The Bistrita city bypass crosses obliquely at km 14+162 the Bistrita river and a local road. In the area where the bridge is situated the river has a width of about 50.00m and the local road has 5.00m, being located at 12.00m from the bank of Bistrita. The bridge should provide a roadway that is 7.80m wide and two sidewalks of 1.50m. The challenge is to design a bridge that allows the crossing ...

This paper presents a framework (named Bridge_Sim) that aids contractors in planning bridge deck construction using computer simulation. The proposed framework estimates the time and cost required for construction of bridges' decks. Seven construction methods are included in the proposed framework. These are: cast-in-place on falsework, steel bridge construction, cantilever carriage, pre-cast b...

This paper presents a description of a continuous truss footbridge comprising two spans, one of 140 m and the other 50 m. The bridge crosses the Sant Adria Marina, close to Barcelona. The width of the deck is 6 m and the depth of the two trusses, which form the bridge, range between 6 and 10 m. Main innovations are the use of recycled aggregates for concrete in the approach slab deck, the use o...

The transmission of vibration to the adjacent buildings due to the traffic passing over Ghalemorghi Bridge in Tehran. has caused disruption to the inhabitants of the buildings. In order to investigate the vibration condition of the bridge, a dynamic loading test was performed and the output was analyzed using a non-parametric modal identification approach. In this article, the non-parametric mo...

To estimate the fatigue life of long-span steel bridge more accurately, this paper proposes a method for estimating the fatigue life of long-span bridges by considering vehicle-bridge coupled vibration. Firstly, the universal equation of vehicle-bridge vibration is derived based on triaxial standard multi-scale model of fatigue vehicle and bridge, and relevant program for vehicle-bridge coupled...

Analysis of an aeroelastic bridge system consisting of the fundamental vertical and torsional modes of vibration offers an expeditious assessment of bridge flutter performance. It also produces valuable insight into the multimode coupled bridge response to strong winds. This paper presents closed-form formulations for estimating the modal frequencies, damping ratios, and coupled motions of the ...

This document describes an optimization problem of cable cross section of a cable stayed bridge considering constraints of cable stress and deck displacement. Since the bridge is still in study phase, the geometry and the mechanical characteristics are subjected to changes. In order to avoid creating different structural models, a program was produced to construct a model from geometrical and m...

Pedestrian bridge structures are usually sensitive to the effects of wind due to their relatively high slimness and low weight. The arising forces can excite both oscillation in the direction of the wind and also crosswise torsion-flexure oscillation which can result in a local or (in the case of coupled torsion-flexure oscillation) complete loss of aerodynamic stability of the structure. This ...