型钢混凝土剪力墙轴压比计算及其限值研究
|
摘要
型钢混凝土剪力墙构件具有良好的抗震性能,已在高层和超高层建筑中得以广泛应用。然而我国规范中,对这种结构的轴压比计算方法及限值问题没有给出针对性的条文,在工程实践中,设计人员只能套用普通混凝土剪力墙的相关规定,限制了这种新型结构的推广。本文通过ANSYS程序分析了若干在轴向压力作用下的型钢混凝土剪力墙构件,得到了墙底截面处型钢与混凝土的应力分布情况,从而推导出型钢混凝土剪力墙构件的轴压比计算公式;另外,通过构件低周反复加载试验与计算机数值仿真技术相结合的方法,分析了型钢混凝土剪力墙构件的轴压比限值问题,并提出了设计建议。
Steel reinforced concrete walls have been applied to some high-rise and super high-rise buildings because of its excellent seismic property.Unfortunately,there is no related code involving axial compression ratio calculation and limit value for SRC walls.This restricts the application of this structure significantly.In this article,the stress of structural steel and concrete at the bottom of SRC walls were analyzed with the program ANSYS,then on this basis,the formula for calculating the axial compression ratio was deduced.In addition,on the basis of experiment of SRC walls,with the help of program CANNY,the limit value of axial compression ratio of SRC wall was analyzed and proposed for seismic design.
Steel reinforced concrete walls have been applied to some high-rise and super high-rise buildings because of its excellent seismic property.Unfortunately,there is no related code involving axial compression ratio calculation and limit value for SRC walls.This restricts the application of this structure significantly.In this article,the stress of structural steel and concrete at the bottom of SRC walls were analyzed with the program ANSYS,then on this basis,the formula for calculating the axial compression ratio was deduced.In addition,on the basis of experiment of SRC walls,with the help of program CANNY,the limit value of axial compression ratio of SRC wall was analyzed and proposed for seismic design.
引文
[1]陈丽华,李爱群,杜德润.型钢混凝土柱的界限破坏和轴压比限值[J].工程抗震,2004,(4):32-34.
[2]JG J3-2002,中国建设部行业标准:高层建筑混凝土结构技术规程[S].
[3]JG J138-2001,中国建设部行业标准:型钢混凝土组合结构技术规程[S].
[4]YB9082-97,中国冶金部行业标准:钢骨混凝土结构设计规程[S].
[5]日本建筑协会.钢骨钢筋混凝土结构计算标准及解说[M].冯乃谦,叶列平等译.北京:能源出版社,1998.
[6]李康宁.结构三维弹塑性分析方法及其在建筑物震害中的应用[J].建筑结构,2001,(3):53-61.
[7]Canny99 Techn icalManual[Z].Canny Consu ltants Pte Ltd,1996.
[8]吕西林,董宇光,丁子文.截面中部配置型钢的混凝土剪力墙抗震性能试验研究[J].地震工程与工程振动,2006,(6):101-107.
[2]JG J3-2002,中国建设部行业标准:高层建筑混凝土结构技术规程[S].
[3]JG J138-2001,中国建设部行业标准:型钢混凝土组合结构技术规程[S].
[4]YB9082-97,中国冶金部行业标准:钢骨混凝土结构设计规程[S].
[5]日本建筑协会.钢骨钢筋混凝土结构计算标准及解说[M].冯乃谦,叶列平等译.北京:能源出版社,1998.
[6]李康宁.结构三维弹塑性分析方法及其在建筑物震害中的应用[J].建筑结构,2001,(3):53-61.
[7]Canny99 Techn icalManual[Z].Canny Consu ltants Pte Ltd,1996.
[8]吕西林,董宇光,丁子文.截面中部配置型钢的混凝土剪力墙抗震性能试验研究[J].地震工程与工程振动,2006,(6):101-107.
版权所有：© 2023 中国地质图书馆 中国地质调查局地学文献中心