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METHOD FOR IDENTIFYING VIBRATION OF SLAB, VIBRATION SUPPRESSING DEVICE, METHOD FOR ARRANGING VIBRATION SUPPRESSING DEVICE, CONSTRUCTION FLOOR STRUCTURE AND VIBRATION MEASURING APPARATUS
METHOD FOR IDENTIFYING VIBRATION OF SLAB, VIBRATION SUPPRESSING DEVICE, METHOD FOR ARRANGING VIBRATION SUPPRESSING DEVICE, CONSTRUCTION FLOOR STRUCTURE AND VIBRATION MEASURING APPARATUS
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机译:平板振动的识别方法,振动抑制装置,振动抑制装置的布置方法,建筑地板结构及振动测量装置
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摘要
PROBLEM TO BE SOLVED: To realize a method for identifying a vibration of a slab, capable of shortening a time taken for identifying a vibration mode of the slab, and to realize a vibration suppressing device, a method for arranging the vibration suppressing device, a construction floor structure and a vibration measuring apparatus.;SOLUTION: First, acceleration sensors are installed on measurement positions P1-P4 set on a floor slab 16, and a vibration is applied by hammering the vicinity of each acceleration sensor by using an impact hammer 80. An acceleration detected by the acceleration sensor is displayed as a vibration spectrum by a vibration mode instrument 60. Next, the vibration mode is identified from the obtained vibration spectrum. In the case of measuring the slab of 6 m ×10 m, a conventional method using a random vibrating machine takes about 4-5 hours for the measurement at a mesh of 500 mm, since measuring operations are carried out at 273 (=13×21) points, whereas this method only takes about 30-40 minutes, since the vibration mode is measured by using four measurement positions. Therefore, the time for identifying the vibration mode can be shortened by using this method.;COPYRIGHT: (C)2009,JPO&INPIT
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