
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
Effect of masonry strength on the seismic behavior of self-built dwelling
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.
自建民居 / 砌体结构 / 抗震性能 / 振动台试验 / 非线性有限元 {{custom_keyword}} /
Self-built dwelling / Masonry structure / Dynamic performance / Shaking table test / Nonlinear finite element {{custom_keyword}} /
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