Construction and civil engineering lumber and connecting structures using lumber

Abstract

To propose a board material for construction and civil engineering that can construct interior / exterior boards for exterior walls, interior walls, ceilings, or for civil engineering and infrastructure works, etc. with high deformation resistance at joints and good aesthetic appearance, and a connecting structure using the board material.SOLUTION: In a board for construction and civil engineering applications with a board body having a receiving joint at one end in the width direction and an insertion joint at the other end in the width direction, the board body is composed of a base wall portion and a pair of side walls, and the receiving joint is composed of a receiving body wall portion, a fixed wall portion, and a return wall portion. The insertion joint has an insertion body wall portion and a cantilever tongue, and the receiving joint is provided with an insertion space of open-width that forms a narrow groove extending along the longitudinal direction of the board body in an overlapped state with the insertion joint, and the cantilever tongue forms a narrow groove in an overlapped state with the receiving joint, or the insertion body wall portion has an insertion length to contact a receiving body wall portion of another board for construction or civil engineering.SELECTED DRAWING: Figure 1

Description

TECHNICAL FIELD

[0001] The present invention relates to a metallic architectural and civil engineering plate material suitable for use in constructing exterior walls, interior walls, ceilings of buildings, or interior and exterior panels for civil engineering and infrastructure works, and a connection structure using the plate material.

BACKGROUND ART

[0002] As a conventional architectural and civil engineering plate material used when constructing exterior walls, interior walls, ceilings of buildings, or interior and exterior panels for civil engineering and infrastructure works, there is known, for example, the angular corrugated siding disclosed in Patent Document 1, which has a structure in which a lower seam portion is provided at one end in the width direction of the plate material, an upper seam portion is provided at the other end in the width direction, and the upper seam portion is fitted into the lower seam portion to join the plate materials together.

[0003] By the way, conventional architectural and civil engineering plate materials are configured such that the upper seam portion includes a wide top plate raised to a level equivalent to the outer surface of the siding body, and a relatively large space is formed on the inner side thereof, so there is a concern that when an excessive wind load (negative pressure, positive pressure, etc.) acts on the plate material, the upper seam portion will lift up or undergo opening deformation, and the joint of the plate materials will be easily released.

PRIOR ART DOCUMENTS

PATENT DOCUMENTS

[0004]

PATENT DOCUMENT 1

SUMMARY OF THE INVENTION

PROBLEMS TO BE SOLVED BY THE INVENTION

[0005] An object of the present invention is to propose an architectural and civil engineering plate material and a connection structure using the plate material, in which shape deformation such as lifting or opening of the plate material at the joint portion is suppressed, and a wall surface with good aesthetic appearance can be finished.

MEANS FOR SOLVING THE PROBLEMS

[0006] The present invention relates to a building and civil engineering panel comprising a panel body having a receiving joint at one end in the width direction and a slip-in joint at the other end in the width direction, wherein the slip-in joints of other adjacent building and civil engineering panel materials are inserted into the receiving joints of the panel body to connect them, and the slip-in joints of the panel body are inserted into the receiving joints of other adjacent building and civil engineering panel materials to connect them, thereby connecting the panel materials to each other to construct exterior walls, interior walls, ceilings, or interior and exterior panels of civil engineering and infrastructure works, wherein the panel body has its back facing downwards at the center in the width direction The structure comprises a base wall section that can be positioned close to or in contact with the base material, and a pair of side wall sections, one end of which is connected to the edge of the base wall section via a bent section, and the other end of which is connected to a receiving joint and an insert joint, respectively. The receiving joint comprises a receiving body wall section that is cantilevered to the edge of one of the pair of side wall sections, a fixed wall section that is cantilevered to the free end of the receiving body wall section via a narrow groove and can contact the base material, and an insert joint for other building and civil engineering boards that is connected to the free end of the fixed wall section and works in cooperation with the receiving body wall section and the fixed wall section to insert into the inside. The insert joint has a return wall portion that demarcates and forms an insertion space, and the insert joint has an insert body wall portion that is cantilevered to the other side wall portion of the pair of side wall portions, and a cantilever tongue portion that is connected to the free end of the insert body wall portion in a direction along the fixed wall portion, and at least its tip portion is inserted into the receiving joint of another building or civil engineering board material with springback, and the insertion space is such that when the insert joint of the other building or civil engineering board material is inserted into the receiving joint and placed in an overlapping state, the insertion of the other building or civil engineering board material The building and civil engineering board is characterized in that, when the cantilevered tongue is inserted into the receiving joint of another building and civil engineering board and placed in an overlapping state, it forms a narrow groove extending along the longitudinal direction of the board between the inserting joint of the other building and civil engineering board and the inserting body wall, or the inserting body wall has an insertion length that abuts against the receiving body wall of the other building and civil engineering board.

[0007] In a building and civil engineering panel having the above configuration, it is preferable that the side wall portion extends along the longitudinal direction of the panel body and has at least one bent portion that bends the side wall portion in the width direction of the panel body; the insert body wall portion has a projection that, when the insert joint is inserted into the receiving joint of the other building and civil engineering panel, works in conjunction with the receiving joint of the other building and civil engineering panel to prevent the insert joint from being pulled out of the receiving joint; the cantilevered tongue has a projection that, when the insert joint of the other building and civil engineering panel is inserted into the receiving joint, works in conjunction with the insert joint of the other building and civil engineering panel to prevent the insert joint from being pulled out of the receiving joint; and furthermore, the panel body has a cross-sectional shape in which the bottom side is concave and the bottom side is the surface of an exterior wall, interior wall, ceiling, or interior and exterior panel for civil engineering and infrastructure work.

[0008] Furthermore, the present invention relates to a connecting structure using building and civil engineering boards, comprising a plurality of boards having the above configuration, characterized in that the boards are linked together by inserting a joint of one building or civil engineering board into a receiving joint provided at one end of the board body in the width direction, and by inserting a joint provided at the other end of the board body in the width direction into a receiving joint of another building or civil engineering board. [Effects of the Invention]

[0009] According to the present invention, at the joint portion of the board material, the board material is placed in an overlapping state, and a narrow groove is formed along the longitudinal direction of the board material, or there is no joint, so even if an excessive load is applied, the board material will not easily lift up or undergo deformation such as opening up.

[0010] Furthermore, according to the present invention, since the main body of the plate material is composed of a base wall portion and a pair of side wall portions, the exterior walls, interior walls, ceilings of buildings, or interior and exterior panels of civil engineering and infrastructure works can be finished with an exterior surface that is rich in variation, like an aurora (curtain of light). [Brief explanation of the drawing]

[0011] [Figure 1] This is a schematic external perspective view showing an embodiment of a building and civil engineering panel according to the present invention. [Figure 2] Figure 1 is a front view of the building and civil engineering panel material shown. [Figure 3] Figure 2 shows the rear view of the building and civil engineering panel material. [Figure 4] Figure 2 is a plan view of building and civil engineering panel materials. [Figure 5] Figure 2 is a bottom view of the building and civil engineering slab material shown. [Figure 6] Figure 2 is a right side view of the building and civil engineering panel material shown. [Figure 7] Figure 2 is a left side view of the building and civil engineering panel material shown. [Figure 8] This figure shows the main parts of a connecting structure constructed using building and civil engineering board materials according to the present invention. [Figure 9] This is an external perspective view of a connecting structure constructed using building and civil engineering panel materials in accordance with the present invention. [Figure 10] This diagram shows the method for fixing building and civil engineering boards according to the present invention. [Figure 11] This diagram shows the method for fixing building and civil engineering boards according to the present invention. [Figure 12] (a) and (b) are diagrams showing the main parts of other embodiments of building and civil engineering board materials according to the present invention. [Figure 13] (a) and (b) are diagrams showing the main parts of other embodiments of building and civil engineering board materials according to the present invention. [Figure 14] (a) and (b) are diagrams showing the main parts of other embodiments of building and civil engineering board materials according to the present invention. [Figure 15] Figures (a) to (d) schematically show other embodiments of building and civil engineering boards according to the present invention. [Modes for carrying out the invention]

[0012] Hereinafter, the present invention will be described in more detail with reference to the accompanying drawings. Figure 1 is an external perspective view schematically showing an embodiment of the plate material for construction and civil engineering according to the present invention. Figure 2 is a front view of the plate material for construction and civil engineering shown in Figure 1, Figure 3 is a rear view of the plate material for construction and civil engineering shown in Figure 2, Figure 4 is a plan view of the plate material for construction and civil engineering shown in Figure 2, Figure 5 is a bottom view of the plate material for construction and civil engineering shown in Figure 2, Figure 6 is a right side view of the plate material for construction and civil engineering shown in Figure 2, and Figure 7 is a left side view of the plate material for construction and civil engineering shown in Figure 2. Figure 8 is a view showing the main part of a connection structure constituted using the plate material for construction and civil engineering according to the present invention, and Figure 9 is an external perspective view of the connection structure constituted using the plate material for construction and civil engineering according to the present invention.

[0013] With regard to the plate material for construction and civil engineering according to the present invention, the insertion joint of another adjacently arranged plate material for construction and civil engineering is inserted into and engaged with a receiving joint provided at one end in the width direction of the plate material main body, while the insertion joint of the plate material main body is inserted into and engaged with the receiving joint of another adjacently arranged plate material for construction and civil engineering, so that the plate materials are connected to each other to construct the outer wall, inner wall, ceiling of a building, or interior and exterior panels for civil engineering and infrastructure work, etc. In constructing the outer wall, inner wall, ceiling of a building, or interior and exterior panels for civil engineering and infrastructure work, etc., it is premised that a plurality of plate materials for construction and civil engineering having the same configuration are used.

[0014] In the present invention, the other adjacently arranged plate material for construction and civil engineering and another adjacently arranged plate material for construction and civil engineering refer to plate materials for construction and civil engineering having the same configuration as the plate material for construction and civil engineering according to the present invention.

[0015] The plate material for construction and civil engineering is manufactured by using a single plate material made of a plated steel sheet, stainless steel sheet, aluminum sheet, copper sheet, or a painted or coated metal sheet thereof, with a thickness of about 0.5 to 0.8 mm, and appropriately subjecting it to forming processing such as press forming or roll forming. The height dimension (peak height), width dimension (effective working width), and length can be arbitrarily modified.

[0016] In Figures 1-9, reference numeral 1 denotes the plate body, shown in an example with a rectangular shape; 2 denotes a receiving joint provided at one end of the plate body 1 in the width direction; and 3 denotes a slip-on joint provided at the other end of the plate body 1 in the width direction.

[0017] The main body of the board material 1 consists of a base wall portion 1a, which can be brought close to or in contact with a base material (furring strips, boards, etc.) at the center in the width direction on its back surface (flat side), and a pair of side wall portions 1b, one end of which is connected to the edge of the base wall portion 1a via a bent portion 4, and the other end of which is connected to a receiving joint 2 and a slip-in joint 3, respectively. In this embodiment, the base wall portion 1a is shown as an example in which the center of the base wall portion 1a in the width direction is located at the center of the main body of the board material 1 in the width direction, but the base wall portion 1a may also be an eccentric type in which the center of the base wall portion 1a in the width direction is offset from the center of the main body of the board material 1 in the width direction.

[0018] A pair of side wall sections 1b extend along the longitudinal direction of the main body of the plate material 1 and have bent sections K1 to K3 that bend the side wall sections 1b in the width direction of the main body of the plate material 1. Here, the main body of the plate material 1 is shown as an example of a two-rib type with a cross-sectional shape in which the bottom side is concave and the bottom side is used as the surface of an exterior wall, interior wall, ceiling, or interior and exterior panel for civil engineering and infrastructure works, but the building and civil engineering plate material of the present invention is not limited to the shape shown.

[0019] Furthermore, the receiving joint 2 is composed of a receiving body wall portion 2a cantilevered to the edge of the side wall portion 1b, a fixed wall portion 2b cantilevered to the free end 2a1 of the receiving body wall portion 2a via a narrow groove 5 arranged laterally and capable of contacting the base material, and a return wall portion 2c connected to the free end 2b1 of the fixed wall portion 2b. The receiving body wall portion 2a, the fixed wall portion 2b, and the return wall portion 2c work together to form an insertion space M into which an insertion joint 3' of another building or civil engineering board material S1 is inserted. The return wall portion 2c also functions as a flashing to prevent the intrusion of rainwater, etc. The insertion space M has a U-shaped cross-section and is set to an open width W that, when an insertion joint 3' of another building or civil engineering plate material S1 is inserted into the receiving joint 2, forms a narrow groove 6 that extends along the longitudinal direction of the plate material body 1 between the insertion joint 3' of the other building or civil engineering plate material S1 and the receiving body wall 2a. The return wall 2c can be hemmed at the tip to increase deformation strength.

[0020] Furthermore, the insert joint 3 has an insert body wall portion 3a that is cantilevered to the side wall portion 1b, and a cantilevered tongue portion 3b that is oriented along the fixed wall portion 2b and connected to the free end 3a1 of the insert body wall portion 3a. The cantilevered tongue portion 3b has at least its tip portion 3b1 located in the narrow groove 5 and is inserted into the receiving joint 2' of another building or civil engineering plate material S2 with springback at that portion. When the insert joint 3 is inserted into the receiving joint 2' of another building or civil engineering plate material S2, it forms a narrow groove portion 6 that extends along the longitudinal direction of the plate material body 1 between the insert joint 3' of the other building or civil engineering plate material S2 and the insert body wall portion 3a, or the insert body wall portion 3a has an insertion length L that abuts against the receiving body wall portion 2a' of the other building or civil engineering plate material S2.

[0021] To construct a connecting structure such as an exterior wall, interior wall, ceiling, or interior / exterior panel for civil engineering / infrastructure work using building and civil engineering paneling according to the present invention, as shown in Figure 8, the insertion joint 3 of the paneling body 1 is inserted into the receiving joint 2' of another building and civil engineering paneling S2 to connect them, while the insertion joint 3' of another building and civil engineering paneling S1 is inserted into the receiving joint 2 of the paneling body 1 to connect them. At this time, the fixed wall portion 2b' and the cantilevered tongue 3b of the receiving joint 2' of the other building and civil engineering paneling S2 are in an overlapping state, and the fixed wall portion 2b of the receiving joint 2 and the cantilevered tongue 3b' of the insertion joint 3' of the other building and civil engineering paneling S1 are in an overlapping state, so that even if excessive negative pressure is applied to the paneling, the paneling will not easily lift up at that point.

[0022] As shown in Figure 10, the main body of the board material 1 can be connected to each other by inserting the insert joint 3 into the receiving joint 2' of another building or civil engineering board material S2, driving screws B into the fixing wall portion 2b of the receiving joint 2 to fix it to the base material, and then inserting the insert joint 3' of another building or civil engineering board material S1. Alternatively, as shown in Figure 11, the insert joint 3 can be inserted into the receiving joint 2' of another building or civil engineering board material S2, inserting the insert joint 3' of another building or civil engineering board material S1 into the receiving joint 2, and driving screws B through the groove portion 6 to penetrate the insert joint 3' and the fixing wall portion 2b to fix it to the base material.

[0023] Figure 10 shows a non-exposed type in which the screw B is covered by the cantilevered tongue 3b' of the other building and civil engineering panel S1. This is aesthetically pleasing and suitable for constructing interior walls and ceilings of buildings. In the exposed type shown in Figure 11, in which the screw B is exposed on the surface of the cantilevered tongue 3b' of the other building and civil engineering panel S1, it is possible to increase the joint strength of the panel material and is suitable for constructing exterior walls of buildings, interior and exterior panels for civil engineering and infrastructure works, etc. In addition, a sealing member 7 made of EPDM (ethylene propylene) or the like can be provided between the fixed wall portion 2b and the cantilevered tongue 3b' to improve watertightness.

[0024] In the building and civil engineering panel according to the present invention, the insertion space M is set to an open width W such that when the insertion joint 3' of another building and civil engineering panel S1 is inserted into the receiving joint 2, a narrow groove 6 extending along the longitudinal direction of the panel body 1 is formed between the insertion joint 3' of the other building and civil engineering panel S1 and the receiving joint 3' of the other building and civil engineering panel S1. Furthermore, the cantilevered tongue 3b of the insertion joint 3, when inserted into the receiving joint 2' of another building and civil engineering panel S2, forms a narrow groove 6 extending along the longitudinal direction of the panel body 1 between the other insertion joint 3' and the insertion body wall 3a, or has an insertion length L such that the insertion body wall 3a abuts against the receiving body wall 2a' of the other building and civil engineering panel S2. As a result, the joint portion of the panel has high resistance to deformation and has the advantage of not undergoing shape deformation due to opening even when external forces such as wind loads are applied. The width of the groove 6 is preferably set to about 10 to 30 mm to facilitate the driving of screws B when an exposed type is applied in which the screws B are exposed on the surface of the cantilevered tongue piece 3b' of other construction and civil engineering board material S1. The depth of the groove 6 is preferably set to about 25 to 45 mm, and the ratio of the width to the depth of the groove 6 is preferably set to about 1.0 to 5.0.

[0025] Figures 12(a) and 12(b) show other embodiments of building and civil engineering panel materials according to the present invention, with their main components shown. The insertion body wall portion 3a can be provided with a projection 8 that, when the insertion joint 3 is inserted into the receiving joint 2' of another building or civil engineering panel material S2, is linked to the receiving joint 2' of the other building or civil engineering panel material S2 to prevent the insertion joint 3 from being pulled out of the receiving joint 2'. This increases the connection strength of the panel materials in a non-exposed type joint structure where the screw B is covered by the cantilevered tongue piece 3b. Note that such projection 8 may also be provided on the cantilevered tongue piece 3b.

[0026] Figures 13(a) and 13(b) show a bent-waist structure in which the return wall portion 2c is extended and its tip is bent toward the insertion body wall portion 3a' of the insertion joint 3' of other building and civil engineering panel material S1. With such building and civil engineering panel material, the water-stopping performance can be further enhanced.

[0027] Figures 14(a) and 14(b) show a structure in which the length of the cantilevered tongue 3b is shortened so that when the insert joint 3 is inserted into the receiving joint 2' of another building or civil engineering panel S2, the main wall portion 3a of the insert joint comes into contact with the main wall portion 2a' of the receiving part S2 of the other building or civil engineering panel S2. With such building or civil engineering panels, it is possible to construct exterior walls, interior walls, ceilings, or interior and exterior panels for civil engineering and infrastructure works without joints.

[0028] Figures 15(a) to 15(d) schematically show other embodiments of the building and civil engineering panel according to the present invention. Figure 15(a) is a single-peak type building and civil engineering panel with a straight-lined side wall portion 1b and a concave bottom surface of the panel body 1; Figure 15(b) is a three-peak type building and civil engineering panel with a side wall portion 1b bent by bending portions K1 to K5 and a concave bottom surface of the panel body 1; Figure 15(c) is a four-peak type building and civil engineering panel with a side wall portion 1b bent by bending portions K1 to K6 and a concave bottom surface of the panel body 1; and Figure 15(d) is a five-peak type building and civil engineering panel with a side wall portion 1b bent by bending portions K1 to K10 and a concave bottom surface of the panel body 1.

[0029] In the building and civil engineering panel material according to the present invention, the side wall portion 1b is arbitrarily bent by the bending portions K1 to K10, and the panel body 1 has a concave cross-sectional shape on the bottom side, so that even when negative pressure is applied, high load-bearing capacity can be expected due to the arch effect. Furthermore, by providing such a shape, the number of furring strips used to fix the building and civil engineering panel material can also be reduced. In particular, exterior walls, interior walls, ceilings, or interior and exterior panels for civil engineering and infrastructure works using the building and civil engineering panel material according to the present invention will have a varied finish resembling an aurora (a curtain of light).

[0030] In this invention, the use of building and civil engineering panels has been described as an example of constructing exterior walls, interior walls, ceilings, or interior and exterior panels for civil engineering and infrastructure works. However, they can also be used as roofing materials for roofing buildings. [Industrial applicability]

[0031] According to the present invention, lifting and deformation of the plate material at the joint is suppressed, and a building and civil engineering plate material and a connecting structure using that plate material can be provided that can construct an aesthetically pleasing exterior wall, interior wall, ceiling, or interior and exterior panels for civil engineering and infrastructure works. [Explanation of Symbols]

[0032] 1 Board body 1a Base wall section 1b Side wall section 2, 2' Successor 2a, 2a' Receiving part main body wall 2a1 free end 2b, 2b′ Fixed wall part 2b1 free end 2c Return wall section 3, 3' push-in fitting 3a, 3a' Insertion main body wall 3a1 free end 3b, 3b′ Cantilever tongue piece 3b1 Tip part 4. Flexed section 5 Narrow groove 6 grooves 7. Sealing member 8 protrusions M Insertion space B Screw K1~K10 Bend part W Open width L Insertion length S1 Other construction and civil engineering sheet materials S2 Other building and civil engineering sheet materials

Claims

1. A building and civil engineering panel comprising a panel body having a receiving joint at one end in the width direction and a slip-in joint at the other end in the width direction, wherein the slip-in joints of other adjacent building and civil engineering panel materials are inserted into the receiving joints of the panel body to connect them, and the slip-in joints of the panel body are inserted into the receiving joints of other adjacent building and civil engineering panel materials to connect them, thereby connecting the panel materials to each other to construct exterior walls, interior walls, ceilings, or interior and exterior panels of civil engineering and infrastructure works, The plate body comprises a base wall portion in the center in the width direction, the back surface of which is close to or in contact with the base material, and a pair of side wall portions, one end of which is connected to the edge of the base wall portion via a bent portion, and the other end of which is connected to a receiving joint and a slip joint, respectively. The aforementioned joint comprises a receiving body wall portion cantilevered to the edge of one of the pair of side wall portions, a fixed wall portion cantilevered to the free end of the receiving body wall portion via a narrow groove and capable of contacting a base material, and a return wall portion connected to the free end of the fixed wall portion, which, in cooperation with the receiving body wall portion and the fixed wall portion, demarcates an insertion space inside into which other building and civil engineering panel insert joints are inserted. The aforementioned insert joint has an insert body wall portion cantilevered to the other side wall portion of the pair of side wall portions, and a cantilevered tongue portion that is connected to the free end of the insert body wall portion in a direction along the fixed wall portion, and at least its tip portion is inserted into a receiving joint of another building or civil engineering plate material with springback, The aforementioned insertion space has an open width that, when the insertion joint of the other building or civil engineering plate material is inserted into the receiving joint and placed in an overlapping state, forms a narrow groove between the insertion joint of the other building or civil engineering plate material and the receiving body wall, extending along the longitudinal direction of the plate material body. When the cantilevered tongue is inserted into a joint of another building or civil engineering panel and placed in an overlapping state, it forms a narrow groove extending along the longitudinal direction of the panel between the receiving body wall of the joint of the other building or civil engineering panel and the insertion body wall of the insertion joint, or the insertion body wall has an insertion length that abuts against the receiving body wall of the other building or civil engineering panel. The aforementioned cantilevered tongue is, When inserted into a joint of another building or civil engineering panel, a first portion is positioned at a predetermined distance from the fixed wall portion of the joint, The first portion is bent toward the base material, and when inserted into the joint of another building or civil engineering board, the tip of the second portion is inserted into a narrow groove provided in the joint of the other building or civil engineering board, It consists of, The second portion is characterized in that, when inserted into the joint of another building or civil engineering board, it abuts against the connection portion between the receiving body wall of the joint of the other building or civil engineering board and the narrow groove, and the tip of the second portion is inserted into the narrow groove provided in the joint of the other building or civil engineering board while abutting against the fixed wall provided in the joint of the other building or civil engineering board.

2. The building and civil engineering board material according to claim 1, characterized in that the side wall portion extends along the longitudinal direction of the board material body and has at least one bent portion that bends the side wall portion in the width direction of the board material body.

3. The wall portion of the insertion body has a projection that, when the insertion joint is inserted into the receiving joint of the other building or civil engineering board material, works in conjunction with the receiving joint of the other building or civil engineering board material to prevent the insertion joint from being pulled out of the receiving joint, as described in 1 or 2.

4. The cantilevered tongue piece is characterized in that, when the insert joint of the other building or civil engineering board material is inserted into the receiving joint, it has a projection that works in conjunction with the insert joint of the other building or civil engineering board material to prevent the insert joint from being pulled out of the receiving joint, as described in 1 or 2.

5. The aforementioned board material has a cross-sectional shape in which the bottom side is concave, and the bottom side is the surface of an exterior wall, interior wall, ceiling, or interior / exterior panel for civil engineering and infrastructure works, as described in 1 or 2.

6. A connecting structure comprising multiple building and civil engineering boards as described in claim 1 or 2, A connecting structure using building and civil engineering panels, characterized in that a receiving joint provided at one end of the panel body in the width direction is used to connect other building and civil engineering panel materials by inserting a plug joint of another building and civil engineering panel material into it, while a plug joint provided at the other end of the panel body in the width direction is used to connect other building and civil engineering panel materials to each other by inserting a plug joint of another building and civil engineering panel material into it.

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