| 某钢与混凝土混合结构超高层的抗震性能分析——弹塑性时程分析 |
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| 引用本文： | 肖嘉,肖川,程大业.某钢与混凝土混合结构超高层的抗震性能分析——弹塑性时程分析[J].工业建筑,2011(Z1):373-377,358. |
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| 作者姓名： | 肖嘉 肖川 程大业 |
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| 作者单位： | 中国电子工程设计院;中国建筑科学研究院;中冶建筑研究总院有限公司; |
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| 摘 要： | 某框架-核心筒超高层结构,采用钢管混凝土柱、型钢混凝土梁框架及钢筋混凝土核心筒的混合结构形式。弹塑性时程分析表明结构满足规范的"大震不倒"要求,并给出了结构薄弱部位。同时,以此工程为例,通过大量的计算,重点分析了地震波选取、阻尼比取值、钢筋强度等级等因素对计算结果的影响及大震弹性计算与大震弹塑性计算的区别。结果表明,对于超高层结构,地震波持时对结果影响很大,阻尼比改变对结果影响较小,采用HRB500钢筋后结构刚度有所增大,大震弹性和大震弹塑性的位移结果接近。
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| 关 键 词： | 混合结构 弹塑性时程分析 阻尼比 钢筋强度等级 |
THE SEISMIC PERFORMANCE EVALUATION OF AN ULTRA-HIGH-RISE BUILDING MIXED STRUCTURE:ELASTIC-PLASTIC TIME-HISTORY ANALYSIS |
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| Xiao Jia Xiao Chuan Cheng Daye.THE SEISMIC PERFORMANCE EVALUATION OF AN ULTRA-HIGH-RISE BUILDING MIXED STRUCTURE:ELASTIC-PLASTIC TIME-HISTORY ANALYSIS[J].Industrial Construction,2011(Z1):373-377,358. |
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| Authors: | Xiao Jia Xiao Chuan Cheng Daye |
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| Affiliation: | Xiao Jia1 Xiao Chuan2 Cheng Daye3(1.China Electronics Engineering Design Institute,Beijing 100840,China,2.China Acadamy of Building Research,Beijing 100013,3.MCC Central Research Institute of Building and Construction Co.Ltd,Beijing 100088,China) |
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| Abstract: | The building discussed is a frame-tube tall building with circular concrete-filled steel tube column,steel reinforced concrete composite beam and concrete core tube shear wall.Performance in elastic-plastic time-history analysis shows that the goal of collapse prevention under expected rare earthquake is achieved,and the weak place of the building is given.Meanwhile,taking this project as an example,the influence of earthquake wave selections,damping ratio values and steel bar strength classes,also the diff... |
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| Keywords: | mixed structure elastic-plastic time-history analysis damping ratios HRB500 steel bars |
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