發(fā)布時(shí)間：2018-08-19 07:42

【摘要】：在增量動(dòng)力分析的基礎(chǔ)上,結(jié)合地震易損性分析,提出了基于增量動(dòng)力分析的超高層混合結(jié)構(gòu)地震易損性分析方法,該方法可以從概率角度定量評(píng)估該類工程結(jié)構(gòu)的抗震性能。以設(shè)計(jì)的某50層超高層混合結(jié)構(gòu)為算例,采用上述方法對(duì)該結(jié)構(gòu)進(jìn)行地震易損性分析,依據(jù)指定不同強(qiáng)度地震作用下各極限狀態(tài)的結(jié)構(gòu)地震易損性概率,評(píng)定該結(jié)構(gòu)的抗震性能。結(jié)果表明:該超高層混合結(jié)構(gòu)在7度多遇地震作用下,處于正常使用和基本可使用狀態(tài);在7度設(shè)防地震作用下,處于基本可使用和修復(fù)后使用狀態(tài);在7度罕遇地震作用下,處于修復(fù)后使用和生命安全狀態(tài)。該結(jié)構(gòu)基本滿足“小震不壞、中震可修、大震不倒”的抗震要求,具有良好的抗震性能。
[Abstract]:On the basis of incremental dynamic analysis and combined with seismic vulnerability analysis, a seismic vulnerability analysis method for super-tall hybrid structures based on incremental dynamic analysis is proposed. This method can quantitatively evaluate the seismic performance of this kind of engineering structures from the point of view of probability. Taking the design of a 50-story super-tall hybrid structure as an example, the seismic vulnerability of the structure is analyzed by using the above method. According to the probability of seismic vulnerability of each limit state of the structure under the specified earthquake intensity, The seismic performance of the structure is evaluated. The results show that the super high-rise hybrid structure is in normal use and basically usable state under the action of 7 degree earthquake; under the action of 7 degree fortification earthquake, it is basically usable and repaired; under the action of 7 degree rare earthquake, the structure is in the state of using and repairing, and under the action of rare earthquake of 7 degree, In post-repair and life safe condition. The structure basically meets the requirements of "small earthquake is not bad, medium earthquake can be repaired, large earthquake can not collapse", and has good seismic performance.
【作者單位】： 中國(guó)地震局工程力學(xué)研究所;中國(guó)地震局地震工程與工程振動(dòng)重點(diǎn)實(shí)驗(yàn)室;廣東省建筑設(shè)計(jì)研究院;
【分類號(hào)】：TU973.14;;TU311.2

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