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Experimental and Theoretical Investigations on Progressive Collapse Resistance of the Concrete-Filled Square Steel Tubular Column and Steel Beam Frame under the Middle Column Failure Scenario
- Source :
- Shock and Vibration, Vol 2019 (2019)
- Publication Year :
- 2019
- Publisher :
- Hindawi Limited, 2019.
-
Abstract
- A static loading test was carried out on a 1/3-scale concrete-filled square steel tubular column-steel beam frame (CFSTSBF) specimen with 2 spans to study its progressive collapse behaviors under the middle column failure scenario using the alternate load path method and to examine the failure mode and load transfer and main resistance mechanisms of the residual structure. Then, theoretical models of the specimen, involving the whole collapse process, were developed, and the resistance and deformation relationships of each model were calculated and validated with test results. The results indicated that the specimen collapse process includes the elastoplastic stage, plastic stage, transfer stage, and catenary stage, the beam mechanism and catenary mechanism were the principal mechanisms for the structure against progressive collapse, and catenary action can significantly strengthen structural resistance. The modified theoretical models with higher practical accuracy could be used to assess structural performances against progressive collapse.
- Subjects :
- 021110 strategic, defence & security studies
Materials science
Article Subject
business.industry
Mechanical Engineering
0211 other engineering and technologies
Collapse (topology)
020101 civil engineering
Progressive collapse
02 engineering and technology
Structural engineering
Geotechnical Engineering and Engineering Geology
Condensed Matter Physics
Residual
lcsh:QC1-999
0201 civil engineering
Mechanism (engineering)
Mechanics of Materials
Catenary
Deformation (engineering)
business
Failure mode and effects analysis
Beam (structure)
lcsh:Physics
Civil and Structural Engineering
Subjects
Details
- Language :
- English
- ISSN :
- 18759203 and 10709622
- Volume :
- 2019
- Database :
- OpenAIRE
- Journal :
- Shock and Vibration
- Accession number :
- edsair.doi.dedup.....05c7a21b83ef0982599d5193c221d33c