|Table of Contents|

Construction risk analysis of butterfly arch continuous girder bridge with large angle V-shaped pier(PDF)

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

Issue:
2012年03期
Page:
28-36
Research Field:
道路与铁道工程
Publishing date:

Info

Title:
Construction risk analysis of butterfly arch continuous girder bridge with large angle V-shaped pier
Author(s):
WANG Li-feng XIAO Zi-wang ZHANG Zhen-wei JIA Yan-min SUN Yong
School of Civil Engineering, Northeast Forestry University, Harbin 150040, Heilongjiang, China
Keywords:
bridge engineering butterfly arch continuous girder bridge artificial neural network risk analysis analytic hierarchy process grey theory Monte Carlo theory
PACS:
U448.215
DOI:
-
Abstract:
The risk analysis problem of bridge construction was studied based on HGMFN comprehensive evaluation method, and a practical approach was proposed for V-shaped pier in construction process. The highest risk factor in V-shaped pier construction was confirmed by using AHP and grey theory, and construction plan comparison was carried out. Numerical simulation of stress state for V-shaped pier was done by using ANSYS software. Risk factor analysis was carried out on the basis of Monte Carlo theory and radial basis function artificial neural network technology. Analysis result indicates that when the simulation of structural stress state is more than two million times, the connection between V-shaped pier top and main beam has 8.5% higher failure risk than root of slant leg, which is the main structure failure risk location. HGMFN comprehensive evaluation method can analyze risk factors quantitatively, and has higher risk analysis accuracy and efficiency. 11 tabs, 7 figs, 21 refs.

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Last Update: 2012-06-30