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Residual Stress Effects on Steel Structure Seismic Response
https://orcid.org/http://orcid.org/0000-0002-3011-5146
This paper evaluates the effect of residual stresses on the seismic response of cantilever steel structures with fibre hinges in pushover analysis, cyclic push-pull analysis, and inelastic dynamic time history analysis using OpenSEES. Residual stresses following the standard linear distribution with compression at flange tips and the web centre. Residual stress values ranging from 0.0 to 0.7 times the material yield stress are applied. It is shown that the residual stresses significantly influence the pushover lateral force-displacement performance resulting in larger displacements than without residual stress effects, especially when high axial forces are applied. During cyclic push-pull analysis, the same initial behaviour as that from the pushover lateral force-displacement was observed, but the residual stress effect disappeared after the first few cycles. During inelastic dynamic time history analyses the overall responses were similar with and without residual stress effects. This indicates that, at least for the models and records considered, residual effects on the global seismic performance of yielding structures can be ignored.
Residual Stress Effects on Steel Structure Seismic Response
https://orcid.org/http://orcid.org/0000-0002-3011-5146
This paper evaluates the effect of residual stresses on the seismic response of cantilever steel structures with fibre hinges in pushover analysis, cyclic push-pull analysis, and inelastic dynamic time history analysis using OpenSEES. Residual stresses following the standard linear distribution with compression at flange tips and the web centre. Residual stress values ranging from 0.0 to 0.7 times the material yield stress are applied. It is shown that the residual stresses significantly influence the pushover lateral force-displacement performance resulting in larger displacements than without residual stress effects, especially when high axial forces are applied. During cyclic push-pull analysis, the same initial behaviour as that from the pushover lateral force-displacement was observed, but the residual stress effect disappeared after the first few cycles. During inelastic dynamic time history analyses the overall responses were similar with and without residual stress effects. This indicates that, at least for the models and records considered, residual effects on the global seismic performance of yielding structures can be ignored.
Residual Stress Effects on Steel Structure Seismic Response
https://orcid.org/http://orcid.org/0000-0002-3011-5146
This paper evaluates the effect of residual stresses on the seismic response of cantilever steel structures with fibre hinges in pushover analysis, cyclic push-pull analysis, and inelastic dynamic time history analysis using OpenSEES. Residual stresses following the standard linear distribution with compression at flange tips and the web centre. Residual stress values ranging from 0.0 to 0.7 times the material yield stress are applied. It is shown that the residual stresses significantly influence the pushover lateral force-displacement performance resulting in larger displacements than without residual stress effects, especially when high axial forces are applied. During cyclic push-pull analysis, the same initial behaviour as that from the pushover lateral force-displacement was observed, but the residual stress effect disappeared after the first few cycles. During inelastic dynamic time history analyses the overall responses were similar with and without residual stress effects. This indicates that, at least for the models and records considered, residual effects on the global seismic performance of yielding structures can be ignored.
Residual Stress Effects on Steel Structure Seismic Response
Lecture Notes in Civil Engineering
Mazzolani, Federico M. (editor) / Piluso, Vincenzo (editor) / Nastri, Elide (editor) / Formisano, Antonio (editor) / MacRae, Gregory A. (author) / Lu, Arthur Y.-C. (author)
International Conference on the Behaviour of Steel Structures in Seismic Areas ; 2024 ; Salerno, Italy
2024-07-03
8 pages
Article/Chapter (Book)
Electronic Resource
English
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