部分填充混凝土钢管结构桥梁研究  

Research on Partially Concrete-filled Steel Tubular Bridges

作　　者：叶卓棋 杨健[2] 刘永健[2] 李运喜[3] 

机构地区：[1]东莞市公路桥梁开发建设总公司,广东东莞523120 [2]长安大学桥梁与隧道陕西省重点实验室,陕西西安710064 [3]江苏省交通科学研究院股份有限公司,江苏南京210017

出　　处：《建筑科学与工程学报》2010年第2期96-101,共6页Journal of Architecture and Civil Engineering

基　　金：国家西部交通建设科技项目(2006318812112);交通部应用基础研究计划项目(2006319812130);教育部新世纪优秀人才支持计划项目(NCET-06-0855)

摘　　要：在总结各国钢管结构研究现状的基础上,分析了部分填充混凝土钢管结构的类型及工程应用,探讨了部分填充混凝土钢管桁架结构桥梁的形式,展望了部分填充混凝土钢管桁架新型结构桥梁的优势和应用前景,最后以一座刚性悬索加劲的三跨连续钢桁梁桥为例进行了部分填充混凝土前后的静动力特性对比分析。结果表明:在钢桁梁桥弦杆内填混凝土能降低杆件的应力水平,提高桥梁的整体刚度。A summary of existing researches on steel tubular structures was presented.Structural styles and engineering applications for partially concrete-filled steel tubular bridges were analyzed based on the above researches.Structural styles of partially concrete-filled steel tubular truss bridges were also analyzed.The prospects for the development on this novel kind of steel tubular truss bridges and their advantages were discussed.At last,static and dynamic characteristics of a continuous steel bridge stiffened with rigid cables were compared with that of the partially concrete-filled truss bridge.The results show that the stresses of chord members of partially concrete-filled steel truss bridge are decreased,while its integral stiffness is increased.

关 键 词：部分填充混凝土钢管结构 钢管桁架结构桥梁 静动力特性 弦杆 

分 类 号：U448.38[建筑科学—桥梁与隧道工程]