Hexagonal shock absorbers for arch bridges

Abstract

The invention discloses a hexagonal damping device for an arch bridge. The hexagonal damping device for the arch bridge includes an arch bridge body, a bridge abutment, concrete damping baffle blocksand damping assemblies, wherein the concrete damping baffle blocks are arranged on the bridge abutment and are used for obliquely supporting the arch bridge body, and the damping assemblies are fixedinside insertion holes in the concrete damping baffle blocks; each damping assembly includes an orthohexagonal outer sleeve hoop, an orthohexagonal middle sleeve hoop, a damping device and a support roller, wherein the damping device is arranged between the orthohexagonal outer sleeve hoop and the orthohexagonal middle sleeve hoop in a supporting mode, and the support roller is rotatably fixed tothe inner wall of the middle sleeve hoop; inner core rods are fixed to arch sprinings of the arch bridge body, wherein the inner core rods can be inserted into the insertion holes in the concrete damping baffle blocks, and the sections of the inner core rods are orthohexagonal; the inner core rods are slidably matched with the support rollers. By the adoption of the hexagonal damping device for the arch bridge, the damping performance of the arch bridge can be effectively improved, and meanwhile, the stability of the arch bridge is ensured; the hexagonal damping device for the arch bridge is simple in damping mechanism structure and convenient to mount, and the service life of the arch bridge is long.

Description

technical field [0001] The invention relates to the field of bridges, in particular to a hexagonal damping device for arch bridges. Background technique [0002] The arch bridge refers to the bridge with the arch as the main load-bearing member of the structure in the vertical plane. The arch bridge is an upwardly convex curved surface. The maximum principal stress acts along the surface of the arch bridge. The minimum principal stress along the vertical direction of the arch bridge is Heng, and the arch bridge One of the basic systems of bridges. It has a long history and beautiful appearance. Famous bridges at home and abroad are spread all over the world. It occupies an important position in bridge construction. It is suitable for crossing roads or railway bridges, especially for crossing rivers. Because of its beautiful shape, it is also commonly used Bridge constructions in cities and scenic spots; while the arch feet and abutments of existing large arch bridges are gen...

AI Technical Summary

Problems solved by technology

[0002] The arch bridge refers to the bridge with the arch as the main load-bearing member of the structure in the vertical plane. The arch bridge is an upwardly convex curved surface. The maximum principal stress acts along the surface of the arch bridge. The minimum principal stress along the vertical direction of the arch bridge is Heng, and the arch bridge One of the basic systems of bridges. It has a long history and beautiful appearance. Famous bridges at home and abroad are spread all over the world. It occupies an important position in bridge construction. It is suitable for crossing roads or railway bridges, especially for crossing rivers. Because of its beautiful shape, it is also commonly used Bridge constructions in cities and scenic spots; while the arch feet and abutments of existing large arch bridges are generally fixedly connected, and this rigidly connected structure is not conducive to earthquake resistance. For earthquake resistance, the existing technology usually uses The shock absorbing and damping device is installed on the arch bridge, but the existing shock absorbing and damping device cannot take into account the overall stability of the arch bridge and the high efficiency of shock absorbing and damping after installation, which makes the seismic performance of the arch bridge poor, which is not conducive to improving the service life of the arch bridge

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