混凝土二向应力强度计算及特性分析  

Strength and behavior of concrete under biaxisl stresses

作　　者：钱春[1] 钱在兹[1] 

机构地区：[1]浙江大学土木系

出　　处：《浙江大学学报（自然科学版）》1996年第6期642-651,共10页

基　　金：国家自然科学基金

摘　　要：混凝土二向受力是钢筋混凝上结构计算分析中经常遇到的关键问题，其中二向受压应力强度最为重要．本文在分析椭圆抛物面强度准则及综合许多试验成果的基础上，求出二向应力所有三种状态的强度判别分式，能将多种试验研究结果及所归纳的经验公式统一于一个判别公式之中。The strength of concrete under biaxial stresses, especially the biaxial compressivestrength,whicl is often used as a very inportant parameter in the theory of reinforced concrete structures,is a key factor for nonlinar analysis of structures. On the basis of analyzingelliptically parabolic failure surface and summing uk the test results at home and abroad theconcrete strength criterion for biaxial stresses under three states (compression- Compression, compressin-tension, tensin-tension) has been proposed. And various experimentalformulas which many scholars have drawn from numerous tests may be united into onestrength criterion. Therefore the formulas presented in this paper have the general significance in the strength theory of concrete in biaxial loading

关 键 词：混凝土 二向应力 强度 

分 类 号：TU528.01[建筑科学—建筑技术科学]