The Study on Flexural Capacity of Bolt Connection of Steel Sheet Pile of H + Hat Combination in Experiment

摘要

Steel sheet pile of H + Hat combination is welded by domestic H-type pile and wide Hat-type pile imported from Japan, that is simple structure, excellent flexural stiffness and economically repetitious usage. Because of these advantages, it has extensive application prospect. But in the traditional fillet welding, there is some inconvenience on the stage of first connecting and late repeated using. In order to make some improvement, the experimental way is adopted to study the bolt connection of H + Hat combination steel sheet pile, especially its mechanical properties, bending deformation and the coupling of H-type pile between wide Hat-type pile. The results of this experimental show that the midpoint deflection of steel sheet pile of H + Hat combination, which is connected by the bolt, satisfies the requirement of deformation; with the bolt connection, the coupling of H-type pile between wide Hat-type pile is very good and their micro-strain between each other is also tiny, that can well satisfy the engineering application.