混凝土强度对异形柱下扩展基础冲切性能影响研究  

The Influence of Concrete Strength on Punching Shear Capacity of the Spread Footings Foundation of Special Columns

作　　者：徐秀凤 孔子昂 XU Xiu-feng;KONG Zi-ang(Qingdao Huanghai University,Qingdao 266427,China;Qingdao Greentown Architectural Design Co.Ltd.,Qingdao 266071,China)

机构地区：[1]青岛黄海学院,青岛266427 [2]青岛绿城建筑设计有限公司,青岛266071

出　　处：《工程建设与设计》2018年第19期56-58,共3页Construction & Design for Engineering

基　　金：山东省高等学校科技计划项目(J16LG53)

摘　　要：采用MSC.Marc有限元软件研究了混凝土强度对L型、T型、十字型柱下扩展基础冲切性能的影响,结果表明混凝土强度较高的基础板较先出现裂缝,但其冲切承载力高于低混凝土强度基础板。根据模拟结果提出异形柱下扩展基础的冲切承载力计算公式,此研究成果可为工程设计提供参考。The influence o fconcrete strength on punching shear capacity o f the spread footings foundation with L,T and cross shape column were simulated by the finite software MSC.Marc. Simulation results show that cracks appear first on the foundation slab with high strength of concrete, but the punching shear capacity is higher than low concrete strength foundation slab. According to the simulation results, the calculation formula of punching shear capacity of the spread footings foundation with special columns is given. The research achievements can provide reference for engineering design.

关 键 词：异形柱 冲切承载力 MSC.Marc 混凝土强度 

分 类 号：TU470[建筑科学—结构工程]