Load Reduction In Multi Lane Concrete Slab Bridges

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Load Reduction in Multi-lane Concrete Slab Bridges

Author : Fatima Mohamad El Meski
Publisher :
ISBN 13 :
Total Pages : 214 pages
Book Rating : 4.:/5 (787 download)

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Book Synopsis Load Reduction in Multi-lane Concrete Slab Bridges by : Fatima Mohamad El Meski

Download or read book Load Reduction in Multi-lane Concrete Slab Bridges written by Fatima Mohamad El Meski and published by . This book was released on 2007 with total page 214 pages. Available in PDF, EPUB and Kindle. Book excerpt: This current research presents the finite-element results of a study investigati ng the effect of multi-presence of design vehicles on three- and four-lane concr ete slab highway bridges. Typical one-span, simply supported, two spans, multil ane (three and four lanes), reinforced concrete slab bridges are considered. The finite-element method is used to investigate the effect of span length and slab width, and to calculate the wheel load distribution on the bridge slab at the c ritical section. Live load reduction factors are proposed by the American Association for State H ighway and Transportation Officials (AASHTO) specifications, due to the improbab ility of maximum coincident loading. These live-load reduction factors are impo sed to account for the probability of having all lanes loaded at the same time a nd at locations along the bridge deck producing the maximum bending moment in an element of a bridge superstructure. AASHTO specifies that results obtained fro m analyses of three- and four-lane bridge decks where all lanes are loaded simul taneously are to be multiplied by proposed reduction factors. This research will investigate the significance of the reduction factors propose d by AASHTO. Design trucks loads are first placed transversally in all lanes as a reference case. Design loads in two out of three, three out of four, and two out of four lanes are then investigated. The wheel load distribution on the bri dge slab at the critical section for the fully loaded and reduced conditions are calculated and compared. The results are assessed with AASHTO procedures, and a correlation between the reduced conditions and the AASHTO 10% and 25% reductio n factors is made. This research will assist bridge engineers in quantifying the adjustment factors used in analyzing and designing multilane concrete slab bridges.

Influence of Sidewalks and Railings on Wheel Load Distribution in Concrete Slab Bridges

Author : Michel Joseph Waked
Publisher :
ISBN 13 :
Total Pages : 228 pages
Book Rating : 4.:/5 (787 download)

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Book Synopsis Influence of Sidewalks and Railings on Wheel Load Distribution in Concrete Slab Bridges by : Michel Joseph Waked

Download or read book Influence of Sidewalks and Railings on Wheel Load Distribution in Concrete Slab Bridges written by Michel Joseph Waked and published by . This book was released on 2009 with total page 228 pages. Available in PDF, EPUB and Kindle. Book excerpt: The presence of sidewalks and railings or parapets acting integrally with the br idge deck have the effect of stiffening and attracting load to the slab edge and therefore altering the lateral wheel load distribution on highway bridges. Thi s may also result in increasing the load-carrying capacity of bridges. The curr ent research presents a parametric study to investigate the influence of typical integral sidewalks and railings on wheel load distribution as well as on the lo ad-carrying capacity of concrete slab bridges. Typical one-span, simply supported, multilane (one to four lanes), reinforced co ncrete slab bridges are considered. The finite-element method is used to invest igate the effect of span length and slab width, and to calculate the wheel load distribution on the bridge slab at the critical section. AASHTO design trucks l oads are placed transversally and longitudinally to produce maximum moments at t he critical section of the slabs. Various configurations of sidewalks and/or ra ilings on either or both edges of the slab are considered. The case with no sid ewalks and railing will serve as a reference case. The wheel load distribution on the bridge slab at the critical section for the r eference and sidewalk/railing cases are calculated and compared. The results ar e assessed and evaluated with AASHTO procedures, and recommendations are made to assess the influence of sidewalks and railings. This research will assist structural engineers in better designing new concrete slab bridges, or evaluating more precisely the load-carrying capacity of existin g bridges, in the presence of sidewalks and/or railings. Such can also be consi dered as an adequate and practical method for strengthening and rehabilitating c oncrete slab bridges.

Practical design of reinforced and prestressed concrete structures

Author : FIB – International Federation for Structural Concrete
Publisher : FIB - International Federation for Structural Concrete
ISBN 13 : 0727702149
Total Pages : 47 pages
Book Rating : 4.7/5 (277 download)

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Book Synopsis Practical design of reinforced and prestressed concrete structures by : FIB – International Federation for Structural Concrete

Download or read book Practical design of reinforced and prestressed concrete structures written by FIB – International Federation for Structural Concrete and published by FIB - International Federation for Structural Concrete. This book was released on 1986-12-05 with total page 47 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Bridge Traffic Loading

Author : Eugene OBrien
Publisher : CRC Press
ISBN 13 : 1000459918
Total Pages : 236 pages
Book Rating : 4.0/5 (4 download)

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Book Synopsis Bridge Traffic Loading by : Eugene OBrien

Download or read book Bridge Traffic Loading written by Eugene OBrien and published by CRC Press. This book was released on 2021-12-03 with total page 236 pages. Available in PDF, EPUB and Kindle. Book excerpt: There is considerable uncertainty about what level of traffic loading bridges should be designed for. Codes specify notional load models, generally to represent extreme levels of normal traffic, but these are often crude and have inconsistent levels of safety for different load effects. Over the past few decades, increasing quantities of reliable truck weight data has become available and it is now possible to calculate appropriate levels of bridge traffic loading, both for specific bridges and for a road network. Bridge Traffic Loading brings together experts from all over the world to deliver not just the state-of-the-art of vertical loading, but also to provide recommendations of best-practice for all the major challenges in the field – short-span, single and multi-lane bridge loading, dynamic allowance and long-span bridges. It reviews issues that continue to be debated, such as which statistical distribution is most appropriate, whether free-flowing or congested traffic governs and dealing with future traffic growth. Specialist consultants and bridge owners should find this invaluable, as will regulators.

Bridge Engineering Handbook

Author : Wai-Fah Chen
Publisher : CRC Press
ISBN 13 : 9781420049596
Total Pages : 2028 pages
Book Rating : 4.0/5 (495 download)

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Book Synopsis Bridge Engineering Handbook by : Wai-Fah Chen

Download or read book Bridge Engineering Handbook written by Wai-Fah Chen and published by CRC Press. This book was released on 1999-11-04 with total page 2028 pages. Available in PDF, EPUB and Kindle. Book excerpt: An international team of experts has joined forces to produce the Bridge Engineering Handbook. They address all facets-the planning, design, inspection, construction, and maintenance of a variety of bridge structures-creating a must-have resource for every bridge engineer. This unique, comprehensive reference provides the means to review standard practices and keep abreast of new developments and state-of-the-art practices. Comprising 67 chapters in seven sections, the authors present: Fundamentals: Provides the basic concepts and theory of bridge engineering Superstructure Design: Discusses all types of bridges Substructure Design: Addresses columns, piers, abutments, and foundations Seismic Design: Presents the latest in seismic bridge design Construction and Maintenance: Focuses on the practical issues of bridge structures Special Topics: Offers new and important information and unique solutions Worldwide Practice: Summarizes bridge engineering practices around the world. Discover virtually all you need to know about any type of bridge: Reinforced, Segmental, and Prestressed Concrete Steel beam and plate girder Steel box girder Orthotropic deck Horizontally curved Truss Arch Suspension Cable-stayed Timber Movable Floating Railroad Special attention is given to rehabilitation, retrofit, and maintenance, and the Bridge Engineering Handbook offers over 1,600 tables, charts, and illustrations in ready-to-use format. An abundance of worked-out examples give readers step-by-step design procedures and the section on Worldwide Practice provides a broad and valuable perspective on the "big picture" of bridge engineering.

Bridge Engineering Handbook, Five Volume Set

Author : Wai-Fah Chen
Publisher : CRC Press
ISBN 13 : 1482255030
Total Pages : 3130 pages
Book Rating : 4.4/5 (822 download)

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Book Synopsis Bridge Engineering Handbook, Five Volume Set by : Wai-Fah Chen

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

Bridge Loads

Author : Colin O'Connor
Publisher : CRC Press
ISBN 13 : 0203185927
Total Pages : 359 pages
Book Rating : 4.2/5 (31 download)

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Book Synopsis Bridge Loads by : Colin O'Connor

Download or read book Bridge Loads written by Colin O'Connor and published by CRC Press. This book was released on 2000-08-03 with total page 359 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides a detailed summary of bridge loads from an international perspective. The authors cover all aspects from the methodology behind the calculation of bridge loads and the complex interactions between loads and bridges, to economic considerations. A wide range of bridge loads are covered, including highway vehicle loads, pedestrian l

Current and Future Trends in Bridge Design, Construction and Maintenance

Author : Parag C. Das
Publisher : Thomas Telford
ISBN 13 : 9780727728418
Total Pages : 686 pages
Book Rating : 4.7/5 (284 download)

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Book Synopsis Current and Future Trends in Bridge Design, Construction and Maintenance by : Parag C. Das

Download or read book Current and Future Trends in Bridge Design, Construction and Maintenance written by Parag C. Das and published by Thomas Telford. This book was released on 1999 with total page 686 pages. Available in PDF, EPUB and Kindle. Book excerpt: The major expansion of transport networks in the twentieth century has been accompanied by extensive bridge construction. At the end of the century, the field of bridge engineering continues to grow and develop. Recent years have seen the construction of revolutionary new bridges, advances in materials and construction techniques and the development of international codes and standards aimed at producing more durable and reliable structures.

Structural Modeling Techniques for Concrete Slab and Girder Bridges

Author : Edgar V. Leyendecker
Publisher :
ISBN 13 :
Total Pages : 200 pages
Book Rating : 4.:/5 (359 download)

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Book Synopsis Structural Modeling Techniques for Concrete Slab and Girder Bridges by : Edgar V. Leyendecker

Download or read book Structural Modeling Techniques for Concrete Slab and Girder Bridges written by Edgar V. Leyendecker and published by . This book was released on 1968 with total page 200 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Single Lane Live Load Distribution Factor for Decked Precast/prestressed Concrete Girder Bridges

Author : John Zhongguo
Publisher :
ISBN 13 :
Total Pages : 448 pages
Book Rating : 4.:/5 (1 download)

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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.

Improved Load Rating of Reinforced Concrete Slab Bridges

Author : David Villegas Jãuregui
Publisher :
ISBN 13 :
Total Pages : 130 pages
Book Rating : 4.3/5 (555 download)

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Book Synopsis Improved Load Rating of Reinforced Concrete Slab Bridges by : David Villegas Jãuregui

Download or read book Improved Load Rating of Reinforced Concrete Slab Bridges written by David Villegas Jãuregui and published by . This book was released on 2007 with total page 130 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Research Perspectives

Author : Peter Dawe
Publisher : Thomas Telford
ISBN 13 : 9780727732415
Total Pages : 192 pages
Book Rating : 4.7/5 (324 download)

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Book Synopsis Research Perspectives by : Peter Dawe

Download or read book Research Perspectives written by Peter Dawe and published by Thomas Telford. This book was released on 2003 with total page 192 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides a detailed examination of all aspects of traffic loading and describes how design and assessment methods have evolved to deal with them.

Distribution of Wheel Loads on Highway Bridges

Author : Wallace Wolfred Sanders
Publisher :
ISBN 13 :
Total Pages : 32 pages
Book Rating : 4.3/5 (555 download)

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Book Synopsis Distribution of Wheel Loads on Highway Bridges by : Wallace Wolfred Sanders

Download or read book Distribution of Wheel Loads on Highway Bridges written by Wallace Wolfred Sanders and published by . This book was released on 1984 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt: "This synthesis will be useful to bridge engineers and others concerned with the design and structural evaluation of highway bridges. Information is presented on various approaches currently used to calculate the distribution of wheel loads among the supporting members in bridge superstructures."--Avant-propos.

Concrete Structures Part-II 4th Ed.

Author : Zahid Ahmad Siddiqi
Publisher : Zahid Ahmad Siddiqi
ISBN 13 : 9698633170
Total Pages : 134 pages
Book Rating : 4.6/5 (986 download)

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Book Synopsis Concrete Structures Part-II 4th Ed. by : Zahid Ahmad Siddiqi

Download or read book Concrete Structures Part-II 4th Ed. written by Zahid Ahmad Siddiqi and published by Zahid Ahmad Siddiqi. This book was released on 2020-05-11 with total page 134 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is prepared according to the 2019 ACI Code for buildings and 2007 AASHTO LRFD Specifications for bridges. The units used throughout the presentation are the SI units according to the official system of units in Pakistan. As in Part-I of the same series of books, it is tried that the three main phases of structural design, namely load determination, design calculations and detailing are together introduced to the beginner. In this set of two books, besides the usual reinforced concrete design, retaining walls, yield line and strip method of slab design, slabs-on-grade, moment-curvature relationships, water retaining structures, prestressed concrete, dome design, special types of stairs, machine foundations, pipe design for D-load, bridge super-structure design, bridge sub-structure design, ordinary RC wall subjected to in-plane and out-of-plane bending, special RC wall, coupling beam, basics of formwork design, plain concrete properties and repair / rehabilitation of concrete structures are also presented. This book is useful with the 1st part of the same book.

Diagnostic and Proof Load Tests on Bridges

Author : Fikret Necati Catbas
Publisher : Frontiers Media SA
ISBN 13 : 2889662128
Total Pages : 212 pages
Book Rating : 4.8/5 (896 download)

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Book Synopsis Diagnostic and Proof Load Tests on Bridges by : Fikret Necati Catbas

Download or read book Diagnostic and Proof Load Tests on Bridges written by Fikret Necati Catbas and published by Frontiers Media SA. This book was released on 2020-12-11 with total page 212 pages. Available in PDF, EPUB and Kindle. Book excerpt: This eBook is a collection of articles from a Frontiers Research Topic. Frontiers Research Topics are very popular trademarks of the Frontiers Journals Series: they are collections of at least ten articles, all centered on a particular subject. With their unique mix of varied contributions from Original Research to Review Articles, Frontiers Research Topics unify the most influential researchers, the latest key findings and historical advances in a hot research area! Find out more on how to host your own Frontiers Research Topic or contribute to one as an author by contacting the Frontiers Editorial Office: frontiersin.org/about/contact.

Bridge Engineering Handbook, Second Edition

Author : Wai-Fah Chen
Publisher : CRC Press
ISBN 13 : 1439852073
Total Pages : 594 pages
Book Rating : 4.4/5 (398 download)

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Book Synopsis Bridge Engineering Handbook, Second Edition by : Wai-Fah Chen

Download or read book Bridge Engineering Handbook, Second Edition written by Wai-Fah Chen and published by CRC Press. This book was released on 2014-01-24 with total page 594 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 subject. Published in five books: Fundamentals, Superstructure Design, Substructure Design, Seismic Design, and Construction and Maintenance, this new edition provides numerous worked-out examples that give readers step-by-step design procedures, includes contributions by leading experts from around the world in their respective areas of bridge engineering, contains 26 completely new chapters, and updates most other chapters. It offers design concepts, specifications, and practice, as well as the various types of bridges. The text includes over 2,500 tables, charts, illustrations and photos. The book covers new, innovative, and traditional methods and practices, explores rehabilitation, retrofit, and maintenance, and examines seismic design, and building materials. The first book, Fundamentals contains 22 chapters, and covers aesthetics, planning, design specifications, structural modeling, fatigue and fracture. What’s New in the Second Edition: • Covers the basic concepts, theory and special topics of bridge engineering • Includes seven new chapters: Finite Element Method, High Speed Railway Bridges, Concrete Design, Steel Design, Structural Performance Indicators for Bridges, High Performance Steel, and Design and Damage Evaluation Methods for Reinforced Concrete Beams under Impact Loading • Provides substantial updates to existing chapters, including Conceptual Design, Bridge Aesthetics: Achieving Structural Art in Bridge Design, and Application of Fiber Reinforced Polymers in Bridges This text is an ideal reference for practicing bridge engineers and consultants (design, construction, maintenance), and can also be used as a reference for students in bridge engineering courses.

Methods for Increasing Live Load Capacity of Existing Highway Bridges

Author : Roger A. Dorton
Publisher : Transportation Research Board
ISBN 13 : 9780309061056
Total Pages : 76 pages
Book Rating : 4.0/5 (61 download)

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Book Synopsis Methods for Increasing Live Load Capacity of Existing Highway Bridges by : Roger A. Dorton

Download or read book Methods for Increasing Live Load Capacity of Existing Highway Bridges written by Roger A. Dorton and published by Transportation Research Board. This book was released on 1997 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt: This synthesis will be of interest to state department of transportation bridge design and structural engineers, bridge consultants, and others involved in applied and research methods for increasing the live load capacity of existing highway bridges. The synthesis describes the current state of the practice for the various methods used to increase the live load capacity of existing highway bridges. This is done predominantly for bridges in the short- to medium-span range. Information on the more common bridge material types is presented. There is an emphasis on superstructure rather than substructure strengthening.