JPH0643722B2 - Roof truss - Google Patents

Description

TECHNICAL FIELD The present invention relates to a truss for a roof set formed by vertically stacking wooden strips, and in particular, to construct a floating roof on the truss main body of the laminated structure. Regarding roof trusses.

2. Description of the Related Art Conventionally, as roofing trusses formed by vertically stacking thin and long wooden strips, Japanese Utility Model Publication No. 51-105814, Japanese Utility Model Publication No. 54-57719, and Japanese Patent Application Laid-Open No. 59-185243 are known. ing.

The first precedent example is called a single arch truss, and the land beam is attached to the arch-shaped truss made of the laminated plate structure. The second precedent example is called a double arch truss, which is made of the laminated plate structure. A structure in which arch-shaped trusses are assembled in upper and lower double layers. In the third prior example, the same arch-shaped truss is made single and the chord members are installed horizontally in the arc-shaped portion, and in each case, the solid material structural portion is formed by the plate material. This will contribute to resource saving and achieve a significant reduction in construction costs.

In addition, it has advantages such as excellent strength against vertical load and lateral load such as snow load, and homogeneity, it is possible to construct a building with Omaguchi, and it is currently used as a roof truss for livestock houses, gymnasiums, warehouses, factories, etc. It has been widely practiced and is attracting attention for general housing.

Problems to be Solved by the Invention However, the building using the above-mentioned arch truss has a kamaboko-shaped exterior, a so-called circular roof structure, is monotonous and lacks dignity as a building style, and additionally has the disadvantage that it is difficult to tile, and gables and gables It was not possible to satisfy the user's preference for being accustomed to the style, and therefore the field of practice tended to be limited.

In addition, improvements and measures are being considered for the fact that the larger the opening of the building, the greater the number of stacked trusses. In addition, it has been pointed out that the circular roof structure is inferior to the gabled roof structure in terms of rain performance.

The present invention provides a truss that effectively solves the above-mentioned problems while effectively utilizing the advantages of the above-described roof truss having a laminated plate structure.

Means for Solving the Problems As the above means, the present invention uses the truss of the laminated plate structure as the main body of the structural bone for the roof assembly, and constructs the flow roof structural bone in the truss main body, The exterior structure has a ridge above the central part.

Further, according to the present invention, when constructing the above-mentioned flow roof structural bone, the left and right climbing bones are formed by reducing the number of laminated layers in the central portion of the truss body to form notches, and forming the flow roof structural bone at the steps at both ends of the notch. The lower end of the ridge is supported, and the ridge is supported by a bundle standing on the trust body.

Effects According to the present invention, it is possible to make a building have an appearance of a floating roof style while effectively utilizing the above-mentioned advantages of a truss main body formed by laminating elongated strips as a roofing structural material. Therefore, it is possible to eliminate the disadvantages of the round roof structure that is lacking in dignity and lacks aesthetics, and in addition, the roof roof structure bone built on the truss main body allows roofing similar to that of a conventional gabled or purlin-style building. On the roof, the drawbacks limited to galvanized iron roof (corrugated sheet metal roofing) can be solved.

Further, according to the present invention, the vertical load can be distributed to the joints between the truss main body at both ends of the flow roof structural bone, the strength load of the structural body of the truss main body can be reduced, and the number of laminated layers can be reduced.

Also, when building the above-mentioned flow roof structure bone in the truss main body,
The climbing bones that form the same-flow roof structure bones are made the same by devising a way to form a joint means (notch) for constructing the same-flow roof bones by partially reducing the number of controls in the building part. By using the stepped portion of the cutout portion, the integrated assembly can be easily and firmly performed. In addition, it is possible to have the good rain finish which is a feature of the floating roof structure bone.

Embodiments Embodiments of the present invention will be described below with reference to FIGS. 1 to 5.

As shown in FIG. 1, FIG. 2 and FIG. 3, wooden elongated strips 2 are laminated one above the other to form a truss body 1. The truss main body 1 is formed in an arch shape so as to have a downward slope from the center to both ends. In this case, the whole is arcuate with an arcuate curvature, or, as shown in the figure, the arcuate curvature is formed in the central portion to form the arcuate portion 3 and the inclined straight line portions 4 are formed at both ends. Arch formation.

The above-mentioned truss main body 1 is integrally constructed with a flow roof structure bone 5 having a ridge above the center of the main body 1. Reference numeral 7 is a climbing bone forming the flow roof structure bone 5, and the climbing bone 7
Has a straight downward gradient in the frontage direction and is arranged symmetrically or asymmetrically as shown.

As a connecting means for integrally assembling the flow roof structure bone 5 to the truss main body 1, for example, as shown in FIGS. 1 to 3, as shown in FIGS. On the side, and the flow roof structural bone 5 is arranged in the notch 6 formed by the reduction, and the lower end of the climbing bone 7 forming the flow roof structural bone 5 is a step portion at both ends of the notch 6. The upper end of the climbing bone 9 which is supported at the same place and attached to the upper surface of the truss main body 1 (supported by superposition) is combined with nailing or an adhesive to be integrated. At the same time, the ridge portion 10 at the upper end of the left and right climbing bones 7 is supported by a bundle 11 standing on the truss body. The bundle 11 is joined with a joining means such as a mortise or by hitting it with a nail, or integrally joined by using a mounting hardware or the like. Similar bundles are appropriately arranged in the extension region of the climbing bone 7.

Preferably, the notch 6 is formed in the arc-shaped portion 3 of the arch body 1.
It is formed in the extension area of the structure, and by arranging the flow roof structure bones 5 at the same place, the climbing bones 7 of the structure bones 5 are made to be substantially continuous with the inclined straight line portions 4 at both ends of the truss body 1, and The entire structure of the bone 7 and the inclined straight line portion 4 is made to have a flow roof structure. Reference numeral 15 is a main building that serves as a base bone for the roofing material.

As an example, the chord member 12 is arranged on the truss main body 1, both ends of the chord member 12 are joined to both end portions of the truss main body 1 by using the mounting hardware 13, etc., and if necessary, the extending region of the chord member 12 is extended. The important points are connected to the truss body 1 by the hanging members 18.

In addition, pillars are integrally provided at both ends of the truss body 1. As shown in FIG. 1, a short-length joint pillar 15a is vertically provided on the lower surface of both ends of the truss main body 1 via mounting hardware 16 and the like, and a box-shaped pillar mounting hardware 17 and the like is attached to the lower end of the joint pillar 15a. The joint is attached and the column 15b is joined to the joint column 15a through this joint.

Further, as another example, the end surface of the pillar 15 is directly joined to the lower surface of both ends of the truss main body 1 via the pillar mounting hardware 16 as shown in FIG. 2 without adopting the joint pillar structure. In this case, it goes without saying that the pillar 15 and the truss body 1 may be joined together by using a connecting means.

As shown in FIG. 5, the column 15, the joint column 15b, and the column 1
5a has a laminated pillar structure in which a large number of elongated strips 19 are laminated in the same manner as the truss body 1.

The strip laminated direction of the laminated pillar is the left-right direction (opening direction),
The plate thickness surfaces of the elongated strips 19 of the columns 15, 15a and the joint columns 15b and the surfaces of the elongated strips 2 of the truss body 1 are joined to each other in the lateral direction.

The roof trusses configured as described above are arranged side by side at a predetermined interval, and the purlin 14 is provided sideways on the upper surface of the climbing bone 7 of the flow roof structure bone 5 and the upper surface of the truss body 1 continuous with this. ,
A roofing board or the like is put on the purlin 14 for roofing or roofing with other roofing materials.

Effects of the Invention According to the present invention, therefore, there is an advantage of a truss main body formed by laminating elongated strips as a roof structural member, resource saving,
While effectively utilizing features such as strength, aperture expansion, and low cost,
The building can have the appearance of a floating roof.
Therefore, it is possible to eliminate the disadvantages of the round roof structure, which lacks the dignity and aesthetics of conventional trusses.In addition, the roof roof structure built on the truss body also allows roofing similar to that of conventional gabled or immovable building. On the other hand, the circular roof can solve the drawbacks that were limited to galvanized iron roof (corrugated metal sheet roofing). Further, according to the present invention, the vertical load can be distributed to the joints between the truss main body at both ends of the flow roof structural bone, the strength load of the structural body of the truss main body can be reduced, and the number of laminated layers can be reduced.

Further, by partially reducing the number of laminated truss bodies for constructing the above-mentioned roof structure, it is possible to easily form a connecting means (notch part) for constructing the same roof structure. The climbing bone forming the structural bone can be easily and firmly assembled by utilizing the stepped portion of the notch. In addition, it is possible to have the good rain finish which is a feature of the floating roof structure bone.

Further, according to the present invention, the use which has been conventionally limited to a warehouse, a livestock house, etc. has been expanded to the field of general houses and the like, so that it can be used as an urban building.

[Brief description of drawings]

FIG. 1 is a front view of a truss for a roof set showing an embodiment of the present invention, FIG. 2 is a front view of a truss for a roof set showing another example, and FIG. 3 is a laminated plate structure of a truss body. -A line sectional view, FIG. 4 is a plan view of a column attachment metal forming a column joint, and FIG. 5 is a sectional view taken along line BB of FIG. 2 showing a laminated plate structure of columns. 1 ... Truss body, 2 ... Elongated strip, 3 ... Arc section, 4
…… Sloping straight line part, 5 …… Floating roof structure bone, 6 …… Notch part, 7 …… Climb bone, 8 …… Step part of the notch part, 10 …… Bridge part, 11 …… Bundle, 15… … Pillars, 19… elongated strips.

Claims (3)

[Claims] Claims: 1. A roof assembly, characterized in that an arch truss main body is formed by laminating thin and long wooden strips vertically, and the arch truss main body is constructed with a flow roof structure bone having a ridge above the center of the main body of the arch truss main body. For truss. 2. An arch truss main body is formed by stacking wooden elongated strips vertically to reduce the number of laminated elongated strips of the arch truss main body on the upper surface side of the central portion of the arch truss main body.
The flow roof structure bone is arranged in the cutout portion formed by the reduction, the lower ends of the left and right climbing bones forming the flow roof structure are supported by the step portions at both ends of the cutout portion, and the ridge of the upper left and right climbing bones is provided. A truss for roof assembly, characterized in that the part is supported by a bundle that is erected on the main body of the arch truss. 3. The roof truss for roof assembling according to claim 1, wherein the arch truss main body having the notch is formed with an arcuate central portion and both end portions thereof are inclined straight portions.