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前言为了弄清大直径桩的承台座板的力学性能及其剪切破坏性状,并就承台的剪切提出合理的设计方法,日本国铁从1979年开始,便着眼于剪切跨高比,主钢筋率、有效高度和抗剪钢筋量等方面,制作了具备各种因素的缩尺模型,从事实验研究。该项研究的目的,是要经过实验和分析,提出根数少的大直径桩所用承台的合理设计方法。
Preface In order to find out the mechanical properties and the shear failure characteristics of the base plate of the large diameter pile, and to put forward a reasonable design method for the shear of the cap, Japan Railways started from 1979, focusing on shear span ratio , The main steel rate, the effective height and the amount of steel reinforcement and other aspects, produced a scale model with various factors, engaged in experimental research. The purpose of this study is to conduct experiments and analyzes to propose a reasonable design method for the caps used for large diameter piles with a small number of roots.