【作者】 赵晖；

【导师】 白羽；

【作者基本信息】 昆明理工大学 ， 防灾减灾工程及防护工程， 2002， 硕士

【摘要】 本文采用弹塑性时程分析方法及静力弹塑性分析方法对预应力板(梁)柱体系抗震能力进行了评定，较系统的探讨了该体系在地震作用下的动力反应及破坏机制，旨在促进该体系在地震区的推广和使用。 首先介绍了预应力板(梁)柱体系的基本构成及其特点，总结国内外对该体系的研究现状，详细介绍了云南省工程抗震研究所对该体系进行的振动台试验研究情况。 然后，建立了有限元三维实体单元模型及平面杆单元模型，对其进行了Push-over分析，并将所得的底部剪力一顶点位移曲线转化为拟加速度一周期曲线，与规范反应谱进行对比，以此评定该体系的抗震能力。 接着，采用Newmark直接积分法对杆单元模型进行了地震波作用下的弹塑性时程分析。选取了EL-Centro波等四条不同震级、不同震中距及频谱成份不同的地震波作为输入波，对其进行了反应谱分析，计算结构在其作用下的动力反应，并与试验结果及反应谱分析结果进行对比。同时，对求解过程中影响解的精度与稳定性的因素进行了讨论。 最后，在上述研究的基础上对改进的预应力板(梁)柱体系的抗震能力作出了评定，对需要改进之处及今后须进一步开展的研究工作提出了建议。更多还原

【Abstract】 This paper is concerned with the evaluation of seismic capacity of prefabricated prestressed concrete skeleton structure ( IMS System) .The elasto -plastic time-history analysis and the push-over analysis are performed for this purpose. In order to promote the IMS system’s use in the area of high seismicity, systematically research has been made to study its dynamic response and damage mechanism under horizontal seismic action.Firstly, the constitution and characteristic of IMS system’s is introduced. And the state of art is summarized. Then the shock table test for a l/2.7scale model of the very system performed by the Institute of Yunan Province for Earthquake Engineering Research is presented in detail.Secondly, the push-over analysis is for the three-dimensional solid element model and the plane beam element model. The total shearing force-lateral displacement curve can be obtained from it. And then the total shearing force-lateral displacement curve is converted to pseudo acceleration-period curve and some comparisons are made between the pseudo acceleration-period curve and design response spectrum. So the seismic capacity of this system can be evaluated.The time-history analysis, as another method, is applied. Four records with different earthquake magnitude, epicentral distance and spectrum ingredient are selected as the seismic input. The result of it compared with the result of test and spectrum analysis.Lastly, on the basis of analysis result the conclusion is drawn and the recommendation and perspectives are put forward.更多还原