Horticultural house with end-face truss beam

Gable truss beams in greenhouses distribute wind pressure across three points, reducing the need for larger or more gable columns and guide beams, thus lowering construction costs while maintaining structural integrity.

JP2025134940AActive Publication Date: 2025-09-17横山 寿彦
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Patent Information

Application Number
JP2025106949
Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
Filing Date
2025-06-25
Publication Date
2025-09-17
Estimated Expiration
2043-06-28

AI Technical Summary

Technical Problem

Multi-story greenhouses for horticulture face challenges in reducing construction costs while maintaining structural strength, particularly on the gable side, where gable posts and studs are often enlarged or increased in number, and additional cultivation components like guide beams add to the expense.

Method used

The installation of gable truss beams horizontally across the gable face, with inner and outer chords and a lattice forming continuous triangles, absorbs wind pressure at the center of the columns, transferring the load to three points instead of two, allowing for smaller or fewer gable columns and reducing the need for guide beams.

Benefits of technology

This configuration reduces the load on gable columns by half, enabling the use of smaller diameter columns or fewer posts, and doubles as guide beams, thereby cutting costs without compromising strength or functionality.

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Abstract

To provide a horticultural house with an end-face truss beam, which is capable of resisting wind pressure acting from the end-face direction of a connective horticultural house, which can also serve as a training beam, and which allows reduction of building costs.SOLUTION: A horticultural house with an end-face truss beam 8 is provided, wherein, below the valley portion of the end face of a connective house, an outer chord 8a of the end-face truss beam 8 is provided in the horizontal direction along the entire width of an end face 9 in contact with end columns 6, an inner chord 8b is disposed parallel to the outer chord 8a, and lattices 8c are arranged between the outer chord 8a and the inner chord 8b so as to form one or more consecutive triangles, symmetrically on both sides from the ridge center toward the valley and the sides, thus configuring the structure of the end-face truss beam 8 relative to the end face.SELECTED DRAWING: Figure 1
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Description

[Technical Field]

[0001] This relates to a gardening greenhouse. [Background technology]

[0002] Due to the rising cost of multi-story greenhouses for horticulture, cost reductions have become more necessary than ever, but there is also a demand for cost reductions without sacrificing strength. To achieve this, gable posts and studs are erected on the gable side, running from the foundation to the roof. To increase strength, the gable posts and studs are typically made larger and more numerous. Furthermore, in many cases, components for cultivation, such as guide beams and guide beam hojo, are installed on the gable side, which is included in the cost.

[0003] The skeletal structure of the multi-story agricultural greenhouse described in Patent Document 1 consists of truss beams installed between the columns in the width direction, and gable members above them that form a mountain shape at the top.This structure is designed to support the load from above that is applied to the gable members on the two roof surfaces installed on top of the truss beams, but it is not designed to withstand forces from the gable surfaces that are parallel to the ground. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Utility Model Registration No. 3239681 Summary of the Invention [Problem to be solved by the invention]

[0005] The gable structure of multi-story greenhouses for horticulture, designed to withstand wind pressure from the gable side, has gable posts and studs that run from the foundation to the roof, with no reinforcement between the posts. To increase strength, the gable posts and studs have been made larger or more numerous, a simple and easy-to-understand approach. However, reducing the construction costs of the gable side of a greenhouse requires a method other than the one described above. Furthermore, the gable side is often fitted with necessary cultivation components, such as guide beams and guide beam soffits, at regular intervals to act as walkways, but these add to the construction costs. [Means for solving the problem]

[0006] This invention installs the outer chords of gable truss beams horizontally across the entire width of the gable face below the valley of the gable face of a linked greenhouse, in contact with the gable posts, and installs inner chords horizontally and parallel to the outer chords. A lattice is placed between the outer and inner chords evenly on both sides, from the center of the ridge to the valley side and on both sides of the outside, forming one or more continuous triangles. This creates a gable truss beam structure for the gable face, and by allowing the wind pressure on the gable posts to be absorbed by the middle of the posts, the strength of the gable face can be increased without increasing the size or number of posts or studs. Furthermore, if the position of the gable truss beams relative to the gable face is installed at the same height as the aisle width and the height of the guide beam, they will perform the same function as the guide beam, and in terms of strength, the gable truss beam structure will be greater than the square length of the guide beam. [Effects of the Invention]

[0007] As mentioned above, by constructing a truss beam structure that is horizontally and parallel to the gable columns across the entire width of the valley floor (hereafter referred to as "gable truss beams"), wind pressure on the gable columns is also absorbed at the center of the columns. This force is then transferred through the girder beams to which the gable truss beams are attached, connecting the valley columns, side columns, girder, and column braces to the entire house in the girder direction. This means that the force that the gable columns previously received at two points (top and bottom) can now be absorbed at three points (top, middle, and bottom). This halves the load on the gable columns, making it possible to use smaller diameter gable columns or reduce their number. Furthermore, by matching the width of the gable truss beams to the width of the aisle and the height to the height of the guide beams, they can be used as guide beams as well. They also serve as a base to protect against wind pressure from the diagonal direction on the gable. This dual use reduces the number of guide beams and the base beam base length, further reducing costs. [Brief explanation of the drawings]

[0008] [Figure 1] This is a diagram of a row house with the gable truss beams of the present invention installed. [Figure 2] This is a diagram of a row house in which a guide beam and guide hoist are installed in a conventional house. DETAILED DESCRIPTION OF THE INVENTION

[0009] At the top of the gable face 9 of the linked house near the valley, a gable face truss beam 8 is placed on the gable face 9 in the gable (horizontal) direction across the entire width of the gable face 9 of the linked house. The gable face truss beam 8 is attached by connecting or contacting the outer chords 8a to the valley gable column 3, side gable column 2, gable column 6, and gable intermediate column 7, and an appropriate number of lattices 8c are placed between the inner chords 8b, which are placed at a fixed parallel interval from the outer chord 8a, with an inclination of 30 to 75 degrees from the center of the frontage to the valley and side, forming one or more continuous triangles on both sides, forming the gable face truss beam 8, which receives the wind pressure acting on the gable face 9 of the house at the middle of the house height and transmits that force from the valley girder beam 5 to the entire house through the girders. Furthermore, the gable truss beams 8 need to be of a width and height that do not obstruct passage, and a height that is suitable for attaching the training wires (not shown) for cultivation purposes, but even if they are made higher, they do not have to be the same height as the training poles (not shown) as long as the tops of the training poles (not shown) are fastened to the inner chords 8b of the gable truss beams 8 and the training wires are laid from the middle of the training poles. Also, the width does not have to be the same as the aisle width. [Example]

[0010] An embodiment will be described below with reference to the attached drawing 1. Reference numeral 1 denotes the main body of the house, in which side gable posts 2, valley gable posts 3, and side posts 2b and valley posts 3b are erected at regular intervals in the depth direction. Next, valley girders 4 are attached to the top of each post to connect them in the depth direction. Beams 10 are attached to each post to connect them in the width direction of the house. Next, roof arches 11 are attached at regular intervals from the gable face 9, and ridges 12 are fixed and attached to the tops of the roof arches 11 so that the spacing between the roof arches 11 is uniform. After the roof work is completed, gable posts 6 and gable studs 7 are erected along the gable face 9. At the second-to-second interval from the side gable post 2 or valley gable post 3 on the gable face of each column row in the depth direction, valley girder beams 5 are installed under the valley girder 4. The valley girder beams are connected to or in contact with the side gable posts 2, valley gable posts 3, gable posts 6, and gable studs 7, and gable truss beams 8 are placed. The outer chords 8a of the gable truss beam 8 are attached by connecting them to or making contact with the side gable posts 2, valley gable posts 3, gable posts 6, and gable studs 7, and an appropriate number of lattices 8c are arranged and combined to form a continuous triangle between the outer chords 8a and the inner chords 8b, which are placed at regular intervals from the outer chords 8a, to form the gable truss beam 8. As described above, the gable truss beam 8 is assembled last, but just as the effects and results are the same even if the intermediate beams 10 are installed before the roof arch 11 is installed, the effects and results are the same even if the assembly order is changed. [Explanation of symbols]

[0011] 1 House body 2 side gable pillar 2b side pillar 3 Valley Gable Pillar 3b Valley pillar 4 Valley beam 5 Valley girder beam 6 Gable pillar 7 Gable post 8 Truss beam on the gable 8a outer string 8b inner string 8c Lattice 9 Wife Face 10 beams 11 Roof Arch 12 buildings 13 Valley 14 Side shoulder 15 Attractive beam 16. Invitation Hojo

Claims

[Claim 1] A horticultural greenhouse with truss beams on its gable side has an outer chord (8a) that is approximately horizontal to the ground from the gable side (9) below the valley portion (13) and side shoulder portion (14), and the outer chord (8a) is provided in contact with the valley end pillar (3), side end pillar (2), end pillar (6) and end stud (7), and an inner chord (8b) is provided parallel to the outer chord (8a), and lattices (8c) are arranged between the outer chord (8a) and the inner chord (8b) so as to form two or more consecutive triangles between the side end pillar (2) and the valley end pillar (3) and between the next valley end pillar (3).

Citation Information

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