| 爆破振动作用下砌体结构加固前后动力分析 |
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| 引用本文： | 杨浩博,刘杰,马飞跃.爆破振动作用下砌体结构加固前后动力分析[J].兰州工业高等专科学校学报,2013(3):36-40. |
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| 作者姓名： | 杨浩博 刘杰 马飞跃 |
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| 作者单位： | 合肥工业大学土木与水利工程学院,安徽合肥230009 |
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| 基金项目： | 合肥工业大学重大项目预研基金（2012HGZY0024）;中铁四局科研基金（12-126） |
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| 摘 要： | 采用等效体积单元法对采用外支脚手架方法加固的砌体结构在加固前、后抵抗地铁开挖过程中产生的爆破振动荷载的动力性能进行分析.通过分别建立加固前、后结构的模型并进行时程分析,对比顶点侧向位移和墙体的应力,得出采用外支脚手架的加固方法分担了墙体等构件的水平荷载,减小了结构的变形,避免了古建筑被损坏.为今后砌体古建筑的数值模拟和加固提供技术支持以及城市建设过程中由于地铁开挖所产生爆破振动对古建筑的影响提供分析实例.
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| 关 键 词： | 等效体积单元法 爆破荷载 砌体结构 外支脚手架 动力分析 |
Dynamic Analysis of Unreinforced and Reinforced Masonry Structure under the Blasting Vibration Effect |
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| YANG Hao-bo,LIU Jie,MA Fei-yue.Dynamic Analysis of Unreinforced and Reinforced Masonry Structure under the Blasting Vibration Effect[J].Journal of Lanzhou Higher Polytechnical College,2013(3):36-40. |
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| Authors: | YANG Hao-bo LIU Jie MA Fei-yue |
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| Affiliation: | (School of Civil and Hydraulic Engineering, Hefei University of Technology, Hefei 230009, China) |
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| Abstract: | By using the method of representative volume element, the masonry structures dynamic quality of the blasting vibration effect before/after strengthened by scaffold during the process of constructing subway, is analyzed in this paper. By establishing the model of reinforced and unreinforced structure and comparing the points position and stress level, we get a result that method of using outside scaffold can reduce load of wall and distorof structure, and furthermore avoid damage on old buildings, provide technique support to numerical simulation and examples to analysis of blasting vibration effect |
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| Keywords: | the method of representative volume element blasting load masonry structure scaffold dynamic analysis |
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