Experimental study of the axial compressive strength of CHS T-joints reinforced with external stiffening rings
| Autor: | Yue Wei, Shuo Han, Limeng Ma, Qiming Song, Lei Zhu, Shuwen Li |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
musculoskeletal diseases
Chord (geometry) Materials science business.industry Mechanical Engineering 020101 civil engineering 02 engineering and technology Building and Construction Structural engineering humanities Brace 0201 civil engineering Stiffening Compressive load 020303 mechanical engineering & transports Compressive strength 0203 mechanical engineering Plastic bending Composite material business Civil and Structural Engineering |
| Zdroj: | Thin-Walled Structures. 98:245-251 |
| ISSN: | 0263-8231 |
| Popis: | This paper studies circular hollow section (CHS) T-joints by conducting experiments on the comparative axial compressive strength of unreinforced and reinforced T-joints. Three pairs of unreinforced and reinforced T-joints, a total of six specimens with the ratio of brace to chord diameter equal to 0.26, 0.51, and 0.74 respectively, were tested to determine their compressive load capacity. The specimen parameters, experimental setup, and test results are presented. The failure modes of the unreinforced and reinforced T-joints were compared. The unreinforced joints failed due to chord plastification, while the reinforced joints failed due to chord bending. The experiment indicated that the external stiffening ring significantly increased the axial compressive strength of the T-joints. Every reinforced joint behaved like a beam when loaded by concentrated force at the brace end; the strength of the reinforced joint can be predicted by calculating the plastic bending moment at the crown section. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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