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 深 号 了 部分 舒 架桥梁的形式,1部分填充混钢管行架新型结构桥
梁的优势和应用前景,最后以一座刚性恶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。
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
中图分类号:U448.38
文献标志码:A
Research on PartiallyConcrete-filled Steel Tubular Bridges
YE Zhuo-qil , YANG Jian7, LIU Yong-jian?, LI Yun-xi*
(1. Dongguan Road &. Bridge Development Construction Corporation, Dongguan 523120,Guangdong, China;
2. Key Laboratory ior Bridge and Tunnel of Shaanxi Province, Chang an University , Xi an 710064,Shaanxi,
China, 3. Jiangsu Transportation Research lnstitute Co., Ltd, Nanjing 210017, Jiangsu, China)
Abstract: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.
Key words:partially concrete-filled steel tubular structure;steel tubular truss bridge;static and
dynamic characteristic;chord
0引言
混凝土结构的发展历程。
近年来,国外一些学者提出了部分填充混凝土
桥梁结构总是伴随着新型结构形式和新材料的
钢管结构桥梁的理念,使用填充混凝土的钢管和钢
产生而不断发展进步的。从1889年建成的Forth
筋混凝土桥面组合作斜拉桥的主梁,在桥跨不同位
铁路桥算起,钢管结构桥梁经历了空钢管结构、钢管
置的钢管中采用不同的混凝土填充方式,以适应斜
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