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CN-224213161-U - Post-earthquake reinforcing device for railway reinforced concrete bridge pier

CN224213161UCN 224213161 UCN224213161 UCN 224213161UCN-224213161-U

Abstract

The application provides a post-earthquake reinforcement device for a railway reinforced concrete pier, which is used for reinforcing the reinforced concrete pier and comprises a plurality of groups of anchoring parts, wherein the anchoring parts are arranged at intervals along the height direction of the reinforced concrete pier, each group of anchoring parts is provided with a plurality of circumferentially arranged ring-shaped reinforced concrete piers, each anchoring part is connected with the reinforced concrete pier in an anchoring way, a reinforcement cage body is sleeved on the peripheral side of the reinforced concrete pier and is provided with an interval with the anchoring parts, and the reinforcement cage body is used for pouring concrete blocks so that the reinforcement cage body, the reinforced concrete piers and the anchoring parts after the concrete blocks are poured form a whole. The post-earthquake reinforcing device for the railway reinforced concrete bridge pier reduces secondary damage of the embedded ribs to the damaged part of the original structure, and is convenient to install and maintain and high in applicability.

Inventors

  • CHEN HAORUI
  • Dou Junpeng
  • LI QINGCHI
  • HU SUOTING
  • SHI LONG
  • CHEN SHENGLI
  • GUO HUI
  • SU YONGHUA
  • XU JIANCHAO
  • SUN MINGDE
  • ZHAO JIANYE

Assignees

  • 中国铁道科学研究院集团有限公司铁道建筑研究所
  • 中国铁道科学研究院集团有限公司
  • 中国国家铁路集团有限公司

Dates

Publication Date
20260508
Application Date
20250522

Claims (10)

  1. 1. Post-earthquake reinforcing device for a railway reinforced concrete pier, which is used for reinforcing the reinforced concrete pier (100), and comprises: The anchor pieces (200) are arranged at intervals along the height direction of the reinforced concrete bridge pier (100), each anchor piece (200) is provided with a plurality of anchor pieces arranged circumferentially around the reinforced concrete bridge pier (100), and each anchor piece (200) is connected with the reinforced concrete bridge pier (100) in an anchoring manner; the reinforced cage body is sleeved on the outer peripheral side of the reinforced concrete pier (100) and is provided with a space with the anchoring piece (200), and is used for pouring a concrete block (400), so that the reinforced cage body, the reinforced concrete pier (100) and the anchoring piece (200) after the concrete block (400) is poured form a whole.
  2. 2. The post-earthquake strengthening device of railway reinforced concrete piers according to claim 1, characterized in that at least part of the anchor (200) is embedded in the reinforced concrete piers (100); Or the end part of the anchoring piece (200) is welded and connected with the exposed steel bars of the reinforced concrete bridge pier (100).
  3. 3. The post-earthquake strengthening device of a railway reinforced concrete pier according to claim 2, wherein the anchor member (200) comprises an embedded portion (201) for being embedded in the reinforced concrete pier (100) and an exposed portion (202) for exposing the reinforced concrete pier (100), a spiral strengthening rib is provided on a surface of the embedded portion (201), and a screw cap is provided on a top of the exposed portion (202).
  4. 4. A post-earthquake strengthening device for railway reinforced concrete piers according to claim 3, characterized in that said anchor (200) is a prefabricated peg.
  5. 5. A post-earthquake strengthening device for a railway reinforced concrete pier according to claim 3, wherein the length of said embedded portion (201) is not less than the distance from the outer peripheral side surface of said reinforced concrete pier (100) to said strengthening cage, and the length of said exposed portion (202) is not less than one third of the thickness of said concrete block (400).
  6. 6. The post-earthquake strengthening device for the reinforced concrete bridge pier according to claim 1, wherein the strengthening cage body comprises a transverse steel bar set and a longitudinal steel bar set, the transverse steel bar set comprises a plurality of stirrups (300) which are arranged at intervals along the height direction of the reinforced concrete bridge pier (100), the longitudinal steel bar set comprises a plurality of reinforcing ribs (301) which are arranged at intervals along the circumferential direction of the reinforced concrete bridge pier (100), and each reinforcing rib (301) is commonly connected with a plurality of the stirrups (300).
  7. 7. The post-earthquake strengthening device for railway reinforced concrete piers according to claim 6, wherein the reinforcing ribs (301) are connected with the stirrups (300) in a binding manner.
  8. 8. The post-earthquake strengthening device of railway reinforced concrete piers according to claim 1, wherein the concrete blocks (400) are marked higher than the concrete material used for the reinforced concrete piers (100).
  9. 9. The post-earthquake strengthening device for railway reinforced concrete piers according to claim 1, characterized in that the distance between the strengthening cage and the outer surface of the concrete block (400) after casting is 3-5cm.
  10. 10. A railway reinforced concrete pier post-earthquake strengthening device according to claim 3, characterized in that the pitch of the embedded part (201) is 1m-3mm.

Description

Post-earthquake reinforcing device for railway reinforced concrete bridge pier Technical Field The application relates to a pier reinforcement technology, in particular to a railway reinforced concrete pier post-earthquake reinforcement device. Background In long-term use of the bridge, the bridge is influenced by sudden events such as heavy traffic, natural disasters and the like, so that the service life of the bridge can be greatly shortened, and the bridge is required to be maintained, reinforced and reformed. Because of the large design load, high structural stress and high deformation performance requirements of the railway bridge, the railway bridge is generally reinforced by adopting modes of concrete coating, carbon fiber cloth, steel plates and the like. The method has good reinforcement effect on the highway bridge pier with smaller section, but the section of the railway reinforced concrete bridge pier is large, the steel plate needs to be manufactured again by the steel plate for outer wrapping, the original structure needs to be processed in a large scale by the traditional method for outer wrapping the concrete, the time consumption is long, and the effect of quick restoration after earthquake cannot be achieved. Disclosure of Invention The application provides a post-earthquake reinforcing device for a railway reinforced concrete pier, which is used for solving the technical problems of lower reinforcing and repairing efficiency and higher cost of the railway pier in the related technology. The application provides a post-earthquake reinforcing device for a railway reinforced concrete pier, which is used for reinforcing the reinforced concrete pier and comprises the following components: The anchor parts are arranged at intervals along the height direction of the reinforced concrete bridge pier, each anchor part is provided with a plurality of anchor parts which are circumferentially arranged around the reinforced concrete bridge pier, and each anchor part is connected with the reinforced concrete bridge pier in an anchoring manner; The reinforced cage body is sleeved on the periphery side of the reinforced concrete pier and is provided with a space with the anchoring piece, and the reinforced cage body is used for pouring concrete blocks so that the reinforced cage body, the reinforced concrete pier and the anchoring piece after the concrete blocks are poured form a whole. In some possible embodiments, at least part of the anchor is embedded in the reinforced concrete pier; or the end part of the anchoring piece is welded and connected with the exposed steel bar of the reinforced concrete pier. In some possible embodiments, the anchor comprises an embedded part for being embedded in the reinforced concrete pier and an exposed part for exposing the reinforced concrete pier, wherein the surface of the embedded part is provided with a spiral reinforcing rib, and the top of the exposed part is provided with a screw cap. In some possible embodiments, the anchor is a preformed peg. In some possible embodiments, the length of the embedded portion is not less than the distance from the outer circumferential side surface of the reinforced concrete pier to the reinforcement cage, and the length of the exposed portion is not less than one third of the thickness of the concrete block. In some possible embodiments, the reinforcement cage includes a transverse reinforcement set and a longitudinal reinforcement set, the transverse reinforcement set includes a plurality of stirrups arranged at intervals along a height direction of the reinforced concrete bridge pier, and the longitudinal reinforcement set includes a plurality of reinforcing ribs arranged at intervals along a circumferential direction of the reinforced concrete bridge pier, and each reinforcing rib is connected with a plurality of the stirrups together. In some possible embodiments, the reinforcing bars are connected with the stirrups in a binding manner. In some possible embodiments, the concrete blocks are numbered higher than the concrete material used for the reinforced concrete pier. In some possible embodiments, the distance between the reinforcement cage and the outer surface of the concrete block after casting is 3-5cm. In some possible embodiments, the pitch of the insert is 1m-3mm. (1) According to the post-earthquake reinforcing device for the railway reinforced concrete bridge pier, the anchoring piece, the reinforcing cage body and the concrete blocks are utilized to reinforce the reinforced concrete bridge pier, and compared with high-strength materials such as steel plates and carbon fiber cloth, the anchoring piece, the reinforcing cage body and the concrete adopted in the embodiment of the application are low in cost, and have better adaptability to the railway reinforced concrete bridge pier with a larger section on the premise of ensuring the reinforcing strength. (2) According to the post-earthquake reinforcing device fo