建筑施工·第44卷·第5期 1093
曲线连续刚构桥参数敏感性分析
曹 虹 庞丹丹 杨 乐
腾达建设集团股份有限公司 上海 201204
摘要： 以某曲梁变截面预应力混凝土连续刚构桥为研究背景，采用Midas/Civil有限元分析软件，考虑弹性模量、自重、
预应力、施工荷载、徐变系数等参数变化的影响，进行了各参数的敏感性分析，计算了各参数对本桥施工过程中竖向
累积位移的影响。结果表明：通过计算得出各项参数对桥梁结构施工竖向位移的影响程度，自重对本桥悬臂施工张拉
阶段时竖向累积位移影响最大，徐变系数对1 #块和7 #块竖向累积位移影响最小，挂篮重对13 #块竖向累积位移影响最
小。研究结果为曲线混凝土连续刚构桥的安全施工和合理成桥状态提供技术依据。同时，也为类似项目的参数敏感性
分析和施工控制提供了良好的借鉴。
关键词： 桥梁工程；参数敏感性分析；刚构桥；有限元分析
中图分类号： TU99 文献标志码： A 文章编号： 1004 -1001(2022)05 -1093-04 DOI： 10.14144/j.cnki.jzsg.2022.05.061
Parametric Sensitivity Analysis of Curved Continuous Rigid Frame Bridge
CAO Hong PANG Dandan YANG Le
Tengda Construction Group Co., Ltd., Shanghai 201204, China
Abstract: T akin g a c urv e d b eam v a ria b le c ro ss-s e ctio n p re str e sse d c oncre te c ontin uous r ig id fr a m e b rid ge a s th e r e se arc h
b ackg ro und , u sin g M id as/C iv ic fin it e e le m ent a naly sis s o ftw are , c onsid erin g th e c hang es o f e la stic m od ulu s, s e lf - w eig ht,
p re str e ss, c onstr u ctio n lo ad , c re ep c oeffic ie nt a nd o th er p ara m ete rs , th e s e nsit iv it y a naly sis o f e ach p ara m ete r is c arrie d
out, a nd th e in flu ence o f e ach p ara m ete r o n th e v e rtic al c um ula tiv e d is p la cem ent d urin g th e c onstr u ctio n o f th e b rid ge
is c alc ula te d . T he re su lt s s h ow th at th e in flu ence d eg re e o f v a rio us p ara m ete rs o n th e v e rtic al d is p la cem ent o f b rid ge
str u ctu re c onstr u ctio n is o b ta in ed th ro ug h c alc ula tio n. T he s e lf - w eig ht h as th e g re ate st in flu ence o n th e v e rtic al c um ula tiv e
d is p la cem ent in th e te nsio nin g s ta g e o f c antile ve r c onstr u ctio n o f th e b rid ge, th e c re ep c oeffic ie nt h as th e le ast in flu ence
on th e v e rtic al c um ula tiv e d is p la cem ent o f 1 # b lo ck a nd 7 # b lo ck, a nd th e h ang in g b aske t w eig ht h as th e le ast in flu ence o n
th e v e rtic al c um ula tiv e d is p la cem ent o f 1 3 # b lo ck. T he r e se arc h r e su lt s p ro vid e te chnic al b asis fo r th e s a fe c onstr u ctio n a nd
re aso nab le c om ple tio n s ta te o f c urv e d c oncre te c ontin uous rig id fr a m e b rid ge. A t th e s a m e tim e, it a ls o p ro vid es a g ood
re fe re nce fo r p ara m ete r s e nsit iv it y a naly sis a nd c onstr u ctio n c ontr o l o f s im ila r p ro je cts .
Keywords: b rid ge e ng in eerin g ; p ara m etr ic s e nsit iv it y a naly sis ; r ig id fr a m e b rid g
曲线连续刚构桥参数敏感性分析（论文）.pdf
