| The cable supported structure system is an effective spatial structure, which is applied into long-span building widely. The cable dome, suspend-dome and beam string structure are applied widely. At present, the spatial structure is tending to lighter weight and longer span. In order to meet this demand, the low weight and high strength building materials and the high efficacy of structure forms are proposed.Against this background, it is significant to make an in-depth research on the cable supported structure system and put forward new-style and effective cable supported structures.In the paper, cable supported structure is mentioned firstly, and based on this structure, a new-style cable supported structure-cable supported concrete floor structure is put forward. In order to obtain the variations of the structure’s displacement, and the changes of beam’s stress and bending moment, the strut’s stress, and the cable’s internal force in the process of construction, the cable supported concrete floor structure is analyzed by Midas Gen under the method of killing or activating elements; and then, the displacement and the changes of mechanical properties of experimental model are supervised. Theoretical analysis and tests indicate that when the structure is stretched and disassembled reasonably, the displacement of structure and the internal force of beam, rut and cables can vary smoothly. The maximum upward deflection of structure is 63 mm, downward deflection is 55 mm, the maximum pressure of beam is 21 000 kN(21 MPa), trut is 85 MPa, cable is 2 644 kN, and all components are within the elastic range of materials;the larger force and the prone to dangerous parts are pointed out in; finally some problems appeared in the test are summarized, which provides a powerful reference for the development of the follow-up system.All the above shows that under reasonable structure design and control of construction, the cable supported concrete floor structure has a good applicability. |
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