JPH11172836A - Roof truss structure and work executing method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve workability by a method wherein light groove shape steel sheets formed by molding a steel sheet approximately in a U-shape are joined together by screws to form a steel house, the first upper beam and the second upper beam of an uppermost story wall are intercoupled through a ceiling joist to arrange a plate. SOLUTION: A topmost story wall upper frame consisting of a light groove- form steel spans between the upper end parts of a topmost story wall 5, and second beams are arranged on the upper frame of a topmost story wall upper frame and light groove shape steels 12 are joined together by a screw with an opening pointing to the internal part of a building. A lip groove shape steel 13 serving as a ceiling joist is laterally opened and inserted in the groove shape steel 12 and spans therebetween for joining by a screw. Plywood 3 for structure serving as a plate is arranged on the lip groove shape steels 13 to build a platform 10. Thereafter, roof triangular walls 20 are assembled together on the platform 10 for joining by screws. A ridge beam 21 and a main house 22 span between the roof triangular walls 20, and a rafter 23 spans to form the roof truss. This constitution utilizes the platform as a scaffolding, and ensures safety of a work.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates generally to a cabin structure of a building, and more particularly to a cabin structure of a steel house formed by joining thin steel plates to a substantially U-shaped lightweight channel steel screw. And its construction method.

[0002]

2. Description of the Related Art FIG. 4 is a perspective view showing an embodiment of a conventional hut assembly structure, and FIG. 5 is a perspective view showing another embodiment of the same. Generally, in the construction of a building by a frame wall method such as a steel house, first, the first-floor → first-floor → second-floor → second-floor walls are constructed in order from the lower structure to the erect construction of the top-floor wall 5. After that, the roof truss 1 pre-assembled as the construction of the hut structure is installed directly on the top floor wall 5. Thereafter, in order to secure the shear rigidity of the horizontal plane on the top floor wall 5, the lower brass truss also serving as a base material for the top floor ceiling and the horizontal brace 2 is attached to the ceiling joist (see FIG. 4), or The structural plywood 3 was mounted on the underside of the ceiling joist (see FIGS. 5 and 6).

[0003]

In the construction of the above-mentioned conventional shed structure, since a tall and heavy roof truss is directly erected on the top floor wall, a safe scaffold is required. It was difficult to secure and construct, and the work of attaching the horizontal brace and the structural plywood was an upward screwing work, which was poor in workability. In addition, since it is difficult to attach gypsum board to the side of the truss formed by joining the upper and lower chords with backing materials and diagonal materials with screws, it is difficult to form a room using the space behind the hut Had to use a separate interior substrate.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and has been made to improve the safety of work at the time of constructing a hut.
An object of the present invention is to improve the workability, improve the horizontal rigidity of the building, and obtain a hut structure that facilitates high insulation of the building.

[0005]

A truss structure according to the present invention is a construction method of a truss structure in a steel house formed by screw-joining a lightweight channel steel formed by forming a thin steel sheet into a substantially U-shape. Arranging a first upper beam of the top floor wall and a ceiling joist connecting the second upper beam facing the first upper beam, a first upper beam or a second upper beam or The method includes a step of arranging a board on a ceiling joist, and a step of installing a dropping wood and a sash on the board.

Further, the method further includes a step of installing a hanging wood or a ridge wood that interconnects the hanging materials placed on the plate material, and a step of installing the hanging wood and the upper wood material respectively. .

Further, there is provided a shed structure in a steel house formed by screw-joining a lightweight channel steel in which a thin steel sheet is formed into a substantially U-shape, wherein a first upper beam member of a top floor wall and a A ceiling joist connecting the opposing second upper joist; a plate arranged on the first upper joist or the second upper joist or the ceiling joist; and a droop installed on the plate It has wood and wood.

[0008] Further, the present invention further comprises a ridged wood or a ridged wood installed on a plate material for interconnecting the lumbers, and second tressed woods respectively installed on the ridged wood and the upper beam.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiment 1 FIG. 1 is a perspective view showing a frame state according to a first embodiment of a hut assembly structure according to the present invention,
FIG. 2 is an enlarged perspective view showing the frame state of the platform on the top floor wall, and FIG. 3 is an enlarged perspective view showing the frame state of the hut assembly structure. In the figure, reference numeral 10 denotes a platform which is erected on the uppermost floor wall 5 and is erected on the uppermost upper frame 11 in which a lightweight channel steel is provided on the upper end of the uppermost floor wall 5 in a state where it is faced down. The procedure is as follows. On the top floor wall 5 constructed in order from the first floor → the first floor → the second floor → the second floor and the lower structure, first, the first upper part of the top floor wall 5 along the girder direction. On the top frame 11 of the top floor as a beam material, a grooved steel 12 of lightweight section steel is screw-bonded as a second beam material so as to face the first beam material so that the opening faces the inside of the building. . Further, a lip channel steel 13 is opened laterally as a ceiling joist material, inserted into the inside of the channel steel 12, bridged in an orthogonal direction, and screw-joined. The structural plywood 3 as a plate material is staggered on the lip channel steel 13 and screwed at predetermined intervals to form the platform 10.

Next, on the platform 10, a roof triangular wall 20 constructed by using channel steel for the upper and lower frames and using a lip channel steel for the vertical frame is assembled, or the roof triangular wall 20 assembled on the ground. Platform 1
It is erected at a predetermined position on 0 and screwed. A ridge set 21 with a rafter type roof, in which a purlin 21 and a purlin 22 are passed over the roof triangular wall 20 and a rafter 23 is further suspended, is completed.

In the hut structure constructed as described above, the channel steel is joined onto the uppermost frame on the uppermost wall, the lip channel steel is bridged over this, and the structural plywood is staggered. Since the platforms are arranged and screwed at predetermined intervals, the shear rigidity of the horizontal plane on the top floor wall can be greatly improved. In addition, the construction of the platform on the top floor wall,
All screw driving is a downward operation. In addition, it provides a foothold for the upper frame. Structural plywood suppresses heat transfer from the roof triangular wall. Plaster board is directly attached to the roof triangle wall. Further, in the present invention, since no lumber is required for all the hanging lumber, it becomes possible to secure an attic between the board and the plurality of lumber.

[0012]

As described above, according to the present invention, instead of attaching the conventional horizontal braces and structural plywood to the lower chord members and the ceiling joists, channel steel, lip channel steel and structural plywood are used. By constructing a strong platform on the top floor, the shear rigidity of the horizontal plane on the top floor wall can be greatly improved. Further, in the construction of the platform on the top floor wall, since all screw driving is a downward operation, workability is greatly improved as compared with an upward screw driving operation when attaching a horizontal brace and a structural plywood. The platform constructed on the top floor wall is a free-moving scaffold for attaching the roof triangular wall, dramatically improving the workability compared to the conventional work of directly installing a roof truss on the top floor wall And sufficient safety is ensured. In a structure in which a conventional roof truss is erected directly on the top floor wall,
Heat from the roof truss was directly transmitted to the channel steel on the upper frame of the top floor, making it difficult to insulate the building. According to the present invention, when the upper surface of the platform is formed, the transfer of heat from the roof triangular wall is suppressed by the structural plywood, thereby facilitating the heat insulation of the building. Compared with the roof truss formed by screwing lip channel steel back to back, the roof triangular wall is manufactured by inserting the lip channel steel into the vertical frame using the channel steel as the upper and lower frames, and screwing it together. Therefore, since the gypsum board can be directly adhered, the interior finish becomes easy.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a frame structure according to a first embodiment of a shed structure of the present invention.

FIG. 2 is an enlarged perspective view showing a platform on a top floor wall according to the first embodiment of the shed structure of the present invention.

FIG. 3 is an enlarged perspective view showing a framing structure according to Embodiment 1 of the present invention.

FIG. 4 is a perspective view showing an embodiment of a conventional hut assembly structure.

FIG. 5 is a perspective view showing another embodiment of a conventional hut assembly structure.

FIG. 6 is a partially enlarged view of FIG. 5;

[Explanation of symbols]

 Reference Signs List 5 top floor wall 10 platform 11 top floor wall upper frame 12 channel steel 13 lip channel steel 14 structural plywood 20 roof triangular wall 21 purlin 22 purlin 23 rafter

Claims (4)

[Claims] 1. A method for constructing a shed structure in a steel house formed by screw-joining a lightweight channel steel formed by forming a thin steel sheet into a substantially U-shape, comprising: a first upper beam member of a top floor wall; , A step of arranging a ceiling joist to connect the second upper joist to face it, and a step of arranging a plate on the first upper joist or the second upper joist or the ceiling joist, A method for constructing a hut structure, comprising a step of placing hanging wood and truss on the board. 2. The method according to claim 1, further comprising the steps of: installing a hanging wood or a ridge wood that interconnects the hanging materials installed on the board; and installing the hanging wood, respectively, in the ridge wood and the upper beam. The construction method of a hut structure according to claim 1. 3. A shed structure in a steel house formed by screw-joining a lightweight channel steel formed by forming a thin steel sheet into a substantially U-shape, comprising: a first upper beam member of a top floor wall; A ceiling joist connecting the opposing second upper joist; a plate arranged on the first upper joist or the second upper joist or the ceiling joist; and a droop installed on the plate A hut structure having wood and wood. 4. The building according to claim 1, further comprising a ridged wood or a ridged wood installed on the board for interconnecting the lumbers, and second lagged woods respectively installed on the ridged wood and the upper beam. Item 3. The method for constructing a hut structure according to item 3.