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。
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.
出处
《重庆工商大学学报（自然科学版）》
2012年第8期74-78,共5页
Journal of Chongqing Technology and Business University:Natural Science Edition
关键词
底板水平布置
连续刚构
抗震分析
bottom plate level layout
continuous rigid frame
earthquake-resistance analysis
