A bridge pier-cap beam structure and construction method to improve the lateral seismic performance of beam bridges
A technology of anti-seismic performance and construction method, which is applied to bridges, bridge parts, bridge construction, etc., can solve the problems that there are no clear regulations on the design and structure of concrete transverse anti-seismic blocks, so as to improve the transverse anti-seismic performance and reduce excessive earthquakes load, reducing the effect of lateral seismic response
Inactive Publication Date: 2016-06-29
FUZHOU UNIV
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Problems solved by technology
[0003] However, the existing bridge seismic codes at home and abroad have no clear regulations on the design and structure of concrete transverse seismic blocks, and only use them as a structural measure
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[0019] In order to make the above-mentioned features and advantages of the present invention more comprehensible, the following specific embodiments are described in detail with reference to the accompanying drawings.
[0020] refer to figure 1 , the present invention relates to a bridge pier-cover girder structure for improving the lateral seismic performance of a girder bridge, comprising a bridge pier cover beam 2, a viscous damper 4 is arranged inside the bridge pier cover beam 2, and the viscous damper cylinder 5 Fixed on the upper part of the span of the cover beam, the two ends of the viscous damper 4 have rods 6 connected to the pier 7, and the pier 7 is covered with flexible filling material 3 in the part of the expansion hole in the cover beam, so that the viscous damper 4 It can move freely under the action of earthquake load.
[0021] In this embodiment, the viscous damper 4 utilizes the relative frictional motion between the components in the viscous damper and t...
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The invention relates to a pier and bent cap structure capable of improving the lateral seismic performance of a beam bridge. The pier and bent cap structure comprises a bridge bent cap. A viscous damper is arranged in the bridge bent cap. One end of the viscous damper is connected with a pier, and the other end of the viscous damper is fixed to the interior of the bent cap. The hole enlarged part, in the bent cap, of the pier is wrapped in filling materials, the pier generates certain displacement under the earthquake action, and therefore earthquake energy can be consumed through relative movement of the viscous damper. The invention further relates to a construction method of the bent cap structure capable of improving the lateral seismic performance of the beam bridge. The pier and bent cap structure capable of improving the lateral seismic performance of the beam bridge has the advantages of being simple in structure and convenient to construct.
Description
technical field [0001] The invention relates to a bridge pier-cover beam structure and a construction method for improving the lateral seismic performance of a beam bridge, belonging to the field of bridges. Background technique [0002] my country's earthquake disaster area has reached more than half of my country's land area, especially in recent years, earthquake activities have been quite frequent, which has brought huge economic losses to human beings. Some extraordinarily large earthquakes have brought immeasurable economic losses to human society . Compared with the longitudinal bridge direction, the seismic performance of girder bridges in the transverse direction is relatively weak. At present, the main measure to improve the transverse seismic performance of girder bridges is to set anti-seismic blocks outside the cover girders to prevent the main girder from being too large laterally under seismic loads. Displacement or the phenomenon of lateral drop beams. [00...
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IPC IPC(8): E01D19/00E01D19/02E01D21/00
CPCE01D19/00E01D19/02E01D21/00
Inventor 黄福云付毳陈宝春王胜智
Owner FUZHOU UNIV