| 村镇建筑砌体结构的动力特性分析 |
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| 引用本文： | 吴韬,王浩,易苗苗,蒋敏,王艳华.村镇建筑砌体结构的动力特性分析[J].西北地震学报,2016,38(6):877-882. |
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| 作者姓名： | 吴韬 王浩 易苗苗 蒋敏 王艳华 |
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| 作者单位： | 安徽新华学院土木与环境工程学院, 安徽 合肥 230088,中钢集团马鞍山矿山研究院有限公司, 安徽 马鞍山 243000,安徽新华学院土木与环境工程学院, 安徽 合肥 230088,蚌埠玻璃工业设计研究院, 安徽 蚌埠 233018,安徽新华学院土木与环境工程学院, 安徽 合肥 230088 |
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| 基金项目： | 国家自然科学基金（51408179）；安徽省高等学校自然科学研究基金重点项目（KJ2014A099）；安徽省高等学校优秀青年人才基金重点项目（2013SQRL098ZD） |
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| 摘 要： | 为探讨村镇建筑中低层砌体结构的动力特性与振动机理,基于农居调查实测的布置及材料性能数据,在ABAQUS软件中建立考虑结构布置、材料强度及有限元网格控制等参数的7个有限元模型方案,对各模型进行结构动力特性分析,并对比分析其振动形态、振型分量及振型周期。分析表明,村镇建筑中按常规布置的砌体结构,其振动特性不利于结构抗震;砌体材料性能劣化在降低结构承载能力的同时还会放大高阶面外振动分量的地震作用,加剧承重墙在地震中发生外闪倒塌的机率;如采取措施实现结构的基本振型为沿横向平动,则其振动特性表明横墙的承重与抗侧能力均可有效发挥,且面外振动的高阶振型被抑制,提高了结构抗震能力;此外,本文还提出ABAQUS对壳单元沿厚度方向的网格控制要求。
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| 关 键 词： | 村镇建筑 砌体结构 动力特性 ABAQUS |
| 收稿时间： | 2015/11/25 0:00:00 |
Dynamic Characteristics of Masonry Structures in Villages and Towns |
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| WU Tao,WANG Hao,YI Miao-miao,JIANG Min and WANG Yan-hua.Dynamic Characteristics of Masonry Structures in Villages and Towns[J].Northwestern Seismological Journal,2016,38(6):877-882. |
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| Authors: | WU Tao WANG Hao YI Miao-miao JIANG Min and WANG Yan-hua |
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| Institution: | College of Civil & Environmental Engineering, Anhui Xinhua University, Hefei 230088, Anhui, China,Sinosteel Maanshan Institute of Mining Research Co., LTD, Maanshan 243000, Anhui, China,College of Civil & Environmental Engineering, Anhui Xinhua University, Hefei 230088, Anhui, China,Bengbu Design & Research Institute for Glass Industry, Bengbu 233018, Auhui, China and College of Civil & Environmental Engineering, Anhui Xinhua University, Hefei 230088, Anhui, China |
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| Abstract: | To research the dynamic characteristics and vibration mechanism of low-story masonry structures in rural buildings, we used ABAQUS to establish seven finite element models based on a survey of rural buildings. In the models, we considered structure layout, strength of the materials, and mesh density. Then, we analyzed the dynamic characteristics of each model and compared their vibration shapes, modal components, and vibration periods. The results show that the vibration characteristics of traditional masonry structures are not conducive to seismic design and that the degradation of materials reduces the bearing capacity of the structures, while at the same time amplifying the seismic action of the wall oscillation component, which increases the probability of outward collapse in earthquake. If the basic vibration type is horizontal along the transverse direction, the seismic capacity of the structure is improved with respect to both the bearing and deformation abilities of load-bearing walls. In addition, we propose ABAQUS mesh requirements for shell elements with respect to thickness. |
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| Keywords: | rural building masonry structure dynamic characteristics ABAQUS |
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