TxDOT Research Library - Publication Details

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Title:

Steel Bridge Design Handbook. Chapter 13, Bracing System Theory and Design for I-Girders and Tub Girders

Authors:

Original Authors: Todd Helwig and Joseph Yura (University of Texas at Austin); Revision Author: Michael Grubb

Published:

2022

Chicago, Illinois

American Institute of Steel Construction

Type:

Online document

1 PDF (92 pages)

Online Access:

https://www.aisc.org/globalassets/nsba/design-reso...

Access Note:

3.1 MB

Summary

This volume discusses the design of bracing systems for the superstructures of straight and curved girder systems. I-girder and box shaped members are covered. Bracing for other types of bridges, such as truss, arch or towers is not specifically addressed; however much of the information included in this volume may be applicable. Bracing systems serve a number of important roles in both straight and horizontally curved bridges. The braces provide stability to the primary girders as well as improving the lateral or torsional stiffness and strength of the bridge system both during construction and in service. Depending on the geometry of the bridge, braces may be designated as either primary or secondary members.

The Engineer needs to recognize the importance of the bracing systems and bracing member design for appropriate construction and in-service stages. This volume provides an overview of the design requirements for the braces so that engineers can properly size the members to provide adequate strength and stiffness.

This volume provides: a) an overview of bracing utilized for I-girders, b) a discussion of the bracing systems for tub girders, and c) design requirements for the members and connections of bracing systems.

Publ. Place

Chicago, Illinois

Notes

"February 2022"
• "The previous edition of this Handbook was published as FHWA-HIF-16-002 and was developed to be current with the 7th edition of the AASHTO LRFD Bridge Design Specifications. This edition of the Handbook was updated to be current with the 9th edition of the AASHTO LRFD Bridge Design Specifications, released in 2020."