Ward 6 Senior Wellness Center

Rehabilitation and change of use of the historic Rutherford B. Hays School building at the corner of 5th and K Streets, NE into a Senior Wellness Center for the District of Columbia. No design information was available for the abandoned and severely dilapidated 120-year old, wood and brick masonry structure. The work included geotechnical testing and excavations to determine the water table level, allowable soil bearing capacity, and existing foundation conditions as-well-as a complete structural condition survey to determine the parts of the building that were salvageable for re-use, the allowable live load capacities, and the production of as-built drawings for use by the design team.

National Institutes of Health (NIH)

Structural Engineer for various renovations, new construction, structural strengthening, structural load surveys, structural support work for MEP upgrades, and studies for a wide variety of projects on the Bethesda National Institutes of Health campus (Buildings 3, 10, 12, 14, 32, et al.). One of the currently on-going projects is the renovation of Building 3

• Building 3 Renovation - Building 3 was originally constructed in 1938 as part of the original NIH Bethesda campus. The concrete framed building originally served as a research laboratory until it was de-commissioned in the late 1990’s. The work included structural surveys of the existing conditions, analysis of the existing structure and foundations to accomodate the proposed renovation, and structural drawings to accomodate the modifications and strengthening requirements to support the renovation requirements.
• Building 12 Power Upgrade - The Power Upgrade involved structural studies of an existing building to support the addition of 4 large (150,000 LBS) power units and the associated hardware and fuel supplies. The work required structural strengthening, new dunnage systems, structural modifications to the existing building, and GPR subgrade investigations of the complex run of the existing subgrade utilities.

Social Security Administration IDIQ

Provided structural engineering services in connection with an the IDIQ contract for Architectural and Engineering support services between the Social Security Administration and Setty & Associates. This contract required that the completion of multiple task orders simultaneously, many of which featured short turn-around times. A sample of our task orders includes the following.

• Operations Building Cafeteria - Studied a commercial kitchen concrete slab to determine the extent of concrete damage and to recommend repair options. Recommended and supervised the installation of temporary shoring to support slab, and subsequently provided periodic field inspections, until the building was scheduled to undergo major renovation activities.
• Metro West Office Building - Investigated the cause of, and provided recommendations to correct, large floor cracks in the vicinity of a new high-density file system on the second floor.
• Middle River Warehouse - Surveyed several rack storage system to determine the extent of physical damage, investigated the design capacity of the system as installed for gravity and seismic forces, and made recommendations for repair measures and a user safety program.
• Independence, MO Storage Facility - Evaluated an as-built rack storage system located in an enormous underground city that was built in a converted abandoned limestone mine. The evaluation indicated the extent of the physical damage to the system, the design capacity for physical and seismic forces, and repair recommendations.

Horizons on The Bay

Horizons on the Bay is an 8-story, concrete-framed, condominium project located in Calvert County, MD, overlooking the Chesapeake Bay. This high profile project is a Tidewater Homes development.

This building structure is approximately 140,000 SF with 7 floors of residential units and a ground floor reserved for commercial leases. The rooftop is developed for tenant recreational space with a rooftop pool, sun deck, entertainment deck, clubhouse, and scenic overlook.

Interesting structural elements include:

• Eight-story design with an absolute height restriction of 70 feet;
• Large cantilevered balconies;
• Dramatic rooftop feature elements; and
• Three levels where the column grid changes.

Three dimensional finite element modeling was crucial to achieving a workable structural design that accommodated the architectural design-driven cantilevered balconies, rooftop features, and column grid changes. The grid change was a particular challenge to coordinate the retail first floor, the residential second thru seventh floors, and the penthouse eighth floor, while maintaining the required floor-to-floor height and keeping the roof slab below 70 feet.

Jefferson at Carlyle Mill

Carlyle Mill is a multifamily apartment community located in Alexandria, VA. The property, which was designed to approximate the look and feel of an old fashioned mill, is a development of Jefferson Properties, Inc. (JPI).

The 9 apartment buildings contain a total of 315 units. They are each 4-stories tall and range from 9,000 to 17,000 SF. The apartment buildings are designed with the following attributes:

• Conventional spread footings and concrete slab on grade foundation;
• Wood floor and walls framing; and
• Pre-engineered wood trusses for the roof.

The apartment buildings are arranged into 2 clusters. Each cluster is attached by breezeways to its own garage. The two concrete garages are 5-story open parking structures. Each garage is approximately 100,000 SF.

The community's clubhouse was built integral with of one of the apartment buildings and contains an exercise room, business center, and multi-purpose room.