The natural aging, environmental impact, and appropriate design are certainly playing a serious role in safety of the bridges function. The functional safety of bridge constitutes a prime element of the transportation system serving commuters, passengers and freight. According to Federal Highway Administration, the steel bridges share represents a large amount of the United States' bridges. In ...

The suspension bridges in mountainous areas are commonly designed with asymmetrical overall layouts to match the terrain and construction under limited space. However, effects influences of asymmetry parameters on bridge performance have yet be thoroughly investigated. To address this gap, based a real-world main span length 700 m, paper first presents an improved shape-finding method that can ...

In this paper, the practical engineering of a 420 m PC continuous beam bridge is taken as research object, and an external prestressing reinforcement method proposed to reinforce damaged cracked girder. The paper study structural performance before after reinforcement. heavy vehicle loading test reinforced was carried out. A total three spans were selected, each span selected seven deflection s...

Girders with corrugated steel web are preferred and widely used in recently constructed bridges industrial buildings. Sandwich core girders by adding two plates (skins) to the web. This study aims investigate shear span-to-depth ratio impact on performance of sandwich Three ratios (a/d): 1.0, 1.833 2.5, were examined. The test includes three thickness 30 mm, 60 mm thickness, conventional flat w...

There is growing use of FRP composite materials in the civil infrastructure for rehabilitation of deficient bridge components including deck slabs and girders. However assessment of the effectiveness of rehabilitation over time and monitoring the progression of damage or change in load paths between the structural components, caused by sequential strengthening of the components, has not been un...

Abstract This article presents the performance of cable-stayed bridge by representing a model using ANSYS program under influence concentrated load and then comparing them with experimental results. One was used in analytical, one (harp type 1) length girder (4,500 mm), height pylon (1,480 depth flange for (40 mm). If bridges are constructed balanced cantilever method, stability problem is more...

Benefitting from economic development and technological progress, long-span suspension bridges, with their superior span capacity good economy, have been built in large numbers recent decades. However, the excessive cumulative longitudinal displacement at girder ends process of bridge operation leads to degradation of, fatigue damage to, connecting components. This study aims solve problem an e...