This study deals with unconventional bearing capacity analysis and the procedure of optimizing a two-cell box girder. The generalized model which enables the local stress-strain analysis of multicell girders was developed based on the principle of cross-sectional decomposition. The applied methodology is verified using the experimental data (Djelosevic et al., 2012) for traditionally formed box...

The use of heavier trucks demanded upgrading of a twenty-seven year old bridge in Winnipeg, Manitoba, Canada. Analysis of the precast prestressed concrete girders using the current AASHTO Code indicates a deficiency in the shear capacity. Shear strengthening using Carbon Fibre R_einforced Polymer (CFRP) sheets provides a low-cost solution by increasing the speed of construction and reducing tra...

Numerous cracks have been discovered in the Vårby Bridge near Stockholm, Sweden. All cracks are found at the junctions between the cross girders and the main girders, more specifically, at the welds connecting the vertical web stiffeners to the top flanges of the main girders. The cracks might possibly be causing serious problems if they are allowed to propagate through the entire length of the...

As the stress amplitude in anchorage zone of cable-stayed bridges vary considerably, it is essential to study fatigue-load-bearing capacity structures cable-stayed-bridge girders. In this study, mechanical properties and force-transmission mechanism a built-in double-fixed steel anchor box, as well influence geometric design parameters main pressure plates support on its performance, were studi...

In the mid 1990's the FHWA established a High Performance Concrete (HPC) program aimed at demonstrating the positive effects of utilizing HPC in bridges. Research on the benefits of using high performance concrete for bridges has shown a number of benefits. These include increased span capacities, or wider girder spacings (and hence a fewer number of girders); increased concrete compressive and...

The shear panels of plate girder made from corrugated in the web is investigated this research. A beam attached zone as part an experimental and theoretical investigation into girders. In experiments, seven specimens were tested under two points load. Six them different shape web, last specimen was without corrugation a reference called control. study effected (corrugation plate, thickness with...

Abstract Owning to good mechanical properties, steel–concrete composite (SCC) and prestressed concrete (PC) box girders are the types of elevated structures used most in urban rail transit. However, their vibro-acoustic differences yet be explored depth, while structure-radiated noise is becoming a main concern noise-sensitive environments. In this work, numerical simulation investigate vibrati...

This paper aims at investigating the optimum location of a single longitudinal stiffener having various cross-section types steel plate girders subjected to bending loading. The is found using gradient-based Interior-Point (IP) optimization algorithm. procedure involves linear elastic buckling analysis with finite element method, which coupled aforementioned IP algorithm and used calculate coef...