罕遇地震作用下高层框架支撑体系的塑性极限分析
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摘要
针对高层钢筋混凝土框架支撑结构体系,运用结构塑性极限分析原理给出了在水平地震作用下最可能 出现的破坏机构及相应的极限荷载半解析解,根据上限定理求出水平地震作用下一■框架支撑体系各种破坏 机构的最小破坏荷载。再根据刚度分配原则,可计算出整个结构不形成机动体系所能承担的最大水平地震作 用。
The different collapse mechanisms subjected to horizontal earthquakes are obtained for the high-rise braced-frames system, the semi-analytic so1utions are derived by means of plastic analysis for ultimate loads of the structures. The minimum ultimate loads of collapse mechanism are obtained for braced-frames under horizonta1 seismic actions. The maximum horizonta1 seismic ac- tions of a structure in which any of mechanism system is not formed can be further ca1culated based on principle of stiffness distribution.
引文
[1] 王新玲,关罡.强震作用下框架支撑结构体系的破坏机构及其极限荷载[J].世界地震工程,2000,16(2):79-82.
    [2] 邓秀泰,等.框-衍架结构抗震性能试验研究[J].建筑结构学报,1996,14(6):2-10.
    [3] V.kapur and Ashok K.Jain. Seismic Response of Reinforced Concrete Braced Frames[J]. Indian Concrete Journal. SeptRept. l982. 56(9):35 - 38.
    [4] 徐国彬,等译.钢筋混凝土框架塑性阶段的计算[M].北京:中国建筑工业出版社,1988.
    [5]GBJ11—89,建筑设计抗震规范[S].

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