【摘要】 云南省龙陵至腾冲二级公路上的龙腾大桥,采用变连续刚构桥方案,桥跨布置为58m+102.25m+63m,其桥址位于八度地震区,需要进行抗震设计;依据抗震准则的设计目标,进行了地震作用下的抗震分析,包括自振特性分析,反应谱分析和动态时程分析;并以此为合理的结构抗震设计提供明确的依据。更多还原

【Abstract】 The construction of Longteng Bridge on the second-rank road between Longling and Tengchong in Yunnan Province used pre-stress concrete continuous box girder layout,the span of this bridge is 58m+102.25m+63m,the bridge construction site is located in eight degree seismic area,as a result,the design of the bridge should consider earthquake-resistance.Based on design objective of earthquake-resistance principle,earthquake-resistance analysis under the action of earthquake is conducted including natural vibration characteristics analysis,response spectrum analysis and dynamic time-history analysis,which provides the clear basis for reasonable structure earthquake-resistance design.更多还原