STUDY ON THE SEISMIC PERFORMANCE OF RECYCLED AGGREGATE CONCRETE-FILLED LIGHTWEIGHT STEEL TUBE FRAME WITH DIFFERENT ASSEMBLY JOINTS

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  • Liu Wenchao Office of Postdoctoral Research, Beijing University of Technology, Beijing 100124, China
  • Cao Wanlin Key Laboratory of Urban Security and Disaster Engineering, Beijing University of Technology, Beijing 100124, China
  • Qiao Qiyun Key Laboratory of Urban Security and Disaster Engineering, Beijing University of Technology, Beijing 100124, China
  • Ren Lele Key Laboratory of Urban Security and Disaster Engineering, Beijing University of Technology, Beijing 100124, China
  • Wang Ruwei Key Laboratory of Urban Security and Disaster Engineering, Beijing University of Technology, Beijing 100124, China

DOI:

https://doi.org/10.14311/CEJ.2018.03.0026

Klíčová slova:

Recycled aggregate concrete-filled steel tube frame, Beam-column joints, Assembly structure, Seismic performance, Experimental research, Simulation

Abstrakt

In order to investigate the construction of column-to-beam joints and to understand the
effect of recycled aggregate concrete (RAC) and cross-section of beams and columns on the
seismic performance of recycled aggregate concrete-filled light steel tubular frame structure, four
new types of assembly joints were proposed in this paper. A low cyclic loading test of six frame
specimens was carried out. The failure characteristic, load bearing capacity, hysteresis property,
ductility, strength and stiffness degradation, and energy dissipation were analysed. The damage
process of the specimen was simulated using the ABAQUS software, and the results agreed well
with those obtained from the experiments. The results showed that the construction pathway of the
joints exhibited significant influence on the seismic performance of the frame. The proposed
reinforced joint (using angle steel and stiffeners) significantly improved the bearing capacity,
stiffness and energy dissipation capacity of the recycled aggregate concrete-filled steel tube frame.
The seismic performance of the steel frame was improved, while the energy dissipation capacity
increased by 635.7% using RAC filled in the steel tubes. Finally, by appropriately increasing the
size of cross-section on the beams and columns can improve the bearing capacity, stiffness and
ductility of the structure.

Stažení

Data o stažení nejsou doposud dostupná.

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Stahování

Publikováno

2018-10-31

Jak citovat

Wenchao, L., Wanlin, C., Qiyun, Q., Lele, R., & Ruwei, W. (2018). STUDY ON THE SEISMIC PERFORMANCE OF RECYCLED AGGREGATE CONCRETE-FILLED LIGHTWEIGHT STEEL TUBE FRAME WITH DIFFERENT ASSEMBLY JOINTS. Stavební Obzor - Civil Engineering Journal, 27(3). https://doi.org/10.14311/CEJ.2018.03.0026

Číslo

Vol 27 No 3 (2018)

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