CN214939300U

CN214939300U - Bridge support

Info

Publication number: CN214939300U
Application number: CN202120380480.4U
Authority: CN
Inventors: 章从旭; 刘永松; 董俭召
Original assignee: Road and Bridge International Co Ltd; Road and Bridge East China Engineering Co Ltd
Current assignee: Road and Bridge International Co Ltd; Road and Bridge East China Engineering Co Ltd
Priority date: 2021-02-19
Filing date: 2021-02-19
Publication date: 2021-11-30
Anticipated expiration: 2031-02-19

Abstract

The utility model belongs to the technical field of the bridge construction, a bridge support is disclosed, including supporting foundation pile and support post, support the foundation pile and set up on the ground, support the bottom embedding of stand and support in the foundation pile, and with the ground butt, support the stand great with the area of contact who supports the foundation pile, prevent effectively that the support post from producing and rocking, make its bridge superstructure that supports the top more stably, be connected through a plurality of fasteners between support post and the ground, a plurality of fasteners set up along support post's circumference interval, can improve support post's steadiness. In will supporting column's bottom embedding support foundation pile to be connected through a plurality of fasteners and ground, effectively improve supporting column's support intensity and stability, prevent bridge superstructure off normal in the work progress, improve construction quality, reduce the safety risk.

Description

Bridge support

Technical Field

The utility model relates to a bridge construction technical field especially relates to a bridge support.

Background

The bridge support is used as an auxiliary supporting structure and is used for bearing the upper structure of the bridge in the construction stage, and the safety of a construction site is improved. For the situation that the lower part of a bridge to be constructed has a traffic requirement, a door opening support is usually arranged at a construction site, and the door opening support not only needs to provide a passage for the running of vehicles below, but also needs to have enough supporting strength.

When the bridge support is constructed at the present stage, firstly, a supporting bottom pile is poured on a foundation, after the supporting bottom pile is solidified and molded, a hoisting device is used for hoisting a supporting upright column to the position above the supporting bottom pile, and the supporting upright column is connected with the supporting bottom pile through an anchoring bolt. After the construction of the bridge support is completed, the prefabricated bridge superstructure is hoisted to the supporting upright posts and is fixedly connected with the supporting upright posts. The existing support stand column and the support bottom pile are poor in connection stability and prone to shaking, the upper structure of the bridge deviates, the overall construction quality of the bridge is difficult to guarantee, and certain potential safety hazards exist.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a bridge support improves the support post and supports the connection stability between the foundation pile, avoids bridge superstructure off normal, guarantees construction quality, eliminates the potential safety hazard.

To achieve the purpose, the utility model adopts the following technical proposal:

a bridge support, comprising:

a support bottom pile connected with the foundation;

the top end of the supporting upright post is configured to be connected with the upper structure of the bridge, and the bottom end of the supporting upright post is embedded in the supporting bottom pile and is abutted against the foundation;

the fasteners are arranged along the circumferential direction of the supporting upright post at intervals, and two ends of each fastener are respectively connected to the supporting upright post and the foundation.

As the utility model provides a bridge support's preferred scheme, the fastener includes the anchor reinforcing bar, the one end of anchor reinforcing bar with the support post is connected, and the other end imbeds in the ground.

As the utility model provides a bridge support's preferred scheme, be provided with on the ground and plant the muscle groove, the anchor reinforcing bar is kept away from support post's one end inserts in planting the muscle groove, the anchor reinforcing bar with it glues to be provided with the bar planting between the cell wall in muscle groove to plant.

As the utility model provides a bridge support's preferred scheme still includes first enhancement subassembly, the both ends of first enhancement subassembly connect respectively in support post with support the top surface of foundation pile.

As the utility model provides a bridge support's preferred scheme, first enhancement subassembly is including continuous floor and backing plate, the floor with the support post is connected, the backing plate with the top surface butt of supporting the foundation pile.

As the utility model provides a bridge support's preferred scheme, first enhancement subassembly is followed support post's circumference interval is provided with a plurality ofly.

As the utility model provides a bridge support's preferred scheme still includes the second and strengthens the subassembly, the second strengthen the subassembly set up in on the support post, the second strengthen the subassembly inlay and locate support in the foundation pile.

As the utility model provides a bridge support's preferred scheme, the support post includes the steel pipe, the steel pipe embedding concrete has been pour in the one end of supporting the foundation pile.

As the utility model provides a bridge support's preferred scheme still includes the climbing subassembly, the climbing subassembly set up in on the support post.

As the utility model provides a bridge support's preferred scheme, the climbing subassembly includes a plurality of brackets, and is a plurality of the bracket is followed support column's length direction interval sets up.

The utility model has the advantages that:

the utility model provides a bridge support, including supporting foundation pile and support post, support the foundation pile and set up on the ground, support post's bottom embedding supports in the foundation pile, and with the ground butt, support post is great with the area of contact who supports the foundation pile, prevent effectively that support post from producing to rock, make its bridge superstructure that supports the top more stably, be connected through a plurality of fasteners between support post and the ground, a plurality of fasteners set up along support post's circumference interval, can improve support post's steadiness. In will supporting column's bottom embedding support foundation pile to be connected through a plurality of fasteners and ground, effectively improve supporting column's support intensity and stability, prevent bridge superstructure off normal in the work progress, improve construction quality, reduce the safety risk.

Drawings

FIG. 1 is a front view of a bridge support according to an embodiment of the present invention;

fig. 2 is a top view (hidden bracket) of a bridge support according to an embodiment of the present invention.

In the figure:

1-supporting bottom piles; 2-supporting the upright post; 3-a fastener; 4-a first reinforcement component; 5-a bracket;

41-rib plate; 42-a backing plate;

100-foundation.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, detachably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "left", "right", and the like are used in the orientation or positional relationship shown in the drawings only for convenience of description and simplicity of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.

As shown in fig. 1 and 2, the present embodiment provides a bridge support for supporting a bridge superstructure. The bridge support comprises a support bottom pile 1 and a support upright post 2.

The support bottom pile 1 is disposed on the foundation 100. The bottom ends of the support columns 2 are embedded in the support bottom piles 1 and abut against the foundation 100. The contact area of the support upright post 2 and the support bottom pile 1 is large, so that the support upright post 2 is effectively prevented from shaking, and the upper structure of the bridge above the support upright post is more stably supported. The support columns 2 are connected to the foundation 100 by a plurality of fasteners 3. A plurality of fasteners 3 set up along the circumference interval of support post 2, can improve the steadiness of support post 2. The bottom embedding that will support stand 2 supports in the foundation pile 1 to be connected with ground 100 through a plurality of fasteners 3, effectively improve support column 2's support intensity and stability, prevent bridge superstructure off normal in the work progress, improve construction quality, reduce the safety risk.

As shown in fig. 1, optionally, the fastener 3 comprises an anchoring rebar. One end of the anchoring bar is connected to the support post 2 and the other end is embedded in the foundation 100 to firmly fix the support post 2 to the foundation 100.

Preferably, the anchoring steel bars are welded on the supporting upright posts 2, so that the connection is firm and reliable and is not easy to break. The foundation 100 is provided with a tendon planting groove. One end of the anchoring steel bar far away from the support upright post 2 is fixedly connected with the groove wall of the bar planting groove through bar planting glue.

In this embodiment, when constructing the bridge support, a plurality of tendon-embedding grooves are drilled on the foundation 100 according to the design position, a plurality of anchoring steel bars are welded in advance in the circumferential direction of the support column 2, and the tendon-embedding grooves correspond to the anchoring steel bars one to one. Then hoisting the support upright post 2 to the upper part of the designed position by using hoisting equipment, and pouring the bar-planting glue into the bar-planting groove. The hoisting equipment drives the supporting upright post 2 to descend, so that the anchoring steel bars at the bottom end of the supporting upright post 2 are inserted into the corresponding steel bar planting grooves. After the bar planting glue in the bar planting groove is solidified, the anchoring steel bar can be firmly bonded with the groove wall of the bar planting groove, so that the support upright post 2 is stably connected on the foundation 100.

After the support columns 2 are fixed to the foundation 100, a formwork is erected on the outer sides of the support columns 2 according to the design height of the support bottom piles 1. And a pouring cavity is formed between the template and the support upright post 2. Concrete is poured in the pouring cavity, and vibration and stirring are carried out, so that air bubbles in the concrete are eliminated, the concrete is combined compactly, the phenomena of honeycomb pitted surface and the like of a concrete structure are avoided, and the strength of the supporting bottom pile 1 is improved. And (5) removing the template after the concrete reaches the curing time. The supporting upright post 2 is bonded with the formed supporting bottom pile 1, so that the supporting upright post 2 is firmly embedded in the supporting bottom pile 1. That is, supporting bottom pile 1 wraps up in the outside of support post 2, effectively improves support post 2's stability, prevents that it from warping because the bridge superstructure is overweight.

Preferably, the anchoring bar is connected to the sidewall of the support post 2, so that the anchoring bar can be not only fixed to the foundation 100, but also firmly bonded to the concrete structure of the support bottom pile 1, thereby improving the connection strength between the support bottom pile 1 and the support post 2. Further, a plurality of anchor reinforcing bars evenly distributed in the circumference of support post 2 to make a plurality of anchor reinforcing bars atress even.

In this embodiment, six anchoring steel bars are uniformly distributed at the bottom end of the support column 2, the diameter of each anchoring steel bar is 28mm, the length is 40cm, the depth of the embedded foundation 100 is 30cm, and the support column 2 can be ensured to have sufficient support strength. In other embodiments, the number, size, and implantation depth of the anchoring bars may be set according to the strength calculation result, as long as the connection strength of the support column 2 and the foundation 100 can be ensured to meet the design requirement.

In other embodiments of the present invention, the fastening member 3 may also include an anchor bolt. The bottom surface of the support column 2 is provided with a steel plate which is fixedly connected with the foundation 100 through foundation bolts.

As shown in fig. 1 and 2, the bridge girder also comprises a first reinforcement assembly 4. The both ends of first reinforcement component 4 are connected respectively in the top surface of support post 2 and support foundation pile 1 to improve the support intensity of support post 2 not embedding support foundation pile 1's one end, effectively prevent support post 2 because the slope of bridge superstructure's gravity warp.

Specifically, the first reinforcement member 4 includes a rib 41 and a backing plate 42 connected. The backing plate 42 abuts on the top face of the support bottom pile 1, and the rib plate 41 connected to the backing plate 42 is connected to the support column 2. The tie plate 42 can increase the contact area between the rib plate 41 and the support bottom pile 1, and improve the support stability of the first reinforcement member 4 as a whole.

Ribs 41 and backing plate 42 are made of 16mm thick steel plates, and are strong and not prone to deformation. The ends of rib 41 are welded to support upright 2 and to backing plate 42 respectively. The backing plate 42 may be stacked directly on the top face of the supporting bottom pile 1 or the backing plate 42 and the supporting bottom pile 1 may be fixed by bolts.

As shown in fig. 2, in the present embodiment, four first reinforcing members 4 are provided at intervals along the circumferential direction of the support column 2, so as to provide sufficient support strength for the non-embedded end of the support column 2. The four first reinforcing components 4 are uniformly distributed along the circumferential direction of the support column 2, so that the stress of each first reinforcing component 4 is uniform, and the support column 2 is effectively prevented from being inclined and deformed in all directions. In other embodiments, the number of the first reinforcing members 4 and the size of the steel plate for manufacturing the first reinforcing members 4 may be set according to the strength calculation result, and is not limited herein.

Further, a second reinforcing component is arranged at one end of the supporting upright 2 embedded in the supporting bottom pile 1. The second reinforcement members are attached to the support uprights 2 before the formwork supporting the bottom pile 1 is erected. The second reinforcement assembly is located in the casting cavity formed by the formwork and the support upright 2. After concrete is poured and formed in the pouring cavity, the second reinforcing component is embedded in the concrete structure of the supporting bottom pile 1, and the connecting strength between the supporting upright post 2 and the supporting bottom pile 1 is effectively improved. Preferably, the second reinforcing component comprises waste steel bars cut at a construction site, construction resources can be fully utilized, and cost is saved.

In this embodiment, the support column 2 comprises a steel pipe. The bottom of steel pipe is inlayed and is located in supporting foundation pile 1, and the top and the bridge superstructure of steel pipe are connected. Need the interval to set up a plurality of steel pipes along the extending direction of bridge to support bridge superstructure, when guaranteeing to support intensity, can alleviate transportation weight, save material. In other embodiments of the present invention, the steel pipe may not be provided, but the support column 2 is provided as a space truss or a solid structure.

Further, in order to improve the strength of the bottom end of the steel pipe, after the construction of the supporting bottom pile 1 is completed, concrete is poured into one end of the steel pipe embedded supporting bottom pile 1, so as to increase the contact area between the supporting upright post 2 and the foundation 100. Meanwhile, the steel pipe is clamped between the concrete structures on the inner side and the outer side, so that the steel pipe is effectively prevented from inclining or deforming, and the overall supporting strength and stability of the bridge support are improved.

As shown in fig. 1, a climbing assembly is optionally provided on the support column 2. Constructors can climb to the top end of the support column 2 to connect the bridge superstructure with the top end of the support column 2. In particular, the climbing assembly comprises a plurality of carriages 5. A plurality of brackets 5 are provided at intervals along the longitudinal direction of the support column 2. The bracket 5 is a U-shaped steel bar and is easy to manufacture. In other embodiments, the climbing assembly may also be a scaffold arranged on one side of the support column 2.

Aiming at the condition that vehicles need to pass below a bridge to be constructed, two supporting upright columns 2 need to be arranged at intervals along the width direction of the bridge, supporting bottom piles 1 are respectively poured at the bottom ends of the two supporting upright columns 2, and a vehicle running channel is formed between the two supporting upright columns 2. When the design height of bridge is higher, required support post 2 is also higher, for avoiding support post 2's non-embedded end to warp, need set up horizontally link between two support post 2 to connect the top of two support post 2. Bridge superstructure sets up on the horizontally link, and link and two support post 2 support bridge superstructure jointly, avoid support post 2 to warp and lead to bridge superstructure off normal.

It should be noted that, after the construction of the bridge support is completed, the superstructure of the bridge can be constructed. During construction, steel bars can be bound above the supporting upright posts 2, templates can be erected, and cast-in-place concrete forms the upper structure of the bridge. The bridge superstructure can also be prefabricated in advance in the construction rear site, and after the construction of the bridge support is completed, the prefabricated bridge superstructure is directly hoisted to the upper part of the supporting upright post 2 and fixed. The bridge construction is accomplished, and this bridge beam supports can be dismantled to the rear of reaching standard in intensity detection.

It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Numerous obvious variations, rearrangements and substitutions will now occur to those skilled in the art without departing from the scope of the invention. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A bridge support, comprising:

a support bottom pile (1) connected to the foundation (100);

the top end of the supporting upright post (2) is configured to be connected with the upper structure of the bridge, and the bottom end of the supporting upright post (2) is embedded in the supporting bottom pile (1) and is abutted to the foundation (100);

the fastening pieces (3) are arranged at intervals along the circumferential direction of the supporting upright post (2), and two ends of each fastening piece (3) are connected to the supporting upright post (2) and the foundation (100) respectively.

2. Bridge support according to claim 1, characterized in that the fasteners (3) comprise anchoring bars, one end of which is connected to the support columns (2) and the other end is embedded in the foundation (100).

3. The bridge support according to claim 2, wherein the foundation (100) is provided with a bar planting groove, one end of the anchoring steel bar far away from the support column (2) is inserted into the bar planting groove, and bar planting glue is arranged between the anchoring steel bar and the groove wall of the bar planting groove.

4. The bridge support according to claim 1, characterized in that it further comprises a first reinforcing assembly (4), the two ends of said first reinforcing assembly (4) being connected to the top surfaces of said supporting upright (2) and said supporting bottom pile (1), respectively.

5. The bridge support according to claim 4, characterized in that said first reinforcement assembly (4) comprises a rib (41) and a pad (42) connected, said rib (41) being connected to said supporting upright (2), said pad (42) being in abutment with the top surface of said supporting bottom pile (1).

6. The bridge support according to claim 4, characterized in that said first reinforcing assembly (4) is provided in plurality at intervals along the circumference of said supporting upright (2).

7. The bridge support according to claim 1, characterized in that it further comprises a second reinforcing assembly provided on the supporting upright (2), said second reinforcing assembly being embedded in the supporting bottom pile (1).

8. The bridge support according to claim 1, characterized in that the supporting uprights (2) comprise steel tubes, which are cast with concrete embedded in one end of the supporting bottom piles (1).

9. The bridge support according to claim 1, characterized in that it further comprises a climbing assembly arranged on said supporting upright (2).

10. The bridge support according to claim 9, characterized in that the climbing assembly comprises a plurality of brackets (5), the plurality of brackets (5) being arranged at intervals along the length of the support column (2).