砌体墙转动变形现象及其对抗震性能的影响综述
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作者单位:

1.中国建筑科学研究院有限公司;2.北京交通大学

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TU362

基金项目:

国家自然科学基金(51778594)资助项目


Rotational deformation of masonry walls and its influence on seismic performance
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1.China Academy of Building Research;2.Beijing Jiaotong University

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    摘要:

    为了解砌体墙破坏过程中的转动现象及转动变形对砌体墙抗震性能的影响,查阅国内外砌体墙抗震试验相关的文献资料,对普通砌体墙、设置构造柱砌体墙、加固砌体墙等在试验过程中的转动现象进行提炼,综述不同试件设计、受力条件、加固方式等因素下转动变形对砌体墙破坏模式的影响,探讨转动变形对砌体墙抗震性能的影响规律。结果表明:转动现象在砌体墙受力过程中普遍存在,甚至出现转动变形控制的破坏现象;转动变形降低了砌体墙承载力及等效抗侧刚度,发生转动破坏时砌体墙变形能力有所提高,为后续研究转动变形影响下的砌体结构抗侧刚度、承载力计算方法等提供参考。目前砌体墙抗震试验文献资料普遍缺乏关于转动现象的描述,但并非没有转动变形的出现,后续开展的相关研究工作中,建议对砌体墙转动变形现象及其对抗震性能的影响予以重视。

    Abstract:

    In order to understand the rotation phenomenon in the failure process of masonry wall and the influence of rotation deformation on the seismic performance of masonry wall, referring to the literature related to the seismic test of masonry wall at home and abroad, the rotation phenomena of ordinary masonry wall, masonry wall with constructional column and reinforced masonry wall in the test process are extracted, and the rotation deformation under different specimen design, stress conditions, reinforcement methods and other factors are summarized The influence of rotational deformation on the seismic performance of masonry wall is discussed. The results show that: rotation phenomenon is common in the process of masonry wall stress, and even appears the failure phenomenon of rotation deformation control; rotation deformation reduces the bearing capacity and equivalent lateral stiffness of masonry wall, and the deformation capacity of masonry wall is improved when rotation failure occurs, which provides reference for the subsequent study of masonry structure lateral stiffness and bearing capacity calculation method under the influence of rotation deformation. At present, the literature of masonry wall seismic test generally lacks the description of rotation phenomenon, but it is not without rotation deformation. In the follow-up research work, it is suggested to pay attention to the rotation deformation phenomenon of masonry wall and its impact on seismic performance.

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  • 收稿日期:2021-02-24
  • 最后修改日期:2021-06-22
  • 录用日期:2021-07-20
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