Structural Steel Bridge Shop Drawings

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This document is disseminated under the sponsorship of the U S Department of Transportation in. the interest of information exchange The U S Government assumes no liability for use of the. information contained in this document This report does not constitute a standard specification. or regulation,Quality Assurance Statement, The Federal Highway Administration provides high quality information to serve Government. industry and the public in a manner that promotes public understanding Standards and policies. are used to ensure and maximize the quality objectivity utility and integrity of its information. FHWA periodically reviews quality issues and adjusts its programs and processes to ensure. continuous quality improvement,Steel Bridge Design Handbook. Structural Steel Bridge Shop Drawings,Publication No FHWA IF 12 052 Vol 3. November 2012,Technical Report Documentation Page, 1 Report No 2 Government Accession No 3 Recipient s Catalog No. FHWA IF 12 052 Vol 3,4 Title and Subtitle 5 Report Date.
Steel Bridge Design Handbook Structural Steel Bridge Shop Drawings November 2012. 6 Performing Organization Code,7 Author s 8 Performing Organization Report No. Walter Gatti Tensor Engineering, 9 Performing Organization Name and Address 10 Work Unit No. HDR Engineering Inc,11 Stanwix Street 11 Contract or Grant No. Pittsburgh PA 15222, 12 Sponsoring Agency Name and Address 13 Type of Report and Period Covered. Office of Bridge Technology Technical Report, Federal Highway Administration March 2011 November 2012.
1200 New Jersey Avenue SE,Washington D C 20590,15 Supplementary Notes. Specifications 5th Edition with 2010 Interims,16 Abstract. 14 Sponsoring Agency Code, This module was edited in 2011 by HDR Engineering Inc to be current with the AASHTO LRFD Bridge Design. The preparation of shop drawings is a very specialized process with its own language and methods The drawings and data for. fabrication are developed from information presented on the contract drawings These drawings contain the basic bridge. geometry pier and sub structure locations and design as well as the sizes of all material weld and bolt sizes and the basic. connection information Fabrication thus the shop drawings must adhere to all the applicable specifications and the information. on the contract plans With this in mind the detailers shop drawing producers must have experience knowledge and ability to. translate contract information into shop drawings Steel bridge fabrication is a field unlike any others such as building. construction therefore most detailers who prepare steel bridge shop drawings specialize in bridges and very few of them detail. buildings or other steel structures This document contains the history present practices and illustrations of the fundamentals of. shop detail drawings for steel bridges and is not intended to cover every type of bridge structure The purpose is to familiarize. engineers detailers and other individuals involved with steel bridge fabrication on the preparation and use of shop detail. 17 Key Words 18 Distribution Statement, Steel Bridge Shop Drawings Fabrication Detailer No restrictions This document is available to the public through. the National Technical Information Service Springfield VA. 19 Security Classif of this report 20 Security Classif of this page 21 No of Pages 22 Price. Unclassified Unclassified, Form DOT F 1700 7 8 72 Reproduction of completed pages authorized.
Steel Bridge Design Handbook,Structural Steel Bridge Shop Drawings. Table of Contents,FOREWORD 1,1 0 INTRODUCTION 3,2 0 HISTORY 4. 2 1 Origin 4,2 2 Mid 1950 s 4,2 3 Mid 1980 s 4,SHOP DRAWING USAGE 5. 3 1 Original Use 5,3 2 Current Use 5,3 3 Future Use 5. DRAWING PRODUCTION PROCESS 7,4 1 Manual Process 7,4 2 Computer Generated Process 7.
5 0 SHOP DRAWING TYPES AND REQUIREMENTS 9,5 1 Example Shop Drawings 9. 5 1 1 Calculation Plans or Work Sheets WS 9,5 1 2 Typical Details TD 9. 5 1 3 General Notes GN G N 9,5 1 4 Camber and Web Splicing Drawings WC C BG 10. 5 1 5 Flange Plate Curving Splicing Diagram FS FC BG 10. 5 1 6 Horizontal Curving Diagrams HC 10,5 1 7 Shop Assembly Diagrams SA or BD 10. 5 1 8 Standard Detail Drawings X M 11,5 1 9 Girder or Stringer Details 11.
5 1 10 Cross frame Diaphragm Details Numbered sheets 11. 5 1 11 Erection Framing Plan E 12,5 1 12 Field Bolt List E or Numbered sheet 12. 5 2 Special Conditions 12,5 2 1 Skewed Bearing Lines 12. 5 3 Staged Construction 13,List of Figures, Figure 1 Example shop drawing showing the calculation plan 14. Figure 2 Example shop drawing showing the layout of typical details 15. Figure 3 Example shop drawing showing the general shop notes 16. Figure 4 Example shop drawing showing the web camber and flange diagrams 17. Figure 5 Example shop drawing showing a flange splicing diagram 18. Figure 6 Example shop drawing showing a horizontal curve diagram 19. Figure 7 Example shop drawing showing a shop assembly diagram 20. Figure 8 Example shop drawing showing girder standards stiffeners 21. Figure 9 Example shop drawing showing girder standards splice plates 22. Figure 10 Example shop drawing showing a girder elevation and sections 23. Figure 11 Example shop drawing showing cross frame standards 24. Figure 12 Example shop drawing showing a cross frame 25. Figure 13 Example shop drawing showing a cross frame 26. Figure 14 Example shop drawing showing the erection framing plan and field bolt list 27. Figure 15 Example shop drawing showing a worksheet calculation plan 28. Figure 16 Example shop drawing of typical details girder elevations 29. Figure 17 Example shop drawing of typical details cross frame layouts 30. Figure 18 Example shop drawing of typical details cross frame layouts 31. Figure 19 Example shop drawing of typical details field splice layout 32. Figure 20 Example shop drawing of typical details horizontal curve diagrams 33. Figure 21 Example shop drawing of typical details web camber diagrams 34. Figure 22 Example shop drawing of typical details general shop notes 35. Figure 23 Example shop drawing of typical details erection framing plan 36. Figure 24 Example shop drawing of typical details erection framing plan 37. Figure 25 Example shop drawing of typical details shop assembly diagram 38. It took an act of Congress to provide funding for the development of this comprehensive. handbook in steel bridge design This handbook covers a full range of topics and design. examples to provide bridge engineers with the information needed to make knowledgeable. decisions regarding the selection design fabrication and construction of steel bridges The. handbook is based on the Fifth Edition including the 2010 Interims of the AASHTO LRFD. Bridge Design Specifications The hard work of the National Steel Bridge Alliance NSBA and. prime consultant HDR Engineering and their sub consultants in producing this handbook is. gratefully acknowledged This is the culmination of seven years of effort beginning in 2005. The new Steel Bridge Design Handbook is divided into several topics and design examples as. Bridge Steels and Their Properties,Bridge Fabrication. Steel Bridge Shop Drawings,Structural Behavior,Stringer Bridges.
Loads and Combinations,Structural Analysis,Redundancy. Limit States,Selecting the Right Bridge Type,Design for Constructibility. Design for Fatigue,Bracing System Design,Splice Design. Substructure Design,Deck Design,Load Rating,Corrosion Protection of Bridges. Design Example Three span Continuous Straight I Girder Bridge. Design Example Two span Continuous Straight I Girder Bridge. Design Example Two span Continuous Straight Wide Flange Beam Bridge. Design Example Three span Continuous Straight Tub Girder Bridge. Design Example Three span Continuous Curved I Girder Beam Bridge. Design Example Three span Continuous Curved Tub Girder Bridge. These topics and design examples are published separately for ease of use and available for free. download at the NSBA and FHWA websites http www steelbridges org and. http www fhwa dot gov bridge respectively, The contributions and constructive review comments during the preparation of the handbook.
from many engineering processionals are very much appreciated The readers are encouraged to. submit ideas and suggestions for enhancements of future edition of the handbook to Myint Lwin. at the following address Federal Highway Administration 1200 New Jersey Avenue S E. Washington DC 20590,M Myint Lwin Director,Office of Bridge Technology. 1 0 INTRODUCTION, This document contains the history present practices and illustrations of the fundamentals of. shop detail drawings for steel bridges and is not intended to cover every type of bridge structure. The purpose is to familiarize engineers detailers and other individuals involved with steel bridge. fabrication on the preparation and use of shop detail drawings. Over the years the fabrication of steel bridges has been totally dependent upon the shop. drawings They are used or referenced throughout the entire fabrication process as well as for. shipping and erection In recent years the shop drawing process has changed dramatically. The preparation of shop drawings is a very specialized process with its own language and. methods The drawings and data for fabrication are developed from information presented on. the contract drawings These drawings contain the basic bridge geometry pier and sub structure. locations and design as well as the sizes of all material weld and bolt sizes and the basic. connection information These are usually prepared by a consulting engineer for the owner. Fabrication thus the shop drawings must adhere to all the applicable specifications and the. information on the contract plans With this in mind the detailers shop drawing producers must. have experience knowledge and ability to translate contract information into shop drawings. Steel bridge fabrication is a field unlike any others such as building construction therefore most. detailers who prepare steel bridge shop drawings specialize in bridges and very few of them. detail buildings or other steel structures, Most bridge fabricators contract their shop drawing production to independent detailing offices. There are a few fabricators that maintain their own in house detailing capabilities Even these. fabricators utilize outside sub let offices for a significant amount of their shop drawings Sub let. detailing offices must provide shop drawings that not only meet all the contract drawings. information the controlling specifications but also must satisfy the unique requirements of the. fabricator for which they are working, The shop drawings are a significant part of fabrication and have a significant impact on the. success of the project The detailer s experience and ability to produce a timely and accurate set. of shop detail drawings will influence the success or failure of the project During the process of. producing shop drawings there are almost always questions arising about the contract. documents These problems must be resolved in a timely manner and it is the detailer s. responsibility to resolve these The communication between detailer and owner or owner s. representative is critical in order to complete the shop drawings efficiently and on time. Another step in the process of shop drawing detailing cycle is the owner s review of the. drawings or approval process Fabrication cannot begin without the owner s approval of the. shop drawings This can be a lengthy process which delays and adds cost to the fabrication and. construction cycle The production and approval of shop drawings take up to half of the required. time for the fabrication process and therefore plays an important role in the timely completion of. the entire project,2 0 HISTORY,2 1 Origin, Shop drawings for steel bridges started over one hundred years ago They were hand drawn in.
ink usually on linen sheets or by pencil on vellum This was done in order to produce a clear. blueprint white lines on blue background and to have high archival qualities This method of. detailing was used up until the 1950 s,2 2 Mid 1950 s. Sometime in the mid 50 s new copying equipment was introduced These machines used an. ammonia process which permitted the use of sepias or reproductions on translucent materials like. mylar and vellum This made a major impact on the time it took to produce a shop drawing. Masters or generic type drawings were used to create the picture and the detailer added the. dimensions by hand These originals were then printed using ammonia copying machines that. produced a black or blue line on a white background. 2 3 Mid 1980 s, In the mid 80 s CAD computer aided drafting software became available and evolved whereby. in the mid 90 s many detail drawings were made exclusively by software and CAD systems. The current process of digital printing permits multiple collated sets of almost any size This in. conjunction with CAD eliminates the original hard copy drawings by replacing them with an. electronic file,3 0 SHOP DRAWING USAGE,3 1 Original Use. The original use of shop drawings was to give shop personnel detailed drawings of each member. and to prepare other items such as material orders and erection plans From these drawings full. size templates would be made usually from cardboard . shop detail drawings for steel bridges and is not intended to cover every type of bridge structure The purpose is to familiarize engineers detailers and other individuals involved with steel bridge fabrication on the preparation and use of shop detail drawings

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