Investigation of the structural behavior of an innovative steel open-web floor system |
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| Authors: | Huanqiang Luan Kejian Ma Ying Qin Zhihua Chen Yanhui Wei |
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| Affiliation: | 1.Department of Civil Engineering,Tianjin University,Tianjin,China;2.Research Center of Space Structures,Guizhou University,Guizhou,China;3.Key Lab of Concrete and Prestressed Concrete Structures of Ministry of Education,Southeast University,Nanjing,China |
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| Abstract: | An experimental study was conducted on a steel open-web floor system, in which the top and bottom chords are connected by a steel square tube to form a vertical web member. A full-scale flexural test was performed to evaluate the flexural performance and failure mechanisms of the floor system. The steel open-web floor structure demonstrated a satisfactory composite behavior, and the loading capacity increased to 2.6 times the working load. A parametric study was performed to examine the effects of three geometric properties. Increasing the size of the cross sections exerted a significant effect on stiffness, and the load capacity of the open web floor system was enhanced significantly. Results show that the design method and philosophy of the open-web floor structure are in accordance with Eurocode 4 and the Chinese Code for the Design of Steel Structures. |
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