CN219240285U

CN219240285U - Steel box girder preassembled welding jig frame structure

Info

Publication number: CN219240285U
Application number: CN202221907993.7U
Authority: CN
Inventors: 姚伟; 李培庆; 张爱然; 王均胜; 李景卫; 丁凯运; 侯祖声; 乔进东; 丁希同; 郭明远; 王迪; 吴奇龙; 屈建刚; 徐海博; 张炜; 张青松; 郭政; 鲁新香; 王希国; 王文炜
Original assignee: Shandong Luqiao Group Co Ltd
Current assignee: Shandong Luqiao Group Co Ltd
Priority date: 2022-07-22
Filing date: 2022-07-22
Publication date: 2023-06-23
Anticipated expiration: 2032-07-22

Abstract

The utility model provides a steel box girder pre-splicing welding jig frame structure which comprises a cross beam, a longitudinal beam, a truss girder and a support, wherein the cross beam is horizontally arranged along the length direction of the jig frame; the longitudinal beams are horizontally arranged along the width direction of the jig frame; the cross beam and the longitudinal beam are mutually perpendicular and crossed, the support is vertically connected to the junction of the cross beam and the longitudinal beam, and the support is placed on the ground; the truss girder is vertically placed and is intersected with the cross beam and the longitudinal beam at the junction of the cross beam and the longitudinal beam respectively. The steel box girder pre-splicing welding is performed on a flat platform, so that the influence of the ground unevenness on the pre-judgment of the steel box girder is avoided, the leveling is not needed when the steel box girder is pre-spliced, and the pre-splicing efficiency of the steel box girder is ensured.

Description

Steel box girder preassembled welding jig frame structure

Technical Field

The utility model belongs to the technical field of bridge engineering, and particularly relates to a steel box girder pre-splicing welding jig frame structure.

Background

In the manufacturing process of the steel box girder, the usage amount of the steel box girder is considerable in practical engineering, and a jig frame structure convenient to assemble and disassemble becomes an indispensable part of engineering construction. When in pre-splicing, the steel box girders cannot be horizontally butted due to uneven ground, so that the connection of the steel box girders is directly influenced, the steel box girders need to be continuously leveled, and the pre-splicing efficiency is greatly influenced. Because the jig frame structure is required to be quick, economical, environment-friendly and durable, the jig frame structure is just matched with the characteristics of high strength, light weight, easy assembly and difficult corrosion of the stainless steel structure, the steel box girder pre-spliced welding jig frame structure is required to be generated,

with the increasing use of steel box girders, a pre-assembled welded jig structure that can provide support is necessary.

Disclosure of Invention

The utility model aims to overcome the defects of the prior art and provide a steel box girder pre-splicing welding jig frame structure, which is used for carrying out pre-splicing welding on a flat platform, so that the influence of uneven ground on the pre-judging of the steel box girder is avoided, leveling is not needed when the steel box girder is pre-spliced, and the pre-splicing efficiency of the steel box girder is ensured.

The aim of the utility model is realized by the following technical scheme:

the steel box girder pre-splicing welding jig frame structure comprises a cross beam, a longitudinal beam, a truss girder and a support, wherein the cross beam is horizontally arranged along the length direction of the jig frame; the longitudinal beams are horizontally arranged along the width direction of the jig frame; the cross beam and the longitudinal beam are mutually perpendicular and crossed, the support is vertically connected to the junction of the cross beam and the longitudinal beam, and the support is placed on the ground; the truss girder is vertically placed and is intersected with the cross beam and the longitudinal beam at the junction of the cross beam and the longitudinal beam respectively.

Further, the truss girder is diamond-shaped and consists of an inverted triangle part and a normal triangle part; the inverted triangle part comprises a stiffening vertical support I, a stiffening diagonal support II and a horizontal rod I; the right-angle triangular component comprises a stiffening vertical support II, a stiffening diagonal support III, a horizontal rod II and a stiffening diagonal support I; the truss girder is symmetrically and fixedly arranged on the cross beam.

Further, the upper portion of the cross beam is provided with a slide way device and a limiting device, the slide way device is connected with a horizontal rod II, and according to the web position of the box girder, the truss girder can be enabled to move transversely along the cross beam, and the limiting device is used for limiting the position of the truss girder, so that the truss girder is supported on the side face of the web of the box girder.

Further, the cross sections of the horizontal rods II of the cross beams and the truss beams are hollow rectangular cross sections, the geometric dimensions of the cross beams and the truss beams are matched with each other, and polytetrafluoroethylene plates are arranged on the contact surfaces so that the truss beams can move transversely.

The beneficial effects of the utility model are as follows:

1. the jig frame provided by the utility model enables the steel box girder to be performed on a flat top plate when being pre-spliced, thereby avoiding the influence of uneven ground on the pre-splicing of the steel box girder, avoiding leveling when the steel box girder is pre-spliced, and ensuring the pre-splicing efficiency of the steel box girder.

2. The truss girder can be tightly supported on the side surface of the box girder web plate through the slideway device and the limiting device.

3. All parts are welded or connected by bolts, so that the construction can be facilitated, the disassembly after use is convenient, and the construction efficiency is improved.

Drawings

FIG. 1 is a perspective view of a steel box girder pre-splicing welding jig frame in an example of the utility model;

FIG. 2 is a right side view of a steel box girder pre-splicing welding jig frame in an example of the utility model;

fig. 3 shows a slide device and a limiting device according to an embodiment of the present utility model.

In the figure: the novel vertical girder comprises a cross beam 1, a longitudinal beam 2, a truss girder 3, a support 4, a stiffening vertical brace I5, a stiffening diagonal brace I6, a stiffening vertical brace II7, a stiffening diagonal brace II8, a horizontal rod I9, a stiffening diagonal brace III10, a horizontal rod II11, an inverted triangle component 12, a normal triangle component 13, a slideway device 14, a limiting device 15 and a polytetrafluoroethylene plate 16.

Detailed Description

The present utility model is further illustrated in the following drawings and detailed description, which are to be understood as being merely illustrative of the utility model and not limiting the scope of the utility model. It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to directions in the drawings, and the words "inner" and "outer" refer to directions toward or away from, respectively, the geometric center of a particular component.

As shown in fig. 1-3, the steel box girder pre-splicing welding jig comprises a cross beam 1, a longitudinal beam 2, a truss girder 3 and a support 4, wherein the cross beam 1 is horizontally arranged along the length direction of the jig; the longitudinal beams 2 are horizontally arranged along the width direction of the jig frame; the cross beam 1 and the longitudinal beam 2 are mutually perpendicular and crossed, the support 4 is vertically connected to the junction of the cross beam 1 and the longitudinal beam 2, and is placed on the ground; the truss girder 3 is vertically arranged and respectively intersected with the cross beam 1 and the longitudinal beam 2 at the junction of the cross beam 1 and the longitudinal beam 2.

The truss girder 3 is diamond-shaped and consists of an inverted triangle part 12 and a normal triangle part 13; the inverted triangle part 12 comprises a stiffening vertical support I5, a stiffening diagonal support I6, a stiffening diagonal support II8 and a horizontal rod I9; the right-angle triangular component 13 comprises a stiffening vertical brace II7, a stiffening diagonal brace III10, a horizontal rod II11 and a stiffening diagonal brace I6; the truss girder 3 is symmetrically and fixedly arranged on the cross beam 1; the upper part of the cross beam 1 is provided with a slideway device 14 and a limiting device 15, the slideway device 14 is connected with a horizontal rod II11, the truss girder 3 can be transversely moved along the cross beam 1 according to the web position of the box girder, and the limiting device 15 is used for limiting the position of the truss girder 3, so that the truss girder 3 is supported on the side surface of the web of the box girder.

The upper part of the cross beam 1 is provided with a slideway device 14 and a limiting device 15, the slideway device 14 is connected with a horizontal rod II11, the truss girder 3 can be transversely moved along the cross beam 1 according to the web position of the box girder, and the limiting device 15 is used for limiting the position of the truss girder 3, so that the truss girder 3 is supported on the side surface of the web of the box girder.

The cross sections of the horizontal rods II11 of the cross beam 1 and the truss beam 3 are hollow rectangular cross sections, the geometric dimensions are matched with each other, and the polytetrafluoroethylene plates 16 are arranged on the contact surfaces so as to facilitate the transverse movement of the truss beam 3.

The cross sections of the longitudinal beams 2 and the supports 4, and the cross sections of the stiffening vertical supports I5, the stiffening diagonal supports I6, the stiffening diagonal supports II8, the horizontal rods I9, the stiffening vertical supports 7, the stiffening diagonal supports I6 and the stiffening diagonal supports II I10 of the truss girder 3 can be groove-shaped, T-shaped, hollow rectangular and the like and are connected through welding or bolts.

The technical means disclosed by the scheme of the utility model is not limited to the technical means disclosed by the embodiment, and also comprises the technical scheme formed by any combination of the technical features.

Claims

1. Steel case roof beam is pieced together welding bed-jig structure in advance, its characterized in that: the tire frame comprises a cross beam (1), a longitudinal beam (2), a truss beam (3) and a support (4), wherein the cross beam (1) is horizontally arranged along the length direction of the tire frame; the longitudinal beams (2) are horizontally arranged along the width direction of the jig frame; the cross beam (1) and the longitudinal beam (2) are mutually perpendicular and crossed, and the support (4) is vertically connected to the junction of the cross beam (1) and the longitudinal beam (2) and is placed on the ground; the truss girder (3) is vertically arranged and is intersected with the cross beam (1) and the longitudinal beam (2) and the junction of the cross beam (1) and the longitudinal beam (2) respectively.

2. The steel box girder pre-splicing welding jig frame structure according to claim 1, wherein: the truss girder (3) is diamond-shaped and consists of an inverted triangle part (12) and a normal triangle part (13); the inverted triangle part (12) comprises a stiffening vertical support I (5), a stiffening diagonal support I (6), a stiffening diagonal support II (8) and a horizontal rod I (9); the regular-release triangular component (13) comprises a stiffening vertical support II (7), a stiffening diagonal support III (10), a horizontal rod II (11) and a stiffening diagonal support I (6); the truss girder (3) is symmetrically and fixedly arranged on the cross beam (1); the upper portion of crossbeam (1) sets up slide device (14) and stop device (15), and slide device (14) are connected with horizon bar II (11), according to the web position of case roof beam, can make truss girder (3) along crossbeam (1) lateral shifting to limit the position of truss girder (3) with stop device (15), make truss girder (3) support in case roof beam web side.

3. The steel box girder pre-splicing welding jig frame structure according to claim 1, wherein: the cross sections of the horizontal rods II (11) of the cross beam (1) and the truss beam (3) are hollow rectangular cross sections, the geometric dimensions of the cross beam and the truss beam are matched with each other, and a polytetrafluoroethylene plate (16) is arranged on the contact surface so that the truss beam (3) can move transversely.

4. The steel box girder pre-splicing welding jig frame structure according to claim 1, wherein: the cross sections of the longitudinal beams (2) and the supports (4), and the cross sections of the stiffening vertical supports I (5), the stiffening diagonal supports I (6), the stiffening diagonal supports II (8), the horizontal rods I (9), the stiffening vertical supports II (7) and the stiffening diagonal supports III (10) of the truss girder (3) can be groove-shaped, T-shaped or hollow rectangular, and are connected through welding or bolts.