Open AccessA Study on Analysis of Long Span Continuous Rigid Frame Bridge
Author(s) -
Guizhou Xu,
Bin Yang,
Chuang Chen,
Shirong Wei,
Zhenxue Li
Publication year - 2019
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/611/1/012045
Subject(s) - structural engineering , deflection (physics) , rigid frame , creep , stiffness , shrinkage , deck , bridge deck , finite element method , engineering , materials science , composite material , frame (networking) , physics , mechanical engineering , optics
A case study of a large span pre-stressed concrete continuous rigid frame bridge (Ba-Mao-Chong bridge) of GUI DU high speed railway. Finite element program Midas/Civil is used to simulate the construction process and operation phase, the influence of concrete overweight, pre-stressing loss, concrete shrinkage and creep, stiffness loss and other factors that related the long-term deflection of bridge are analyzed. The calculation results show that: (1) The overweight concrete and Bridge deck pavement construction error could cause the bridge long-term deflection increases. (2) The creep coefficient, environment humidity, and other factors on the bridge have significantly influence on long-term mid-span deflection, (3) The beam stiffness reduction could lead to the bridge long-term mid-span deflection increase.