Incremental Cold Bending

AISC Design Guide 33 Curved Member Design Section 2.3.2

Incremental step bending is a cold-bending method that uses hydraulic rams to apply bending forces at several discrete, closely-spaced locations along the member. Cross-sectional elements can be supported mechanically or hydraulically to reduce distortion during the bending operation, resulting in the potential for small-radius bends with minimal distortion.