Study on applications and developments of an axial seismic damper of which a frictional damping force increases in proportion to an increase in displacement
| Project/Area Number |
23560582
|
|---|
| Research Category |
Grant-in-Aid for Scientific Research (C)
|
| Allocation Type | Multi-year Fund |
|---|
| Section | 一般 |
|---|
| Research Field |
Structural engineering/Earthquake engineering/Maintenance management engineering
|
|---|
| Research Institution | Sojo University |
|---|
Principal Investigator |
|
|---|
| Project Period (FY) |
2011 – 2013
|
| Project Status |
Completed (Fiscal Year 2013)
|
| Budget Amount *help |
¥5,460,000 (Direct Cost: ¥4,200,000、Indirect Cost: ¥1,260,000)
Fiscal Year 2013: ¥520,000 (Direct Cost: ¥400,000、Indirect Cost: ¥120,000)
Fiscal Year 2012: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
Fiscal Year 2011: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
|
|---|
| Keywords | 制震 / ダンパー / 摩擦力 / 変位 / 比例 / 長周期地震動 / ばね / 摩擦 |
|---|
| Research Abstract |
In this study, two proposed seismic dampers of which the damping forces increased in proportion to an increase in displaecement were made on an experimental basis. The first damper with the maximum damping force of 100kN and the amplitude of 40mm has two concave-convex rubbing mechanisms and two rings. By a loading test with the number of reciprocations of 200 times and the period of reciprocation of 6s, it was founded that the experimental hysteresis loops of the first damper were in approximate agreement with a theoretical hysteresis loop. The second damper with the maximum damping force of 1kN and the amplitude of 30mm has four concave-convex rubbing mechanisms and a hoop wire system of Ti-Ni super elastic alloy. By a loading test with the number of reciprocations of 150 cycles and the period of reciprocation of 4s, it was founded that the experimental hysteresis loops of the second damper were in approximate agreement with a theoretical hysteresis loop.
|
Report
(4 results)
Research Products
(19 results)
