水平地震作用下框支剪力墙结构的变形研究
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摘要
对工程结构中常用的底部为多层大空间的框支剪力墙结构采用分区混合法,进行水平地震作用下结构的变形研究。将框支剪力墙结构分成转换层上部剪力墙结构和转换层下部框架—剪力墙结构两部分,采用子结构法进行分析。在水平地震作用下,转换层上、下部先分别按剪力墙结构和框架—剪力墙结构的变形曲线公式计算其变形,再充分考虑上下两种不同结构的变形协调性,推导了框支剪力墙结构在水平地震作用下的侧移曲线公式,并给出了方便结构侧移曲线计算的图表。方法简单实用,可用于地震区高层建筑结构的初步设计。
Shear wall structure supported on frame-shear wall structure is used frequently in civil engineering.Based on the zonal mixed method,the distortion of shear wall structure supported on frame under earthquake actions is researched in this paper.The whole structure can be divided into two parts which are shear wall structure above transfer story and frame-shear wall structure under transfer story,and can be analyzed in substructure method.Under earthquake actions,the distortions of shear wall structure above transfer story and frame-shear wall structure under transfer story can be calculated by their intrinsic horizontal displacement formulas respectively.Considering the harmony of distortions of the two divided structures,the horizontal displacement formulas of whole structure is deduced strictly,and some figures of the horizontal displacement are given.This method is proved that it is accurate and convenient enough for use when tall buildings are designed in earthquake zone during the preliminary design.
Shear wall structure supported on frame-shear wall structure is used frequently in civil engineering.Based on the zonal mixed method,the distortion of shear wall structure supported on frame under earthquake actions is researched in this paper.The whole structure can be divided into two parts which are shear wall structure above transfer story and frame-shear wall structure under transfer story,and can be analyzed in substructure method.Under earthquake actions,the distortions of shear wall structure above transfer story and frame-shear wall structure under transfer story can be calculated by their intrinsic horizontal displacement formulas respectively.Considering the harmony of distortions of the two divided structures,the horizontal displacement formulas of whole structure is deduced strictly,and some figures of the horizontal displacement are given.This method is proved that it is accurate and convenient enough for use when tall buildings are designed in earthquake zone during the preliminary design.
引文
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[3]GB500112001,建筑抗震设计规范[S].
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[5]JGJ32002,高层建筑混凝土结构技术规程[S].
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[8]徐培福,王翠坤,郝锐坤,等.转换层设置高度对框支剪力墙结构抗震性能的影响[J].建筑结构,2000,(1):38-42.
[2]包世华,方鄂华.高层建筑结构设计[M].北京:清华大学出版社,1985.
[3]GB500112001,建筑抗震设计规范[S].
[4]孟焕陵,沈蒲生.倒三角形荷载作用下框剪结构中剪力墙的合理数量[J].四川建筑,2004,24(2):55-57.
[5]JGJ32002,高层建筑混凝土结构技术规程[S].
[6]韦鹏飞,王全凤.多因素对剪力墙最优刚度影响的综合分析[J].工程力学,1996,13(2):61-68.
[7]李君如,詹肖兰,欧阳炎.高层建筑结构分析[M].北京:人民交通出版社,1990.
[8]徐培福,王翠坤,郝锐坤,等.转换层设置高度对框支剪力墙结构抗震性能的影响[J].建筑结构,2000,(1):38-42.
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