Buy article PDF
The purchased file will be sent to you
via email after the payment is completed.
US$ 35
|
Structural Engineering and Mechanics Volume 73, Number 6, March25 2020 , pages 613-620 DOI: https://doi.org/10.12989/sem.2020.73.6.613 |
|
|
|
Experimental study on all-bolted joint in modularized prefabricated steel structure |
||
Zhanjing Wu, Zhong Tao, Bei Liu and Heng Zuo
|
||
| Abstract | ||
| The research study is focuses on a form of all-bolted joint with the external ring stiffening plate in the prefabricated steel structure. The components are bolted at site after being fabricated in the factory. Six specimens were tested under cyclic loading, and the effects of column axial compression ratio, concrete-filled column, beam flange sub plate, beam web angle cleats, and spliced column on the failure mode, hysteretic behavior and ductility of the joints were analyzed. The results shown that the proposed all-bolted joint with external ring stiffening plate performed high bearing capability, stable inflexibility degradation, high ductility and plump hysteretic curve. The primary failure modes were bucking at beam end, cracking at the variable section of the external ring stiffening plate, and finally welds fracturing between external ring stiffening plate and column wall. The bearing capability of the joints reduced with the axial compression ratio increased. The use of concrete-filled steel tube column can increase the bearing capability of joints. The existence of the beam flange sub plate, and beam web angle cleat improves the energy dissipation, ductility, bearing capacity and original rigidity of the joint, but also increase the stress concentration at the variable section of the external reinforcing ring plate. The proposed joints with spliced column also performed desirable integrity, large bearing capacity, initial stiffness and energy dissipation capacity for engineering application by reasonable design. | ||
| Key Words | ||
| modularized prefabricated steel structure; all-bolted joint; external ring stiffening plate; quasi-static test; failure model | ||
| Address | ||
| Zhanjing Wu, Zhong Tao, Bei Liu and Heng Zuo: School of Architecture Engineering, Kunming University of Science and Technology, Kunming 650500, China Zhanjing Wu: Post-doctoral Research Station of Mechanics, Kunming University of Science and Technology, Kunming 650500, China | ||