Development Of Lrfd Specifications For Horizontally Curved Steel Girder Bridges

Download Read Online Development Of Lrfd Specifications For Horizontally Curved Steel Girder Bridges book
Author: J. M. Kulicki
Publisher: Transportation Research Board
ISBN: 0309098556
Size: 10.65 MB
Format: PDF, ePub, Mobi
View: 4776

Development Of Lrfd Specifications For Horizontally Curved Steel Girder Bridges by J. M. Kulicki


Original Title: Development Of Lrfd Specifications For Horizontally Curved Steel Girder Bridges

This report contains the findings of research performed to develop design specifications for horizontally curved steel girder bridges.

Behavior And Analysis Of A Horizontally Curved And Skewed I Girder Bridge

Download Read Online Behavior And Analysis Of A Horizontally Curved And Skewed I Girder Bridge book
Author: Cagri Ozgur
Publisher:
ISBN:
Size: 14.15 MB
Format: PDF, ePub
View: 3035

Behavior And Analysis Of A Horizontally Curved And Skewed I Girder Bridge by Cagri Ozgur


Original Title: Behavior And Analysis Of A Horizontally Curved And Skewed I Girder Bridge

This thesis investigates the strength behavior of a representative highly skewed and horizontally curved bridge as well as analysis and design procedures for these types of structures. The bridge responses at and above a number of limits in the AASHTO (2007) Specifications are considered. The study includes the evaluation of various attributes of the elastic analysis of the subject bridge. These attributes include: (1) the accuracy of 3-D grid versus 3-D FEA models, (2) first-order versus second-order effects during the construction, (3) the ability to predict layover at bearing lines using simplified equations and (4) the benefit of combining the maximum and concurrent major-axis and flange lateral bending values due to live load compared to combining the maximums due to different live loads when checking the section resistances. The study also addresses the ability of different AASHTO 2007 resistance equations to capture the ultimate strength behavior. This is accomplished by comparing the results from full nonlinear 3-D FEA studies to the elastic design and analysis results. Specifically the use of the 2007 AASHTO moment based one-third rule equations is evaluated for composite sections in positive bending.

Analysis And Design Of Plated Structures

Download Read Online Analysis And Design Of Plated Structures book
Author: N E Shanmugam
Publisher: Woodhead Publishing
ISBN: 1845690966
Size: 17.46 MB
Format: PDF
View: 7162

Analysis And Design Of Plated Structures by N E Shanmugam


Original Title: Analysis And Design Of Plated Structures

Steel and other types of plated structures are used in a variety of applications from aircrafts to ships and offshore platforms to bridges, power plants and cranes. A key issue in the use of these structures is their stability behaviour under compressive stress. Analysis and design of plated structures reviews the wealth of research in this important area and its implications for design, safety and maintenance. The book considers the various types of buckling that plated structures are likely to encounter. Chapters also review buckling in a range of materials from steel to differing types of composite. The book also discusses the behaviour of differing types of components used in steel-plated structures. These components include steel beams and columns as well as curved, stiffened, corrugated, laminated and other types of plate design. With its distinguished editors and international team of contributors, Analysis and design of plated structures is a useful standard reference for civil engineers involved in the design of plated structures. Discusses the behaviour of steel and other plated structures when under stress Extensive coverage of the key research in this important area Compiled by an international team of distinguished contributors

Fourth International Conference On Current And Future Trends In Bridge Design Construction And Maintenance

Download Read Online Fourth International Conference On Current And Future Trends In Bridge Design Construction And Maintenance book
Author: B. Barr
Publisher: Thomas Telford
ISBN: 9780727734754
Size: 19.72 MB
Format: PDF, Docs
View: 6520

Fourth International Conference On Current And Future Trends In Bridge Design Construction And Maintenance by B. Barr


Original Title: Fourth International Conference On Current And Future Trends In Bridge Design Construction And Maintenance

This is a state-of-the-art reference, an exchange of innovative experience, creative thinking and industry forecasts. This volume presents the proceedings of the fourth international conference in this series based in the Asia Pacific region, in Kuala Lumpur in October 2005 and is applicable to all sectors of the bridge engineering community.

Finite Element Analysis Of The Wolf Creek Multispan Curved Girder Bridge

Download Read Online Finite Element Analysis Of The Wolf Creek Multispan Curved Girder Bridge book
Author: John C. Lydzinski
Publisher:
ISBN:
Size: 47.23 MB
Format: PDF, Kindle
View: 1026

Finite Element Analysis Of The Wolf Creek Multispan Curved Girder Bridge by John C. Lydzinski


Original Title: Finite Element Analysis Of The Wolf Creek Multispan Curved Girder Bridge

The use of curved girder bridges in highway construction has grown steadily during the last 40 years. Today, roughly 25% of newly constructed bridges have a curved alignment. Curved girder bridges have numerous complicating geometric features that distinguish them from bridges on a straight alignment. Most notable of these features is that longitudinal bending and torsion do not decouple. Although considerable research has been conducted into curved girder bridges, and many of the fundamental aspects of girder and plate behavior have been explored, further research into the behavior and modeling of these bridges as a whole is warranted. This study developed two finite element models for the Wolf Creek Bridge, a four-plate girder bridge located in Bland County, Virginia. Both models were constructed using plate elements in ANSYS, which permits both beam and plate behavior of the girders to be reproduced. A series of convergence studies were conducted to validate the level of discretization employed in the final model. The first model employs a rigid pier assumption that is common to many design studies. A large finite element model of the bridge piers was constructed to estimate the actual pier stiffness and dynamic characteristics. The pier natural frequencies were found to be in the same range as the lower frequencies, indicating that coupling of pier and superstructure motion is important. A simplified "frame-type" pier model was constructed to approximate the pier stiffness and mass distribution with many fewer degrees of freedom than the original pier model, and this simplified model was introduced into the superstructure model. The resulting bridge model has significantly different natural frequencies and mode shapes than the original rigid pier model. Differences are particularly noticeable in the combined vertical bending/torsion modes, suggesting that accurate models of curved girder bridges should include pier flexibility. The model has been retained for use as a numerical test bed to compare with field vibration data and for subsequent studies on live load distribution in curved girder bridges. The study recommends consideration of the use of the finite element method as an analysis tool in the design of curved girder bridge structures and the incorporation of pier flexibility in the analysis.

Frp Deck And Steel Girder Bridge Systems

Download Read Online Frp Deck And Steel Girder Bridge Systems book
Author: Julio F. Davalos
Publisher: CRC Press
ISBN: 1439877629
Size: 36.72 MB
Format: PDF, Mobi
View: 6640

Frp Deck And Steel Girder Bridge Systems by Julio F. Davalos


Original Title: Frp Deck And Steel Girder Bridge Systems

Fiber-reinforced polymer (FRP) decks have been increasingly used for new construction and rehabilitation projects worldwide. The benefits of using FRP bridge decks, such as durability, light weight, high strength, reduced maintenance costs, and rapid installation, outweigh their initial in-place material costs when implemented in highway bridge projects. FRP Deck and Steel Girder Bridge Systems: Analysis and Design compiles the necessary information to facilitate the development of the standards and guidelines needed to promote further adoption of composite sandwich panels in construction. It also, for the first time, proposes a complete set of design guidelines. Providing both experimental investigations and theoretical analyses, this book covers three complementary parts: FRP decks, shear connectors between the deck and steel girders, and the behavior of bridge systems. The text presents stiffness and strength evaluations for FRP deck panels and FRP deck-girder bridge systems. While the FRP deck studies focus on honeycomb FPR sandwich panels over steel girder bridge systems, they can be adapted to other sandwich configurations. Similarly, the shear connection and bridge system studies can be applied to other types of FRP decks. Chapters discuss skin effect, core configuration, facesheet laminates, out-of-plane compression and sheer, mechanical shear connectors, and FRP deck–steel girder bridge systems. Based on the findings described in the text, the authors propose design guidelines and present design examples to illustrate application of the guidelines. In the final chapter, they also provide a systematic analysis and design approach for single-span FRP deck-stringer bridges. This book presents new and improved theories and combines analytical models, numerical analyses, and experimental investigations to devise a practical analysis procedure, resulting in FRP deck design formulations.

Recent Books :