Optimization Design Method of Steel Truss Girder Bridge Reliability

2011 ◽  
Vol 243-249 ◽  
pp. 1826-1829 ◽  
Author(s):  
Gang Yang ◽  
Ai Feng Zhang ◽  
Xin Kui Li
Keyword(s):  
Optimization Design ◽  
Design Method ◽  
Ansys Software ◽  
Reliability Design ◽  
Steel Truss Bridge ◽  
Steel Truss ◽  
Bridge Reliability ◽  
Girder Bridge ◽  
Truss Bridge ◽  
Steel Truss Girder

The research of optimization for steel truss bridge based on reliability theory is discussed by using optimization and reliability module in ANSYS software. The reliability design method is elucidated by comparing the results of common design with general optimization and reliability optimization.

Steel Truss Girder Bridge Reinforcement Removing Phase Analysis of Stress Dynamic Monitoring

2013 ◽  
Vol 668 ◽  
pp. 650-655
Author(s):  
Yang Zhou ◽  
Jun Feng Shi ◽  
Tian Qing Yu
Keyword(s):  
Dynamic Monitoring ◽  
Steel Girder ◽  
Steel Truss Bridge ◽  
Construction Procedure ◽  
Simulating Calculation ◽  
Steel Truss ◽  
Contrast Analysis ◽  
Girder Bridge ◽  
Truss Bridge ◽  
Steel Truss Girder

By taking a simple supported concrete-filled steel truss bridge as the research object in Guangzhou, some jobs have been done such as the simulating calculation and the real-time monitoring of side span steel girder during the jacking construction procedure, and contrast analysis was conducted between the calculating stress value and the measured stress value, which may draw a conclusion that the safety could be satisfied during the jacking construction procedure

Analysis of Effect of Fetching Girder from Trestle of Long-Span Steel Truss Bridge under Cantilever Erection

2014 ◽  
Vol 587-589 ◽  
pp. 1522-1526
Author(s):  
Xu Luo ◽  
Xin Sha Fu ◽  
Li Xiong Gu ◽  
Lu Rong Cai
Keyword(s):  
Utilization Efficiency ◽  
Large Span ◽  
Long Span ◽  
Steel Truss Bridge ◽  
Angle Change ◽  
Steel Truss ◽  
Truss Bridge ◽  
Steel Truss Girder

A large span steel truss bridge, it assembles "high, big, difficult, new, deep, steep, dangerous, heavy", etc., "eight" features in a body. In order to reduce the number of transportation ships and make the erection convenient, this paper studies a set of revolving beam erection scheme to improve the utilization efficiency of trestle. Through calculation, it is found that fetching girder directly from trestle is feasible. cantilever erection of the girder , The main truss linearis of the steel truss girder upstream and downstream has slightly deviation with the operating angle change of the cantilever crane and it need to stop lifting when monitoring and measuring, and the mast should be placed along the bridge direction.

Structure Design of Car Overpass in the Urban Rail Construction

2014 ◽  
Vol 1006-1007 ◽  
pp. 38-41
Author(s):  
Lei Chen ◽  
Hong Sheng Qiu
Keyword(s):  
Three Dimensional ◽  
Element Model ◽  
Structure Design ◽  
Cable Stayed Bridge ◽  
Steel Truss Bridge ◽  
Steel Truss ◽  
Dimensional Finite Element ◽  
Girder Bridge ◽  
Three Dimensional Finite Element ◽  
Truss Bridge

The car overpass can play a significant role in easing traffic pressure. So for maximum easing traffic pressure, two types of car overpass are put forward: steel trussed girder-bridge and steel trussed cable-stayed bridge. Then establish a three-dimensional finite element model of the steel truss bridge and cable-stayed bridge by ANSYS. According to stress analysis and comparison of the steel truss and steel truss cable-stayed, the cable-stayed structure can enhance structural rigidity and strength, and have little influence on traffic.

Deconstruction Monitoring of a Steel Truss Bridge

2017 ◽  
Vol 2642 (1) ◽  
pp. 139-146
Author(s):  
Matthew Yarnold ◽  
Stephen Salaman ◽  
Eric James
Keyword(s):  
Steel Truss Bridge ◽  
Steel Truss ◽  
Truss Bridge

scholarly journals A Bayesian Belief Network method for bridge deterioration detection

2020 ◽  
pp. 1748006X2097922
Author(s):  
Matteo Vagnoli ◽  
Rasa Remenyte-Prescott ◽  
John Andrews
Keyword(s):  
Element Model ◽  
Bayesian Belief Network ◽  
Geographic Area ◽  
Detection Methods ◽  
Health State ◽  
Belief Network ◽  
Steel Truss Bridge ◽  
Steel Truss ◽  
Network Method ◽  
Truss Bridge

Bridges are one of the most important assets of transportation networks. A closure of a bridge can increase the vulnerability of the geographic area served by such networks, as it reduces the number of available routes. Condition monitoring and deterioration detection methods can be used to monitor the health state of a bridge and enable detection of early signs of deterioration. In this paper, a novel Bayesian Belief Network (BBN) methodology for bridge deterioration detection is proposed. A method to build a BBN structure and to define the Conditional Probability Tables (CPTs) is presented first. Then evidence of the bridge behaviour (such as bridge displacement or acceleration due to traffic) is used as an input to the BBN model, the probability of the health state of whole bridge and its elements is updated and the levels of deterioration are detected. The methodology is illustrated using a Finite Element Model (FEM) of a steel truss bridge, and for an in-field post-tensioned concrete bridge.

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