Numerical Study on Soil Width in Quasi-Static Pushover Test of Soil-Underground Structure System

Based on the test results of series quasi-static tests carried out by JSCE Committee, the rationality of the numerical model for quasi-static test of soil-underground structure system was verified. Then a quasi-static pushover test scheme was introduced, the verified numerical model was adopted to study the reasonable range of soil width in the quasi-static pushover test of soil-underground structure system. The results indicated that for this quasi-static pushover test scheme, when α (α is the ratio of the distance from boundary to the model structure to the model structure’s width) is 0.5 to 1.2, error of the seismic capacity of the key structural components obtained by the test method is relatively small.