Seismic analysis of steel structure with brace configuration using topology optimization
| Autor: | Ji Jing, Kemin Zhou, Shengfang Qiao, Xiaolei Han |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
Engineering
business.industry Continuum (topology) Frame (networking) Topology optimization Metals and Alloys 020101 civil engineering 02 engineering and technology Building and Construction Structural engineering Computer Science::Numerical Analysis Finite element method Brace 0201 civil engineering Seismic analysis 020303 mechanical engineering & transports 0203 mechanical engineering Physics::Space Physics Point (geometry) business Civil and Structural Engineering Numerical stability |
| Zdroj: | Steel and Composite Structures. 21:501-515 |
| ISSN: | 1229-9367 |
| DOI: | 10.12989/scs.2016.21.3.501 |
| Popis: | Seismic analysis for steel frame structure with brace configuration using topology optimization based on truss-like material model is studied. The initial design domain for topology optimization is determined according to original steel frame structure and filled with truss-like members. Hence the initial truss-like continuum is established. The densities and orientation of truss-like members at any point are taken as design variables in finite element analysis. The topology optimization problem of least-weight truss-like continuum with stress constraints is solved. The orientations and densities of members in truss-like continuum are optimized and updated by fully-stressed criterion in every iteration. The optimized truss-like continuum is founded after finite element analysis is finished. The optimal bracing system is established based on optimized truss-like continuum without numerical instability. Seismic performance for steel frame structures is derived using dynamic time-history analysis. A numerical example shows the advantage for frame structures with brace configuration using topology optimization in seismic performance. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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