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Load Distribution Characteristics Of Curved Composite Steel Single Cell Bridges At Construction Phase
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Book Synopsis Load Distribution Characteristics of Curved Composite Steel Single-cell Bridges at Construction Phase by : Glenn Lee
Download or read book Load Distribution Characteristics of Curved Composite Steel Single-cell Bridges at Construction Phase written by Glenn Lee and published by . This book was released on 2002 with total page 414 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Load Distribution and Dynamic Characteristics of Curved Composite Concrete Deck-steel Cellular Bridges by : Khaled Mohie Eldin Sennah
Download or read book Load Distribution and Dynamic Characteristics of Curved Composite Concrete Deck-steel Cellular Bridges written by Khaled Mohie Eldin Sennah and published by . This book was released on 1998 with total page 926 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Load Distribution Factors of Straight and Curved Steel Concrete Composite Box and I Girder Bridges by : Seyed Jalaleddin Fatemi
Download or read book Load Distribution Factors of Straight and Curved Steel Concrete Composite Box and I Girder Bridges written by Seyed Jalaleddin Fatemi and published by . This book was released on 2016 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the present research, load distribution factors of steel-concrete composite bridges subjected to loads recommended by Australian Bridge Design Code are determined. The bridges can have straight or curved (in plan) alignments with box girder or I girder sectional configurations. The load distribution factors are quite useful in bridge design practice specifically at their preliminary design stage. These factors help a designer to quickly calculate the stress resultants (shear force or bending moment) acting on different girders of a bridge from those acting on the entire bridge section which can be estimated easily in the case of a statically determinant structure such as simply supported straight bridge treated as a beam. Unfortunately, the horizontally curved bridges are statically indeterminate even if they are idealized as a curved beam. In order to address this issue, a closed form analytical solution without having any major simplification is developed which can be conveniently used by a designer for calculating the stress resultants acting on the entire section of a curved bridge. The unit load method, a method extracted from Castigliano's second theorem, is used to derive the analytical solution. As bridge loads consist of a number of wheel loads, the use of influence line diagrams is quite common as they help to calculate the maximum values of any parameter such as bending moment conveniently. For this purpose, the analytical solution is used to obtain the influence line diagram of shear force, bending moment and torsion of curved bridges. A detailed finite element modelling of these bridge structures is used to calculate the load distribution factors. In order to have a reliable finite element model of these structural system, different types of element such as solid element, shell element and beam element are used in different combinations to find out the most suitable option that can accurately simulate the components of these bridge systems with reasonable computational efficiency. The performance of these finite element models is assessed using experimental results available in literature. These bridges can be characterized with different parameters and these parameters can vary in a wide range in real scenario. Thus there is a need for development of design formulae or charts for load distribution factors in terms of these parameters that can be readily used for designing any bridge. For this purpose, a large number of configurations of these bridges are generated by varying their different parameters and these bridges are analysed using the abovementioned finite element model. A large number of results obtained from these analyses are used to develop the design guidelines in the form of empirical expressions using multivariate regression analysis.
Book Synopsis Behavior, Design and Construction of Horizontally Curved Composite Steel Box Girder Bridges [microform] by : Muayad Whyib Aldoori
Download or read book Behavior, Design and Construction of Horizontally Curved Composite Steel Box Girder Bridges [microform] written by Muayad Whyib Aldoori and published by Library and Archives Canada = Bibliothèque et Archives Canada. This book was released on 2004 with total page 538 pages. Available in PDF, EPUB and Kindle. Book excerpt: Horizontally curved girder bridges have been used considerably in recent years in highly congested urban areas. However, although significant research on physical testing and advanced analysis has been underway for the past decade, the practical employment of many recommendations has not been achieved by the engineering community nor have standards reflecting this work been brought into practice. The design process of curved composite bridges involves tracking the stresses and the potential failure change in the girders during erection, construction and service loading stages. For structural safety and serviceability, the designer estimates the stresses induced within the bridge and assure that they do not exceed the applicable specified limit state as required in bridge design standards. However, the designer may be concerned about the level of approximation that is used in his estimate or even the applicability of the underlying theory. To answer this question and provide the designer with more insight into the behavior of the curved bridges, the field testing during construction and service loading of a curved bridge located near Baltimore, Maryland is re-examined here using linear elastic three-dimensional finite element modeling. Comparisons are made between the finite element results and the measured results. Finally, to facilitate the finite element modeling effort for use by a designer, ANSYS Parametric Design Language (APDL) capabilities are used here to develop an analysis/design tool for "Bath-Tub" style curved steel girder bridges. This tool is then used to evaluate the effects of several important design variables on the response and behavior of the girders during the construction phase. This study demonstrates the ability of finite element modeling to assess the stiffness, serviceability performance, buckling behavior and ultimate strength of curved bridges during construction and it is a major step towards a performance based approach to design for stability. The level of safety or reliability that would be available during the erection and the construction processes of horizontally curved girder bridges represents another major concern for the designer. A three span continuous curved box girder bridge in Houston, Texas is used in this study as an example reflecting current detailing and fabricating practice and it is chosen for a detailed evaluation of the structural safety/reliability during the erection and construction process. This task involves simulating the girder erection and concrete slab placement sequence of the bridge using comprehensive nonlinear three dimensional finite element modeling.
Book Synopsis Analysis and Design of Curved Steel Bridges by : Hiroshi Nakai
Download or read book Analysis and Design of Curved Steel Bridges written by Hiroshi Nakai and published by McGraw-Hill Companies. This book was released on 1988 with total page 696 pages. Available in PDF, EPUB and Kindle. Book excerpt: Very Good,No Highlights or Markup,all pages are intact.
Book Synopsis Load Distribution in Curved Composite Concrete Deck-steel Multiple-spine Box Girder Bridges by :
Download or read book Load Distribution in Curved Composite Concrete Deck-steel Multiple-spine Box Girder Bridges written by and published by . This book was released on 2001 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Dynamic Characteristics of Simply Supported Curved Composite Multi-cell Bridges by :
Download or read book Dynamic Characteristics of Simply Supported Curved Composite Multi-cell Bridges written by and published by . This book was released on 1997 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt: The use of horizontally curved composite bridges in the interchange facilities of modern highway systems has become increasingly popular for economic as well as for aesthetic considerations. Cellular steel sections composite with a concrete deck are quite suitable in resisting torsional and warping effects induced by highway curvature. However, this type of structure has inherently created design problems for the designer in estimating the level of dynamic response when subjected to moving vehicles, wind, or seismic conditions. This paper presents a summary of an estensive parametric study, using the finite-element method, in which 120 simply supported, curved composite bridge prototypes are analyzed to evaluate their natural frequencies and mode shapes. The parameters considered in the study are end-diaphragm thickness, cross-bracing system, aspect ratio, span-to-depth ratio, degree of curvature, number of lanes, and number of cells. Results from tests on four 1/12 linear-scale simply supported composite three-cell bridge models of different curvatures are used to substantiate the analytical modelling. The stipulation made in bridge codes for treating a curved bridge as a straight one is examined. Based on the data generated from the parametric study, expressions for the first flexural frequency and hence the dynamic load allowance are deduced. Recommendations for enhancing the torsional resistance to dynamic forces on curved bridges are presented. Two design examples are illustrated.
Book Synopsis Engineering for Structural Stability in Bridge Construction by : Federal Highway Federal Highway Administration
Download or read book Engineering for Structural Stability in Bridge Construction written by Federal Highway Federal Highway Administration and published by . This book was released on 2020-07-19 with total page 669 pages. Available in PDF, EPUB and Kindle. Book excerpt: This manual is intended to serve as a reference. It will provide technical information which will enable Manual users to perform the following activities:Describe typical erection practices for girder bridge superstructures and recognize critical construction stagesDiscuss typical practices for evaluating structural stability of girder bridge superstructures during early stages of erection and throughout bridge constructionExplain the basic concepts of stability and why it is important in bridge erection* Explain common techniques for performing advanced stability analysis along with their advantages and limitationsDescribe how differing construction sequences effect superstructure stabilityBe able to select appropriate loads, load combinations, and load factors for use in analyzing superstructure components during constructionBe able to analyze bridge members at various stages of erection* Develop erection plans that are safe and economical, and know what information is required and should be a part of those plansDescribe the differences between local, member and global (system) stability
Book Synopsis Guidelines for Analyzing Curved and Skewed Bridges and Designing Them for Construction by : Daniel Gattner Linzell
Download or read book Guidelines for Analyzing Curved and Skewed Bridges and Designing Them for Construction written by Daniel Gattner Linzell and published by . This book was released on 2010 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The effects of design, fabrication, and construction on the geometry and load distribution in a curved or skewed bridge system are areas in which further study and understanding are required. This project utilized remote acquisition capabilities for instruments on two structures in the Interstate 99 corridor: a horizontally curved, steel, I-girder bridge, and a skewed, prestressed, concrete bridge. Data obtained from these structures were examined and the numerical model accuracy for curved and skewed, steel, I-girder bridges and select appropriate model types and software was investigated. Parametric studies were undertaken on a group of representative curved and skewed steel bridge structures to numerically examine the influence of specific variables on behavior during construction. Results enabled the identification of preferred erection sequencing approaches.
Book Synopsis Guidelines for Analyzing Curved and Skewed Bridges and Designing Them for Construction by : Daniel Gattner Linzell
Download or read book Guidelines for Analyzing Curved and Skewed Bridges and Designing Them for Construction written by Daniel Gattner Linzell and published by . This book was released on 2010 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The effects of design, fabrication, and construction on the geometry and load distribution in a curved or skewed bridge system are areas in which further study and understanding are required. This project utilized remote acquisition capabilities for instruments on two structures in the Interstate 99 corridor: a horizontally curved, steel, I-girder bridge, and a skewed, prestressed, concrete bridge. Data obtained from these structures were examined and the numerical model accuracy for curved and skewed, steel, I-girder bridges and select appropriate model types and software was investigated. Parametric studies were undertaken on a group of representative curved and skewed steel bridge structures to numerically examine the influence of specific variables on behavior during construction. Results enabled the identification of preferred erection sequencing approaches.
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:
Book Synopsis Load Distribution in Curved Slab-and-girder Bridges by : Arnon Wongkaew
Download or read book Load Distribution in Curved Slab-and-girder Bridges written by Arnon Wongkaew and published by . This book was released on 1996 with total page 244 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Bridge Launching by : Marco Rosignoli
Download or read book Bridge Launching written by Marco Rosignoli and published by Thomas Telford. This book was released on 2002 with total page 366 pages. Available in PDF, EPUB and Kindle. Book excerpt: &Quot;This book is an essential purchase for all those involved in bridge construction and innovative building techniques, such as bridge owners, design offices, bridge consultants, and construction equipment suppliers."--BOOK JACKET.
Book Synopsis Steel-concrete Composite Bridges by : David Collings
Download or read book Steel-concrete Composite Bridges written by David Collings and published by Thomas Telford. This book was released on 2005 with total page 206 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Steel-concrete composite bridges shows how to choose the bridge form and design element sizes to enable the production of accurate drawings and also highlights a wide and full range of examples of the design and construction of this bridge type."--Jacket.
Download or read book HRIS Abstracts written by and published by . This book was released on 1989 with total page 1072 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Steel Box Girder Bridges written by and published by Thomas Telford Publishing. This book was released on 1973 with total page 328 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Proceedings of the Institution of Civil Engineers by :
Download or read book Proceedings of the Institution of Civil Engineers written by and published by . This book was released on 2000 with total page 454 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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