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| 摘要: |
| 云南省龙陵至腾冲二级公路上的龙腾大桥，采用变连续钢构桥方案，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。 |
| 关键词: 底板水平布置 连续刚构 抗震分析 |
| DOI： |
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| Analysis of Seismic Response to Continuous Rigid Frame Bridges with Bottom Plate Level Layout |
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YAN Bo,ZHANG Meng-long
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| 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 earthquak 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. |
| Key words: bottom plate level layout continuous rigid frame earthquake-resitance analysis |
