Horizontal assembling jig frame for short section of roof steel truss

Abstract

The utility model relates to the technical field of steel structure construction, in particular to a roof steel truss short section horizontal splicing jig frame which comprises two horizontally-arranged bottom rods, a plurality of stand column supports arranged on the bottom rods at intervals and a plurality of supporting cross beams connected between the two bottom rods. The bottom ends of the stand column supports are fixedly welded to the top faces of the bottom rods, the two ends of the supporting cross beam are fixedly welded to the two bottom rods respectively, stand column inclined struts are arranged between the bottom rods and the stand column supports and arranged on the two sides of the stand column supports, limiting top supports are arranged at the top ends of the stand column supports and are of a U-shaped plate structure, and fasteners are arranged on the limiting top supports and are fastening bolts. The fastening piece is perpendicular to the limiting jacking vertical plate and is in threaded connection with the limiting jacking single-side vertical plate, so that a chord member supported on the upper portion is conveniently fixed to the jig frame, welding obstacles caused by movement of all joints of the truss to be assembled in the welding and assembling process are avoided, and the truss assembling qualification rate is increased.

Description

Technical Field

[0001] This utility model relates to the field of steel structure construction technology, and specifically discloses a short-section horizontal assembly frame for roof steel trusses. Background Technology

[0002] With the development of the construction industry, more and more roofs are adopting spatial steel truss structures. For the hoisting of large-span steel trusses, segmented hoisting is used. The assembly of short steel truss sections requires the use of horizontal assembly jigs for support. Most steel truss assembly jigs use welded steel sections for their support rods, which are placed under each node of the steel truss to be assembled. However, using only steel sections as support rods to support each node of the steel truss lacks stability. The nodes of the steel truss are prone to movement and deformation during the assembly and welding process, which reduces the stability and pass rate of the short steel truss assembly. Utility Model Content

[0003] The purpose of this utility model is to provide a short-section horizontal assembly frame for roof steel trusses, in order to solve the technical problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A short-section horizontal assembly frame for a roof steel truss includes two horizontally arranged base rods, multiple vertical support columns on the base rods, and multiple support beams connecting the two base rods. Both base rods are arc-shaped rod structures, arranged side-by-side with a gap between them. The multiple vertical support columns are evenly spaced, with their bottom ends welded to the top surface of the base rods. The support beams are evenly spaced, with both ends welded to the two base rods respectively. Diagonal braces are provided between the base rods and the vertical support columns, located on both sides of the column support. The diagonal braces, base rods, and column support columns form a triangular structure. Both ends of the diagonal braces are welded to the webs of the base rods and column support columns respectively. A limiting support is provided at the top of each column support column. The limiting support is a U-shaped plate structure with fasteners, specifically bolts, that are threaded vertically to the limiting support's vertical plate and connected to one side of the limiting support's vertical plate.

[0006] Furthermore, the limiting support includes an L-plate sub-component and an L-plate mother-component. The horizontal plate end of the L-plate mother-component is provided with an inner groove. The horizontal plate of the L-plate sub-component is slidably connected in the inner groove of the L-plate mother-component. The L-plate mother-component is provided with multiple threaded holes, which are connected to one side wall of the inner groove. A limiting bolt is provided in the threaded hole.

[0007] Furthermore, the spacing between adjacent support beams is twice the spacing between adjacent column supports.

[0008] Furthermore, the connection point between the column diagonal brace and the column support is at 1 / 2 to 2 / 3 of the column support height.

[0009] Furthermore, the fastener has a rubber pad at its end inside the opening of the U-shaped structure of the limiting top support.

[0010] Compared with the prior art, this utility model has the following features and beneficial effects:

[0011] This utility model uses two horizontally arranged base rods, multiple upright supports on the base rods, and multiple supporting beams connecting the two base rods to form a jig for the horizontal assembly and welding of short sections of steel trusses. The structure is stable and reliable. By setting limiting supports at the top of the upright supports, and fasteners on the limiting supports, it is easy to fix the upper supporting chords to the jig, avoiding welding obstacles caused by the movement of the nodes of the truss to be assembled during the welding and assembly process, and improving the qualification rate of truss assembly. It has the characteristics of safety and applicability, and has good promotion and practical value. After widespread promotion and application, it will generate good economic benefits. Attached Figure Description

[0012] Figure 1 This is a side view of the structure of this utility model;

[0013] Figure 2 This is a partial front view schematic diagram of the structure of this utility model;

[0014] Figure 3 This is a schematic diagram of the distribution structure of the column support on the base rod of this utility model.

[0015] Attached reference numerals: 1. Base rod; 2. Column support; 3. Support beam; 4. Column diagonal brace; 5. Limiting top support; 6. Fastener; 7. Limiting bolt; 8. Rubber pad. Detailed Implementation

[0016] To make the technical means, innovative features, objectives and effects of this utility model easier to understand, the utility model will be further described below.

[0017] The embodiments described herein are specific implementations of this utility model, used to illustrate the concept of this utility model. They are all illustrative and exemplary, and should not be construed as limiting the implementation methods or scope of this utility model. In addition to the embodiments described herein, those skilled in the art can employ other obvious technical solutions based on the content disclosed in the claims and specification of this application. These technical solutions include those that make any obvious substitutions and modifications to the embodiments described herein.

[0018] This utility model discloses a short-section horizontal assembly frame for roof steel trusses, such as... Figures 1 to 3As shown, the support frame is located at the bottom of the steel truss section to be assembled. It includes two horizontally arranged base members 1, multiple vertical support columns 2 mounted on the base members 1, and multiple supporting beams 3 connecting the two base members 1. Both base members 1 are arc-shaped rod structures, with the arc of the base members 1 matching the arc of the upper and lower chords of the steel truss section to be assembled. The two base members 1 are arranged side-by-side with spacing between them. The vertical support columns 2 are HW250*250*9*14 steel sections, and the multiple vertical support columns 2 are evenly spaced. The bottom ends of the vertical support columns 2 are welded and fixed to the top surface of the base members 1. The supporting beams 3 are HW200*200*8*12 steel sections. Both the vertical support columns 2 and the supporting beams 3 are I-beams, and the supporting beams 3 are evenly spaced. The support beam 3 is welded and fixed to two base rods 1 at both ends. The spacing between adjacent support beams 3 is twice the spacing between adjacent column supports 2. A column brace 4 is provided between the base rod 1 and the column support 2, located on both sides of the column support 2. The column brace 4, base rod 1, and column support 2 form a triangular structure. The two ends of the column brace 4 are welded and fixed to the webs of the base rod 1 and the column support 2, respectively. The connection point between the column brace 4 and the column support 2 is at 1 / 2 to 2 / 3 of the height of the column support 2. A limiting support 5 is provided at the top of the column support 2. The limiting support 5 is a U-shaped plate structure, including an L-plate sub-component and an L-plate mother component. The horizontal end of the L-plate mother component has an inner groove. The inner groove is matched with the cross plate of the L-plate component. A continuous sliding column perpendicular to the bottom of the groove is provided on the groove wall. The L-plate component has a continuous sliding groove matching the sliding column. The sliding column is limited within the sliding groove. The cross plate of the L-plate component slides within the inner groove of the L-plate mother component. By changing the extension length of the L-plate component within the L-plate mother component, the width of the U-shaped opening of the limiting top support 5 can be adjusted, thereby increasing the adaptability of the limiting top support 5 to truss chords of different specifications. The L-plate mother component has multiple threaded holes, which are connected to one side wall of the inner groove. Limiting bolts 7 are installed in the threaded holes. The cross plate portion of the L-plate component is limited within the inner groove and is tightened and fixed to the L-plate mother component by the limiting bolts 7. After the extension and retraction length of the L-plate component is adjusted, the limiting bolt 7 is tightened to press the L-plate component against the limiting bolt 7, thereby fixing the L-plate component in the inner groove with the L-plate component. The limiting top support 5 is provided with a fastener 6 that is movably set on the vertical plate of the limiting top support 5 and is used to clamp and fix the limiting top support 5 when it is moved to a predetermined position. The fastener 6 is a fastening bolt. The fastener 6 is threadedly connected to the vertical plate of the limiting top support 5 on one side of the vertical plate of the limiting top support 5. The end of the fastener 6 in the U-shaped structure opening of the limiting top support 5 is provided with a rubber pad 8. By tightening the fastener 6, the limiting top support 5 is fixed to the truss chord, preventing the truss chord from moving during the assembly process.

[0019] This utility model uses two horizontally arranged base rods, multiple upright supports on the base rods, and multiple supporting beams connected between the two base rods to form a jig for the horizontal assembly and welding of short sections of steel trusses. The structure is stable and reliable. By setting a limiting top support on the top of the upright support, and fasteners on the limiting top support, it is easy to fix the upper supporting chord to the jig, avoiding welding obstacles caused by the movement of the nodes of the truss to be assembled during the welding and assembly process, and improving the qualification rate of truss assembly.

[0020] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0021] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A short-section horizontal assembly frame for roof steel trusses, characterized in that: The system includes two horizontally arranged base rods (1), multiple column supports (2) spaced apart on the base rods (1), and multiple support beams (3) connecting the two base rods (1). The two base rods (1) are arranged side by side. The bottom ends of the column supports (2) are welded and fixed to the top surface of the base rods (1). The two ends of the support beams (3) are welded and fixed to the two base rods (1) respectively. Column diagonal braces (4) are provided between the base rods (1) and the column supports (2). The column diagonal braces (4) are located on both sides of the column supports (2). The column diagonal brace (4), the base rod (1), and the column support (2) are arranged in a triangular structure. The two ends of the column diagonal brace (4) are welded and fixed to the bottom rod (1) and the belly of the column support (2) respectively. The top of the column support (2) is provided with a limiting top support (5). The limiting top support (5) is a U-shaped plate structure. The limiting top support (5) is provided with a fastener (6). The fastener (6) is a fastening bolt. The fastener (6) is threadedly connected to the vertical plate of the limiting top support (5) and the vertical plate on one side of the limiting top support (5).

2. The roof steel truss short-section horizontal assembly jig according to claim 1, characterized in that: The limiting top support (5) includes an L-plate sub-component and an L-plate mother-component. The horizontal plate end of the L-plate mother-component is provided with an inner groove. The horizontal plate of the L-plate sub-component is slidably connected in the inner groove of the L-plate mother-component. The L-plate mother-component is provided with multiple threaded holes. The threaded holes are connected to one side wall of the inner groove. A limiting bolt (7) is provided in the threaded holes.

3. The roof steel truss short-section horizontal assembly jig according to claim 2, characterized in that: The spacing between adjacent support beams (3) is twice the spacing between adjacent column supports (2).

4. The roof steel truss short-section horizontal assembly jig according to claim 3, characterized in that: Both the column support (2) and the support beam (3) are I-beams.

5. The roof steel truss short-section horizontal assembly jig according to claim 1, characterized in that: The connection position between the column brace (4) and the column support (2) is at 1 / 2 to 2 / 3 of the height of the column support (2).

6. A roof steel truss short-section horizontal assembly jig according to any one of claims 1 to 5, characterized in that: The fastener (6) has a rubber pad (8) at its end inside the U-shaped opening of the limiting top support (5).

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