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 High Performance Materials in Bridges written by Atorod Azizinamini and published by . This book was released on 2003 with total page 498 pages. Available in PDF, EPUB and Kindle. Book excerpt: This collection contains 41 papers presented at the International Conference on High Performance Materials in Bridges, held in Kona, Hawaii, July 29-August 3, 2001.
Download or read book Design of Composite Beams with Large Web Openings written by R. M. Lawson and published by . This book was released on 2011 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Ultimate Strength and Buckling Behaviour of Stiffened Webs Used in Design of Steel Box Girder Bridges written by Hong Chen and published by . This book was released on 1994 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: A parametric study on buckling behaviour and ultimate strength of box girder webs subjected to shear and combined shear and bending.
Download or read book Behavior and Design of Trapezoidally Corrugated Web Girders for Bridge Construction written by Mostafa Fahmi Hassanein and published by Woodhead Publishing. This book was released on 2022-05-07 with total page 202 pages. Available in PDF, EPUB and Kindle. Book excerpt: Corrugated web girders (CWGs), used for bridge construction, differ in important ways from conventional prismatic girders. Behavior and Design of Trapezoidally Corrugated Web Girders for Bridge Construction details the behavior and design of CWGs in bridge construction and includes unique research into high-strength steel. The title gives a comprehensive review of the last decade in CWG design. In-depth explanations of key concepts are given — such as the accordion effect — that differentiate these girders from more conventional flat-webbed girders, and the authors also present specialized research into tubular flanged girders. The book distinguishes between prismatic and tapered CWGs, explains failure modes under both shear and flexure, and gives clear figures to illustrate these modes. The volume compares international building codes and offers recommendations for future research. Seven chapters cover –– An introduction to CWGs for bridge construction; Development of bridges with corrugated webs; Real boundary conditions between flange and web; Shear buckling behavior; Flexural buckling behavior; Recent erection methods and; Future research. Enables the reader to understand advances and future directions in the behavior and design of CWGs for bridge building Reviews advances in the behavior and design of CWGs Explains concepts which make these girders different from conventional flat-webbed girders Distinguishes between the behavior of prismatic and tapered CWGs Considers the failure modes of girders under shear and flexure, as well as ultimate strength Compares international codes — such as Eurocode 3 — in useful technical detail
Download or read book Proceedings written by Structural Stability Research Council. Technical Session and published by . This book was released on 2000 with total page 498 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Inelastic Behavior of Girder Bridges Constructed Out of High Performance Steel written by Imke C. Weich and published by . This book was released on 2002 with total page 314 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Behavior of Steel Tub Girders with Optimized Bracing Layouts written by Stalin Vinicio Armijos Moya and published by . This book was released on 2019 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Composite steel tub girders are a popular alternative for straight and horizontally curved bridges due to their high torsional stiffness and aesthetic appearance. While the closed girder in the finished bridge has a high torsional stiffness, prior to curing of the concrete deck the steel girder alone is relatively flexible. Consequently, steel tub girders require extensive amounts of bracing to avoid instability and cross section distortion due to the relatively low torsional stiffness during construction. The primary bracing systems include a top flange lateral truss as well as internal and external cross frames. The quasi-closed shape that results with the added bracing, results in a stiff girder system capable of resisting significant torsional moments and deformations. However, current design and detailing practices for steel tub girders commonly include several aspects that may lead to unnecessary fabrication costs and structural inefficiencies. The top flange lateral truss is commonly installed along the entire length of steel tub girders to increase the girder torsional stiffness. However, the horizontal truss is mainly effective near the ends of the girders where the shear deformations are the largest. Thus, partial top lateral bracing systems can be an alternative for straight and mildly horizontally curved bridge applications. Additionally, the internal K-frame braces are usually installed at every panel point to control cross-sectional distortion of the girders. However, the amount of internal K-frames can be significantly reduced with little impact on the structural performance. By optimizing the amount of bracing depending on the application, steel tub girders can be more cost-effective without undermining their structural integrity. In addition to modifications in the bracing, current AASHTO Specifications have several geometric restrictions for the section geometry of steel tub girders that may not be warranted. AASHTO restricts the web slope not to exceed the limit of 1 Horizontal to 4 Vertical. Tub girders with flatter web slopes can result in girders with higher tributary widths that could potentially reduce the number of girder lines on a bridge. In addition, top flanges are required to be centered on the top of the webs. If the top flanges are permitted to offset towards inside of the tub, more space would be available to connect directly the horizontal truss and avoid undesired eccentricities due to large gusset plates. Since these cross-sectional and bracing details are not currently allowed by AASHTO Specifications, a TxDOT-sponsored research project was performed to evaluate the impact of the aforementioned details using large-scale experimental tests and parametric finite element analyses. This dissertation evaluates the feasibility of optimized bracing layouts for straight and horizontally curved steel tub girders, in addition to analyzing the impact of modified cross-sectional geometries in the ultimate flexural capacity of steel tub girders
Download or read book Innovative Bridge Structures Based on Ultra High Performance Concrete UHPC written by Xudong Shao and published by Elsevier. This book was released on 2024-01-18 with total page 976 pages. Available in PDF, EPUB and Kindle. Book excerpt: Innovative Bridge Structures Based on Ultra-High Performance Concrete (UHPC): Theory, Experiments and Applications introduces more than a dozen innovative bridge structures and engineering applications developed by the author's team based on UHPC. As the new bridge structure developed by UHPC can make outstanding contributions to the realization of the "carbon peaking and carbon neutrality goals" and "sustainable development," and since recent studies have shown that the application of UHPC is expected to greatly reduce the amount of materials and carbon emissions and prolong the life of the structure, this book is an ideal update on the topic. For example, after calculation, when UHPC is applied to the arch bridge with compression as the main stress characteristic, compared with the steel arch bridge, the dead weight of the UHPC arch bridge is basically the same, and the cost and carbon emission are only 34% and 20% of the latter. Ultra-high performance concrete (UHPC) as a new generation of civil structural materials has the characteristics of high strength, high toughness and high durability. Through the collaborative innovation of new materials and new structures, the application of UHPC in bridge engineering is expected to achieve the goal of economical, environmentally-friendly, durable and high performance of the main structure. Teachers readers about the new structures and technologies in bridge engineering developed by the author's team based on UHPC Provides relevant experimental studies and the mechanical properties of different UHPC structures Helps users understand the design method and calculation theory of UHPC bridge structures Covers the characteristics and advantages of new UHPC structures and technologies applied to engineering
Download or read book Analysis and Design of Corrugated Web I girders for Bridges Using High Performance Steel written by Hassan H. Abbas and published by . This book was released on 2003 with total page 850 pages. Available in PDF, EPUB and Kindle. Book excerpt: Based on the experimental and analytical investigations, new design criteria for flexure, fatigue and shear of corrugated web I-girders have been proposed. Bridge engineers can use these criteria to design corrugated web I-girders.
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
Download or read book Shear Resistance of Different Web Panels of Linearly Tapered Bridge Girders with Steel Corrugated Webs written by Eddy Jesus Zevallos Barrios and published by . This book was released on 2015 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Although steel girders have been u sed for many years, new gener ation of optimized steel girders is developed by the advances in structural and fabricat ion technology. Girders with corrugated webs are used in bridge s as an efficient alternative to conventional girders with flat stiffened webs, It was also found that, the vertically corrugat ed girders had a 10.6% reduction in weight when compared with the beam with flat web.[1] Advantages Economical design of steel girders normally requires thin webs. The use of corrugated webs is a possible wa y of achieving adequate out-of- plane stiffness without using stiffeners. Particularly in bri dge girders with corrugated webs (BGCWs), the corrugated webs are the main elements for bearing the shear forces. Instead of prismatic BGCWs, tapered BGCWs are currently used mainly due to their structural efficie ncy, providing at the same time aesthetical appearance. Available literature shows that tapered BGCWs may be classified into four typologies. Among these typologies, Case I and Case II are the most common cases appearing commonly near to the intermediate supports of continuous bridges. Accordingly, in this thesis, the finite element (FE) method is employed to investigate the inelastic behaviour of tapered BGCWs of Case I and Case II, fol lowing to the fundamental behaviour of such girders published recently by Hassanein et al [6]. The thesis seeks, firstly, considering initial imperfection amp litudes of 200 / 1 w h . Accordingly, with euro code 3 part 1-5, annex D [12], 1 w h is the height of the long vertical edge of the web panel, it investigates the effect of the aspect ratio of the we b panels, different flange inclination angles and different web thickness. Finally, the thesis checks previously proposed design model usi ng the results of the generated parametric studies. Overall, the outcomes of this study are exp ected to provide more insight into the behaviour of tapered BGCWs and enable accurate predict ion of the shear capacity of this special type of BGCWs.
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 Behaviour of Slender Webs of WWF Shapes and Stiffened Bridge Girders Subjected to Concentrated In plane Loads written by Dayle (Dayle Jennifer) Prowse and published by . This book was released on 1996 with total page 276 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Longitudinally Stiffened Steel Plate Girder Webs Under Patch Loading written by Carlos Graciano and published by . This book was released on 2001 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Improved Design Specifications for Horizontally Curved Steel Girder Highway Bridges written by Dann H. Hall and published by Transportation Research Board. This book was released on 1999 with total page 140 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Applied mechanics reviews written by and published by . This book was released on 1948 with total page 400 pages. Available in PDF, EPUB and Kindle. Book excerpt:
