[1]李杰,陈彬..连续刚构桥顶推力计算与优化分析[J].郑州大学学报(工学版),2013,34(06):85-89.[doi:10.3969／j.issn.167l一6833.2013.00.021]
　LI JielCHEN Bin.Analysis ofContinuous Rigid FrameBridgeJackingForceCalculation andOptimization[J].Journal of Zhengzhou University (Engineering Science),2013,34(06):85-89.[doi:10.3969／j.issn.167l一6833.2013.00.021]
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连续刚构桥顶推力计算与优化分析()
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《郑州大学学报(工学版)》[ISSN:1671-6833/CN:41-1339/T]

卷:
34
期数:
2013年06期
页码:
85-89
栏目:
出版日期:
2013-12-30

文章信息/Info

Title:
Analysis ofContinuous Rigid FrameBridgeJackingForceCalculation andOptimization
作者:
李杰; 陈彬.
郑州大学土木工程学院,河南郑州,450001, 河南高速监理咨询有限公司,河南郑州,450000
Author(s):
LI Jiel．CHEN Bin
1.Sch001 of Civil Engineering，Zhengzhou University，Zhengzhou450001，China；2.Henan HighwaySupervision Consultation Co．Ltd．，Zhengzhou450000，China)
关键词:
连续刚构桥;  合龙;  顶推力;  温度修正
Keywords:
Continuous rigid frame bridge; closure; jacking force; temperature correction
分类号:
U441
DOI:
10.3969／j.issn.167l一6833.2013.00.021
文献标志码:
A
摘要:
以白水峪大桥为背景,利用有限元软件MIDAS/Civil建立五跨连续刚构桥的空间梁单元有限元模型,分析合龙口不同顶推力作用下成桥阶段主梁的水平位移,讨论合龙温度对顶推力及梁体纵向变形的影响.通过数值计算和对比得出:顶推力与成桥后主梁的水平位移呈线性变化,次中跨顶推力和中跨顶推力对各墩顶水平位移的影响程度不同,当增大次中跨顶推力对于边跨主墩的水平位移有利,而对于中跨主墩的水平位移不利;当增大中跨顶推力对于所有主墩的水平位移均有利;对于五跨连续刚构桥,合龙顶推力应着重调整优化中跨顶推力;最后依据合龙施工现场实
Abstract:
Taking the Baishuiyu bridge as the back ground，using the finite element software MIDAS／Civil to buih the space beam finite element modelof five span continuous rigid frame bridge，horizontaldisplacement of the finished bridge’s main girder is analyzed under differentjackingforce，then effect among the closure’s temperature．jacking forceand horizontal displacement is discussed．Through numerical calculation and con‘ trast。it drawsthe conclusion that the relationbetweenjackingforceand horizontal displacement are linearvar。iation．The effect of iacking force of the side middle span and middle span to pier top’s horizontal displace。ment is different．When iackingforce of sidemiddle span is increased，it is favorable to the side span’s main pier of the horizontal displacement and unfavorable to the middle span’s main pier of the horizontal displace。ment．When iackingforce of middle span is increased，it is favorable to all main pier of the horizontal dis。Dlacement．So to the five span continuous rigid frame bridge，it should preferentially adjust jacking force of main span．Finally．according to temperature of the fact site，to use relation between closure’s temperature andhorizontal displacement，jacking force is adjusted to optimize thejacking force．

参考文献/References:

[1]徐建国,陈淮,王博,等．连续箱梁桥力学性能分析[ J]．郑州大学学报:工学版,2004,25( 1 ):28 - 30.

[2]张刚刚,吴重男．连续刚构桥合龙段顶推力设计探讨[J.中外公路,2011,35(5) :119- 122.

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更新日期/Last Update: 1900-01-01