Results 141 to 150 of about 776 (186)

Thermal Effects on Box Girder Concrete Bridges

Key Engineering Materials, 2017
Thermal load, especially vertical temperature gradient, is an important factor that should be considered during the bridge design procedure. In the world, several researches focusing on temperature gradient was made, mostly in USA and China, but only a few analyzed actual temperature gradients measuring at European bridges.
Martin Moravcik, Lukas Krkoska
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Web design of box girders concrete bridges

Engineering Structures, 2013
Abstract The purpose of this paper is to introduce a new design approach including the Ultimate Limit State (ULS) due to fatigue. Different criteria for the design of those webs are compared by means of shear-bending moment interaction diagrams, as an attempt to identify the most realistic one.
Ricardo Gaspar, Fernando Rebouças Stucchi   +1 more
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Concrete Box-Girder Bridges as Sandwich Plates

Journal of the Structural Division, 1970
A relatively simple, accurate method for the complete determination of internal moments, shears, and deflections in concrete box girder bridges with statically applied external vertical loads has been developed and is described. The method of analysis used is based on the concept of replacing the actual structure by an equivalent uniform plate which ...
James G. Arendts, Wallace W. Sanders
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Prestressed Concrete Box Girders Made from Precast Concrete Unsymmetrical Sections

PCI Journal, 2004
This paper describes an innovative concept for assembling prestressed concrete box girders from a combination of precast, prestressed unsymmetrical sections and I-sections. This solution can provide many advantages over typical single-casting box sections.
Zhongguo (John) Ma, Maher K. Tadros, Chuanbing Sun   +2 more
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Approximate Analysis of Concrete Box Girder Bridges

Journal of Structural Engineering, 1988
The purpose of this paper is to show that the actual three-dimensional behavior of a box-girder bridge as predicted by a folded-plate, finite-strip, or finite-element analysis can be approximated by using some simple membrane equations in conjunction with a plane-frame analysis.
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Preliminary Design System for Concrete Box Girder Bridges

Journal of Computing in Civil Engineering, 2001
A neural network-based design system is presented in this paper for preliminary design of concrete box girder bridges. The system is based on a loose coupling model that integrates the artificial neural network and the fuzzy network to perform the task of noisy data filtering, knowledge extraction, and candidate synthesis.
Zhiye Zhao, Wenwei He, Sau Cheong Fan
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Folded plate action for concrete box girder bridges

IABSE Congress Reports, 2016
<p>As already described in begin eighties in Structural Engineering Document 1 “Concrete Box-girder Bridges” [1] the Folded Plate Action of torsion stiff concrete box-girder bridges cannot be disregarded. But nowadays many designs are made by 3D Finite Element Analysis using 2D plate/shell elements, although the number of loading cases described ...
Rob Vergoossen, Peter Hagenaars, Eelco de Winter, Martijn de Boer   +3 more
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Overlay for Concrete Segmental Box-Girder Bridges

Journal of Bridge Engineering, 2000
Concrete overlay cracking and delamination were noticed on a concrete segmental box-girder bridge. Analytical investigation and field and laboratory examinations were conducted to identify the major factors causing the defects. The time-dependent stress distribution and its change in the overlay and along the interface between the overlay and the ...
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Transverse assessment of a concrete box girder bridge

Proceedings of the Institution of Civil Engineers - Bridge Engineering, 2017
This paper looks at the beneficial effects of geometric arching from haunches, web continuity and compressive membrane action in the design and assessment of box girder top slabs. The paper initially reviews tests relevant to arching action in box girders and then analyses recent tests on box girder slab strips.
Abdullah Zaid, David Collings
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Structural Redundancy of Prestressed Concrete Box Girder Bridges

Transportation Research Record: Journal of the Transportation Research Board, 2016
Bridges are usually designed and evaluated on the basis of member strength and serviceability criteria; however, they are expected to have sufficient levels of reserve strength and multiple paths to resist collapse should any of their members get damaged or exceed their nominal strength capacity.
Jian Yang, O. Murat Hamutcuoglu, Yingsheng Ni, Michel Ghosn   +3 more
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