本文进行了震害与砖墙体强度的对比,结果表明在唐山市区,楼层平均抗震强度系数 K_i 大于0.25的多层砖房,一般不倒塌。文中又研究了不同烈度区砖墙体抗震强度系数的开裂临界值 K_0。上述结果为多层砖房按抗裂抗倒双重设防准则进行设计提供了技术参数。文中指出 K_0值亦可作为地震烈度的定量指标。文中通过对比,还反映了唐山市区的烈度异常现象。 This paper compares the seismic damage with the strength of the brick wall. The results show that in the urban area of ​​Tangshan, the multi-story brick house with an average floor strength factor K_i greater than 0.25 generally does not collapse. In this paper, the cracking critical value K_0 of the seismic strength coefficient of the brick wall in different intensity regions is studied. The above results provide technical parameters for the design of a multi-story brick house based on double-defense and anti-cracking criteria. The paper points out that K 0 value can also serve as a quantitative indicator of seismic intensity. Through contrast, the text also reflects the abnormal intensity in the urban area of ​​Tangshan.