Structural Characteristics and Analysis Simulation of New Core Truss Structure

The possibilities of the truss structure are extended and a new core truss structure (Square Core Truss structure, hereinafter referred to as SCT structure) is proposed. The SCT structure consists of four pairs of diagonal members connected by two panel points, and the structure is stabilized by using deformation restraint member in the space between the panel points. This causes contact problems between the diagonal members and the deformation restraint members, complicating the simulation of the boundary conditions. In this paper, a wooden pedestrian bridge with a span of 8m was designed and fabricated by structural analysis (3D framework analysis). Static loading experiment was conducted on the specimen to confirm the mechanical properties due to contact. The experimental results and the results of contact analysis simulation, reproducing the contact condition using the nonlinear finite element method, are reported.

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