CN110629683A - Composite assembling type bridge cantilever construction bracket - Google Patents

Composite assembling type bridge cantilever construction bracket Download PDF

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Publication number
CN110629683A
CN110629683A CN201910948253.4A CN201910948253A CN110629683A CN 110629683 A CN110629683 A CN 110629683A CN 201910948253 A CN201910948253 A CN 201910948253A CN 110629683 A CN110629683 A CN 110629683A
Authority
CN
China
Prior art keywords
bracket
pier stud
rod
cantilever construction
bracket main
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201910948253.4A
Other languages
Chinese (zh)
Inventor
赵秋红
张光桥
冉海英
胡凤巧
王连广
刘东美
杨荣泉
尹壮飞
张朋
周高军
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shandong Luqiao Group Co Ltd
Original Assignee
Shandong Luqiao Group Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shandong Luqiao Group Co Ltd filed Critical Shandong Luqiao Group Co Ltd
Priority to CN201910948253.4A priority Critical patent/CN110629683A/en
Publication of CN110629683A publication Critical patent/CN110629683A/en
Pending legal-status Critical Current

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Classifications

    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01DCONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D21/00Methods or apparatus specially adapted for erecting or assembling bridges
    • E01D21/10Cantilevered erection
    • E01D21/105Balanced cantilevered erection

Abstract

The invention provides a composite assembly type bridge cantilever construction bracket. In order to achieve the purpose, the invention is realized by the following technical scheme: a composite assembly type bridge cantilever construction bracket comprises a bracket main beam, a vertical rod and an inclined rod, wherein the bracket main beam is connected with a pier column in an anchoring manner and is provided with an intermediate joint and an end joint; one end of the vertical rod is connected with the end joint of the main beam of the bracket, and the other end of the vertical rod is connected with the diagonal rod; one end of the diagonal rod is connected with the middle joint of the bracket main beam, and the other end of the diagonal rod is connected with the vertical rod; a closed triangular structure is formed among the bracket main beam, the upright stanchion and the diagonal pole.

Description

Composite assembling type bridge cantilever construction bracket
Technical Field
The invention relates to a bridge cantilever construction bracket, in particular to a composite assembly type bridge cantilever construction bracket, and belongs to the technical field of traffic engineering.
Background
At present continuous beam bridge cantilever construction mound top 0# section, cantilever bracket structure has become indispensable construction equipment when especially high mound 0# section is under construction, but conventional cantilever bracket comprises shaped steel welding usually, and overall dimension is great, and the component transportation is more inconvenient, and components such as pre-buried steel sheet need anchor on the pier stud usually during the installation, and is great to pier stud appearance quality influence. The device that falls on the bracket generally adopts the sand bucket, and this structure can't carry out the regulation of elevation under the load effect.
Disclosure of Invention
Aiming at the construction current situation, the invention provides a composite assembly type bridge cantilever construction bracket according to the construction characteristics of a bridge cantilever.
In order to achieve the purpose, the invention is realized by the following technical scheme:
a composite cantilever construction bracket for an assembly type bridge comprises a bracket main beam, a vertical rod and an inclined rod, wherein
The bracket main beam is connected with the pier stud in an anchoring way and is provided with a middle joint and an end joint;
one end of the vertical rod is connected with the end joint of the main beam of the bracket, and the other end of the vertical rod is connected with the diagonal rod;
one end of the diagonal rod is connected with the middle joint of the bracket main beam, and the other end of the diagonal rod is connected with the vertical rod;
a closed triangular structure is formed among the bracket main beam, the upright stanchion and the diagonal pole.
On above-mentioned compound assembled bridge cantilever construction bracket basis, bracket girder and pier stud link are equipped with crossover sub, and crossover sub forms for the section bar welding, and crossover sub includes pier stud connecting portion and girder connecting portion, and pier stud connecting portion and girder connecting portion are the rectangular frame structure.
On the basis of the composite assembly type bridge cantilever construction bracket, a notch is reserved in the pier stud, one end of the adapter extends into the reserved notch of the pier stud, the other end of the adapter is connected with the bracket main beam and located on the same side of the pier stud, and the two bracket main beams) are tensioned through two groups of crossed counter-pulling screw rods, and the end parts of the two groups of crossed counter-pulling screw rods are provided with adjustable screw rods.
On the basis of the composite assembly type bridge cantilever construction bracket, the composite assembly type bridge cantilever construction bracket further comprises a plurality of load adjustment falling frames, and the load adjustment falling frames are located at the top ends of the main beams of the bracket and correspond to the cross beams of the bridge template.
On the basis of the composite assembly type bridge cantilever construction bracket, the load adjustment falling frame comprises an inner cylinder, an outer cylinder and a hydraulic jack, wherein the inner cylinder and the outer cylinder are connected through a self-locking nut, and the hydraulic jack is arranged in the outer cylinder and connected with the inner cylinder.
On the basis of the composite assembly type bridge cantilever construction bracket, a preformed hole or a pre-buried sleeve is arranged on a pier column, and a bracket main beam is anchored with the pier column by adopting an anchor bolt or finish-rolled deformed steel bar.
On the above-mentioned compound assembled bridge cantilever construction bracket basis, set up work platform on the bracket girder.
The invention has the advantages that:
1. the whole bracket is of a composite assembly type structure, the structure is simple, and all components are connected through pin shafts.
2. The closed triangular structure system is reasonable in stress and good in stability.
3. The crossover sub that the bracket girder set up can satisfy multiple anchor operating mode needs.
4. The bracket top is provided with a load-bearing adjustable falling frame, so that the height under the load action can be adjusted, and the applicability is good.
5. The bracket structure is convenient to install and dismantle and flexible to assemble.
6. The rod piece has reasonable size, is convenient to process and manufacture and is convenient to store and transport.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention.
FIG. 1 is a front view of the main beam of the bracket of the present invention without the crossover joint.
FIG. 2 is a side view of the girder of the present invention without the crossover joint.
Fig. 3 is a schematic front view of the adapter of the present invention.
Fig. 4 is a schematic top view of the adapter of the present invention.
FIG. 5 is a schematic side view of an adapter of the present invention.
Fig. 6 is a front view of the bracket main beam of the present invention.
Fig. 7 is a top view of the carrier main beam of the present invention.
Fig. 8 is a side view of the carrier main beam of the present invention.
Fig. 9 is a front view of the bracket main beam with the crossover joint of the present invention.
FIG. 10 is a side view of the present invention bracket girder strap adapter.
FIG. 11 is a top view of the adapter of the present invention.
Fig. 12 is a front view of the main beam with the transition joint brackets of the present invention.
Fig. 13 is a top view of the main beam of the adapter bracket of the present invention.
FIG. 14 is a schematic view of the weight adjustable drop frame of the present invention.
In the figure, the device comprises a cross beam 1, a cross beam 2, a load adjustment falling frame 3, a bracket main beam 4, an inclined rod 5, a vertical rod 6, an upright post 7, a pre-embedded sleeve 8, an anchor bolt 9, a main beam conversion joint 10, a working platform 11, a transverse adjustable screw rod 12, an inner cylinder 13, a nut 14, an outer cylinder 15, a hydraulic jack 16 and a counter-pull screw rod.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate directions
The positional or positional relationship is based on that shown in the drawings and is for convenience of description and simplicity of illustration only
Rather than indicating or implying that the device or element so referred to must have a particular orientation, be constructed and arranged in a particular orientation
Operation, and therefore, should not be construed as limiting the invention. Furthermore, "first," "second," "third," and "fourth" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
As described in the background art, the existing composite heat-insulating template has the following problems: the heat insulation board is easy to fall off and the template body is easy to separate in transportation and use; because the two sides of the template are planes, the walls of the thermal insulation template with the existing structure can not be completely meshed together after construction, and the phenomena of cracking, hollowing, water seepage, falling off and the like are easy to generate; the outer wall of the heat-insulating template body is a plane, so that mortar is not easy to spray, and the mortar is easy to fall off, hollows and cracks are generated. In order to solve the problems, the invention adopts the following technical scheme:
example 1
Referring to fig. 1 and 2, a composite assembly type cantilever construction bracket for a bridge comprises a bracket girder 3, an upright post 4, an inclined post 5 and an upright post 6, referring to fig. 6, 7 and 8, wherein the upright post 6 is arranged at the periphery of the lower part of a pier to play a supporting role, the bracket girder 3 is connected with the pier in an anchoring way and is provided with an intermediate joint 32 and an end joint 31; one end of the upright 4 is connected with a joint 31 at the end part of the bracket main beam 3, and the other end is connected with the upper end of the upright 6; one end of the diagonal rod 5 is connected with the middle joint 32 of the bracket main beam 3, and the other end is connected with the upper end of the upright post 6; a closed triangular structure is formed among the bracket main beam 3, the upright stanchion 4 and the diagonal stanchion 5.
The pier stud is provided with a preformed hole or a pre-buried sleeve, and the bracket girder 3 is anchored with the pier stud by adopting an anchor bolt or finish-rolled deformed steel bar.
Example 2
Referring to fig. 9, 10 and 11, the composite assembly type cantilever construction bracket for the bridge comprises a bracket girder 3, a vertical rod 4 and an inclined rod 5, wherein a conversion joint 9 is arranged at the connecting end of the bracket girder 3 and a pier stud, the bracket girder 3 is connected with the pier stud in an anchoring manner, and is provided with a middle joint 32 and an end joint 31; one end of the upright rod 4 is connected with a joint 31 at the end part of the bracket main beam 3, and the other end is connected with the diagonal rod; one end of the diagonal rod 5 is connected with the middle joint 32 of the bracket main beam 3, and the other end is connected with the upright post; a closed triangular structure is formed among the bracket main beam 3, the upright stanchion 4 and the diagonal stanchion 5.
Referring to fig. 3, 4 and 5, the adapter 9 is formed by welding sectional materials, the adapter 9 includes a pillar connecting portion 91 and a main beam connecting portion 92, and the pillar connecting portion 91 and the main beam connecting portion 92 are both rectangular frame structures and have a pillar connecting hole a and a main beam connecting hole b.
Reserve the notch on the pier stud, 9 pier stud connecting portion 91 one end of crossover sub stretches into the pier stud and reserves the notch and sells the axle and pass pier stud connecting hole a fixed, and crossover sub girder connecting portion 92 one end is connected with bracket girder 3 and sells the axle and pass girder connecting hole b fixed, lies in the pier stud and strains through two sets of criss-cross counter-pull screw rods 16 between two bracket girders 3 with one side, and the tip is equipped with adjustable screw rod 11, ensures overall stability.
In the above embodiments, referring to fig. 14, it further includes a plurality of load adjustment falling frames 2, where the load adjustment falling frames 2 are located at the top end of the bracket girder 3 and correspond to the bridge formwork cross beam, and each load adjustment falling frame includes an inner cylinder 12, an outer cylinder 14, and a hydraulic jack 15, the inner cylinder 12 and the outer cylinder 14 are connected through a self-locking nut 13, and the hydraulic jack 15 is disposed in the outer cylinder 14 and connected with the inner cylinder 12.
In the above embodiments, the work platform 10 is provided on the carrier main beam 3.
In each embodiment, each component is connected by a pin shaft, so that the convenient transportation and the quick assembly are realized.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. 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 (7)

1. The utility model provides a compound assembled bridge cantilever construction bracket which characterized in that: comprises a bracket main beam (3), a vertical rod (4) and an inclined rod (5), wherein
The bracket main beam (3) is connected with the pier stud in an anchoring way and is provided with a middle joint and an end joint;
one end of the upright rod (4) is connected with a joint at the end part of the bracket main beam (3), and the other end is connected with the diagonal rod;
one end of the diagonal rod (5) is connected with the middle joint of the bracket main beam (3), and the other end of the diagonal rod is connected with the vertical rod;
a closed triangular structure is formed among the bracket main beam (3), the upright rod (4) and the diagonal rod (5).
2. The composite type assembly type bridge cantilever construction bracket according to claim 1, wherein: bracket girder (3) is equipped with the crossover sub with the pier stud link, and the crossover sub forms for the section bar welding, and the crossover sub includes pier stud connecting portion and girder connecting portion, and pier stud connecting portion and girder connecting portion are the rectangular frame structure.
3. The composite type assembly type bridge cantilever construction bracket according to claim 2, wherein: the pier stud is provided with a reserved groove opening, one end of the adapter extends into the pier stud reserved groove opening, the other end of the adapter is connected with the bracket main beam (3), the two bracket main beams (3) which are positioned at the same side of the pier stud are tensioned through two groups of crossed opposite-pulling screw rods, and the end part of the adapter is provided with an adjustable screw rod (11).
4. The composite type assembly bridge cantilever construction bracket according to any one of claims 1 to 3, wherein: the device also comprises a plurality of load adjustment falling frames, wherein the load adjustment falling frames are positioned at the top ends of the bracket main beams and correspond to the bridge template cross beams.
5. The composite type assembly type bridge cantilever construction bracket according to claim 4, wherein: the load-bearing adjustment falling frame comprises an inner cylinder (12), an outer cylinder (14) and a hydraulic jack (15), wherein the inner cylinder (12) is connected with the outer cylinder (14) through a self-locking nut (13), and the hydraulic jack (15) is arranged in the outer cylinder (14) and is connected with the inner cylinder (12).
6. The composite type assembly type bridge cantilever construction bracket according to claim 1, wherein: the pier stud is provided with a preformed hole or a pre-buried sleeve, and the bracket main beam (3) is anchored with the pier stud by adopting an anchor bolt or finish-rolled deformed steel bar.
7. The composite type assembly bridge cantilever construction bracket according to any one of claims 1 to 3, wherein: a working platform (10) is arranged on the bracket main beam (3).
CN201910948253.4A 2019-10-08 2019-10-08 Composite assembling type bridge cantilever construction bracket Pending CN110629683A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910948253.4A CN110629683A (en) 2019-10-08 2019-10-08 Composite assembling type bridge cantilever construction bracket

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201910948253.4A CN110629683A (en) 2019-10-08 2019-10-08 Composite assembling type bridge cantilever construction bracket

Publications (1)

Publication Number Publication Date
CN110629683A true CN110629683A (en) 2019-12-31

Family

ID=68975613

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201910948253.4A Pending CN110629683A (en) 2019-10-08 2019-10-08 Composite assembling type bridge cantilever construction bracket

Country Status (1)

Country Link
CN (1) CN110629683A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111877187A (en) * 2020-08-03 2020-11-03 青岛理工大学 Wedge block protection mechanism and assembled bridge cantilever construction bracket

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111877187A (en) * 2020-08-03 2020-11-03 青岛理工大学 Wedge block protection mechanism and assembled bridge cantilever construction bracket
CN111877187B (en) * 2020-08-03 2021-07-16 青岛理工大学 Wedge block protection mechanism and assembled bridge cantilever construction bracket

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