Sources Sought Vibration Table.docx

SOURCES SOUGHT / REQUEST FOR INFORMATION (RFI)

Project Title: Construction of a Seismic Mass Foundation for a Vibration Table System

Location: Air Force Packaging Technology & Engineering Facility (AFPTEF), 5219 Forbes St. Area A Bldg. 255, Wright Patterson AFB, OH 45433

1.0 PURPOSE:

This is a Sources Sought Synopsis / Request for Information (RFI) only. This is not a Solicitation or Request for Proposal (RFP). The Government is conducting market research to identify qualified, experienced sources capable of designing and constructing a heavy interior seismic mass foundation for a vibration table system. The Government is also seeking industry feedback on the foundation design, specifically regarding material density, depth, and overall cost-effectiveness.

2.0 BACKGROUND & DRAFT SCOPE OF WORK:

AFLCMC/EZPAA (AFPTEF) requires the installation of a massive concrete foundation (seismic mass) inside Building 255 to support a new vibration testing table. The foundation must be decoupled from the surrounding building slab to isolate vibrations.

2.1 Specific Demolition & Excavation Tasks:

To achieve the foundation requirements, the contractor will be required to perform the following:

· Concrete Demolition: Saw-cut, break, and remove the existing concrete floor within the designated footprint inside the facility.

· Excavation: Dig and excavate the underlying soil to the required depth (up to 92.00 inches, pending final design).

· Debris Removal: Safely haul away and properly dispose of all excavated dirt, concrete rubble, and construction debris off-base.

2.2 Draft Technical Parameters (The Foundation):

· Target Mass: The absolute minimum mass of the foundation block must be 527,000 lbs.

· Target Footprint: 176 inches x 372 inches (14 ft. 8 in. x 31 ft. 0 in.).

· Baseline Material: 4000 PSI concrete at standard density (approx. 152 lb/cu ft).

· Baseline Depth: Based on the baseline material and footprint, the required depth is estimated at 92.00 inches (7 ft. 8 in.) to achieve the target mass.

2.3 Site Constraints & Conditions:

· Site Preparation: AFPTEF will have all product, tools, and small items removed from the designated staging and installation area prior to the contractor starting operations.

· Interior Work & Clearance: All excavation, spoil removal, and concrete pouring will occur inside Building 255. There is a strict 14-foot height limit for entry into the building. All excavation equipment (e.g., excavators, loaders, dump trucks) and concrete delivery methods must account for this constraint.

· Hours of Operation: Work must be conducted Monday through Friday, 7:30 AM to 4:00 PM (excluding Federal Holidays).

3.0 INFORMATION REQUESTED FROM INDUSTRY:

Interested parties are requested to submit a Capability Statement demonstrating their ability to fulfill this requirement. Additionally, the Government is seeking specific engineering feedback regarding the foundation mass.

Please address the following in your response:

3.1 Company Information:

· Company Name, CAGE Code, Unique Entity ID (UEI), and Point of Contact.

· Business Size and Socio-economic status (e.g., Small Business, 8(a), SDVOSB, HUBZone, Women-Owned).

· Bonding capacity (single and aggregate).

3.2 Technical Capability & Experience:

· Briefly describe your company's experience in designing and constructing interior heavy equipment foundations, seismic masses, or shaker table pits.

· Describe your capability to perform deep interior excavation, manage spoil removal, and pour large volumes of concrete within a facility with restricted overhead clearance (14 ft max).

3.3 Industry Feedback / Design-Build Approach:

· Cost-Effectiveness of Depth vs. Density: The Government's primary objective is to achieve the 527,000 lb mass requirement in the most cost-effective manner. There are no site restrictions requiring a shallow pit. However, the Government is open to shallower designs (e.g., utilizing high-density concrete or dense rebar) only if it reduces the overall project cost.

· Based on your expertise, please provide feedback on the cost-tradeoffs: Is it typically more cost-effective to perform the deeper excavation and spoil removal for a standard 92-inch deep pour, or to use more expensive, high-density materials to reduce the excavation depth?

· Are there any standard commercial practices or vibration isolation materials (e.g., perimeter isolation joints) you would recommend for a project of this nature?