Vol. 21, No. 5, pp. 458-475 (2025)
EXPERIMENTAL AND NUMERICAL STUDY ON CONNECTION JOINTS APPLIED
TO AUTOMATIC CONSTRUCTION DEVICE
Xian-Feng Wang 1, Qian-Xi Zhang 1, Zhi-Peng Fu 1, Wei-Lun Wang 1, *, Jian Liu 1, Xiao-Gang Zhang 1 and
Shan-Bai Dong 2
1 Guangdong Provincial Key Laboratory of Durability for Marine Civil Engineering,
State Key Laboratory of Intelligent Construction and Healthy Operation and
Maintenance of Deep Underground Engineering, College of Civil and Transportation Engineering,
Shenzhen University, Shenzhen 518060, China
2 Excellence Group Co. Ltd. Shenzhen 518052, China
*(Corresponding author: E-mail:This email address is being protected from spambots. You need JavaScript enabled to view it.)
Received: 21 September 2024; Revised: 22 February 2025; Accepted: 22 February 2025
DOI:10.18057/IJASC.2025.21.5.8
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ABSTRACT
To meet the demands of intelligent and green construction, the development of automatic construction devices is of practical significance. In this study, a novel connection joint was designed for its supporting column and investigated experimentally and numerically based on static load tests, which were carried out on five joint specimens with different axial pressure ratios, flange thicknesses, and insertion depths. It was found that the failure of all specimens was due to the bolted connection, especially the failure of the thread. However, no apparent damage was found on the tube wall of the joint, indicating that the damage mainly occurred at the bolt connection. Additionally, a finite element analysis (FEA) model was established to investigate the joint's failure process, revealing intricate stress and strain conditions under loading. Notably, the highest stress and strain were identified at the central bolt, indicating its critical role in joint failure. The parameters of tube wall thickness and flange outside diameter in the finite element model were analyzed, and the results showed that 10 mm wall thickness and 252 mm outer diameter of flange were the best choices. This study may provide an experimental and numerical basis for the practical application of automatic construction devices.
KEYWORDS
Automatic construction device, Steel joint, Static load tests, Finite element analysis, Moment-rotation relationship
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