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Author : Hani H. Nassif
Publisher :
ISBN 13 :
Total Pages : 84 pages
Book Rating : 4.E/5 ( download)
Download or read book Finite Element Modeling of Bridge Approach and Transition Slabs written by Hani H. Nassif and published by . This book was released on 2002 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : New Jersey. Department of Transportation. Division of Research and Technology
Publisher :
ISBN 13 :
Total Pages : 4 pages
Book Rating : 4.:/5 (567 download)
Download or read book Finite Element Modeling of Bridge Approach and Transition Slabs written by New Jersey. Department of Transportation. Division of Research and Technology and published by . This book was released on 2002 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Sujata Roy
Publisher :
ISBN 13 :
Total Pages : 188 pages
Book Rating : 4.:/5 (616 download)
Download or read book Nonlinear Finite Element Analysis of Reinforced Concrete Bridge Deck/bridge Approach Slab Using ABAQUS written by Sujata Roy and published by . This book was released on 2005 with total page 188 pages. Available in PDF, EPUB and Kindle. Book excerpt: A bridge approach slab serves as a structural slab to bridge any void that is created by any differential settlement between the bridge structure and the approach embankment. It provides a gradual transition from the pavement into the bridge. The primary causes of approach slab failures are undermining, settlement and cracking. Undermining and settlement of the slab can be treated by either mud jacking or by pumping grout material to fill the voids beneath the slab. Transverse and longitudinal cracking leads to distress of the slab and reduces its life expectancy. Repair and rehabilitation of the system is a heavy financial burden on the state department of transportation. This dissertation aims in mitigating the causes of cracking and also location of cracks by doing a finite element analysis of the slab. The factors affecting the cracks has also been studied. This study helps prove the utility of finite element analysis for reinforced concrete structures.
Author : M.S. Cheung
Publisher : CRC Press
ISBN 13 : 9780419191506
Total Pages : 374 pages
Book Rating : 4.1/5 (915 download)
Download or read book Finite Strip Analysis of Bridges written by M.S. Cheung and published by CRC Press. This book was released on 1996-09-05 with total page 374 pages. Available in PDF, EPUB and Kindle. Book excerpt: In-depth, comprehensive and up-to-date information on the powerful finite strip method of analysis of bridges. It is in three parts. The first introduces the method and gives the necessary background. The second explains the evolution of the method and the third part provides detailed information on the application of the method to highway bridges.
Author : Rami Ibrahim Jabakhanji
Publisher :
ISBN 13 :
Total Pages : 216 pages
Book Rating : 4.:/5 (786 download)
Download or read book Finite Element Analysis of Concrete Solid Slab Bridges written by Rami Ibrahim Jabakhanji and published by . This book was released on 1999 with total page 216 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report presents an investigation of the behavior of simply supported, multi-lane, reinforced concrete solid slab bridges using the finite element method. Solid slab bridges have a behavior pattern that falls between one-way slab behavior and two-way slab behavior. Geometric parameters such as: span length, thickness of slab, number of lanes, presence of shoulders, and the location of trucks, affect the behavioral pattern of solid slab bridges. Therefore, this study will investigate the effect of these factors by analyzing one-lane, two-lane, three-lane, and four-lane bridges, with or without shoulders, each having four different span lengths. Bridges were fully loaded (one AASHTO HS20 truck in each lane). Loads were either centered in every lane, or located towards one edge of the slab. In addition, all the slab bridges with shoulders were over-loaded by assuming a disabled truck on one edge of the bridge in combination with the other design trucks stationed side by side; this combination produces the worst loading conditions on the bridge. Design trucks were positioned in the longitudinal direction in order to produce the maximum positive bending moment.--The finite element method is proposed to analyze the solid slab bridges by using the structural analysis program SAP90. The research focussed on evaluating the maximum lateral bending moment distribution over the critical cross-section of the bridges. The results of this study were used to assess the design approach currently employed by the American Association of State Highway and Transportation Officials (AASHTO) " Standard Specifications for Highway Bridges (1996)."
Author : Chunsheng Cai
Publisher :
ISBN 13 :
Total Pages : 158 pages
Book Rating : 4.3/5 (555 download)
Download or read book Determination of Interaction Between Bridge Concrete Approach Slab and Embankment Settlement written by Chunsheng Cai and published by . This book was released on 2005 with total page 158 pages. Available in PDF, EPUB and Kindle. Book excerpt: The main objective of this research is to correlate the deformation and internal force of the approach slab with the approach embankment settlements and the approach slab parameters such as length and thickness. Finite element analysis was carried out in the present study. This correlation will be used to evaluate the effectiveness of approach slabs and develop guidelines for their structural design. This information will also help determine when settlement controls are necessary. While flat approach slabs may be used for some short span applications, longer span lengths would require very thick slabs. In such cases, ribbed approach slabs (similar to slab-on-beam bridge decks) are proposed in the present study because they provide advantages over the flat slabs. Based on finite element analysis, internal forces and deformations of ribbed slabs were predicted and their designs were conducted. In addition, special studies on a few issues that were not included in the original scope of work were conducted. These special studies including investigating (1) the skew angle effects and the applicability of the developed methodology for right approach slabs to skewed approach slabs; (2) the failure mode/mechanism of the approach slab end and the abutment connection; (3) the applicability of the developed methodology to AASHTO LRFD highway loads; and (4) rating of the developed approach slabs in terms of special trucks.
Author : Ehab Ellobody
Publisher : Butterworth-Heinemann
ISBN 13 : 0124173039
Total Pages : 683 pages
Book Rating : 4.1/5 (241 download)
Download or read book Finite Element Analysis and Design of Steel and Steel–Concrete Composite Bridges written by Ehab Ellobody and published by Butterworth-Heinemann. This book was released on 2014-05-30 with total page 683 pages. Available in PDF, EPUB and Kindle. Book excerpt: In recent years, bridge engineers and researchers are increasingly turning to the finite element method for the design of Steel and Steel-Concrete Composite Bridges. However, the complexity of the method has made the transition slow. Based on twenty years of experience, Finite Element Analysis and Design of Steel and Steel-Concrete Composite Bridges provides structural engineers and researchers with detailed modeling techniques for creating robust design models. The book's seven chapters begin with an overview of the various forms of modern steel and steel–concrete composite bridges as well as current design codes. This is followed by self-contained chapters concerning: nonlinear material behavior of the bridge components, applied loads and stability of steel and steel–concrete composite bridges, and design of steel and steel–concrete composite bridge components. - Constitutive models for construction materials including material non-linearity and geometric non-linearity - The mechanical approach including problem setup, strain energy, external energy and potential energy), mathematics behind the method - Commonly available finite elements codes for the design of steel bridges - Explains how the design information from Finite Element Analysis is incorporated into Building information models to obtain quantity information, cost analysis
Author : Ehab Ellobody
Publisher : Elsevier
ISBN 13 : 044318996X
Total Pages : 722 pages
Book Rating : 4.4/5 (431 download)
Download or read book Finite Element Analysis and Design of Steel and Steel–Concrete Composite Bridges written by Ehab Ellobody and published by Elsevier. This book was released on 2023-01-25 with total page 722 pages. Available in PDF, EPUB and Kindle. Book excerpt: This second edition of Finite Element Analysis and Design of Steel and Steel-Concrete Composite Bridges is brought fully up-to-date and provides structural engineers, academics, practitioners, and researchers with a detailed, robust, and comprehensive combined finite modeling and design approach. The book's eight chapters begin with an overview of the various forms of modern steel and steel-concrete composite bridges, current design codes (American, British, and Eurocodes), nonlinear material behavior of the bridge components, and applied loads and stability of steel and steel-concrete composite bridges. This is followed by self-contained chapters concerning design examples of steel and steel-concrete composite bridge components as well as finite element modeling of the bridges and their components. The final chapter focuses on finite element analysis and the design of composite highway bridges with profiled steel sheeting. This volume will serve as a valuable reference source addressing the issues, problems, challenges, and questions on how to enhance the design of steel and steel-concrete composite bridges, including highway bridges with profiled steel sheeting, using finite element modeling techniques. - Provides all necessary information to understand relevant terminologies and finite element modeling for steel and composite bridges - Discusses new designs and materials used in highway and railway bridge - Illustrates how to relate the design guidelines and finite element modeling based on internal forces and nominal stresses - Explains what should be the consistent approach when developing nonlinear finite element analysis for steel and composite bridges - Contains extensive case studies on combining finite element analysis with design for steel and steel-concrete composite bridges, including highway bridges with profiled steel sheeting
Author : Wai-Fah Chen
Publisher : CRC Press
ISBN 13 : 1482255030
Total Pages : 3130 pages
Book Rating : 4.4/5 (822 download)
Download or read book Bridge Engineering Handbook, Five Volume Set written by Wai-Fah Chen and published by CRC Press. This book was released on 2014-01-24 with total page 3130 pages. Available in PDF, EPUB and Kindle. Book excerpt: Over 140 experts, 14 countries, and 89 chapters are represented in the second edition of the Bridge Engineering Handbook. This extensive collection provides detailed information on bridge engineering, and thoroughly explains the concepts and practical applications surrounding the subject, and also highlights bridges from around the world.Published
Author : Wai-Fah Chen
Publisher : CRC Press
ISBN 13 : 1439852294
Total Pages : 734 pages
Book Rating : 4.4/5 (398 download)
Download or read book Bridge Engineering Handbook written by Wai-Fah Chen and published by CRC Press. This book was released on 2014-01-24 with total page 734 pages. Available in PDF, EPUB and Kindle. Book excerpt: Over 140 experts, 14 countries, and 89 chapters are represented in the second edition of the Bridge Engineering Handbook. This extensive collection highlights bridge engineering specimens from around the world, contains detailed information on bridge engineering, and thoroughly explains the concepts and practical applications surrounding the subjec
Author : Ronaldo Luna
Publisher :
ISBN 13 :
Total Pages : 212 pages
Book Rating : 4.:/5 (554 download)
Download or read book Evaluation of Bridge Approach Slabs, Performance and Design written by Ronaldo Luna and published by . This book was released on 2003 with total page 212 pages. Available in PDF, EPUB and Kindle. Book excerpt: The design changes in the 1990s to bridge approaches resulted in approach slabs of about 8m in length supported at one end on the bridge abutment and at the other by a sleeper beam resting on the embankment. These slabs have not performed adequately due primarily to excessive deformation of the foundation and fill soils under the slab and sleeper beam. Survey questionnaires were administered for resident engineers in MoDOT and neighboring states to assess overall performance. Two bridge sites were selected for more detailed study of the deformation mechanisms. Analyses involving modeling using a finite element method program were conducted using soil properties obtained from drilling, sampling and laboratory testing at the study sites. Conclusions and recommendations are in the following categories: initiating programmatic instrumentation and monitoring plans for approach embankments; enhanced drilling, sampling and analysis at locations of future embankments; geosynthetic reinforcement of the embankment; staged construction; separating grading and paving contract; abutment and drainage details; and improved compaction specifications.
Author : Guenter Axel Rombach
Publisher : Thomas Telford
ISBN 13 : 9780727732743
Total Pages : 302 pages
Book Rating : 4.7/5 (327 download)
Download or read book Finite Element Design of Concrete Structures written by Guenter Axel Rombach and published by Thomas Telford. This book was released on 2004 with total page 302 pages. Available in PDF, EPUB and Kindle. Book excerpt: In Finite Element Design of Concrete Structures: practical problems and their solutions the author addresses this blind belief in computer results by offering a useful critique that important details are overlooked due to the flood of information from the output of computer calculations. Indeed, errors in the numerical model may lead in extreme cases to structural failures as the collapse of the so-called Sleipner platform has demonstrated.
Author : Jeong Bok Seo
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (66 download)
Download or read book The Bump at the End of the Bridge written by Jeong Bok Seo and published by . This book was released on 2005 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: A number of recently constructed bridge approach slabs using an articulation at mid span and the wide flange terminal anchorage system have experienced settlement at their expansion joints. This problem is more commonly referred to as the bump at the end of the bridge. This study investigated reasons for the bumps and recommended ways to improve the current situation. To find out possible causes of the bridge approach slab problem, literature review, questionnaire survey, and a visual inspection for 18 Houston sites were conducted. Based on the results, two bridge sites in Houston, Texas, were selected for detailed investigation. An extensive series of laboratory and field tests were performed at each site. The main causes of bump at two study sites were compression of embankment soil and natural soil, and poor compaction of embankment soil. The finite-element computer program ABAQUS was used to evaluate behavior of the current approach slab design and of a possibly more effective design. The results show that the transition zone is about 12 m with 80 percent of the maximum settlement occurring in the first 6 m for a uniform load case and the optimum width of sleeper and support slabs is 1.5 m. A new approach slab which is 6 m long and has one span from the abutment to a sleeper slab was proposed based on accumulated data. It is designed to carry the full traffic load without support on the soil except at both ends; the support slab is removed and the wide flange is kept on the embankment side as a temperature elongation joint. The BEST device (Bridge to Embankments Simulator of Transition) was built to simulate the bump at the end of the bridge problem. It is a 1/20 [superscript th] scale model of the typical transition and the dimension was determined from dimensional analysis. Multiple BEST tests were conducted using a range of parameters and several influence factors were derived. A computer program was developed which uses the influence factors to predict the bump size from the beginning stage of embankment construction.
Author : Xiaomin Shi
Publisher : LAP Lambert Academic Publishing
ISBN 13 : 9783838319346
Total Pages : 172 pages
Book Rating : 4.3/5 (193 download)
Download or read book Approach Slab and Its Effect on Vehicle Induced Bridge Vibration written by Xiaomin Shi and published by LAP Lambert Academic Publishing. This book was released on 2009-11 with total page 172 pages. Available in PDF, EPUB and Kindle. Book excerpt: Firstly, this book discussed the structural performance of the approach slab under given embankment settlement. Based on a parametric study, a correlation among the slab parameters, deflections, internal moments, and the differential settlements has been established. Based on finite element analysis, internal forces and deformations of ribbed slabs have been predicted and their designs are conducted. Secondly, a fully computerized vehicle-bridge coupled model has been developed to analyze the effect of approach slab deformation on bridges' dynamic response induced by moving vehicles. With this model, a parametric study reveals that the deformation at the approach span causes significant dynamic responses in short span bridges. Finally, this study investigated the possibility of using tuned mass damper (TMD) to suppress the vehicle-induced bridge vibration under the condition of uneven bridge expansion joints.
Author : J.-L. Briaud
Publisher :
ISBN 13 :
Total Pages : 88 pages
Book Rating : 4.3/5 (555 download)
Download or read book Settlement of Bridge Approaches written by J.-L. Briaud and published by . This book was released on 1997 with total page 88 pages. Available in PDF, EPUB and Kindle. Book excerpt: This synthesis will be of interest to state Departments of Transportation (DOTs) geotechnical, structural, roadway design, construction, and maintenance engineers; DOT research staff; and personnel in local transportation agencies. This synthesis describes the current state of the practice for the design, construction, and maintenance of bridge approaches to reduce, eliminate, or compensate for settlement at the bridge/abutment/embankment interface or the bump at the end of the bridge. It discusses the geotechnical and structural engineering design and procedural factors to reduce the bump at the end of the bridge, and includes numerous illustrations. This report of the Transportation Research Board presents data obtained from a review of the literature and a survey of the state DOTs. It is a supplemental update to Synthesis of Highway Practice 159: Design and Construction of Bridge Approaches (1990). The synthesis identifies and describes techniques that have been used to alleviate the problem of the bump at the end of the bridge including the location and cause of settlement and methods used to reduce settlement. In addition, the types of interaction between various divisions of the DOTs in the design, construction, and maintenance of bridge approaches are addressed.
Author : Stanley Y. T. Chen
Publisher :
ISBN 13 :
Total Pages : 114 pages
Book Rating : 4.3/5 (121 download)
Download or read book Evaluation of Structural Performance of Bridge Approach Slabs written by Stanley Y. T. Chen and published by . This book was released on 2010 with total page 114 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 23 pages
Book Rating : 4.:/5 (451 download)
Download or read book Finite Element Modeling and Analysis of Reinforced-concrete Bridge Decks written by and published by . This book was released on 2000 with total page 23 pages. Available in PDF, EPUB and Kindle. Book excerpt: Despite its long history, the finite element method continues to be the predominant strategy employed by engineers to conduct structural analysis. A reliable method is needed for analyzing structures made of reinforced concrete, a complex but common ingredient in many bridges in Virginia. As an effective alternative to extensive experimentation, this study was implemented to evaluate the plausibility of finite element analysis of reinforced-concrete bridge decks. Analytical evaluations were performed with the commercial, general-purpose finite element code ABAQUS, which can effectively depict the nonlinear behavior of concrete. It also has the unique capability of describing the behavior of reinforcing bars independently of the concrete material. Three-dimensional finite element models were developed to determine the overall structural response of several reinforced-concrete systems. Biaxial strain distribution through the element thickness, longitudinal normal girder strains, and displacements were predicted with reasonable accuracy. The accuracy of the model was verified with hand calculations or response data acquired from laboratory testing.
