source of Normal and Emergency Power to the Garage

Project 612-165. Project 612-162 shall provide transformer, switchgear and breakers to power both the New Clinic Building and the New Garage. Emergency Power at 120V shall be provided from new 120V Emergency Distribution Panel in the new Clinic Building.

The parking garage will be a new building on the Martinez VA Northern California Healthcare system Medical campus. The incoming electrical service for the parking garage will be supplied from the PG&E via 5kV rated underground feeders in separate concrete-encased duct banks. The distribution equipment for both the normal and essential power systems will

Page | 43 be comprised of distribution switchboard, and the secondary low voltage equipment will then feed downstream lighting and appliance branch panelboards within the parking garage.

Emergency power: As noted in the Coordination Work, the essential power for the parking garage will be provided from the New Clinic Building. The life safety loads include emergency egress lighting, exit signs, and Emergency Call Equipment and electrical equipment serving telecommunications rooms.

Basic Electrical Material and Methods:

The following is provided as “General Information”. The designer and contractor shall follow the stated Codes, Guidelines and Specifications for the actual detailed work.

Wiring:

1. Conductors will be copper with 600V, type THHN/THWN insulation.

2. Conductors No.12 and smaller will be solid copper. Conductors No. 10 and larger will be stranded.

3. Only UL listed materials, equipment and devices will be specified.

4. Conductor ampacities will be based on 60° C ratings for loads rated 100 amps and less and 75° C ratings for loads greater than 100 amps.

5. Minimum wire size will be #12 AWG for 480/277V branch circuits and #10 AWG for

208/120V branch circuits.

6. Power wiring will be sized to limit voltage drop in branch circuits to 3% at farthest outlet.

Total voltage drop for feeders and branch circuits will be limited to 5% overall.

Raceways:

1. 600V and auxiliary systems wiring will be installed in conduit or raceway. Minimum conduit size for 600V and auxiliary systems wiring will be ¾” (minimum) inside diameter and 2” for underground application. Open wiring is prohibited.

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2. Rigid Metal Conduit (RMC) with threaded fittings will be provided for embedded in concrete slab, and in exposed interior locations. In general, RMC will be galvanized steel.

3. Galvanized rigid steel conduit will be used for all conduits larger than 3”.

4. PVC coated Galvanized rigid steel heavy wall conduit with threaded fittings for all conduits exposed to the weather will be provided.

5. Conduit fill will be 40% or less as required by code.

6. All raceways will be independently supported from building structure. All raceways shall contain an equipment grounding conductor.

7. Recessed outlet and device boxes will be steel. Surface mounted boxes will be galvanized steel.

8. Conduit requirements for fire alarm, telephone, data transmission, and other auxiliary systems will be similar to that for 600V wiring. Conduit in office or other finished areas will be stubbed into space above suspended ceilings.

9. Color coding on all power, lighting, life safety, and other low voltage conduits will be provided as follows:

i. Fire Alarm conduit – Red paint

ii. Emergency lighting conduit – Yellow paint

iii. Normal lighting conduit – Green paint

iv. Normal power conduit – White paint

v. HVAC control conduit – Blue Paint

Grounding:

1. Equipment grounding conductors will be specified in all power conduits including feeders, branch circuits and switch legs.

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2. Each receptacle will be grounded by means of an insulated copper conductor.

Lightning Protection System Design:

Even though the garage is located in a low lightning zone per NOAA, Lightning protection is recommended due to the extensive installation of Low Voltage equipment that will be damaged from a lightning stroke; i.e. LED Lighting and Electronic Systems and future Solar Panel installation. The designer and contractor shall follow NFPA 780 and NEC 70E for detailed design. When designing Lightning Protection including Ground Rods, keep ground rods about

20 feet away from pedestrian entrances to keep “step voltages” at safe levels when pedestrians are present during a lightning strike. Additionally, Surge Protection per Table 4.20-

4 in NFPA 780 shall be installed on all light pole circuits that support lightning “air Terminals”.

The Surge Protector shall be grounded to the Lighting Circuit Ground, and not the Lightning

Protection ground system.

Code Call System:

The telecommunication systems and Fire Alarm systems for the parking garage will consisted, emergency blue call boxes and real time security cameras for security and responding to emergency calls from the garage.

Fire Alarm System Design:

Parking garage fire alarm system will consist of Fire Alarm Pull Stations located at Garage

Exits, and Strobes and Horns, and will be tied into existing hospital fire alarm system.

Telecommunications Room design:

The parking garage will consist of one telecommunications room to serve all the levels of the structure. The room will be located adjacent to the Electrical Room.