砌体强度对自建民居抗震性能的影响分析

俞瑞芳;谢志强;彭凌云;俞言祥

振动与冲击 ›› 2014, Vol. 33 ›› Issue (11) : 6-11.

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振动与冲击 ›› 2014, Vol. 33 ›› Issue (11) : 6-11.
论文

砌体强度对自建民居抗震性能的影响分析

  • 俞瑞芳1 ,谢志强2,彭凌云2,俞言祥1

作者信息 +

Effect of masonry strength on the seismic behavior of self-built dwelling

  • YU Rui-fang1,XIE Zhi-qiang2, PENG Ling-yun2,YU Yan-xiang1
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摘要

通过对比模拟地震振动台试验结果及有限元分析结果,对砌体结构非线性有限元分析方法进行了讨论,并对一种中国村镇普遍存在的自建民居(无构造柱、退层砖砌体结构)的抗震性能进行了研究。结果表明:(1)塑性损伤模型可以用于近似模拟砌体结构力学行为,与试验结果的对比表明了该方法的有效性;(2)采用Mu15粘土砖和M10水泥砂浆构建的无构造柱民居,能够承受加速度峰值为0.3g的地震作用,但破坏严重,达不到大震不倒的要求;(3)降低砂浆或砖的强度等级,对砌体的抗压强度影响较大,对结构整体抗震性能将产生重要的影响。因此应将村镇自建民居的设计和施工过程纳入国家规范管理,以减少村镇民居的震害。

Abstract

Based on the comparison of results between the shaking table test and finite element analysis, the method of nonlinear finite element analysis of brick masonry structure is discussed, and the dynamic performance of a typical rural dwelling model without structural column were studied. The results showed that (1) The plastic damage model can be used to approximately simulate the mechanical behaviors of masonry structure , and the results of the finite element simulation were consistent with that of the test. (2) The typical rural house (strength class of brick and mortar are respectively Mu15 and M10) was able to withstand earthquake action corresponding to peak acceleration 0.3g, but would be seriously damaged and was inferior to the seismic requirements for large earthquake. (3) Importantly, reducing strength class of mortar or brick had great influence on masonry strength and the seismic performance of structure. In conclusion, in order to reduce earthquake damage, both the design and the construction process of self-built dwellings should be included in national standardized management.

关键词

自建民居 / 砌体结构 / 抗震性能 / 振动台试验 / 非线性有限元

Key words

Self-built dwelling / Masonry structure / Dynamic performance / Shaking table test / Nonlinear finite element

引用本文

导出引用
俞瑞芳;谢志强;彭凌云;俞言祥. 砌体强度对自建民居抗震性能的影响分析[J]. 振动与冲击, 2014, 33(11): 6-11
YU Rui-fang;XIE Zhi-qiang;PENG Ling-yun;YU Yan-xiang. Effect of masonry strength on the seismic behavior of self-built dwelling[J]. Journal of Vibration and Shock, 2014, 33(11): 6-11

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