JP2009155945A - Truss structure of building - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a truss structure of a large building for forming, particularly, a roof by joining partial trusses to each other which can solve problems of a conventional truss structure wherein the strength of the partial trusses must be maintained and the partial trusses must be joined to each other even at a high altitude. <P>SOLUTION: Tow side vertical members formed by joining square pipes to each other through diagonal members and upper and lower horizontal members are longitudinally arranged parallel to each other at specified intervals. Upper and lower horizontal members are so disposed on the upper and lower sides of these members that the square pipes are brought into contact with each other, and the side surfaces thereof are bolted by using joint plates to form a partial truss. In a partial truss at a principal rafter, a side vertical member is joined by welding in a upwardly projecting V-shape by using a joining plate. These partial trusses are joined to each other by bolting diagonal members while using the joining plates fixed to the square pipes. The strength of the partial trusses is increased, and a joining operation can be performed at a high altitude. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

    The present invention relates to a truss structure for a building, and more particularly to a truss structure used for a roof of a building.

    It is necessary to prevent the building from being damaged by rain, wind, etc. by covering the entire building to protect and preserve the old building. In that case, the structure which can cover and protect the whole building becomes huge.

    In order to create such a structure by combining trusses, an extremely long truss is required. In particular, old temples are mostly large gassho-style buildings.

    It is desirable that the building for protecting such a gassho-style building has a shape that matches the building to be protected.

    In order to assemble and form such a huge building using a truss, the length of the truss is long.

    It is extremely difficult to manufacture such an extremely long truss using one continuous long material. Moreover, it is difficult to make a truss that forms a roof for a gassho-style building from one long material, and there is a problem in strength.

    Therefore, it is conceivable to make long trusses by dividing long trusses and joining relatively short trusses. Again, each relatively short truss is a certain size, albeit short. Therefore, it is conceivable to increase the strength of the individual trusses and join them by welding.

    However, it is practically impossible to join roofs by welding in such a huge structure, as it requires welding at high places.

    In addition, in the case of gassho-zukuri, it is extremely difficult to create a high-strength building by connection, including its shape.

    In the present invention, a huge building as described above is manufactured by combining relatively short trusses, and each truss is extremely strong, easy to connect, and can obtain the overall strength after connection. The truss structure which forms the roof of this is provided.

    In particular, the present invention provides a truss structure in which the apex portion of a gassho-style roof can obtain extremely high strength.

    The truss structure according to the present invention includes a longitudinal member having a relatively short truss of the same shape divided into a plurality of parts, and upper and lower rectangular pipes connected with diagonal members, and left and right (front and rear) rectangular pipes with diagonal members. It is composed of an upper horizontal member and a lower horizontal member that are connected with each other, and two side vertical members are arranged in parallel at a predetermined interval. The member is fixed by fixing means such as bolting, and the upper quadrangular pipe of the two side vertical members and the left and right quadrangular pipes of the upper lateral member are arranged so as to overlap on one side. Similarly, the rectangular pipe at the lower part of the vertical member and the left and right (front and rear) square pipes of the lower horizontal member are arranged so that one surface overlaps, and the joined square pipes are fixed with bolts. Combine and create split partial trusses Was to so that.

    A long truss is constructed by sequentially joining a number of these relatively short partial trusses.

    In addition, the palm portion is a short truss having the above-described configuration, which is formed by joining two trusses with inclined joint ends in a V-shape, and welding the longitudinal members of the joint portion via a joining plate. Are integrated.

    In addition, in creating this joint portion, after welding the side vertical members via the joining plate in parallel with a certain interval before and after the two, the upper side and the bottom side of each joined side vertical member The member and the lower lateral member are arranged and fixed by bolting as described above.

    Since the truss structure of the present invention is a structure in which the divided relatively short trusses are bolted after being arranged so that each side of the truss overlaps with each other, the strength is extremely high. The strength when a long truss is formed is also great. In addition, since each truss is connected by means of bolts, work at a high place is possible.

    Next, an embodiment of the present invention will be described based on examples.

    FIGS. 1 to 7 show a truss structure according to a first embodiment of the present invention. Among these drawings, FIG. 1 is a perspective view of a partial truss constituting a long truss that forms the basis of the partial structure of the truss structure of the present invention. FIG. 4 is a perspective view (partial view) of partial trusses constituting the part of the palm, and FIG. 11 is a diagram showing the entire truss structure used to form a roof made of joints made by joining these partial trusses. .

    FIG. 1 is a perspective view (three-dimensional view) showing a basic configuration of a divided partial truss constituting the truss of the present invention as described above.

    The partial truss 50 shown in FIG. 1 includes a side vertical member 51 that forms a side surface, an upper horizontal member 60 (1) made of a member 61 having the same structure, and a lower horizontal member 60 (2).

    Among these members, the side vertical member 51 is configured as shown in FIG. 2, and supports upper and lower quadrangular pipes 52 and 53 made of metal (steel) with a slanting member 54 at a predetermined interval. This is the structure. Here, the upper and lower quadrangular pipes 52 and 53 and the diagonal member 54 are all joined and fixed by welding. Further, the upper lateral member 61 (1) and the lower lateral member 61 (2) have the same shape, and both are members 61 having a structure as shown in FIG. That is, the front and rear square pipes 62 and 63 are connected as shown in the figure using the diagonal member 64 and a bracket (right angle connecting bracket) 65 that is connected to the square pipe at a right angle. Both are performed by welding.

    Such a side vertical member 51, an upper horizontal member 61 (1), and a lower horizontal member 61 (2) shown in FIGS. 2 and 3 are combined as shown in FIG. That is, the two side surface vertical members 51 are arranged in parallel at regular intervals around the front and back, and the upper four corner pipes 52 of the front side vertical member 51 are disposed on the upper side of the upper side member 61 (1). The pipe 62 is placed and arranged so that the square pipe 63 on the rear side of the upper lateral member is placed on the square pipe 52 on the upper side of the side vertical member 57 on the one side. A rectangular pipe 62 in front of the lower horizontal member 61 (2) is located under the square pipe 53, and a rear square in the lower horizontal member 61 (2) is located under the rectangular pipe 53 in the lower side of the rear side vertical member. The partial truss 50 shown in FIG. 1 is formed by arranging the pipes 63 so that the screw holes provided in the square pipes are bolted using the screw holes of the joining plate 80.

    A long truss as shown in FIG. 11 is formed by joining the partial trusses 50 formed in this way by means shown later.

    The present invention joins the partial trusses as described above to form a truss that constitutes the roof of a gassho-style building. Therefore, the convex V-shaped portion above the palm portion has a different structure.

    Next, the partial truss of this palm portion will be described.

    FIG. 4 is a perspective view (three-dimensional view) of a partial truss of the palm portion of the embodiment of the present invention, and shows an enlarged portion of the palm portion, that is, the palm portion of the truss of the entire structure shown in FIG. It is a thing.

    5, 6, and 7 are diagrams showing each member of the structure shown in FIG. 4, FIG. 5 is a side vertical member that forms the front and rear side portions, and FIG. 6 is a front and rear side member. FIG. 7 is a diagram showing a lower horizontal member that connects the lower end surface with a member that connects the upper end surface to the upper horizontal member.

    As shown in FIG. 4, the structure (partial truss of the palm portion) 10 of the present invention has the front and rear side longitudinal members 11 shown in FIG. 5 arranged at regular intervals in the front and rear of FIG. 4. The vertical member 11 is connected by the upper horizontal member 21 and the lower horizontal member 31 to form a structure 10 (partial truss of a palm portion) as shown in FIG.

    In the structure 10 shown in FIG. 4 (partial truss of the palm portion), the side longitudinal member 11 shown in FIG. 5 is welded with square pipes 12 and 13 with diagonal members (for example, L-shaped steel) 14, respectively. The two formed members 11 (1) and 11 (2) having the same shape are welded and integrated so as to form a convex V shape.

    Further, the upper horizontal member shown in FIG. 6 is formed by connecting the front and rear square pipes 22 and 23 joined to the upper square pipe 12 of the front and rear side vertical members 11 in the structure shown in FIG. (Steel steel) connected at regular intervals, and connected by two connecting members 24 arranged in parallel and one connecting member (for example, an oblique member made of L-shaped steel) arranged obliquely. It is. 7 has a structure similar to that of the upper horizontal member 21, but is formed by joining the front and rear square pipes 32 and 33 by a connecting material 34 so that the connecting material 34 is parallel. There is no diagonal connecting material (diagonal material).

    Among these figures, the side vertical member 11 shown in FIG. 5 has a configuration similar to that of the side vertical member that forms a long truss both at the front and rear, and has a V-shape whose center is convex according to the apex shape of the roof. Are integrated by welding. That is, two side surface vertical members 11 (1) and 11 (2) are integrated by welding and sandwiching the plate 15. As described above, the V-shaped side surface vertical members 11 are arranged in parallel in the front-rear direction, and the upper horizontal members shown in FIGS. 6A and 6B are disposed on the respective upper rectangular pipes 12. A square pipe 22 in front of 21 (1) and 21 (2) is arranged and bolted and fixed. Further, a rectangular pipe 32 in front of the lower horizontal members 31 (1) and 31 (2) shown in FIGS. A three-dimensional structure as shown in FIG. Here, in order to fix the central portion by bolting, pentagonal plates 41 and 42 shown in FIG. 8 are used.

    FIG. 8 (A) shows a fifth floor-shaped joining plate shown in FIG. 8 for joining a rectangular pipe below the side surface vertical member, and a bolt fastening hole 43 and a pentagonal upper groove. 44 is formed. FIG. 8B is for joining the upper square pipe of the side vertical member, and has a hole 43 and a lower groove 44 formed therein.

    When the left and right partial trusses of the palm portion shown in FIG. 4 are connected by bolt tightening using the plate of FIG. 8, this groove 44 is used to connect the left and right (for welding). The rectangular pipe 22 of the upper horizontal member 21 or the four corners of the lower horizontal member 31 are respectively added to the upper and lower rectangular pipes 12 or 13 of the left and right side surface vertical members 11 (1) and 11 (2) so that the plate 15 is inserted. The pipes 32 are overlapped, and the pentagonal plate 41 or 42 shown in FIG. 7 is arranged at the connection portion of each of the square pipes, and the side vertical members 11 and the upper and lower horizontal pipes 21, using the bolt holes 43, 31 is integrated by bolting.

    In this way, the rectangular pipe 12 above the side vertical member 11 and one square pipe 22 of the upper horizontal member 21 and the square pipe 12 and upper horizontal member above the other side vertical member 11 (rear in the drawing). Twelve other square pipes 23 are superposed, pentagonal joining plates 42 are arranged, and fixed by bolting using respective screw holes.

    Similarly, it arrange | positions so that the square pipes 32 and 33 before and behind the lower horizontal member 31 shown in FIG. 7 may overlap with the square pipe 13 below the two side surface vertical members 11 arranged at intervals. A connecting plate is arranged and fixed by bolting using a bolt hole.

    In this way, when the front and rear side surface vertical members and the upper horizontal member and the lower horizontal member are fixed by bolting, the pentagonal plates 41 and 42 shown in FIG. Used. The pentagonal plates 41 and 42 have screw holes at positions corresponding to the screw holes provided in the respective square pipes, with the apex angle being the same as the apex angle of the center of the gas truss-made truss. The groove 44 having a shape substantially equal to the thickness of the plate used when the left and right trusses are joined by welding is provided, and the joining plate 15 that protrudes slightly outside the quadrangular pipe using the groove 44 is provided. After inserting, it fixes by bolting so that a joining plate may contact | adhere to a square pipe.

    As a result, the width of the joining plate for joining the left and right trusses by welding can be secured sufficiently, joining by welding is ensured, and the strength when integrated is extremely high.

    Next, a method for joining the partial trusses for producing a long truss used for joining the partial trusses described above in detail to form a roof with a palm structure will be described.

    First, a joining method for forming a long truss by sequentially joining the partial trusses 50 having the configuration shown in FIG. 1 will be described.

    FIG. 9 is an enlarged view of a portion indicated by an arrow A in the overall view of FIG. 11, and 50 (1) in FIG. 9 is substantially the same as the partial truss of FIG. Further, only a part of the left side which is a part to be joined is shown in the partial truss 50 (2) having the same shape and structure as the partial truss 50 (1). Similarly, the left side of the partial truss 50 (1) also shows a part of the partial truss 50 (3) having the same shape and structure.

    As shown in FIG. 9, the end portions of the square pipes 52, 53, 62, 63, etc. of the partial truss 50 (1) are overlapped and attached to the side vertical member 51 by welding. Using the plates 56 and 57, the two diagonal members 71 are crossed as shown in the drawing and fixed with bolts to connect the vertical side members of both partial trusses 50 (1) and 50 (2). Similarly, the side truss 50 (1) and 50 (3) of the partial trusses 50 (1) and 50 (3) are connected to the left side of the partial trusses 50 (1) using the diagonal member 71.

    In this way, a long truss is formed.

    Further, the connection between the partial truss 10 forming the central palm portion and the partial truss 50 will be described with reference to FIG.

    FIG. 10 also shows an enlarged view of the vicinity of the center palm portion of FIG. 11 showing the entire truss structure.

    In FIG. 10, a portion indicated by a central reference numeral 10 is a partial truss 10 of a palm portion shown in FIG. 4, and partial trusses 50 (3) and 50 (4) shown in FIG.

    As shown in FIG. 10, the joining plate 16 welded to the rectangular pipe below the partial truss 10 of the palm portion shown in FIG. 4 and the side vertical member 51 (FIG. 2) of the partial truss 50 shown in FIG. ) And the connecting plate 56 joined by welding of the upper square pipe 52, the diagonal member 72 is bolted to connect the partial trusses 10, 50. That is, the partial truss 50 (3) is arranged on the left side of the partial truss 10 in the palm portion, and both trusses 10 and 50 (3) are joined by the above-described means.

    Similarly, the partial truss 10 of the palm portion and the partial truss 50 (4) are joined to the right side by the same method.

    When the partial trusses are connected to each other as described above, the upper horizontal members are also imaged by means similar to the method in which the two diagonal members are crossed and bolted by using the connection plates 56 and 57 of the side vertical members. The two diagonal members are crossed and bolted using the plates 26 and 27, and the lower lateral members are connected to each other by using the plates 36 and 37 and the two diagonal members are crossed and bolted.

    Further, in the case of connecting the partial truss of the joint portion and the partial truss shown in FIG. 1, the plates 26 and 27 of the upper lateral member of the partial truss 10 of the joint portion and the plates 66 and 67 of the upper lateral member of the partial truss 50 are used. Further, the plates 36 and 37 of the lower horizontal member of the partial truss 10 of the palm portion and the lower horizontal members 66 and 67 of the partial truss 50 may be used and connected by bolting the connecting material.

    Thus, by connecting all the partial trusses between the side vertical members, between the upper horizontal members, and the lower horizontal members by bolting the connecting material, it is possible to connect by a simple bolt tightening operation, Moreover, it is possible to form a truss structure having sufficient strength even at the connecting portion.

    In this way, by connecting and fixing the other partial trusses 50 to the left and right of the partial truss 10 of the joint portion, a truss that forms a V-shaped roof with a raised central portion, that is, the center is formed as shown in FIG. can do.

    Here, each partial truss can be formed in a factory or the like, and a high roof portion can be connected to each partial truss by bolting on site. In other words, connection at a high place is possible and connection can be made relatively easily.

    FIG. 12 is a schematic view showing a state in which a gassho-style building using the truss structure of the building of the present invention is covered.

    As shown in this schematic diagram, the truss 1 of the roof portion is actually supported by a column-shaped truss (not shown), for example, as shown in FIG. Are arranged side by side in the direction perpendicular to the paper surface to cover the entire building 5.

    As described above, the truss of the palm portion of the steel-frame structure of the present invention is formed.

    The truss structure of the present invention is a truss for making a large structure, especially a huge truss that forms the roof of a gassho-zukuri building, which is formed by joining short truss together. It can be manufactured easily and at a low cost, and short trusses are not welded so that they can be connected at high places, and the joined and integrated truss has sufficient strength. Furthermore, the manufacturing of the center palm portion of the gassho structure is easy and extremely strong.

    As described above, the truss of the present invention is effective for forming a roof of a huge building, and particularly effective for making a gassho-style roof.

The perspective view of the partial truss of the Example of this invention The figure which shows the side surface vertical member of the partial truss shown in FIG. The figure which shows the upper part and lower part horizontal member of the partial truss shown in FIG. The figure which shows the partial truss of the palm part of the Example of this invention The figure which shows the side surface vertical member of the partial truss shown in FIG. The figure which shows the upper side member of the partial truss shown in FIG. The figure which shows the lower horizontal member of the partial truss shown in FIG. The figure which shows an example of the joining plate used with the partial truss shown in FIG. The figure which shows the junction part of the partial trusses shown in FIG. The figure which shows the junction part of the joining partial truss shown in FIG. 1 of the partial truss shown in FIG. The figure which shows the truss structure which forms the roof of the gassho-zukuri structure formed by joining the partial truss of this invention Schematic of a building that covers the entire building of a gassho structure using the truss structure shown in FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Partial truss of joint part 11 Side surface vertical member 21 Upper side horizontal member 31 Lower side horizontal member 50 Partial truss 51 Side surface vertical member 61 Upper side horizontal member, lower side horizontal member

Claims (4)

A truss that connects and joins a large number of partial trusses to form the roof of a huge building. The partial trusses are vertical side pipes that join upper and lower square pipes with diagonal materials, and front and rear square pipes that are diagonal and The upper horizontal member joined to the pipe at a right angle and a lower horizontal member joined to the front and rear quadrangular pipes by the diagonal member and the right angle to the square pipe. The members are arranged in parallel at a distance in the front and rear direction, and the upper and lower side vertical members are placed on the front and rear side vertical members so that the front and rear side square pipes overlap the square pipes on the upper side lateral members. The members are stacked, and the lower horizontal members are stacked on the front and rear side vertical members in such a manner that the front and rear side vertical members are stacked on the rectangular pipes below the front and rear side vertical members. A square pipe with each member overlaid Truss structure of the building, characterized in that the formation of the partial truss by bolting using the junction plates. The partial trusses were connected by joining the square pipes forming the partial trusses and then fixing them to each partial truss joining both ends of the diagonal using bolts. The truss structure of a building according to claim 1. In order to join the two partial trusses, front and rear side longitudinal members forming both partial trusses are joined together with diagonal members, and similarly, the upper lateral members and lower lateral members of the partial trusses are inclined. The truss structure for a building according to claim 2, wherein the structure is connected by a material. The building is a gassho-zukuri building, and the portion of the palm is the partial truss, and the lower quadrangular pipe formed by the side vertical members is trapezoidal in shape with a length shorter than the upper quadrangular pipe. 4. The truss structure for a building according to claim 3, wherein the upper horizontal member and the lower horizontal member are welded to the upper and lower sides of two trapezoidal side vertical members by using a joining plate to form a palm-shaped partial truss.

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