CAJ | 학술논문

基于可液化地基上三拱立柱式地铁地下车站结构非破坏性振动台模型试验，用光纤Bragg光栅测试模型结构中柱镀锌钢丝应变时程，用应变片测试对应位置处微粒混凝土应变时程；运用Mann-Whitney U非参数检验方法，定量分析镀锌钢丝与微粒混凝土的协同工作关系。结果表明，模型结构在地震动作用下，处于弹性或轻微损伤工作阶段；不同地震动作用时，模型结构中柱顶部及底部镀锌钢丝应变测试样本与微粒混凝土应变测试样本非参数检验系数P均大于0．05，两者无显著性差异；对中柱中部，光纤Bragg光栅测试的应变形态显著优于应变片测试结果。对电磁干扰较大、信号较弱的测试部位或小尺寸基体材料，采用光纤光栅传感测试技术更适合。
기우가액화지기상삼공립주식지철지하차참결구비파배성진동태모형시험，용광섬Bragg광책측시모형결구중주도자강사응변시정，용응변편측시대응위치처미립혼응토응변시정；운용Mann-Whitney U비삼수검험방법，정량분석도자강사여미립혼응토적협동공작관계。결과표명，모형결구재지진동작용하，처우탄성혹경미손상공작계단；불동지진동작용시，모형결구중주정부급저부도자강사응변측시양본여미립혼응토응변측시양본비삼수검험계수P균대우0．05，량자무현저성차이；대중주중부，광섬Bragg광책측시적응변형태현저우우응변편측시결과。대전자간우교대、신호교약적측시부위혹소척촌기체재료，채용광섬광책전감측시기술경괄합。
Based on the non-destructive shaking table model test of a three-arch type underground station structure of subway on a liquefiable foundation,the strain responses of galvanized steel wires in the center pillar of the model were measured with optical fiber Bragg grating sensing technology and the strain responses of microconcrete at the corresponding positions were measured with strain gauges.The synergy relations of galvanizing steel wires and microconcrete were analyzed quantitatively with Mann-Whitney U non-parameter detection method.The results showed that the model structure is in an elastic or minor damage working stage under the action of ground motion;the inspection coefficient P values obtained with Mann-Whitney U non-parameter detection method at the top and bottom of the center pillar of the model are all larger than 0.05 under different ground motions;at the middle part of the center pillar ,the strains obtained with fiber Bragg grating measuring technique are obviously better than those with strain gauges;under larger electromagnetic interferences,for the positions where there exist relatively weak signals or basis materials of small sizes,the fiber Bragg grating sensing technique is more applicable.