某高层建筑框架—剪力墙结构框架部分地震剪力的分析
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摘要
对含扭转不规则的某高层建筑框架—剪力墙结构的动力特性、框架部分分配地震剪力规律的分析,结果表明,多数楼层框架部分分配的地震剪力有一个相对稳定的数值,但少数楼层框架部分分配的地震剪力变化幅度较大,各层框架柱与框架梁分配的剪力、弯矩基本上在同一数量级上。从结构设计的合理性以及"强柱弱梁"的抗震概念设计考虑,建议框架梁地震内力调整可适当放松,并给出相应的调整方法。
Based on a practical tall frame-wall structure with torsion irregularity,dynamic properties and rules of the seismic shear force resisted by the frame-part of any story are analyzed.The results show that the seismic shear forces resisted by the frame-part of most stories have the relatively stable value,but several stories have the evidently variation value,and on the whole the seismic shear force of frame-columns of any story is in the same level as the seismic moment of frame-beams.From the rationality of structure design and the seismic design concept of strong columns and weak beams,the advice is that the adjustment of seismic interior force of frame-beam may be properly decreased,and the relevant adjusting method is presented.
Based on a practical tall frame-wall structure with torsion irregularity,dynamic properties and rules of the seismic shear force resisted by the frame-part of any story are analyzed.The results show that the seismic shear forces resisted by the frame-part of most stories have the relatively stable value,but several stories have the evidently variation value,and on the whole the seismic shear force of frame-columns of any story is in the same level as the seismic moment of frame-beams.From the rationality of structure design and the seismic design concept of strong columns and weak beams,the advice is that the adjustment of seismic interior force of frame-beam may be properly decreased,and the relevant adjusting method is presented.
引文
[1]GB50011-2001,建筑抗震设计规范[S].
[2]JGJ3-2002,高层建筑混凝土结构技术规程[S].
[3]方鄂华,程懋堃.关于规程中对扭转不规则控制方法的讨论[J].建筑结构,2005,(11).
[4]方鄂华,编著.高层建筑结构设计[M].北京:地震出版社,1992.
[2]JGJ3-2002,高层建筑混凝土结构技术规程[S].
[3]方鄂华,程懋堃.关于规程中对扭转不规则控制方法的讨论[J].建筑结构,2005,(11).
[4]方鄂华,编著.高层建筑结构设计[M].北京:地震出版社,1992.
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