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CN-117587697-B - Pier connecting device is assembled to prefabricated festival section of antidetonation

CN117587697BCN 117587697 BCN117587697 BCN 117587697BCN-117587697-B

Abstract

The invention relates to a connecting device for an earthquake-resistant prefabricated segment spliced pier, which is characterized in that an upper prefabricated pier and a lower prefabricated pier are fixedly connected through a connecting seat, a connecting sleeve is fixedly connected to the outer wall of the connecting seat, a connecting ring is arranged above the connecting seat, the connecting ring and the connecting sleeve are respectively sleeved on the upper prefabricated pier and the lower prefabricated pier, a plurality of first rotating seats are fixedly connected to the outer walls of the connecting sleeve and the connecting ring, the same elastic plate is rotationally connected between the upper corresponding first rotating seats and the lower corresponding first rotating seats and used for further fixing the upper prefabricated pier and the lower prefabricated pier so that the upper prefabricated pier and the lower prefabricated pier can be automatically reset when being inclined, a buffer mechanism is arranged on the connecting seat and used for buffering the upper prefabricated pier and increasing the earthquake-resistant effect of the connecting position, and the problems that the connection between the existing prefabricated segment spliced pier segments is rigid connection, if vibration is not carried out, the pier is easy to damage and the earthquake-resistant effect is poor are solved.

Inventors

  • LIU HAIMING
  • LI HAIJIAO
  • WANG LIYUE
  • XIE HAOYU
  • MAO YUXIN
  • YAO ZHILAN
  • YANG JIAN
  • LI YUANCHAO

Assignees

  • 招商局重庆交通科研设计院有限公司
  • 天津城建设计院有限公司

Dates

Publication Date
20260505
Application Date
20231113

Claims (10)

  1. 1. The utility model provides a pier connecting device is assembled to prefabricated festival section of antidetonation, includes a plurality of prefabricated mounds (1), its characterized in that, upper and lower two prefabricated mounds (1) pass through connecting seat (2) fixed connection, rectangular channel (37) have been seted up at the top of prefabricated mound (1), step hole (38) have been seted up to the bottom of prefabricated mound (1), the top of connecting seat (2) is equipped with round pin post (30) corresponding with step hole (38), the bottom fixedly connected with of connecting seat (2) and rectangular block (36) that rectangular channel (37) cooperation was used, the outer wall fixedly connected with adapter sleeve (4) of connecting seat (2), the top of connecting seat (2) is equipped with go-between (6), go-between (6) and adapter sleeve (4) are respectively overlapped and are established on two prefabricated mounds (1) about, the outer wall of adapter sleeve (4) and adapter sleeve (6) all fixedly connected with a plurality of first rotating seats (5), rotate between two corresponding first rotating seats (5) about and be connected with same elastic plate (7), can be used for two pairs of automatic when resetting down, and can be further fixed when it is used for two to be inclined to it to reset; the outer wall of the prefabricated pier (1) is provided with a second threaded hole (40) corresponding to the rectangular groove (37) and a first threaded hole (39) corresponding to the step hole (38), the inner walls of the first threaded hole (39) and the second threaded hole (40) are respectively provided with a first bolt (10) in a threaded manner, and the first bolts (10) respectively extend into the pin (30) and the rectangular block (36) and penetrate through the connecting sleeve (4) so that the connecting sleeve is convenient to assemble and disassemble; the buffer mechanism is arranged on the connecting seat (2) and used for buffering the prefabricated pier (1) above, and the anti-seismic effect of the connecting part is increased.
  2. 2. The connecting device for the pier assembled by the earthquake-resistant prefabricated segment according to claim 1, wherein the buffering mechanism comprises an oil tank (3) fixedly sleeved on the outer wall of the connecting seat (2), a sliding ring (43) is slidably arranged on the inner wall of the oil tank (3), the top and the bottom of the sliding ring (43) are respectively elastically connected with the top inner wall and the bottom inner wall of the oil tank (3) through a first spring (44), a plurality of second rotating seats (8) are fixedly connected to the top of the oil tank (3) and the outer wall of the connecting ring (6), the same oil cylinder (9) is rotationally connected between the upper corresponding second rotating seat (8) and the lower corresponding second rotating seat (8), an oil inlet of the oil cylinder (9) extends to the top inner wall of the oil tank (3) through a pipeline, and an oil outlet end of the oil cylinder (9) extends to the bottom inner wall of the oil tank (3) through a pipeline.
  3. 3. The connecting device for the earthquake-resistant prefabricated segment spliced pier according to claim 2, wherein a plurality of jacks (21) are formed in the top of the connecting seat (2), telescopic rods (25) are inserted into the inner walls of the jacks (21), the outer walls of the telescopic rods (25) are sleeved with one rubber pad (24), the tops of the telescopic rods (25) are provided with one connecting sheet (26), the bottoms of the pin posts (30) are fixedly connected with a fixing seat (29), an outer threaded sleeve (28) is fixedly sleeved on the outer wall of the fixing seat (29), a fixing ring (27) is fixedly connected to the bottom of the outer threaded sleeve (28), the connecting sheet (26) is rotatably connected to the inner wall of the outer threaded sleeve (28), the connecting sheet (26) is positioned between the fixing seat (29) and the fixing ring (27), and the outer threaded sleeve (28) is in a step hole (38).
  4. 4. A prefabricated segment assembly bridge pier connecting device according to claim 3, characterized in that the top of the connecting seat (2) is rotatably connected with a first rotating ring (22), a limiting hole (23) corresponding to the telescopic rod (25) is formed in the top of the first rotating ring (22), and the first rotating ring (22) is located between the connecting seat (2) and the rubber pad (24).
  5. 5. The connecting device for the earthquake-resistant prefabricated segment spliced pier according to claim 3, wherein the telescopic rod (25) further comprises a guide sleeve (251) arranged in the jack (21), the inner wall of the guide sleeve (251) is slidably provided with a guide rod (252), the top of the guide rod (252) is fixedly connected with a universal ball (253), the universal ball (253) is rotationally embedded in the connecting sheet (26), the outer wall of the guide rod (252) is sleeved with a tension spring (254), and two ends of the tension spring (254) are fixedly connected with the top inner wall of the guide sleeve (251) and the outer wall of the guide rod (252) respectively.
  6. 6. The connecting device for the earthquake-resistant prefabricated segment spliced pier according to claim 1, wherein a limiting ring (11) which is in contact with the connecting ring (6) is fixedly sleeved on the outer wall of the prefabricated pier (1), a plurality of inserting blocks (12) are fixedly connected to the bottom of the limiting ring (11), and slots (13) corresponding to the inserting blocks (12) are formed in the top of the connecting ring (6).
  7. 7. A prefabricated segment of antidetonation assembles pier connecting device according to claim 3, characterized in that, the outer wall fixedly connected with of connecting seat (2) two arc (31), the inner wall of arc (31) is equipped with splint (34), fixedly connected with a plurality of second springs (35) between splint (34) and arc (31).
  8. 8. An earthquake-resistant prefabricated segment-spliced pier connection means according to claim 7, characterized in that two of said arcuate plates (31) are fixedly connected by means of nuts (32) and second bolts (33).
  9. 9. The earthquake-resistant prefabricated segment spliced pier connection device according to claim 5, wherein the limiting hole (23) comprises a through hole (41) and a kidney-shaped hole (42), the through hole (41) corresponds to the guide sleeve (251), and the kidney-shaped hole (42) corresponds to the guide rod (252).
  10. 10. An earthquake-resistant prefabricated segment-fitted pier connection according to claim 8, characterized in that the elastic plate (7), the cylinder (9) and the second bolt (33) are offset from each other.

Description

Pier connecting device is assembled to prefabricated festival section of antidetonation Technical Field The invention belongs to the technical field of pier earthquake resistance, and relates to an earthquake-resistant prefabricated segment spliced pier connecting device. Background With the advancement of urban traffic and construction of cross-sea bridges, the demand for rapid construction of bridges in limited sites is gradually increasing. However, the traditional method for constructing the cast-in-place concrete bridge inevitably needs to wait for concrete to coagulate, so that the construction period is long, and the quality of the cast-in-place concrete is affected by the field environment, so that the durability of the cast-in-place concrete bridge in a severe environment is difficult to ensure. The prefabrication and assembly technology is a viable means to solve this contradiction. At present, the prefabrication technology of the bridge upper structure tends to be mature, and the prefabrication and assembly technology of the bridge lower structure, particularly pier stud, is less in application. Examples of projects to which this technology has been applied in China are east sea bridge, hangzhou Bay bridge, etc., all located in low intensity areas. The invention discloses a knob type prefabricated segment splicing pier connecting device with the bulletin number of CN106869014B, which comprises a lower prefabricated segment, a first connecting part, a knob part, a second connecting part and an upper prefabricated segment from bottom to top, wherein the first connecting part is respectively connected with the lower prefabricated segment and the knob part, the second connecting part is respectively connected with the knob part and the upper prefabricated segment, and the first connecting part and the second connecting part are respectively connected with the knob part in an upside-down manner. By adopting the technical scheme of the invention, the invention is suitable for various bridges with rapid construction requirements. The connecting device has the following defects that when the connecting device is used, the two circular rings are buckled, then concrete is poured, although the connecting device can be effectively fixed, the two circular rings and the poured concrete are rigidly connected, if vibration is generated on a bridge, vibration reduction treatment is not performed, a bridge pier is easy to damage, and the vibration reduction effect is poor, so that the connecting device for the bridge pier assembled by the anti-vibration prefabricated sections is provided, and the problem is solved. Disclosure of Invention In view of the above, the invention provides a connecting device for the earthquake-resistant prefabricated segment spliced pier, which aims to solve the problems that the existing connection between the prefabricated segment spliced pier segments is rigid connection, if vibration is not generated in a bridge, the pier is easy to damage and the earthquake-resistant effect is poor. The invention provides a connecting device for an earthquake-resistant prefabricated segment spliced pier, which comprises a plurality of prefabricated piers, wherein an upper prefabricated pier and a lower prefabricated pier are fixedly connected through a connecting seat, a rectangular groove is formed in the top of each prefabricated pier, a step hole is formed in the bottom of each prefabricated pier, a pin column corresponding to the step hole is arranged at the top of each connecting seat, and a rectangular block matched with the rectangular groove is fixedly connected to the bottom of each connecting seat; The connecting sleeve is fixedly connected to the outer wall of the connecting seat, the connecting ring is arranged above the connecting seat, the connecting ring and the connecting sleeve are respectively sleeved on the upper prefabricated pier and the lower prefabricated pier, the outer walls of the connecting sleeve and the connecting ring are fixedly connected with a plurality of first rotating seats, and the same elastic plate is rotationally connected between the upper and lower corresponding two first rotating seats and is used for further fixing the upper and lower prefabricated piers, so that the upper and lower prefabricated piers can be automatically reset when inclined; The outer wall of the prefabricated pier is provided with a second threaded hole corresponding to the rectangular groove and a first threaded hole corresponding to the step hole, the inner walls of the first threaded hole and the second threaded hole are respectively provided with a first bolt in a threaded manner, and the first bolts extend into the pin column and the rectangular block and penetrate through the connecting sleeve respectively, so that the prefabricated pier is convenient to assemble and disassemble; and the buffer mechanism is arranged on the connecting seat and used for buffering the prefabricated