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某些在役历史建筑中,承重的砌体墙是主要的抗侧力构件,其抗震性能对于结构整体的地震反应有很大的影响。在这些建筑中,由于块体和砂浆的强度一般较低且经过长时间的风化作用,砌体承重墙的抗震性能需要进行专门的研究。为此,从与某在役历史保护建筑兴建年代、使用材料相同的历史建筑修缮施工现场获取砖块,并采用古建筑用石灰砂浆制作受压试件和墙体试件,进行了材料力学性能试验和墙体伪静力试验。对墙体试件的破坏模式、滞回耗能、刚度退化情况等进行了讨论。采用经过检验的力学性能参数,应用计算机仿真方法拓展了试验结果,对墙体的抗震性能进行了分析。指出了在役历史建筑中砌体承重墙的特点。所使用的方法和得到的结论对于深入探讨在役历史建筑的抗震性能具有一定的参考价值。
In some historic buildings under construction, the load-bearing masonry wall is the main anti-skid component and its seismic performance has a great influence on the seismic response of the whole structure. In these buildings, the seismic behavior of masonry load-bearing walls requires special studies due to the generally low strength of blocks and mortars and the long-term weathering. To this end, from the historic construction of a building in service history, the same historical materials used to repair the construction site to obtain bricks, and the use of ancient mortar building mortar specimens and wall specimens, the material mechanical properties Test and wall pseudo-static test. The damage modes, hysteretic energy dissipation and stiffness degradation of wall specimens were discussed. Using the tested mechanical performance parameters, the computer simulation method was used to expand the test results and analyze the seismic performance of the wall. The characteristics of the load-bearing walls of masonry in the historic buildings in service are pointed out. The methods used and the conclusions obtained are of certain reference value for in-depth discussion on the seismic performance of in-service historic buildings.