Blog posts tagged with 'design guide 33 curved member design'

Common questions we receive from customers have to do with the stresses put on materials during the rolling, curving, forming, and bending processes. 

1. What stresses are put on the materials during the curving process?
2. What is the stress, strain on the steel being bent or curved?
3. Is the material weakened from the stress, strain during the curving process?
4. Is there a stress, strain diagram for curved or bent steel?
5. Is there a stress vs strain graph for curved or bent steel?

The easiest way to answer these questions is to reference the AISC Curved Member Design Guide #33.

https://www.albinaco.com/pdfs/design-guide-33.pdf

See Section 5.2 “Material Properties”

Cold bending involves inelastic straining of the member, which affects the material properties. These changes are primarily attributed to strain hardening and strain aging, which increases the yield stress, ultimate stress and hardness, and decreases the ductility and toughness. For curved members in buildings, the strains induced during the cold-bending process rarely exceed the potential strains induced in the manufacturing process of straight members.

AISC recently released the first ever Design Guide of its kind in the United States offering information on the fabrication, design and detailing of curved members and we are offering you a FREE DOWNLOAD of the Design Guide from AISC.

Design Guide 33 was a collaborative effort of the members of the AISC Bender/Roller committee. We worked together for many years to provide this invaluable resource for the industry. Modern Steel Construction recently published an article titled "Design with a Twist" in the October 2018 Issue giving a brief highlight of topics covered in the Design Guide. AISC also created a very insightful webinar for their continuing education program titled "Design of Curved Members." If you are interested in obtaining a print copy of the Design Guide to assist with your efforts in specifying curved steel members, please contact us and we will be happy to get one to you!