钢筋混凝土异形柱下独立基础验算程序研究  

Study on checking program of independent foundation under RC specially shaped columns

作　　者：孔子昂 徐秀凤 任传尧 贾海涛 王正云 周强 KONG Zi′ang;XU Xiufeng;REN Chuanyao;JIA Haitao;WANG Zhengyun;ZHOU Qiang(Qingdao Branch of Zhejiang Green City Architectural Design Co.,Ltd.,Qingdao 266071,China;Architectural Engineering Institute,Qingdao Huanghai University,Qingdao 266427,China;Qingdao Jiedi Architectural Design Co.,Ltd.,Qingdao 266071,China)

机构地区：[1]浙江绿城建筑设计有限公司青岛分公司,青岛266071 [2]青岛黄海学院建筑工程学院,青岛266427 [3]青岛杰地建筑设计有限公司,青岛266071

出　　处：《建筑结构》2021年第8期119-126,共8页Building Structure

基　　金：山东省高等学校科技计划项目(J16LG53)。

摘　　要：为有效解决现有结构设计软件对异形柱下独立基础设计的不足,结合中国规范《建筑地基基础设计规范》(GB 50007—2011)及美国规范ACI 318-08的相关规定,采用AutoLISP语言开发了一种可对L形、T形、十字形、Z形柱下独立基础进行冲切及剪切强度验算的程序,此程序可与AutoCAD软件进行窗口交互,并在对基础验算后生成计算书。详细介绍了此程序所采用的设计方法和设计流程,以及当基础在双向受弯作用下基底存在零应力区时基底反力的计算方法。数值计算结果表明,当基础两个方向偏心距比的平方和小于等于0.046 9时,零应力区面积一定满足《建筑抗震设计规范》(GB 50011—2010)规定。最后,采用此程序、理正工具箱(7.0PB5版)、YJK(1.9.3版)、等面积法、美国规范ACI 318-08法对L形、T形、十字形、Z异形柱下独立基础进行了对比计算。结果表明,此程序适用范围广,计算结果合理,可保证基础设计安全可靠。In order to solve the shortage of the existing structural design software in independent foundation design under specially shaped column, according to relevant regulations of Chinese code Building foundation design code(GB 50007—2011) and American code ACI 318-08, a program for checking the punching and shearing strength of the independent foundation under L-shaped, T-shaped, cross-shaped and Z-shaped specially shaped columns was developed by using AutoLISP language. The program can be window interaction with AutoCAD software and generate calculation result files after checking. The design method and design flow of the program, and the calculation method of the foundation reaction when the foundation has zero stress zone under bidirectional bending were introduced in detail. The numerical calculation results show that when the sum of the squares of the eccentricity ratios in two directions of the foundation is less than or equal to 0.046 9, the area of the zero stress zone must meet the requirements of the Code for seismic design of buildings(GB 50011—2010). Finally, the program, Lizheng Toolbox(version 7.0 PB5), YJK(version 1.9.3), equal area method, American code ACI 318-08 method were used to calculate the independent foundation under L-shaped, T-shaped, cross-shaped and Z-shaped specially shaped columns. The results show that the program has a wide application range and the calculation results are reasonable, which can ensure the safety and reliability of the foundation design.

关 键 词：异形柱 独立基础 AutoLISP软件 冲切验算 剪切验算 零应力区 验算程序 

分 类 号：TU473[建筑科学—结构工程]