Full-Scale Testing of Procedures for Assembling Trunnion-Hub-Girder in Bascule Bridges

Besterfield, Glen; Nichani, S.; Kaw, Autar; Eason, Thomas

doi:10.1061/(asce)1084-0702(2003)8:4(204)

Cited by 8 publications

(4 citation statements)

References 4 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Papers describing the replacement of movable spans (Fisher & Robitaille, 2011) and the kinematics of movable bridges (Byers, 2008;Wallner & Pircher, 2007) are examples of studies for movable bridges in general. For bascule bridges, a brief review of the Chicago-type bascule bridge design (Ecale & Lu 1983) and full-scale testing of procedures for assembling trunnion-hub -girder interactions by Besterfield, Nichani, Kaw, and Eason (2003) are important examples. Other than these examples, there are also some studies on lift bridges, mainly related to construction by Ramey (1983), Griggs (2006) and Zhao, Wang, and Pang (2011).…”

Section: Introductionmentioning

confidence: 99%

Critical issues, condition assessment and monitoring of heavy movable structures: emphasis on movable bridges

Çatbaş

Gül

Gokce

et al. 2012

Structure and Infrastructure Engineering

View full text Add to dashboard Cite

In this paper, a relatively less studied class of structures is presented based on the research conducted on Florida's movable bridges over the last several years. Movable bridges consist of complex structural, mechanical and electrical systems that provide versatility to these bridges, but at the same time, create intermittent operational and maintenance challenges. Movable bridges have been designed and constructed for some time; however, there are fewer studies in the literature on movable bridges as compared to other bridge types. In addition, none of these studies provide a comprehensive documentation of issues related to the condition of movable bridge populations in conjunction with possible monitoring applications specific to these bridges. This paper characterises and documents these issues related to movable bridges considering both the mechanical and structural components. Considerations for designing a monitoring system for movable bridges are also presented based on inspection reports and expert opinions. The design and implementation of a monitoring system for a representative bascule bridge are presented along with long-term monitoring data. Various movable bridge characteristics such as opening/closing torque, bridge balance and friction are shown since these are critical for maintenance applications on mechanical components. Finally, the impact of environmental effects (such as wind and temperature) on bridge mechanical characteristics is demonstrated by analysing monitoring data for more than 1000 opening/closing events.

show abstract

Section: Introductionmentioning

confidence: 99%

Critical issues, condition assessment and monitoring of heavy movable structures: emphasis on movable bridges

Çatbaş

Gül

Gokce

et al. 2012

Structure and Infrastructure Engineering

View full text Add to dashboard Cite

show abstract

“…In 2000, this effort was followed by integrating a single research problem [3,4] of assembling fulcrums of bascule bridges into the classroom [5]. This research problem had broad-based use in exemplifying multiple concepts such as interference fits, axisymmetric response problems, transformation of strains and stresses, comparison of failure theories, critical crack length aspects, and effect of temperature dependent thermoelastic properties.…”

Section: Introductionmentioning

confidence: 99%

On introducing approximate solution methods in theory of elasticity

Kaw

2006

Comput. Appl. Eng. Educ.

View full text Add to dashboard Cite

This work presents how approximate solution methods were introduced in a graduate level course of Theory of Elasticity. The three methods introduced are the finite difference method, the finite element method, and the boundary element method. All methods are exemplified by the problem of a thick-walled cylinder subject to internal pressure with an axisymmetric response. Choosing a single problem to introduce the three methods demonstrates accuracy and efficacy of each method.

show abstract

“…The THG assembly is made by using interference fits 5 between the trunnion and the hub, and the hub and the girder. The procedure 6,7 for assembling THG assemblies involves shrinkfitting the trunnion into the hub and then shrink-fitting the trunnion-hub onto the girder ( Step 1: The trunnion is shrunk by immersing it in a cooled medium such as liquid nitrogen or dry-ice/alcohol mixture.…”

Section: Figure 1 Trunnion-hub-girder (Thg) Assemblymentioning

confidence: 99%

“…To prevent the recurrence of these assembly problems, Florida Department of Transportation (FDOT) decided to conduct an investigation 8 by providing a research grant to the Department of Mechanical Engineering at the University of South Florida. For three years, USF conducted a thermal stress analysis 6,7 of the fulcrum assembly procedure by using analytical 9 , numerical 10 , and experimental techniques 11 .…”

Section: Girdermentioning

confidence: 99%

Incorporating A Research Problem In A Numerical Methods Course For Mechanical Engineers

Kaw

2007 Annual Conference &Amp; Exposition Proceedings

View full text Add to dashboard Cite

Florida. He is the author of the textbook-Mechanics of Composite Materials, CRC-LLC Press. With major funding from National Science Foundation, he is developing award winning web-based resources for an undergraduate course in Numerical Methods. He is the recipient of the 2004 CASE Florida Professor of the Year and the 2003 ASEE Archie Higdon Distinguished Mechanics Educator Award. His current scholarly interests include development of instructional technologies, integrating research in classroom, thermal stresses, computational mechanics, and mechanics of nonhomogeneous nanolayers.

show abstract

Full-Scale Testing of Procedures for Assembling Trunnion-Hub-Girder in Bascule Bridges

Cited by 8 publications

References 4 publications

Critical issues, condition assessment and monitoring of heavy movable structures: emphasis on movable bridges

Critical issues, condition assessment and monitoring of heavy movable structures: emphasis on movable bridges

On introducing approximate solution methods in theory of elasticity

Incorporating A Research Problem In A Numerical Methods Course For Mechanical Engineers

Contact Info

Product

Resources

About