SPRB Wharf Structural Capacity Study

SGH reviewed historical drawings and inspection reports to identify the structural framing for each of the seven wharf segments. Each segment was constructed at a different time with a different configuration, but generally consists of a concrete deck supported on prestressed concrete piles with a concrete sheetpile bulkhead on the water side. Highlights of our assessment include:

• Collaborating with SPRB to determine current loading operations, including berthing and mooring of design vessels and barges
• Recommending nondestructive testing to define geometry of wharf elements
• Developing three-dimensional models of the structures, including the seven marginal wharf segments and the sheetpile bulkhead modeled as shell elements to properly account for soil pressure on the pile-supported decks
• Performing finite element analysis of the structures along with berthing and mooring analyses
• Estimating the capacity of the existing piles
• Preparing a list of demand-to-capacity ratios for all structural components in each wharf segment and defining areas that might require restrictions
• Providing recommendations to SPRB to help them plan their operations as well as future maintenance and upgrades