Dynamic Performance Investigation Of Point Supported Glass Flexible Support System

As the flexible support system is used in point supported glass curtain wall and becomes more and more popular, it is necessary to investigate the loading performance of the flexible support system. The investigation is focused on the winds load performance of the system, since wind load is the main load of the support system. This paper emphasized the wind vibration response performance investigation and did some research on the earth quake response of the system considering the concentrative qualities of glasses. This paper also investigated the influence of concentrative qualities, pre-stressed tensile force of the cable and height-breadth ratio of the system on the self-vibration performance and wind vibration response performance. The contents are as follows: 1. The FEA models of the flexible support system were built, and the attribute of the element of the support system was analyzed. Based on the large deflection theory the FEA models of two kinds of support system were built and the factors that determine the loading capacity and the global stiffness of the flexible support systems, such as the initial pre-stressing of the tension cable, the height breadth ratio and the height of the flexible systems, were illustrated. 2. Self-vibration investigation of the system was studied. This paper investigated the self-vibration performance of the flexible support system with the FEA calculation software ANSYS and compared these two kinds of systems to illustrate their similarity and difference. The influences of the factors mentioned above were studied in detail. 3. Based on the studies of self vibration of the flexible system the studies of its wind vibration response were emphasized in this paper. Firstly the pulse wind load was determined and time process curve simulation of the pulse wind load was done by AR method. The transient analysis and spectrum analysis of the system were done by ANSYS with the time process curve and its spectrum density curve. 4. Earthquake response is part of the dynamic performance of the support system. This paper studied the systems earth quake response by inputting the earthquake wave into ANSYS according to the standard waves, and the influence of the earthquake on the support system is studied.