Pushover Analysis of Light-Weight Steel Portal Frame Structures under Strong Wind Loading

Shui Fu Chen; Ying Gong

doi:10.4028/www.scientific.net/AMR.446-449.386

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 446-449Pushover Analysis of Light-Weight Steel Portal...

Pushover Analysis of Light-Weight Steel Portal Frame Structures under Strong Wind Loading

Abstract:

An elastic-plastic pushover analysis has been performed to a typical two-bay light-weight steel portal frame for investigation of the nonlinear load-deformation behaviors of the structure under strong wind loading. The finite-element model is first established for the portal frame. Then the monotonically increased lateral load and uniformly distributed vertical load representing wind loading are applied to the frame while the structure deforms from full elastic range to elastic-plastic stage. The loading process continues until the top displacement reaches its target value or enough number of plastic hinges occurs so that the structure changes to an unstable mechanism. The analysis results indicate that different lateral loading modes (top point loading or uniformly distributed loading) lead to almost the same deformation and failure behavior of the frame, and the final load-carrying capacity of the frame considerably decreases with increase of the vertical loading.

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Periodical:

Advanced Materials Research (Volumes 446-449)

Pages:

386-389

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.446-449.386

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Online since:

January 2012

Authors:

Shui Fu Chen, Ying Gong

Keywords:

Elastic-Plastic Analysis, Light-Weight Steel Portal Frame, Pushover Analysis, Ultimate Load Carrying Capacity, Wind Load

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References

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