CN-224213116-U - Node connecting device between prefabricated piers of assembled

Abstract

The utility model relates to the technical field of prefabricated piers and discloses a node connecting device between prefabricated piers, which comprises an upper prefabricated pier column and a lower prefabricated pier column, wherein a bearing self-locking module and an energy consumption replaceable module are arranged between the upper prefabricated pier column and the lower prefabricated pier column, the bearing self-locking module comprises a first conical cavity arranged at the bottom of the upper prefabricated pier column and a second conical cavity arranged at the top of the lower prefabricated pier column, a conical bearing column is inserted between the first conical cavity of the upper prefabricated pier column and the second conical cavity of the lower prefabricated pier column, the outer surface of the conical bearing column and the inner surfaces of the first conical cavity and the second conical cavity are arranged to be matched conical matching surfaces, automatic locking can be achieved through axial compression force, main vertical load and bending moment can be borne through the bearing self-locking module, and reciprocating load caused by earthquake or wind vibration can be borne through the energy consumption replaceable module.

Inventors

• GAN HONG
• QIU WEI
• ZHAO YONGCHENG
• XU YANGFU
• WU FEI
• LI YONGGU
• TAN ZHICHENG
• QI TIAN
• XIONG HUA
• ZHANG WEI
• WANG ZHIWU
• ZHANG QING
• He Chaofa
• XIONG MIN
• WEI HAITAO
• CHEN YONG
• XU ZHOU
• Lai Qinhui
• HUANG BAISHENG
• LI GUOQING

Assignees

• 江西赣粤高速公路股份有限公司
• 江西省交通工程集团有限公司

Dates

Publication Date

20260508

Application Date

20250618

Claims (6)

1. 1. The node connecting device between the prefabricated piers comprises an upper prefabricated pier column (1) and a lower prefabricated pier column (2), and is characterized in that a bearing self-locking module (3) and an energy consumption replaceable module (4) are arranged between the upper prefabricated pier column (1) and the lower prefabricated pier column (2); The bearing self-locking module (3) comprises a first conical cavity (301) arranged at the bottom of the upper prefabricated pier stud (1), a second conical cavity (302) arranged at the top of the lower prefabricated pier stud (2) and a conical bearing post (303) inserted between the interiors of the first conical cavity (301) and the second conical cavity (302), wherein the outer surface of the conical bearing post (303) and the inner surfaces of the first conical cavity (301) and the second conical cavity (302) are provided with matched conical matching surfaces (304); The energy consumption replaceable module (4) comprises an upper connecting annular plate (401) fixed at the bottom of the upper prefabricated pier column (1) and a lower connecting annular plate (402) fixed at the top of the lower prefabricated pier column (2), and a metal energy consumer (6) is connected between the upper connecting annular plate (401) and the lower connecting annular plate (402) through a detachable connecting piece (5).
2. 2. The node connection device between prefabricated piers according to claim 1, wherein a grouting channel (3031) is provided inside the tapered bearing column (303), and the grouting channel (3031) is filled with grouting material or epoxy resin.
3. 3. The node connecting device between prefabricated piers according to claim 1, wherein the tapered mating surface (304) includes axial wedge-shaped clamping grooves (3041) formed at two ends of the tapered bearing column (303), and inner walls of the first tapered cavity (301) and the second tapered cavity (302) are respectively provided with axial wedge-shaped clamping blocks (3042) matched with the axial wedge-shaped clamping grooves (3041).
4. 4. The node connection device between prefabricated piers according to claim 1, characterized in that the metal energy dissipater (6) is an X-shaped steel plate dissipater.
5. 5. The node connecting device between prefabricated piers according to claim 1, wherein the detachable connecting piece (5) comprises a long round hole (501) arranged on the surfaces of the upper connecting ring plate (401) and the lower connecting ring plate (402), and the inside of the long round hole (501) of the upper connecting ring plate (401) and the inside of the long round hole (501) of the lower connecting ring plate (402) are detachably connected through a high-strength bolt (502).
6. 6. The node connection device between prefabricated piers according to claim 1, wherein the tapered bearing columns (303) are made of stainless steel composite.

Description

Node connecting device between prefabricated piers of assembled Technical Field The utility model relates to the technical field of prefabricated piers, in particular to a node connecting device between prefabricated piers. Background Along with the continuous progress of technology, the technical requirements on bridge structures are continuously improved, bridges with large spans and high heights gradually appear in the field of view of people, the construction mode is gradually changed from traditional on-site pouring of all components into partial or most of factory prefabrication, and then the bridges are transported to a construction site for installation. Because the pier with too high height is difficult to uniformly prefabricate, the sectional prefabrication is needed, and the problem of the prefabricated pier of assembly type is the connection between the nodes of each component. In the field of assembled bridge construction, the joint connection performance of the prefabricated bridge pier directly determines the overall safety and the earthquake resistance of the structure. The traditional precast pier nodes are connected by grouting sleeves or welding, and have the defects that the grouting sleeves need to be subjected to on-site grouting maintenance, the construction period is long, the welding requirement on the operation precision is high, the nodes are usually of rigid design, brittle failure easily occurs in an earthquake, the nodes cannot be repaired after the damage, pier columns need to be replaced integrally, waste is caused, and the cost is relatively high. Disclosure of utility model In order to solve the defects in the prior art, the utility model provides a node connecting device between prefabricated piers. In order to solve the technical problems, the utility model provides the following technical scheme: The utility model discloses a node connecting device between prefabricated piers, which comprises an upper prefabricated pier column and a lower prefabricated pier column, wherein a bearing self-locking module and an energy consumption replaceable module are arranged between the upper prefabricated pier column and the lower prefabricated pier column, the bearing self-locking module comprises a first conical cavity arranged at the bottom of the upper prefabricated pier column, a second conical cavity arranged at the top of the lower prefabricated pier column, and a conical bearing column inserted between the first conical cavity and the second conical cavity, the outer surface of the conical bearing column and the inner surface of the first conical cavity and the inner surface of the second conical cavity are arranged to be matched conical matching surfaces, the energy consumption replaceable module comprises an upper connecting ring plate fixed at the bottom of the upper prefabricated pier column and a lower connecting ring plate fixed at the top of the lower prefabricated pier column, and a metal energy consumption device is connected between the upper connecting ring plate and the lower connecting ring plate through a detachable connecting piece. As a preferable technical scheme of the utility model, a grouting channel is arranged in the conical bearing column, and grouting material or epoxy resin is filled in the grouting channel. As a preferable technical scheme of the utility model, the conical matching surface comprises axial wedge clamping grooves arranged at two ends of the conical bearing column, and the inner walls of the first conical cavity and the second conical cavity are respectively provided with an axial wedge clamping block matched with the axial wedge clamping grooves. As a preferable technical scheme of the utility model, the metal energy dissipater adopts an X-shaped steel plate energy dissipater. As a preferable technical scheme of the utility model, the detachable connecting piece comprises oblong holes arranged on the surfaces of the upper connecting ring plate and the lower connecting ring plate, and the inner parts of the oblong holes of the upper connecting ring plate and the lower connecting ring plate are detachably connected through high-strength bolts. As a preferable technical scheme of the utility model, the conical bearing column is made of stainless steel composite steel. The beneficial effects of the utility model are as follows: According to the node connecting device between the prefabricated pier, the conical bearing column is inserted between the first conical cavity of the upper prefabricated pier column and the second conical cavity of the lower prefabricated pier column, the outer surface of the conical bearing column and the inner surfaces of the first conical cavity and the second conical cavity are arranged to be matched conical matching surfaces, automatic locking can be achieved through axial pressing force, on-site grouting maintenance is not needed, construction period is shortened, welding is not needed, construction precision i