设置加劲索的三塔两跨悬索桥静力性能的渐进方法  

Progressive Method on Static Performance of Triple-Tower-Twin-Span Suspension Bridge with Stiffening Cables

作　　者：王鹏展 王立彬[1] 金泊含 尹志清 彭自强 WANG Pengzhan;WANG Libin;JIN Bohan;YIN Zhiqing;PENG Ziqiang(Department of Transportation Civil Engineering,School of Civil Engineering,Nanjing Forestry University,Nanjing 210037,China;Taicang Traffic Engineering Quality Supervision Station,Suzhou 215400,China;The Third Engineering Company of CCCC Tunnel Engineering Co.,Ltd.,Nanjing 210037,China;Jiangsu Feishang Technology Safety Monitoring Consulting Co.,Ltd.,Zhenjiang 211009,China)

机构地区：[1]南京林业大学土木工程学院交通土通工程系,南京210037 [2]太仓市交通工程质量监督站,苏州215400 [3]中交隧道工程局有限公司第三工程公司,南京210037 [4]江苏飞尚科技安全监测咨询有限公司,镇江211009

出　　处：《结构工程师》2019年第6期49-55,共7页Structural Engineers

基　　金：高等学校博士学科点专项科研基金(20133204120015);江苏省高等院校自然基金(12KJB56OOO3);江苏高校优势学科建设工程资助项目(PDPA)。

摘　　要：设置加劲索的多跨悬索桥属于新型悬索桥结构体系,需要展开深入研究。基于结构力学位移法和渐近法提出了多塔多跨悬索桥静力分析的渐进方法的概念、方法和步骤,最后给出设置加劲索的三塔两跨悬索桥的一个算例,并与有限元方法的结果进行了对比分析。结果表明:渐进方法的计算结果与有限元法有良好的一致性,最大误差为19.68%,满足概念设计小于20%的要求,渐进法适用于三塔两跨悬索桥及多塔多跨悬索桥结构初步设计分析。The multi span suspension bridge with stiffened cable belongs to a new suspension bridge structure system,which needs to be studied in depth.In this paper,based on the displacement method and progressive method in structural mechanics,a new progressive method including its concept and method as well as steps for the static analysis of multi tower and multi span suspension bridge is put forward,an example is given,the results from the progressive method and those form the finite element method were compared,The results show that there is a favorable consistency between the theoretical calculation results and the finite element method,the maximum error is 19.68% respectively,which meet the requirement of less than 20%of the conceptual design,thus it is a simple method in the preliminary design stage for a multi-span suspension bridge.

关 键 词：桥梁工程 三塔两跨悬索桥 渐进法 静力性能 

分 类 号：U448.25[建筑科学—桥梁与隧道工程]