Advanced Steel Construction

Vol. 15, No. 1, pp. 73-81(2019)




Wen-Tao Qiao1, *, Dong Wang2, Qi An3 and Hai-Ying Zhang4

1 Associate Professor, School of Civil Engineering, Shi JiazhuangTiedao University, China

2 PE, TRC Engineering, Inc, LA, United States

3 Lecturer, School of Civil Engineering, Qingdao University of Technology, China

4 Master Candidate, School of Civil Engineering, Shi JiazhuangTiedao University, China

*(Corresponding author: E-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.">This email address is being protected from spambots. You need JavaScript enabled to view it. )

Received: 5 June 2017; Revised: 12 October 2017; Accepted: 22 January 2018




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Based on the cable-supported structure system, a new-style, highly-efficient and long-span pre-stressed floor structure, namely the cable-supported ribbed beam composite slab (CBS) was put forward. The research on dynamic behaviors of CBS was performed with both FEM and experimental methods. The research results indicate that the base frequency of CBS is low and the distribution of CBS's natural vibration frequencies is uniform and concentrated, the low-order modes are mainly vertical vibrations. Four important parameters of CBS were investigated, and the results show that the influ-ence of the slab thickness and cable diameter on CBS's natural frequency is weak. The base frequency will be enhanced by increasing the sag-span ratio, but this effect is insignificant when the sag-span ratio exceeds 0.05. Increasing the depth of ribbed beam can boost the natural vibration frequencies, and this can improve the integral rigidity of CBS. Moreover, the low base frequency of CBS is within the frequency range of the pedestrian excitation loads, five pedestrian loads were used in the analysis, and the results indicate that the vibration comfort problem is significant. The tuned mass dampers (TMD) were used to reduce the structural vibration, when the parameters, numbers and locations of TMD are well designed, the pedestrian-induced vibration is reduced significantly and the reduction efficiency is 68.62%~84.21%.



Cable-supported ribbed beam, composite slab, Cable-supported structure, Dynamic behavior, Vibration reduction, TMD


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