二次受力CFRP布加固混凝土矩形柱抗压强度计算方法研究  

Study on calculation method of compressive strength of rectangular concrete columns with CFRP sheets under secondary loading

作　　者：柳泉春[1] 刘瑛[2] 杨晶海[1] 于延东[1] 

机构地区：[1]青岛理工大学土木工程学院,青岛266033 [2]青岛理工大学商学院,青岛266033

出　　处：《青岛理工大学学报》2012年第3期11-17,共7页Journal of Qingdao University of Technology

基　　金：山东省自然科学基金资助项目(ZR2010EM066)

摘　　要：在一次受力下CFRP布加固混凝土矩形柱抗压强度理论公式的基础上,按照叠加原理和强度代换原理推导了二次受力下CFRP布加固混凝土矩形柱抗压强度理论公式,并采用ANSYS软件对CFRP布加固混凝土柱的二次受力性能进行了数值模拟,将试验值与理论值及ANSYS值进行对比,结果基本吻合,证明了理论推导的科学性,为加固工程提供了一定的理论参考.Abstract： On the basis of the compressive strength of rectangular concrete columns with CFRP sheets under first loading, the theoretical formula about compressive strength of rec- tangular concrete columns with CFRP sheets under secondary loading was derived through the superposition principle and strength substitution principle. The performance of the me- chanical properties of rectangular concrete columns with CFRP sheets under secondary load- ing was simulated through ANSYS software. By contrasting the test values, the theoretical value and the ANSYS simulation value, the results were basically consistent, which proves that the theoretical derivation has the scientific nature and provides certain reference for rein- forcement projects.

关 键 词：CFRP布 ANSYS 抗压强度 二次受力 

分 类 号：TU375.1[建筑科学—结构工程]