Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
307988 | Structures | 2015 | 11 Pages |
Abstract
The paper describes the modeling of pitched roof cold-formed steel portal frames with slender cross-sections. Two types of finite element models are introduced: a shell finite element model and a modified beam finite element model. The shell element model involves explicit modeling of each structural member and accounts for the semi-rigid behavior of apex and eave joints by incorporating spring-like elements. The beam element model utilizes a reduced tangent rigidity method to account for cross-sectional instability. Both models are compared with results of experimentally tested portal frames, and good agreement is demonstrated.
Related Topics
Physical Sciences and Engineering
Engineering
Civil and Structural Engineering
Authors
Xi Zhang, Kim J.R. Rasmussen, Hao Zhang,