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A platform for research: civil engineering, architecture and urbanism
Anti-seismic bridge support and construction method
The anti-seismic bridge support comprises a base body, the base body is connected with a ground pile foundation through hexagon bolts, a sleeve is fixedly installed at the upper end of the base body, a sliding supporting column is embedded in the inner side of the sleeve, and a rubber cushion block is fixedly installed at the upper end of the sliding supporting column; and the rubber cushion block is connected with the bridge bracket through a foundation bolt. According to the anti-seismic bridge support, when strong wind blows across a bridge or the bridge is subjected to overlarge outer side pressure, the bridge shakes left and right, and at the moment, the upper end of the inclined face of a rubber cushion block pulls a connected sliding rod, so that a first damping spring is stretched; and sliding rods connected with the lower ends of the inclined surfaces of the corresponding rubber cushion blocks extrude first damping springs on the inner sides of the pulsating type dampers, so that the pulsating type dampers on the front side and the rear side are matched with each other, fluid energy is absorbed and released by changing the volumes in barrels of the pulsating type dampers, pulsation is reduced, and the damping effect is improved. And the Karman vortex street effect caused by overlarge vibration amplitude of the bridge floor is avoided.
本发明公开了一种抗震桥梁支座，包括底座本体，所述底座本体通过六角螺栓与地面桩基相连接，且底座本体上端固定安装有套筒，所述套筒内侧嵌套有滑动支柱，且滑动支柱上端固定安装有橡胶垫块；橡胶垫块，所述橡胶垫块通过地脚螺栓与桥梁支架相连接。该抗震桥梁支座当大风吹过桥梁或者受外侧压力过大时，桥梁出现左右晃动，此时橡胶垫块倾斜面上端会拉动连接的滑动杆，使第一减震弹簧进行拉伸，而与之相对应的橡胶垫块倾斜面下端连接的滑动杆会挤压脉动式阻尼器内侧的第一减震弹簧，从而通过前后两侧脉动式阻尼器的相互配合，通过改变脉动式阻尼器筒体内的容积来吸收和释放流体能量，从而减少脉动，避免桥面振动幅度过大产生卡门涡街效应。
Anti-seismic bridge support and construction method
The anti-seismic bridge support comprises a base body, the base body is connected with a ground pile foundation through hexagon bolts, a sleeve is fixedly installed at the upper end of the base body, a sliding supporting column is embedded in the inner side of the sleeve, and a rubber cushion block is fixedly installed at the upper end of the sliding supporting column; and the rubber cushion block is connected with the bridge bracket through a foundation bolt. According to the anti-seismic bridge support, when strong wind blows across a bridge or the bridge is subjected to overlarge outer side pressure, the bridge shakes left and right, and at the moment, the upper end of the inclined face of a rubber cushion block pulls a connected sliding rod, so that a first damping spring is stretched; and sliding rods connected with the lower ends of the inclined surfaces of the corresponding rubber cushion blocks extrude first damping springs on the inner sides of the pulsating type dampers, so that the pulsating type dampers on the front side and the rear side are matched with each other, fluid energy is absorbed and released by changing the volumes in barrels of the pulsating type dampers, pulsation is reduced, and the damping effect is improved. And the Karman vortex street effect caused by overlarge vibration amplitude of the bridge floor is avoided.
本发明公开了一种抗震桥梁支座，包括底座本体，所述底座本体通过六角螺栓与地面桩基相连接，且底座本体上端固定安装有套筒，所述套筒内侧嵌套有滑动支柱，且滑动支柱上端固定安装有橡胶垫块；橡胶垫块，所述橡胶垫块通过地脚螺栓与桥梁支架相连接。该抗震桥梁支座当大风吹过桥梁或者受外侧压力过大时，桥梁出现左右晃动，此时橡胶垫块倾斜面上端会拉动连接的滑动杆，使第一减震弹簧进行拉伸，而与之相对应的橡胶垫块倾斜面下端连接的滑动杆会挤压脉动式阻尼器内侧的第一减震弹簧，从而通过前后两侧脉动式阻尼器的相互配合，通过改变脉动式阻尼器筒体内的容积来吸收和释放流体能量，从而减少脉动，避免桥面振动幅度过大产生卡门涡街效应。
Anti-seismic bridge support and construction method
一种抗震桥梁支座及施工方法
GAO SONG (author) / LIU SHIYU (author) / CAI LI (author) / LI XIN (author) / LIU YAN (author) / CHEN WEI (author) / SHI BINBIN (author) / ZHANG YIJUN (author) / CHEN YUXUAN (author) / LUO SHA (author)
2024-08-16
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
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