Vol. 13, No. 2, pp. 96-116 (2017)
EXPERIMENTAL STUDY ON THE FUNDAMENTAL
MECHANICAL FEATURES OF CABLE-SUPPORTED RIBBED
BEAM COMPOSITE SLAB STRUCTURE
Wentao Qiao1,*, Qi An2, Mingshan Zhao3 and Dong Wang4
1 Associate Professor, School of Civil Engineering, Shi Jiazhuang Tiedao University, China
2PhD. Student, School of Civil Engineering, Tianjin University, China
3Research Fellow, School of Civil and Environmental Engineering, Nanyang Technological University, Singapore
4PhD. Student, Department of Civil and Environmental Engineering, UAH, Huntsville, United States
*(Corresponding author: E-mail:This email address is being protected from spambots. You need JavaScript enabled to view it.)
Received: 15 October 2015; Revised: 14 April 2016; Accepted: 30 April 2016
DOI:10.18057/IJASC.2017.13.2.1
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ABSTRACT
In this study, experiments were carried out to investigate the fundamental mechanical features of the cable-supported ribbed beam composite slab structure (CBS). A 1:5 scaled physical model was designed, fabricated and tested. The feasibility and rationality of the CBS fabrication and construction are discussed and justified. The theoretical analysis used to predict the deflection and member forces is verified. It is shown that the CBS is equipped with high stiffness and behaves linearly in terms of force-displacement relationship and all the cable forces, structural deformation, stress of the ribbed beam and strut stresses are symmetrically distributed. Through comparison analysis, the mechanical features of each span are found to be similar and each span can be considered as a relatively independent mechanical unit. When the CBS is loaded, the stresses in the ribbed beam increase gradually from the two ends towards the center, where the maximum stress and deformation locates eventually, while the distribution of cable forces and strut stresses is the other way around. Further monitoring also shows that the temperature effect on the CBS is not significant since the interior constraint forces are self-balanced by the self-adjustable support.
KEYWORDS
Cable-supported ribbed beam composite slab, mechanical features, pre-stress, fabrication, experimental research
REFERENCES
[1] Qiao, W.T., “Study of Cable-supported Structure System”, PhD Dissertation. Tianjin: Tianjin University, 2010. [in Chinese]
[2] Xue, S.D., Gao, Z.Y. and Li, X.Y., “Research Status and Prospects of Cable Domes”, Applied Mechanics and Materials, 2011, Vols. 94-96, pp. 1424-32.
[3] Zhan, W.D. and Dong, S.L., “Advances in Cable Domes”, Journal of Zhejiang University, 2004, Vol. 38, No. 10, pp. 1298-1307.
[4] Masao, S. and Kurasiro, T., “A Study on Structural Behaviors of Beam String Structure”, Summaries of Technical Papers of Annual Meeting Architectural Institute of Japan, Tokyo, Japan, 1985, Vol. B1, pp. 280–284.
[5] Masao, S., “A Study on Structural Planning of Radial Type Beam String Structures”, Summaries of Technical Papers of Annual Meeting Architectural Institute of Japan, Tokyo, Japan, 1988, Vol. B1, pp. 1365–1366.
[6] Masao, S. and Ohtake, T., “A Study on Beam String Structure with Flat Circular Arch”, Summaries of Technical Papers of Annual Meeting Architectural Institute of Japan, Tokyo, Japan, 1988, Vol. B1, pp. 1369–1374.
[7] Masao, S. and Okasa, A., “The Role of String in Hybrid String Structure”, Engineering Structures 1999, Vol. 21, No. 8, pp. 756–69.
[8] Kawaguchi, M., Abe, M. and Hatato, T., et al., “On a Structure System "Suspen-dome"”, Proc. of IASS Symposium, Istanbul, 1993, pp. 523-530.
[9] Kawaguchi, M., Abe, M. and Tatemichi, I., “Design, Tests and Realization of "Suspen-dome" System”, Journal of the IASS, 1999, Vol. 40, No. 131, pp. 179-192.
[10] Chen, Z.H. and Qiao, W.T., “A New-style Cable Supported Structure System-Cable Supported Barrel Vault Structure System”, Proc. of APCS2009, Nogoya, 2009, pp. 69-79.
[11] Chen, Z.H., Qiao, W.T. and Yan, X.Y., “Cable Supported Barrel Vault Structure System and Research on Mechanics Characteristics”, International Journal of Advanced Steel Construction, 2010, Vol. 6, No. 3, pp. 867-878.
[12] Qiao, W.T. and Chen, Z.H., “Scale model test research on cable supported barrel vault structure”, Advanced Materials Research, 2011, Vols. 163-167, pp. 465-470.
[13] Qiao, W.T., Chen, Z.H. and Zhao, M.S., “Test study on basic static characteristics of cable supported barrel vault structure”, International Journal of Advanced Steel Construction, 2012, Vol. 8, No. 2, pp. 199-211.
[14] Chen, Z.H. and Qiao, W.T., “Analysis on Cable Supported Concrete Roof Structure and its Basic Characteristics”, Building Structure, 2010, Vol. 40, No. 11, pp. 22-25. [in Chinese]
[15] Qiao, W.T., Li, Y. and Deng, Y.Z., “Research on Mechanical features of Cable-supported Ribbed Beam Composite Slab Structure”, Proc. of the 14th Conference on Modern Structural Engineering, Tianjin, China, 2014, pp. 328-332. [in Chinese]
[16] Liu, Y.P. and Chan, S.L., “Second-order Analysis for Design of Glass-supporting and Pre-tensioned Trusses”, International Journal of Structural Stability and Dynamics, 2009, Vol. 9, No. 3, pp. 489-510.
[17] Li, Z.X., “Theory and Technique of Engineering Structure Experiments”, TianJin: Tianjin University Press, 2004. [in Chinese]
[18] “GB5009-2012: Load Code for the Design of Building Structures”, Beijing: China Building Industry Press, 2012. [in Chinese]