Fixation structure for tight frame

Abstract

To provide a fixation structure for a tight frame such that the tight frame can be fixed to a receiving beam without requiring welding work through simple work using a fixing material.SOLUTION: A fixation structure 1 for a tight frame comprises: a receiving beam 10; a tight frame 20 comprising a belt-like plate material continuously formed in the longitudinal direction into a substantially hat shape made up of an upper side 22, two lower sides 21 located on both sides below the upper side 22, and two connection sides 23 connecting the upper side 22 and the two lower sides 21; and a belt-like or rope-like fixing material 30, wherein the tight frame 20 is located on a top surface 11 of the receiving beam 10 along the length direction of the receiving beam 10, and the fixing material 30 is wound around the outer periphery of the receiving beam 10 to restrain the lower sides 21 to the top surface 11 of the receiving beam 10.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a fixing structure for a tight frame, and more particularly to a fixing structure for a tight frame that can fix the tight frame to a support beam through simple work using fixing materials without requiring welding work. [Background technology]

[0002] BACKGROUND ART In large buildings such as warehouses and factories, folded-plate roofs with a concave-convex structure made by folding steel plates are used as roof structures with excellent strength and durability. Folded-plate roofs come in three types: overlap type, seam-fastened type, and interlocking type, and are selected depending on the design of the building and the required durability (Non-Patent Document 1). The overlapping type is a construction method in which two roofing materials are overlapped and attached to bolts attached to the tight frame and then fastened with nuts, resulting in excellent cross-sectional strength and durability. The seam fastening type is a construction method in which fastening fittings attached to the tight frame are sandwiched between the edges of two roofing materials and then wrapped and fastened with an electric seamer, resulting in excellent waterproofing, easy construction, and economical as no bolts are used. The interlocking type is a construction method in which two roofing materials are fastened to the tight frame with fixing fittings and a cap is fitted over the joint, resulting in excellent design as no bolts protrude above the roofing materials. The overlap, seam, and interlocking structures also use a tight frame, which is made by bending strips of sheet metal to form a continuous, roughly hat-shaped structure when viewed from the front, to secure the roofing material to the support beams. The tight frame functions to support and distribute snow loads, wind loads, etc., applied to the roofing material, so the fastening of the tight frame has a significant impact on the durability and safety of the building. In conventional folded-plate roofs, the bottom edge of the tight frame is welded to the top surface of the support beam, which is made of structural steel (Patent Document 1). In detail, the tight frame is installed on the support beam, and the bottom edge of the tight frame is arc-welded to the top surface of the support beam. After welding, the slag is removed, and the rust-preventive coating that was burned off by the arc heat is repainted. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2010-71039 [Non-patent literature]

[0004] [Non-Patent Document 1] JIS (Japanese Industrial Standards) A6514 "Metal folded plate roof components" Summary of the Invention [Problem to be solved by the invention]

[0005] The conventional technology has the following problems. <1> Work such as welding tight frames, removing slag, and repainting anti-rust coatings must be done while moving around in narrow spaces on support beams and temporary scaffolding, resulting in very poor work efficiency. <2> Welding requires high technical skills and experience, and poor quality welding can lead to poor welding or material breakage, which can result in a lack of strength in the roof structure. <3> If there is a misalignment in the welding position, it cannot be corrected, which can lead to poor alignment between the tight frames, making it impossible to connect the roofing material to the tight frames, or causing distortion in the roofing material, which can lead to creaking boards or leaks. <4> Because the quality of welding depends on the skill of the worker, there is a risk that maintaining construction quality will become difficult due to a shortage of skilled workers caused by the declining birthrate and aging population. <5> Welding cannot be performed in bad weather such as rain or strong winds, so the work is dependent on the weather and there is a risk of delays in the process. <6> As the work is carried out at high places such as on beams, with both hands holding the handheld device and the arc welding machine, there is room for improvement in terms of work safety. <7> If the roofing material or tight frame is deformed due to the effects of a typhoon or earthquake, the tight frame cannot be removed from the support beam unless it is cut by welding, and the existing tight frame cannot be reused.

[0006] An object of the present invention is to provide a fixing structure for a tight frame that solves the above-mentioned problems of the conventional technology. [Means for solving the problem]

[0007] The fixing structure of the tight frame of the present invention comprises a support beam, a tight frame made of a strip-shaped plate material that is continuously formed in an approximately hat shape in the longitudinal direction of the plate material, and is composed of an upper edge, two lower edges located on both sides below the upper edge, and two connecting edges that connect the upper edge and the two lower edges, and a strip-shaped or cord-shaped fixing material, wherein the tight frame is positioned on the top surface of the support beam along the longitudinal direction of the support beam, and the fixing material is wrapped around the outer periphery of the support beam to restrain the lower edge to the top surface of the support beam.

[0008] In the fastening structure of the tight frame of the present invention, the fastening material may be a glass fiber tape with the adhesive surface facing inward.

[0009] The fastening structure of the tight frame of the present invention may be such that the fastening material is a belt having a belt body and a buckle capable of fastening the belt body.

[0010] In the fixing structure of the tight frame of the present invention, the width of the fixing material may be approximately equal to the length of the lower side in the extending direction.

[0011] The fixing structure of the tight frame of the present invention may include a support plate arranged on the lower edge, and the fixing material may wrap around the outer periphery of the support beam together with the support plate, and may restrain the lower edge to the top surface of the support beam via the support plate. [Effects of the Invention]

[0012] The fastening structure of the tight frame of the present invention has at least one of the following effects compared to the above structure. <1> The Tite Frame can be securely fixed to the support beam by simply restraining the support beam along with the bottom edge of the Tite Frame with fixing material. Furthermore, since no slag is generated by welding and the anti-rust coating is not damaged by heat, there is no need for additional anti-rust treatment. This results in extremely high work efficiency. <2> The fixing material can be easily fixed by simply wrapping it around the support beam, so construction quality can be maintained consistently regardless of the skill level of the workers. <3> Since the fixing position of the tight frame can be finely adjusted after temporary fastening, the installation precision of the roofing material is high, and it is possible to prevent cracking of the boards and leaks due to distortion of the roofing material. <4> The work is not affected by rain or wind, so the process is less affected by the weather. <5> Work can be carried out without bulky equipment such as arc welding machines or handheld masks, making the work safer. <6> By removing the fixing material, the tight frame can be removed from the support beam without damaging the components, facilitating maintenance and replacement of the roof material and tight frame. [Brief explanation of the drawings]

[0013] [Figure 1] Illustration of the tight frame fixing structure [Figure 2] Illustration of fixing material [Figure 3] Explanatory diagram of Example 2 DETAILED DESCRIPTION OF THE INVENTION

[0014] The fixing structure of the tight frame of the present invention will be described in detail below with reference to the drawings. [Example]

[0015] <1> Tight frame fixing structure (Figure 1) The tight frame fixing structure 1 of the present invention (hereinafter simply referred to as "fixing structure 1") is a structure for fixing a tight frame 20 onto a support beam 10 in the roof structure of a building A. The fixing structure 1 includes at least a support beam 10, a tight frame 20, and a fixing member 30. The fixing structure 1 has one feature in that the lower edge 21 of the tight frame 20 is restrained and fixed to the support beam 10 by the fixing material 30 wound around the support beam 10.

[0016] <1.1>Buildings The building A relating to the fixed structure 1 is mainly a large building such as a warehouse or factory. However, it is not limited to these, and includes all structures in which a tight frame 20 is fixed onto a support beam 10 in a half-height roof or similar roof structure, such as a parking lot, bicycle parking lot, automobile repair shop, station building, gymnasium, etc. In the building A, a roofing material 40 made of a Galvalume steel sheet (registered trademark) or the like is placed on the tight frame 20. In detail, the roof material 40 is supported on the upper part of the tight frame 20, and the roof material 40 is fixed to the upper side 22 of the tight frame 20 using bolts or fitting structures provided on the upper side 22 of the tight frame 20. However, since the attachment of the roof material 40 is not the gist of the present invention, it will not be described in detail here.

[0017] <2> beam support The support beam 10 is a beam material that supports the roof material 40 and the load of the roof material 40. The support beam 10 has a flat top surface 11 on which a tight frame 20 is installed. In this example, the support beam 10 is an H-shaped steel beam made up of two flanges connected by a web, with the flanges arranged on the top and bottom surfaces. However, the support beam 10 is not limited to H-shaped steel, but may be I-shaped steel, T-shaped steel, channel steel, angle steel, etc. The point is that it is sufficient if it has a top surface 11.

[0018] <3> Tight Frame The tight frame 20 is a member that supports the roof material 40. The tight frame 20 is formed by bending a strip-shaped metal plate along the longitudinal direction, and forming a generally hat-shaped structure in a front view continuously in the longitudinal direction. In detail, each hat shape of the tight frame 20 has one upper edge 22, two lower edges 21 located on both sides below the upper edge 22, and two connecting edges 23 connecting the upper edge 22 and the two lower edges 21, and the lower edge 21 is shared with adjacent hat shapes. In this example, hot-dip galvanized steel sheet (JIS G3302) is used as the tight frame 20. However, the material of the tight frame 20 is not limited to this, and hot-dip zinc-5% aluminum alloy plated steel sheet (JIS G3317), hot-dip 55% aluminum-zinc alloy plated steel sheet (JIS G3321), etc. may also be used. The upper surface of the upper side 22 is provided with bolts and fitting structures for fixing the roof material 40.

[0019] <4> Fixing material The fixing material 30 is a member that fixes the tight frame 20 onto the support beam 10. The fixing member 30 is made of a band-like or cord-like body that can be wound around the outer periphery of the support beam 10. In this example, the fixing material 30 is a glass fiber tape wound around the support beam 10 with the adhesive side facing inward. The glass fiber tape is an adhesive tape made by intertwining glass fibers, and has excellent impact resistance, holding power, weather resistance, and high tensile strength. Furthermore, the tight frame 20 can be easily fixed by simply adhering the tip to the support beam 10 and wrapping it around the support beam 10, making it suitable as the fixing material 30. In this example, the width of the glass fiber tape is set equal to the length of the lower side 21 in the extending direction.

[0020] <4.1> Other types of fixing materials (Fig. 2) The fixing material 30 is not limited to the glass fiber tape. When the fixing material 30 is a strip-shaped body, for example, a belt, a fiber adhesive tape, a resin cable tie, a stainless steel cable tie, or the like can be used. When the fixing material is a cord-like body, for example, iron wire, wire rope, fiber rope, etc. can be used. The fixing material 30 may also be provided with fastening means 30a for tightening the material after being wrapped around the support beam 10 to strengthen the restraint. For example, if the fastening material 30 is a belt, the fastening means 30a is a buckle that can tighten the support beam 10 by pulling the belt body. Also, for example, if the fastening material 30 is a cable tie, the fastening means 30a is a head through which a tail (chevron) passes.

[0021] <5> Fixing the tight frame The tight frame fixing structure 1 of the present invention fixes the tight frame 20, for example, by the following procedure. The longitudinal direction of the tight frame 20 is arranged in the longitudinal direction of the support beam 10, and the tight frame 20 is erected on the top surface 11 of the support beam 10. The tip of the glass fiber tape (fixing material 30) is adhered to the support beam 10 at the position of the lower edge 21 of the tight frame 20, and the glass fiber tape is wrapped around the outer periphery of the support beam 10 from above the lower edge 21, thereby fixing the tight frame 20 to the support beam 10. The number of times the glass fiber tape is wrapped around is optional, but for example, the tight frame 20 can be temporarily fastened around the support beam 10 once, and the temporary fastening position can be fine-tuned while checking that it matches the tight frame 20 mounting positions of the other support beams 10, and after the mounting position has been confirmed, the tape can be wrapped around and fixed several times, allowing for flexible construction that matches the overall arrangement of the roof material 40. In this example, the width of the glass fiber tape is equal to the length of the lower edge 21 in the extension direction, so that the side edge of the glass fiber tape holds down the connecting edge 23 and restricts the widthwise swing of the tight frame 20, thereby improving the positioning effect of the tight frame 20. [Example]

[0022] [Example in which the fixing material has a bearing plate] In this example, the fixing structure 1 comprises a bearing plate 50 (FIG. 3). The support plate 50 is made of a surface material such as an iron plate or a synthetic resin plate, and has a length that spans the lower side 21 in the width direction. In this example, with the tight frame 20 erected on the top surface 11 of the support beam 10, a support plate 50 is placed across the lower edge 21 in the width direction, and a fixing material 30 is wrapped around the support beam 10 from above the support plate 50. In this example, the tightening force of the fixing material 30 causes the bottom surface of the support plate 50 to press the top surface of the lower edge 21 into a flat plate shape, so that the tight frame 20 can be firmly fixed even if the fixing material 30 is made of a highly flexible material such as glass fiber tape or belt. [Explanation of symbols]

[0023] 1. Tight frame fixing structure 10 Support beam 11 Top 20 Tight Frame 21 Bottom 22 Top 23 Connecting Edges 30 Fixing material 30a Fastening means 40 Roofing Materials 50 bearing plate A Building

Claims

1. In a roof structure of a building, a tight frame fixing structure for fixing a tight frame supporting a roof material onto a support beam, With support beams, A tight frame is formed by a strip-shaped plate material, and the tight frame has an approximately hat-shaped configuration consisting of an upper side, two lower sides located on both sides below the upper side, and two connecting sides connecting the upper side and the two lower sides, and is continuously formed in the longitudinal direction of the plate material. a belt-shaped or cord-shaped fixing material; The tight frame is positioned on the top surface of the support beam along the longitudinal direction of the support beam, The fixing material is wound around the outer periphery of the support beam and restrains the lower side to the top surface of the support beam. Tight frame fixed structure. The fixing structure of claim 1.

2. The fixing material is a glass fiber tape with the adhesive side facing inward. The fixing structure of claim 1.

3. The fixing member is a belt having a belt body and a buckle capable of fastening the belt body. The fixing structure of claim 1.

4. The width of the fixing member is approximately equal to the length of the lower side in the extending direction. The fixing structure of the tight frame according to claim 2 or 3.

5. A support plate is provided across the lower side in the width direction, The fixing material is wound around the outer periphery of the support beam together with the support plate, and the lower side is restrained to the top surface of the support beam via the support plate. The fixing structure of claim 1.

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