B4_Site_Visit_Briefing_Correction,_18B0028.pdf

Organized Site Visit – Repair Building 9085

• Project: Building 9085, Repair

• Subject: Organized Site Visit

• Date(s): Monday 09 July 2018

Tentative Agenda

• 0900-1000: Check-in and Overview

Presentation, Building 7065 Room 274

• 1000-1030: Relocate to Building 9085 and

Exterior Visit

• 1030-1200: Building 9085 Tour

• Details

• Date: 9 July 2018

• Time: 09:00 am (CDT)

• Location:

• 2320 Carswell, Building 7065

• Suite 14, Room 274

• JBSA Lackland AFB, TX 78236-5506

• POCs: Devin Penaluna

• EMAIL:

devin.r.penaluna@usace.army.mil

• Phone: 210-218-5746

*See Correction From Presentation as Presented on 09 July 2018 on Page 21, Titled Electrical Mechanical Equipment Connections.

mailto:devin.r.penaluna@usace.army.mil

Refer to FBO for Official Specs and Drawings

• Presentation intended to support understanding of project from a high level introduction. This presentation is not an official document in the bid process and is not all-inclusive or comprehensive.

• Official documents with full details are available through FBO.

• Please formally ask all questions from today’s visit in ProjNet.

• Contracting Specialist, USACE, and 502d Introductions

• Sign-In Sheet Completion

Building 9085

General

• Building 9085 is located at Joint Base San Antonio (JBSA), Lackland AFB (LAFB), in San Antonio, Texas.

• Building 9085 was previously included in the demo list however, due to changes in succession planning, this proposed project is to renovate B9085 to extend the life of the building by 7 years

• The facility is approximately 215,000 square feet on three floors and was built in 1971.

• There is a single-story center core that houses classrooms, dining facilities, mechanical room, kitchen and offices.

• Surrounding the single-story core are ten two-story barracks pods, which are located at the second and third floor levels.

• A major renovation to the building took place in the late 1990’s.

Site

Civil Improvements Covered training areas (CTA)

• CTA 2, 4, 5, and 9 will be removed and replaced.

• Fill any areas that soils have washed from under the CTAs and have left large holes.

Cooling tower basin

• Demolish the existing cooling tower and basin.

• Provide new mechanical equipment shown in the mechanical series of the drawings provided.

• Replace the existing wooden gate with a new chain link swing gate provided on C-

500.

Concrete stair landings

• New concrete landings will be provided at the bottom of all new stairs.

• Build landings in accordance with details provided on S-109. Landing dimensions will be a minimum of 5x5 FT.

• Demolish any vegetation (bushes, trees, shrubs) that is blocking the egress pathway away from the building.

Civil Utilities Backflow preventers

• Implement backflow devices on both 6-inch water service lines.

• The backflow preventers will be placed according to Sheet CI100. Locations must be coordinated with the COR.

• Backflow preventer details are provided on C-500.

Electrical transformers

• Contractor will provide secondary power lines to the new transformers provided by

CPS Energy. Coordinate with CPS Energy and the COR.

• Electrical routing is diagrammatical on CU100. See electrical sheets for routing details.

Mechanical plumbing

• Chilled water supply and return must be installed with the new mechanical equipment.

• Routing is depicted on CU100.

Gas meter

• Install a new gas meter in accordance with details on C-500 and location on CU100.

Architecture

Exterior structural frame

• Repaint steel Roof

• Demolish existing roof drains and drain pans and install new

• Demolish lower roof down to structural deck and install new roofing system

• Patch and repair upper roof

• Repair damaged gutters, downspouts, and downspout terminations.

• Replace deteriorating expansion joints.

Exterior Walls – Stucco and Masonry

• Clean exterior

• Repair areas of stucco that have failed Exterior Stairs – Fire Escapes and Mechanical Access

• Construct new stairs and landings with compliant railings Sealants – interior and exterior

• Seal cracks in structure

Exterior Doors and Hardware

• Demolish existing egress door leaves and hardware and install new

• Demolish non-functioning door leaves and hardware and install new

• Existing door frames to be maintained where possible Expansion Joint Covers at interior – stainless steel covers

• Demolish all expansion joint covers that causing trip hazards and install new; do not address structural issues

• Reseal around expansion joints

Interior stairs to dormitories

• Existing stairs to remain in service. Demolish concrete pan fill and nosings; pour new concrete in existing pans and install new nosings

• Install new railings

Structural

New Chiller Pad

• Demolish existing cooling tower structure and provide new pad for air cooled chillers Replacement Exterior Stairs and HVAC DOAS Unit Platforms

• Replace existing exterior stairs

• Add DOAS unit platforms where indicated Steel Framing

• Lateral bracing at tapered steel frames in dorm areas

• Replacement framing under dishwashing room in crawl space

Mechanical

Central Heating Systems

• Two (2) existing steam boilers re-used.

• Steam boiler burner, controls & instrumentation replaced.

• Existing steam to hot water convertor re-used.

• Existing heating water pump replaced and a stand-by pump added.

Central Cooling Systems

• Two (2) new air-cooled chillers located within existing cooling tower screen wall enclosure.

• Existing chilled water pump replaced and stand-by water pump added.

Air Handling Systems

• Existing horizonal concealed DX AHU’s/FCU’s serving First Floor areas replaced.

• Re-used AHU’s cleaned, refurbished and rebalanced.

• Existing kitchen hood make-up air units and EF’s replaced.

• Kitchen hoods refurbished.

• New DOAS system using air cooled DX DOAS units.

Air Distribution Systems

• Re-used ductwork cleaned.

• Replaced ceiling diffusers.

• Re-insulate and re-seal re-used First Floor supply ductwork.

• Air distribution systems will be rebalanced.

Piping Systems

• Steam and condensate re-used.

• Majority of chilled water re-used, re-insulate re-used piping.

• New pre-insulated direct buried piping to chillers.

• Majority of heating water re-used.

Automatic Temperature Controls

• Existing EMCS network and controllers re-used.

• Existing network extended to new controllers.

• BACnet communications protocol.

Plumbing Existing Fixtures

• Install new sanitary sewer pipe and vent pipe at existing urinals.

• Install new water closet rings on floor flanges.

• Install new flush valve diaphragm kits on flush valves at water closets and urinals.

New Fixtures

• New ground floor restrooms with accessible water closets, lavatories, and showers.

• New drinking fountains with bottle filler option in interior replacement locations.

Fire Protection Sprinkler System

• Match existing heads where ceilings are replaced.

Fire Pump

• Replace fire pump. New fire pump to be located in fire pump room instead of present location in mechanical room.

Electrical

ELECTRICAL SERVICE

• Existing 13.2 KV dual-service and double-ended switchboard is to be removed and replaced.

• Two new, 13.2 KV – 277/480V transformers to be provided by CPS

Energy, located outside the building.

• New, dual, 480V service laterals from new utility transformers to new double-ended switchboard.

• New, double-ended switchboard, with tie circuit breaker to be provided in main electrical room. All existing feeders to be reconnected to new switchboard sections.

• Provide dual, dedicated services to fire pump controller.

POWER DISTRIBUTION

• Provide new step-down transformer and new 120Y208 V, 3-phase panel board.

• Provide new branch circuits for new receptacles and mechanical equipment as indicated.

• Provide new, temporary, outdoor mounted, engine-generator set to supply existing panel C and downstream loads during the replacement of the electrical service and switchboards. IT server room cannot be without power at any time during renovation work. Coordinate temporary power with JBSA personnel.

• Modify existing MCC buckets to accommodate new loads as indicated on plans.

Provide new circuit breakers, starters and/or modified existing buckets.

• Provide conduit and wire for BAS control cabinet additions as indicated.

Coordinate HVAC control voltage and additional control wiring and conduit with mechanical drawings.

LIGHTING

• Exterior building lighting to be replaced with LED fixtures. Including existing exterior light poles.

• Remove and replace existing interior lighting with fluorescent type fixtures. Provide new emergency battery packs and new exit signs, as indicated.

• Provide occupancy sensors for lighting controls, as indicated.

MECHANICAL EQUIPMENT CONNECTIONS

• Disconnect and remove wiring, conduit and circuit breakers to existing mechanical equipment to be removed, as indicated.

• Provide new feeders to new mechanical equipment.

• Reconnect replacement ventilation fans to existing circuits, as indicated for certain units.

• Provide new feeders to new mechanical equipment including DOAS units.

• Interconnect new air handling units to corresponding VRF condensing units. DX, not VRF eruffel Highlight

FIRE ALARM SYSTEM

• Remove existing fire alarm system, including notification and annunciation appliances.

• Provide new Fire Alarm system. Interconnect with hood fire suppression system, fire protection system including fire pump controller, flow and tamper switches and air handling units.

• Power new power supply units and batteries for a fully compliant system.

• Coordinate antenna installation and set-up with JBSA frequency.

MASS NOTIFICATION SYSTEM

• Provide new mass notification system.

• Coordinate pre-recorded messages with JBSA requirements.

Telecommunications

OUTSIDE PLANT (OSP)

• Extend one 12-strand single mode fiber approximately 2,000 feet.

• Maintain electric power to existing communications hub within

Building 9085 during construction.

BUILDING COMMUNICATIONS

• Provide new phone lines.

• Maintain connectivity to existing SARC phones in lavatories.

• Provide data for staff use on computers, LAN, etc.

• Add patch panel on rack for new drops.

• Connect 12-strand single mode fiber to switch.

Sustainability

FEDERAL HIGH PERFORMANCE SUSTAINABLE BUILDINGS

• Green and energy efficient purchasing requirements.

• Air Force Sustainability Tracking Sheet

• No LEED, GreenGlobes, or Third Party Certification requirements.