Nonbuilding and Special Structures
In the design of marine structures there are numerous forces acting on the structure in addition to those forces normally addressed by building structural design. The practicing structural engineer has many standards to refer to, however one of the most recognizable standards for load determination requires supplement standards to provide the design engineer with an accurate assessment of the loads and forces being applied to the marine structure at various conditions.
ASCE 7-16, and its predecessors, provide comprehensive load information for the design of traditional structures, however when this standard is applied to unique structures such at those found in the marine environment, the guidance becomes subjective. As an example, what is the risk category to be applied to a pier or a dry dock? How are ice and wind loads considered on a pier? This paper will discuss the application of ASCE 7-16 loads, risk categories, load combinations and ASD/LRFD practices to a variety of marine structures, including piers, wharves, bulkheads, drydocks, dolphins and coastal structures in an attempt to provide clarity to engineers practicing in the marine environment. This paper will be beneficial to structural engineers working for ports, shipyards, military installations and other structures that are subject to winds, wave and current forces.
This study will also contrast various published criteria from DoD, PIANC, ASCE and other sources to provide clarity between these sources. The desired outcome of this paper will be to provide the structural engineer a thorough review of the applicable loads from ASCE 7-16 and the resources to determine the supplemental loads that are applied to marine structures.