What WeDeliver.
Everything you need,
structurally speaking.
Structural Design
Complete structural engineering packages for new construction projects. We design foundations, floor systems, wall systems, roof framing, and lateral load-resisting systems in wood, steel, and concrete.
Structural Analysis
Load calculations, deflection analysis, and code compliance review for existing structures and proposed modifications. We also provide independent peer review of structural documents.
Construction Administration
On-site structural observation, response to contractor RFIs, and review of shop drawings and submittals. We ensure the structure is built in conformance with the construction documents.
Foundation Engineering
Foundation design for new construction, additions, and underpinning of existing structures. We design conventional spread footings, deep foundations, and specialty systems for challenging conditions.
Building Inspections
Structural condition assessments for pre-purchase due diligence, damage investigations, and on-going maintenance & operations. Stamped by a structural engineer.
Historic Renovation & Repair
Structural assessment and repair design for historic masonry, heavy timber, and mixed-construction buildings. We understand how older buildings were built and how to sensitively engineer their repair.
A sample of
our work.
Each project represents a different challenge — use the arrows to browse, and click “See Project Details” to learn more.
Residential Stair Structural Design & Vibration Analysis
Project Details
This project involved in-depth structural analysis for strength, stiffness and dynamic response of a steel framed stair and walkways to help a local artist create an inspiring and dramatic space for the homeowners. The project also included extensive design of structural modifications to the home to create lofted, light filled spaces.
Commercial High Rise Tenant Fit Out and Structural Modifications
Project Details
OAK collaborated with the architect, interior designer, and other design team members to investigate and evaluate building capacity and to detail new structure to modify the arcade area of a downtown high rise on Rittenhouse Square from a pedestrian walkway to an outdoor dining area.
Industrial Equipment Support
Project Details
OAK has worked with several manufacturing facilities and process engineers to design new steel supports and modifications to existing framing to support the installation of new scrubbers and other processing equipment.
Infrastructure
Project Details
This design-build project involved designing modifications to existing concrete tanks at a waste water treatment facility to support processing of industrial waste. The design included watertight concrete foundations and walls following the requirements of ACI 350. OAK used isometric details on the contract documents to demonstrate continuity of waterstops through complex concrete joints. The team iterated rapidly through multiple tank configurations to find the optimal design.
Rooftop Equipment
Project Details
OAK conducted multiple site visits to investigate failing and corroded steel supporting an existing cooling tower in an occupied building. Shoring was designed to support the weight of the towers while repairs were made. OAK also provided specifications for the protection of the steel that met the owner's expectations for service life & cost.
Commercial Building Assessment
Project Details
OAK has been involved in many assessments of commercial buildings to investigate deterioration or explore changes to the structure. OAK can provide repair and reinforcement design so the structure is adequate for the intended use.