Vol. 21, No. 6, pp. 530-541 (2025)
STUDY ON HUMAN-INDUCED VIBRATION OF AN INNOVATIVE
SPATIAL CABLE-SUPPORTED FLOOR SYSTEM
Qi An 1, *, Hang-Qi Zheng 1, Yu-Hao Dong 1, Xiu-Jun Wang 2, Yan-Song Diao 1 and Zhong-Hua Wang 2
1 School of Civil Engineering, Qingdao University of Technology, Qingdao 266520, China
2 The Fourth Construction Co., Ltd. of China Construction Eighth Engineering Division, Qingdao 266000, China
*(Corresponding author: E-mail:This email address is being protected from spambots. You need JavaScript enabled to view it.)
Received: 18 March 2025; Revised: 22 July 2025; Accepted: 2 August 2025
DOI:10.18057/IJASC.2025.21.6.6
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ABSTRACT
The growing demand for expansive indoor spaces in public buildings has necessitated the development of an innovative spatial cable-supported floor system (SCSFS). Experimental results revealed that the first-order natural frequency of the test floor is 17.58 Hz, with a damping ratio of 0.028. Among the four types of loads analyzed, jumping loads induced the most significant human-induced vibration acceleration responses in the floor system, whereas walking loads had a relatively minor impact. Numerical simulations further demonstrated that parameters such as the arrangement of cable-strut system, beam height, cable cross-sectional area, and sag of cable-strut system significantly influence the natural frequency of the floor system. Moreover, these parameters, along with steel beam cross-section type and floor slab thickness, play a critical role in the acceleration response. Conversely, changes in the cross-sectional area of the struts, boundary conditions, and prestress levels were found to have minimal impact on both natural frequency and acceleration responses. This study elucidates the natural vibration characteristics and human-induced vibration mechanisms of the SCSFS, identifies the effects of key structural parameters on human-induced vibration responses, and provides a theoretical and technical foundation for the practical engineering application of SCSFS. The findings possess substantial scientific and engineering value.
KEYWORDS
Spatial cable-supported floor system, Large-span floor system structures, Human-induced vibration, Comfort analysis, Numerical simulation
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