确定桩筏基础筏板厚度的简化计算方法  

A Simplified Method to Determinethe Thickness of Piled Raft

作　　者：楼晓明[1] 芮晓玲 于勇 陈标 

机构地区：[1]同济大学,上海200092 [2]浦东新区城建局,上海200031

出　　处：《结构工程师》2003年第1期35-38,74,共5页Structural Engineers

摘　　要：利用筏板局部弯曲和整体弯曲的简化计算公式 ,以局部弯曲与整体弯曲之和作为筏板基础承受的最大弯矩。如果通过合理布桩可消除冲剪破坏 ,在给定配筋率的情况下 ,即可根据最大弯矩确定筏板的厚度。通过与有限元法及浦东高层桩筏基础实例进行比较 。A simplified method is given for calculating the maximum bending moment of piled raft which is considered to consist of local bending moment and global bending moment. If pile layout is reasonable to remove the possibility of punching failure ,the thickness of piled raft can be simply determined under a certain reinforcement ratio. It is proved reasonable by comparison with FEM method and project examples in Pudong new area.

关 键 词：厚度 桩筏基础 局部弯曲 整体弯曲 筏板 高层建筑 配筋率 

分 类 号：TU471.15[建筑科学—结构工程]