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Weiler House
San Francisco
Christopher Linton
Construction Management
Building Statistics
PROJECT // 01
Project team
Owner:
Confidential*
General Contractor:
Turner Construction
http://www.turnerconstruction.com/
Construction Manager:
Turner Construction
http://www.turnerconstruction.com/
Architects:
Marion Weiss and Michael Manfredi
Engineers:
Thornton Tomasetti (Structural Engineers)
http://www.thorntontomasetti.com/
Jaros, Baum & Bolles (M/E/P/FP)
Heintges (Glazing)
Renfro Design Group (Lighting)
General Building Data
Building Name ǀ Weiler House
Location and Site ǀ San Francisco, CA
Building Occupant Name ǀ Weiler Colocation House
Occupancy or Function Type ǀ Business/Assembly
Overall Building Size ǀ 188,603 SF
Number of Stories ǀ 6 stories above grade; 7 total levels
Primary Project Team ǀ Weiler House
Turner Construction, Weiss/Manfredi,
Tomasetti, Baum&Bolles(B&B), Heintges,
Renfro Design
Dates of Construction ǀ May 2015 – Summer 2017
Actual Cost Information ǀ Contract Value: Core and Shell - $100 Million
Project Delivery Method ǀ Design – Bid– Build
architecture
Design and Fuctional Components
This co-location center is designed to combine student research and companies in industry to create innovation in new products and technologies. The mixed use building contains a 2 story atrium located in the main entrance lobby shown in Figure 1. and a shaded slanted skylight . Allowing high natural daylight, low emissivity and a reduction in lighting operation. A centralized stairway is used to incorporate seating and natural egress to the second floor. Leading to tenant fit out spaces that surround the core elevator.
zoning
Utilizing group 6 (Commercial) and group 3 (Community Facility) zoning. The project has a zoning area of 188,603 SF which excludes the below grade level and the MEP chase on 1-6.
Figure 1. Interior Lobby
Applicable codes
2014 San Francisco Building Code
2014 San Francisco Fire Code
Figure 4. Green Roof System
Figure 3. Exterior Elevation
Figure 2. Exterior Render
Building Envelope
Weiler House features a curtain wall system with aluminum mullions, aluminum cladding and aluminum soffit edges. Figure 2 and 3. displays the aluminum cladding.The aluminum cladding is located on the inner and outer wing portions of the building while, the the curtain wall system remains the most frontward and backward facing. Each curtain wall panel consists of insulated low E glazing with varying fritted glazing patterns.
The Roofing material is a TPO membrane with concrete pavers laid above. The Typical buildup of this roof consists of a flashing layer, two layers of 2" rigid insulation, an air layer, root barrier, filter fabric, and pavers on jack stands. The roof system incorporates a green roof which, can lead to better thermal insulation and water management savings. Using the rainwater collected to provide irrigation and in some cases can be used as gray water saving. This can ultimately require less work load on mechanical and plumbing systems. The green roof is similar in build, the filter fabric is replaced with a drainage mat and vegetation above. A unique aspect is clearly shown in Figure 4. and is a functional roof feature. The solar canopy provides a shelter from rain and provides additional electricity due to photo voltaic panels. Meshing the two functions of rain protection and electricity generation.
Sustainability Features
Sustainable features include a rooftop solar array system, generating additional electricity and lowering electrical usage. Followed by a bathtub foundation design containing a deep basin and high walls to keep water out. Next, a green roof water management and storm water capture. This utilizes the storm water for reuse in gray water systems, as well as efficient fixtures to maximize savings. Lastly, natural daylight. By using large curtain wall panels, daylight can be maximized, reducing lighting usage and ultimately improving occupant performance.
Primary systems
COnstruction
Weiler House is part of a 30 year campus renewal plan, located on 2.5 acre plot of land. Turner construction was appointed the general contractor for the construction of the project and possess a Design-Bid Build with Weiss/Manfredi for design of the building. Located at a undisclosed location, it contains two main roads on adjacent sides of the site. Logistics of the site are important due to four projects occurring simultaneously. Construction of Weiler House will utilize a single 40 ton hydraulic crane, with boom length that is able to reach Weiler's seven story height. The curtain wall facade is a critical path item, and panels are a critical long lead item required for the project. Overall, the project is scheduled to meet the project closeout on March 3, 2017.
Structural
The structural system for Weiler House is composed of structural steel framing and composite steel deck. With the main superstructure consisting of structural steel columns, beams, and trusses that not only support each floor, but also support a 2 story lobby atrium. Concrete slabs at the main lobby are 2 ways slabs, depressed 3". Floors above are 5" composite steel deck, with lateral bracing at the main face that support the braced framed curtain wall system. The roof is a sloped reinforced concrete slab system with drainage penetrations. Framing for each floor are standard wide flange beams that vary in length, from 4'-40'.
Mechanical
Mechanical systems are located at numerous floors throughout the building. At the cellar level there are 5 mechanical rooms. A main garage and building mechanical room, fire tank/ pump room, water meter room, and fuel tank/pump room. Each subsequent floor has at lest one mechanical leading to the roof. The roof houses a stainless steel 255,200 CFM cooling tower with a chiller in the cellar level mechanical room. This leads to a water cooled air-conditioning system with inlet return air acoustical plenums at all levels above the cellar level.
electrical
A utility transformer connects to the main switchboard, located at the penthouse at 3000 Amps. Traveling to 10 transformers throughout ranging from 30 KVA- 70 KVA. This leads to panel boards located on 1, 3, 6 floors providing electricity for light fixtures and receptacles. At the roof level a solar canopy houses Photo-voltaic panels, providing additional energy through sun light.
lighting
Lighting is composed of Recessed LED down-lighting for the lobby, atrium, and elevator skylights. Using LEDs will minimize energy consumption and serve as a decorative fixture as well. Occupancy sensors are wall mounted according to spaces and are automated for main community spaces such as the lobby atrium. Lighting is controlled within spaces by a main control switch, giving the user defined lighting schemes. These main lobby system will be programmed on a 12 hour low energy consumption schedule to reduce lighting load.
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