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A Comparison Of Wheel Load Distribution Factors Used In The Design Of Multibeam Non Composite Precast Prestressed Concrete Box Girder Bridge Decks
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Book Synopsis A Comparison of Wheel Load Distribution Factors Used in the Design of Multibeam, Non-composite, Precast, Prestressed, Concrete Box Girder Bridge Decks by : Daryl Eugene Young
Download or read book A Comparison of Wheel Load Distribution Factors Used in the Design of Multibeam, Non-composite, Precast, Prestressed, Concrete Box Girder Bridge Decks written by Daryl Eugene Young and published by . This book was released on 1992 with total page 172 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Masters Theses in the Pure and Applied Sciences by : Wade H. Shafer
Download or read book Masters Theses in the Pure and Applied Sciences written by Wade H. Shafer and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 391 pages. Available in PDF, EPUB and Kindle. Book excerpt: Masters Theses in the Pure and Applied Sciences was first conceived, published, and disseminated by the Center for Information and Numerical Data Analysis and Synthesis (CINDAS)* at Purdue University in 1957, starting its coverage of theses with the academic year 1955. Beginning with Volume 13, the printing and dis semination phases of the activity were transferred to University Microfilms/Xerox of Ann Arbor, Michigan, with the though that such an arrangement would be more beneficial to the academic and general scientific and technical community. After five years of this joint undertaking we had concluded that it was in the interest of all concerned if the printing and distribution of the volumes were handled by an international publishing house to assure improved service and broader dissemi nation. Hence, starting with Volume 18, Masters Theses in the Pure and Applied Sciences has been disseminated on a worldwide basis by Plenum Publishing Corporation of New York, and in the same year the coverage was broadened to include Canadian universities. All back issues can also be ordered from Plenum. We have reported in Volume 37 (thesis year 1992) a total of 12,549 thesis titles from 25 Canadian and 153 United States universities. We are sure that this broader base for these titles reported will greatly enhance the value of this impor tant annual reference work. While Volume 37 reports theses submitted in 1992, on occasion, certain uni versities do report theses submitted in previous years but not reported at the time.
Book Synopsis Effect of Relative Flexural/torsional Beam Characteristics Upon Load Distribution in Multi-beam Bridges by : Daryl Eugene Young
Download or read book Effect of Relative Flexural/torsional Beam Characteristics Upon Load Distribution in Multi-beam Bridges written by Daryl Eugene Young and published by . This book was released on 1993 with total page 160 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Masters Theses in the Pure and Applied Sciences by : W. H. Shafer
Download or read book Masters Theses in the Pure and Applied Sciences written by W. H. Shafer and published by Springer Science & Business Media. This book was released on 1994 with total page 410 pages. Available in PDF, EPUB and Kindle. Book excerpt: Volume 37 (thesis year 1992) reports a total of 12,549 thesis titles from 25 Canadian and 153 US universities (theses submitted in previous years but only now reported are indicated by the thesis year shown in parenthesis). The organization, like that of past years, consists of thesis titles arrange
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.
Book Synopsis Government Reports Announcements & Index by :
Download or read book Government Reports Announcements & Index written by and published by . This book was released on 1977 with total page 1406 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Ei Engineering Conference Index by :
Download or read book Ei Engineering Conference Index written by and published by . This book was released on 1985 with total page 1268 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Simplified Load Distribution Factor for Use in LRFD Design by : Elisa D. Sotelino
Download or read book Simplified Load Distribution Factor for Use in LRFD Design written by Elisa D. Sotelino and published by . This book was released on 2004-09-01 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The “S-over” equation for the load distribution factor (LDF) was first introduced in the 1930s in the AASHTO Standard. Finite element studies, however, have shown it to be unsafe in some cases and too conservative in others. In this study, a new simplified equation that is based on the AASHTO LRFD formula and does not require an iterative procedure is developed. The new simplified equation produces LDF values that are always conservative when compared to those obtained from the finite element analyses and are generally greater than the LDF obtained using AASHTO LRFD specification. Therefore, the simplified equation provides a simple yet safe specification for LDF calculation. This study also investigates the effects of secondary elements and bridge deck cracking on the LDF of bridges. The AASHTO LRFD LDF equation was developed based on elastic finite element analysis considering only primary members, i.e., the effects of secondary elements such as lateral bracing and parapets were not considered. Meanwhile, many bridges have been identified as having significant cracking in the concrete deck. Even though deck cracking is a well-known phenomenon, the significance of pre-existing cracks on the live load distribution has not yet been assessed in the literature. First, secondary elements such as diaphragms and parapet were modeled using the finite element method, and the calculated load distribution factors were compared with the code-specified values. Second, the effects of typical deck cracking and crack types that have a major effect on load distribution were identified through a number of nonlinear finite element analyses. Transverse cracking was found to not significantly influence the transverse distribution of moment. Finally, for one of the selected bridges, both concrete cracking and secondary elements are considered to invesitigate their combined effect on lateral load distribution. The increased LDF due to deck cracking is offset by the contributions from the secondary elements. The result is that the proposed simplified equation is conservative and is recommended for determination of LDF.
Book Synopsis Distribution of Wheel Loads on Highway Bridges, Phase Three by : Toorak Zokaie
Download or read book Distribution of Wheel Loads on Highway Bridges, Phase Three written by Toorak Zokaie and published by . This book was released on 1993 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: NCHRP Projects 12-26 and 12-26/1 focused on the development of simplified wheel load distribution criteria for five common bridge types -- namely slab on girder, slab, box girder, spread box beam, and multibox beam. As part of the project 12-26/1 (Phase II) a Level-2 method was also recommended which consisted of a grillage analysis. Although several computer programs are available for grillage analysis, model preparation, load placement, and calculation of wheel load distribution factors is still a major task and may be a prohibitive factor for the engineers who are not fluent in computer aided structural analysis. Therefore, the development of a user friendly computer program for calculation of wheel load distribution factors based on a grillage analysis was taken. This program would also be useful as bridge engineers begin to implement the new Load and Resistance Factor Design (LRFD) specifications. This computer program, LDFAC, is capable of computing wheel load distribution factors at any user-defined location for calculation of shear or moment. Single and multiple span (continuous) bridges may be specified. The distribution factor can be for an HS20 or any other truck. Special load configurations may be specified by the user as well. The supports (abutments and bents) may be normal or skewed, and distribution factors are calculated for both single and multiple lane loadings. Additionally, the equations obtained in Phase II of this project have been incorporated into the software. The output tables present the results of these formulas for comparison. LDFAC presents a rigorous method for calculation of wheel load distribution factors for several bridges and loadings where simple formulas are not available or applicable. The factors obtained from LDFAC can be directly incorporated into the current design procedure, providing added accuracy without complicating the design process.
Book Synopsis Development of Simplified Factors for Lateral Distribution of Loads of Non-standard Gauge (NSG) Axles by : Burgess & Niple
Download or read book Development of Simplified Factors for Lateral Distribution of Loads of Non-standard Gauge (NSG) Axles written by Burgess & Niple and published by . This book was released on 2022 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Ohio Department of Transportation (ODOT) uses the Ohio Hauling Permit System (OHPS) to evaluate more than 335,000 permit loads each year. Many of these permits involve non-standard gauge (NSG) axle loads, meaning vehicles with gauge widths not equal to 6 feet. ODOT currently evaluates these vehicles by applying modifiers to AASHTO live load distribution factors prior to running the automated OHPS analysis process. The modifiers are based on historical precedent and are not supported by research. The purpose of this project was to develop more accurate modifiers for NSG axle vehicles. A parametric study was performed that included finite element analysis of 168 typical bridge configurations for 33 NSG axle configurations. Bridge types studied included composite and non-composite prestressed concrete side by side box beam, concrete slab, prestressed concrete I-beam, and steel multi-beam. Analysis results were used to develop a correction factor matrix based on axle gauge and the number of associated wheel lines.
Book Synopsis Design of Highway Bridges by : Richard M. Barker
Download or read book Design of Highway Bridges written by Richard M. Barker and published by John Wiley & Sons. This book was released on 2013-02-04 with total page 1194 pages. Available in PDF, EPUB and Kindle. Book excerpt: Up-to-date coverage of bridge design and analysis revised to reflect the fifth edition of the AASHTO LRFD specifications Design of Highway Bridges, Third Edition offers detailed coverage of engineering basics for the design of short- and medium-span bridges. Revised to conform with the latest fifth edition of the American Association of State Highway and Transportation Officials (AASHTO) LRFD Bridge Design Specifications, it is an excellent engineering resource for both professionals and students. This updated edition has been reorganized throughout, spreading the material into twenty shorter, more focused chapters that make information even easier to find and navigate. It also features: Expanded coverage of computer modeling, calibration of service limit states, rigid method system analysis, and concrete shear Information on key bridge types, selection principles, and aesthetic issues Dozens of worked problems that allow techniques to be applied to real-world problems and design specifications A new color insert of bridge photographs, including examples of historical and aesthetic significance New coverage of the "green" aspects of recycled steel Selected references for further study From gaining a quick familiarity with the AASHTO LRFD specifications to seeking broader guidance on highway bridge design Design of Highway Bridges is the one-stop, ready reference that puts information at your fingertips, while also serving as an excellent study guide and reference for the U.S. Professional Engineering Examination.
Download or read book Highway Research Abstracts written by and published by . This book was released on 1992 with total page 968 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Live Load Distribution Factor Comparison for a Curved Steel Box Girder Bridge by : Cory E. Schultz
Download or read book Live Load Distribution Factor Comparison for a Curved Steel Box Girder Bridge written by Cory E. Schultz and published by . This book was released on 2010 with total page 168 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :American Association of State Highway and Transportation Officials. Subcommittee on Bridges and Structures Publisher :AASHTO ISBN 13 :1560514965 Total Pages :41 pages Book Rating :4.5/5 (65 download)
Book Synopsis The Manual for Bridge Evaluation by : American Association of State Highway and Transportation Officials. Subcommittee on Bridges and Structures
Download or read book The Manual for Bridge Evaluation written by American Association of State Highway and Transportation Officials. Subcommittee on Bridges and Structures and published by AASHTO. This book was released on 2011 with total page 41 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Construction of Prestressed Concrete Structures by : Ben C. Gerwick, Jr.
Download or read book Construction of Prestressed Concrete Structures written by Ben C. Gerwick, Jr. and published by John Wiley & Sons. This book was released on 1997-02-13 with total page 624 pages. Available in PDF, EPUB and Kindle. Book excerpt: Die zweite Auflage dieses Klassikers - jetzt als Paperback - bietet Profis auf diesem Gebiet eine aktuelle und kompetente Präsentation der Technologie der Vorbelastung von Stahlbeton. Grundlegende Techniken, Materialien und Systeme werden behandelt und vielfältige Anwendungen - Gebäude, Brücken, Bohrplattformen, Straßen, Rollbahnen, Rohrleitungen - erläutert.
Book Synopsis Wheel Load Distribution in Concrete Box Girder Bridges by : A C. Scordelis
Download or read book Wheel Load Distribution in Concrete Box Girder Bridges written by A C. Scordelis and published by . This book was released on 1969 with total page 284 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Steel Bridges written by Manfred Hirt and published by CRC Press. This book was released on 2013-06-05 with total page 569 pages. Available in PDF, EPUB and Kindle. Book excerpt: This English translation of the successful French edition presents the conception and design of steel and steel-concrete composite bridges, from simple beam bridges to cable supported structures. The book focuses primarily on road bridges, emphasizing the basis of their conception and the fundamentals that must be considered to assure structural safety and serviceability, as well as highlighting the necessary design checks. The principles are extended in later chapters to railway bridges as well as bridges for pedestrians and cyclists. Particular attention is paid to consideration of the dynamic performance.
