|Table of Contents|

Simulation and monitoring of high-speed railway tied-arch bridge construction with arch first and beam late method(PDF)

《交通运输工程学报》[ISSN:1671-1637/CN:61-1369/U]

Issue:
2012年05期
Page:
28-36
Research Field:
道路与铁道工程
Publishing date:

Info

Title:
Simulation and monitoring of high-speed railway tied-arch bridge construction with arch first and beam late method
Author(s):
REN Wen-feng1; 2;  WANG Xing-hua1;  TU Peng1
1. School of Civil Engineering, Central South University, Changsha 410075, Hunan, China; 2. CCCC Road and Bridge International Co., Ltd., Beijing 100027, China
Keywords:
bridge engineering;  high-speed railway;  tied-arch bridge;  arch first and beam late construction;  simulation and monitoring
PACS:
U445.4
DOI:
-
Abstract:
The tied-arch bridge of Qingyang Harbour for Beijing-Shanghai High-Speed Railway was taken as research object, finite element simulation analysis and field monitoring were used, the stresses and strains of arch ribs and suspenders for high-speed railway tied-arch bridge with arch first and beam late construction method were calculated under different construction processes, and the change laws and control essentials of arch rib and suspender cable in construction process were analyzed. Calculation result shows that the maximal resilience deformation of arch rib is 37 mm by using finite element simulation, and the maximal compressive stress appears in the time between the closure of tied beams and the removing of temporary consolidation. The calculated elevations of arch rib points are identical with actual measurement values, and all the differences are less than 10 mm. The compressive stresses in main arch show a uniform distribution and are less than 80 MPa. So the construction method of arch rib integral hoisting and arch first and beam late is feasible. 3 tabs, 7 figs, 18 refs.

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Last Update: 2012-11-05