第一章叉桩结构性质的研究一、前言近年各地应用大直径的长钢管桩制成大斜度的叉桩结构,建造了不少栈桥码头、系船墩和外海码头。叉桩结构的水平刚度大,在水平力作用下稳定性好,特别在大建筑物的抗震设计中,叉桩常是结构中 Chapter One Research on the Properties of Fork Piles I. Introduction In recent years, large-diameter long steel pipe piles have been used to make large-skewed fork-piles. Many trestle piers, mooring piers and offshore piers have been constructed. The horizontal stiffness of the fork pile structure is large, and the stability is good under the horizontal force. Especially in the seismic design of large buildings, the fork pile is often in the structure