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快速加载是爆炸动载的一个显著特点。快速加载下材料的力学性质有些改变,最为明显者是材料强度提高。快速加载下钢材、混凝土的力学特性,早在本世纪五、六十年代已有较多研究成果;而快速加载下砖砌体力学特性的研究现在还是刚刚起步。这里所指的爆炸动载主要是土中防护工程最常见的有一定升压时间的动载。根据笔者近期的科研成果,本文探索了快速加载下砖砌体的抗压强度与变形特性。
Fast loading is a prominent feature of explosive dynamic loading. The mechanical properties of the material under rapid loading have changed somewhat, the most obvious being the increase in material strength. The mechanical properties of steel and concrete under rapid loading have been studied as early as in the 1950s and 1960s. However, the study of the mechanical properties of brick masonry under rapid loading has just started. The dynamic load of the explosion referred to here is mainly the dynamic load in the soil protection project that has the most time to increase the pressure. According to the author’s recent scientific research results, this paper explores the compressive strength and deformation characteristics of brick masonry under rapid loading.