Attachment 8-Basis of Design-ATL.pdf

Charlotte Engineers | Guidon Design 1221 Pennsylvania Street, Indianapolis, IN 46204

SERVICE DISABLED VETERAN OWNED SMALL BUSINESS

ATLANTA VA HEALTHCARE SYSTEM

Trinka Davis 12 Bed CLC

VA Contract: 36C77622R0059

Project #: 508-349

For the

Department of Veterans Affairs

Atlanta, GA

BASIS OF DESIGN NARRATIVE

Bid Documents Submission

August 19, 2024

CHARLOTTE ENGINEERS – GUIDON DESIGN LLC.

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Project Contacts:

Darryl Ray – COR/Project Engineer– VA

A/E Design Team

Guidon Design Inc. – Project Management / Architecture / Interior Design / Structure/Civil

Charlotte Engineers –MEP

Mark VanderWoude Director, Structural Engineering – Guidon Design

317.800.6388 x 119

ISSUE DATE: August 19, 2024

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TABLE OF CONTENTS

I. Executive Summary

II. Narratives

II.1 – Civil/Site ......................................................................................................................... Page 5

II.2 - Architectural/Interior Design ........................................................................................ Page 10

II.3 - Fire Protection/Code Compliance/Life Safety .............................................................. Page 11

II.4 - Structural Design ........................................................................................................... Page 16

II.5 - Program ........................................................................................................................ Page 17

II.6 – Fire Protection .............................................................................................................. Page 17

II.7 – Mechanical - HVAC ....................................................................................................... Page 22

II.8 – Plumbing ...................................................................................................................... Page 24

II.9 – Electrical ....................................................................................................................... Page 28

II.10 – Telecommunications .................................................................................................. Page 34

II.11 – Sustainability……………………………………………………………………………………………….…………Page 39

Appendices

A. Probable Cost of Construction B. Soil Investigation C. QA/QC plan & VA Checklists D. Guiding Principles Checklist and Supporting Documentation E. Calcs and Cutsheets

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EXECUTIVE SUMMARY

The project intent is to add 12 beds to the Trinka Davis Veteran’s Village. These 12 private rooms will have private bathrooms and will have room for co-sleeper space. The rooms will consist of 10 “standard” CLC style rooms and 2 Bariatric rooms capable of patients up to

1000 lbs. This new CLC shall be integrated into the existing facility such that staff, patients, and visitors will be able to share spaces; this will be achieved through proximity to the existing facility, physical connection, and maintaining the unique style and aesthetics of the existing facility.

This addition to the Trinka Davis Veteran’s Village was also identified as an “end of life” or hospice unit. As such, the spaces will be slightly different than a typical CLC. There will be a commercial kitchen that is not intended to be used by patients; Meals will be prepared by staff and eaten in the Dining Room or a private room. The den is intended to be used for consultation and is to be accessed off the connector to the main facility. There is also a separate ambulance entrance to the addition.

Finally, the building is to be designed to follow the VA guidelines for sustainability/LEED Silver rating level, although the actual certification is not intended to be pursued.

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NARRATIVES

II.1 Civil/Site

1. Existing Conditions:

a. There is a concrete drive, lined with parking stalls, routed from Martin Drive to the canopy drop off area on the north side of the main building. Two turnarounds are along the drive, located near the northwest and northeast corners of the building. The proposed location for the new building is in the northwest corner of the Trinka Davis VAMC campus, where the western turnaround is currently located.

b. Currently, the north side of the existing building is primarily used by staff. Patients utilize the surface lot and garage on the south side of the building and use the main entrance on the south face of the building as well.

c. The existing site has a concrete drive with parking stalls and a turnaround. The turnaround is bordered with a concrete sidewalk and curb gutter, as well as a dozen small to mid-sized trees. The turnaround has mulched, landscaped island. Site lighting aligns the turnaround and parking area. A dumpster pad surrounded by bollards is located on the west side of the concrete drive.

d. The drive and turnaround slope slightly to the west. To the west of the turnaround, there is a grass hill that drops down in elevation 7-feet at approximately 25% slope.

There is a 3-foot hill to the north of the parking stalls as well. The base of the hill has dense brush, trees, and a decorative metal fence along the property limits. The property limits on the north and west side of the site are screened with dense vegetation, consisting of shrubs and trees.

e. The stormwater on site is collected by storm inlets on the west side of the project site.

The storm sewer is routed off the project site in sewers ranging from 26-inch to 36-inch diameter, discharging to a detention pond on the north side of campus. This detention pond discharges the overflow north off campus into a culvert underneath Almon Rd.

f. The soils on site are primarily fill soils that are silty sand and sandy silt.

g. The existing site is not in compliance with the VA Security Manual, as vehicular movement can get within the Live Safety 25-feet offset required for the existing building. The turnaround, parking stalls and drive, as well as the covered drop off area to the west of the project area currently allows for cars to travel, load, as well a park within this required offset.

h. A topographic survey was conducted by TerraMark Land Surveying, Inc. in May 2023. As-builts of the main building were also utilized.

i. Site lighting poles and decorative bollards with lighting are within the project area. Electrical conduits for lighting are routed from the east and loop the turnaround. There is an electrical box on the north side of the drive, near the existing canopy.

ii. A stormwater curb inlet is on the west side of the turnaround. A 36-inch diameter corrugated metal storm sewer, conveying collected runoff from the south of the building, runs along the west and north side of the site. The sewer

P a g e | 6 is routed to a retention pond on the north side of campus. The topographic survey was unable to located this sewer, however, the sewer is identified in the as-builts of the main building’s construction.

iii. There is a water line running through the middle of the project area, routed to a fire hydrant on the north side of the drive, near the existing canopy.

i. The site is not within the floodplain, per FIRM Flood Insurance Rate Map 13045C0258D (Drainage Narrative Appendix Y, FIRM Map). There are no known wetlands, invasive species, or endangered species within the project area.

j. A Geotechnical Engineering Report by Terracon Consultants, Inc. in June 2023 indicates that the soils on site are primarily fill soils that are silty sand and sandy silt.

Groundwater was observed 14 to 16-feet below grade.

k. An Infiltration Testing Report by Terracon Consultants, Inc. in August 2023 indicates that the soils at the project site have a saturated hydraulic conductivity (Ksat) value ranging from 0.43 to 1.07 inches/hour and soils in the detention pond have a saturated hydraulic conductivity (Ksat) value of 0.84 inches/hour.

l. The project will follow the requirements and guidelines of the following documents:

i. Manual for Erosion and Sediment Control in Georgia 2916 Edition by Georgia Soil and Water Conservation Commission (GSWCC)

ii. Georgia Stormwater Management Manual 2016 Edition Volumes 1 and 2

m. Per these documents, the design is required to meet one of two requirements: retain the first 1.0 inch of rainfall on site; or, treat the first 1.2-inches of rainfall with BMPs to remove at least 80% of the calculated average annual post-development TSS loading from the site.

n. The site is within Lake Carroll Village and zoned as C-2 General Commercial (Narrative Appendix X, Zoning Map).

i. Per the City of Carrollton Unified Development Ordinances Section 4.02.01, the required minimum setback from the property line to the wall of the building is to be a minimum of 15-feet for side yards and rear yards

ii. The adjacent properties to the north and west of the project site include residential properties. Per the City of Carrollton Unified Development Ordinances Section 4.07.05, a buffer is required. An acceptable buffer is a minimum 20-feet wide landscaped buffer. Another acceptable buffer is a minimum 10-feet wide landscaped buffer and an opaque fence or barrier at least 6-feet in height.

2. Demolition:

a. Full-depth asphalt, present in the parking lot and the roundabout, will be completely removed after saw cutting the existing pavement section.

b. Concrete curb and gutter sections within the parking lot and the roundabout will undergo saw cutting and subsequent removal.

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c. The demolition will involve the complete removal of a concrete sidewalk located on the south-east side of the roundabout. The sidewalk will be sawcut and cleared.

d. The removal of vegetation, including the root ball, is planned for areas outside the roundabout and the parking lot. Additionally, a 6-foot-tall decorative metal fence on the north side of the parking lot and the building will be taken down.

e. All five site lighting fixtures positioned around the parking lot and the roundabout will be removed as part of the demolition process.

f. Electrical conduit, originating from the north-east corner of the parking lot, encircling the roundabout, and extending into the building, will be entirely removed.

g. A concrete post barricade with lighting situated on the south-east side of the roundabout, along with another concrete post barricade west of the Dumpster Pad, are both scheduled for demolition.

h. The demolition plan includes the removal of the concrete pad located within the dumpster pad area.

i. The fire hydrant situated on the north-east side of the parking lot will be removed.

j. The water line, running from the north-east to the south-west of the parking lot and roundabout, will be dismantled and taken away.

k. Signs located at the start and end of the roundabout, as well as above the sidewalk on the east side of the roundabout, will be taken down.

l. The detectable warning strip, located just before the sidewalk on the south side of the parking lot, will be removed.

m. The demolition process involves the removal of a storm structure situated south of the dumpster pad, just before the roundabout starts. Additionally, the attached storm sewer will be removed. The existing storm structure on the west side will also be dismantled.

3. New Site Work:

a. The proposed site work includes a new concrete drive and turnaround on the east side of the building. The turn around will have one accessible parking stall and one standard parking stall. To the west of the drive, there is an access drive that is routed to the building’s ambulance dock. This access drive will have gate arms at the entrance and the exit of the drive.

b. Concrete sidewalk is to be installed along the east and south side of the new building, as well as along the western side of the existing main building, tying into the sidewalk by the existing loading dock.

c. A new dumpster pad will be installed to the northeast of the turnaround. The dumpster pad will be surrounded by an opaque fence.

d. The City of Carrollton’s setback requirements will be met by 20-foot vegetation buffers or 10-foot vegetation buffers in addition to an opaque fence. An opaque fence will be installed on the north side of the site along the property limits, replacing the metal decorative fence. A 10-foot vegetation buffer will be installed north of the turnaround

P a g e | 8 and dumpster pad. The northwest and west side of the building will have a 20-foot vegetation buffer. Existing vegetation in addition to new trees and shrubs will be utilized to meet this requirement.

e. A 6-foot tall decorative metal fence will be installed on the north and southwest sides of the building, restricting access to the back side of the building. A gate will be installed on both of these fences.

f. A retaining wall will be installed on the north side of the turnaround and dumpster pad.

The retaining wall will be up to 4.5 feet tall. A decorative metal fence will be installed along the retaining wall perimeter.

g. The existing drive and curb and gutter location on the north side of the existing building allows vehicles to drive within the 25-foot offset of the existing main building. The proposed work will tie back into this curb and gutter location. However, the proposed work will maintain the 25-foot offset for the new building per the Life Safety requirements. The proposed site work will reduce the extents of where vehicles can drive within this offset of the existing building.

h. Turnaround with an island is navigable to single unit passenger vehicles. Larger vehicles will not be able to navigate the turnaround without making multiple maneuvers. The dumpster pad can be accessed by a single unit 30-ft long truck to back up to the pad.

However, 30-ft long trucks or larger cannot navigate the turnaround or ambulance access; these vehicles have to reverse the concrete drive.

i. The new building and relocated fire hydrant are accessible by firetruck. Due to space limitations, the turnaround is not sufficiently sized for the fire truck to turnaround; the truck will have to reverse 234-feet before utilizing the existing turnaround on the northeast side of the existing building. This reverse exceeds that allowable 150-feet reverse distance per the 2018 IFC. A discussion with the Carrollton County Fire Department Fire Marshal determined that this is acceptable due to space constraints.

4. Water Supply

a. An existing hydrant is located on the north side of the access drive. This hydrant will be removed and replaced by a fire hydrant to the northwest, in order to accommodate the new turnaround and dumpster pad location. The fire water line is to be rerouted along the north and west side of the new building, tying back into the existing water line on the southwest side of the new building. A water main is routed to this hydrant around the west side of the existing building. This water line will be relocated around the new building. The fire and domestic water service for the new building will be tapped off of this line. Fire Protection and domestic water testing indicate that there is sufficient capacity for this new service.

5. Sanitary Sewer:

a. No existing sanitary sewers were identified on the northwest side of the building. The existing sanitary sewers on the south and west side of the existing building are too shallow for the new service to be ties into by gravity flow. The building will have a new sanitary lateral routed to Almon Rd. A manhole will be installed to intercept the new service and existing 8” VCP line. The invert elevation for this sewer is available at the

P a g e | 9 downstream manhole. It is required to field verify the existing sanitary sewer’s invert at the location of the new manhole.

6. Storm Drainage System / Management:

a. The existing stormwater on site is collected by curb inlets and routed to a storm sewer that discharges into a detention pond located on the north side of the campus. The detention basin has a control structure that discharges a controlled flow into the Carrollton municipal stormwater system.

b. Stormwater calculations are required to determine the impact of the project on the stormwater system and to determine the impact of the project to the downstream basin. The existing detention system is sufficiently sized to address quality and quantity performance of the stormwater discharging from the project area. Infiltration testing within the basin allows for infiltration and storage to meet the following requirements listed below.

c. The project is a redevelopment of an existing site, as the land disturbing activity is approximately 1.2 acres. There are 12 Stormwater Management Standards that are required, per the Georgia Stormwater Management Manual 2016 Edition Volumes 1 and 2. A summary of the stormwater management performance requirements include:

i. Retain the first 1.0 inch of rainfall on the site, or; the remaining runoff from the 1.2-inch rainfall event must be treated by BMPs to remove at least 80% of the calculated average annual post-development TSS loading from the site. The design accomplished the first requirement of capturing and retaining the first

1.0 inch of rainfall on site.

ii. The post-development discharge rate is to be controlled to the pre-development rate for the 2-year through the 25-year return frequency storm events. ICPR was utilized to calculate the discharge rates. An underground stormwater storage and infiltration system is proposed to accomplish these discharge rate requirements.

iii. The 100-year, 24-hour storm event must be controlled and/or safely conveyed by maintaining existing 100-year floodplain or ensuring floodplain is adequately sized.

iv. A downstream peak flow analysis of the watershed downstream of the site where the area of the site comprises 10% of the total drainage area. The 25-year, 24-hour storm flows cannot increase at the outlet. Due to limitations of available downstream capacity information, the design ensures that the downstream peak flow is reduced.

d. Phasing Plan

i. The site is only accessible from the east, so the work will be constructed from west to east.

ii. The sidewalk along the west side of the existing building is to be constructed first, as once the building is constructed this side of the building will have limited access.

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iii. Site demolition and utility relocation is required prior to the construction of the building. Utilities routed along the west side of the building shall be installed before the building is constructed to ensure access. Staging will be located on the turnaround and parking aisles along the north side of the existing building, east of the project site.

e. Erosion & Sediment Control:

i. The disturbed area is approximately 0.67 acres. The hills on the west and north side of the site are vulnerable to erosion due to their steep grade. Protecting these hills with erosion control methods is important. Erosion control blankets, inlet protection, and silt fences will be utilized to protect the site from erosion.

A construction entrance located on the east side of the site will be utilized to prevent vehicles from transporting soil offsite.

II.2 Architectural/ Interior Design

The architectural design approach is to relate to the existing architectural vocabulary at the village.

The proximity to the Main CLC building requires exterior architectural detailing that respects and references the original structure.

The design approach to the exterior building envelope, structure, and roof assembly stems from three premises – the height of the new building, selection of materials, and exterior architectural elements and details used in order to achieve a design that is sympathetic to the existing campus. The design team has prepared an outline of materials, roof system and structure comprising the main components of the building design. They are as follows:

• Steel frame structure with composite metal decking and concrete slab floors, see structural narrative for alternates.

• Exterior wall to be brick and stone veneer with closed cell spray foam insulation and sheathing on cold formed metal stud framing.

• Pitched roof assembly will be comprised of pre-engineered light gage trusses with synthetic clay tile roofing to match those used for existing roof. Roof to have in R-30 insulation.

• Low slope roof assembly will be comprised of R-30 minimum continuous insulation, vapor barrier and EPDM roof membrane. The structure will not slope. Drainage will be achieved by use of tapered insulation to roof drains connected to internal drain leaders.

• Exterior doors to be aluminum frame entrance doors and storefront to match the existing building.

• Windows to be aluminum frame windows with in between glass muntin grids to match existing building.

• Cold formed metal stud framing (3-5/8”, 6” and furring sizes) interior partitions and exterior wall furring as needed.

• Prefinished metal gutters and downspouts to match existing building.

• Interior wall finish of painted GWB.

• Interior ceiling to be approximately 60% drop-in ACT ceiling and 40% painted GWB.

• Interior doors to be hollow metal frames with stained flush wood doors.

• The 10 standard rooms shall be provided with a “H” style patient lift system with a 600lb capacity. The lift system will provide coverage of as much area as practical including the patient bathrooms. The bariatric rooms will have lift systems capable of 1000lb.

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• See Interior Narrative for additional finishes.

INTERIOR DESIGN

The new CLC Building at VA Trinka Davis will be a single-story building with a mechanical basement.

The building will be designed to be a space that supports personalized care for veterans administered with integrity, respect, and commitment. The building design will consist of 12 patient rooms, with two out of the twelve rooms designed to serve bariatric patient population. The building will be connected to the existing CLC via a covered, temperature-controlled walkway. A common living and dining space, with elevated ceilings and large windows, shall provide space for patients to socialize, have a meal together, or meet with visitors. With a full-service commercial kitchen on the premises, the staff offices and restricted areas are intended to be “back of house” in the core of the building.

The patient rooms will be located at the periphery to capture daylight and views, critical to patient healing and wellbeing. Each patient room will have an attached restroom and a closet for storage.

Enclosed patio spaces around the building will allow patients to be close to nature and enjoy the outdoors.

The finishes for the new building shall align with the finishes used in the existing CLC building at Trinka Davis. Paint colors to be matched with the existing colors and other finishes to align with color palette currently in place. Finishes shall include high performance latex paint; LVT shall be used for flooring in most of the dining, corridor, and patient room areas. Carpet is proposed to be used in common living area spaces, whereas restrooms shall have ceramic tile flooring. All casework to be plastic laminate. Charting stations and millwork to have solid surface countertops and backsplashes. Fixed furniture shall be provided by the contractor. All corridors and high traffic areas shall have high impact resistant wall covering. Locally manufactured, natural stone tile veneer, set in mortar bed will be used both indoors and outdoors to match the aesthetic of the existing CLC building.

II.3 Fire Protection/ Code Compliance/ Life Safety

PG 18-3 Design and Construction Procedures

VA Directives, Design Manuals, Master Specifications, VA National Cad Standard Application Guide, and other Guidance on the Technical Information Library (TIL) (http://www.cfm.va.gov/TIL/).

VA Design Manuals PG-18-10

ARCHITECTURAL, AUGUST 1, 2014

ASBESTOS ABATEMENT, JULY 2011

AUTOMATED TRANSPORT SYSTEMS, May 2023

CPM SCHEDULE AND RISK MANAGEMENT, VOL. 1 & 2, DECEMBER 2012

ELECTRICAL, DECEMBER 2019

ESTIMATING, MARCH 8, 2011

FIRE PROTECTION, NINTH EDITION, NOVEMBER 2023

HVAC DESIGN MANUAL – NOVEMBER 1, 2017, REV NOVEMBER 2023

INTERIOR DESIGN, NOVEMBER 1, 2020

LIGHTING, JANUARY 2022

http://www.cfm.va.gov/TIL/

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PHYSICAL SECURITY DESIGN MANUAL, OCTOBER 1, 2020, REV JUNE 2023

PLUMBING, JANUARY 2023

SIGNAGE, MAY 2023

SITE PARKING, APRIL 2023, REV NOVEMBER 2016

SITE DESIGN, FEBRUARY 2013, REV APRIL 2021

STEAM BOILERS, VOL 1 OCTOBER 2022

WATER BOILERS, VOL 2 DECEMBER 2023

OUTSIDE STEAM AND HEATING HOT WATER DISTRIB. SYSTEMS, VOL 3 SEPTEMBER 2022

STRUCTURAL, OCTOBER 2022, REV JULY 2023

SUSTAINABLE DESIGN, MAY 2014, REV AUGUST 2017

TELECOMMUNICATIONS, FEBRUARY 2016

VA Design Guides PG-18-12

INPATIENT MENTAL HEALTH AND RESIDENTIAL REHAB FACILITIES, JANUARY 2021

MENTAL HEALTH OUTPATIENT SERVICES, JULY 2018

Other Criteria

ARCHITECTURAL BARRIERS ACT ACCESSIBILITY STANDARDS (ABAAS) INCLUDING VA

SUPPLEMENT, BARRIER FREE DESIGN STANDARD PG-18-13, JANUARY 2017, REV OCTOBER

NEPA INTERIM GUIDANCE FOR PROJECTS PG-18-17, SEPTEMBER 2010

SEISMIC DESIGN REQUIREMENTS, H-18-8, JULY 2023

ENERGY POLICY ACT OF 2005 (EPACT)

OCCUPATIONAL, SAFETY, AND HEALTH ADMINISTRATION (OSHA) STANDARDS

EXECUTIVE ORDER 13423: STRENGTHENING FEDERAL ENVIRONMENTAL, ENERGY, AND

TRANSPORTATION MANAGEMENT.

Governing Building Codes

NFPA 101 LIFE SAFETY CODE, 2024 EDITION

NFPA NATIONAL FIRE CODES WITH THE EXCEPTION OF NFPA 5000 AND NFPA 900, INCLUDING

BUT NOT LIMITED TO:

NFPA 10, STANDARD FOR PORTABLE FIRE EXTINGUISHERS, 2022 EDITION

NFPA 13, STANDARD FOR THE INSTALLATION OF SPRINKLER SYSTEMS, 2022 EDITION

NFPA 70, NATIONAL ELECTRIC CODE, 2023 EDITION

NFPA 72, NATIONAL FIRE ALARM AND SIGNALING CODE, 2022 EDITION

NFPA 80, STANDARD FOR FIRE DOORS AND OTHER OPENING PROTECTIVES, 2022 EDITION

NFPA 99, HEALTH CARE FACILITIES CODE, 2024 EDITION

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NFPA 220, STANDARD ON TYPES OF BUILDING CONSTRUCTION, 2024 EDITION

NFPA 241, STANDARD FOR SAFEGUARDING CONSTRUCTION, ALTERATION, AND

DEMOLITION OPERATIONS, 2022 EDITION

ICC INTERNATIONAL CODE COUNCIL CODES, INCLUDING BUT NOT LIMITED TO:

INTERNATIONAL BUILDING CODE, 2021 EDITION

INTERNATIONAL PLUMBING CODE, 2021 EDITION

INTERNATIONAL MECHANICAL CODE, 2021 EDITION

INTERNATIONAL ENERGY AND CONSERVATION CODE, 2021 EDITION

ASHRAE STANDARDS, AS REFERENCED WITHIN OTHER CODES INCLUDING, BUT NOT LIMITED

TO:

90.1 ENERGY STANDARDS FOR BUILDINGS EXCEPT LOW-RISE RESIDENTIAL BUILDINGS,

2016 EDITION

170 VENTILATION OF HEALTHCARE FACILTIES, 2017 EDITION

188 LEGIONELLOSIS: RISK MANAGEMENT FOR BUILDING WATER SYSTEMS, 2018 EDITION

FACILITY GUIDELINES INSTITUTE (FGI)

GUIDELINES FOR DESIGN AND CONSTRUCTION OF HOSPITALS, 2018 EDITION

GUIDELINES FOR DESIGN AND CONSTRUCTION OF OUPATIENT FACILITIES, 2018 EDITION

BEHAVIORAL HEALTH DESIGN GUIDE, 2019 EDITION

ASCE-07-10 MINIMUM DESIGN LOADS FOR BUILDING AND OTHER STRUCTURES

ACI 318-11 BUILDING CODE REQUIREMENTS FOR STRUCTURAL CONCRETE

ACI 530-11 BUILDING CODE REQUIREMENTS AND SPECIFICATION FOR MASONRY

STRUCTURES

AISC 341-10 SEISMIC PROVISIONS FOR STRUCTURAL STEEL BUILDINGS

AISC 360-10 SPECIFICATION FOR STRUCTURAL STEEL BUILDINGS

Code Criteria

General: This summary of code requirements is based primarily on NFPA 101 (LSC). Design features not addressed by NFPA 101 or documents referenced therein shall comply with the requirements of the latest edition of the IBC or as otherwise identified. For design features that are addressed by both the IBC as well as NFPA 101 or a document referenced by NFPA 101, the requirements of NFPA 101 or the document referenced by NFPA 101 shall be used exclusively (this applies even if the IBC requirements are different).

Local codes: as an agency of the federal government, VA is not subject to local imposition of code enforcement procedures (drawing reviews, building permits, inspections, fees, etc.). VA must function as the authority having jurisdiction (AHJ) and thus has the responsibility to guard public health and safety through enforcing its adopted codes.

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Notes: Should a conflict exist between VA requirements and VA adopted nationally recognized codes and standards, the conflict shall be brought to the attention of VA. The resolution of the conflict shall be made by the authority having jurisdiction for VA to ensure a consistency system wide.

Code review

The 2024 edition of the Life Safety Code, NFPA 101, has been used to review this project for compliance with the fire and life safety requirements. For features not addressed by NFPA 101 and the referenced national fire codes, the 2021 edition of the International Building Code has been used.

Project scope

The CLC will be a 12-bed unit. The construction type is determined based upon the allowable area and height requirements of Chapter 5 of the 2021 IBC. Construction type and materials shall be per Chapter 6 of the IBC.

Occupancy type: Existing B, I-1. New I-2 Healthcare, IBC Chapter 3/LSC Chapter 18

Construction type: Existing IIB, IIIA. New IBC II-B, NFPA II(000)

3. Fire resistive ratings type construction, Chapter 6 IBC/NFPA 101:

Structural frame: noncombustible, 0-hour fire resistive

Bearing walls noncombustible, 0-hour fire resistive

Exterior: noncombustible, 0 -hour fire resistive

Interior: noncombustible, 0-hour fire resistive

Non-bearing walls and partitions

Exterior: noncombustible, 0-hour fire-resistive

Interior: noncombustible, 0-hour fire-resistive

Floor: noncombustible, 0-hour fire resistive

Roof: noncombustible, 0-hour fire resistive

Shaft enclosures 1-hour fire resistive <4 stories (IBC 713.4, LSC 12.3.6)

4. Structural design shall comply with Chapter 16 of the IBC.

5. Allowable height: 55’. (IBC, table 504.3)

6. Allowable number of stories above grade plan: 1. (IBC, table 504.4)

7. Allowable area: 44,000 SF. (IBC, table 506.2)

8. Building separation: >30’: 0-hour fire rating

9. Occupancy separation: 2-hour fire rating

10. Means of egress

• Clear width of corridors shall be clear 96 inches.

• Clear width of doors shall be clear 36 inches

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• Not less than 2 exits shall be provided per floor.

• Occupancy load: <500 therefore 2 exits required (NFPA 101 7.4.1.1)

• Maximum travel distance, fully sprinkled: 200 feet (NFPA 101 18.2.5.7.2.4)

• Common path of travel shall not exceed 100 feet (NFPA 101 18.2.5.2)

• Dead end corridors shall not exceed 30 feet. (NFPA 101 18.2.5.3)

• Means of egress shall be illuminated. (LSC 18.2.8)

• Exit signage shall be provided. (LSC 18.2.10)

11. Protection from any area having a degree of hazard greater than that normal to the general occupancy of the building or structure shall be provided by protecting the area with automatic extinguishing systems in accordance with section 9.7(3). Where hazard is severe per LSC Chapter 18, soiled holding, protection is provided with an automatic extinguishing system the space shall also be enclosed with smoke partitions in accordance with section 8.4.

• 1-hour fire resistance rating and automatic sprinkler system is required for the following:

soiled holding and high hazard content areas per LSC 18.2.2.

12. Interior finish

• Walls and ceilings: interior finish flame spread shall be limited per Chapter 8 of the NFPA 101 to Class A, B and C materials. Interior wall and ceiling finish shall be Class A or Class B in exits, corridors and lobbies, and Class A, Class B, or Class C in all other areas. (LSC 18.3.3)

• Class A: flame spread 0-25; smoke developed 0-450.

• Class B: flame spread 26-75; smoke developed 0-450.

• Floors: interior floor finish shall be Class I or Class II in corridors and exits.

• Fabric draperies, curtains (excluding shower curtains, but including cubicle curtains), and other loosely hanging fabrics and films serving as furnishings or decorations in health care occupancies must meet the flame resistance requirements of NFPA 701, standard methods of fire tests for flame-resistant textiles and films.

• Upholstered furniture and mattresses. Upholstered furniture and mattresses must also meet specified requirements, based on NFPA 260, NFPA 261, NFPA 266, 16 CRF 1632, ASTME E1537, and ASTME E1590.

• New finishes shall be as follows:

As shown on drawings (60% submission and later)

13. Extinguishments requirements, portable fire extinguishers shall be provided per NFPA 10.

(18.3.5)

14. Detection, alarm, and communications systems – See Fire Protection Section of this narrative.

15. Fire suppression – See Fire Protection section of this narrative.

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II.4 Structural Design

DESIGN CODES:

• IBC 2021 - "International Building Code"

• ACI Standard 318-19, "Building Code Requirements for Structural Concrete", American Concrete

Institute

• AISC Steel Construction manual, 15th edition

• Significant variations from the above in local building codes shall be brought to the attention of the structural engineer, for approved substitution prior to their use in the structural design.

ROOF FRAMING:

The main elevated portion of the structure for the CLC building will consist of concrete composite steel wide flange beams supported by a mix of wide flange and HSS tube shaped columns. The steel structural elements and composite deck are all designed to resist load defined by governing codes in addition to blast loading for a VA Essential facility per the requirements set forth by the VA Physical Security Resiliency Design Manual. The composite deck is designed to act as a “lid” to protect the structural elements in the event of a blast, however in order to achieve the hipped roof design for the clear story additional structural supports are to be provided in the form of cold form steel trusses and metal roof deck spanning across the top chord. As these trusses are purely to support the aesthetic of the architectural roof design, in the event of a blast event they are considered sacrificial.

In addition to the main CLC building, Guidon has also designed a structurally isolated connecting corridor between the existing main building and the new CLC building. This corridor structure consists of metal roof deck supported by steel wide flange beams and HSS tube columns.

LATERAL BRACING SYSTEM FOR SEISMIC & WIND LOADS:

Seismic and wind loading will be transferred to the structure by use of moment frames located at all clear story framing locations.

FOUNDATIONS:

Individual walls will be supported by a foundation wall that will sit on a continuous footing underneath.

Due to grade changes and the addition of a basement, some of the foundation will serve as retaining walls supporting backfill for the slab on grade. Retaining walls on the exterior supporting backfill and the brick façade have been designed as a cantilever style wall resisting the active earth pressures. Walls specifically supporting the basement steel framing have been designed as restrained and to resist the At-Rest earth pressures. Structural steel columns will be supported on concrete piers that will transfer the load to a typical shallow footing. All foundations will sit at a minimum of 2 feet below grade to ensure the structure will not be subjected to heave from the soil freeze-thaw cycles. All footings have been designed with an assumed allowable bearing pressure of 3,000 psf per the referenced geotechnical report.

STRUCTURAL LOADING CRITERIA:

Roof live loads shall be based on geographical location and local governing building code requirements; however, they shall not be less than 20 psf. Where the roof elevations of the structures vary, snow drift loads will be considered.

The snow, wind and seismic loads will be based on the following criteria:

o Snow Load Design Data:

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▪ Ground Snow Load, pg = 5 psf

▪ Low-slope Roof Snow Load, pf = 4 psf

▪ Snow Exposure Factor, Ce = 1.0

▪ Thermal Factor, Ct = 1.0 o Wind Load Design Data

▪ Basic Wind Speed (3-second gust), V = 115 mph

▪ Wind Exposure = B o Seismic Load Design Data (assumed values will be verified with geotechnical report):

▪ Short Period Spectral Response, Ss = 0.187g

▪ 1-Second Spectral Response, S1 = 0.085g

▪ Seismic Importance Factor, I = 1.25

▪ Risk Category = III

▪ Seismic Design Category = C

▪ Site Classification = D per Geotech report

▪ Short Period Spectral Response Coefficient, Sds = 0.199

▪ 1-second Spectral Response Coefficient, Sd1 = 0.135

▪ Basic Structural System / Seismic Resisting System: Steel Systems not specifically detailed for seismic resistance, excluding cantilever column systems.

▪ Analysis Procedure Utilized = Equivalent Lateral Force Procedure

▪ Response Modification Coefficient, R = 3

II.5 Program

Summary: The units shall be built according to the Small Homes Design Guidelines. In March of 2019, a new version of The Small Homes Design Guide, replaced the previous CLC or Community Living Centers Design Guide. In accordance with the new guidelines, all the room and attached bathrooms in the short stay unit will be universal in size.

II.6 Fire Protection

Fire Protection System Description

1. For the design features that are addressed by NFPA 101 or a document referenced by NFPA

101, the requirements of NFPA 101 or the documents referenced by NFPA 101 must exclusively be used this applies even if other code requirements are different.

2. Local Codes, as an agency of the federal government, VA is not subject to local imposition of code enforcement procedures (drawing reviews, building permits, inspection fees, etc.). VA must function as the authority having jurisdiction (AHJ) and thus has the responsibility to

P a g e | 18 guard public health and safety through enforcing its adopted codes. At this time no conflicts are identified.

3. In areas of scope of work where twelve (12) bed building addition shall occur for this area of work. The new fire suppression system, sprinkler piping, sprinkler heads, sprinkler branch piping, fitting, hangers, and other miscellaneous items shall be provided for a complete fire suppression system.

4. The fire sprinkler system will be designed and installed per latest editions of the National

Fire Protection Association (NFPA) standards, Technical Information Library (TIL) Division 21

Specifications, and per the requirements of VA Fire Protection Design Manual.

5. Sprinkler Discharge Densities will follow the requirements stated in the Technical

Information Library (TIL), Specification 21 13 13, “Wet-Pipe Sprinkler System.”

6. The size of the distribution main within the building will use the fire hydrant flow tests provided by ATCO Fire Protection as a design input where the results of the test are 1,130 gpm flow capacity with 80 psi static pressure and 52 psi residual pressure and the distribution piping shall be fed at the closest tie in point.

7. Sprinkler piping shall be routed to accommodate the architectural configuration. All new sprinkler heads shall be ceiling mounted, semi-recessed to match existing conditions in the

Trinka Davis adjoining building and meeting the VA Fire Protection Design Manual. The sprinkler heads shall be mounted on a smooth ceiling for typically light hazards and if any rooms meet the requirements for Ordinary Hazard Group 1 and Ordinary Hazard Group stated in Specification 21 13 13, Wet-Pipe Sprinkler System then semi-recessed sprinkler heads with ordinary hazard design criteria shall be provided in the affected room/area.

8. A wet pipe, automatic sprinkler system utilizing quick-response type sprinkler heads will be furnished/installed in all locations within this scope of work. Sprinkler head finishes will be bronze upright in areas without ceilings and, semi-recessed pendent sprinkler head with two-piece escutcheon plate in all finished areas meeting existing conditions.

9. Electric Rooms shall be provided with sprinkler protection meeting the requirements of the

VA Fire Protection Design Manual and NFPA 13.

10. Fire Alarm and Sprinkler Zones share the same boundaries meeting the VA Fire Protection

Design Manual.

11. The kitchen hood suppression system shall meet the requirements of NFPA 17A and NFPA

96.

12. Hydraulic calculations shall be prepared by the installing contractor and the calculations shall meet NFPA 13, Section 28.1.1.1(2) and provide a minimum of 10 percent safety factor using water flow velocities not exceeding 20 feet per second meeting the VA Technical

Information Library (TIL) requirements. Hydraulic placard plates will be provided on each riser assembly meeting NFPA Standards.

13. All wet-pipe sprinkler systems will be hydrostatically tested per NFPA 13 and the VA Fire

Marshal by the fire protection installation subcontractor. The fire suppression contractor shall test the system at 225 psi or 50 psi above operating pressure (whichever is greater) for

2 hours and copies of the Material Test Certificates will be provided for the VA Fire Marshal’s records.

14. All sprinkler piping 3 inch and larger shall be seismically braced. Seismic design and installation will be based on the requirements of NFPA 13 and meet the requirements of the

VA the Seismic Design Requirements Manual.

mvanderwoude Text Box

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15. The fire sprinkler system will be designed and installed per the latest editions of the National

Fire Protection Association (NFPA) standards, Technical Information Library (TIL) Division 21

Specifications, and per the requirements of VA Fire Protection Design Manual.

16. Sprinkler Discharge Densities will follow the requirements stated in the Technical

Information Library (TIL), Specification 21 13 13, “Wet-Pipe Sprinkler System.”

17. Lower duration values specified in NFPA 13, Table 19.2.2.1 shall be used as a basis of design since the sprinkler water flow alarm device(s) and supervisory device(s) are electronically supervised and such supervision is monitored at an approved, constantly attended location.

Fire Protection During Construction

1. Fire protection during construction of the new building shall follow the requirements of

Specification 010000, General Requirements and NFPA 241 to include but not limited to:

a. Separation distance between the new building construction and construction-related structures for temporary offices, trailers, sheets, lay-down yards, etc., shall be maintained and in compliance with NFPA 241.

b. Hot Work Permits, Fire Watch, Temporary Heating Equipment, Smoking, Waste

Disposal, and Handling & Storage of Combustible and Flammable Liquids

Requirements shall be compliant with NFPA 241.

c. Temporary wiring & lighting and extension cords shall follow the requirements of

NFPA 70, National Electric Code.

d. Contractor fire safety program shall comply with the requirements of NFPA 241, Section 7.1.2.

e. Owner’s Responsibility for Fire Protection where a VA shall designate an owner’s representative where a person shall have the responsibility for the fire prevention program and who shall ensure that it is carried out to its completion shall be an owner responsibility item.

f. Fire Protection installations shall comply with the requirements of NFPA 13, 25 & 72.

g. Fire Hydrants shall be free access from the street to the fire hydrants and outside connection for sprinklers and other fire extinguishing equipment whether permanent or temporary and it shall be provided and always maintained.

h. First-Aid Fire-Fighting Equipment shall comply with NFPA 241.

i. Adherence to NFPA 241, Section 8.2, “Scaffolding, Shoring and Forms.”

j. Fire protection during construction where a water supply for fire protection, either temporary or permanent shall be made available as soon as combustible material accumulates on the project site.

k. Wet-pipe sprinkler system shall be provided, installed and in service as soon as practicable.

l. The requirements of Chapter 9, “Safeguarding Roofing Operation” of NFPA 241 shall apply concerning the means and methods of roof installation.

m. A written fire prevention, fire suppression and emergency evacuation plan shall be developed, maintained and kept up to date at the project site.

n. All fire protection extinguishing equipment applicable to the hazard shall be provided, e.g., ABC Fire Extinguishers

p) All hot work shall comply with NFPA 51B.

Fire Alarm System Description

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1. The fire alarm system will be a Class B, fully addressable, multiplexed fire alarm system complying with the requirements of NFPA 72. The system will comply with the NFPA, and VA

Fire Protection Design Manual. Fire alarm pull stations will be located at each exit door and at other strategic points as required by the National Fire Alarm Code and the VA Fire

Protection Design Manual for detection and audio/visual annunciation. Smoke Detection shall be provided where, the fire alarm transmitting equipment is located. Duct smoke detectors shall be used to control HVAC equipment shutdown where required by Code.

2. For the design features that are addressed by NFPA 101 or a document referenced by NFPA

101, the requirements of NFPA 101 or the documents referenced by NFPA 101 must exclusively be used this applies even other code requirements are different.

3. VA is not subject to local imposition of code enforcement procedures (drawing reviews, building permits, inspection fees, etc.). VA must function as the authority having jurisdiction

(AHJ) and thus has the responsibility to guard public health and safety through enforcing its adopted codes. At this time no conflicts are identified.

4. The fire alarm system additions will be a class-B fully addressable monitoring points that shall be added to the existing fire alarm control panel.

5. The fire alarm system additions shall be installed as required by NFPA 101 and shall be designed to meet the requirements contained in NFPA 72 and the VA Fire Protection Design

Manual.

6. The fire alarm system shall meet the requirements where the system shall have a "Pathway

Designation" of a Class B system, fully addressable, multiplexed fire alarm system complying with NFPA 72 and the VA Fire Protection Manual.

7. The fire alarm system additions shall be fully addressable fire alarm system designed to the standards of a Class B Circuit and Pathway (e.g., NFPA 72, Chapter 12). The signaling line circuit connecting annunciators shall be Class B (Style 4). The signaling line circuit connecting to addressable/digital devices including detectors, and notification circuit modules shall be

Class B. All notification appliance circuits shall be Class B.

8. Wiring will be installed in metal raceways within the building to meet the requirements of

Pathway Survivability Level 2 in compliance with NFPA 72, Section 12.4.3. The wiring for the local building fire alarm system within new building construction shall be as defined by NFPA

72 as follows:

a. Initiating Device Circuits (IDC): Class B

b. Notification Appliance Circuits (NAC): Class B

c. Signaling Line Circuits (SLC): Class B

9. All notification devices shall be individually addressed and connected to a signaling line circuit.

10. Visual alarm devices will be installed in all public and patient toilet areas. Combination audio and visual devices will be installed within corridors, at exits, and within large assembly areas in accordance with the requirements of the National Fire Alarm Code and the VA Fire

Protection Design Manual. Manual fire alarm boxes shall be installed within 60 inches of exit doors for compliance with NFPA 101, Section 9.6.2.3; and additional manual fire alarm boxes shall be provided so that the travel distance does not exceed 200 feet, measured horizontally (e.g., Refer to NFPA 72, Section 17.14.8.5).

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11. Corridor smoke detection shall be provided in all smoke compartments containing patient rooms meeting NFPA 101, Section 18.3.4.5.3 at 30 feet on center for advance notification of a potential fire incident.

12. The commercial kitchen area shall be provided with smoke detection meeting the requirements of NFPA 101, Section 18.3.2.5.3(13).

13. The new Fire Alarm Control Panel for the new Trinka Davis Building addition shall be interfaced with the existing main fire alarm control panel located in room E048.

14. The fire alarm control panel shall have secondary power supply using batteries and the batteries shall have sufficient capacity to operate the system under quiescent load for a minimum of 24 hours and at the end of that period shall be capable of operating all alarm notification appliances used for evacuation or direct aid to the location of an emergency for

5 minutes (Refer to NFPA 72, Section 10.6.7.2.1). The installing contractor shall prepare battery calculations and the calculations shall include a minimum 20 percent safety margin above the calculated amp-hour capacity required (Refer to NFPA 72, Section 10.6.7.2.1.1.

15. Visual alarm notification devices shall flash in synchronization where multiple appliances are in the same field of view, as defined by NFPA 72 and the VA Fire Protection Design Manual.

16. The fire alarm system will conform to NFPA, VA Fire Protection Design Manual and ABA

(Architectural Barriers Act), Accessibility Standard for Federal Facilities regulations.

17. There are door holders, smoke detectors, and notification devices within the area of the scope of work.

18. Visual alarm devices will be installed in all public and patient toilet areas. Combination audio and visual devices will be installed within corridors, at exits, and within large assembly areas in accordance with the requirements of NFPA 72 and the VA Fire Protection Design Manual.

19. Combination audio and visual devices will be installed within corridors, at exits of the single-story building addition and Smoke Detectors shall be provided in accordance with the requirements of NFPA 72 and the VA Fire Protection Design Manual.

20. VA Fire Protection Design Manual, Section 7.4.D only allows smoke detectors to be installed only where required by National Fire Codes and the VA Fire Protection Design Manual, such as elevator lobbies for elevator recall, locations where a fire alarm control panel are located or Telecommunication spaces where smoke detectors provide early warning of a fire in accordance with NFPA 75 throughout the space and installed in accordance with NFPA 72.

21. All fire alarm wiring must be installed in raceway separate from all other system in compliance with the VA Fire Protection Design Manual, Section 7.2.D.

22. The scope of work areas will have requirement of employing relocation or partial evacuation, wiring shall be installed in a metal raceway within the areas that a protected throughout by sprinkler protection are considered to…