Journal of Bridge Engineering: Recent submissions
Now showing items 2841-2860 of 3153
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Load Distribution Factors in Simply Supported Skew Bridges
(American Society of Civil Engineers, 2003)Simply supported bridges consisting of five I-section concrete girders are analyzed using the finite-element method. The main parameters of this study are: girder spacing (1.8–2.7 m), span length (25–35 m), skew angle ... -
Live-Load Distribution Factors for Concrete Box-Girder Bridges
(American Society of Civil Engineers, 2003)The current American Association of State Highway and Transportation Officials (AASHTO) Load and Resistance Factor Design (LRFD) Specifications impose fairly strict limits on the use of its live-load distribution factor ... -
Inspection and Process of Tension of Cables of General Rafael Urdaneta Bridge
(American Society of Civil Engineers, 2003)In 1997 and 1999, inspection works were carried out in the 384 cable stays of the six central piers of General Rafael Urdaneta Bridge, located in Maracaibo, Venezuela. Inspection indicated the presence of water and significant ... -
Awards: Nominations Sought for ASCE and SEI Awards
(American Society of Civil Engineers, 2003) -
Increasing the Load Capacity of Suspension Bridges
(American Society of Civil Engineers, 2003)There is a tendency for traffic loads to increase with the passage of time. It is not uncommon, therefore, for bridges to be strengthened and/or widened or sometimes to have lanes or even complete decks added. A few bridges ... -
Finite-Element Modeling of Heat-Curved I-Girders
(American Society of Civil Engineers, 2003)Heat curving is extensively used for fabricating structural steel girders for bridges. Current American Association of State Highway and Transportation Officials (AASHTO) specifications limit usage to Grade 345 steel -
Full-Scale Testing of Procedures for Assembling Trunnion-Hub-Girder in Bascule Bridges
(American Society of Civil Engineers, 2003)To simulate a trunnion-hub-girder (THG) assembly for bascule bridges, two full-scale laboratory tests were conducted for quantifying stresses at previously observed failure locations and for identifying a favorable assembly ... -
Noncontact Photogrammetric Measurement of Vertical Bridge Deflection
(American Society of Civil Engineers, 2003)This paper reports on the results from a study of vertical deflection measurement of bridges using digital close-range terrestrial photogrammetry (DCRTP). The study consisted of a laboratory and two field exercises. In the ... -
Assessment of Performance of Seismic Isolation System of Bolu Viaduct
(American Society of Civil Engineers, 2003)The Bolu viaduct is a 2.3-km-long seismically isolated structure that was nearly complete when it was struck by the 1999 Duzce earthquake in Turkey. It suffered complete failure of the seismic isolation system and narrowly ... -
Stability of Slender Webs of Prestressed Concrete Box-Girder Bridges
(American Society of Civil Engineers, 2003)Long-span, prestressed concrete, box-girder bridges are haunched and have a span-to-depth ratio of 15 to 20 at the piers. This leads to slender webs, particularly for bridges built with high performance concrete. For girders ... -
Natural Frequency of Railway Girder Bridges under Vehicle Loads
(American Society of Civil Engineers, 2003)To investigate the natural frequency of a railway girder bridge under vehicle loads, two methods are presented. First, the natural frequency of a railway girder bridge under vehicle loads is obtained by solution of the ... -
Nonlinear Finite-Element Analysis for Highway Bridge Superstructures
(American Society of Civil Engineers, 2003)The most popular type of bridge in service today is the concrete deck on steel-girder composite bridge. A finite-element model is built to analyze the superstructure of this type of bridge under working load conditions. ... -
Full-Scale Tests of Seismic Cable Restrainer Retrofits for Simply Supported Bridges
(American Society of Civil Engineers, 2003)Many parts of the central and southeastern United States have recently begun initiating seismic retrofit programs for bridges on major interstate highways. One of the most common retrofit strategies is to provide cable ... -
Design for Shear in Curved Composite Multiple Steel Box Girder Bridges
(American Society of Civil Engineers, 2003)Modern highway bridges are often subject to tight geometric restrictions and, in many cases, must be built in curved alignment. These bridges may have a cross section in the form of a multiple steel box girder composite ... -
Assessment of Highway Bridge Upgrading by Dynamic Testing and Finite-Element Model Updating
(American Society of Civil Engineers, 2003)The Land Transport Authority of Singapore has a continuing program of highway bridge upgrading for refurbishing and strengthening bridges to allow for increasing vehicle traffic and increasing axle loads. One subject of ... -
Unbonded Posttensioned Concrete Bridge Piers. I: Monotonic and Cyclic Analyses
(American Society of Civil Engineers, 2003)The monotonic and cyclic behavior of a proposed unbonded, posttensioned concrete bridge pier system is studied using finite-element analyses. A procedure to evaluate seismic capacities based on results from the monotonic ... -
Unbonded Posttensioned Concrete Bridge Piers. II: Seismic Analyses
(American Society of Civil Engineers, 2003)The seismic response characteristics of a proposed unbonded posttensioned concrete bridge-pier system are evaluated. Time-history analyses are carried out on prototype designs of single-column piers and two-column bents ... -
Determining Appropriate Fatigue Inspection Intervals for Steel Bridge Members
(American Society of Civil Engineers, 2003)As part of the National Bridge Inspection Standards, owners of public bridge structures are required to perform a Fracture Critical Inspection on steel superstructures that contain primary structural elements having no ... -
Measurement and Analysis of Distortion-Induced Fatigue in Multigirder Steel Bridges
(American Society of Civil Engineers, 2003)Fatigue damage to multigirder steel bridges on skew can result from distortion caused by differential deflection of adjacent girders that impose out-of-plane bending of girder web gaps. Existing design procedures give ... -
Optimization of Cable Tensioning in Cable-Stayed Bridges
(American Society of Civil Engineers, 2003)During the structural analysis of cable-stayed bridges, some specific problems arise that are not common in other types of bridges. One of these problem is the derivation of an optimal sequence for the tensioning of the ...