反复荷载作用下矩形中空钢管混凝土柱的滞回性能研究
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摘要
首先建立钢管与核心混凝土界面的粘结-滑移滞回模型、考虑包辛格效应的钢材单轴滞回模型和考虑矩形钢管约束效应后内填混凝土的单轴应力-应变滞回模型。在截面纤维模型的基础上,建立考虑界面粘结-滑移的矩形钢管混凝土柱分析模型,用Fortran语言编制相应的全过程分析程序。考虑不同的空心率因素,对4个矩形中空钢管混凝土试件进行数值模拟计算,并对荷载-位移滞回关系进行初步的理论分析。
The bond-slip hysteretic models of the interface of CFRT was put forward.The hysteretic material models of in-filled concrete and steel considering Bauschinger effect were built.Based on section fiber model,the analytical model for CFRT columns was also constructed and the hysteretic full range analysis program for CFRT columns considering bond-slip effect of the interface was accomplished.Considering different hollow ratios four concrete-filled rectangular steel tubular specimens were numerically simulated,and the load-deformation hysteretic behavior is analysed theoretically.
The bond-slip hysteretic models of the interface of CFRT was put forward.The hysteretic material models of in-filled concrete and steel considering Bauschinger effect were built.Based on section fiber model,the analytical model for CFRT columns was also constructed and the hysteretic full range analysis program for CFRT columns considering bond-slip effect of the interface was accomplished.Considering different hollow ratios four concrete-filled rectangular steel tubular specimens were numerically simulated,and the load-deformation hysteretic behavior is analysed theoretically.
引文
[1]韩林海.钢管混凝土结构[M].北京:科学出版社,2007.
[2]陶忠,韩林海.中空夹层钢管混凝土的研究进展[J].哈尔滨工业大学学报,2003(增刊):144-146.
[3]顾祥林,孙飞飞.混凝土结构的计算机仿真[M].上海:同济大学出版社,2002.
[4]苏献祥,闫月梅,李超华.反复荷载作用下矩形钢管混凝土柱的滞回性能研究[J].世界地震工程,2009(1):138-142.
[5]苏献祥.矩形钢管混凝土柱在循环荷载作用下的性能研究[D].西安:西安科技大学,2009.
[2]陶忠,韩林海.中空夹层钢管混凝土的研究进展[J].哈尔滨工业大学学报,2003(增刊):144-146.
[3]顾祥林,孙飞飞.混凝土结构的计算机仿真[M].上海:同济大学出版社,2002.
[4]苏献祥,闫月梅,李超华.反复荷载作用下矩形钢管混凝土柱的滞回性能研究[J].世界地震工程,2009(1):138-142.
[5]苏献祥.矩形钢管混凝土柱在循环荷载作用下的性能研究[D].西安:西安科技大学,2009.
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