CAJ | 학술논문

建立三维有限模型,分别采用振型分解反应谱法和时程分析法研究刚性桩复合地基的抗震性能,并根据相似理论,建立刚性桩复合地基群桩模型,采用模型拟动力试验,对其进行了地震作用下桩体响应规律试验研究,并对其在不同方法下的结果进行了对比分析,结果表明:无论是弯矩值还是剪力值,都是角桩最大,其次是边桩,再次是中心桩;不同分析方法所得的位移值相差不大,位移分布比较均匀;而且通过观察试验现象、分析试验和理论数据可见刚性桩复合地基具有良好的抗震性能;模型动力试验方法用于研究刚性桩复合地基的抗震性能是可行的,并且可推广应用到类似性的其他复合地基的抗震性能试验研究.
건립삼유유한모형,분별채용진형분해반응보법화시정분석법연구강성장복합지기적항진성능,병근거상사이론,건립강성장복합지기군장모형,채용모형의동력시험,대기진행료지진작용하장체향응규률시험연구,병대기재불동방법하적결과진행료대비분석,결과표명:무론시만구치환시전력치,도시각장최대,기차시변장,재차시중심장;불동분석방법소득적위이치상차불대,위이분포비교균균;이차통과관찰시험현상、분석시험화이론수거가견강성장복합지기구유량호적항진성능;모형동력시험방법용우연구강성장복합지기적항진성능시가행적,병차가추엄응용도유사성적기타복합지기적항진성능시험연구.
@@@@3D finite element model is built in this paper, and seismic behavior of pile body of rigid pile composite foundation is studied by using response spectrum method and time history analysis method. According to similarity theory, pile group model of rigid pile composite foundation is established to analyze the response pattern with pseudo-dynamic test methods. And compared and analyzed the results which are obtained by different methods, whether bending moment or shear also are:the biggest is the corner pile, next is the side pile, and the smallest is the center pile; the displacement value difference is very little. The result shows that displacement distribution of rigid pile composite foundation is more uniform under seismic response;rigid pile composite foundation has excellent seismic behavior, based on observing experimental phenomena and studying theoretical and experimental data;pseudo-dynamic test method used to study the seismic behavior of rigid pile composite foundation is feasible;and it can be applied to the other test research of composite foundation with similar seismic behavior.