National Steel Bridge Alliance


Guideline "G" Documents

 
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G1.1-2000 Shop Drawing Approval Review/Approval Guidelines

  • AASHTO Publication Code: NSBASDDRAG-1
  • Format: PDF
  • Category: Guide
  • Applicable Groups: Engineers, Owners, Fabricators

Description: G1.1-2000 sets typical guidelines and a framework of responsibilities for the approval of shop drawings.

 

 
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G1.2-2003 Design Drawings Presentation Guidelines

  • AASHTO Publication Code: NSBADDPG-1
  • Format: PDF
  • Category: Guide
  • Applicable Groups: Engineers, Owners, Fabricators

Description: G1.2-2003 should be used by the engineer in the development of design drawings. The document advises the engineer on the minimum information required to detail and fabricate a structure. Included in G1.2 are sample drawings illustrating the needed information.

 

 
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G1.3-2002 Shop Detail Drawing Presentation Guidelines

  • AASHTO Publication Code: NSBASDDP-1
  • Format: PDF
  • Category: Guide
  • Applicable Groups: Engineers, Owners, Fabricators

Description: G1.3-2002 can be referenced by fabricators during the development of shop drawings. The document provides a framework for the development of shop drawings and can be referenced by engineers and owners during the approval process. Included in G1.3 are sample drawings.

 

 
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G1.4-2006 Guidelines for Design Details

  • AASHTO Publication Code: NSBAGDD-1
  • Format: PDF
  • Category: Guide
  • Applicable Groups: Engineers, Fabricators

Description: G1.4-2006 is a collection of sample design details that allow for the economical fabrication and erection of bolted splices, crossframes, and stiffeners. Included in G1.4 are economical solutions for rolled beams, plate girders, and tub girders.

 

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G2.2-2016 Guidelines for Resolution of Steel Bridge Fabrication Errors

  • AASHTO Publication Code: NSBAGRSB-1
  • Format: PDF
  • Category: Guide
  • Applicable Groups: Fabricator, Contractor, Owner, Engineer

Description: G2.2-2016 addresses common issues that can result during the fabrication process. From a misaligned bolt hole to a miscut member this document discusses the common issues and how the errors should be resolved. Many times, the fix can be more costly and detrimental than the original error. This document provides the necessary guidance to ensure an economical fix that preserves the long term resilience of steel girders.

 

 
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G4.1-2019 Steel Bridge Fabrication QC QA Guidelines

  • AASHTO Publication Code: NSBASBFQC-1
  • Format: PDF
  • Category: Guide
  • Applicable Groups: Owners, Fabricators

Description: G4.1-2019 sets potential minimum requirements for a fabricator's quality control program and an owner's quality assurance program. G4.1 puts emphasis on the development and implementation of a comprehensive program for fabricators. This document supersedes S4.1 and provides information that is complementary to applicable welding codes and AISC standards and will be useful for developing a Fabricator Quality Control (QC) System and corresponding Quality System Manual.

 

 
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G4.2-2006 Recommendations for the Qualification of Structural Bolting Inspectors

  • AASHTO Publication Code: NSBAQSBI-1
  • Format: PDF
  • Category: Guide
  • Applicable Groups: Owners, Fabricators

Description: G4.2-2006 developed guidelines to define essential factors involved in structural bolting and the qualification of personnel inspecting and monitoring those operations.

 

 
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G4.4-2006 Sample Owners Quality Assurance Manual

  • AASHTO Publication Code: NSBAOQA-1
  • Format: PDF
  • Category: Guide 
  • Applicable Groups: Owners, Fabricators

Description: G4.4-2006 serves as a sample quality assurance manual to be used as a guide for Bridge Owners or third party inspection agencies to develop their own quality assurance plans.

 

 
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G9.1-2004 Steel Bridge Bearing Design and Detailing Guidelines

  • AASHTO Publication Code: NSBASBB-1
  • Format: PDF
  • Category: Guide 
  • Applicable Groups: Engineers, Fabricators

Description: G9.1-2004 presents steel bridge bearing details that are cost effective, functional, and durable. This document covers the design and detailing of Elastomeric, High Load Multi-Rotational and Steel bearings.

 

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G12.1-2020 Guidelines to Design for Constructability and Fabrication

  • AASHTO Publication Code: NSBAGDC-4
  • Format: PDF
  • Category: Guide
  • Applicable Groups: Fabricator, Owner, Engineer

Description: G12.1-2020 is an update to the 2016 edition. G12.1 is intended for use throughout the design and fabrication process to ensure efficient and economical girder design and construction. It complements the AASHTO LRFD Bridge Design and Construction Specifications with guidance and best practices that can lead to highway bridges that are more economical to fabricate, construct and maintain. This edition features numerous updates that reflect advancements within the industry along with changes to related specifications.

 

 
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G13.1-2019 Guidelines for Steel Girder Bridge Analysis

  • AASHTO Publication Code: NSBAGBA-3
  • Format: PDF
  • Category: Guide 
  • Applicable Groups: Engineers

Description: G13.1-2019 is an update to the 2014 document of the same name. The document provides a comprehensive treatment of issues in steel girder analysis. Included in the document is guidance pertaining to the appropriate level of analysis based on geometric complexity.