Second-order elastoplastic analysis of semirigid steel frames under cyclic loading
The evolutive second-order geometry elastoplastic analysis of flexibly connected planar structures is performed to investigate their cyclic behavior under quasistatic loading conditions. The formulation is cast as a mathematical programming problem, involving so-called ‘‘complementarity’’ constraint...
| Main Authors: | , , |
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| Format: | Journal Article |
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Pergamon
2012
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| Online Access: | http://hdl.handle.net/20.500.11937/5050 |
| _version_ | 1848744687668559872 |
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| author | Vimonsatit, Vanissorn Tangaramvong, S. Tin-Loi, F. |
| author_facet | Vimonsatit, Vanissorn Tangaramvong, S. Tin-Loi, F. |
| author_sort | Vimonsatit, Vanissorn |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | The evolutive second-order geometry elastoplastic analysis of flexibly connected planar structures is performed to investigate their cyclic behavior under quasistatic loading conditions. The formulation is cast as a mathematical programming problem, involving so-called ‘‘complementarity’’ constraints. A ‘‘fictitious force’’ concept, that preserves static-kinematic duality, is used to describe geometric nonlinearity. A second-order approximation, deemed sufficiently accurate for practical structures, is adopted. A semirigid connection is idealized as a zero-length elastoplastic element attached to either or both ends of a beam element. Inelasticity is captured through the familiar generalized plastic hinge concept, and a piecewise linear approximation of the nonlinear plastic capacity domain is used to represent the yield condition. A number of examples concerning realistic structures and benchmark cases is provided to check the validity and applicability of the proposed method and to study the cyclic behavior of flexibly connected planar frames. |
| first_indexed | 2025-11-14T06:05:26Z |
| format | Journal Article |
| id | curtin-20.500.11937-5050 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T06:05:26Z |
| publishDate | 2012 |
| publisher | Pergamon |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-50502017-09-13T16:01:43Z Second-order elastoplastic analysis of semirigid steel frames under cyclic loading Vimonsatit, Vanissorn Tangaramvong, S. Tin-Loi, F. Steel frames Large deformations Semirigid connections Cyclic loading Mathematical programming The evolutive second-order geometry elastoplastic analysis of flexibly connected planar structures is performed to investigate their cyclic behavior under quasistatic loading conditions. The formulation is cast as a mathematical programming problem, involving so-called ‘‘complementarity’’ constraints. A ‘‘fictitious force’’ concept, that preserves static-kinematic duality, is used to describe geometric nonlinearity. A second-order approximation, deemed sufficiently accurate for practical structures, is adopted. A semirigid connection is idealized as a zero-length elastoplastic element attached to either or both ends of a beam element. Inelasticity is captured through the familiar generalized plastic hinge concept, and a piecewise linear approximation of the nonlinear plastic capacity domain is used to represent the yield condition. A number of examples concerning realistic structures and benchmark cases is provided to check the validity and applicability of the proposed method and to study the cyclic behavior of flexibly connected planar frames. 2012 Journal Article http://hdl.handle.net/20.500.11937/5050 10.1016/j.engstruct.2012.06.021 Pergamon restricted |
| spellingShingle | Steel frames Large deformations Semirigid connections Cyclic loading Mathematical programming Vimonsatit, Vanissorn Tangaramvong, S. Tin-Loi, F. Second-order elastoplastic analysis of semirigid steel frames under cyclic loading |
| title | Second-order elastoplastic analysis of semirigid steel frames under cyclic loading |
| title_full | Second-order elastoplastic analysis of semirigid steel frames under cyclic loading |
| title_fullStr | Second-order elastoplastic analysis of semirigid steel frames under cyclic loading |
| title_full_unstemmed | Second-order elastoplastic analysis of semirigid steel frames under cyclic loading |
| title_short | Second-order elastoplastic analysis of semirigid steel frames under cyclic loading |
| title_sort | second-order elastoplastic analysis of semirigid steel frames under cyclic loading |
| topic | Steel frames Large deformations Semirigid connections Cyclic loading Mathematical programming |
| url | http://hdl.handle.net/20.500.11937/5050 |