BEHAVIOUR OF REHABILITATED STRUCTURAL WALLS
BEHAVIOUR OF REHABILITATED STRUCTURAL WALLS
复制标题
修复后的结构墙的性能
DOI：
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发表时间：
2005
期刊：
影响因子：
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通讯作者：
A. Ghobarah
中科院分区：
文献类型：
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作者：
A. Khalil;A. Ghobarah
开展了一项实验计划，旨在确定地震荷载下结构墙失效的原因并研究潜在的修复方案。测试了墙壁塑料铰链区域的大型模型。构建了一种创新的测试装置，可以控制剪切力与弯矩和轴向载荷的比率。控制墙经过测试，在剪切力方面过早失效，再现了现场观察到的失效情况。设计了两种不同的修复方案，使用双轴纤维增强聚合物（FRP）板来改善墙体的性能，以防止剪切破坏。为了提高延展性，墙的端柱元件使用锚固 FRP 进行限制。这两种方案经过测试，证明可以有效提高墙体的抗剪强度、延性和耗能能力。
An experimental program for identifying the causes of failures in structural walls under earthquake loading and investigating potential rehabilitation schemes was undertaken. Large-scale models of the plastic hinge region of the walls were tested. An innovative test setup that provides the possibility of controlling the ratio of the shear force to both bending moment and axial load was constructed. A control wall was tested and failed prematurely in shear reproducing the failure observed in the field. Two different rehabilitation schemes to improve the behaviour of the wall using biaxial fibre reinforced polymer (FRP) sheets were designed to prevent the shear failure. To improve the ductility, the end column elements of the walls were confined using anchored FRP. The two schemes were tested and proved to be effective in increasing shear strength, ductility, and energy dissipation capacity of the walls.