国防交通工程与技术
國防交通工程與技術
국방교통공정여기술
TRAFFIC ENGINEERING AND TECHNOLOGY FOR NATIONAL DEFENCE
2012年
1期
22-26,11
,共6页
城市高架桥%独柱大悬臂盖梁%双柱墩%梁格法%荷载试验%动力性能
城市高架橋%獨柱大懸臂蓋樑%雙柱墩%樑格法%荷載試驗%動力性能
성시고가교%독주대현비개량%쌍주돈%량격법%하재시험%동력성능
urban viaduct%single-column cantilever bent cap%double-column pier%beam grillage method%load tests%dynamic behavior
应用梁格法,以独柱大悬臂盖梁高架桥和双柱墩高架桥为例进行仿真分析,并结合荷载试验从自振频率、振幅和冲击系数三个方面对独柱大悬臂盖梁高架桥和双柱墩桥梁的动力特性进行对比分析。研究结果表明：独柱大悬臂盖梁桥梁发生横向振动时,会产生相应的扭转模态,双柱墩可明显增强桥梁的横向刚度;独柱大悬臂盖梁结构在一定程度上削弱了全桥的动力性能。
應用樑格法,以獨柱大懸臂蓋樑高架橋和雙柱墩高架橋為例進行倣真分析,併結閤荷載試驗從自振頻率、振幅和遲擊繫數三箇方麵對獨柱大懸臂蓋樑高架橋和雙柱墩橋樑的動力特性進行對比分析。研究結果錶明：獨柱大懸臂蓋樑橋樑髮生橫嚮振動時,會產生相應的扭轉模態,雙柱墩可明顯增彊橋樑的橫嚮剛度;獨柱大懸臂蓋樑結構在一定程度上削弱瞭全橋的動力性能。
응용량격법,이독주대현비개량고가교화쌍주돈고가교위례진행방진분석,병결합하재시험종자진빈솔、진폭화충격계수삼개방면대독주대현비개량고가교화쌍주돈교량적동력특성진행대비분석。연구결과표명：독주대현비개량교량발생횡향진동시,회산생상응적뉴전모태,쌍주돈가명현증강교량적횡향강도;독주대현비개량결구재일정정도상삭약료전교적동력성능。
Viaducts respectively with the single-column cantilever bent cap and with conventional double-column piers are simulated and analyzed by the grillage analytic method in the paper,with the dynamic behavior of the viaducts compared and analyzed by means of load tests from the angles of the natural frequency,the amplitude of vibration and the impact coefficients.The results of our research show that the torsional vibration modal is associated with lateral vibration of the viaduct with the single-column cantilever bent cap,while the double-column pier can significantly enhance the lateral stiffness of the bridge.They also shows that the structure of the single-column and cantilever bent cap weakens the dynamic performance of the whole bridge to some extent.
