The streamline flat steel box girder is broadly used in long span cablesupported bridges all over the world. As one of the most important part of the bridges, its stress level and distribution under various dynamic loads are especially concerned. However, it is difficult to obtain the accurate stress of the steel box girder by common finite element (FE) calculation. The Runyang Suspension Bridg...

This paper presents a stability investigation of a special-shape arch bridge with a span of 180 m. Its structure and mechanics are significantly different from normal arch bridges because of its single arch rib skewing across the girder, its hangers hanging unevenly along the arch rib with different aslant angle, and its arch rib being subjected to massive axial compression force, bending momen...

In this work, a monorail vehicle-bridge coupling (VBC) model capable of accurately considering curve alignment and superelevation is established based on curvilinear moving coordinate system, to study the VBC vibration straddle curved girder bridge relevant factors influencing VBC. While taking Chongqing Jiao Xin line as an example, program compiled using Fortran, where reliability algorithm ve...

A crane bridge is a dominant component of all crane. It imperative to pay attention on its strength features and go through analysis. The introductory part this paper points out characteristics crane, mainly materials used produce the bridge, namely S235 structural steel. set analysis main girder single model in means comparing analytical numerical solutions. calculations take into account load...

Abstract At present, the application of U-beams in urban rail transit is gradually increasing, but researches about bridge structural noise are still insufficient. This article took U-type girder as research object and studied distribution on basis energies different frequency band. Firstly, dynamic response under vehicle load was acquired with combination finite element simulation method field...

Purpose. The aim of this work is to construct an approximate solution stationary oscillations a nonlinear equation with cubic characteristic. design scheme under consideration best corresponds the operating conditions girder structure in event defects supporting parts. In case, longitudinal forces may appear structure. Methods. paper investigates structures small bridges. undamped beam resting ...

A 1/20 scale model of a Y-shaped irregular bridge was designed, and shaking-table tests were performed to simulate its failure mechanism performance characteristics when subjected multidirectional strong earthquake. The results showed that the structure could accelerate in horizontal direction vertical excitation. For both unidirectional excitation, acceleration response pier top more significa...

In steel trapezoidal box girder bridge systems, the U-shaped steel girder is designed to act compositely with the concrete deck to form a closed box for live loading. During the construction stage, however, the behavior is not well understood. The usual practice of assuming the system to be non-composite during construction requires substantial top flange bracing to form a quasi-closed box sect...

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 ...