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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.
Free-standing or self-stressing applications. Available in standard AASHTO, bulb tee and modified configurations. Furnished as a total system or for use with existing pallets or accessories. Dayton Superior has accessories in every sector of concrete construction. Our accessories are recognized for their exceptional quality and integrity.
The Lean-On Bracing System mainly consists of struts that transfer forces to one or two cross-frames at each brace location. Improved structural efficiency is possible by utilizing lean-on concepts in which several girders can be braced across the width of the bridge by a single cross-frame.
8 paź 2018 · Learn more about this webinar including accessing the course slides and receiving PDH credit at: https://www.aisc.org/bridgebracing/#.W7vN4ntKiUk
Lean-on Bracing for Steel I-Shaped Girders. This webinar will introduce the concept of the Lean-On Bracing System, which is a method of preventing lateral torsional buckling of straight, skewed and non-skewed steel plate girder bridges.
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.
Reducing the number and complexity of cross-frames can have a significant impact on the speed of fabrication, speed of erection, and overall bridge cost. Lean-on bracing represents a way to do just that and potentially eliminate 50% or more of the full cross-frames required for a routine steel I-girder bridge without adding any cost to the girders.
