GS-04P-09-EX-C-0077 Amendment 4.doc

George C. Young Federal Bldg & Courthouse

GS-04P-09-EX-C-0078

Orlando, Florida

18 May 2009

The Request for Proposal (RFP) under Solicitation Number GS-04P-09-EX-C-0078 is hereby amended to include the following information regarding Building Information Modeling (BIM).

Building Information Modeling (BIM)

GSA has chosen a collaborative CMc delivery method for this project. Collaborative delivery, as practiced by GSA, is BIM-based and puts the interest of the project above the individual team members. All members of the project team are expected to be committed to the use of 3D/BIM in the project, share their areas of BIM expertise with the team, include in the BIM models data requested by other team members, look for cost savings and schedule improvements during the entire project duration, and endeavor to leave as a legacy a fully updated, “as-built” facility management BIM. To achieve these goals, the Government intends to use BIM technology for a variety of uses as outlined below. The CMc is expected to be a full partner in this process. GSA's BIM objectives for this project are as follows:

The BIM project objectives are:

Use of 3D geometric models for visualization and spatial data management, as required by GSA’s national BIM program.

Use of 4D models for phasing analysis.

Use of 3D/BIM for design and construction coordination – building the project virtually before it is built in reality.

Use of BIM (with smart objects) for an array of analyses.

The objectives and specific requirements and tasks are presented in the following sections:

3D Geometric Model

The Contractor will review any 3D rendered perspectives, virtual animations or interactive live model provided by the A-E for visualization and communications with different project stakeholders. The Contractor will review the visualization model to ensure that it effectively aids in the presentation of design alternatives and incorporates a level of detail necessary to assist in the selection of design alternatives. The system of measure for modeling renovation and alternation projects shall be soft metric (e.g., designations such as “1 inch (25.4mm)” in which metric equivalents are attached to SI units), unless a waiver is obtained to use English measures. Measurement accuracy must be 3mm (approximately 1/8th inch) per section 8.1.2 of the PBS CAD Standard (March 2004). The A-E/contractor(s) shall deliver a 3D geometric model, using a 3D computer application(s), of the following systems. Contractor shall use 3D geometries (e.g., shapes, solids, surfaces, etc.) to represent building components. Refer to PBS BIM Guides (www.gsa.gov/bim) and National BIM Standards (www.wbdg.org). The specific component requirements are to be determined in coordination with the GSA. The geometric model should include, but is not limited to, the following components:

Architectural

Volumes, slabs/floors, shafts, exterior façade, interior walls and partitions, workstations, finishes, materials, etc.

3D Geometry Based Zone Analysis

The Contractor shall Include zoning in the 3D geometry of any models the Contractor builds (in addition to the requirements established in above) such that the model(s) is compatible with a computer-based analysis of zones (e.g., circulation, operations, security, etc.). This model shall be used for customer visualization of the proposed design and analysis of operation flows with respect to zones (e.g., commercial, POV, pedestrian). The Contractor shall build upon the components found in the 3D geometric model(s) or BIM(s) and described in the GSA BIM Guide Series.

Structural

Foundation members, structural steel and concrete, pre-cast systems, etc.

Mechanical

UPS systems, air handling units, HVAC ductwork, HVAC equipment, piping, elevators, etc.

Electrical

Conduits over 4”, panel boards, electrical equipment, etc

Plumbing

Plumbing fixtures and equipment, piping over 4”, etc

4D Models for Phasing

Project Phasing

The Contractor shall provide a series of 3D diagrams or model snapshots to support the communication of the proposed project phasing, including, but not limited to, all major project phases. For the phasing of MEP systems, the Contractor shall develop a phasing schedule to determine when each system will be taken offline, moved, and restored to working capacity. The Contractor shall insure that the level of detail for the schedule and 3D model are properly coordinated. The A-E/contractor shall coordinate and seek approval from the GSA project team regarding the specific project phases. The A-E/contractor shall base these diagrams upon the 3D model(s) created from Section 2.12.1 and/or 2.12.3.

Tenant Relocation

The A-E/contractor shall provide a series of 3D-based diagrams or model snapshots to support the communication of the proposed tenant relocation including, but not limited to, locations of tenants affected, location of construction work and staging areas. The A-E/contractor shall base these diagrams upon the 3D model(s) created from Section 2.12.1 and/or 2.12.3.

Construction Sequencing

The Contractor shall provide a series of 3D diagrams, model snapshots and an interactive 4D model to support the communication of the proposed construction sequencing including, but not limited to, construction and installation of major building components (e.g mechanical equipment, interior walls, etc.). The Contractor shall base these diagrams upon the 3D model(s) created from Section 2.12.1 and/or 2.12.3. The Contractor shall deliver 3D perspectives, collision detection reports, and virtual animations and an interactive live model for visualization and communications with GSA and different project stakeholders. The diagrams or snapshots shall support periodic design coordination, constructability review and 4D schedule visualization. The Contractor shall deliver phasing animations or diagrams which describe how all necessary systems will stay in operation throughout the relocation process.

Building Information Model

The Contractor shall provide to the A_E after project award their construction BIM modeling requirements, to enable the models developed by the A-E during the design stage are compatible with the CMc modeling capabilities used during the construction phase of the stage.

The A-E will provide to the Contractor and other team members a BIM of the following systems. The model developed by the A-E will properly use available “smart objects” that embody information about the building component requirements and properties (e.g., material properties, functional information, dimensions, etc). The BIM shall be constructed allow the project team to use the information for one or multiple BIM analysis applications as appropriate, in addition to those found in section 2.12.2. The following sections describe more specific information that shall be included in, but not limited to, the following models. In addition to references cited below, all models shall comply with GSA BIM Guide Series (www.gsa.gov/bim), National BIM Standards (www.wbdg.org), and the PBS CAD Standards, or as agreed upon by GSA.

If the A-E cannot perform all the tasks defined in this scope, the tasks may be assigned to the Contractor or another team member with the needed expertise.

Architectural

The Contractor will review the architectural model provided by the A-E. The architectural BIM will include “architectural objects” that embody proper “object information.” In other words, whenever a tool is available in the BIM-authoring application to create the correct object type, it will have been used. Following this review, the A-E will coordinate and seek approval from the GSA project team regarding the contents of the model.

Space Analysis

The A-E will provide to the Contractor, a spatial program Building Information Model (BIM) for program validation and analysis. The model will have been built upon the architectural BIM with the minimum following spatial attributes: space number (ID), space name, GSA BIM area, BIM design gross area, occupant organization name and client space type. The A-E/contractor shall finalize deliverables in accordance with the BIM Guide Series 02- Spatial Program Validation developed by the GSA Office of the Chief Architect (www.gsa.gov/bim).

Zone Analysis

The A-E will include 3D geometry or BIM objects (in addition to the requirements established in above) such that the model(s) is compatible with a computer-based analysis of zones (e.g., circulation, preservation, security, etc.). The A-E will have built upon the components found in Section 2.12.3.1.1 and the GSA BIM Guide (www.gsa.gov/bim).

Structural

The Contractor will review the structural model provided by the A-E. The structural BIM will include existing conditions and any new structural elements with the proper use of “structural objects” that embody “object information” about structural member profiles, members, and dimensions. Following this review, the A-E shall coordinate and seek approval from the GSA project team, regarding the contents of the model.

Mechanical

The Contractor will review the HVAC model provided by the A-E. This HVAC BIM will embody “object information” (e.g., manufacturer system properties, duct class, maximum loads) about ductwork, HVAC equipment, piping, elevators, insulation, etc. The Mechanical BIM will have been built to incorporate all mechanical elements over 2”. Following this review, the A-E will coordinate and seek approval from the GSA project team regarding the contents of the model.

Energy Modeling

The A-E will include, at a minimum, object representations of all spaces, thermal zones, floor slabs, walls, the building envelope, and mechanical equipment etc, for purposes of an energy simulation. The A-E shall coordinate with the GSA project team to determine the appropriate level of detail and scope to include, as related to building performance analysis. The energy model(s) shall build upon the components from previously created 3D and BIM and the GSA BIM Guide (www.gsa.gov/bim).

The A-E/contractor shall perform and coordinate energy modeling services, and manage any efficiencies of data transfer afforded by “object information” included in the model(s). The A-E/contractor shall contact OCA and the GSA project team to coordinate specific modeling scenarios and goals.

Daylight Model The A-E will include 3D geometry or BIM objects (in addition to the requirements established above) such that the model(s) is compatible with daylighting analysis. The A-E will build upon the components found in previously created 3D and BIM elements and the GSA BIM Guide Series (www.gsa.gov/bim).

The A-E will perform and coordinate daylight modeling services and manage any efficiencies of data transfer afforded by “object information” included in the model(s). The A-E will contact the GSA project team to coordinate specific modeling scenarios and goals.

Electrical

The Contractor will review the electrical model provided by the A-E. This electrical BIM will embody “object information”(e.g., loads, sizing) about conduit systems over 2”, panel boards, electrical equipment, etc. Following this review, the A-E will coordinate and seek approval from the GSA project team regarding the contents of the model.

Plumbing

The Contractor will review the plumbing model provided by the A-E. This plumbing BIM will embody “object information”(e.g., pressure, sizing, manufacturer data, etc…) about plumbing fixtures and equipment, piping over 2”, etc. Following this review, the A-E will coordinate and seek approval from the GSA project team regarding the contents of the model.

BIM Enabled Services

Design and Construction Coordination

The Contractor, in collaboration with the A-E shall provide and integrate 3D geometry such that the model(s) is compatible with clash detection software to enable design and construction coordination across different design disciplines. The A-E and Contractor shall deliver 3D geometric and/or BIM models that have already been coordinated to highlight, minimize, or eliminate clashes and interferences. The A-E and Contractor shall coordinate with the design team (e.g., structural engineer, MEP engineer, steel fabricators, MEP sub-contractors etc.). The A-E and Contractor shall build upon the components found in the 3D geometric model(s) or BIM(s) and the GSA BIM Guide (www.gsa.gov/bim).

Cost Estimating

The Contractor, in collaboration with the A-E, shall include 3D geometry and BIM objects (in addition to the requirements established in sections 2.12.1 and 2.12.3) for cost estimating. This includes, but is not limited to, geometries or objects that are not reflected in the model(s) or objects that are present in a cost database, but not present in the 3D geometric model(s). The level of the cost estimate shall correspond with the appropriate Uniformat Level as defined in PBS 3440.5. This model shall be based upon models from Section 2.12.3

Quantity Take Off

The A-E/contractor shall include 3D geometry and BIM objects (in addition to the requirements established above) for Quantity Take Off. This would include, but not limited to, geometries or objects that are not reflected in the model(s) or objects that are present in a typical QTO, but not present in the 3D geometric model(s). This model shall be based upon models from Section 2.12.3

BIM Enabled Building Operations and Management

Building Operations

The A-E/contractor shall integrate and provide 3D geometry and additional building information (e.g., manufacturer, product information, operating and maintenance instructions, dimensions, etc) as current and available to enable coordinated commissioning activities and facility management (e.g., maintenance schedules, maintenance coordination, mechanical operation, etc.) across building life-cycle phases. The A-E/contractor shall build upon the components found in the 3D geometric model(s) or BIM(s) and the GSA BIM Guide (www.gsa.gov/bim).

Facility Management

The Contractor shall include additional BIM information (e.g., operations and maintenance schedules, warranty information) for purposes of facility management. This model shall be based upon models from Section 2.12.3. The Contractor and subcontractors are encouraged to utilize high-precision 3D models and/or BIMs for shop drawing development, fabrication, electronic manufacturer product information and other facility ma and to coordinate with GSA building management team for Facility Management.

BIM Coordination

The Contractor shall conduct for the project team coordination, constructability and clash/collision review meetings that integrate all design models into a common NavisWorks environment. The Contractor shall coordinate with the A-E throughout the design stage of the project to develop models that are compatible with the Contractor’s modeling needs and capabilities during the fabrication and construction stage of the project.

Electronic/Print Media

CAD Standards

Starting with the design development submission all drawing materials provided by the A-E to the Contractor will be in accordance with the GSA PBS computer aided design (CAD) standards. Any drawing materials provided by the Contractor, including final as-built drawings, will conform to the GSA PBS CAD standards. Go to http://www.gsa.gov/cifm for requirements.

BIM Media

Building information models required within this scope must be submitted in both the native file format of the BIM authoring tool and in Industry Foundation Classes (IFC) format. All Simulation models, visualizations, and interactive models (collision/clash detection, model checkers, 4D schedule models) must be submitted in their native file format, or as agreed upon by GSA. BIM deliverables shall supplement, and not replace, the GSA PBS CAD standards and deliverables. For specific requirements: http://www.gsa.gov/bim.

End of Amendment No. 4

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