RJM has extensive structural engineering capabilities for new buildings as well as rehabilitation/repair of existing facilities. Our project experience has included foundations, steel and concrete structures for multistory building modifications and retrofitting of existing structures to comply with new code requirements.
Old Court Road Metro Maintenance Facility
MTA Metro Station
RJM provided structural and site design for this Metro maintenance facility, which was comprised of a 2-story maintenance building, pre-fabricated storage buildings and retaining wall for a parking facility. The design of the proposed maintenance building included steel framing, structural concrete shear walls for wind loads and extended continuous concrete footings to resist unbalanced horizontal earth pressure. Composite concrete steel floor decks were designed for spans of up to 27 feet. Floor slabs were designed to accommodate maintenance vehicles and equipment storage, and included vehicle inspection pits.
The retaining wall utilized a “Double Wall” system to support parking facilities using fills up to 16 feet in height. Foundations were designed for several prefabricated equipment storage buildings.
Civil design included preparation of alternative concepts and final design for a parking lot, including geotechnical analysis, pavement design, as well as an underground stormwater management facility for both quality and quantity control for the new impervious area.
Detailed construction cost estimates were prepared for buildings, parking areas and retaining walls. Construction phase services included review of structural shop drawings, responding to contractors request for information (RFI) and review of contractor’s claims.
RJM Engineering provided preliminary and final design for the rehabilitation of McKinley Technology High School in Washington, D.C. in the following areas:
Design services were performed in two phases. Phase I services included preparation of design, including construction cost estimates for various alternatives. Final design services included build-level design preparation of construction drawings, cost estimates, and specifications using SPECTSINTACT program.
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RJM Engineering prepared structural repair design documents, including specifications, drawings and estimated quantities for various repairs identified in MTA’s 2008 Inspection Report. Types of structural repairs included multi-level concrete station buildings and tunnels.
In Phase I of this project, RJM reviewed and updated MTA’s list of repairs completed since a 2008 inspection, and prepared a final list of recommended repairs that had not been performed. RJM also performed field visual verifications of recommended repairs in order to reconcile discrepancies in the existing as-built drawings.
In Phase II of this project, RJM prepared specifications, drawings and estimated quantities for various types of repairs and locations, based on the final list of recommended repairs prepared in Phase I, to be used by MTA for ancillary contract advertising. Locations and types of repairs were specified on plan sheets showing layouts of all of the structural members and rooms in each of the stations.
