Abstract
Grid-purlin system composed of RHS members are known to be effective to prevent buckling of the welded beams. In this paper, the joint strength of triangulation isogrid purlin is verified by the 2/3 scale experiment and the I-section beam restrained with isogrid purlin are studied. The ductility of the beams is analyzed using detailed FEM analyses. Their results are compared with the LSD’s standard.
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