混凝土(RC/PC)开孔梁抗裂性能与裂缝宽度验算  

Checking Computation of Cracking in RC/PC Beams with Opening

作　　者：刘荣桂[1] 吕志涛[1] 

机构地区：[1]东南大学,南京210096

出　　处：《建筑结构》2001年第1期43-45,共3页Building Structure

基　　金：国家自然科学基金项目 !(5 9338130 )

摘　　要：通过对 10根混凝土 (RC/PC)开孔梁的试验分析 ,详细讨论了混凝土 (RC/PC)开孔梁的开裂特性 ,在此基础上用ADINA非线性有限元程序 (混凝土模式 )对试验结果进行了量化对比分析 ,最后提出了混凝土 (RC/PC)开孔梁抗裂验算公式。计算结果表明 ,所给方法简便、实用 。This paper discusses the characteristics of cracking in RC/PC beams with large openings in details by experimental analysis of 10 samples. Based on analysis of ADINA finite element program (with the model of concrete), we give formulas for calculating the width of cracking in beams with large openings. Calculating results show that the method provided is reliable, convenient, and can be used in engineering designing directly.

关 键 词：混凝土 开孔梁 抗裂 裂缝宽度 计算 

分 类 号：TU370.1[建筑科学—结构工程]