Search results
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 ...
Torsional brace strength requirements for steel I-girders. Yangqing Liu1, Matthew C. Reichenbach2, Todd A. Helwig3. Abstract. Torsional bracing is often used to stabilize beams in building and bridge applications. The bracing improves the stability by restraining twist of the cross section.
When the skew is less than about 20°, inter-mediate bracing can be positioned on the skew, parallel to the lines of supports, or it can be square to the girders (in which case the 'panel lengths' of adjacent girders are slightly different - see Figure 1).
The trapezoidal box (tub) girder is frequently used for horizontally curved highway bridges because of its high torsional rigidity. The developed theory of combined bending and torsion of horizontally curved thin-walled girders is based on the assumption that the girder cross-section retains its original shape.
This Guidance Note covers the attachment of bracing members and cross girders to main I girders, usually achieved by means of connections to stiffeners or cleats on the web of the girder. The details are representa- tive of details that are used in practice, but are not the only details that are suitable in all cases.
This module 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 module may be applicable.
Steel Bridge Design Handbook: Bracing System Design. This module discusses the design of bracing systems for the superstructures of straight and curved girder systems. I-girder and box shaped members are covered.
