This study investigates the seismic behavior of deconstructable composite steel/concrete floor systems consisting of precast concrete planks and deconstructable clamping connections attaching the planks to the steel floor beams. The system is proposed to promote sustainable design of composite steel/concrete floor systems in steel buildings via reuse of the structural steel and concrete compone...

Suspension bridges’ in-plane extended configuration makes them vulnerable to wind-induced vibrations. Vortex shedding is a kind of aerodynamic phenomenon causing bridge vibrate in vertical and torsional modes. Vortex-induced vibrations disturb the bridge’s serviceability limit, which not favorable, long run, they can cause fatigue damage. In this condition, vibration control strategies seem be ...

Abstract An extradosed cable‐stayed bridge employs a structure that combines the main elements of both prestressed box girder and bridge. In to apply optimization, because this type has hybrid nature; bridges have significant additional complexity oversizing [7]. This research paper evaluated optimum depth with pylon height, angle stay cable, effect concrete grade on those three parameters an c...

A three-dimensional non-linear finite-element model (FEM) was constructed using a commercial software (ATENA-Studio) to investigate the transverse load distribution behavior of adjacent precast prestressed concrete box-girder bridges. An innovative connection between box girders used, where post-tensioning applied at top flanges only eliminating need for intermediate diaphragms. The FEM validat...

In this paper, three curved floating bridge concepts with a uniform span of 500 m and different radii curvature are proposed for the crossing coastal waters in Singapore. The girder is supported by 4 pontoons along length two ends connected to shore. Three cross-sections considered. Static analysis first carried out considering bridge's self-weight, water current forces various tidal conditions...

With the development of bridge structures towards being light weight and having a large span , overall flexibility, and, hence, wind sensitivity, increases. Flutter is one pivotal factors considered in design operation stage for long-span cable-stayed bridges due to its devastating impact, often intrigued by relatively low instability caused speed. This paper presents reliability theory-based n...

The economy of the steel truss girder bridge superstructure, used extensively in medium and long span ranges, is affected by many factors such as the cost of material, dictated by the configuration and depth of truss, shape and size of members, and cost of fabrication. Most conventional methods of optimization deal with only member optimization assuming only continuous design variables, leading...

The aim of this paper is to present proper finite element (FE) models which can predict the dynamic characteristics and behaviour of a railway bridge under dynamic train loading for the purposes of fatigue design and assessment. As a case study, an existing six-span continuous welded plate girder railway bridge in Stockholm is investigated. A number of detailed three-dimensional FE models of th...