CN214695225U

CN214695225U - Bent for bridge support

Info

Publication number: CN214695225U
Application number: CN202120017056.3U
Authority: CN
Inventors: 张程锐; 彭学东; 罗欢; 申林; 王俊; 郑修强
Original assignee: Sichuan Communications Construction Group Co Ltd
Current assignee: Sichuan Communications Construction Group Co Ltd
Priority date: 2021-01-05
Filing date: 2021-01-05
Publication date: 2021-11-12
Anticipated expiration: 2031-01-05

Abstract

The utility model discloses a bent for supporting a bridge, which comprises two groups of supporting bent groups which are correspondingly distributed on two sides of a bridge pier stud along the longitudinal direction of the bridge, wherein each supporting bent group comprises a plurality of stand columns which are distributed along the transverse direction of the bridge and a plurality of supporting rod groups which are distributed along the vertical direction of the bridge at intervals and are used for connecting adjacent stand columns; the top of the support bent frame group is provided with a support beam which is fixedly connected with the top ends of a plurality of stand columns of the support bent frame group. The utility model discloses an edge bridge is indulged the bridge and is carried out vertical support to the support bent frame group that distributes in the pier stud both sides to a plurality of stands that will support bent frame group through the bracing piece group are connected and are carried out the level and support, then utilize supporting beam to carry out the load to bridge superstructure and equally divide, enlarged with bridge superstructure's the contact surface that bears, reasonable in design, simple structure, overall structure is stable and factor of safety is high.

Description

Bent for bridge support

Technical Field

The utility model relates to a bridge maintenance consolidates technical field, especially relates to a bent for bridge support.

Background

The bridge generally comprises an upper structure, a lower structure, a support and an auxiliary structure, wherein the upper structure is also called a bridge span structure and is a main structure for spanning obstacles; the lower structure comprises a bridge abutment, a bridge pier and a foundation; the support is a force transmission device arranged at the supporting positions of the bridge span structure and the bridge pier or the bridge abutment. Under the long-term effects of daily use and earthquake, the bridge structure is easy to damage, so that the daily maintenance of the bridge structure is needed.

When the lower structure of the bridge is damaged, for example, the bridge body cracks annularly, the bridge body sinks to cause the sinking of the bridge deck, and the like, the upper structure of the bridge needs to be repaired after being provided with stable support, the support structure can be a permanent support, can be directly taken as a pier stud to be accommodated in a lower structure system of the bridge, can also be a temporary support, and can be dismantled after the lower structure of the bridge is repaired. Because the position restriction of bridge superstructure and the particularity of bridge lower part landform, directly make interim pier stud with concrete or steel-concrete structure and undertake superstructure's weight, the construction degree of difficulty is big and the construction cycle is long, and has the problem of dismantling the difficulty after pouring the concrete in order to satisfy bearing capacity, influences follow-up maintenance.

SUMMERY OF THE UTILITY MODEL

Therefore, in order to solve the above problems, it is necessary to provide a bent frame for supporting a bridge, which has a short construction period and a strong bearing capacity, and can meet the requirement of sufficient bearing capacity, avoid causing safety accidents, and enable traffic to be recovered as soon as possible.

The utility model discloses a following technical scheme realizes:

a bent for supporting a bridge comprises two groups of supporting bent groups which are correspondingly distributed on two sides of bridge piers along the longitudinal direction of the bridge, wherein each supporting bent group comprises a plurality of stand columns which are distributed along the transverse direction of the bridge and a plurality of supporting rod groups which are distributed along the vertical direction of the bridge at intervals and are used for connecting adjacent stand columns; the top of the support bent frame group is provided with a support beam which is fixedly connected with the top ends of a plurality of stand columns of the support bent frame group.

In one embodiment, the supporting rod group is composed of a plurality of inter-column supporting rods, the inter-column supporting rods are horizontally arranged between adjacent columns of the same group of supporting bent frame groups to form cross braces, the inter-column supporting rods are horizontally arranged between corresponding columns of different groups of supporting bent frame groups to form longitudinal braces, and the cross braces and the longitudinal braces are both located at the same horizontal height.

In one embodiment, inclined struts are obliquely arranged between the adjacent longitudinal struts, and the inclined struts are support rods between columns.

In one embodiment, the upper part of the support bent frame group is connected with a triangular support, the triangular support is formed by connecting three support rods between columns end to end and is provided with three connecting points, one connecting point is fixedly connected with the support cross beam, and the other two connecting points are respectively connected to the side walls of two adjacent columns.

In one embodiment, the inter-column support rod is formed by oppositely and parallelly arranging openings of two channel steels and fixedly connecting the two channel steels through a plurality of first ribbed plates, and the first ribbed plates are distributed at intervals along the length direction of the channel steels; the outer sides of the two support legs of the channel steel are respectively fixedly connected with first batten plates corresponding to the arrangement positions of the first rib plates, and the two channel steel are fixedly connected through the first batten plates.

In one embodiment, the end of the support rod between the columns is fixedly connected with a mounting plate for extending the contact area of the connection.

In one embodiment, the bottom end and the top end of the upright post are respectively provided with a first flange plate and a second flange plate, and the upright post is connected with the pile foundation flange through the first flange plate; the stand passes through the second ring flange and is connected with the supporting beam.

In one embodiment, the upright post comprises a lower section, an upper section and a plurality of middle sections, and the sections are fixedly connected with one another; the lifting lugs of the lower section and the middle section are arranged internally, and the lifting lugs of the upper section are arranged externally.

In one embodiment, the supporting cross beam is formed by arranging a plurality of I-shaped steels in parallel and fixedly connecting adjacent I-shaped steels through a plurality of second rib plates, and the second rib plates are distributed at intervals along the length direction of the I-shaped steels; and the positions, corresponding to the second rib plates, of the outer sides of the two legs of the I-shaped steel are respectively and fixedly connected with a second batten plate, and the I-shaped steel is fixedly connected through the second batten plates.

In one embodiment, a plurality of stiffening plates are correspondingly connected between the supporting legs of the i-shaped steel on two sides of the supporting beam corresponding to the second batten plates, and the stiffening plates are distributed at intervals along the length direction of the i-shaped steel.

Compared with the prior art, the technical scheme of the utility model following advantage and beneficial effect have at least:

the utility model discloses an edge bridge is indulged the bridge and is carried out vertical support to the support bent frame group that distributes in the pier stud both sides to the bridge superstructure, and will support a plurality of stands of bent frame group through the bracing piece group and connect and carry out the level and support, and utilize supporting beam to carry out the load to bridge superstructure and equally divide, and enlarged with bridge superstructure's the contact surface that bears, reasonable in design, simple structure, overall structure is stable and factor of safety is high.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a diagram illustrating a use state of a bent frame for supporting a bridge in a longitudinal direction of the bridge according to an embodiment of the present invention;

fig. 2 is a diagram illustrating a usage status of a support bent group according to an embodiment of the present invention;

fig. 3 is a schematic structural view of an intercolumnar support rod according to an embodiment of the present invention;

FIG. 4 is a cross-sectional view taken at A-A of FIG. 3;

fig. 5 is a schematic structural view of a supporting beam according to an embodiment of the present invention;

fig. 6 is a cross-sectional view at B-B in fig. 5.

Icon: 1/1 '-support bent frame group, 11/11' -upright post, 111-first flange plate, 112-second flange plate, 12-support rod group, 1201-channel steel, 1202-first ribbed plate, 1203-first batten plate, 121-cross brace, 122-longitudinal brace, 123-diagonal brace, 13-support cross beam, 131-I-steel, 132-second ribbed plate, 133-second batten plate, 134-stiffening plate, 14-triangular support, 15-mounting plate, 2-bridge pier and 3-pile foundation.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, a bent for supporting a bridge will be described more clearly and completely with reference to the accompanying drawings in the embodiments of the present invention. The preferred embodiments of the bridge supporting bent are shown in the drawings, but the bridge supporting bent can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the present invention belongs. The terms "central," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," and the like, when used in reference to a particular orientation or positional relationship, are used for convenience in describing the invention and to simplify the description, but are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be construed as limiting the invention.

In the description of the present invention, it should be further noted that the terms "disposed," "mounted," "connected," and "connected" used herein should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1 and fig. 2, an embodiment of the present invention provides a bent for supporting a bridge, including two sets of supporting bent groups 1/1 'correspondingly distributed on two sides of a bridge pier 2 along a longitudinal direction of the bridge, the supporting bent group 1/1' includes a plurality of columns 11/11 'distributed along a transverse direction of the bridge, and a plurality of supporting rod groups 12 distributed along a vertical direction of the bridge at intervals for connecting adjacent columns 11/11'; the top end of the support bent frame group 1/1' is provided with a support beam 13, and the support beam 13 is fixedly connected with the top ends of a plurality of upright posts of the support bent frame group. Carry out vertical support to bridge superstructure through supporting bent group 1/1 ' to connecting through the bracing piece group 12 with a plurality of stands that support bent group 1/1 ' and carry out horizontal support, and utilize supporting beam 13 to carry out the load equipartition to bridge superstructure, and enlarged the bearing contact surface with bridge superstructure, improved overall structure's stability and factor of safety.

Specifically, the upright 11/11' can be assembled by steel pipes in sections, and comprises a lower section, an upper section and a plurality of middle sections, wherein the sections are fixedly connected by welding; in order to ensure the structural appearance integrity, lifting lugs can be arranged on the inner sides of the lower section and the middle section, the lifting lugs are vertically placed in a hoisting mode, and then adjacent sections are welded and fixed after being butted; the lifting eyes of the upper section are arranged outside the upper section, since the existing bridge structure existing at the top interferes with the installation position. The stand column formed by assembling the steel pipes in sections has stable structural strength, is convenient to construct and maintain, and is easy to popularize and use.

Further, as shown in fig. 1 and 2, the supporting rod group 12 is composed of a plurality of inter-column supporting rods, the inter-column supporting rods are horizontally arranged between adjacent columns of the same group of supporting bent groups (e.g. adjacent column 11 of supporting bent group 1) to form a cross brace 121, and the inter-column supporting rods are horizontally arranged between corresponding columns of different groups of supporting bent groups (e.g. corresponding columns 11 and 11 ' of supporting bent groups 1 and 1 ') to form a longitudinal brace 122, so that the two supporting bent groups 1 and 1 ' and the columns in each group mutually act to jointly bear load; and the wale 121 and the wale 122 are both located at the same level so as to effectively and reasonably transmit the load. Furthermore, when there is a gradient difference between the two support bent frame groups 1 and 1', a diagonal brace 123 is obliquely arranged between the adjacent longitudinal braces 122 to improve the structural stability, and the diagonal brace 123 is also an intercolumnar brace. It can be understood that the inter-column support rods used as the wales 121, the wales 122 or the diagonal braces 123 are basically consistent in structure, are different only in length, width or end portions, are different only in end portions, are also different only in end portion shape changes for adapting to connection angles, can be manufactured in batches reasonably by simply changing design data, are stable in structural strength, are convenient to construct and maintain, and are easy to popularize and use.

Further, as shown in fig. 2, the upper portion of the support bent group 1 is connected with a triangular support 14, the triangular support 14 is formed by connecting three support rods between columns end to end, and three connection points are formed, one of the connection points is fixedly connected with the support beam 13, and the other two connection points are respectively connected to the side walls of two adjacent columns 11. The supporting beam 13 can be supported in a midspan mode through a triangular support 14. It will be appreciated that the triangular supports 14 are located primarily between adjacent columns of the same set of support bent (e.g. between adjacent columns 11 of the set of support bent 1, or between adjacent columns 11 'of the set of support bent 1') and span the support beams 13 of the set of support bent. Specifically, the three inter-column support rods forming the triangular support 14 are isosceles triangles, the point of contact of the two inter-column support rods forming the waist is located in the middle of the support beam 13, and the inter-column support rods forming the bottom are horizontally arranged between the adjacent upright columns 11, so as to achieve the purposes of reasonable support and uniform load transmission.

Further, as shown in fig. 3 and 4, the inter-column support rod is formed by oppositely arranging two channel steel 1201 in parallel through openings and fixedly connecting the two channel steel 1201 through a plurality of first rib plates 1202 in a welding manner, so as to improve the support strength of the inter-column support rod, wherein the first rib plates 1202 are distributed at intervals along the length direction of the channel steel 1201, preferably at equal intervals, so as to tightly connect the two channel steel 1201 and uniformly bear force; the outer sides of the two supporting legs of the channel steel 1201 correspond to the arrangement positions of the first rib plates 1202 and are respectively and fixedly connected with first batten plates 1203, the two channel steels 1201 can be fixedly connected through the first batten plates 1203 in a welding mode, and the connection stability between the two channel steels 1201 is further enhanced.

Further, as shown in fig. 1 and 2, two ends of the inter-column support rod are respectively fixedly connected with other members through the mounting plate 15, for example, the mounting plate 15 is fixedly connected with the upright post 11, the supporting beam 13 and other inter-column support rods through welding, so as to prolong the connection contact area and further enhance the connection stability of the structure.

Further, as shown in fig. 1 and 2, a first flange 111 and a second flange 112 are respectively arranged at the bottom end and the top end of the upright post 11, and the upright post 11 is flange-connected with the pile foundation 3 through the first flange 111; the upright post 11 is connected with the supporting beam 13 through the second flange 112, so that the two ends of the upright post 11 are connected tightly and stably, and the secondary overhaul or replacement can be facilitated.

Further, as shown in fig. 5 and 6, the supporting beam 13 is formed by arranging a plurality of i-beams 131 in parallel and fixedly connecting the adjacent i-beams 131 by a plurality of second rib plates 132 in a welding manner, so as to improve the supporting strength of the supporting beam 13, and the second rib plates 132 are distributed at intervals along the length direction of the i-beams 131, preferably at equal intervals, so as to tightly connect the two i-beams 131 and uniformly bear force; the outer sides of the two legs of the i-shaped steel 131 are respectively and fixedly connected with a second batten plate 133, the second batten plate 133 is arranged corresponding to the position of the second rib plate 132, the i-shaped steels 131 can be connected into a whole together in a welding mode, and the connection stability between the i-shaped steels 131 is further enhanced.

Further, as shown in fig. 5 and 6, a plurality of stiffening plates 134 are respectively connected between the legs of the i-beams 131 on both sides (outermost sides) of the supporting beam 13, and the stiffening plates 134 are disposed corresponding to the second gusset plate 133 to support the second gusset plate 133 and the legs of the i-beams 131 on both sides of the supporting beam 13, so as to further improve the structural strength of the supporting beam 13; the stiffening plates 134 on each side are distributed at intervals along the length direction of the i-beam 131 where the stiffening plates are located, preferably at equal intervals, so that the two sides of the supporting beam 13 and the second gusset plate 133 are uniformly stressed. It can be understood that within the coverage range of the second gusset plate 133, a plurality of stiffening plates 134 may be respectively disposed on two sides of the supporting beam 13 for supporting, and the positions of the stiffening plates 134 on two sides of the supporting beam 13 are also in one-to-one correspondence, so as to play a role in reasonably and effectively supporting.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The bent frame for supporting the bridge is characterized by comprising two groups of supporting bent frame groups which are correspondingly distributed on two sides of bridge piers along the longitudinal direction of the bridge, wherein each supporting bent frame group comprises a plurality of stand columns which are distributed along the transverse direction of the bridge and a plurality of supporting rod groups which are distributed along the vertical direction of the bridge at intervals and are used for connecting the adjacent stand columns; the supporting device is characterized in that a supporting cross beam is installed at the top end of the supporting bent frame group and is fixedly connected with the top ends of a plurality of stand columns of the supporting bent frame group.

2. The bent frame for supporting a bridge according to claim 1, wherein the supporting rod set comprises a plurality of inter-column supporting rods, the inter-column supporting rods are horizontally arranged between adjacent columns of the same supporting bent frame set to form cross braces, the inter-column supporting rods are horizontally arranged between corresponding columns of different supporting bent frame sets to form longitudinal braces, and the cross braces and the longitudinal braces are located at the same horizontal height.

3. The bent frame for supporting a bridge according to claim 2, wherein a diagonal brace is obliquely arranged between the adjacent longitudinal braces, and the diagonal brace is a brace between columns.

4. The bent frame for supporting a bridge according to claim 1, wherein the upper part of the supporting bent frame group is connected with a triangular support, the triangular support is formed by connecting three supporting rods between columns end to end and is provided with three connecting points, one of the connecting points is fixedly connected with the supporting beam, and the other two connecting points are respectively connected to the side walls of two adjacent columns.

5. The bent frame for supporting a bridge according to any one of claims 2 to 4, wherein the support rod between the columns is formed by oppositely arranging openings of two channel steels in parallel and fixedly connecting the two channel steels through a plurality of first rib plates, and the first rib plates are distributed at intervals along the length direction of the channel steels; the outer sides of the two legs of the channel steel correspond to the arrangement positions of the first rib plates and are fixedly connected with first gusset plates respectively, and the channel steel is fixedly connected with the two first gusset plates.

6. The bent frame for supporting a bridge according to claim 5, wherein an installation plate for extending a connection contact area is fixedly connected to an end of the inter-post support rod.

7. The bent frame for supporting a bridge according to any one of claims 1 to 4, wherein a first flange and a second flange are respectively arranged at the bottom end and the top end of each upright post, and the upright posts are connected with pile foundation flanges through the first flanges; the upright post is connected with the supporting beam through the second flange plate.

8. The bent frame for supporting a bridge according to any one of claims 1 to 4, wherein the upright comprises a lower section, an upper section and a plurality of middle sections, and the sections are fixedly connected with each other; the lifting lugs of the lower section and the middle section are arranged internally, and the lifting lugs of the upper section are arranged externally.

9. The bent frame for supporting a bridge according to any one of claims 1 to 4, wherein the supporting cross beam is formed by arranging a plurality of I-shaped steels in parallel and fixedly connecting adjacent I-shaped steels through a plurality of second rib plates, and the second rib plates are distributed at intervals along the length direction of the I-shaped steels; and the outer sides of the two legs of the I-shaped steel are respectively fixedly connected with second gusset plates corresponding to the arrangement positions of the second rib plates, and the I-shaped steel is fixedly connected through the second gusset plates.

10. The bent frame for supporting a bridge according to claim 9, wherein a plurality of stiffening plates are correspondingly connected between the legs of the i-beams at both sides of the supporting beam at positions corresponding to the second gusset plates, respectively, and the stiffening plates are distributed at intervals along the length direction of the i-beams.