Attachment 3 - VA Boston Radiation Therapy Design Narrative.pdf

PRIME / MEP / STRUCTURAL ARCHITECTURAL CIVIL / SITE

CITP / LIFE SAFETY GEOTECHNICAL

ENVIRONMENTAL COST ESTIMATING

VAMC Boston – Jamaica Plain – Radiation Therapy Expansion &

Renovation

Design Narrative

100% Bid Documents Submission – September 17, 2021

Jamaica Plain Medical Center – Veteran Health Administration

150 S. Huntington Avenue Boston, MA 02130

Above Group, Inc. Design Analysis Report

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VAMC Boston – Jamaica Plains – Radiation Therapy Expansion &

Renovation

Concept Submission – January 8, 2021

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1 TABLE OF CONTENTS

2 GEOTECHNICAL

3 LIFE SAFETY

4 SITE DESIGN

5 STRUCTURAL

6 ARCHITECTURAL

7 FIRE SUPPRESSION

8 PLUMBING

9 MECHANICAL

10 ELECTRICAL

11 COMMUNICATION

12 ELECTRONIC SAFETY AND SECURITY

13 FIRE DETECTION AND ALARM

14 ENVIRONMENTAL / ASBESTOS ABATEMENT

15 COST ESTIMATE

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2 GEOTECHNICAL

The geotechnical report is attached as an appendix at the end of this report.

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3 LIFE SAFETY

3.1 OVERVIEW

The intent of this project is to consolidate Radiation Therapy functions to one area of the VA Jamaica

Plain Medical Center and improve patient treatment workflow. The project includes 690SF addition within the existing exterior courtyard. 775SF of space within the existing radiation therapy department will be repurposed. 1,291SF of existing spaces will be refreshed.

The radiation therapy department is in the basement level, wing d.

The scope of work includes the reconstruction of existing areas and an addition.

The existing building wet‐pipe sprinkler system will be modified throughout all heated/conditioned areas of the reconstructed building. The existing wet‐pipe sprinkler system will be extended throughout all heated/conditioned areas of the building addition.

The existing fire alarm system will be modified to include new devices for the reconstructed area and extended to include new devices for the addition.

3.2 APPLICATION

VA has adopted the National Fire Codes (NFC) published by the National Fire Protection Association

(NFPA), which establish a minimum acceptable level of life safety and property protection. Life safety requirements are specifically addressed in the Life Safety Code, NFPA 101. Where conflicts exist between codes, the designer shall follow the code specified in the text under the subject section of this

VA Fire Protection Design Manual. Fire Protection design shall be based on the latest editions of the NFC at the Date of Award. See codes and standards section for editions used.

Fire protection features not addressed by the NFC or otherwise addressed by this document shall be designed to comply with the requirements of the latest edition of the International Building Code (IBC).

For design features that are addressed by both the IBC as well as by 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).

3.3 CODES AND STANDARDS

The VA Fire Protection Design Manual in conjunction with the Scope of Work in the

Architecture/Engineer Package, and PG‐18‐15, Minimum Requirements for A/E submissions will be used for the design of this project. In addition, requirements with other applicable VA criteria will be coordinated. The following is a list of VA and other design and construction criteria that shall be utilized by the A/E for the development of the design of this project:

Pg-18-10, Design Manuals: Fire Protection Eighth Edition, June 2021

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VA A/E Design Submission Requirements for Minot And NRM Construction Program PG-18-15 Volume C, November

Architectural Barriers Act

International Building Code 2018

National Fire Protection Association (NFPA)

Fire Code NFPA 1, 2021

Standard for Portable Fire Extinguishers NFPA 10, 2018

Standard for Installation of Sprinkler Systems NFPA 13, 2019

National Electric Code NEC 70, 2020

National Fire Alarm and Signaling Code NFPA 72, 2019

Standard for Fire Doors and Other Opening Protectives NFPA 80, 2019

Standard for The Installation of Air-Conditioning and Ventilating Systems NFPA 90A, 2021

Life Safety Code NFPA 101, 2021

Standard for Fire Safety and Emergency Symbols NFPA 170, 2018

Standard on Types ff Building Construction NFPA 220, 2021

Standard for Safeguarding Construction, Alteration, And Demolition Operations NFPA 241, 2019

Building Construction and Safety Code NFPA 5000, 2021

3.4 FIRE PROTECTION DURING CONSTRUCTION

Separate all occupied areas from demolition, renovation, or construction activities by temporary smoke‐ tight construction partitions of gypsum board or other approved non‐combustible or limited‐ combustible material. Partitions shall be full height, extending through suspended ceilings to the floor slab or roof deck above and shall be one‐hour fire rated, unless sprinklers are installed and are operational on both sides of the temporary partition whereupon the partition may be permitted to terminate at the ceiling in accordance with NFPA 241. Where the ceiling on one side of the temporary construction barrier has been removed, the temporary partition must extend to the deck above.

Construction will be phased as necessary to ensure that obstruction of exits is minimized or avoided. If exits are obstructed during construction, alternate exit routes will be provided during each phase of construction and alternate routes will be identified on the construction drawings.

Minimize or avoid disruptions to fire alarm and sprinkler systems. Delineate phasing of construction to ensure that installations of new systems are expedited, and where possible, maintain existing systems in service until the replacement system is operational. If fire protection systems are to be disrupted, ensure procedures are incorporated to maintain equivalent levels of fire protection and provide formal

100% Bid Documents 9 VA Boston Jamaica Plains ‐ 523‐417 notification to the facility while systems are down. All planned fire protection system shutdowns or outages are to be coordinated with the VA COR at least 3 business days in advance.

3.5 ACCESSIBILITY

VA is required to comply with the Architectural Barriers Act (ABA).

3.6 BUILDING REHABILITATION

Rehabilitation work on existing buildings shall be classified as one or more of the following work categories:

1. Repair – The patching, restoration, or painting of materials, elements, equipment, or fixtures for the purpose of maintaining such materials, elements, equipment, or fixtures in good or sound condition.

2. Renovation – The replacement in kind, strengthening, or upgrading of building elements, materials, equipment, or fixtures, that does not result in a reconfiguration of the building spaces within.

3. Modification – The reconfiguration of any space the addition, relocation, or elimination of any door or window; the addition or elimination of load‐bearing elements; the reconfiguration or extension of any system or the installation of any additional equipment.

4. Reconstruction – The reconfiguration of a space that affects an exit or a corridor shared by more than one occupant space or the reconfiguration of a space such that the rehabilitation work area is not permitted to be occupied because existing means of egress and fire protection systems, or their equivalent, are not in place or continuously maintained.

5. Change of Use – A change in the purpose of level of activity within a structure that involves a change in application of the requirements of the code.

6. Change of Occupancy Classification – The change in occupancy classification of a structure or portion of a structure.

7. Addition – An increase in the building area. Aggregate floor area, building height, or number of stories of a structure.

The existing occupancy classification of the Radiation Therapy Department is business in accordance with NFPA 101. The new occupancy use of the area of rehabilitation and the addition will be business.

Any building undergoing addition shall comply with the requirements of NFPA 101 §43.8 [NFPA 101

§43.1.2.3].

Where an addition is made to a building, both of the following criteria shall be met [NFPA 101

§43.8.1.1]:

1. The addition shall comply with other sections of NFPA 101 applicable to new construction for the occupancy

2. The existing portion of the building shall comply with the requirements of NFPA 101 to existing building for the occupancy.

An addition shall not create or extend any non‐conformity with regard to fire safety or the means of egress in the existing building for which the addition is constructed [NFPA 101 §43.8.1.2].

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Any repair, renovation, alteration, or reconstruction work within an existing building to which an addition is being made shall comply with the requirements of NFPA 101 §43.3, 43.4, 43.5, 43.6 [NFPA

101 §43.8.1.3].

A reconstruction shall comply with all of the following [NFPA 101 §43.6.1]:

NFPA 101 §43.6 – Reconstruction

NFPA 101 §43.5 – Modification, except that any stairway replacing an existing stairway shall be permitted to comply with NFPA 101 §7.2.2.2.1.1(3)

NFPA 101 §43.4 – Renovations

The means of egress in the reconstruction area shall comply with the requirements applicable to the existing occupancy chapter, as modified by NFPA 101 §43.6.2 [NFPA 101 §43.6.2]. Means of egress in rehabilitation wok areas shall be provided with illumination, emergency lighting, and marking of means of egress in accordance with the requirements of other sections of NFPA 101 applicable to new construction for the occupancy. The means of egress in the addition area shall comply with the requirements applicable to the new occupancy chapter.

Newly constructed elements, components, and systems shall comply with the requirements of other sections of NFPA 101 applicable to new construction [NFPA 101 §43.5.1.3].

3.7 TYPE OF CONSTRUCTION

Fire resistance ratings of structural members shall be in accordance with NFPA 220.

The construction type of the existing building and addition is Type II (000).

3.8 BUILDING SEPARATION

The requirements for fire resistance ratings of exterior walls, maximum area for exterior wall openings, and opening protection shall comply with the IBC except as follows:

There are no requirements for separation or openings between VA buildings when both (all) buildings are fully sprinkler protected. This exception does not apply to VA buildings that are adjacent to non‐VA property lines.

Building separation requirements are identified in IBC table 705.5 and opening requirements are identified in IBC table 705.8. There are no requirements in the IBC where greater than 60 feet of separation between buildings or greater than 30 feet of separation between a building and a property line occurs.

Building where scope of work area is located and VA buildings that are adjacent to the work area are fully sprinkler protected. No building separation requirements are required.

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3.9 VA HOSPITAL BUILDING SYSTEM (INTERSTITIAL)

No interstitial space is being provided as part of this project. This section is not applicable.

3.10 INTERIOR FINISH

Wall and ceiling finishes and moveable partitions shall conform to NFPA 101.

Interior floor finish shall conform to NFPA 101.

3.11 SITE CONSIDERATION

Access for emergency vehicles shall be in accordance with NFPA 1

Roads, fire lanes, and turn‐arounds for the weight and turning radius of shall be designed for local fire apparatus. At minimum, one of the long sides of every building shall be accessible to fire department equipment.

3.12 INSULATION, INCLUDING FOAM PLASTIC

Comply with IBC.

3.13 ROOF COVERINGS AND ROOF DECK ASSEMBLIES

Roof coverings shall be approved or listed by a nationally recognized testing laboratory for compliance with UL standard 790 and shall be Class B minimum.

Roof deck assemblies shall be FM Class I approved or shall be UL listed as Fire‐classified.

3.14 ROOF ACCESS

Comply with IBC.

There are no shelters, pavilions, connecting corridors, or similar structures located near the addition.

This section is not applicable.

3.16 FIRE AND SMOKE BARRIERS

Fire and smoke barriers shall be provided as required by NFPA 101.

3.17 PROTECTION OF OPENINGS

Openings in fire rated barriers shall be protected according to NFPA 101, 80, and 90A. Doors in such openings shall be normally closed, unless equipped with electromagnetic door hold open devices arranged to close upon activation of the fire alarm system or smoke detector installed proximate to the door. Fire shutters shall be provided to protect openings in fire rated barriers designed to be normally

100% Bid Documents 12 VA Boston Jamaica Plains ‐ 523‐417 open. Shutters shall be designed to close upon activation of a smoke detector proximate to the shutter.

Such detectors shall close all shutters within a fire barrier served. Closing speed shall be in accordance with NFPA 80. Fire dampers shall be installed in fire rated barriers in accordance with NFPA 90A. Fire rated glazing, where used, shall meet applicable safety standards.

3.18 SUITES

Suites are not provided as part of this project.

3.19 EXIT SIGNS

Two exit signs are not required to be visible in an exit access corridor.

Exit signs with tritium are not permitted.

3.20 DOOR LOCKING REQUIREMENTS

Doors are permitted to be locked in the direction of egress travel under conditions identified in NFPA

101 as follows:

A. Delayed egress where permitted by the occupancy chapter

B. Access controlled where permitted by the occupancy chapter

C. Elevator lobbies where permitted by the occupancy chapter

D. For the safety of patients in healthcare occupancies

1. Patient room doors

2. Means of egress for the clinical needs of the patients

3. Means of egress where patient special needs require specialized protective measures

4. Doors in non‐healthcare occupancies for the safety of patients.

3.21 SPECIAL PROTECTION

3.21.1 Storage

Storage rooms shall be considered hazardous areas and shall comply with appropriate occupancy chapter requirements of NFPA 101.

Rooms containing medical records storage or moveable‐aisle/mobile shelving shall be provided with automatic sprinkler protection and enclosed with a barrier having a one‐hour fire resistance rating.

3.21.2 Flammable and Combustible Storage

Comply with NFPA 30. Provide adequate space for flammable and combustible liquid storage cabinets.

3.21.3 Compressed Gas/Cryogenic Liquid Storage

Location, construction, and arrangement of compressed medical gas storage areas shall comply with

NFPA 99.

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3.22 OCCUPANCY CLASSIFICATION

Occupancy classifications are defined by NFPA 101.The building contains business occupancies. The existing basement floor is business occupancy classification. The reconstruction work area will be business occupancy classification. The addition will be business occupancy classification.

Buildings containing multiple occupancies shall be considered mixed or separated as required by NFPA

101. Buildings containing occupancies that are not incidental to the primary occupancy shall comply with the most restrictive requirement of the occupancies involved, unless separated by barriers have fire resistance ratings as required by NFPA 101.

3.23 MEANS OF EGRESS

3.23.1 General

Primary means of egress shall be via exit stairs and doorways. A minimum of 2 separate means of egress are required from the space.

Means of egress shall be arranged to meet the limits for dead ends, common paths, and total paths of travel as required for the occupancy use of the area. Every corridor shall provide access to not less than two approved exits without passing through intervening rooms unless the path meets the definition of a common path or dead end and is within the allowable limit. Corridors are not required to be separated from non-hazardous spaces and may pass through open office areas.

3.23.2 Occupant Load

NFPA 101 Table 7.3.1.2 provides occupant load factors to be used in calculating the number of people on any floor (or in any area/room). Occupant load totals are calculated by identifying incidental and accessory occupancy use spaces (assembly, storage, mechanical, classroom, mercantile, etc.) per floor basis. Each incidental/accessory room is assigned an individual occupant load based on its area and occupant load factor. The occupant loads from the incidental/accessory rooms are added to the main occupancy occupant loads to determine the total occupant load.

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4 SITE DESIGN

Demolition

The existing flagstone courtyard will be fully removed, along will all Associated amenities.

Existing raised planter and four (4) concrete benches will be removed.

Two (2) catch basins will be removed along with the associated storm piping.

existing ada ramp to be removed.

32 LF portion of existing retaining wall to be removed.

Site Improvements

1,000± SF addition proposed.

New ADA ramp proposed in the general location of the demolished ADA ramp. Ramp will be lengthened, as compared to existing, to reduce slope.

Steps provided adjacent to proposed ADA ramp.

26.5 LF retaining wall with railing adjacent to proposed ADA ramp.

Walkway between existing catch basins to be regraded to provide positive drainage away from proposed door.

Utilities

Three (3) existing catch basins to remain. Middle catch basin to be adjusted to ensure the top of the catch basin is level with the proposed sidewalk.

The middle catch basin will connect to the existing storm sewer located within the courtyard through the use of 42 LF of 12” PVC piping. The ultimate discharge of the storm sewer will be below the existing building.

Roof drains will connect to the existing storm sewer located within the walkway between the proposed addition and the existing building façade located east of the proposed addition.

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5 STRUCTURAL

Overview

This project will consist of structural design and drawings for new, approximately 1,600 SF one‐story horizontal expansion to the existing Radiation Therapy Facility. We anticipate the following structural engineering scope of work for the new expansion:

Primarily framing will be structural steel beams and columns. Where required, the existing concrete structure will be used to support new framing.

Walls will be composed of cold‐formed steel studs and cladding per architect

All new walls will be supported on cast in place concrete footings placed at four feet below finished grade (frost line) and a cast in place concrete stem wall extending to grade.

The roof system will be composed of pre‐engineered steel joists with a Type “B metal deck and anticipates no future vertical expansion

General:

Governing Building Code is the 2018 International Building Code

Structural systems design will incorporate the requirements of the following building codes and guidelines:

o ASCE/SEI 7‐16 o AISC Steel Construction Manual, 15th Edition o ACI 318‐19

Minimum load requirements:

Live Loads Roof 20 PSF + Equipment Weight (if applicable)

Wind Loads Ultimate Wind Speed 128 MPH Exposure Category C Risk Category III Wind Pressure Coefficient ± 0.18 PSF

Snow Loads

Ground Snow Load 40 PSF

Seismic Loads

Per VA Document H‐18‐8 “Seismic Design Requirements” and the Massachusetts State Building Code

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6 ARCHITECTURAL

Project Scope:

The intent of this project is to consolidate Radiation Therapy functions to one area of the VA Jamaica

Plain Medical Center and improve patient treatment workflow. The project includes a 690sf addition within the existing exterior courtyard. The addition will house office space, a larger dosimetry room and clean utility storage. 775sf of space within the existing radiation therapy department will be repurposed to provide tele/data and electrical closets, wheelchair storage, interview / vitals room, medication room and a larger control room. The nurse’s station and stretcher holding bay, will be relocated within the unit. 1,291sf of existing spaces, including the reception/waiting area, exam rooms, and office spaces, will be refreshed with new flooring, wall paint, ceiling tile, millwork, and light fixtures. The project also includes replacement of the existing 3‐ply modified bituminous roof in like and kind.

Exterior Wall Construction and Design:

The exterior wall assembly will be cold form metal stud rain screen construction, designed to meet physical security requirements. The exterior skin will be metal panels to match the existing linear accelerator addition. The height of the parapet will match the height of the older concrete portion of the unit.

Typical wall assembly

5/8” Type X Gyp

6”cold form metal studs @ 16” O.C.

1” thick min. spray foam insulation metal plate, as required for physical security

5/8” exterior Gypsum Sheathing

Continuous air / vapor barrier

3” continuous insulation

Air space

Cladding Material

Deduct Alternates:

1. Change exterior wall assembly from CFM studs to 6” CMU block

2. Reduce number of rooms to be refreshed

3. Reduce scope of refresh

4. Keep existing roof

Interior Design and Finishes:

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The goal of the project is to create a warm and inviting atmosphere for patients that reflects the level of sophistication of the technology being utilized by the department. Existing finishes will be upgraded and new finishes will match or complement the existing space.

Flooring:

Faux Wood LVT: Match existing LVT flooring in reception/waiting, exam rooms, clean utility, wheelchair storage, stretcher holding, and new corridors.

Faux Wood LVT Accent: Approach to Reception Desk

Static Dissipative Sheet Flooring: Tele/data and Electrical Closets

Carpet Tile: Offices

Wall Base:

6” Rubber Cove Base: Typical

Wall Finish:

Painted Walls, typ: Level 4 finish, eggshell paint

Impact Wall Protection: Wheelchair Storage, Stretcher Holding Bay

Handrails: Corridor

Corner Guards: All exterior corners within scope of work

Ceiling Finish:

2’x2’ Acoustical ceiling tile: ceilings to be 9’‐0” AFF unless otherwise noted on the RCP

Decorative Acoustic Metal Panels: Above Reception and Nurses Station

GWB: Misc. soffits, as shown on the RCP

LightGlass Skylight Fixtures in Reception/Waiting

VA Existing SkyFactory Fixture to be reused in Stretcher Holding Bay

Acoustics:

All walls will be designed as acoustic walls by including sound absorptive batt insulation. The walls will be constructed from floor to underside of slab above.

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7 FIRE SUPPRESSION

The existing Radiation Therapy Suite is served by a wet‐pipe fire suppression system. The existing sprinkler heads are pendant heads are exposed beneath the ceiling. The existing fire main is located in the corridor north of the Radiation Therapy Suite and a branch sprinkler main extends throughout the space.

Spaces indicated to be “refreshed” on the 15% Concept Level plans will have their sprinkler heads left in place. Heads are not expected to be replaced in those areas.

Spaces indicated to be “renovated” on the 15% Concept level plans will receive new sprinkler heads based on the function and new ceiling grid.

The new addition will receive an extension of the existing sprinkler system and will receive new sprinkler heads coordinated with the new ceiling grid.

All sprinkler heads as part of this renovation will be quick‐response heads in accordance with the VA Fire

Protection Design Manual.

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8 PLUMBING

No plumbing is required as part of this renovation based on comments and discussions with the VA.

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9 MECHANICAL

The existing Radiation Therapy suite is served by a mix of single duct variable air volume (VAV) boxes and fan coil units. Where air change requirements are not necessary, VAV boxes supply diffusers in the space and are controlled by a wall‐mounted thermostat. Spaces where air changes are required, the space air change rate is met by a ceiling‐mounted fan coil unit. Supply air from the main air handling unit system connects to the return air connection to provide ventilation to the space.

The existing air handling unit, located in the penthouse is served by a chilled water cooling coil and a steam heating coil and steam humidifier. The unit produces almost 2900 CFM of air for the Radiation

Therapy Suite at approximately 40% Outside Air (1105 CFM of OA).

As part of this renovation and expansion project, a new addition will be created in the courtyard and will contain four (4) new offices, a new dosimetry room and new clean utility closet. The mechanical team proposes a new packaged rooftop unit on the roof of the new addition to condition the new addition, as the existing air handling unit is not currently capable of providing the additional air required to meet the loads of the new space.

The new unit will be located on the roof and will duct down to new hot water VAV boxes to serve each of the spaces. The existing hot water heating system will be rebalanced to meet the new demand of the new AHU and VAV boxes. The existing pumps and heating converters will be adjusted to meet the new demand.

The new unit will serve both the addition and the existing spaces.

Ductwork will be galvanized sheet metal with fiberglass insulation. New heating water piping will be

Type L copper with 1‐inch insulation.

Spaces labeled to be “refreshed” on the 15% Concept Level plans will receive new air devices coordinated with the ceiling grid. Insulated flexible ductwork will be used to relocate the air devices, if necessary, to fit within the grid.

Spaces labeled to be “refurbished” or renovated on the 15% Concept level plans will be evaluated based on their existing air distribution system. If the existing system (Fan coil and/or VAV box) is capable of producing the require airflow, the existing system will be utilized to meet the new requirements of the space. If the existing system is incapable of meeting the required airflow, a new VAV and/or fan coil unit will be installed to the meet the load/air change/outdoor air change requirements of the space.

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10 ELECTRICAL

The existing Radiation Therapy suite is served by several existing panelboards, including Panel LPC‐B

(480Y/277V, 100A, Eaton PRL3a) and Panel RPC‐B (208Y/120V, 100A, Square D NQOD). These panelboards are in fair condition. New updated typewritten panel schedules will be provided for these existing panels once demolition is complete. New equipment and branch circuit loads under the renovation are intended to be fed from panel CBDPH from a new panel LPC‐B1 (480Y/277V, 400A), which will feed a new 45kVa ceiling suspended transformer RPC‐B2 XFMR and new panel RPC‐B2

(208Y/120V, 150A).

The existing lighting in the space is a combination of 2x2 LED troffers and recessed downlights. Egress lighting and exit signs are connected to existing Panel EDP. Exit signs are stainless steel with red lettering.

WIRING CONFIGURATIONS AND METHODS

In general, the basis of design for all building feeder and branch circuit wiring shall be installed in metal non‐flexible raceway systems with copper wiring within, excluding lighting fixture whips and connection to vibrating equipment. All branch circuit wiring shall be installed overhead with specific applications permitted for in‐slab installation, (i.e., floor boxes). All fittings shall be compression type; set screw fittings are not acceptable.

Type MC cable is not acceptable for use.

MISCELLANEOUS BRANCH POWER REQUIREMENTS

Receptacles ‐ Layouts will be provided which will comply with the VA Radiation Therapy Service Design Guide, and NFPA‐70 as well as meet the needs of all end‐user requirements. Normal and emergency power will supply branch circuits throughout the facility where required. Receptacle devices will be ivory for normal, red for emergency, 20 amp. Lighting control devices will be ivory for normal and red for critical. Each wiring device (light switches and receptacles) will have stainless steel engraved cover plates (via laser etching) to indicate the circuit and panel from which it is served. Power will be provided to pre‐wired patient headwall units and equipment booms. Surge suppression devices will be provided for sensitive electronic equipment cabinets (i.e., nurse call, fire alarm, etc.). Receptacles shall be mounted with ground pin in the up position; horizontally oriented receptacles shall be installed with the ground pin facing left.

Occupancy control for receptacles will not be provided, as the suite provides direct patient care.

Branch circuiting for receptacles shall comply with the more stringent requirements of either NFPA 70 (National Electrical Code) or VA PG 18‐10. No more than six receptacles shall be installed on a single branch circuit for general use. Where portable equipment is used, which requires special electrical considerations; additional receptacles distinctively marked for specific equipment use shall be provided and connected to critical branch power.

Branch circuits for normal and emergency power will originate from panelboards located within the floor in which the circuits reside, and listed above. Life Safety and Equipment branch circuits may

100% Bid Documents 28 VA Boston Jamaica Plains ‐ 523‐417 originate from panelboards located above or below the floor in which the circuit resides, but for this project, circuits will originate from panelboards within the area of work. Egress lighting loads will be connected to circuits made available by demolition of existing egress lighting.

Waiting areas shall have safety type tamper resistant devices and covers. Wet or damp areas will have ground fault protection type devices. Devices subject to intrusion of water or where located on the exterior of the building will have weatherproof "in use" covers, and shall be listed as weather resistant devices.

Direct connections to equipment will be provided when specifically required by the manufacturer.

Flexible connections will be provided for rotation or vibrating equipment.

Feeders and branch circuits shall be sized so that branch circuit voltage drop is limited to 3% and feeder circuit voltage drop is limited to 2% at full load. All 120V circuits shall be supplied with dedicated neutrals. Multi‐wire shared neutral conductor size for 20A circuits of wired modular furniture shall be minimum #10 AWG.

EQUIPMENT REQUIREMENTS

Fusible and non‐fusible safety switches shall be heavy duty type.

LIGHTING

Lighting shall be provided throughout the facility in all spaces occupied by people, machinery, or equipment. General area lighting will be designed with LED sources. General area lighting will operate at 277 volts. Areas requiring varying light levels will be provided with dimmed LED fixtures with electronic low voltage dimmers operating at 277 or 120 volts. Luminaires will have a CCT of 4000 degrees Kelvin and a minimum CRI of 80.

Where specifically required due to the function of the space, dimmable LED light fixtures may be provided. LED under cabinet and workstation task lighting with local on/off control will be provided at all work areas. Exam/ambient/reading type fixtures will be provided in ICU rooms

Overall, the building lighting design shall be based on a maximum of 1.05 watts per square foot over the entire building’s square footage to comply with the International Energy Conservation Code. To achieve this level of efficiency, extensive use of LED lighting will be required.

Lighting will be designed in accordance with the VA’s Lighting Design Manual, and will achieve the minimum lighting levels listed therein.

LIGHTING CONTROLS

A distributed relay based lighting control system (similar to nLight by Acuity Brands) will be provided to reduce energy usage through the use of occupancy, vacancy, dimming, daylighting and time scheduled controls.

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Local switching of all common staff work areas shall be via occupancy sensor controls with on/off override switches.

Provide occupancy/vacancy sensors with Manual‐ON functionality in all spaces except toilet rooms, storage rooms or other applications where hands‐free operation is desirable and Automatic‐ON occupancy sensors are more appropriate. Provide Manual‐ON occupancy/vacancy sensors for any enclosed office, conference room, meeting room, open plan system and training room. For spaces with multiple occupants, or where line‐of‐sight may be obscured, provide ceiling‐ or corner‐mounted sensors and Manual‐ON switches.

Provide full range dimming controls in all spaces except toilet rooms, storage rooms or applications where variable dimming is used. Nurse stations and exam rooms will have dimming controls, but no automatic shutoff. Patient corridors shall be provided with time clock schedule to dim lighting at night.

Selected interior lighting in public areas where natural lighting is available will be automatically controlled on/off and dimmed in response to available ambient light. Light fixtures within 15’ of windows shall be controlled separately from fixtures outside of daylit zones. Light fixtures closest to the daylight aperture shall be controlled separately from fixtures farther from the daylight aperture, within the daylight zone.

Daytime set points for total ambient illumination (combined daylight and electric light) level that initiate dimming shall be programmed to be not less than 125% of the nighttime maintained designed illumination levels.

Provide smooth and continuous daylight dimming. Daylighting control system may be designed to turn off electric lighting when daylight is at or above required lighting levels, only if system functions to turn lamps back on at dimmed level, rather than turning full‐on prior to dimming.

SPECIAL SYSTEMS

Grounding – A building‐wide grounding system will be provided to assure that all equipment is properly grounded in accordance with the NEC and other applicable codes, as well as to limit the possibility of potential‐differences between systems. A copper grounding conductor shall be provided in all feeder and branch circuits, to form a complete building wide grounding system.

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11 COMMUNICATION

TELEPHONE AND DATA SYSTEMS

New network outlets, access control, and nurse call device locations will be designed based on space layout, furniture location, VA design standards and specific user requirements to be coordinated as part of the design development user group meeting.

New network, and access control horizontal cables will be Cat6 UTP. New nurse call cabling will be per manufacturers requirements of existing nurse call system. New cabling will be routed overhead by use of new cable tray and J‐hook systems and terminated in the existing data closet. All phones in the building will be Voice over IP (VoIP). The VAMC will provide the wireless access point layout, but locations and cabling will be shown on upcoming submission drawings.

NURSE CALL AND CODE BLUE SYSTEMS

The existing nurse call and code system will be extended to serve the renovated space.

100% Bid Documents 32 VA Boston Jamaica Plains ‐ 523‐417

100% Bid Documents 33 VA Boston Jamaica Plains ‐ 523‐417

12 ELECTRONIC SAFETY AND SECURITY

This assessment methodology utilizes sections 3 thru 10 of the VA Physical Security and Resiliency Design Manual, dated October 2020, Rev 2 (PSRDM).

CHAPTER 3 – SITE CONSIDERATIONS

Scope

This project will be classified as a Mission‐Critical project for PSRDM purposes.

CPTED

1. Natural Surveillance

The project site is enclosed within a larger campus and the possibility of good natural surveillance from the neighboring buildings and roadways is very good. The project site does rest in at a lower grade from the road, it is surrounded on most sides by Building 1, with its may windows.

2. Natural Access Control

There will be no public entrances to this facility, so access control is strong.

3. Natural Territorial Reinforcement

There is no vehicle access up to this building. However, there is an inviting, grand stairway leading down to it. Since it does not lead to public entrance, it is recommended that signage be placed to indicate that it is for authorized personnel only.

4. Target Hardening

This is not an issue for this project.

Standoff Distance

This building addition does not violate the 50’ standoff requirement, as measured to the nearest curb line.

Perimeter Barrier

This building expansion does not affect and is not affected by the campus perimeter.

Vehicle and Pedestrian Screening

These requirements are not within the scope of this design project.

100% Bid Documents 34 VA Boston Jamaica Plains ‐ 523‐417

Anti‐ram Rated Vehicle Barriers

Parking

Site Lighting

1. General requirements

Refer to VA Lighting Design Manual. Coordinate lighting and exterior security cameras to prevent video washout. Ensure that pathways and signage have proper illumination.

2. Locations

Refer to VA Lighting Design Manual.

Landscaping

Signage

Provide signage for wayfinding. Do not provide signage that identifies sensitive areas (air intakes, fuel supply points, utility connections, etc.).

Chapter 4 ‐ Building Entrances and Exits

Public Entrances and Lobbies

There are no public entrances with lobbies included in this project.

Patient Drop‐offs

There is no patient drop‐off included in this project.

Building Exits and Life‐Safety

1. Site requirements

Means of egress paths must be unobstructed, accessible, and lead to a proper safe location.

2. Planning, Construction Details, and Materials

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PSRDM 2020, chapter 6 covers blast design requirements for building façades. JLPE will address these requirements, with some loading conditions to be provided to the structural engineer for design of some structural elements.

3. Security monitoring

Electronic security, PACS, IDS, and door hardware will be summarized elsewhere and will be in accordance with PSRDM appendices A1, A2, A3, and B. Refer to drawing SEC001 with this report.

Chapter 5 ‐ Functional Areas

High Risk Areas

High Risk areas are defined as “A location where a threat/hazard may occur or be introduced.” Many of the listed functional areas prohibit location near “high risk” areas. High risk areas include, but are not limited to, public entrances, mailrooms, loading docks, and emergency department.

Functional Areas

There are no functional areas listed in PSRDM chapter 5 within this project that have security requirements specific to that function.

Chapter 6 ‐ Building Envelope

Non‐Load Bearing Exterior Walls

The non‐load bearing exterior backup wall for this project will be a ductile steel stud wall system.

Design to mitigate blast loads is required.

Design Level Threat: W1 at 50’, but not greater than GP2. Effects of rebound are to be considered.

The anchorage and connection of walls into the supporting structure must also be designed to transfer the calculated blast loads. Flexural elements and their connections must be designed and detailed such that no brittle failure mode limits the capacity of the section.

Acceptable performance is defined by the blast load deformation limits in Table 6‐2, per Blast Protection of Buildings, ASCE/SEI 59‐11, or latest edition.

Blast Load Deformation Limits: ‐ Moderate Damage Balanced Load Deformation Limits – Heavy Damage

1. Tributary Loads from Fenestration

Walls must be designed to accept a blast load equal to the maximum capacity of the weakest lite of supported glass (balanced design), but no less than the calculated blast loads (as limited by the GP values) while sustaining deformations no greater than the specified deformation limits.

100% Bid Documents 36 VA Boston Jamaica Plains ‐ 523‐417

2. Supporting Structure

Non‐load bearing exterior walls must span from slab to slab and must not be attached directly to gravity load bearing elements (such as columns and shear walls).

3. Existing Facilities

N/A

Fenestration and Doors

1. Façade Fenestration

Glass Performance level under chapter 6 loads: Glass may crack but must remain in the frame (GSA condition 2).

All glazing must be laminated annealed glass. For insulated units, the interior lite must be laminated.

Glass performance is to be evaluated using a failure probability of 500 breaks per 1000.

Glass must be restrained within the mullions/frames with a minimum 1/2” bite and a minimum 3/8” wide continuous bead of structural silicone adhesive attaching the inner lite of glass to the frame.

Mullions/frames must be aluminum or steel construction. The mullions/frames must be designed to accept a calculated blast load equal to the peak pressures and impulses applied over their tributary area calculated blast loading for the wall. The mullions/frames must also be designed to accept a blast load equal to strength of the weakest lite of supported glass (balanced load). The mullions/frames must sustain deformations no greater than the following.

Blast Load Deformation Limits – L/40 (end rotation = 3) Balanced Load Deformation Limits – L/8 (end rotation = 6 degrees)

Flexural elements and their connections must be designed and detailed such that no brittle failure mode limits the capacity of the section.

2. Existing facility fenestration

3. Doors

The operable portions of exterior swing doors must be laminated glass or heavy gauge metal (14‐ gauge minimum). Swinging doors must open towards the detonation. The stationary portions of all exterior swing doors must be designed using heavy duty frames and anchorages that are capable of

100% Bid Documents 37 VA Boston Jamaica Plains ‐ 523‐417 resisting the blast load specified for the walls. The frames must sustain deformations no greater than the following.

Blast Load Deformation Limits – L/20 (end rotation = 6) Balanced Load Deformation Limits – L/14 (end rotation = 8 degrees)

Sliding doors are explicitly allowed. However, clarification from the government on blast design is required.

4. Existing Facilities

Atria

1. Atria

2. Existing facility atria

Roofs

1. Roof structure

Secondary roof structure is to be designed to meet the loading and deformation requirements as defined for non‐load bearing walls.

2. Skylights

3. Existing facility roofs

Critical Equipment Protection

1. Penthouses and Screen Walls

The VA has stipulated that the roof top units to be installed in this project are not categorized as critical for this PSRDM section.

2. Intakes and exhausts Servicing Critical Equipment

100% Bid Documents 38 VA Boston Jamaica Plains ‐ 523‐417

There are no air intakes or exhaust openings that require attention under this section.

3. Existing Facilities

Calculation Methods

Chapter 7 ‐ Structural System

Refer to the Physical Security and Resilience Design Standard Data Definitions for applicable charge weights, available from VA CFM.

Criteria Life‐Safety Protected Mission Critical

Exterior Design Level Threat W1 W2

Standoff Distance 25’ 50’

Interior Design Level Threat W0 W1

Standoff Distance for interior Elements

12” above slab at center of each bay

12” above slab at center of each bay

Standoff Distance for Columns and Load‐bearing Walls

12” 12”

Structural elements that are to be designed for the interior design level threat are those within vulnerable interior spaces. This can include columns and slabs that are part of a building overhang or columns that are flush with the exterior façade of the building. This can also include columns and slabs within loading docks that separate this vulnerable space from adjacent occupied spaces.

Blast Resistance

1. Priority for Protection

Refer to Tables 3‐2 and 3‐3 in ASCE 59‐11 for ductility ratio and end rotation limits for superficial, moderate, and heavy damage.

Blast Response Limit Criteria Life‐Safety Protected Mission Critical

Primary Structure Moderate Damage Superficial Damage

Secondary Structure Heavy Damage Moderate Damage

Non‐structural elements critical for life‐safety and over‐head suspended equipment weighing more than 31 pounds shall be designed to resist the building base shear calculated for blast loading, in addition to environmental loads.

100% Bid Documents 39 VA Boston Jamaica Plains ‐ 523‐417

2. Vertical Structural Element Protection

Columns and load‐bearing walls are primary structure and must be designed to resist flexural and shear from blast loads.

3. Wall Protection

Non‐load bearing interior walls separating high risk interior spaces (loading docks, mailrooms, and main public lobbies) must be designed to resist the calculated blast loads for the required threat level (LSP or

MC).

4. Screen Walls and Penthouse Structure

Screen walls and penthouse walls enclosing critical equipment must meet the requirements for secondary structure under the specified exterior threat level blast loads.

5. Detailing of Hardened Elements

Design and detailing must prohibit non‐ductile failure modes in response to blast loading.

6. Existing Facility – Blast Protection

N/A

Design for Global Stability

The structural framing for this project will rely on the adjacent existing building for the lateral force resisting system. The addition will not provide a lateral force resisting system. The analysis will be based on the rigidity of a typical building of this height. PSRDM 7.3.3 advises that existing buildings do not need to be evaluated under 7.3, unless a seismic upgrade is being performed. Since the lateral system for this addition is an existing building and no seismic upgrade is being performed, the PSRDM

7.3.3 exception applies.

Prevention of Progressive Collapse

The height of this building (less than 3 stories tall) exempts it from the requirement to design to mitigate progressive collapse.

Anti‐ram Resistance

These requirements are not within the scope of this design project, as there is no public entrance.

Chapter 8 ‐ Utility and Building Services

These requirements are not within the scope of this design project. The project does not have distributed utilities within the project scope.

100% Bid Documents 40 VA Boston Jamaica Plains ‐ 523‐417

Chapter 9 ‐ Building Systems

1. Equipment Location:

Locate major mechanical equipment above the ground floor, above grade, and in an area not subject to flooding. As noted under Chapter 6, all equipment deemed by the VA to be mission‐ critical shall be enclosed in blast‐resistant walls or wall and roof.

2. Water Consumption:

N/A.

3. Emergency Connections:

N/A. It is assumed that emergency connections are provided elsewhere outside of this project.

Chapter 10 ‐ Security Systems

An electronic security system (ESS) is required for all categories of protection. Requirements are derived from VA Handbook 730 and the PSRDM appendices. Refer to drawings SEC001 with this report.

Coordination with Other Systems

ESS must be coordinated with other safety systems and telecommunications systems. Systems will be networked and compliant with Homeland Security Presidential Directive 12 (HSPD‐12), Presidential Policy Directive 21 (PPD‐21), and Federal Information Processing Standards 201 (FIPS‐201).

Electronic Security Systems

Refer to PSRDM appendices A, B, and C and to VHA 730 appendix B. Systems are to be fully commissioned. These requirements are reflected in drawings SEC001.

Physical Access Control System (PACS)

Refer to PSRDM appendices A and B and to VHA 730. These requirements are reflected in drawings

SEC001.

Intrusion Detection System (IDS)

Refer to PSRDM appendices A and B and to VHA 730. Interior sensors will include motion detection, door monitoring, and glass break detectors. There will be no exterior sensors. These requirements are reflected in drawings SEC001.

100% Bid Documents 41 VA Boston Jamaica Plains ‐ 523‐417

Security Surveillance Television (SSTV)

Refer to PSRDM appendix B and to VHA 730 for camera locations and field of interest. These requirements are reflected in drawings SEC001.

Features shall include:

Cameras must be color and auto‐day/night feature.

Cameras must be rated for continuous operation.

Cameras must have built‐in video motion detection.

Both interior and exterior cameras must be housed within a tamper‐proof camera enclosure.

Exterior camera enclosures must be rated to protect against weather elements.

Camera location must be coordinated to prevent obstruction of view from equipment, buildings, trees, etc.

Recording equipment may be DVR or NVR. Recording equipment must be able to generate CD for exporting specific recorded data.

Duress, Security Phones, and Intercom System (DSPI)

No separate duress systems are required or included in this project.

Public Address and Mass Notification System

The facility is to have a public address system per chapter 7 of the VA Telecommunications Design Manual (TDM). A mass notification system is not mandatory.

Security Control Center, Integrated Operations Center, Emergency Operations Center

Not required for this project.

Patient or Staff Annunciator/Locator (PAL)

Not required for this project.

Behavioral Health Area (Psychiatric or Mental Health Area)

Not required for this project.

Narcotics Storage Alerting and Signaling System

Not required for this project.

Detection and Screening Systems

Not required for this project.

100% Bid Documents 42 VA Boston Jamaica Plains ‐ 523‐417

100% Bid Documents 43 VA Boston Jamaica Plains ‐ 523‐417

13 FIRE DETECTION AND ALARM

The unit will be provided with a networked addressable voice evacuation fire alarm system installed in accordance with NFPA 72.