| 摘要 |
PROBLEM TO BE SOLVED: To solve the problem in which conventional earthquake proof shake stopping facilities using die steel materials as constitution materials are manufactured at high cost and the problem in which earthquake proof shake stopping facilities consisting of suspension materials of fully threaded shafts with versatility and brace materials of fully-threaded shafts as another method cannot secure sufficient earthquake proof performance because constitution materials on a side receiving compressive stress are fully-threaded shafts and deficient in buckling-resisting performance.SOLUTION: The present invention relates to earthquake-proof shake stopping facilities consisting of suspension materials composed of angle steel, grooved steel, etc., which are easy to procure, and brace materials of fully-threaded shafts, the earthquake-proof shake stopping facilities being supplied which receive compressive stress by the suspension materials when suspended equipment receives horizontal stress in a case of an earthquake, and thereby use the angle steel, grooved steel, etc., having good buckling resisting performance as the suspension materials to have good performance even when the suspended equipment has a large suspension margin.SELECTED DRAWING: Figure 1 |
