JPH0525877A - Construction of roof of building - Google Patents

Abstract

PURPOSE:To prevent a roof unit from opening on lifting the roof unit and make use of the roof space as a living space after having lifted it. CONSTITUTION:A roof unit 15B widen toward the lower end is fabricated in a factory and transported to a construction site to arrange in the ridge of roof 14. When the roof 14 of a unit house 11 is constructed, in such a way a C-shaped steel member 25 is installed between both rising beams 17 extending downward from the center of skeleton 19 constituting the roof unit 15B. In this condition, the roof unit 15B is lifted to arrange at the ridge. After that, the C-shaped steel member 25 is removed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of constructing a roof of a building in which a roof unit manufactured in a factory is transported to a construction site and the roof unit is arranged in a roof ridge.

[0002]

BACKGROUND ART In recent years, a unit house has been constructed in which living rooms and the like that make up a house are manufactured as a housing unit in a factory, and these housing units are transported to a construction site and assembled. In such a unit house, the roof is also constructed by assembling a plurality of roof units. When arranging such a roof unit on the residential part of the house at the site, eyebolts are screwed onto the nuts installed near the lower ends of the climbing beams that make up the frame of the roof unit, and the hooks of the crane are attached to these eyebolts. Is hooked via a chain to hang the roof unit.

[0003]

[Problems to be Solved by the Invention] Of the roof units,
For example, the roof unit arranged in the ridge has a shape that opens downward in a divergent manner. Since such a roof unit is usually spanned by beams, when the roof unit is lifted by a crane and placed in a ridge of a house, the roof unit may open left and right due to its own weight, and the roof unit may be deformed. There is no such thing. However, when such a beam was spanned, the beam was an obstacle when trying to create a living space in the attic. On the other hand, if a roof unit in which beams are not bridged is used, the roof unit may open to the left and right during lifting, and the roof unit may be deformed. Therefore, an object of the present invention is to provide a method for constructing a roof of a building, which can prevent the roof unit from opening when hoisting the roof unit and can use the back of the hut as a living space after hoisting. And

[0004]

According to the present invention, a roof unit which opens downward in a divergent shape is manufactured in a factory, the roof unit is transported to a construction site, and the roof unit is arranged on a roof ridge. A method for constructing a roof of a building, wherein a connecting member is bridged between both frame portions extending downward from a center of a frame constituting the roof unit, and the roof unit is lifted in this state, and the roof unit is attached to the building. And then the connecting member is removed. The connecting member is a steel material, a rope, a chain, or the like.

[0005]

When the roof unit that opens downward in a divergent manner is lifted, the connecting member that is bridged between the two skeletons extending downward from the central portion of the skeleton serves as an opening stopper for both skeletons, and the roof is opened. Prevent the unit from opening. Also, since this connecting member is removable,
After hoisting the roof unit, the connecting member can be removed and the attic can be used as a living space.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment in which the present invention is applied to a roof construction method for a unit house will be described with reference to FIGS. First, in a factory, a roof unit 15 that forms a roof 14 is manufactured together with a housing unit 13 that forms a living part 12 of a unit house 11. Living part 12 of the unit housing 11
Is a total of nine housing units 13 in the girder direction, which is the first floor part, and three in the beam direction (direction orthogonal to the girder direction), and these first-floor housing units 13 that are the second floor part.
It consists of nine housing units 13 mounted on top.

The roof 14 is a right-angled triangular roof unit 15A mounted on both sides of the second-floor housing unit 13 when viewed from the wife side, and a downwardly-expanded roof unit mounted on the ridge of the roof 14. It consists of a triangular roof unit 15B open to the side.
The roof unit 15 which is these units 15A, 15B is
16, a climbing beam 17, a girder 18 and the like, and a frame 19 made up of frame parts, and a base plate 20, a waterproof sheet 21, and a roof finishing material 22 provided on the frame 19. A nut to which an eyebolt 23 is screwed when the roof unit 15 is lifted by a crane or the like is welded to an appropriate portion of each frame 19.

Among these roof units 15, the skeleton 19 of the roof unit 15B in the central portion is constructed by combining a plurality of joint beams 24 in which the left and right climbing beams 17 are connected at the center in the girder direction. It is a thing. As shown in FIG. 3, these climbing beams 17 have an upper surface portion in which a downward bent portion 17A is formed.
17B, a side surface portion 17C, and a C-section steel having a lower surface portion 17E on which an upward bending portion 17D is formed. A C-shaped steel 25 serving as a connecting member is fixed and bridged between the side surface portions 17C near the ends of the climbing beams 17 of the end side beam 24. In this way, this C-shaped steel 25 is attached to the side surface of the climbing beam 17, and the roof unit 15B
After the placement of, the side surface is removed.

Next, such a roof unit 15 is transported to the construction site together with the housing unit 13. Next, at the construction site, the housing units 13 on the first and second floors are lifted by a crane or the like and placed at a predetermined position to form the living section 12.

Next, as shown in FIGS. 1 and 2, after the right-angled triangular roof unit 15A is hung up and arranged on both sides of the second-floor housing unit 13, a frame 19 of the divergent roof unit 15B is formed. The hook 27 of the crane is attached to the eyebolt 23 attached to the via the chain 28, and the roof unit 15B is lifted and placed in the ridge of the roof 14. When hoisting the expansive roof unit 15B, the C-shaped steel bridged between the climbing beams 17 of the girder side beam 24
25 serves as an opening stopper for the cross beam 24 and prevents the roof unit 15B from being deformed by opening.

After arranging the roof unit 15B at a predetermined position in this way, the C-shaped steel 25 is removed from the joint beam 24. next,
Adjacent the roof-shaped roof unit to the roof unit 15B
Place it in the ridge of roof 14 in the same manner as in. After this,
Panels (not shown) are attached between the right-angled triangular roof units 15A on the wife side and on the sides of the divergent roof unit 15B on the wife side to manufacture the roof 14 of the present embodiment.

According to the method of constructing the roof 14 of the above embodiment,
When hoisting the splayed roof unit 15B, the C-shaped steel 25 is bridged between the climbing beams 17 of the girder side beam 24, so that the beam 24 can be prevented from opening and the roof unit 15B can be opened and deformed. Can be prevented. Also, this C-shaped steel 25
Is removable, the roof unit 15A,
After lifting 15B, the C-shaped steel 25 can be removed and the attic can be used as a living space. Further, the C-shaped steel 25
Can be attached at the same time when the roof unit 15 is manufactured in the factory, and can be easily removed at the site, so there is no problem in reducing the site work intended for the unit house.

Next, referring to FIGS. 4 and 5, the second embodiment of the present invention will be described.
An example will be described. This embodiment differs from the first embodiment in that the position where the C-shaped steel 29 is bridged in the gable side beam 24 is C
The end 29A of the shaped steel 29 is fixed to the lower surface 17E of the climbing beam 17 with a bolt 26 so as to be bridged. With this configuration, in the first embodiment, the C-shaped steel 29 is climbed up.
Since the bolts were fastened to the side surface of 17, the C-shaped steel 25 was removed every time the divergent roof unit 15B was arranged. However, in this embodiment, the C-shaped steel 29 is bolted to the lower surface side of the climbing beam 17. Since they are stopped, the C-shaped steels 29 can be collectively removed from the lower surface side after all the roof units 15 have been arranged, and the workability is improved.

Next, referring to FIGS. 6 and 7, the third embodiment of the present invention will be described.
An example will be described. In this embodiment, as the C-section steel 30 bridged over the gable side beam 24, one longer than the C-section steel 25 in the first embodiment is used, and the C-section steel 30 is used when the roof unit 15B is manufactured in the factory. The joint beam 24 is fixed to the joint beam 24 with bolts 26, and the nuts 31 to which the eye bolts 23 are screwed are welded near both ends of the joint beam 24. Therefore,
In the case of this roof unit 15B, it is not necessary to attach a lifting nut to the frame 19 of the roof unit 15B. With this configuration, the roof unit 15B
After hoisting and arranging, since it is possible to save the work of constructing the base plate 20, the waterproof sheet 21 and the roof finishing material 22 in the portion where the nut is provided as in the conventional art,
Useful for reducing on-site work.

In the above embodiment, the C-section steels 25, 29, 30 are laid across one of the gable side beams 24 of the divergent roof unit 15B. You can Further, although the building of the above-described embodiment is a unit house, the present invention can be similarly applied to a building where the living part is not composed of housing units.

[0016]

According to the method of constructing a roof of a building according to the present invention, it is possible to prevent the roof unit from opening when the roof unit is hoisted, and furthermore, after hoisting, the attic can be used as a living space. it can.

[Brief description of drawings]

FIG. 1 is a perspective view showing a method of constructing a roof of a housing unit according to a first embodiment of the present invention.

FIG. 2 is a side view of the roof unit according to this embodiment.

FIG. 3 is a sectional view of a main part of a roof unit according to this embodiment.

FIG. 4 is a side view of a roof unit according to a second embodiment of the present invention.

FIG. 5 is a sectional view of a main part of a roof unit according to this embodiment.

FIG. 6 is a side view of a roof unit according to a third embodiment of the present invention.

FIG. 7 is a sectional view of a main part of a roof unit according to this embodiment.

[Explanation of symbols]

 11 unit housing 12 residential section 13 housing unit 14 roof 17 climbing beam which is a frame section 15B roof unit which opens downward in a divergent manner 24 cross beam 25,29,30 C-shaped steel which is a connecting material

Claims (1)

Claims: 1. A roof unit that opens downward in a divergent shape in a factory is manufactured, the roof unit is transported to a construction site, and the roof unit is placed in a roof ridge. A method of constructing a roof, wherein a connecting member is bridged between both frame portions extending downward from the center of a frame constituting the roof unit, and the roof unit is lifted in this state, and the roof unit is attached to the ridge section. A method for constructing a roof of a building, which comprises arranging and then removing the connecting member.