采空区地震耦合作用下碳纤维加固框架结构振动台试验研究

来源 :建筑结构 | 被引量 : 0次 | 上传用户：jweblogicdownload

【摘要】

：

为了探究采空区地震耦合作用下碳纤维加固对框架结构的抗震、抗倾斜能力的影响,设计了三种工况,分别对应框架结构倾斜2,4,6mm/m。基于结构动力学和相似理论,制作了缩尺比为1/10的框架结构模型,并用碳纤维对其梁端和柱端加固。通过对未加固结构和加固结构进行振动台试验,分别对结构的动力特性、地震反应等情况进行对比分析研究。结果表明:碳纤维加固有效地约束了结构的变形,使结构层间位移、层间位移角及顶点位移明显减小,结构的延性得到优化;碳纤维加固提高了结构的整体刚度和抗侧能力,延缓了刚度的退化,提高了结构的抗震、抗

【作者】

：

刘书贤王帅路沙沙刘少栋

【机构】

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辽宁工程技术大学土木工程学院

【出处】

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建筑结构

【发表日期】

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2021年11期

【关键词】

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碳纤维加固框架结构振动台试验采空区抗震抗倾斜

【基金项目】

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国家自然科学基金(51474045)。

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采空区地震耦合作用下碳纤维加固框架结构振动台试验研究

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