故宫太和殿二层斗拱水平抗震性能试验

发布时间：2018-03-22 16:55

本文选题：太和殿　切入点：二层斗拱　出处：《东南大学学报(自然科学版)》2017年01期 　论文类型：期刊论文

【摘要】：为更好地保护木构古建筑,对故宫太和殿二层斗拱开展了水平低周反复加载试验.制作了斗拱的1∶2缩尺比例模型,分别对其进行横向及纵向加载,研究其抗震参数.结果表明:相对于纵向加载,斗拱沿横向加载时更容易产生构件破坏.各斗拱极限承载力由大到小的顺序为:柱头科横向加载、平身科横向加载、角科加载、平身科纵向加载、柱头科纵向加载;延性系数由大到小的顺序为:柱头科纵向加载、平身科纵向加载、柱头科横向加载、角科加载、平身科横向加载;耗能能力由大到小的顺序为:角科加载、柱头科横向加载、平身科纵向加载、柱头科纵向加载、平身科横向加载;刚度退化程度由重至轻的顺序为:平身科横向加载、柱头科横向加载、角科加载、平身科纵向加载、柱头科纵向加载.太和殿二层斗拱的水平刚度模型可简化为三折线段形式.
[Abstract]:In order to better protect the ancient wooden buildings, the horizontal low-cycle repeated loading tests were carried out on the two-story bucket arch of the Taihe Temple of The Imperial Palace. The 1:2 scale scale model of the bucket arch was made and loaded horizontally and longitudinally. The seismic parameters are studied. The results show that the ultimate bearing capacity of the bucket arch is more easily destroyed when the bucket arch is loaded along the transverse direction than the longitudinal load. The order of ultimate bearing capacity of each bucket arch is as follows: lateral loading of column family, lateral loading of flat body section, loading of angle section, and so on. The order of ductility coefficient from large to small is as follows: longitudinal loading of stigma family, longitudinal loading of flat body family, transverse loading of stigma family, loading of angle family, lateral loading of flat body family; The order of energy dissipation capacity from large to small is: angular loading, lateral loading of stigma, longitudinal loading of flat body, longitudinal loading of stigma, transverse loading of flat body; the order of stiffness degradation from heavy to light is: horizontal loading of flat body, The horizontal stiffness model of the two-story bucket arch of Taihedian can be simplified into a three-fold line segment.
【作者单位】：北京交通大学土木建筑工程学院;故宫博物院;东南大学城市与建筑遗产保护教育部重点实验室;
【基金】：国家自然科学基金优秀青年基金资助项目(51422801);国家自然科学基金资助项目(51178028) 北京市自然科学基金重点资助项目(8151003) 东南大学城市与建筑遗产保护教育部重点实验室开放课题资助项目(KUAL1605A)
【分类号】：TU366.2;TU352.11

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