Results 171 to 180 of about 1,908 (218)

Bridge Deck Replacement of Posttensioned Concrete Box-Girder Bridges

Journal of Bridge Engineering, 2020
Abstract This paper studies the feasibility of replacing damaged deck of posttensioned concrete box-girder bridges without the use of falsework to support the superstructure span.
Youyou Zhang, Y. H. Chai
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Structural Response of Concrete Box Girder Bridge

Journal of the Structural Division, 1973
Results obtained in a study of a large-scale, two-span, four cell reinforced concrete bridge model are presented. The model, which was a 1:2.82 scale replica of a prototype, had overall plan dimensions of 72 ft (21 m) long by 12 ft (3.7 m) wide. The various computer programs used in obtaining theoretical results are described and compared. Experimental
Alexander C. Scordelis, Jack G. Bouwkamp, S. Tanvir Wasti   +2 more
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Prefabrication of concrete box girder bridges

1991
The technologies described in this paper allow the construction of prestressed concrete bridges, precast in a monolithic form both for simply supported and continuous beams. It combines durability, speed of construction and economy. Particular reference is made to construction of a viaduct with a continuous box girder deck under construction in a ...
Gallo, Pellegrino C., Nati, Gabriele
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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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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
openaire   +1 more source

Strengthening Concrete Box Girder Bridges

Journal of Structural Engineering, 1990
There is, at a theoretical level, a direct relationship between the effects of prestressing, temperature, support settlement, and creep redistribution in concrete box girder bridges. At a more practical level, the net effect of thermal gradients or creep redistribution is to impose a positive secondary moment onto the structure, which can be balanced ...
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Ultimate Strength of Concrete Box Girder Bridge

Journal of the Structural Division, 1974
Results obtained in a study of a large-scale, two-span, four-cell reinforced concrete box girder model are presented. The model, which was a 1:2.82 scale replica of a prototype, had overall plan dimensions of 72 ft (21.14 m) long by 12 ft (3.66 m) wide.
Jack G. Bouwkamp, Alexander C. Scordelis, S. Tanvir Wasti   +2 more
openaire   +1 more source

Bridge information models for construction of a concrete box-girder bridge

Structure and Infrastructure Engineering, 2012
Large construction projects involve collaboration among a large number of participants with different specialised knowledge from various construction processes. A readily accessible bridge information model is needed to enable engineers to innovate prefabricated bridge construction.
K. M. Lee, Y. B. Lee, C. S. Shim, K. L. Park   +3 more
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Assessment and identification of concrete box-girder bridges

IABSE Reports, 2019
<p>This work consists in identify and assess the properties related to material, geometry and physic sources, in a pre-stressed concrete bridge through a surrogate model. The use of this mathematical model allows to generate a relationship between bridge properties and its dynamic response, with the purpose to develop a tool to predict the ...
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Steel–Concrete Composite Box Girder Bridges

1999
This chapter focuses on straight steel–concrete composite box-girder bridges. A single box girder with multiple cells is economical for very long spans. Multiple webs reduce the flange shear lag and also share the shear forces. A composite box section usually consists of two webs, a bottom flange, two top flanges and shear connectors welded to the top ...
Yusuf Saleh, Lian Duan
openaire   +1 more source