CAJ | 학술논문

采用反应位移法进行地下结构抗震计算时，关键是确定土体的弹簧系数，弹簧系数的取值直接影响计算结果。在现有的静力有限元求解弹簧系数方法的基础上，通过不同的施力方式共设计了6种静力有限元求解弹簧弹簧系数的方法，并对这6种计算方法进行对比分析计算。结果表明，整体和整体同时求解径向和切向弹簧系数这两种方法的计算结果偏于危险；单独和单独同时求解水平和垂直向弹簧系数这两种方法的计算精度最好；整体和整体同时求解水平和垂直向弹簧系数这两种方法的计算结果偏于安全。
채용반응위이법진행지하결구항진계산시，관건시학정토체적탄황계수，탄황계수적취치직접영향계산결과。재현유적정력유한원구해탄황계수방법적기출상，통과불동적시력방식공설계료6충정력유한원구해탄황탄황계수적방법，병대저6충계산방법진행대비분석계산。결과표명，정체화정체동시구해경향화절향탄황계수저량충방법적계산결과편우위험；단독화단독동시구해수평화수직향탄황계수저량충방법적계산정도최호；정체화정체동시구해수평화수직향탄황계수저량충방법적계산결과편우안전。
When the response displacement method is adopted for the seismic calculations of un-derground structures,the key is to determine the soil spring constant,as spring constant values directly affect the calculation results.Based on the existing static finite element method of calcu-lating the spring constant,six variations of this method are designed through different applica-tions of force,and their calculation results are compared.The calculation results of the whole so-lution and the whole simultaneous solution of the radial and tangential spring constant methods should be dangerous,the single solution and the single simultaneous solution of the horizontal and vertical spring constant methods possess high computational precision,and the calculation results of the whole solution and the whole simultaneous solution of the horizontal and vertical spring constant methods show be safe.