Variable stiffness bracing device
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United States of America Patent
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Sep 20, 2016
Grant Date -
Dec 17, 2015
app pub date -
Jun 16, 2015
filing date -
Jun 16, 2014
priority date (Note) -
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Abstract
The present invention relates to a variable stiffness bracing device comprising: a rectangular frame (100) having a solid quarter cylinder (101) at each angle of the rectangular frame (100); a pair of leaf spring (200) attached at each end of the rectangular frame (100) at the solid quarter cylinder (101); a steel rail (300) fixed on top middle of the rectangular frame (100); a core (400) fixed at the tip of each leaf spring (200), the core (400) is slidable along the steel rail (300); a cubic core (500) located in the middle of the core (400); and a rod cable (600) passes through each end of the rectangular frame (100) and the core (400) and ended at the cubic core (500) located in the middle of the core (400). The above provision is advantageous as the present invention deploys wholly mechanical in retrofitting and rehabilitation of structures.
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