CN210031489U - Stool type bracket capping beam support - Google Patents

Stool type bracket capping beam support Download PDF

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Publication number
CN210031489U
CN210031489U CN201920752795.XU CN201920752795U CN210031489U CN 210031489 U CN210031489 U CN 210031489U CN 201920752795 U CN201920752795 U CN 201920752795U CN 210031489 U CN210031489 U CN 210031489U
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China
Prior art keywords
steel bar
supporting plate
plate
bracket
pier stud
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CN201920752795.XU
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Chinese (zh)
Inventor
邬良玉
张效磊
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China Jiaotong (guangzhou) Construction Co Ltd
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China Jiaotong (guangzhou) Construction Co Ltd
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Abstract

The utility model relates to a bridge building structure technical field specifically indicates a stool formula bracket bent cap support. Including vertically wearing to locate the rod iron of pier stud along the level, its characterized in that: the bearing foundation is positioned on the part of the steel bar extending out of the pier stud; the bearing foundation comprises a supporting plate positioned at the upper end of the steel bar; the supporting plate is of a plate-shaped structure with the upper end face horizontal, and the lower end of the supporting plate is provided with a limiting structure for limiting the supporting plate to move horizontally and transversely. The utility model discloses simple structure, simple to operate, it is simple and convenient to draw materials, can not cause the damage to the pier stud, and the dismantlement of no matter equipment or later stage all is convenient, has very big spreading value.

Description

Stool type bracket capping beam support
Technical Field
The utility model relates to a bridge building structure technical field specifically indicates a stool formula bracket bent cap support.
Background
The Huizhou Luzhou-Taimei bridge and the approach engineering thereof have the starting point positioned in the middle of a goose pond continent at the junction of the Luzhou town and the Traverse town, span the Dongjiang river channel, pass through the Rourba racemosa and the Dilute, and finally reach the junction of the national tract G205 of the Taimei town of Boruo county and the government tract. The total length of the route is 7.61km (wherein: 1516.4m/1 of a grand bridge, 111.2m/2 of an in-line middle bridge, 41.96m/1 of an out-of-line middle bridge, 25 culverts and other road sections are all roadbed), the two-way four-lane first-level highway standard is adopted, the width of the road surface is 21.5m, and the width of the bridge is 23.0 m.
The underbody structure of the approach bridge of the Dongjiang super large bridge mainly adopts column type piers and plate type piers, except for cast-in-place prestressed concrete box girders of 0# to 3# and 35# piers, other pier positions of the approach bridge all adopt small prestressed box girders with the length of 30m, and the underbody structure adopts prestressed concrete cover girders. The cross-sectional dimension of the bent cap is 2.2m multiplied by 2.0m, 2.2m multiplied by 2.43m, 2.0m multiplied by 2.0m, 2.0m multiplied by 2.43m, 2.0m multiplied by 1.8m and other types. The bridge site area of the Dongjiang bridge is greatly influenced by flood season, and is hot and rainy in summer and has large river water level change. If the floor stand of adopting traditional mode carries out improvement construction, the site conditions do not satisfy, and current rod iron + bracket structure is comparatively complicated, and is not suitable for.
For example, a Chinese utility model patent with a patent number of 'CN201820779522. X' and a name of 'a large bracket device for gate-type pier capping beam construction' introduces a structure of a steel bar and a bracket, which comprises a through steel bar, a bracket, a steel base and a nut, wherein the through steel bar is arranged in a pier column reserved hole, the pier top reserved hole adopts a steel pipe with a pre-embedded diameter of 153mm, the brackets are respectively arranged at two ends of the through steel bar, and the bracket is tightly attached to the surface concrete of the pier column as much as possible; the steel base is arranged between the bracket and the screw cap, the screw cap is screwed down from the end of the through steel bar, and no gap exists among the screw cap, the base and the bracket; two nuts must be screwed on each end of the feed-through steel rod. Although the structure is relatively stable, the structure has some defects that the corbels are in contact with concrete on the surface of the pier column, namely in the supporting process, the concrete on the surface of the pier column can provide supporting acting force for the corbels, once the acting force above the corbels is too large, the concrete on the surface of the pier column is damaged, the stability of the whole pier column structure is influenced, in addition, the corbel of the scheme is difficult to install, and the large-scale popularization and use are difficult.
Disclosure of Invention
The utility model aims to solve the defects of the prior art and provide a stool type bracket bent cap support.
The technical scheme of the utility model is that: the utility model provides a stool formula bracket bent cap support, includes the rod iron of vertically wearing to locate the pier stud along the level, its characterized in that: the bearing foundation is positioned on the part of the steel bar extending out of the pier stud; the bearing foundation comprises a supporting plate positioned at the upper end of the steel bar; the supporting plate is of a plate-shaped structure with a horizontal upper end face, the central line of the supporting plate coincides with the projection of the axis of the steel bar in the vertical direction, and the lower end of the supporting plate is provided with a limiting structure for limiting the supporting plate to move horizontally and transversely.
The limiting structure further comprises fixing plates which are respectively arranged on the two transverse sides of the steel bar; the upper end of the fixing plate is fixed on the lower end face of the supporting plate, and a bolt penetrates through the fixing plate; the end parts of the bolts penetrate through the fixing plate along the horizontal direction and are tightly propped against the transverse side part of the steel bar, and the axes of the bolts at the two transverse sides of the steel bar are overlapped.
Furthermore, a plurality of bolts arranged at intervals along the longitudinal direction penetrate through the fixing plate.
The base is positioned between the support plate and the steel bar; the base upper end is the straight terminal surface that closely laminates with backup pad lower terminal surface, and the lower extreme is the convex terminal surface that closely laminates with the rod iron upper surface, and the horizontal both ends of base are supported tightly respectively at two fixed plate inboards.
The device further comprises a steel pipe pre-embedded in the pier stud; the steel bar passes through the steel pipe along the horizontal longitudinal direction.
The utility model has the advantages that: 1. the upper end of the steel bar is provided with the support plate for providing a bracket support platform, the lower end of the support plate is provided with the limiting structure for avoiding the movement of the support plate, the support plate and the limiting structure are not actually contacted with concrete on the outer surface of the pier column, the pier column cannot be damaged naturally, and the combination structure of the support plate and the steel bar is simple and convenient to install;
2. the combined structure of the fixing plate and the bolt is used as a limiting structure to limit the movement of the supporting plate, so that the structural stability of the supporting plate is improved, the limiting structure is convenient to install, the bracket can be assembled without introducing large-scale hoisting equipment, the selected materials are common materials which are cheap and easy to obtain, and the cost is low;
3. the contact area between the support plate and the steel bar is increased by adding the base, the pressure is reduced, the damage to the steel bar under the condition of overlarge bearing is avoided, the material can be recycled, and the disassembly and the assembly are convenient;
4. through burying the steel pipe underground in advance on the pier stud, make things convenient for later stage installation rod iron equipment bracket structure.
The utility model discloses simple structure, simple to operate, it is simple and convenient to draw materials, can not cause the damage to the pier stud, and the dismantlement of no matter equipment or later stage all is convenient, has very big spreading value.
Drawings
FIG. 1: the utility model discloses a schematic view of a mounting structure of a bracket structure and a pier stud;
FIG. 2: the bracket structure of the bracket cover beam of the utility model is schematically shown;
wherein: 1-pier stud; 2-a steel bar; 3, a support plate; 4, fixing a plate; 5, a bolt; 6, a base; 7-steel pipe.
Detailed Description
The present invention will be described in further detail with reference to the following drawings and specific embodiments.
Referring to fig. 1-2, a stool-type bracket bent cap support, the bracket of this embodiment is fixed on a pier stud 1, when the pier stud 1 is poured, a steel pipe 7 is embedded in a position where the bracket needs to be installed in advance, as shown in fig. 2, a steel rod 2 extending along the horizontal longitudinal direction penetrates through the steel pipe 7, and the steel pipe 7 extends out of the two longitudinal ends of the steel rod 2 respectively. The present embodiment uses the steel bar 2 as a support base for the entire corbel.
The upper end of the 2 projecting parts of rod iron of this embodiment is provided with backup pad 3, and backup pad 3 is the horizontally platelike structure of up end for place sand section of thick bamboo isotructure, 3 central lines of backup pad and 2 axes of rod iron coincide in the projection of vertical direction, and backup pad 3 uses 2 axes of rod iron as the central line symmetrical arrangement on rod iron 2 promptly. The lower extreme welding of backup pad 3 has two fixed plates 4 of arranging along vertical direction, the horizontal both sides of rod iron 2 are arranged in to two fixed plates 4 branch, wear to be equipped with a plurality of bolts 5 of arranging along the vertical interval of level on every fixed plate 4, 5 tip of bolt are followed the horizontal traversing fixed plate 4 and are supported tightly at the horizontal lateral part of rod iron 2, be provided with the nut structure on fixed plate 4, be used for fixing bolt 5, in order to guarantee the balance, the 5 dead centers of bolt axis of the horizontal both sides of rod iron 2 of this embodiment. Similarly, the support plates 3 located at the longitudinal two sides of the pier stud 1 are symmetrically arranged by taking the center line of the pier stud as the center.
In order to increase the contact area between the supporting plate 3 and the steel bar 2 and reduce the pressure, as shown in fig. 2, a base 6 is disposed between the supporting plate 3 and the steel bar 2, the upper end of the base 6 is a straight end surface closely attached to the lower end surface of the supporting plate 3, the lower end of the base is a circular arc end surface closely attached to the upper surface of the steel bar 2, and the two horizontal ends of the base 6 are respectively abutted to the inner sides of the two fixing plates 4.
When the device is installed, 1, a reserved hole of a pier body is chiseled through, and a steel bar 2 is penetrated through;
2. installing a stool type bracket and screwing down a stool type bracket fixing bolt 5;
3. installing a sand cylinder, a support longitudinal beam and a bottom die system;
4. constructing a cover beam steel bar, a template, concrete and prestress;
5. unloading the sand cylinder, and dismantling the bottom die system, the support transverse and longitudinal beams and the sand cylinder;
6. loosening the bench-type bracket fixing bolt 5, and dismantling the bench-type bracket and the steel bar 2;
7. and (5) repeating the steps for the next pier cap beam support.
The bracket of this embodiment possesses characteristics such as safety, high efficiency, save material:
1. light weight, material saving: the conventional triangular bracket weighs about 280kg singly, while the bracket of the embodiment adopts a direct force transmission structure and weighs about 12kg singly.
2. The positioning is quick: two workers are needed for cooperation operation when the traditional triangular bracket is installed and positioned, when a truck crane lifts a hanging basket to a steel bar position, the hanging basket is narrow, high-altitude operation is greatly shaken, and the angle adjustment of the bracket is difficult to control, but the bracket provided by the embodiment can be stably installed on the steel bar 2 to complete positioning by virtue of the arc-shaped base 6, and then the transverse fastening bolt 5 is screwed down to fix the bracket;
3. the installation and the disassembly are convenient: the traditional triangular bracket needs two workers to cooperate to operate when being installed and positioned, so that heavy components can be installed and disassembled, and the bracket of the embodiment only needs a single worker to easily complete the installation and the disassembly, so that the installation and the disassembly efficiency are effectively improved;
4. safety and stability: traditional triangle-shaped bracket passes through fastening bolt transmission upper portion supporting structure load on the rod iron, it has certain fastening power probably to require rod iron end bolt, otherwise cause the bracket slope, the support subsides the scheduling problem, and need fill up rubber pad or geotechnological cloth during the bracket installation, prevent to pier shaft concrete damage, the difficult control of in-process precision is torn open to the bracket ann, construction operation security is relatively poor, there is the slope risk after the installation is accomplished, and the bracket supporting structure atress of this embodiment is simpler, only play the transmission load effect, the bracket structure of this embodiment has improved the support security, and do not have the risk of toppling.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (5)

1. The utility model provides a bench formula bracket bent cap support, includes along horizontal vertical rod (2) of wearing to locate pier stud (1), its characterized in that: the bearing foundation is positioned on the part of the steel bar (2) extending out of the pier stud (1); the bearing foundation comprises a supporting plate (3) positioned at the upper end of the steel bar (2); the supporting plate (3) is of a plate-shaped structure with the upper end face horizontal, the longitudinal center line of the supporting plate (3) coincides with the projection of the axis of the steel bar (2) in the vertical direction, and the lower end of the supporting plate (3) is provided with a limiting structure for limiting the supporting plate (3) to move horizontally and transversely.
2. A bench-type corbel capping beam support as claimed in claim 1, wherein: the limiting structure comprises fixing plates (4) which are respectively arranged on the two transverse sides of the steel bar (2); the upper end of the fixed plate (4) is fixed on the lower end face of the supporting plate (3), and a bolt (5) penetrates through the fixed plate (4); the end parts of the bolts (5) horizontally and transversely penetrate through the fixing plate (4) and are abutted against the transverse side part of the steel bar (2), and the axes of the bolts (5) on the transverse two sides of the steel bar (2) are overlapped.
3. A bench-type corbel capping beam support as claimed in claim 2, wherein: the fixed plate (4) is provided with a plurality of bolts (5) arranged at intervals along the longitudinal direction in a penetrating way.
4. A bench-type corbel bracket as claimed in claim 2 or 3, wherein: the steel bar fixing device also comprises a base (6) positioned between the support plate (3) and the steel bar (2); the upper end of the base (6) is a straight end face tightly attached to the lower end face of the supporting plate (3), the lower end of the base is an arc-shaped end face tightly attached to the upper surface of the steel bar (2), and the two transverse ends of the base (6) are respectively abutted to the inner sides of the two fixing plates (4).
5. A bench-type corbel capping beam support as claimed in claim 1, wherein: the device also comprises a steel pipe (7) pre-buried in the pier stud (1); the steel bar (2) penetrates through the steel pipe (7) along the horizontal longitudinal direction.
CN201920752795.XU 2019-05-23 2019-05-23 Stool type bracket capping beam support Active CN210031489U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201920752795.XU CN210031489U (en) 2019-05-23 2019-05-23 Stool type bracket capping beam support

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201920752795.XU CN210031489U (en) 2019-05-23 2019-05-23 Stool type bracket capping beam support

Publications (1)

Publication Number Publication Date
CN210031489U true CN210031489U (en) 2020-02-07

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201920752795.XU Active CN210031489U (en) 2019-05-23 2019-05-23 Stool type bracket capping beam support

Country Status (1)

Country Link
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112482233A (en) * 2020-12-03 2021-03-12 中国建筑土木建设有限公司 Supporting device for temporary support for bent cap construction and construction method thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112482233A (en) * 2020-12-03 2021-03-12 中国建筑土木建设有限公司 Supporting device for temporary support for bent cap construction and construction method thereof

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