CN111254818B

CN111254818B - Whole reinforcing apparatus of bridge with shock-absorbing support

Info

Publication number: CN111254818B
Application number: CN202010069600.9A
Authority: CN
Inventors: 杨博竣; 李岩辉; 王洪志; 张立衡; 王天
Original assignee: Nanyang Institute of Technology
Current assignee: Nanyang Institute of Technology
Priority date: 2020-01-21
Filing date: 2020-01-21
Publication date: 2021-07-23
Anticipated expiration: 2040-01-21
Also published as: CN111254818A

Abstract

The invention discloses a bridge integral reinforcing device with a shock absorption support, which relates to the technical field of bridge shock absorption supports and comprises bridge pier columns, supports and a cross beam, wherein a semi-arch support column I is fixedly connected between the outer side surface of each support and the bottom surface of the cross beam, fixed seats are fixedly arranged at the centers of the inner top surface and the inner bottom surface of each support, each fixed seat is provided with a spherical sliding groove, steel balls are arranged in the spherical sliding grooves, a support column I is fixedly connected between the steel balls, a support column II is fixedly arranged in each support, a semi-arch support column II is fixedly connected between each support column I and each support column II, and each support column I and each support column II are respectively nested with an octahedral column I and an octahedral column II. Further reducing the damage of the bridge structure to the maximum extent and improving the service life effect of the bridge.

Description

Whole reinforcing apparatus of bridge with shock-absorbing support

Technical Field

The invention relates to the technical field of bridge damping supports, in particular to an integral bridge reinforcing device with a damping support.

Background

Bridge refers to a building constructed for a road crossing natural or artificial obstacles, in which bridge supports are important structural members connecting an upper structure and a lower structure of the bridge, and which can reliably transmit the reaction force and deformation (displacement and rotation angle) of the upper structure of the bridge to the lower structure of the bridge, thereby conforming the actual stress condition of the structure to a theoretical figure calculated, and which function to fix the upper structure to an abutment, bear various forces acting on the upper structure, and reliably transmit it to the abutment, and under the action of load, temperature, concrete contraction and creep, the supports can adapt to the rotation angle and displacement of the upper structure, so that the upper structure can be freely deformed without generating additional internal force.

However, the existing bridge support has a single structure and an unsatisfactory damping effect, can not absorb and resolve impact force from the outside from multiple directions, and converts a certain load into supporting force, thereby reducing the damage of the bridge structure to the maximum extent and prolonging the service life of the bridge structure.

Disclosure of Invention

The invention aims to overcome the defects that the existing bridge support has a single structure and an unsatisfactory damping effect, and can not absorb and resolve impact force (such as overload, earthquake and the like) from the outside from multiple directions, and convert certain load into supporting force, further reduce the damage of the bridge structure to the maximum extent and prolong the service life of the bridge structure.

In order to solve the technical problems, the invention provides an integral bridge reinforcing device with a damping support, which comprises bridge pillars, a support and a cross beam, wherein the bridge pillars are connected with the cross beam through the support;

the equal fixed mounting of center department of top surface and interior bottom surface has a fixing base, two in the support the opposite face of fixing base all is provided with the ball-type spout, be provided with the steel ball in the ball-type spout, fixedly connected with support column I between the steel ball, equal fixed mounting has support column II between four angles that support top surface and bottom surface correspond, support column I with half bow-shaped support column II of fixedly connected with between two sides of support, support column I with the same horizontal position of support column II is nested octahedral post I and octahedral post II respectively, octahedral post I with be connected with spring I and billet between octahedral post II's the corresponding face, octahedral post I with be connected with between the position that four medial surfaces of support correspond spring I with the billet.

Preferably, the support columns I and each support column II are vertically and symmetrically nested with two octahedral columns I and two octahedral columns II.

Preferably, two of the semi-arch support columns I and the support constitute an upper arch support column, two of the semi-arch support columns II and the support column I constitute a lower arch support column, and the connecting position of the semi-arch support column I with the support corresponds to the connecting position of the semi-arch support column II with the support.

Preferably, support column I with support column II is inside crisscross to be provided with multilayer rubber slab and multilayer shock attenuation steel sheet, support column II both ends are provided with upper junction plate and lower connecting plate respectively, upper junction plate with lower connecting plate respectively with the top surface and the bottom surface of support are fixed.

Preferably, the reinforcing apparatus up end with terminal surface fixed mounting has connecting block I under the crossbeam, fixedly connected with between the connecting block I the steel cable rope, half bow-shaped support column I's both ends all through connecting block II respectively with the side of support with the bottom surface fixed connection of crossbeam.

Preferably, one end of the semi-arch support column II, which is far away from the support column I, is fixedly connected with the inner side surface of the support through a spring II and a connecting block III, the inner side surface of the octahedral column II, which corresponds to the support, is fixed on the inner side surface of the support through the spring II and the connecting block III.

Advantageous effects

The invention achieves the effects that the integral bridge reinforcing device with the shock absorption support can absorb and resolve impact force (such as overload, earthquake and the like) from the outside from multiple directions, and can convert certain load into supporting force, thereby reducing the damage of the bridge structure to the maximum extent and prolonging the service life of the bridge.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic front view of an integral bridge reinforcing device with a shock-absorbing support according to the present invention;

FIG. 2 is an internal side view of a support of the integral bridge girder reinforcing apparatus having a shock-absorbing support according to the present invention;

FIG. 3 is a schematic top view of the connection between a support pillar I and a support pillar II of the integral bridge girder reinforcing device with a shock absorption support according to the present invention;

fig. 4 is a schematic internal structure view of a support pillar II of the bridge integral reinforcement device with a shock-absorbing support according to the present invention.

Detailed Description

The invention will be further described with reference to the following figures and examples.

Example 1

An integral bridge reinforcing device with a shock absorption support is disclosed, as shown in fig. 1-4, and comprises a bridge pier 100, a support 101 and a cross beam 102, wherein the bridge pier 100 is connected with the cross beam 102 through the support 101, the lower end of the bridge pier 100 is provided with a reinforcing device 108, a steel cable 106 is fixedly connected between the reinforcing device 108 and the cross beam 102, the upper end of the support 101 and the bottom surface of the cross beam 102 as well as the lower end of the support 101 and the upper end of the bridge pier 100 are fixedly connected through flanges 103, and a semi-arch support column I107 is fixedly connected between the outer side surface of the support 101 and the bottom surface of the cross beam 102;

equal fixed mounting of top surface and interior bottom surface's center department has fixing base 110 in the support 101, two the opposite face of fixing base 110 all is provided with ball-type spout 111, be provided with steel ball 112 in the ball-type spout 111, fixedly connected with support column I109 between the steel ball 112, equal fixed mounting has support column II 114 between four angles that support 101 top surface and bottom surface correspond, support column I109 with half bow-shaped support column II 120 of fixedly connected with between two sides of support 101, support column I109 with the same horizontal position of support column II 114 is nested respectively octahedral post I113 and octahedral post II 115, octahedral post I113 with be connected with spring I117 and billet 116 between the corresponding face of octahedral post II 115, octahedral post I113 with be connected with between the position that four medial surfaces of support 101 correspond spring I117 with billet 116.

The support column I109 and each support column II 114 are vertically and symmetrically nested with two octahedral columns I113 and two octahedral columns II 115.

The two semi-arc-shaped supporting columns I107 and the support 101 form an upper arc-shaped supporting column, the two semi-arc-shaped supporting columns II 120 and the supporting column I109 form a lower arc-shaped supporting column, and the connecting position of the semi-arc-shaped supporting column I107 and the support 101 corresponds to the connecting position of the semi-arc-shaped supporting column II 120 and the support 101.

The supporting column I109 and the supporting column II 114 are internally provided with a plurality of layers of rubber plates 121 and a plurality of layers of damping steel plates 122 in a staggered manner, two ends of the supporting column II 114 are respectively provided with an upper connecting plate 123 and a lower connecting plate 124, and the upper connecting plate 123 and the lower connecting plate 124 are respectively fixed with the top surface and the bottom surface of the support 101.

The upper end face of the reinforcing device 108 and the lower end face of the cross beam 102 are fixedly provided with connecting blocks I105, the steel cables 106 are fixedly connected between the connecting blocks I105, and two ends of the semi-arch support column I107 are respectively and fixedly connected with the side face of the support 101 and the bottom face of the cross beam 102 through connecting blocks II 104.

One end of the semi-arch support column II 120, which is far away from the support column I109, is fixedly connected with the inner side surface of the support 101 through a spring II119 and a connecting block III 118, the inner side surface of the octahedral column II 115, which corresponds to the support 101, is fixed on the inner side surface of the support 101 through the spring II119 and the connecting block III 118, and the connecting block III 118 is fixed on the inner side surface of the support 101.

The working principle is as follows: in the using process of the device, when an earthquake or external impact force is met, in the horizontal direction, the cross beam 102 and the pier column 100 can be subjected to impact forces from different directions, the support column 102 between the cross beam 102 and the pier column can play a certain role in absorbing and buffering the external impact force at the moment, specifically, the spring II119 can play a primary buffer between the support seat 101 and the support column II 114 to absorb and buffer a part of external force, and then the spring I117 and the steel bar 116 between the support column I109 and the support column II 114, and the spring I117 and the steel bar 116 between the support column I109 and the support seat 101 can further absorb and buffer the buffered external force, and simultaneously, because the primary buffer and the secondary buffer are uniformly distributed in absorption and absorption, and the octahedral columns I113 and II 115 are uniformly distributed in an up-down symmetrical mode, the situation that the external impact force in a certain horizontal direction cannot be effectively absorbed and decomposed can be avoided, further, the support 101 is damaged by certain impact, so that the stability of the whole structure is affected, and finally the beam 102 and the pier column 100 are prevented from being rigidly damaged by the connection transition effect of the support 101;

when the bridge deck meets overlarge overload bearing force, the multiple layers of rubber plates 121 and the multiple layers of damping steel plates 122 are arranged inside the supporting columns I109 and II 114, and can play a certain role in buffering and supporting the pressure in the vertical direction, meanwhile, the lower arched supporting column composed of the semi-arched supporting column II 120 and the supporting column I109 can transfer the pressure in the vertical direction to the horizontal direction along the lower arched supporting column, the connecting spring II119 between the semi-arched supporting column II 120 and the side surface of the support 101 can absorb a part of external force in the horizontal direction at the moment, further, the force in the horizontal direction can be transferred to the upper arched supporting column composed of the semi-arched supporting column I107 and the support (101), at the moment, the upper arched supporting column can convert the force in the horizontal direction into the force in the vertical direction, the force in the vertical direction is upward, and as the two end parts of the upper arched supporting column are fixedly connected with the cross beam 102, the beam 102 is supported upwards to a certain extent, the whole process not only absorbs the pressure from the vertical direction, but also converts and utilizes the external force, the whole device is well protected, the damage is reduced, and the service life is prolonged;

further, when the support 101 needs to be repaired, maintained or replaced, a plurality of jacks can be uniformly distributed on the pier column 100, namely around the support 101, to replace the support function of the support, the flange plate 103 can be loosened, the whole support 101 can be taken out, and the support can be repaired, maintained or replaced, and then the support can be installed in situ.

While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall within the scope of the invention.

It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.

Claims

1. The integral bridge reinforcing device with the shock absorption support comprises a bridge pier column (100), a support (101) and a cross beam (102), wherein the bridge pier column (100) is connected with the cross beam (102) through the support (101), and is characterized in that the lower end of the bridge pier column (100) is provided with a reinforcing device (108), a steel cable (106) is fixedly connected between the reinforcing device (108) and the cross beam (102), the upper end of the support (101), the bottom surface of the cross beam (102), the lower end of the support (101) and the upper end of the bridge pier column (100) are fixedly connected through flanges (103), and a semi-arch support column I (107) is fixedly connected between the outer side surface of the support (101) and the bottom surface of the cross beam (102);

equal fixed mounting of top surface and interior bottom surface's center department has fixing base (110), two in support (101) the opposite face of fixing base (110) all is provided with ball-type spout (111), be provided with steel ball (112) in ball-type spout (111), fixedly connected with support column I (109) between steel ball (112), equal fixed mounting has support column II (114) between four angles that support (101) top surface and bottom surface correspond, support column I (109) with half bow-shaped support column II (120) of fixedly connected with between two sides of support (101), support column I (109) nestification has octahedral post I (113), support column II (114) nestification has octahedral post II (115), octahedral post I (113) with octahedral post II (115) are located same horizontal position, octahedral post I (113) with be connected with spring I (117) and billet between the corresponding face of octahedral post II (115) and (116) the spring I (117) and the steel bar (116) are connected between the octahedral column I (113) and the corresponding positions of the four inner side surfaces of the support (101);

an upper arched support column is formed by the two semi-arched support columns I (107) and the support (101), a lower arched support column is formed by the two semi-arched support columns II (120) and the support column I (109), and the connecting position of the semi-arched support columns I (107) and the support (101) corresponds to the connecting position of the semi-arched support columns II (120) and the support (101).

2. The integral bridge reinforcing device with the shock absorption support base is characterized in that two octahedral columns I (113) are symmetrically nested in the supporting column I (109) from top to bottom, and two octahedral columns II (115) are symmetrically nested in each supporting column II (114) from top to bottom.

3. The integral bridge reinforcing device with the shock absorption support saddle according to claim 1, wherein a plurality of layers of rubber plates (121) and a plurality of layers of shock absorption steel plates (122) are staggered inside the supporting column I (109) and the supporting column II (114), an upper connecting plate (123) and a lower connecting plate (124) are respectively arranged at two ends of the supporting column II (114), and the upper connecting plate (123) and the lower connecting plate (124) are respectively fixed with the top surface and the bottom surface of the support saddle (101).

4. The integral bridge reinforcing device with the shock absorption support saddle according to claim 1, wherein the upper end face of the reinforcing device (108) and the lower end face of the cross beam (102) are fixedly provided with connecting blocks I (105), the steel cable (106) is fixedly connected between the connecting blocks I (105), and both ends of the semi-arch supporting column I (107) are respectively and fixedly connected with the side face of the support saddle (101) and the bottom face of the cross beam (102) through the connecting blocks II (104).

5. The integral bridge reinforcing device with the shock absorption support saddle according to claim 1, wherein one end of the semi-arch support pillar II (120) far away from the support pillar I (109) is fixedly connected with the inner side surface of the support saddle (101) through a spring II (119) and a connecting block III (118), the inner side surface of the octahedral pillar II (115) corresponding to the support saddle (101) is fixed with the inner side surface of the support saddle (101) through the spring II (119) and the connecting block III (118), and the connecting block III (118) is fixed with the inner side surface of the support saddle (101).