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Impact Of Construction Loads On Steel Diaphragm Bridge Design
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Book Synopsis Impact of Construction Loads on Steel Diaphragm Bridge Design by : Lauren K. Stewart
Download or read book Impact of Construction Loads on Steel Diaphragm Bridge Design written by Lauren K. Stewart and published by . This book was released on 2022 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Structural Impact of Construction Loads by : Daniel McPheron
Download or read book Structural Impact of Construction Loads written by Daniel McPheron and published by Purdue University Press. This book was released on 2012-11 with total page 42 pages. Available in PDF, EPUB and Kindle. Book excerpt: Numerous bridge construction accidents have occurred across the country because of construction loadings, which are an under-emphasized topic in many DOT specifications and design manuals. Bridge girders are least stable when they are subjected to construction loads, so it is important for design engineers and contractors to understand and design for these loads. The Indiana Department of Transportation's current Standard Specifications does not contain many construction load provisions, so this study was performed to identify and implement new requirements to proactively prevent accidents from occurring in Indiana. Various documents were examined in this study, including AASHTO and ASCE standards in addition to several other states DOT Standard Specifications and Design Manuals. Based on these documents, new falsework and formwork design loads, including horizontal loads, impact loads, and wind load, were developed and proposed to INDOT, which currently only specifys a dead load and live load. A set of drawings showing proposed minimum lateral bracing requirements was also developed to help ensure the stability of prestressed concrete and steel girders during construction.
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
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 Dynamic Impact Factors for Bridges by : David I. McLean
Download or read book Dynamic Impact Factors for Bridges written by David I. McLean and published by Transportation Research Board. This book was released on 1998 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt: This synthesis will be of interest to state department of transportation and consulting bridge, structural, and research engineers. The synthesis describes the current state of the practice for determining dynamic impact factors for bridges. Information for the synthesis was collected by surveying U.S. and Canadian transportation agencies and by conducting a literature search using domestic and foreign sources. This report of the Transportation Research Board documents relevant background and recent information with regard to vehicular dynamic load effects on bridges. It provides details on the basic concepts of bridge dynamics, including identification of the main variables affecting bridge dynamic response. In addition, current code provisions for accounting for vehicular dynamic load effects for new bridge design and load evaluation of existing bridges are reported, including a discussion on the background of the provisions. Finally, a discussion of observed field problems associated with vehicular dynamic load effects, as obtained from the survey, are included.
Book Synopsis Steel Diaphragms in Prestressed Concrete Girder Bridges by : Robert Emil Abendroth
Download or read book Steel Diaphragms in Prestressed Concrete Girder Bridges written by Robert Emil Abendroth and published by . This book was released on 2004 with total page 153 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :American Association of State Highway and Transportation Officials Publisher :AASHTO ISBN 13 :1560514698 Total Pages :38 pages Book Rating :4.5/5 (65 download)
Book Synopsis LRFD Guide Specifications for the Design of Pedestrian Bridges by : American Association of State Highway and Transportation Officials
Download or read book LRFD Guide Specifications for the Design of Pedestrian Bridges written by American Association of State Highway and Transportation Officials and published by AASHTO. This book was released on 2009 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Improved Design Specifications for Horizontally Curved Steel Girder Highway Bridges by : Dann H. Hall
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:
Book Synopsis A Design Procedure for Intermediate External Diaphragms on Curved Steel Trapezoidal Box Girder Bridges by : Matthew Alex Memberg
Download or read book A Design Procedure for Intermediate External Diaphragms on Curved Steel Trapezoidal Box Girder Bridges written by Matthew Alex Memberg and published by . This book was released on 2002 with total page 124 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Lateral Load Resistance of Diaphragms in Prestressed Concrete Girder Bridges by : R. E. Abendroth
Download or read book Lateral Load Resistance of Diaphragms in Prestressed Concrete Girder Bridges written by R. E. Abendroth and published by . This book was released on 1991 with total page 214 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Book Synopsis Live Load Effects in Diaphragms of Concrete Slab-on-steel Girder Highway Bridges by : Kenneth Carl Saindon
Download or read book Live Load Effects in Diaphragms of Concrete Slab-on-steel Girder Highway Bridges written by Kenneth Carl Saindon and published by . This book was released on 1994 with total page 130 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Design and Construction of Modern Steel Railway Bridges by : John F. Unsworth
Download or read book Design and Construction of Modern Steel Railway Bridges written by John F. Unsworth and published by CRC Press. This book was released on 2017-08-03 with total page 861 pages. Available in PDF, EPUB and Kindle. Book excerpt: This new edition encompasses current design methods used for steel railway bridges in both SI and Imperial (US Customary) units. It discusses the planning of railway bridges and the appropriate types of bridges based on planning considerations.
Author :American Society of Civil Engineers Publisher :Amer Society of Civil Engineers ISBN 13 :9780784404881 Total Pages :352 pages Book Rating :4.4/5 (48 download)
Book Synopsis Minimum Design Loads for Buildings and Other Structures by : American Society of Civil Engineers
Download or read book Minimum Design Loads for Buildings and Other Structures written by American Society of Civil Engineers and published by Amer Society of Civil Engineers. This book was released on 2000 with total page 352 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Assessing the Needs for Intermediate Diaphragms in Prestressed Concrete Bridges by :
Download or read book Assessing the Needs for Intermediate Diaphragms in Prestressed Concrete Bridges written by and published by . This book was released on 2008 with total page 27 pages. Available in PDF, EPUB and Kindle. Book excerpt: Reinforced concrete Intermediate Diaphragms (IDs) are currently being used in prestressed concrete (PC) girder bridges in Louisiana. Some of the advantages of providing IDs are disputed in the bridge community because the use of IDs increases the cost and time of construction. There is no consistency in the practice of providing IDs among various states and codes of practice, and the overall effectiveness of IDs, as well as the need for them in prestressed concrete bridges, is unclear. The objectives of this research were (1) to assess the need of reinforced concrete (RC) IDs in PC girder bridges and to determine their effectiveness, and (2) to search for a possible alternative steel diaphragm configuration that could replace concrete diaphragms if necessary. The research team has examined and reviewed state-of-the-art technology and current practices from many sources of information on IDs. Through a survey questionnaire and review of the Louisiana Department of Transportation and Development (LADOTD) Bridge Design Manual, the research team obtained relevant information regarding the ID practices in Louisiana. Through the LADOTD data base for all state bridges, and from direct interaction with district engineers, several of the bridges that are of interest for this study were selected for field inspection. From these field trips to various bridge locations, much information has been acquired from the bridges themselves, as well as from the district engineers. Systematic parametric studies for various bridge configurations, which are representative of an entire range of bridge geometries with different parameters, were analyzed through simplified and solid finite element models. This study was performed on right and skewed bridges, which are simply supported and continuous. A reduction factor that could be multiplied by the AASHTO load distribution factor to account for the influence of the diaphragm in load distribution was developed. A finite element analysis was carried out using 3-D solid models to assess the effectiveness of various diaphragms in protecting the girders against the lateral impact and to determine the design forces in the steel bracing members during construction of deck. The results from the parametric studies indicated that several parameters such as skew, span length, spacing, stiffness of diaphragm and girder have different levels of influence on the effectiveness of diaphragms in live load distribution for bridges. Correction factors that could quantify the ID influence on load distribution were developed. Results from various studies indicated that a steel diaphragm section can possibly replace the RC diaphragms. A prestressed concrete bridge was tested in the field. This bridge was selected by an inspection team comprised of personnel from FHWA, LADOTD, and the LSU research team and is located over Cypress Bayou on LA 408 East, in District 61. A comprehensive instrumentation and loading scheme is presented and illustrated in this report. The instrumentation consists of LVDTs - Linear Variable Differential Transformers (to measure the midspan deflection of each girder), accelerometers, strain gauges, and acoustic emission sensors. The measured results are presented, and comparisons are made between the finite element model and the field tests.
Book Synopsis Bridge Engineering Handbook by : Wai-Fah Chen
Download or read book Bridge Engineering Handbook written by Wai-Fah Chen and published by CRC Press. This book was released on 2019-09-11 with total page 690 pages. Available in PDF, EPUB and Kindle. Book excerpt: First Published in 1999: The Bridge Engineering Handbook is a unique, comprehensive, and state-of-the-art reference work and resource book covering the major areas of bridge engineering with the theme "bridge to the 21st century."
Book Synopsis Bridge Engineering Handbook by : Wai-Fah Chen
Download or read book Bridge Engineering Handbook written by Wai-Fah Chen and published by CRC Press. This book was released on 2014-01-24 with total page 734 pages. Available in PDF, EPUB and Kindle. Book excerpt: Over 140 experts, 14 countries, and 89 chapters are represented in the second edition of the Bridge Engineering Handbook. This extensive collection highlights bridge engineering specimens from around the world, contains detailed information on bridge engineering, and thoroughly explains the concepts and practical applications surrounding the subjec
Book Synopsis Bridge Engineering Handbook, Five Volume Set by : Wai-Fah Chen
Download or read book Bridge Engineering Handbook, Five Volume Set written by Wai-Fah Chen and published by CRC Press. This book was released on 2014-01-24 with total page 3130 pages. Available in PDF, EPUB and Kindle. Book excerpt: Over 140 experts, 14 countries, and 89 chapters are represented in the second edition of the Bridge Engineering Handbook. This extensive collection provides detailed information on bridge engineering, and thoroughly explains the concepts and practical applications surrounding the subject, and also highlights bridges from around the world.Published