A large Japanese-shaped truss folding line arch structure

Abstract

The utility model provides a large-scale Japanese-shaped truss fold line arching structure, including a steel truss, wherein the steel truss includes an upper chord and a lower chord, an intermediate web is installed between the upper chord and the lower chord, the upper chord and the lower chord are divided into seven sections, the upper chord and the lower chord adopt a Japanese-shaped chord structure, the first section and the seventh section of the upper chord are tilted downward, and the upper chord connection between the first section and the second section, the sixth section and the seventh section is bent downward by 73°. Through the technical solution of the utility model, this process adopts a folded arching, and only by correcting the cutting amount of the rod end, it is ensured that the rod is connected and spliced ​​to achieve the overall arching, which does not affect the production of the truss web, and the arching control is performed during the assembly process, which is simple to operate, has high control accuracy, and small deviation. Compared with the traditional arching process, it saves materials, improves the efficiency of component production, and has high economic benefits.

Description

Technical Field

[0001] The utility model relates to the technical field of steel structures, and in particular to a large-scale Japanese-shaped truss folding line arch structure. Background Art

[0002] In large-scale steel structure projects, steel structure corridor trusses or cantilever trusses are widely used. Due to the large deadweight and load, the arching of the rods needs to be considered during production. The arching of traditional box-type components adopts the long strip flame heating method or the special-shaped cutting of the box web to meet the arching requirements of the rods. Flame heating will consume a lot of auxiliary materials and labor, and has high skill requirements for the correction personnel. Improper heating will cause secondary deformation, and the accuracy is difficult to control. The special-shaped cutting of the box web reduces the efficiency of component production and the utilization rate of steel. Utility Model Content

[0003] In order to make up for the deficiencies of the prior art, the utility model provides a large-scale Japanese-shaped truss fold-line arch structure.

[0004] The utility model is realized by the following technical scheme: a large-scale Japanese-shaped truss fold line arch structure, comprising a steel truss, wherein the steel truss comprises an upper chord and a lower chord, an intermediate web bar is arranged between the upper chord and the lower chord, the upper chord and the lower chord are divided into seven sections, the upper chord and the lower chord adopt a Japanese-shaped chord structure, the first section and the seventh section of the upper chord are inclined downward, and the upper chord connection between the first section and the second section, and the sixth section and the seventh section is bent downward by 73 degrees;

[0005] The sun-shaped chord structure includes a lower belly plate, an upper belly plate, a left wing plate and a right edge plate. The middle weld on the lower belly plate has a longitudinal partition, and transverse partitions are welded on both sides of the longitudinal partition. The top welds of the transverse partition and the longitudinal partition have an upper belly plate, and the other side of the transverse partition is welded with the left wing plate and the right edge plate.

[0006] As a preferred solution, the cross-sections of the upper chord and the lower chord are 1000x600.

[0007] As a preferred solution, a corbel for installing the belly rod is installed on the lower chord.

[0008] As a preferred solution, installation position lines of the transverse partition and the longitudinal partition are drawn on the lower belly plate.

[0009] As a preferred solution, the welding method of the diaphragm, the left wing plate and the right edge plate is double-sided electroslag welding.

[0010] Due to the adoption of the above technical solutions, the utility model has the following beneficial effects compared with the prior art: The utility model adopts a broken line arching method. By only modifying the cutting amount of the rod end, the overall arching of the rod can be achieved after butt joint splicing, without affecting the production of the truss web members. The arching control is carried out during the assembly process, with simple operation, high control precision and small deviation. Compared with the traditional arching process, it saves materials, improves the production efficiency of components, and has high economic benefits.

[0011] The additional aspects and advantages of the utility model will become obvious in the following description part or be understood through the practice of the utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The above and / or additional aspects and advantages of the utility model will become obvious and easy to understand from the description of the embodiments in conjunction with the following drawings, wherein:

[0013] Figure 1 is a structural schematic diagram of the utility model;

[0014] Figure 2 is a structural schematic diagram of the daily-shaped chord;

[0015] Wherein, Figure 1 to Figure 2 the corresponding relationship between the reference numerals in the drawings and the components is:

[0016] 1 upper chord, 2 lower chord, 3 middle web member, 4 bracket, 5 lower web plate, 6 transverse diaphragm, 7 longitudinal diaphragm, 8 upper web plate, 9 left wing plate, 10 right edge plate. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0017] In order to more clearly understand the above objects, features and advantages of the utility model, the following further detailed description of the utility model is made in conjunction with the drawings and specific embodiments. It should be noted that, without conflict, the embodiments of the present application and the features in the embodiments can be combined with each other.

[0018] In the following description, many specific details are set forth in order to fully understand the utility model. However, the utility model can also be implemented in other ways different from those described herein. Therefore, the protection scope of the utility model is not limited by the specific embodiments disclosed below.

[0019] The following combines Figure 1 to Figure 2 to specifically illustrate the broken line arching structure of the large daily-shaped truss in the embodiment of the utility model.

[0020] As Figure 1As shown in the figure, the present utility model is realized through the following technical solutions: A large-sized Japanese character-shaped truss broken line camber structure, including a steel truss. Among them, the steel truss includes an upper chord 1 and a lower chord 2. Intermediate web members 3 are installed between the upper chord 1 and the lower chord 2. The cross-sections of the upper chord 1 and the lower chord 2 are 1000x600. A bracket 4 for installing web members is installed on the lower chord 2. The upper chord 1 and the lower chord 2 are divided into seven segments. The upper chord 1 and the lower chord 2 adopt a Japanese character-shaped chord structure. The first segment and the seventh segment of the upper chord 1 incline downward. The connection points of the upper chord 1 between the first segment and the second segment, and between the sixth segment and the seventh segment are bent downward by 73°; As Figure 2 shown, the Japanese character-shaped chord structure includes a lower web plate 5, an upper web plate 8, a left wing plate 9, and a right edge plate 10. There is a longitudinal partition 7 at the middle weld of the lower web plate 5. Transverse partitions 6 are welded on both sides of the longitudinal partition 7. Installation position lines of the transverse partitions 6 and the longitudinal partition 7 are drawn on the lower web plate 5. The upper web plate 8 is welded to the tops of the transverse partitions 6 and the longitudinal partition 7. The other side of the transverse partition 6 is welded to the left wing plate 9 and the right edge plate 10. The welding method of the transverse partition 6 with the left wing plate 9 and the right edge plate 10 adopts double-sided electroslag welding.

[0021] Working process: The present utility model determines the reasonable segmentation position of the truss by lofting the camber curve and combining the lifting tonnage of components, ensuring that the camber value at any point meets the standard requirements; This process adopts broken line camber. Only by correcting the cutting amount at the end of the member, after butt splicing, the overall camber of the member can be achieved without affecting the production of the truss web members. During the assembly process, camber control is carried out, which is simple in operation, high in control precision, and small in deviation. Compared with the traditional camber process, it saves materials, improves the production efficiency of components, and has high economic benefits at the same time.

[0022] In the description of the present utility model, the term "a plurality of" refers to two or more, unless otherwise clearly defined. The terms "upper", "lower", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, so it cannot be understood as a limitation to the present utility model; The terms "connection", "installation", "fixation", etc. should all be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; It can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0023] In the description of this specification, the description of the terms "one embodiment", "some embodiments", "specific embodiments", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0024] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may be subject to various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A large Japanese-shaped truss folding line arch structure, including a steel truss, characterized in that The steel truss comprises an upper chord (1) and a lower chord (2), an intermediate web member (3) is arranged between the upper chord (1) and the lower chord (2), the upper chord (1) and the lower chord (2) are divided into seven sections, the upper chord (1) and the lower chord (2) adopt a Japanese-shaped chord structure, the first section and the seventh section of the upper chord (1) are inclined downward, and the connection between the first section and the second section, and the sixth section and the seventh section of the upper chord (1) is bent downward by 73°; The Japanese-shaped chord structure comprises a lower belly plate (5), an upper belly plate (8), a left wing plate (9) and a right edge plate (10); a longitudinal partition plate (7) is welded in the middle of the lower belly plate (5); transverse partition plates (6) are welded on both sides of the longitudinal partition plate (7); the top ends of the transverse partition plates (6) and the longitudinal partition plates (7) are welded with the upper belly plate (8); and the other side of the transverse partition plate (6) is welded with the left wing plate (9) and the right edge plate (10).

2. A large-scale Japanese-shaped truss fold line arch structure according to claim 1, characterized in that The cross-sections of the upper chord (1) and the lower chord (2) are 1000x600.

3. A large-scale Japanese-shaped truss fold line arch structure according to claim 1, characterized in that The lower chord (2) is provided with a corbel (4) for mounting the belly rod.

4. A large-scale Japanese-shaped truss fold line arch structure according to claim 1, characterized in that The lower belly plate (5) is provided with installation position lines of the transverse partition (6) and the longitudinal partition (7).

5. The large-scale Japanese-shaped truss fold line arch structure according to claim 1 is characterized in that The welding method of the transverse partition (6) and the left wing plate (9) and the right edge plate (10) is double-sided electroslag welding.

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