Download or read book High Performance Steel Bridge Girders written by and published by . This book was released on 2005 with total page 238 pages. Available in PDF, EPUB and Kindle. Book excerpt: High Performance Steel (HPS) has quickly gained popularity in bridge applications due to its high yield strength and better weldability, toughness, ductility, and weathering characteristics when compared to conventional grades of 50 ksi (345 MPa) structural steel. However, a great deal of information is missing from the body of knowledge on HPS performance and design criteria, especially concerning HPS-70W (485W) produced by thermo-mechanical controlled processing (TMCP). This research examines material characteristics and fatigue performance of HPS-70W (485W) TMCP, as well as its performance in inelastic loading ranges. Data from 96 tensile tests show that yield and ultimate strengths of HPS-70W (485W) TMCP are dependent upon plate thickness and orientation. 75 Charpy V-Notch (CVN) specimens were tested, and all met ASTM A709 requirement. Twenty-nine specimens were tested to investigate the fatigue resistance of HPS-70W (485W) continuous plate with punched holes. Specimen thickness, hole diameter, and hole-making method were varied to examine their effect upon fatigue resistance of punched connections utilizing HPS. Results from this investigation suggest that current restrictions mandated by some state DOTs concerning punching holes are not overly restrictive when HPS-485W (70W) is utilized. Performance of drilled and sub-punched and reamed specimens met or exceeded AASHTO (2004) requirements. Performance of Submerged Arc Weld (SAW) and Narrow Gap Improved Electroslag Weld (NGI-ESW) welded butt-splices utilizing HPS-70W (485W) were examined. Five SAW and five NGI-ESW specimens were tested in fatigue and all reached infinite life. All ten specimens performed considerably better than predicted by AASHTO. Results from this study suggest that it is reasonable to include HPS-70W (485W)welded butt-splices created using NGI-ESW in the AWS D1.5 specification (2001). Moment redistribution properties were also examined through a finite element investigation in conjunction with an inelastic AASHTO analysis. All analyses dealt with a girder from an HPS-70W (485W) TMCP bridge located near Lancaster, Ohio. The HPS-70W (485W) TMCP girder exhibited comparable inelastic moment redistribution when finite element results and AASHTO predictions were examined. Peak moment capacity was found to be significantly lower for model results than for AASHTO predictions, and this difference is likely attributable to low yield strengths and roundhousing in thicker HPS-70W (485W) TMCP plates.

Download or read book Use and Application of High performance Steels for Steel Structures written by Joël Raoul and published by IABSE. This book was released on 2005 with total page 162 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Minimum Weight High Performance Steel Bridge I girders written by Clyde Wilson Ellis and published by . This book was released on 1999 with total page 290 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Verification of Performance and Design Criteria for High Performance Steel Bridges written by and published by . This book was released on 2006 with total page 148 pages. Available in PDF, EPUB and Kindle. Book excerpt: High Performance Steel (HPS) has quickly gained popularity in United States bridge applications due to its high yield strength and better weldability, toughness, ductility, and weathering characteristics. However, a great deal of information is missing from the body of knowledge on HPS performance and design criteria, especially concerning HPS-70W (485W) produced by thermo-mechanical controlled processing (TMCP). This research examines material characteristics and fatigue performance of HPS-70W (485W) TMCP, as well the performance of Ohio's first HPS bridge in service. Data from 96 tensile tests show that yield and ultimate strengths of HPS-70W (485W) TMCP are dependent upon plate thickness and orientation. 75 Charpy V-Notch (CVN) specimens were tested, and all met the ASTM A709 requirement for minimum toughness. Twenty-nine specimens were tested to investigate the fatigue resistance of continuous plates with punched, drilled, and reamed holes. Results from this investigation suggest that current restrictions mandated by some state departments of transportation concerning punching holes are not overly restrictive when HPS-485W (70W) is utilized. Performance of drilled and sub-punched and reamed specimens met or exceeded American Association of State Highway and Transportation Officials (AASHTO) (2004) requirements for Category B details. Performance of Submerged Arc Weld (SAW) and Narrow Gap Improved Electroslag Weld (NGI-ESW) welded butt-splices utilizing HPS-70W (485W) were examined. All specimens performed considerably better than predicted by the AASHTO fatigue life equation.

Download or read book Corrugated Web Girder Fabrication written by Richard Sause and published by . This book was released on 2003 with total page 17 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Cross frame Diaphragm Bracing of Steel Bridge Girders written by W. M. Kim Roddis and published by . This book was released on 2008 with total page 70 pages. Available in PDF, EPUB and Kindle. Book excerpt: Steel plate girder bridges make use of traditional cross-frame diaphragms to stabilize the compression flange of girders. These braces are required during construction, especially during deck placement, to prevent lateral torsional buckling of bridge girders. Girder buckling capacity is a function of cross-frame diaphragm spacing as well as strength and stiffness. Recent developments in bridge design may cause the governing girder limit state to shift from one of strength to one of stability. These developments include the elimination of in-plan bracing, composite girders, High Performance Steels, and phased deck replacements. In addition, the American Association of State Highway and Transportation Officials (AASHTO) has changed its code requirement for cross-frame diaphragm spacing in the 1998 AASHTO LRFD Bridge Design Specifications. The requirement for 25-foot maximum brace spacing has been removed. The current requirement is for a "rational analysis" to determine cross-frame diaphragm spacing. Explanations of the problems these changes cause in design are discussed. A case study is presented of a bridge that suffered construction difficulties during deck placement. This investigation found that the cross-frame diaphragms were not stiff enough to brace the plate girders during the deck placement. Suggestions are given as to an efficient, economical design and spacing for cross-frame diaphragms on plate girder bridges.

Download or read book Corrugated Web Girder Shape and Strength Criteria written by Richard Sause and published by . This book was released on 2003 with total page 62 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Design and Behavior of High Performance Steel I girders with Composite Webs written by Natalie Czaplicki and published by . This book was released on 1996 with total page 130 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book FRP Deck and Steel Girder Bridge Systems written by Julio F. Davalos and published by CRC Press. This book was released on 2013-03-26 with total page 340 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents the analysis and design of fiber-reinforced polymer (FRP) bridge decks, which have been increasingly implemented in rehabilitation projects and new construction due to their reduced weight, lower maintenance costs, and enhanced durability. It compiles the necessary information, based primarily on research by the authors, to facilitate the development of standards and guidelines for using FRP decks in bridge designs. The book combines analytical models, numerical analyses, and experimental investigations, which can be applied to various design formulations. It also, for the first time, offers a complete set of design guidelines.

Download or read book Behavior of Internally Stiffened Webs for Bridge Girders Using High Performance Steel written by Robert G. Driver and published by . This book was released on 2002 with total page 115 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Steel bridge fabrication technologies in Europe and Japan written by and published by DIANE Publishing. This book was released on 2001 with total page 66 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Potential for High Performance Steel in Plate Girder Bridge Designs Under the LRFD Code written by Koji Homma and published by . This book was released on 1994 with total page 184 pages. Available in PDF, EPUB and Kindle. Book excerpt:

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

Download or read book The Superiority of the Steel Bridge written by American Institute of Steel Construction and published by . This book was released on 1929 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Development of LRFD Specifications for Horizontally Curved Steel Girder Bridges written by J. M. Kulicki and published by Transportation Research Board. This book was released on 2006 with total page 81 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report contains the findings of research performed to develop design specifications for horizontally curved steel girder bridges.

Download or read book Structural Monitoring of a High Performance Steel Box Girder Bridge written by Eric P. Feile and published by . This book was released on 2008 with total page 194 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Heat straightening Repair of Damaged Steel Bridge Girders written by Robert J. Connor and published by . This book was released on 2008 with total page 144 pages. Available in PDF, EPUB and Kindle. Book excerpt: TRB¿s National Cooperative Highway Research Program (NCHRP) Report 604: Heat-Straightening Repair of Damaged Steel Bridge Girders: Fatigue and Fracture Performance explores limits, based on fatigue and fracture performance, on the number of damage and repair cycles to which damaged steel bridge girders may be subjected using the heat-straightening procedure.