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A platform for research: civil engineering, architecture and urbanism
Noise and vibration reduction type bridge expansion device
The invention discloses a noise reduction and vibration attenuation type bridge expansion device which comprises a movable comb plate, a noise reduction and vibration attenuation mechanism is arranged below the movable comb plate, the noise reduction and vibration attenuation mechanism comprises an arch-shaped elastic steel plate and a supporting box body, and the arch-shaped top of the arch-shaped elastic steel plate is fixedly connected with the movable comb plate; a first through hole and a second through hole which are formed in the axial direction of the arch are formed in the two sides of the arch bottom respectively, two pairs of penetrating holes corresponding to the first through hole and the second through hole are formed in the bottom of the side wall of the supporting box body, and the arch elastic steel plate and the supporting box body are fixedly connected through a first bolt and a second bolt, so that the upper portion of the supporting box body abuts against the lower portion of the movable comb plate. And the arched elastic steel plate is kept to have pre-pressure on the lower part of the movable comb plate. The arch-shaped elastic steel plate can be pre-pressed in the supporting box body, the arch-shaped elastic steel plate is kept to have certain pre-pressure on the lower portion of the movable comb plate, when a vehicle is loaded on the movable comb plate, vibration of the arch-shaped elastic steel plate is caused, the pre-pressure of the elastic steel plate gives an anti-vibration force to the comb plate, and therefore the effect of reducing noise and vibration is achieved.
本发明公开了一种降噪减振型桥梁伸缩装置，包括活动梳齿板，活动梳齿板下方设有降噪减振机构，其包括拱形弹性钢板和支撑箱体，拱形弹性钢板的拱形顶部与活动梳齿板固定连接，其拱形底部的两侧分别设有沿拱形轴向设置的第一和第二通孔，支撑箱体侧壁底部设有与第一通孔和第二通孔对应的两对穿孔，第一和第二螺栓实现拱形弹性钢板和支撑箱体的固定连接，使支撑箱体上部与活动梳齿板下部抵接，且保持拱形弹性钢板对活动梳齿板下部具有预压力。本发明能使拱形弹性钢板被预压在支撑箱体内，保持其对活动梳齿板下部具有一定的预压力，车辆荷载在活动梳齿板时，引起拱形弹性钢板的振动，弹性钢板的预压力给予梳齿板一个反振力，从而达到降噪减振的效果。
Noise and vibration reduction type bridge expansion device
The invention discloses a noise reduction and vibration attenuation type bridge expansion device which comprises a movable comb plate, a noise reduction and vibration attenuation mechanism is arranged below the movable comb plate, the noise reduction and vibration attenuation mechanism comprises an arch-shaped elastic steel plate and a supporting box body, and the arch-shaped top of the arch-shaped elastic steel plate is fixedly connected with the movable comb plate; a first through hole and a second through hole which are formed in the axial direction of the arch are formed in the two sides of the arch bottom respectively, two pairs of penetrating holes corresponding to the first through hole and the second through hole are formed in the bottom of the side wall of the supporting box body, and the arch elastic steel plate and the supporting box body are fixedly connected through a first bolt and a second bolt, so that the upper portion of the supporting box body abuts against the lower portion of the movable comb plate. And the arched elastic steel plate is kept to have pre-pressure on the lower part of the movable comb plate. The arch-shaped elastic steel plate can be pre-pressed in the supporting box body, the arch-shaped elastic steel plate is kept to have certain pre-pressure on the lower portion of the movable comb plate, when a vehicle is loaded on the movable comb plate, vibration of the arch-shaped elastic steel plate is caused, the pre-pressure of the elastic steel plate gives an anti-vibration force to the comb plate, and therefore the effect of reducing noise and vibration is achieved.
本发明公开了一种降噪减振型桥梁伸缩装置，包括活动梳齿板，活动梳齿板下方设有降噪减振机构，其包括拱形弹性钢板和支撑箱体，拱形弹性钢板的拱形顶部与活动梳齿板固定连接，其拱形底部的两侧分别设有沿拱形轴向设置的第一和第二通孔，支撑箱体侧壁底部设有与第一通孔和第二通孔对应的两对穿孔，第一和第二螺栓实现拱形弹性钢板和支撑箱体的固定连接，使支撑箱体上部与活动梳齿板下部抵接，且保持拱形弹性钢板对活动梳齿板下部具有预压力。本发明能使拱形弹性钢板被预压在支撑箱体内，保持其对活动梳齿板下部具有一定的预压力，车辆荷载在活动梳齿板时，引起拱形弹性钢板的振动，弹性钢板的预压力给予梳齿板一个反振力，从而达到降噪减振的效果。
Noise and vibration reduction type bridge expansion device
一种降噪减振型桥梁伸缩装置
CHEN ZHIGUANG (author) / WANG YU (author) / LI MING (author) / JIANG WEI (author) / YUAN XUBING (author) / WEN BO (author) / CHEN XIUHUI (author) / YANG JIANFENG (author) / YAO LU (author) / LEI JIULUN (author)
2023-06-06
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
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