A frame-type replaceable anti-buckling shock-absorbing energy-consuming device and using method

Abstract

A frame-type replaceable anti-buckling shock-absorbing energy-consuming device, which relates to the technical field of assembled bridge anti-seismic and anti-shock isolation devices and high-performance quick-repair building materials for anti-seismic disaster reduction, including upper energy-dissipating steel bar joints, mechanical connectors, and energy-dissipating steel rods , a frame-type limit connection mechanism, a connecting nut, and a lower energy-dissipating steel bar joint; a method for using a frame-type replaceable buckling-proof shock-absorbing energy-dissipating device: including the steps of installing before the earthquake and replacing after the earthquake. The invention can not only improve the energy consumption capacity of segmentally assembled bridge piers, but also solve the problem that the built-in energy-dissipating steel bars are not easy to repair after earthquakes, realize the rapid repair of damaged bridge piers after earthquakes, and prevent energy consumption through the frame-type anti-buckling connection The buckling of steel rods under compression can further solve the problem that the replaceable energy-dissipating steel rods are prone to buckling under earthquakes and cannot fully exert their own seismic performance, and improve the seismic performance of segmental assembled bridge piers.

Description

technical field [0001] The invention relates to the technical field of a prefabricated bridge anti-seismic and anti-shock isolation device and high-performance rapid repair building materials for anti-seismic disaster reduction, in particular to a frame-type replaceable anti-buckling anti-buckling anti-shock and energy consumption device and its use method. Background technique [0002] Prefabricated bridge structures have gradually emerged in bridge construction due to their reliable component quality and convenient construction methods. Prefabricated assembled bridge piers, as the main structural form of the substructure of prefabricated bridges, are widely used in urban viaducts and sea-crossing bridges. Prefabricated assembled bridge piers are divided into integral and segmental forms. Among them, segmental prefabricated assembled bridge piers have dry joints between segments and are assembled by post-tensioning unbonded prestressed tendons. Poured bridge piers and segme...

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problems existing in the prior art, the present invention provides a frame-type replaceable anti-buckling shock-absorbing energy-dissipating device, and discloses its use method. The device can not only improve the energy-dissipating capacity of segmentally assembled piers, but It can solve the problem that the built-in energy-dissipating steel bars are not easy to repair after the earthquake, and realize the rapid repair of the damaged pier's post-earthquake function. The frame-type anti-buckling connection can prevent the energy-dissipating steel bars from buckling under compression, and then solve the problem of replaceable energy-consuming steel bars. Under the action of earthquakes, it is easy to be buckled by compression and cannot fully exert its own seismic performance, so as to improve the seismic performance of segmental assembled bridge piers

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