Anti-seismic abutment structure along bridge
A technology for anti-seismic bridges and along the direction of the bridge, which is applied in the direction of bridges, bridge parts, bridge construction, etc., can solve the problems of large-area damage and collision damage of the connected subgrade parts, and achieve the effects of convenient construction, improved seismic capacity, and simple structure
Active Publication Date: 2014-07-09
SHANGHAI URBAN CONSTR DESIGN RES INST GRP CO LTD
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Problems solved by technology
[0005] Therefore, those skilled in the art are committed to developing a kind of anti-seismic abutment structure along the bridge direction to overcome the earthquake damage along the bridge direction, and further overcome the collision damage between the bridge superstructure and the abutment, the inclination of the abutment, and the fall along the bridge direction. Defects such as large-area damage to beams and connected roadbed parts
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[0018] like figure 1 , figure 2 As shown, a specific embodiment of the anti-seismic abutment structure along the bridge direction of the present invention includes an abutment 1, a bearing pad 5 and a bridge superstructure 4, and the bearing pad 5 is arranged between the pier 1 and the bridge superstructure 4 .
[0019] Among them, the abutment structure also includes the rear abutment 3, which is arranged on the upper side of the abutment 1, and the bridge superstructure 4 is provided with a flange 7 corresponding to the position of the abutment 3; the abutment 1 and the abutment A pre-destruction boss 2 is arranged between the plates 3 .
[0020] Specifically, the pre-destroying boss 2 and the abutment 1 can be integrally constructed, and a groove that cooperates with the pre-breaking boss 2 is provided on the back plate 3 of the abutment.
[0021] like image 3 As shown, an expansion joint 6 is arranged between the bridge superstructure 4 and the backboard 3 . The dis...
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The invention discloses an anti-seismic abutment structure along a bridge. The structure comprises a pier, a support cushion block and a bridge superstructure; and the support cushion block is arranged between the pier and the bridge superstructure. The abutment structure further comprises a back abutment approach slab arranged at the upper side of the pier; the bridge superstructure is provided with a flange corresponding to the back abutment approach slab; a pre-destroyed boss is arranged between the pier and the back abutment approach slab; a groove matched with the pre-destroyed boss is arranged in the back abutment approach slab; and a contraction joint is arranged between the bridge superstructure and the back abutment approach slab. The anti-seismic abutment structure along the bridge, disclosed by the invention, improves the seismic capability of the bridge in a direction along the bridge. Meanwhile, the anti-seismic abutment structure along the bridge also has the characteristics of simple structure and convenience for construction.
Description
technical field [0001] The invention relates to the field of bridge anti-seismic technology, in particular to an anti-seismic abutment structure along the direction of the bridge. Background technique [0002] When the abutment structure is damaged by collision, if the abutment tilts, it will increase the span of the bridge and may cause beam drop damage, resulting in interruption of road traffic; Destruction will also bring great difficulties to road traffic and post-earthquake repair and reconstruction. [0003] In an earthquake, besides the vertical earthquake, the bridge is also subjected to horizontal earthquakes in the direction of the bridge and the direction of the bridge (the direction of the bridge refers to the direction of the central axis of the bridge, and the direction of the bridge refers to the direction perpendicular to the central axis of the bridge. ) component of the role. Under the action of the along-bridge and transverse-bridge components, there are...
Claims
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IPC IPC(8): E01D19/02
Inventor 郭卓明马韩江沙丽新俞露蔡亮蒋小路周成汪瑞唐祖宁
Owner SHANGHAI URBAN CONSTR DESIGN RES INST GRP CO LTD