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本文对塘沽新港地区的3～4层典型建筑物在唐山地震时的震陷值作了计算分析。介绍了计算原理、方法和各种计算参数的选取。计算结果表明,计算值与实测值是十分相近的,并确定了相应的计算修正系数。文中指出,筏基震陷较大的主要原因是贴近筏基础下的大块土体遭到了明显的震陷作用。还确定了不同高度建筑物的震陷临界深度。
This paper makes a calculation and analysis of the seismic collapse value of the typical building with 3 to 4 floors in the Tangshan earthquake in the Xingang area of Tanggu. The calculation principle, method and selection of various calculation parameters are introduced. The calculation results show that the calculated value is very close to the measured value, and the corresponding calculation correction coefficient is determined. The paper points out that the main reason for the larger basement collapse is that the large-scale soils that are close to the base of the radon are subject to a significant seismic depression. The critical depth of seismic settlements at buildings of different heights has also been determined.