Effects of Diaphragms in Continuous Slab and Girder Highway Bridges

Effects of Diaphragms in Continuous Slab and Girder Highway Bridges PDF Author: Albert Yao Chee Wong
Publisher:
ISBN:
Category : Concrete bridges
Languages : en
Pages : 150

Get Book Here

Book Description

Effects of Diaphragms in Continuous Slab and Girder Highway Bridges

Effects of Diaphragms in Continuous Slab and Girder Highway Bridges PDF Author: Albert Yao Chee Wong
Publisher:
ISBN:
Category : Concrete bridges
Languages : en
Pages : 150

Get Book Here

Book Description


Concrete Box-girder Bridges

Concrete Box-girder Bridges PDF Author: Jörg Schlaich
Publisher: IABSE
ISBN: 3857480319
Category : Box girder bridges
Languages : en
Pages : 114

Get Book Here

Book Description


Connection of Simple-span Precast Concrete Girders for Continuity

Connection of Simple-span Precast Concrete Girders for Continuity PDF Author: Richard A. Miller (Professional engineer)
Publisher: Transportation Research Board
ISBN: 0309087937
Category : Concrete beams
Languages : en
Pages : 202

Get Book Here

Book Description
Introduction and Research Approach -- Findings -- Interpretation, Appraisal, and Application -- Interpretation, Appraisal, and Application -- References -- Appendixes.

Lateral Load Resistance of Diaphragms in Prestressed Concrete Girder Bridges

Lateral Load Resistance of Diaphragms in Prestressed Concrete Girder Bridges PDF Author: R. E. Abendroth
Publisher:
ISBN:
Category : Bridges
Languages : en
Pages : 214

Get Book Here

Book Description
Each year several prestressed concrete girder bridges in Iowa and other states are struck and damaged by vehicles with loads too high to pass under the bridge. Whether or not intermediate diaphragms play a significant role in reducing the effect of these unusual loading conditions has often been a topic of discussion. A study of the effects of the type and location of intermediate diaphragms in prestressed concrete girder bridges when the bridge girder flanges were subjected to various levels of vertical and horizontal loading was undertaken. The purpose of the research was to determine whether steel diaphragms of any conventional configuration can provide adequate protection to minimize the damage to prestressed concrete girders caused by lateral loads, similar to the protection provided by the reinforced concrete intermediate diaphragms presently being used by the Iowa Department of Transportation. The research program conducted and described in this report included the following: A comprehensive literature search and survey questionnaire were undertaken to define the state-of-the-art in the use of intermediate diaphragms in prestressed concrete girder bridges. A full scale, simple span, restressed concrete girder bridge model, containing three beams was constructed and tested with several types of intermediate diaphragms located at the one-third points of the span or at the mid-span. Analytical studies involving a three-dimensional finite element analysis model were used to provide additional information on the behavior of the experimental bridge. The performance of the bridge with no intermediate diaphragms was quite different than that with intermediate diaphragms in place. All intermediate diaphragms tested had some effect in distributing the loads to the slab and other girders, although some diaphragm types performed better than others. The research conducted has indicated that the replacement of the reinforced concrete intermediate diaphragms currently being used in Iowa with structural steel diaphragms may be possible.

Structural & Construction Conference

Structural & Construction Conference PDF Author: Conference Editor
Publisher: CRC Press
ISBN: 9789058096012
Category : Technology & Engineering
Languages : en
Pages : 936

Get Book Here

Book Description
Objective of conference is to define knowledge and technologies needed to design and develop project processes and to produce high-quality, competitive, environment- and consumer-friendly structures and constructed facilities. This goal is clearly related to the development and (re)-use of quality materials, to excellence in construction management and to reliable measurement and testing methods.

Echinoderms: Munchen

Echinoderms: Munchen PDF Author: Thomas Heinzeller
Publisher: CRC Press
ISBN: 9780415390378
Category : Science
Languages : en
Pages : 1576

Get Book Here

Book Description
Since 1972, scientists from all over the world working on fundamental questions of echinoderm biology and palaeontology have conferred every three years to exchange current views and results. The 11th International Echinoderm Conference held at the University of Munich, Germany, from 6-10 October 2003,continued this tradition. This volume comprises 95 submitted papers and 96 abstracts covering a wide spectrum from innovative student contributions to the lessons learnt from experienced specialists. The content of the contributions ranges from original research results to the latest synopses concerning a variety of topics, including visual sensing, larval cloning, mutable collagenous tissues, sea urchin aqua-culture, deuterostome phylogeny, palaeobiology and taphonomy.

Innovative Bridge Design Handbook

Innovative Bridge Design Handbook PDF Author: Alessio Pipinato
Publisher: Elsevier
ISBN: 0323860141
Category : Technology & Engineering
Languages : en
Pages : 1048

Get Book Here

Book Description
Innovative Bridge Design Handbook: Construction, Rehabilitation, and Maintenance, Second Edition, brings together the essentials of bridge engineering across design, assessment, research and construction. Written by an international group of experts, each chapter is divided into two parts: the first covers design issues, while the second presents current research into the innovative design approaches used across the world. This new edition includes new topics such as foot bridges, new materials in bridge engineering and soil-foundation structure interaction. All chapters have been updated to include the latest concepts in design, construction, and maintenance to reduce project cost, increase structural safety, and maximize durability. Code and standard references have been updated. - Completely revised and updated with the latest in bridge engineering and design - Provides detailed design procedures for specific bridges with solved examples - Presents structural analysis including numerical methods (FEM), dynamics, risk and reliability, and innovative structural typologies

PCI Journal

PCI Journal PDF Author:
Publisher:
ISBN:
Category : Precast concrete
Languages : en
Pages : 744

Get Book Here

Book Description


Prestress Losses in Pretensioned High-strength Concrete Bridge Girders

Prestress Losses in Pretensioned High-strength Concrete Bridge Girders PDF Author: Maher K. Tadros
Publisher: Transportation Research Board
ISBN: 030908766X
Category : Technology & Engineering
Languages : en
Pages : 73

Get Book Here

Book Description
"The HCM includes three printed volumes (Volumes 1-3) that can be purchased from the Transportation Research Board in print and electronic formats. Volume 4 is a free online resource that supports the rest of the manual. It includes: Supplemental chapters 25-38, providing additional details of the methodologies described in the Volume 1-3 chapters, example problems, and other resources; A technical reference library providing access to a significant portion of the research supporting HCM methods; Two applications guides demonstrating how the HCM can be applied to planning-level analysis and a variety of traffic operations applications; Interpretations, updates, and errata for the HCM (as they are developed);A discussion forum allowing HCM users to ask questions and collaborate on HCM-related matters; and Notifications of chapter updates, active discussions, and more via an optional e-mail notification feature."--Publisher.

Prestressed Concrete Bridges

Prestressed Concrete Bridges PDF Author: Christian Menn
Publisher: Birkhäuser
ISBN: 3034891318
Category : Technology & Engineering
Languages : en
Pages : 546

Get Book Here

Book Description
This book was written to make the material presented in my book, Stahlbetonbrucken, accessible to a larger number of engineers throughout the world. A work in English, the logical choice for this task, had been contemplated as Stahlbetonbrucken was still in its earliest stages of preparation. The early success of Stahlbetonbrucken provided significant impetus for the writing of Prestressed Concrete Bridges, which began soon after the publication of its predecessor. The present work is more than a mere translation of Stahlbetonbrucken. Errors in Stahlbetonbrucken that were detected after publication have been corrected. New material on the relation between cracking in concrete and corrosion of reinforce ment, prestressing with unbonded tendons, skew-girder bridges, and cable-stayed bridges has been added. Most importantly, however, the presentation of the material has been extensively reworked to improve clarity and consistency. Prestressed Concrete Bridges can thus be regarded as a thoroughly new and improved edition of its predecessor.