Bridge piers and construction methods of highway bridges near mountains and highway bridges near mountains

Abstract

The invention discloses a bridge pier for a mountainous highway bridge, a construction method and the mountainous highway bridge. The bridge pier comprises a pier body and a prestressed cover beam. The prestressed cover beam is arranged at the top of the pier body and the end, away from the mountain, of the cover beam is suspended. A first prestressed anchor cable anchored with a mountain body topress the cover beam is embedded in the cover beam, and a second prestressed anchor cable anchored with the mountain body for tensioning the pier body is embedded in the pier body. The construction method comprises pier body construction and prestressed cover beam mounting. The bridge comprises a first beam body, a second beam body, cylindrical pier systems and piers. The first beam body is closeto the mountain body. Each cylindrical pier system comprises a cylindrical pier support beam system and a cylindrical pier cover beam. The first beam body is arranged on prestressed cover beams. The second beam body is arranged on the cylindrical pier cover beams. The first beam body is higher than the second beam body. The first beam body and the second beam body are partially overlapped up and down. The bridge pier, the construction method and the mountainous highway bridge aim to reduce the laying number of the pier body and the height of the pier body in the terrain environment, and the original landform is used as a bridge support surface as much as possible, so that the damage to the original landform is reduced.

Description

technical field [0001] The invention relates to the field of bridge construction, in particular to a bridge pier for a mountainside expressway bridge, a construction method and a mountainside expressway bridge. Background technique [0002] When the expressway passes through the mountainous area with steep surface, in order to reduce the damage to the surface, the structural form of the bridge next to the mountain is often used for crossing. Such as figure 1 with figure 2 As shown, the main structure is the first beam body 5, the second beam body 6, the cylindrical pier system 7 (including the cylindrical pier support beam system 71 and the cylindrical pier cover beam 72), the first beam body 5, and the second beam body 6 respectively Set on the corresponding cylindrical pier cap beam 72 . The projected area under the existing separated bridge is equal to the sum of the projected areas of the framed bridge deck ( figure 2 In the schematic dimension B1), two sets of cyl...

AI Technical Summary

Problems solved by technology

An increase in the height of the pier will inevitably lead to an increase in cost and an increase in construction safety risks

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