Product Summary
Functions as a bridge collapse prevention structure
cylinder type viscous damper
Power damper with bridge collapse prevention function is a new cylinder that integrates the function of a vibration damping device and bridge collapse prevention structure by applying universal clevis (U-CLV) to the cylinder type viscous damper "Power Damper". It is a type viscous damper.
By integrating the viscous damper and bridge collapse prevention structure, the reinforcement structure around the fulcrum is simplified, contributing to reliable maintenance and management of the fulcrum.
Product Features
01
Realizing the integration of damper and bridge collapse prevention structure
By applying a universal clevis (U-CLV) that has a two-axis rotation function, it is possible to follow displacement in unexpected directions (including vertical direction) during an earthquake, making it possible to integrate the damper and bridge collapse prevention structure. did.
02
Contributes to reliable maintenance and management around the bearing part
Previously, at fulcrums where vibration damping devices and bridge collapse prevention structures were required, each device was installed separately around the fulcrum, but by integrating these devices, the reinforcement structure around the fulcrum is simplified. This contributes to reliable maintenance and management of the area around the fulcrum.
Product Specifications
01
Equipped with a universal clevis (U-CLV) with 2-axis rotation function
The universal clevis (U-CLV) has a main shaft pin and a sub-shaft pin built into the trunnion member orthogonally, and has a structure that has rotation tracking performance of ±90 degrees around the main shaft pin and ±15 degrees around the sub-shaft pin. is.
02
Resistance member as bridge collapse prevention structure
Horizontal force as part of the bridge collapse prevention structure is resisted by bridge collapse prevention members (PC steel bars) added outside the damper. In some cases, there are structures in which the damper body provides direct resistance at the end of its stroke without adding any bridge collapse prevention members. In a structure in which bridge collapse prevention members are added outside the damper, it is possible to freely combine the damping force of the damper and the resistance force of the bridge collapse prevention structure.
Performance Test
Through performance tests using actual equipment, we have confirmed that the structure has the load-bearing performance required to prevent bridge collapse.
Product Specifications
Specification Table (kN)
| Power damper standard lineup | PWD100 | PWD200 | PWD300 | PWD400 | PWD500 | PWD750 | PWD1000 | PWD1500 | PWD2000 | ||
|---|---|---|---|---|---|---|---|---|---|---|---|
| U-CLV standard lineup | U-CLV100 | U-CLV200 | U-CLV300 | U-CLV400 | U-CLV500 | U-CLV750 | U-CLV1000 | U-CLV1500 | U-CLV2000 | ||
| Damper Specification | damper resistance | F | 100 | 200 | 300 | 400 | 500 | 750 | 1000 | 1500 | 2000 |
| U-CLV proof strength | P 1 | 130 | 260 | 390 | 520 | 650 | 975 | 1300 | 1950 | 2600 | |
| Bridge collapse prevention structural standards | Damper body strength | F×1.3 | 130 | 260 | 390 | 520 | 650 | 975 | 1300 | 1950 | 2600 |
| U-CLV proof strength | P 2 | 250 | 400 | 600 | 850 | 1000 | 1500 | 2100 | 3000 | 4000 | |
Dimension Table (mm)
| U-CLV100 | U-CLV200 | U-CLV300 | U-CLV400 | U-CLV500 | U-CLV750 | U-CLV1000 | U-CLV1500 | U-CLV2000 | ||
| base plate width | B | 200 | 250 | 300 | 340 | 370 | 460 | 520 | 700 | 900 |
| Base plate length | L | 290 | 360 | 440 | 520 | 570 | 690 | 770 | 930 | 1020 |
| base plate thickness | t | 26 | 31 | 43 | 48 | 52 | 63 | 73 | 93 | 98 |
| JIS set bolt arrangement | b1 | 140 | 180 | 90 | 100 | 110 | 115 | 130 | 140 | 150 |
| b2 | 140 | 180 | 70 | 80 | 90 | 115 | 130 | 140 | 150 | |
| l | 230 | 290 | 360 | 420 | 470 | 575 | 640 | 790 | 870 | |
| set bolt | 4-M22 | 4-M27 | 8-M24 | 8-M27 | 8-M30 | 8-M39 | 8-M42 | 10-M45 | 12-M48 | |
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