| 英文摘要 |
In this paper, a non-destructive method for securing wall-supported cabinets against earthquakes is studied, It is found that to glue the cabinet to the wall with similar geometry to fillet welding, in vertical runs on each side of the component and as centered as possible with respect to its center of mass, can reduce the overturning disposition of the cabinet during earthquakes. With this arrangement, the component needs no further restraint at the base. Two series of tests were performed to characterize the performance of the silicone gluing in this study: testing parameters included two types of silicone (common commercial hardware product B&Q and structural product DC-795) and two types of surface finishes (wood veneer and paint-coated steel sheets), while the supporting wall has a normal interior concrete finish. First, static push tests were performed to determine the force-displacement curve of silicone gluing in two principal loading directions. The joint capacity was found to be directly proportional to the installation lengths of the silicone runs, which strengths of 8N/cm and 3N/cm for in-plane (interface mainly in direct shear) and out-of-plane (interface mainly under tensile stresses) cabinet loading directions, respectively; i.e., the out-of-plane loading governed the seismic resistance. Second, the dynamic shake table test was performed to verify the seismic capacity of the silicon-glued cabinet. It showed that the silicone gluing could prevent a cabinet with a 100kg-mass content from overturning under multi-directional excitations compatible with the response spectra prescribed by the ACI 56 non-structural components testing criteria issued by the International Code Council Evaluation Service (ICC-ES), and the intensity of the inputs complied with the seismic requirements of the Taiwanese Building Code. |
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