CAJ | 학술논문

基于弹性地基梁的微型桩内力计算方法中有一种是假定上部为钢架，滑面处为固定支座，传递弯矩和剪力，滑面以下桩体按弹性地基梁法计算。本文所选微型桩同样采用组合结构计算，同时考虑滑面处变形协调，把弹性地基梁的位移和转角作为上部结构的支座位移，考虑位移对内力的影响。针对微型桩滑面处弯矩，基于 FLAC3 D程序，建立简化的微型桩数值计算模型，提取桩的内力并绘制弯矩图，数值模拟结果与考虑变形协调后的弯矩图更接近。
기우탄성지기량적미형장내력계산방법중유일충시가정상부위강가，활면처위고정지좌，전체만구화전력，활면이하장체안탄성지기량법계산。본문소선미형장동양채용조합결구계산，동시고필활면처변형협조，파탄성지기량적위이화전각작위상부결구적지좌위이，고필위이대내력적영향。침대미형장활면처만구，기우 FLAC3 D정서，건립간화적미형장수치계산모형，제취장적내력병회제만구도，수치모의결과여고필변형협조후적만구도경접근。
Among existing calculation methods for micropiles internal force,the upper structure was assumed as a steel frame and the sliding surface as a fixed support transfering moment and shear while the lower structure as an elastic foundation beam. In this paper,the selected micropiles were calculated as a composite structure. The deformation coordination at the sliding surface was considered,and the displacement and the rotation of the lower structure were used as those of the bearings for the upper structure. T he effect of the displacement on the internal force was studied. Based on the FLAC3D program,a simplified model was established to simulate the micropiles. T he internal force and the moment distribution were obtained with this model. W ith consideration of the deformation coordination at the sliding surface,the results were more closed to the results of numerical simulation.