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Evaluation Of The Need For Longitudinal Median Joints In Bridge Decks On Dual Structures
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Book Synopsis Evaluation of the Need for Longitudinal Median Joints in Bridge Decks on Dual Structures by : Brent M. Phares
Download or read book Evaluation of the Need for Longitudinal Median Joints in Bridge Decks on Dual Structures written by Brent M. Phares and published by . This book was released on 2015 with total page 99 pages. Available in PDF, EPUB and Kindle. Book excerpt: The primary objective of this project was to determine the effect of bridge width on deck cracking in bridges. Other parameters, such as bridge skew, girder spacing and type, abutment type, pier type, and number of bridge spans, were also studied. To achieve the above objectives, one bridge was selected for live-load and long-term testing. The data obtained from both field tests were used to calibrate a three-dimensional (3D) finite element model (FEM). Three different types of loading -- llive loading, thermal loading, and shrinkage loading -- were applied. The predicted crack pattern from the FEM was compared to the crack pattern from bridge inspection results. A parametric study was conducted using the calibrated FEM. The general conclusions/recommendations are as follows: -- Longitudinal and diagonal cracking in the deck near the abutment on an integral abutment bridge is due to the temperature differences between the abutment and the deck. Although not likely to induce cracking, shrinkage of the deck concrete may further exacerbate cracks developed from thermal effects. -- Based upon a limited review of bridges in the Iowa DOT inventory, it appears that, regardless of bridge width, longitudinal and diagonal cracks are prevalent in integral abutment bridges but not in bridges with stub abutments. -- The parametric study results show that bridge width and skew have minimal effect on the strain in the deck bridge resulting from restrained thermal expansion. -- Pier type, girder type, girder spacing, and number of spans also appear to have no influence on the level of restrained thermal expansion strain in the deck near the abutment.
Book Synopsis On Site Evaluation of Bridge Deck Expansion Joints by : Moussa Issa
Download or read book On Site Evaluation of Bridge Deck Expansion Joints written by Moussa Issa and published by . This book was released on 1996 with total page 287 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Steel Bridge Decks by : J. R. Cuninghame
Download or read book Steel Bridge Decks written by J. R. Cuninghame and published by . This book was released on 1982 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Field Comparison of the Installation and Cost of Placement of Epoxy-coated and MMFX 2 Steel Deck Reinforcement by : Stephen R. Sharp
Download or read book Field Comparison of the Installation and Cost of Placement of Epoxy-coated and MMFX 2 Steel Deck Reinforcement written by Stephen R. Sharp and published by . This book was released on 2009 with total page 79 pages. Available in PDF, EPUB and Kindle. Book excerpt: As part of the Innovative Bridge Research and Construction Program (IBRCP), this study was conducted to use the full-scale construction project of the Route 123 Bridge over the Occoquan River in Northern Virginia to identify and compare any differences in the installation practices and comprehensive placement costs of epoxy-coated reinforcing steel (ECR) and MMFX 2. The study also established a baseline of the condition of the bridge upon completion of construction and initial maintenance. During construction, two separate bridge decks were built and a raised median was used to cover the longitudinal joint between the two decks. The southbound deck was built using ECR, and the northbound deck was built using corrosion-resistant reinforcing steel (CRR), which in this case was MMFX 2. To construct the two decks required 576,823 lb of ECR and 674,447 lb of MMFX 2. The concrete strength reached 100% of the design strength within 4 days for the northbound deck. The average thickness of the decks was 8.76 in for the southbound deck and 9.15 in for the northbound deck. Stay-in-place forms were used to construct Spans D through G for both decks; Spans A through C were constructed using formwork that was removed to expose the underside of the decks. Upon completion of construction, an in-depth survey of both decks was conducted. Cracks were present on both decks, and a recent visual analysis of the underside of the decks indicated that moisture is able to penetrate to the bottom of the concrete. Half-cell potential measurements indicated most of the MMFX 2 had reached a passive condition, which presently indicates an insignificant corrosion rate. Resistivity measurements on the northbound deck indicated that if the steel were to become active, it has a low probability of significant corrosion. Chloride analysis indicated salt is penetrating the upper region of the concrete, but the regions closer to the steel have a lower chloride concentration. Based on these findings, the two decks should allow a fair comparison of corrosion susceptibility for the two types of reinforcing steel used. Inclusion of the labor cost to place ECR in the southbound deck and unanticipated direct costs raised the in-place unit cost of ECR from $0.51/lb to $0.90/lb. Inclusion of the labor cost to place MMFX 2 in the northbound deck raised the in-place unit cost of MMFX 2 from $0.78/lb to $0.87/lb. The cracks in the ECR side were sealed as part of the original construction. By including the indirect labor costs to VDOT and road user costs to the public imposed by a crack sealing operation on the southbound deck, the comprehensive in-place cost of ECR more than quadrupled its unit bid price to a final in-place cost range of $2.34/lb to $2.90/lb, making ECR much less cost-effective in retrospect than it appeared to be at the planning stage of the project. This hidden cost increase for ECR supports the recent decision by VDOT to pursue CRR rather than ECR for future construction and highlights the need to consider at least direct sealing costs when comparing ECR with CRR. The study recommends that VDOT's Structure & Bridge Division (1) continue the implementation of the recently approved CRR specification, and (2) be attentive to the possibility that polymer-coated steel bars may be costlier per unit than uncoated bars for reasons of special handling and transport requirements as well as unanticipated preventive maintenance. Further, the Virginia Transportation Research Council should monitor the Route 123 Bridge periodically to assess the relative conditions of the ECR and MMFX 2 reinforcement over time.
Book Synopsis Inspection, Evaluation and Maintenance of Suspension Bridges Case Studies by : Sreenivas Alampalli
Download or read book Inspection, Evaluation and Maintenance of Suspension Bridges Case Studies written by Sreenivas Alampalli and published by CRC Press. This book was released on 2015-11-05 with total page 316 pages. Available in PDF, EPUB and Kindle. Book excerpt: An Insiders' Guide to Inspecting, Maintaining, and Operating BridgesSuspension bridges are graceful, aesthetic, and iconic structures. Due to their attractiveness and visibility, they are well-known symbols of major cities and countries in the world. They are also essential form of transportation infrastructure built across large bodies of water. D
Book Synopsis Load Testing of Bridges: Two Volume Set by : Eva Lantsoght
Download or read book Load Testing of Bridges: Two Volume Set written by Eva Lantsoght and published by CRC Press. This book was released on 2022-07-30 with total page 774 pages. Available in PDF, EPUB and Kindle. Book excerpt: Load Testing of Bridges, featuring contributions from almost fifty authors from around the world across two interrelated volumes, deals with the practical aspects, the scientific developments, and the international views on the topic of load testing of bridges. Volume 12, Load Testing of Bridges: Current practice and Diagnostic Load Testing, starts with a background to bridge load testing, including the historical perspectives and evolutions, and the current codes and guidelines that are governing in countries around the world. The second part of the book deals with preparation, execution, and post-processing of load tests on bridges. The third part focuses on diagnostic load testing of bridges. Volume 13, Load Testing of Bridges: Proof Load Testing and the Future of Load Testing, focuses first on proof load testing of bridges. It discusses the specific aspects of proof load testing during the preparation, execution, and post-processing of such a test (Part 1). The second part covers the testing of buildings. The third part discusses novel ideas regarding measurement techniques used for load testing. Methods using non-contact sensors, such as photography- and video-based measurement techniques are discussed. The fourth part discusses load testing in the framework of reliability-based decision-making and in the framework of a bridge management program. The final part of the book summarizes the knowledge presented across the two volumes, as well as the remaining open questions for research, and provides practical recommendations for engineers carrying out load tests. This work will be of interest to researchers and academics in the field of civil/structural engineering, practicing engineers and road authorities worldwide.
Book Synopsis Bridge Bearings and Expansion Joints by : D J Lee
Download or read book Bridge Bearings and Expansion Joints written by D J Lee and published by CRC Press. This book was released on 1994-11-03 with total page 221 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides a guide to movement and restraint in bridges for bridge engineers and will enable them to draw up design calculations and specifications for effective installation, and satisfactory service and durability of bearings and joints. It has been fully revised and updated in line with current codes and design practice, modern developme
Book Synopsis Hennepin Ave Mississippi River Bridge Replacement, Minneapolis by :
Download or read book Hennepin Ave Mississippi River Bridge Replacement, Minneapolis written by and published by . This book was released on 1986 with total page 458 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Structural Engineering Series by : United States. Federal Highway Administration
Download or read book Structural Engineering Series written by United States. Federal Highway Administration and published by . This book was released on 1976 with total page 586 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Evaluation of Bridge Deck Protective Strategies by : Khossrow Babaei
Download or read book Evaluation of Bridge Deck Protective Strategies written by Khossrow Babaei and published by Transportation Research Board National Research. This book was released on 1987 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Analysis and Optimum Design of Metal Structures by : J Farkas
Download or read book Analysis and Optimum Design of Metal Structures written by J Farkas and published by CRC Press. This book was released on 2020-12-18 with total page 376 pages. Available in PDF, EPUB and Kindle. Book excerpt: Detailing a number of structural analysis problems such as residual welding stresses and distortions and behaviour of thin-walled rods loaded in bending, this text also explores mathematical function minimization methods, expert systems and optimum design of welded box beams.
Book Synopsis Design, Assessment, Monitoring and Maintenance of Bridges and Infrastructure Networks by : Fabio Biondini
Download or read book Design, Assessment, Monitoring and Maintenance of Bridges and Infrastructure Networks written by Fabio Biondini and published by Routledge. This book was released on 2020-08-14 with total page 198 pages. Available in PDF, EPUB and Kindle. Book excerpt: Relevant advances have been accomplished by the scientific community and engineering profession in the design, assessment, monitoring, maintenance, and management of sustainable and resilient bridge structures and infrastructures. These advances have been presented and discussed at The Sixth International Conference on Bridge Maintenance, Safety And Management (IABMAS 2012), held in Stresa, Italy, from 8 to 11 July 2012 (http://www.iabmas2012.org). IABMAS 2012 has been organised on behalf of the International Association for Bridge Maintenance And Safety (IABMAS) under the auspices of Politecnico di Milano. This book collects the extended versions of selected papers presented at IABMAS 2012 and invited papers originally published in a Special Issue of Structure and Infrastructure Engineering. These papers provide significant contributions to the process of making more rational decisions in bridge design, assessment, monitoring and maintenance. The editors would like to thank the authors for their contributions and hope that this collection of papers will represent a valuable reference for scientific research and engineering applications in the fields of design, assessment, monitoring, and maintenance of bridges and infrastructure networks.
Author :HNTB Corporation, Genesis Structures Inc, Structural Engineering Associates, and Iowa State University Publisher :Transportation Research Board ISBN 13 :0309274109 Total Pages :976 pages Book Rating :4.3/5 (92 download)
Book Synopsis Innovative Bridge Designs for Rapid Renewal by : HNTB Corporation, Genesis Structures Inc, Structural Engineering Associates, and Iowa State University
Download or read book Innovative Bridge Designs for Rapid Renewal written by HNTB Corporation, Genesis Structures Inc, Structural Engineering Associates, and Iowa State University and published by Transportation Research Board. This book was released on with total page 976 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report from the second Strategic Highway Research Program (SHRP 2), which is administered by the Transportation Research Board of the National Academies, documents the development of standardized approaches to designing and constructing complete bridge systems for rapid renewals.
Book Synopsis Single Lane Live Load Distribution Factor for Decked Precast/prestressed Concrete Girder Bridges by : John Zhongguo
Download or read book Single Lane Live Load Distribution Factor for Decked Precast/prestressed Concrete Girder Bridges written by John Zhongguo and published by . This book was released on 2005 with total page 448 pages. Available in PDF, EPUB and Kindle. Book excerpt: The live load distribution factor (DF) equations provided by AASHTO-LRFD for the decked precast/prestressed concrete (DPPC) girder bridge system do not differentiate between a single or multilane loaded condition. This practice results in a single lane load rating penalty for DPPC girder bridges. The objective of this project is to determine DF equations which accurately predict the distribution factor of the DPPC girder bridge system when it is only subjected to single lane loading. Eight DPPC girder bridges were instrumented. Each bridge was loaded with a single load vehicle to simulate the single lane loaded condition. The experimental data was used to calibrate 3D FE models and 2D grillage models of the DPPC girder bridge system. The calibrated models were used to conduct a parametric study of the DPPC girder bridge system subjected to a single lane loaded condition. Two sets of new equations that describe the single lane loaded distribution factor for both shear and moment forces of these bridges are proposed and compared with AASHTOLRFD DF equations.
Book Synopsis ACI Manual of Concrete Practice by : American Concrete Institute
Download or read book ACI Manual of Concrete Practice written by American Concrete Institute and published by . This book was released on 2002 with total page 1068 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Adjacent Precast Concrete Box Beam Bridges by : H. G. Russell
Download or read book Adjacent Precast Concrete Box Beam Bridges written by H. G. Russell and published by Transportation Research Board. This book was released on 2009 with total page 86 pages. Available in PDF, EPUB and Kindle. Book excerpt: At head of title: National Cooperative Highway Research Program.
Author :FIB – International Federation for Structural Concrete Publisher :FIB - Féd. Int. du Béton ISBN 13 :8889972068 Total Pages :804 pages Book Rating :4.8/5 (899 download)
Book Synopsis 2nd fib Congress in Naples Italy Vol2 by : FIB – International Federation for Structural Concrete
Download or read book 2nd fib Congress in Naples Italy Vol2 written by FIB – International Federation for Structural Concrete and published by FIB - Féd. Int. du Béton. This book was released on 2006-06-01 with total page 804 pages. Available in PDF, EPUB and Kindle. Book excerpt:
