钢筋混凝土多高层建筑结构在地震作用下的割线刚度分析法
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摘要
基于性能/位移的抗震设计,采用振型分解反应谱法进行抗震分析,并根据钢筋混凝土框架及抗震墙模型的试验数据,确定各变形阶段框架及抗震墙的割线刚度,分析了多高层建筑结构侧移的成分,以及引起震害的侧移。将不同变形阶段框架及抗震墙的割线刚度、目标位移的控制值与引起震害的侧移值相联系,对钢筋混凝土多高层建筑结构进行分析。预估结构遭遇本地区多遇地震、设防烈度地震及罕遇地震时的弹塑性变形和弹塑性内力的重分布,以便了解和把握地震时结构的行为。为基于性能/位移的抗震设计方法,提供了新的分析途径。
Performance/displacement-based aseismic design, that the mode of vibration resolved seismic response spectrm approach is used to carry on the aseismic analysis of building structures, according to the existing experimental tested data of the R. C. frames and aseismic walls models, hence, the secant stiffness of frames and aseismic walls at different deformation stages are determined, the composition of lateral displacements of R. C. high-rise building structures, as well as, the lateral displacements causing seismic damage are analyzed. Getting in touch with the secant stiffness of frames and aseismic walls at different deformetion stages, the control values of target displacements and the volues of lateral displacements causing seismic damage, then, the analysis of R. C. high-rise building structures is carried on. Further, the predicting estimation of structural elas-to-plastic deformation and elasto-plastic redistribution of internal forces, which are hit by localized building structures, at the time of frequent earthquate, fortified intensity earthquake and rarely earthquake respectively, should be made, so that the behavior of the structures at the time of earthquake can be understood and grasped. A new analysis way is provided for perfor-mace/displacement-based aseismic design.
Performance/displacement-based aseismic design, that the mode of vibration resolved seismic response spectrm approach is used to carry on the aseismic analysis of building structures, according to the existing experimental tested data of the R. C. frames and aseismic walls models, hence, the secant stiffness of frames and aseismic walls at different deformation stages are determined, the composition of lateral displacements of R. C. high-rise building structures, as well as, the lateral displacements causing seismic damage are analyzed. Getting in touch with the secant stiffness of frames and aseismic walls at different deformetion stages, the control values of target displacements and the volues of lateral displacements causing seismic damage, then, the analysis of R. C. high-rise building structures is carried on. Further, the predicting estimation of structural elas-to-plastic deformation and elasto-plastic redistribution of internal forces, which are hit by localized building structures, at the time of frequent earthquate, fortified intensity earthquake and rarely earthquake respectively, should be made, so that the behavior of the structures at the time of earthquake can be understood and grasped. A new analysis way is provided for perfor-mace/displacement-based aseismic design.
引文
[1] 钱稼茹,罗文斌.建筑结构基于位移的抗震设计[J].建筑结构,2001,31(4) :3～6
[2] 冯世平,翁义军,沈聚敏.周期反复荷载下钢筋混凝土框架的试验研究和理论分析[R].清华大学结构工程研究所科学研究报告,1985
[3] 别所佐登志,八坂厚彦,福岛稔,宫川惠三.RC造2 層 骨组 (?)驗 解析[A].日本建筑学术讲演梗概集[C],1974． 10
[4] 孙金墀,关启勋.钢筋混凝土有边框剪力墙的强度与变形性能[J].建筑结构学报,1988,9(6) :17～29
[5] 小池健仁.耐震壁--厶连成效果 研究( )[R].大林组技术研究所报,No.18,1979
[6] T. Paulay, M. J. N. Priestley, A. J. Synge . Ductility in earthquake resisting squat shear-walls [J] . Journal ACI, 1982, 79(4) : 257-269
[7] 刘大海,杨翠如,钟锡根编著.高层建筑结构抗震设计[M].北京:中国建筑工业出版社,1993
[8] 忻鼎康,胡绍隆,蒋利学等.超高层混凝土结构的层间变形限值[J].建筑结构学报2000,21(3) :10～15
[9] GB 50011-2001建筑抗震设计规范[S].北京:中国建筑工业出版社,2001
[2] 冯世平,翁义军,沈聚敏.周期反复荷载下钢筋混凝土框架的试验研究和理论分析[R].清华大学结构工程研究所科学研究报告,1985
[3] 别所佐登志,八坂厚彦,福岛稔,宫川惠三.RC造2 層 骨组 (?)驗 解析[A].日本建筑学术讲演梗概集[C],1974． 10
[4] 孙金墀,关启勋.钢筋混凝土有边框剪力墙的强度与变形性能[J].建筑结构学报,1988,9(6) :17～29
[5] 小池健仁.耐震壁--厶连成效果 研究( )[R].大林组技术研究所报,No.18,1979
[6] T. Paulay, M. J. N. Priestley, A. J. Synge . Ductility in earthquake resisting squat shear-walls [J] . Journal ACI, 1982, 79(4) : 257-269
[7] 刘大海,杨翠如,钟锡根编著.高层建筑结构抗震设计[M].北京:中国建筑工业出版社,1993
[8] 忻鼎康,胡绍隆,蒋利学等.超高层混凝土结构的层间变形限值[J].建筑结构学报2000,21(3) :10～15
[9] GB 50011-2001建筑抗震设计规范[S].北京:中国建筑工业出版社,2001
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