卢啸, 查淑敏. 一种新型分缝耗能砌体填充墙的抗震性能试验与有限元分析[J]. 工程力学, 2021, 38(11): 105-113. DOI: 10.6052/j.issn.1000-4750.2020.10.0776
引用本文: 卢啸, 查淑敏. 一种新型分缝耗能砌体填充墙的抗震性能试验与有限元分析[J]. 工程力学, 2021, 38(11): 105-113. DOI: 10.6052/j.issn.1000-4750.2020.10.0776
LU Xiao, ZHA Shu-min. SEISMIC PERFORMANCE TEST AND FINITE ELEMENT ANALYSIS OF A NEW SLOTTED ENERGY DISSIPATION MASONRY INFILL WALL[J]. Engineering Mechanics, 2021, 38(11): 105-113. DOI: 10.6052/j.issn.1000-4750.2020.10.0776
Citation: LU Xiao, ZHA Shu-min. SEISMIC PERFORMANCE TEST AND FINITE ELEMENT ANALYSIS OF A NEW SLOTTED ENERGY DISSIPATION MASONRY INFILL WALL[J]. Engineering Mechanics, 2021, 38(11): 105-113. DOI: 10.6052/j.issn.1000-4750.2020.10.0776

一种新型分缝耗能砌体填充墙的抗震性能试验与有限元分析

SEISMIC PERFORMANCE TEST AND FINITE ELEMENT ANALYSIS OF A NEW SLOTTED ENERGY DISSIPATION MASONRY INFILL WALL

  • 摘要: 震害显示填充墙的破坏不仅会造成严重的经济损失,还会影响建筑的使用功能,阻碍震后的救援工作,因此,增强填充墙的抗震性能对提升建筑结构整体的抗震韧性有重要意义。提出了一种分缝耗能的低损伤砌体填充墙,通过在墙内合理设置竖缝和连接件,来减轻墙体在地震作用下的损伤;开展了足尺分缝耗能填充墙的低周往复加载试验,对其损伤演化机理和滞回特性进行了研究;并建立了分缝耗能填充墙的精细有限元模型,对其滞回性能进行模拟。研究结果表明:该文提出的分缝耗能砌体填充墙有效可行,相比于普通砌体填充墙,变形能力提升了约1.6倍,在相同位移下的损伤程度明显减轻,层间位移角1/200时,分缝耗能填充墙仍处于轻微损伤状态,层间位移角达到1/100时,分缝耗能填充墙处于中等损伤状态。

     

    Abstract: Earthquake disasters showed that the destruction of masonry infill walls not only caused serious economic losses, but also affected building functionality and hindered the rescue after the earthquake. Therefore, enhancing the seismic performance of infill walls is of great significance to improving the overall seismic resilience of buildings. A low-damage slotted energy dissipation masonry infill wall is proposed by reasonably setting vertical gaps and connectors in the wall. Cyclic loading tests of a full-scale slotted energy dissipation infill wall is carried out to study the damage evolution mechanism and hysteresis characteristics. The seismic performance of the slotted energy dissipation infill wall is also simulated by finite element analysis. The results show that the proposed slotted energy dissipation masonry infill wall is effective and feasible. Compared with ordinary masonry infill walls, the deformation capacity is increased by approximately 1.6 times, and the damage degree under the same displacement is significantly reduced. The slotted energy dissipation infill wall only experiences slight damage when the story drift ratio reaches 1/200, and sustains moderate damage when the story drift ratio reaches 1/100.

     

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