IFB Attachment 4 - Basis of Design Vol. 1.pdf

Bid Documents

Department of Veteran Affairs Women’s Health, 2nd Floor

Jesse Brown VA Medical Center Chicago, IL

Project Number: 537-327 May 9, 2025

TABLE OF CONTENTS

NARRATIVES

A. Architectural Narrative B. Structural Narrative C. Fire Protection Narrative D. Plumbing Narrative E. Mechanical Narrative F. Electrical Narrative G. Physical Security Narrative H. Environmental Narrative

APPENDIX

TAB A. Cost Estimate TAB B. Mechanical Calcs

And Equipment TAB C. Med Gas Calculations TAB D. Structural Calculations

(Basis of Design - Vol. 2 & Vol. 3)

NOTE: ALL SECTIONS MAY NOT BE APPLICABLE OR INCLUDED IN INTERIM SUBMITTALS

Women’s Health, 2nd Floor

Jesse Brown VA Medical Center Chicago, IL

Project Number: 537-327 May 9, 2025

A. Architectural Narrative

Women’s Health, 2nd Floor Jesse Brown VA Medical Center, Chicago, IL Project No.: 537-327

Page A - 1

A. Architecture

A. Summary of Design Goals and Objectives

This work will include but not be limited to the design of a now approximately 16,500 SF (See F. below) addition at the 2nd Floor (1st Floor roof) level of Building 30. Additional areas include a new exit stair added on the outside of the existing building, a mechanical penthouse and a rooftop chiller. These will be added at the 2nd floor roof level. The project will be required to facilitate both vertical and horizontal adjacencies, to configure the space for compliance with VA Design Manuals, provide a dedicated private entrance to the clinic with access control and to provide an efficient work flow as described in the Scope of Services.

Building services, structure and building envelope will be extended to facilitate the needs of all required utilities and systems (HVAC, Water, Sewer, Electrical, Data, and Medical Gases). The architectural design and equipment layout will meet the current VA requirements for a facility of this type.

Review of VA provided Statement of Conditions drawings for the area of work, and issues to address/remedy deficiencies noted, are outlined in paragraph E below.

B. Existing Conditions:

The project area/site is directly above a fully fitted, functioning clinic space on the 1st Floor of Building 30, which will need to remain operational during construction. Some areas will need to closed during phasing periods to allow for routing of utilities to the new space above.

C. Scope of Demolition:

Demolition will generally include all work that needs to be reconfigured.

This includes demolition of existing roofing, new exterior wall openings to provide access to the additional space, as well as associated Structural - Fire Protection – Plumbing – Mechanical – Electrical items that require alteration, relocation or replacement.

D. Scope of New Work:

A new building shell and interior buildout will be constructed at the Second Floor level. Interior spaces generally consist of drywall assemblies, finished with paints. A combination of ACT and gypsum

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Page A - 2 ceilings will be incorporated in the work. Flooring will be a combination of finish products including ceramic/porcelain tile and resilient tile.

Adherence to VA guidelines will be observed.

Primary structural, electrical and mechanical systems will be sized accordingly. Control of dust, noise, and other construction materials & activities will be required.

E. Phasing

The project generally should be considered as a multi-phase project in that it will directly affect areas on the first floor, which will need to be coordinated with periods of time the first floor areas can be closed.

F. Summary of Significant Design Issues and Existing Deficiencies

One of the most significant issues for the project will be related to maintaining 24/7 operations of a fully operational hospital during construction. Patients, visitors and staff will need to be protected in the vicinity of both interior and exterior work.

The majority of the project lies outside of the limits of currently occupied space. Consequently, the current Statement of Conditions have been reviewed for potential concern and impact on this project.

Available Space in the Proposed Project Area - The Scope of Work project area requested in the original program was 28,000 SF. Over many months of discussion regarding scope and budget, this has been reduced to approximately 16,500 SF for the second floor space as well as a new exterior stairwell and a mechanical penthouse. The current plan houses the following clinic spaces:

o Reception o Waiting o 4 Shared Medical Appointment Rooms / Group Rooms o 12 Exam Rooms o 4 Mental Health Consultation / Exam Rooms o 4 Procedure Rooms with Medical Gases (Oxygen, Vacuum and

Air) with Patient Toilet o 2 Physical Therapy Rooms o 3 Patient Toilets (one is Bariatric) in Exam Room Corridors o 2 Family Toilets at Waiting o 1 Lactation Room o 2 Staff Toilets

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Page A - 3 o 2 Shared Documentation Work Area PACT spaces o 4 Private Offices o 1 Residents Office o 1 Conference Room o 1 Staff Lounge o 1 Locker Room o 2 Clean Linen o 1 Clean Utility o 3 Soiled Utility o 1 Medical Equipment Storage o 1 HAC Space o Various Storage Spaces o Electrical and Data Space

G. Construction Cost Analysis

The original project “Construction Cost” budget was $13,500,000.00, with expected construction to start in FY2023. Many conversations over the years have resulted in an updated “Project Cost” budget (including A/E fee) of $16,000,000.00. The current construction cost estimate is $16,071,714.00 excluding A/E fees. The A/E fee including the recent Medical Gas Modification is currently $1,431,428.26. The total cost estimate including A\E fee is $17,503,142.26.

H. Codes and Standards:

1. VA Design Guides-Technical Information Library

2. Architectural Barriers Act Accessibility Standards

3. VA Barrier Free Accessibility Standards

4. International Building Code – Latest Edition

5. NFPA 101 – Latest Edition

6. NFPA 99 – Latest Edition

7. NFPA 13 – Latest Edition

8. The National Energy Conservation Policy Act

9. The Pollution Prevention Act of 1990

I. Project Schedule

Bid Documents due May 9, 2025

Women’s Health, 2nd Floor

Jesse Brown VA Medical Center Chicago, IL

Project Number: 537-327

B. Structural Narrative

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IV. Structural

A. Goals and Needs:

This project provides for the structural design of a new single story, approximately 16,500 Women’s Clinic Second Floor Addition at the Jesse Brown VA Medical Center. The addition will be designed to meet all applicable building codes as well as the VA Physical Security Design and Resiliency Manual.

B. Existing Conditions:

a. The existing roof will become the first floor. It is constructed of 2” composite metal deck with 3.25” light weight concrete fill. The metal deck is supported by wide flange composite beams and girders with headed studs. The existing beams and girders are supported by wide flange columns. All beams are connected to existing columns via moment connections per the original structural drawings. The ground floor level is also constructed in the same manner as the existing roof structure. The wide flange floor framing is supported by wide flange columns bearing on 3’-0” diameter caissons with varying base bell diameters.

b. The existing lateral system for the building is constructed of steel moment frames. Due to the age of the building and the building being located in a relatively low seismic region it is assumed these moment frames were not specifically detailed for seismic requirements.

c. The existing façade appears to be comprised of limestone panels backed by unreinforced masonry.

d. Portions of the floor plan can only receive a roof structure and the other portion receiving a roof as a future floor structure based on the Feasibility Study and as shown on the drawings. It should be noted that with the future structure it would not have connectivity to the main building without a bridge type structure or having to go down a level and then come back up.

C. Scope of Demolition:

The scope of structural demolition will be partial removal of existing wall panels and concrete curb demolition at the roof. Based on the 2nd floor Assessment report at a minimum existing concrete encasement of select columns will need to be removed.

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D. Scope of New Work:

1. Roof (Future Floor):

a. In the area bound by Column Lines N to C and 10 to 27 the second roof addition structure will be constructed of 2” deep composite metal deck with 3.25” lightweight concrete. The deck will be supported by composite wide flange beams and girders with headed studs.

2. Roof (No Future Floor):

a. In the area bound by Column Lines N to U and 7 to 30, the second roof addition structure will be constructed of 1.5” deep metal deck.

The deck will be supported by open web steel joists and wide flange beams and girders.

3. Vertical Structure

a. The horizontal roof/future floor structure will be supported by wide flange steel columns. Exterior walls will be non-load bearing cold formed metal stud construction.

4. Lateral System:

a. The lateral system will be comprised of steel moment frames not specifically detailed for seismic resistance.

E. Potential Owner Furnished and Installed Items:

1. None anticipated

F. Items Needed From VA

1. None at this time.

G. Codes and Standards:

As Listed in Attachment 1 Design Criteria

H. Applicable Specifications

a. 01 45 35 Special Inspections

b. 03 30 00 Cast-In Place Concrete

c. 05 12 00 Structural Steel Framing

d. 05 21 00 Steel Joists

e. 05 31 00 Steel Decking

f. 05 36 00 Composite Metal Decking

I. Attachments

1. Attachment 1: Design Criteria

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2. Attachment 2: Structural Calculations

Attachment No. 1 Design Criteria

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1. Codes & Standards:

a. International Building Code (IBC) 2018 Edition as modified by:

i. VA Seismic Design Requirements, H-18-8, November 1, 2019 updated May 1, 2020.

b. ANSI/ASCE 7-16, Minimum Design Loads for Buildings and Other

Structures

c. VA Physical Security and Resiliency Design Manual, October 1, 2020

d. ACI 318-14 Building Code Requirements for Structural Concrete

e. AISC 360-16, Specification for Steel Buildings

2. Design Loads

a. Dead Loads

i. Roof, Future Floor and Existing Floor: Self weight of building materials

b. Collateral Loads

i. Roof, Future Floor and Existing Floor: 10 psf

c. Live Loads

i. Roof: 20 psf unreducible

ii. Existing Floor/Future Floor: 100 psf

iii. Walls: 5 psf minimum

d. Snow Loads

i. Ground Snow Load = 25 psf

ii. Uniform Design Roof Snow Load = 25.2 psf

e. Wind loads

i. Risk Category: IV

ii. Ultimate Wind Speed: V=119 mph

iii. Wind Importance Factor: IW=1.0

iv. Wind Exposure: C

v. Internal Pressure Coefficient:

1. + 0.18 “Enclosed”

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f. Seismic Loads

i. Risk Category: IV

ii. Seismic Importance Factor: IE=1.5

iii. Mapped Spectral Response Accelerations:

1. SS=.118

2. S1=.063

iv. Site Class: D

v. Spectral Response Coefficients:

1. SDS=0.126

2. SD1=0.101

vi. Seismic Design Category: C

vii. Basic Seismic-Force-Resisting System:

1. Structural Steel Systems Not Specifically Detailed for

Seismic Resistance.

viii. Response Modification Factor(s): R =3

ix. Analysis Procedure Used: Equivalent Lateral Force Procedure

x. Seismic Response Coefficient(s): CS =0.063

3. Serviceability

a. Drift & Deflection Criteria: The criteria used shall be compatible with finish materials for the building that are connected to the building structure.

i. Lateral Drift: H/400 (Based on 10 year wind), .01xH for seismic loading

ii. Vertical Deflection

1. Roof (Future Floor):

a. Live Load: L/360

b. Dead + Live Load: L/240

2. Roof (No Future Floor):

a. Live Load: L/240

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b. Dead + Live Load: L/180

3. Blast rotations as prescribed by the Physical Security

Design Manual.

4. L/600 for elements supporting brittle finishes such as brick and CMU

5. Horizontal Deflection: L/240 < 1.5” (Based on 10 year wind), L/400 for elements supporting brittle finishes such as brick and CMU

Women’s Health, 2nd Floor

Jesse Brown VA Medical Center Chicago, IL

Project Number: 537-327

C. Fire Protection Narrative

Project No.: 537-327

Section C - 1

C. Fire Protection

A. Applicable Codes and Standards:

The codes referred to in the fire protection review and design will include the following:

1. International Building Code, 2018

2. International Existing Building Code, 2018

3. NFPA 13, Installation of Sprinkler Systems, 2013 Edition

4. NFPA 72, National Fire Alarm and Signaling Code, 2013 Edition

5. NFPA 101, Life Safety Code, 2015 Edition

6. Department of Veterans Affairs, Fire Protection Design Manual

B. Design Requirements:

1. The Jesse Brown VA Medical Center in Chicago, IL will be adding a second floor to building 30; the addition will be approximately 28,000 ft2.

2. The fire protection features of the facility including suppression, fire alarm and related components shall be a delegated design. The design shall be provided by a registered fire protection engineer or a level 3 or higher NICET sprinkler and fire alarm technician.

3. The expansion will get a wet pipe sprinkler system and an addressable fire alarm system that will be designed in accordance with the existing systems in the building.

C. Existing Conditions:

1. The existing building is currently protected by an automatic wet pipe sprinkler system.

2. The existing fire alarm control panel is manufactured by Siemens and will be used for the connection of new devices.

D. Scope of Demolition:

1. Since this is a new building addition, no demolition work for the sprinkler system and fire alarm system is required.

E. Scope of New Work:

1. The contractor will provide a new wet pipe sprinkler layout for the building addition. The new layout shall provide an operable

Project No.: 537-327

Section C - 2 sprinkler system that, within the scope of work, is in full compliance with NFPA 13.

2. The Fire Alarm system within the existing building will be modified to include the new floor plan layout of the building addition. The fire alarm strobe circuits will be modified to meet NFPA 72 coverage criteria. New speakers will be provided for proper coverage for the building addition.

3. Smoke detectors, heat detectors and duct detectors will be provided as required by the IBC and NFPA 72.

D. Technical Analysis:

1. The following is the basis of design:

A. Provide an automatic wet pipe sprinkler system for the addition area. The requirements listed below will be incorporated into the design for all areas.

i. Sprinkler protection for the entire area shall be installed to the standards of NFPA 13 for light hazard with some areas of ordinary hazard group 1 and ordinary hazard group 2.

ii. Coverage per sprinkler head;

• Light Hazard - 225 ft2 maximum

• Ordinary Hazard, group 1 & 2 - 130 ft2 maximum

iii. Design density;

• Light Hazard is 0.10 gpm/ft2 over the most hydraulically remote 1,500 ft2.

• Ordinary Hazard Group 1 is 0.15 gpm/ft2 over the most hydraulically remote 1,500 ft2.

• Ordinary Hazard Group 2 is 0.20 gpm/ ft2 over the most hydraulically remote 1,500 ft2.

iv. Sprinklers shall be uniformly spaced on branch lines. Maximum spacing per sprinkler head shall not exceed limits specified in NFPA 13.

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Section C - 3

v. Pendent sprinkler heads shall be installed on a return bend. All pendent sprinkler heads shall be coordinated with other ceiling equipment and centered in the ceiling tile.

B. Provide fire alarm coverage to comply with fire protection and fire alarm systems specifications and provide complete coverage in the building addition.

C. Notification appliance circuits will be Class B, signaling line circuits will be Class B, horn circuits will be Class B, and Initiation Device Circuits will be Class B. All circuits will be run in conduit.

D. Evacuation alarm activation will be via manual pull stations at building exits and smoke detectors. Manual pull stations will be flush mounted in areas with finished walls and surface mounted in other areas.

E. Speakers, speaker/strobes, and strobes will be located throughout the building for occupant notification. Strobes will be marked with the word “FIRE”.

F. Smoke detectors will be provided as required by NFPA 72.

Detection will also report to the existing fire alarm control panel as required by NFPA 72.

2. Interior piping and components:

A. Sprinkler piping shall be steel and in accordance with

NFPA 13.

B. Sprinkler heads shall be quick response standard coverage with an ordinary temperature rating installed in accordance with manufacturer’s listing.

C. All sprinkler piping shall be supported from the building structure in accordance with NFPA 13.

Women’s Health, 2nd Floor

Jesse Brown VA Medical Center Chicago, IL

Project Number: 537-327

D. Plumbing Narrative

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D. Plumbing

A. Design criteria:

1. Plumbing system shall be designed for Women’s Health-Primary

Care facility expansion to Building 30 under this contract.

2. Domestic cold-water supply shall be sized to maintain a maximum velocity of six (6) feet per second at design flow conditions.

Domestic cold-water will be circulated with a domestic cold-water return.

3. Domestic hot-water supply and return shall be sized to maintain a maximum velocity of five (5) feet per second at design flow conditions. Domestic hot-water will be circulated with a domestic hot water return.

4. A minimum of 35 psi shall be provided at all plumbing fixtures.

5. All plumbing fixtures and faucets shall be water saving type.

6. Hot water shall be provided to plumbing fixtures requiring hot water. Hot water temperatures will be regulated by ASSE listed valves to eliminate scalding hazards.

7. All domestic hot-water supply, cold water supply, hot water return, and cold-water return piping shall be insulated.

8. Sanitary sewer drainage and vent system shall be designed to maintain adequate velocity for cleansing and air circulation.

9. Storm drainage shall be designed to maintain adequate velocity for cleansing and air circulation. All storm drainage piping shall be insulated.

10. Provide Professional Design for Medical Gases (Medical Air, Vacuum, and Oxygen), and Construction Phase Administration services for the four (4) procedure rooms.

B. Design Documents and Other Deliverables As required by the contract the following products will be completed and delivered:

1. Plumbing narrative. Plumbing analysis to determine number of fixture units, cold and hot-water capacity requirements, and equipment or capacities of miscellaneous and special systems.

2. Fixture determination listing quantity and type of fixtures for both men’s and women’s toilets, and other fixtures such as drinking water fountains, service sinks, and sinks, etc.

3. Piping types and location (concealed or exposed), together with material proposed and insulation requirements.

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4. Medical Gas Systems (Medical Air, Vacuum, and Oxygen) will be provided in the four (4) procedures rooms as required by RFP #103. A new area alarm panel will be provided to monitor the piped Medical Gas Systems serving the four (4) procedure rooms.

C. Applicable codes and standards:

As a minimum, the plumbing system will be designed to meet the requirements of the following codes and standards:

1. Department of Veterans Affairs Plumbing Design Manual.

2. Guideline for Design and Construction of Health Care Facilities.

3. VHA Directive 1061

4. NFPA 101, Life Safety Code Handbook.

5. NEC (NFPA 70).

6. NESC (ANSI C2).

7. OSHA Manual.

8. Barrier Free Design Guide.

9. American Society for Testing Materials (ASTM).

10. American National Standards Institute (ANSI).

11. American Society of Plumbing Engineers (ASPE).

12. American Water Works Association (AWWA).

13. Architectural Barriers Act Accessibility Standards (ABAAS).

14. American with Disabilities Act (ADA).

15. Underwriters’ Laboratories (UL).

16. Local and State Codes.

17. State of Illinois Plumbing Code.

18. State of Illinois Building Mechanical Code.

19. Local and State Codes.

20. NFPA 99, Health Care Facilities Code.

D. System overview:

1. Sanitary sewer drainage and vent system

a. Plumbing fixtures above grade will be drained by gravity through Sanitary Sewer drains and routed to the sanitary sewer serving the existing first-floor fixtures.

2. Plumbing fixtures

a. All plumbing fixtures shall be low flow type.

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b. Sink fixtures shall be commercial quality type, suitable for medical use and with chromium plated trim and individual stops.

c. Appropriate barrier free fixtures shall be provided in accordance with ADA and ABA requirements, for handicapped use.

3. Medical Gas inlets and outlets must match the specific requirements of the existing inlets and outlets and be gas specific.

E. Plumbing system description:

1. Domestic water

a. The system will be designed to prevent water hammer conditions by providing shock arrestors for quick closing valves. Isolation valves will be provided for each fixture per the VA Plumbing Design Manual.

b. Domestic hot and cold-water temperature will be maintained on long runs of distribution of piping by use of hot and cold-water return circulation system.

c. Domestic hot-water piping shall be provided with Mineral fiber insulation and a fire-retardant jacket.

d. Domestic cold-water piping shall be provided with Flexible Elastomeric or mineral fiber insulation and a fire-retardant jacket.

e. Domestic hot-water supply, domestic cold-water supply, and domestic hot water return will be an extension of the existing building systems. From review of as-built plans, existing domestic water supply and return systems are located in the pipe basement of Building 30 and serve fixture on the ground floor from below. In order to provide services to the new addition, these services will need to be tapped in the basement and new risers and mains routed to the new space.

2. Sanitary, drainage, and vent system

a. Plumbing fixtures above grade will be drained by gravity to the sanitary sewer stack. Consideration will be given to providing appropriate sizing criteria to meet occupancy conditions.

b. Adequate gradients will be maintained to insure a self-cleansing velocity. Cleanouts will be provided per code.

c. The sanitary drainage system will be pitched to maintain flow at a minimum velocity of 2 fps.

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1. Piping 2 inches and smaller shall be pitched at 1/4 inch per foot.

2. Piping 3 inches and larger shall be pitched at 1/8 inch per foot.

d. Each trap and trapped fixture shall be vented so that the water seal of the trap shall be subject to maximum pneumatic pressure deferential of inch water column.

e. Each floor drain shall be provided with chemically resistant elastomer which forms a barrier to minimize the evaporation of the trap seal of a floor drain and will open to allow drainage and close when there is no flow to block any odor.

f. Sanitary drainage serving the addition will be an extension of the existing system. In some cases, walls and ceilings of the ground floor will need to be removed to connect new drains to existing drains in the pipe basement.

g. Storm drainage are providing appropriate size criteria to meet the 100-year storm surge. Storm drainage piping will be extended down and connected to the existing storm drainage systems in the ground floor ceiling. The emergency storm piping will terminate through the east wall of the second floors exterior wall.

3. Plumbing fixtures

a. Fixtures will be provided with chromium-plated brass trim and individual stop valves.

b. Water closets shall be wall hung, back outlet, vitreous china with 1.28 gph sensor operated flush valve.

c. Lavatories shall be wall hung, vitreous china with sensor operated hands free infrared, battery powered, gooseneck faucet. All lavatories will have an ASSE 1070 tempering valve.

d. Sinks in exam room shall be under counter mounted, corrosion resistant stainless steel, hands free infrared, sensor operated, gooseneck faucet. All sinks will have an ASSE 1070 tempering valve.

4. Medical Gas Inlets and outlets will be wall mounted.

5. Materials

a. Interior – Sanitary sewer, vent, and storm drainage aboveground: ASTM A 74, CISPI 301, or ASTM A888 Service weight hubless cast iron soil pipe with heavy duty

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Page D - 5 four band no-hub couplings or threaded cast iron drainage fittings.

b. Interior/Exterior – Sanitary sewer and storm drainage buried in or in contact with earth: ASTM A 74, CISPI 301, or ASTM A888 Service weight cast iron soil pipe bell and spigot with cast iron fittings.

c. Interior – Domestic Water, aboveground: Seamless hard copper water tubing Type L or K, cast bronze ANSI B16.26 or wrought copper ASME B16.22 fittings.

d. Interior/Exterior – Domestic Water, buried in or in contact with earth: ASTM B88, Type K, seamless, annealed copper tubing with ANSI B16.18 and B16.22 wrought copper or bronze castings AWS A5.8, Classification BCuP brazing alloys.

e. Medical Gas Piping for medical air and oxygen shall be hard-drawn seamless copper in accordance with ASTM B819, Medical Gas Tube, Type “L”.

f. Medical Gas piping for surgical vacuum shall be hard-drawn seamless copper tube in accordance with ASTM B88, copper tube (Type K, Type L, or Type M) or ASTM B280 Copper ACR tube, or ASTM B819, Copper medical gas tubing (Type K or Type L).

F. VHA Directive 1061 compliance Legionella:

1. It is assumed that a Facility Water Safety Committee has been formed and has prepared a HCA LD Prevention Plan. As an integral part of the HCA LD Prevention Plan, as-built domestic water system mapping should be provided for the entire facility.

This project will provide as-built compliant documentation for the defined SOW area only.

2. In order to best comply with the 2014 Rev 2018 VA Plumbing Design Manual for Legionella mitigation and VHA Directive 1061 for the domestic hot and cold-water systems within the area of work the following will be included in the design:

a. Domestic Hot Water

i. Piping will be routed to minimize fixture run-out lengths except for plumbing fixture branches located beyond the area of work that will require re-connection to the new main.

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ii. The hot water will be circulated and connect to the existing hot water circulation system

iii. Temperature monitoring device ports will be located at the end of the hot water circulation loop.

b. Domestic Cold Water

i. Piping will be routed to minimize fixture run-out lengths except for plumbing fixture branches located beyond the area of work that will require re-connection to the new main.

c. This project will include thermal balancing /scald guard fixtures in the project area.

3. The following items required by 2014 Rev 2018 VA Plumbing Design Manual for Legionella mitigation and VHA Directive 1061 for the domestic hot and cold-water systems are not included in the design:

a. Existing water quality is unknown, and no treatment of water is provided within this SOW.

b. This project does not provide compliant mapping for the balance of the facility. Complete facility mapping is assumed to be accomplished under separate contract.

c. This project does not provide continuous water quality monitoring.

d. Hot water recirculation will be properly sized for the lines replaced and the known new or existing fixtures that will be served. This project does not address complete rebalancing of return system nor does it ensure that proper flow from the installed piping can be provided by the existing recirculation system.

e. This project does not address raising the hot water distribution temperature in the facility. Thermal balancing/scald guard fixtures compliant with thermal eradication and elevated distribution temperatures for the existing facility will be accomplished under a separate contract. All fixtures under this project will be able to support thermal eradication and elevated distribution temperatures.

f. This project does not provide for cold water circulation for the facility.

Women’s Health, 2nd Floor

Jesse Brown VA Medical Center Chicago, IL

Project Number: 537-327

E. Mechanical Narrative

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E. Mechanical A. Design Requirements:

1. The scope of this project is to provide HVAC for a new addition to building 30 at the Jesse Brown VA Medical Center, Chicago IL. The primary purpose of the addition is to create space for a new women’s clinic.

2. The design will require connection to existing systems as follows:

a. Steam and condensate will be from the existing steam plant. The tie-in will be in the existing pipe basement under building 30.

b. Backup chilled water connection to the existing chilled water plant.

The tie-in will be in the existing pipe basement under building 30 and terminate in the new mechanical penthouse.

3. A mechanical penthouse will be created to house all new mechanical equipment serving the expansion and will be centrally located to limit air duct sizes routed through the addition ceiling. All new air-side equipment will be provided for the addition.

a. The design team determined that the 2nd floor addition will be the last vertical addition possible due to existing structural limitations.

Under the central penthouse (main), the VA may consider a design option to phase the relocation of existing mechanical equipment serving the 1st floor into a larger 3rd floor penthouse to increase maintainability of the existing equipment as well as provide the 2nd floor mechanical spaces for healthcare use.

4. Design criteria. In addition to “Applicable Codes and Standards” listed below, the following VA required design criteria is to be used for design development:

a. Department of Veterans Affairs HVAC Design Manual, 2017.

b. Department of Veterans Affairs Infrastructure Standards for

Telecommunications Spaces, 2019.

c. Department of Veterans Affairs Steam, Heating Hot Water, and

Outside Distribution Systems Design Manual, 2016.

d. Department of Veterans Affairs Boiler Plant Safety Device Testing

Manual, 5th Edition.

e. VA Physical Security and Resiliency Design Manual (PSRDM), 2020.

f. VA Fire Protection Design Manual.

5. Design documents and other deliverables. As required by the contract the following products will be completed and delivered:

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a. This design analysis.

b. Construction drawings.

c. Construction specifications.

d. Construction cost estimate.

6. To meet the project requirements the following analyses are to be completed and included with this design analysis:

a. HVAC Load Calculations.

b. VA HVAC Design Manual Table 2.1 ventilation / air flow calculations.

B. Survey of Existing Conditions:

1. Existing Chilled Water Plant: The HVAC team received a study/project from the VA (proj#537-19-126) that maps out the existing chilled water system. This project is used as the basis for determining chilled water plant capacity. The HVAC team verified locations of plant piping during an onsite survey of the pipe basement.

2. Existing Steam Plant: The HVAC team received a study/project from the VA (proj#537-19-126) that maps out the existing steam and condensate systems. This project is used as the basis for determining steam plant capacity. The HVAC team verified locations of plant piping during an onsite survey of the pipe basement.

C. Owner Furnished or Installed Items:

1. Owner furnished items: None.

2. Owner installed items: None.

3. Existing items to be reused:

a. The existing chilled water plant will provide a secondary chilled water connection.

b. The existing steam plant will provide heating for this project.

c. New HVAC controls (Tritium) will be provided in this project and shall be connected to the existing controls and user interface.

D. Applicable Codes and Standards: (The primary resource used in this design will be VA publications. Where additional information is required to complete the design the below codes and standards will be used.)

1. ASHRAE Standard 90.1 – 2013 Energy Standard for Buildings Except

Low-Rise Residential Buildings.

2. ASHRAE Standard 170-2017– Ventilation of Health Care Facilities.

3. ASME B31.1 – 2017 Building Pressure Piping.

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4. ASME B31.9 – 2017 Building Services Piping.

5. International Mechanical Code (IMC), 2018 with Addendum.

6. NFPA 31 – Standard for the Installation of Oil Burning Equipment.

7. NFPA 70 – National Electric Code.

8. NFPA 85 – 2019 Boiler and Combustion Systems Hazards Code.

9. NFPA 90A – 2021 Installation of Air Conditioning and Ventilating

Systems.

10. NFPA 90B – 2021 Installation of Warm Air Heating and Air

Conditioning Systems.

11. NFPA 110 – Standard for Emergency and Standby Power Systems.

12. SMACNA - HVAC Air Duct Leakage Test Manual, 2012

13. SMACNA - HVAC Duct Construction Standards - Metal and Flexible, E. Technical Analysis:

1. Phasing requirements: This project has minimal phasing requirements as follows.

a. New chilled water and steam plant tie-ins are required. It is expected that this will disrupt service, however these connections can be scheduled afterhours.

b. The new layout does not require relocation of HVAC equipment.

2. Critical path issues: None.

3. Climatic Conditions: From the VA HVAC Design Manual 2017 with

2019 Revision the climatic design conditions are as follows:

a. Winter: -1.5 F db

b. Winter extreme: -8.0 F db

c. Summer: 91.4/74.3 db/wb

4. VA HVAC Criteria per space.

a. Space criteria will be as prescribed in the VA HVAC design manual.

5. Chiller Connection: A chiller will be located on the second-floor roof and serve as the primary chilled water connection. Chilled water pumps will be included in the penthouse.

a. CH-01: 82 TON 170 GPM

b. CHP-01,02: 170 GPM, 67 ft.hd

Project No.: 537-327

Page E - 4

6. Chilled Water Plant Connection: A secondary chilled water connection is required to be made at the existing pipe basement below building

30. The estimated size is 4”. A chase will be required through building 30 and terminate into the new mechanical penthouse.

a. Capacity: 1300 MBH @ 220 GPM.

b. Pumping will be through central plant pressure.

7. Steam Plant: A new steam and condensate connection is required to provide heating water, and humidification for the building. This new piping is required to be made at the existing pipe basement below building 30. The estimated size is 4”. A chase will be required through building 30 and terminate into the new mechanical penthouse.

Steam from the campus system will be brought into penthouse where it will be routed to the penthouse and provide hot water for the HVAC system. The penthouse mechanical equipment room will house all pressure reducing stations, shell and tube heat exchangers, expansion tanks, end suction pumps, and all appurtenances required for the heating water plant.

a. Estimated Capacity Required: 2400 MBH @ 125 PSI.

b. A pressure-reduced station will be included to provide 30 PSI steam.

c. 30 PSI steam will direct inject to provide humidification to the central station air handler units (AHU).

8. Heating Water Plant: A new heating water plant will be included to provide heating and reheat. The design includes N+1 redundancy for all major pieces of equipment and bypass piping for non-major pieces of equipment.

a. Shell and tube heat exchangers will be used to generate heating water.

1. HTX-01, 02: 500 LBS/HR and 45 GPM.

b. End suction pumps will be provided to circulate hot water.

1. HWP-01,02: 45 GPM and 85 FT Head Pressure.

9. Air Side Distribution: One new AHU, located in the mechanical penthouse, will be provided to serve the air side needs of the building.

The AHU will be variable air volume (VAV) with terminal hot water reheat coils. AHU will have filtration, IFB steam preheat coil, cooling coil, return fan (2 fan minimum), and supply fan array (4 fan minimum).

a. AHU-01: 14,500 CFM and 3.2” external static pressure.

Project No.: 537-327

Page E - 5

10. Toilet Exhaust: Exhaust from the toilets will be ducted to the roof and exhausted.

11. Energy Conservation: The building AHU will be equipped and arranged for 100% economizer when the outdoor conditions permit free cooling.

12. Controls: The controls will be Tritium. They will tie into and utilize the existing network and user stations.

F. Information for Discussion / RFI:

1. Nomenclature of equipment including AHU’s, pumps, heat exchangers, etc.

a. As scheduled.

2. What is the maximum steam pressure the plant operates.

a. 100 PSI.

3. Our records show Tritium controls. Is this still accurate?

a. Tritium is still accurate.

4. The 50% review comments provided a range of delta T (14-16 F) desired for the chiller. Currently the design is for a 12 F delta T water difference. Increasing the delta T will reduce the pump capacity. A 12-degree delta T is recommended. Please advise if a change is required and specifically the design point desired.

a. The design proceeded with a 12 F delta T.

5. Glycol is not permitted for freeze protection per 4.2.5.1 of the VA HVAC DM. Freeze protection of the chilled water system is through electric heat trace. Please advise if a change is required and document deviation from the HVAC DM.

a. Glycol is not included in the design. The chiller control sequence includes circulation during cold days and electric heat tape. No other direction from the VA in this regard.

G. HVAC Team Items to Complete:

1. None.

Project No.: 537-327

Page E - 6

H. Appendixes:

1. TAB A – Basis of Design

a. TAB A.1 – Weather and Climate Data

b. TAB A.2 – Space Criteria from VA HVAC Design Manual

2. TAB B – Mechanical Calculations

a. TAB B.1 – Major Equipment Sizing and Calculations

b. TAB B.2 – Trace Loads

3. TAB C – Major Equipment Sections

a. TAB C.1 – Pump Selections

b. TAB C.2 – Buffer Tank Selection

c. TAB C.3 – Chiller Selection

d. TAB C.4 – AHU Selection

e. TAB C.5 – Heat Exchanger Selection

f. TAB C.6 – Ductless Split Selection

g. TAB C.7 - Unit Heater Selection

h. TAB C.8 - Fan Coil Selection

i. TAB C.9 - Exhaust Fan Selection

j. TAB C.10 - VAV Terminal Selections

k. TAB C.11 – Duplex Condensate Pump

l. TAB C.12 – Hydronic and Electric Radiant Heating

Women’s Health, 2nd Floor

Jesse Brown VA Medical Center Chicago, IL

Project Number: 537-327

F. Electrical Narrative

Project No.: 537-327

F - 1

F. Electrical

A. Design Requirements:

1. The electrical scope of work is to provide normal and emergency power, lighting, and all special systems for a new 24,000 square foot second floor addition to building 30.

2. Complete Special Systems design required based on the space usage and requirements of the VA Design Guides and Manuals. This shall include the following systems: Data/Telecommunications, Nurse Call, Access Control, CCTV, CATV and PA.

3. The existing lightning protection system from existing adjacent buildings provide a zone of coverage for the building add.

4. Normal power will be provided from the existing main switchgear in building 42.

5. Emergency power will be provided from the existing generator distribution switchgear in building 42. New Emergency power will serve all loads required by the Electrical Design manual; code required loads as well as various owner specified loads.

6. Design criteria. In addition to codes and standards listed in paragraph D below, the following owner required design criteria is to be used for design development:

a. Department of Veterans Affairs Electrical Design Manual December 2019.

b. Department of Veterans Affairs Fire Protection Design Manual, November 2023.

c. Department of Veterans Affairs Lighting Design Manual, January 2022.

d. JB VA Medical Center. Structured Connectivity Solutions (SCS) Specifications, VOICE AND DATA COMMUNICATION CABLING

e. Department of Veterans Affairs Office of Information & Technology Design Guide February 2011.

B. Applicable Codes and Standards:

1. NFPA 70, National Electrical Code – 2020 For VA. However, Cook county is currently using 2011 version.

2. International Energy Conservation Code - 2012

Project No.: 537-327

F - 2

3. NFPA 72, National Fire Alarm Signaling Code.

4. NFPA 99, Health Care Facilities Code.

C. Technical Analysis:

1. The Physical Security Design Manual also requires “The designer is to develop a design based on actual project requirements and conditions, including utility demand data, operational considerations, projected load reductions or growth, and applicable codes and VA criteria.”

2. As recommended in the Department of Veterans Affairs Lighting Design Manual, we will be providing LED lighting throughout the new facility.

3. Per the Department of Veterans Affairs Sustainable Design Manual occupancy controls will be provided to reduce the energy consumption and comply with ASHRAE 90.1 and with the VA Lighting Design Manual.

4. Per the Department of Veterans Affairs Sustainable Design Manual “All new buildings and/or additions to existing buildings entering design on or after July 9th, 2014, must be designed to meet the minimum requirements of ASHRAE 90.1-2010”. ASHRAE 90.1-2010 new requirements include 50% of receptacles in required spaces to be controlled by occupancy sensors.

5. Fiber OSP connection will originate from the existing main telecommunications room in building 1A. A 6-strand fiber will be provided to the demarcation point in the main telecom room from each new telecommunication room.

6. New normal power and emergency power distribution equipment will be in the new Electrical rooms. New normal power will be from distribution panelboard with Surge Suppression device served from existing main normal power switchboard in building 42 and this panel shall serve new lighting and receptacle panelboards. The service size for this addition is estimated to be 1000 Amp at 480 Volt. New emergency power panels for each branch of emergency power (Life Safety, Critical, Equipment) will be from the distribution panelboard in building 42.

Women’s Health, 2nd Floor

Jesse Brown VA Medical Center Chicago, IL

Project Number: 537-327

G. Physical Security Narrative

Project No.: 537-327

Section G - 1

G. Physical Security

A. Scope

The scope of work for this project calls for a single-story vertical addition to an existing Mission Critical Protected Facility. The scope meets the description of an addition of new story to and existing building originally designed without progressive collapse prevention per Table 2-1 of the VA Physical Security and Resiliency Design Manual (VA PSDRM).

Applicable baseline Physical Security and Resilience Requirements will be provided as follows:

1. Site Considerations:

a. Minimum Standoff Distance to the Facility of 50 feet will be required.

Minimum. Refer to item 1.d below

b. Standoff Distance to Screened Vehicles of 5 feet will be required

c. Unscreened parking will not be allowed within the 50 foot standoff distance.

d. Patient drop off area will be reviewed to insure the requirements of Section

4.2.8 pf the VA PSDRM are met. No parking will be allowed in the patient drop off area.

2. Building Entrances and Exits: Building entrances and exits are not part of the project scope of work.

3. Functional Areas: No functional areas defined in the VA PSDRM are part of the project scope of work.

4. Building Envelope: The new vertical addition building envelope will be designed in accordance with Chapter 6 of the VA PSDRM as required by Table 2-1 of the VA

PSDRM.

5. Structural System: Per Table 2-1 of the VA PSDRM progressive collapse design is not required based on the project scope of work

6. Utilities and Building Services: Further examination of the utilities and building services physical security requirements will be conducted once over building plan and scope has been selected from the proposed options.

7. Building Systems: Further examination of the building systems physical security requirements will be conducted once over building plan and scope has been selected from the proposed options.

8. Security Systems: Further examination of the security systems requirements will be conducted once over building plan and scope has been selected from the proposed options.

Women’s Health, 2nd Floor

Jesse Brown VA Medical Center Chicago, IL

Project Number: 537-327

H. Environmental Narrative

Project No.: 537-327

Section H - 1

H. Environmental

A. Summary of Design Goals and Objectives

1. Goals and Needs:

This work will include but not be limited to the design of an approximately 16,500 SF addition at the 2nd Floor (1st Floor roof) level of Building 30. The project will be required to facilitate both vertical and horizontal adjacencies, to configure the space for compliance with VA Design Manuals, provide a dedicated private entrance to the clinic with access control and to provide an efficient work flow as described in the Scope of Services.

2. Statement of Work:

This project will include review of the VA-provided asbestos report and will also alert VA to areas of work which may contain asbestos, but not previously identified. Planning for any actual abatement, or monitoring for abatement, is not in this scope of services.

The VA provided report makes no mention of asbestos containing materials in the area of Building 30. Any areas that may be potentially accessed or disturbed during construction for egress circulation or utility continuations, in the areas of Damen Pavilion (Buildings 1A & 1B), Ogden Pavilion (Building 11B) or Taylor Pavilion (Building 11A), will be noted if encountered.

Women’s Health, 2nd Floor

Jesse Brown VA Medical Center Chicago, IL

Project Number: 537-327 May 9, 2025

TAB B. Mechanical Calcs and Equipment jparker Text Box TAB A – Basis of Design

TAB A.1 – Weather and Climate Data

HVAC Design Manual November 1, 2017

CLIMATIC DATA 7-6

Location Weather Station

N or th L at itu de

M

SL

E le va tio n Col. 1a 0.4%

Col. 1b 99.6%

Col. 2a 1%

Col. 2b 99%

Col. 3 Wet Bulb

Annual Extreme Daily-Mean Db

Temperatures

Summer Winter Summer Winter 0.4% 1% Maximum Minimum

Db Wb Db Db Wb Db

IDAHO

Boise Boise Air Terminal 43.57 2867 98.6 63.9 8.7 95.4 62.9 15.5 66.2 64.7 104.2 3.5

ILLINOIS

Chicago W.

Side

Chicago O’Hare Intl AP 41.99 673 91.4 74.3 -1.5 88.7 73.2 3.7 77.8 76.0 96.0 -8.0

Chicago Lakeside Clinic

Chicago O’Hare Intl AP 41.99 673 91.4 74.3 -1.5 88.7 73.2 3.7 77.8 76.0 96.0 -8.0

Danville University of Illinois 40.04 764 92.0 76.0 -0.5 90.0 75.0 4.2 79.6 77.7 95.7 -9.7

Hines Chicago Midway AP 41.79 617 91.5 76.4 0.2 89.5 73.3 5.4 78.0 76.0 96.9 -6.3

Marion Mt. Vernon (AWOS) 38.32 479 93.4 76.4 5.4 91.2 76.0 11.5 80.3 78.3 97.4 -5.9

INDIANA

Ft Wayne Ft. Wayne Intl AP 41.01 827 90.8 74.3 -0.7 88.2 73.1 5.0 77.6 75.9 94.5 -6.7

Indianapolis Indianapolis Intl AP 39.71 807 91.0 75.1 2.0 88.7 74.0 8.1 78.2 76.8 94.3 -5.3

Marion Delaware Co Johnson 40.23 948 90.0 73.5 1.2 97.9 73.2 7.3 77.1 75.5 91.6 -3.8

IOWA

Des Moines Des Moines Intl AP 41.54 965 92.5 76.4 -5.3 89.6 754.1 -0.2 78.5 77.1 96.8 -11.4

Iowa City Iowa City Municipal

AP

41.63 669 91.1 75.9 -4.1 89.6 75.6 0.5 79.6 77.8 95.0 -12.8

Knoxville Des Moines Intl AP 41.54 965 92.5 76.4 -5.3 89.6 75.1 -0.2 78.5 77.1 96.8 -11.4 jknowles Rectangle

TAB A.2 – Space Criteria from VA HVAC Design Manual

6-68

Air Handling Type Dedicated (Par 6.2) Variable Air Volume Indoor Design Temperature Room Data Sheets Indoor Design Relative Humidity Room Data Sheets Minimum Total Air Changes Per Hour Room Data Sheets Minimum Outdoor Air Changes Per Hour Chapter 2 and Room Data Sheets Return Air Permitted Room Data Sheets Exhaust Air Required Room Data Sheets Air Economizer Cycle Required ASHRAE Standard 90.1 - 2016, or latest approved edition Heat Recovery System Required ASHRAE Standard 90.1 - 2016, or latest approved edition Filtration - Pre-Filters (PF-1 and PF-2) PF-1 = MERV 7 and PF-2 = MERV 11 Filtration - After-Filters (AF) AF = MERV 14 Cooling Source Chilled Water Heating Source Steam and/or Hot Water Humidification Source Plant Steam or "Clean Steam" General Exhaust System Required Yes Special Exhaust System Required Yes Emergency Power Required MRI Unit

Emergency Exhaust Fan Associated Controls

Individual Room Temperature Control Required Room Data Sheets Room Air Balance Room Data Sheets

(b) Coordination

Note 1 - Listed Rooms and Their Names Room names shown in the attached Room Data Sheets are based on the VA Radiology Service Design Guide, April 2008; the VA MRI Design Guide, April 2008; the VA Radiation Therapy Service Design Guide, April 2008; and the VA Nuclear Medicine Design Guide April 2008. See other sections of Chapter 6 for the miscellaneous and support rooms, such as, Housekeeping Aide's Closet (HAC), Attic Space, Crawl Space (Pipe Basement), Exterior Stairs, Mechanical/Electrical Rooms, etc.

The number of air handling units to be used shall depend on a study of the differences in required space conditions amongst the different types of imaging systems being provided, the expected operating hours, project budget, and physical space constraints of the project.

IMAGING SERIES - AIR HANDLING UNIT

AHU System Data Sheet

Note 3 -MRI (Magnetic Resonance Imaging) Unit

MRI Design Guide published by the VA Office of Construction and Facilities Management: This Publication contains valuable information about the space layout, equipment list, exhaust system and utility requirements.

A design guide plate for each room shows tentative room dimensions and equipment layout.

(a) Reference Document

Note 2 - Number of Air Handling Units

(d) Other HVAC Related Issues MRI chilled water system, and MRI quench vent system design shall be closely coordinated with the specific MRI system being provided. Ensure the coordination in the documents takes into consideration all MRI system provided equipment to be installed by the building contractor.

Capacity and configuration of the MRI Unit varies by manufacturer. Coordinate with the project specific MRI vendor is mandatory. Coordinate vibration isolation requirement of AHU(s) sited in proximity to the MRI scanner.

(c) RF Shielding For HVAC ducts and pipes penetrating RF shielding of the MRI Scanning Room, coordinate penetration requirements with MRI system manufacturer, RF shield vendor, and architectural discipline.

6-69

IMAGING SERIES - AIR HANDLING UNIT

AHU System Data Sheet

Note 4 - Radiology Service

(a) Reference Document Radiology Service Design Guide Published by the VA Office of Construction and Facility Management: This publication contains valuable information about the space layout, equipment list, and utilities requirements. A design guide plate for each room shows tentative room dimensions and the equipment layout.

(b) Shielded Walls and Ceilings For HVAC ducts and pipes penetrating shielded walls and ceilings,…