国防交通工程与技术
國防交通工程與技術
국방교통공정여기술
TRAFFIC ENGINEERING AND TECHNOLOGY FOR NATIONAL DEFENCE
2012年
6期
46-49,58
,共5页
连续刚构桥%有限元模型%徐变%收缩%结构分析
連續剛構橋%有限元模型%徐變%收縮%結構分析
련속강구교%유한원모형%서변%수축%결구분석
continuous rigid-frame bridge%finite element model%gradual deformation%contraction%structural analysis
以某一铁路高墩大跨连续刚构桥为例,利用空间有限元计算软件MIDAS/Civil建立了该桥仿真模型,对该桥考虑收缩徐变和不考虑收缩徐变的内力、挠度等进行了对比研究,得出了收缩徐变对铁路高墩大跨连续刚构桥的影响规律,该规律可为该类型桥梁的施工控制和结构分析提供借鉴。
以某一鐵路高墩大跨連續剛構橋為例,利用空間有限元計算軟件MIDAS/Civil建立瞭該橋倣真模型,對該橋攷慮收縮徐變和不攷慮收縮徐變的內力、撓度等進行瞭對比研究,得齣瞭收縮徐變對鐵路高墩大跨連續剛構橋的影響規律,該規律可為該類型橋樑的施工控製和結構分析提供藉鑒。
이모일철로고돈대과련속강구교위례,이용공간유한원계산연건MIDAS/Civil건립료해교방진모형,대해교고필수축서변화불고필수축서변적내력、뇨도등진행료대비연구,득출료수축서변대철로고돈대과련속강구교적영향규률,해규률가위해류형교량적시공공제화결구분석제공차감。
With a certain tall-pier,large-span continuous rigid-frame railway bridge as a practical example,a simulation model for the bridge is established in the light of the software of the finite element method in the paper,with the internal forces and the deflexion of the bridge both when the contraction-caused gradual deformation of concrete is taken into account and when the contraction-caused gradual deformation of concrete is not taken into account compared and studied,which helps us work out the influential laws for the effects of the contraction-caused gradual deformation of concrete on the tall-pier,large-span railway bridge.These laws may serve as a useful reference for the construction control and structural analyses of bridges of the same type.
