JP2001073459A - Construction method of roof structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a construction method of a roof structure allowing a roof of even a high building to be constructed with high efficiency without depending on a total scaffolding construction method or a lift-up construction method. SOLUTION: A plurality of truss frame members 4 are arranged in a plane mesh state to construct a roof structure of circular dome shape. At this time, a plurality of roof structure bodies 6 are formed of a plurality of truss frame members 4. These roof structure bodies 6 are installed while being jointed in order from the eaves part side to the ridge part side of a roof 2, and a tension member 8 or 9 for pulling the ridge part side end part to the outside of the roof 2 is fitted to each roof structure body 6. The tension member 8 is fitted along a roof face, and the tension member 9 is obliquely fitted toward the inside of the roof 2. The horizontal tension members 8 and the oblique tension members 9 are alternately fitted to a plurality of roof structure bodies adjacent in the pitch direction of the roof 2. The roof structure body 6 is formed in W-shape or V-shape in plane.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for constructing a roof structure, and more particularly, to a truss frame material composed of upper chord material, lower chord material, and abdominal material, or a plurality of shapes such as shaped steel, steel pipes, etc. It is possible to construct a roof structure having a plane circular shape or a polygonal shape arranged in a very efficient manner without using a conventional scaffolding method or a lift-up method.

[0002]

2. Description of the Related Art As a method of constructing a roof structure of this type, a temporary support is erected on the ground where a structure is to be constructed, and a scaffold is mounted thereon. A total scaffolding method of constructing and lifting the framing members of the roof structure on this scaffold using a lifting machine such as a crane, and assembling the framing to construct the entire roof. A temporary support or a jack-up stand above these outer or outer shells, and install a jack-up device on top of them.The inner or inner part of the roof structure assembled on the ground A lift-up method is used to lift the part corresponding to the part with a jack-up device, and then connect the inner or inner shell part of the roof structure and the outer or outer part with a joining material to construct the entire roof. It is known.

[0003] However, all of these construction methods are applied when the height of the roof structure is relatively low or at most about 20 m. At present, they have not been adopted because of reasons such as work cost and extension of construction period.

The applicant has developed a construction method for a roof structure as shown in FIGS. 8 and 9, and has already filed an application. In the construction method shown in FIG. 8, a plurality of truss frame members or sections are prepared by erecting a temporary support 21 on an outer building frame 20 corresponding to an outer wall of a roof structure and assembling the block into a predetermined size in advance on the ground. Of the roof structure 22 is sequentially lifted by a lifting machine 23 such as a crane, and is joined to the already constructed roof structure 22 that has been lifted and installed, and the tip of the roof structure 22 is extended from the top of the temporary support 21. A method in which a plurality of roof structures 22 are successively added in the direction of the arrow while being suspended by the member 24 to construct the entire roof.
2 can be prevented from drooping, and the posture of the roof structure can always be maintained in the shape at the time of design.

On the other hand, in the construction method shown in FIG. 9, a temporary support 21 is erected at a contact portion of a constructed roof structure 22, and a plurality of shape maintaining members 23 for fixing the temporary support 21 around the temporary support 21 are provided. The roof structure 22 is arranged to stabilize the temporary support column 21 and is newly assembled with a lifting block.
A plurality of roof structures are sequentially added in the direction of the arrow while joining with the constructed roof structure 22 which has been previously lifted and installed, and suspended by the pulling member 24 extended from the temporary support column 21, thereby constructing the entire roof. With this construction, the tip of the roof structure 22 can be prevented from sagging, and the posture of the roof structure can be always maintained in the design state.

However, all of these construction methods have problems in terms of workability and work period, and may not be applicable to some buildings. The present invention has been made to solve the above problems, and it is possible to construct a roof structure of a high building very efficiently without using a large-scale method such as a total scaffolding method or a lift-up method. An object of the present invention is to provide a construction method of a roof structure that can be performed.

[0007]

As a means for solving the above-mentioned problems, a construction method of a roof structure according to the present invention is characterized in that a plurality of truss frame members, profiles or steel pipes are plane meshed. Blocks are assembled into a plurality of roof structures, and these roof structures are installed in order from the eaves side of the roof to the ridge side, and the ridge side end of each roof structure is roofed. A flat circular or polygonal roof structure is constructed by attaching a pull member to each of the outside of the roof.

According to a second aspect, in the construction method for a roof structure according to the first aspect, a horizontal tension member attached along the roof surface and an oblique tension member attached diagonally toward the inside of the roof are provided as the tension members. Roofs are attached alternately from the eaves side to the ridge side on a plurality of roof structures adjacent in the direction of the slope of the roof.

According to a third aspect, in the construction method for a roof structure according to the first or second aspect, a turnbuckle is attached to the pulling member. According to a fourth aspect, in the construction method of a roof structure according to the first, second, or third aspect, a plurality of truss frame members, profiles, or steel pipes are block-assembled into a flat W-shaped or V-shaped roof structure. .

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIGS. 1 to 6 show a roof structure constructed in a circular dome shape by arranging a plurality of truss frame members or shapes such as shaped steel, steel pipes, etc. in a plane mesh, and a construction method thereof. In the figure, a building skeleton 1 corresponding to an outer wall is constructed at a predetermined height on the outer periphery, and a circular dome-shaped roof (shed set) 2 is constructed on the building skeleton 1.

The eaves (outer periphery) of the roof 2 is firmly fixed to the upper end of the building frame 1 via an anchoring member 3.
The building frame 1 has a strength capable of safely supporting the roof 2 and is made of, for example, reinforced concrete. Further, the anchor member 3 has a strength capable of securely transmitting the load from the roof 2 to the building frame 1 by firmly fixing the eaves of the roof 2 to the upper end portion of the building frame 1, and is made of, for example, a steel frame material. ing.

The roof 2 is composed of an upper chord member 4a and a lower chord member 4b spanning along the roof gradient direction, and a plurality of abdominal members 4c spanning between the upper chord member 4a and the lower chord member 4b in a lattice shape. A plurality of truss frame members, a plurality of section steels and steel pipes (hereinafter, referred to as “truss frame members 4”) are arranged in a plane mesh, and between the contact portions of the upper chord members 4a and 4a and between the lower chord members 4b. It is constructed by bridging a circumferential connecting material 5 between each contact portion with the roof 4b along the circumferential direction of the roof 2.

The mesh of the roof 2 constructed in this manner can be various meshes such as a lattice mesh and a rhombus mesh. In the figure, one mesh is formed in a triangular shape. The plurality of truss frame members 4 including the circumferential tie members 5 are joined together on the ground in advance, as necessary, and assembled into a roof structure 6 having a predetermined size. Lifted at 7, and set in place,
And it is mutually joined with the adjacent roof structure 6.

In particular, the roof structure 6 installed on the eaves of the roof 2 is firmly fixed to the upper end of the building frame 1 via the anchor member 3. Although the roof structure 6 can be assembled into blocks in various shapes, the blocks are assembled into a flat W-shape or V-shape in the figure.

Each of the roof structures 6 thus assembled into blocks is provided with a horizontal pulling member 8 in order from the one installed on the eaves of the roof 2 to the one installed on the ridge side of the roof 2.
And oblique pull members 9 are alternately mounted. In particular, a horizontal pull member 8 is mounted on the roof structure 6 installed at the eaves of the roof 2.

Horizontal tension member 8 and oblique tension member 9
Both mainly prevent the roof structure 6 from sagging during and after the construction of the roof 2, and are formed of, for example, tie rods or wire cables, and the turnbuckle 10 is attached so that the length can be adjusted. Have been.

The horizontal pulling member 8 is bridged along the roof surface (at the same height as the upper chord member 4a) between the contact portion between the upper chord members 4a and the circumferential connecting member 5, and its eaves end side The section 8a and the ridge side end 8b are respectively connected to the contact portion of the upper chord members 4a and the central portion of the circumferential connecting member 5, and are particularly attached to the roof structure 6 installed on the eaves of the roof 2. The eaves end 8a of the horizontal tension member 8 is firmly connected to the upper end of the anchor member 3.

Further, the oblique pulling member 9 is obliquely bridged between the circumferential connecting member 5 and the contact portion between the lower chord members 4b toward the inside of the roof (in the truss frame member 4). The eaves end 9a is connected to the circumferential connecting member 5 and further to a horizontal pulling member 8 attached to a roof structure 6 adjacent to the eaves.

The ridge-side end 9 of the oblique pulling member 9
b is connected to the contact portion between the lower chord members 4b. Further, a fixed tension is introduced to the horizontal pulling member 8 and the oblique pulling member 9 by tightening the turnbuckle 10. At this time, even after the construction of the roof 2, tension may be introduced again by tightening the turnbuckle 10 as necessary.

By attaching the horizontal pulling member 8 and the oblique pulling member 9 in this manner, it is possible to prevent the roof structures 6 from hanging down when the roof 2 is constructed and after the roof 2 is constructed. Posture can always be maintained in the state at the time of design, and construction accuracy is greatly improved.

Next, a construction method of a roof structure according to the present invention in such a configuration will be described step by step. First, an outer building frame 1 corresponding to the outer wall of the roof structure is constructed, and an anchoring member 3 is installed at the upper end thereof. On the ground, a plurality of truss frame members 4 are joined together to form a flat W-shaped or V-shaped roof structure 6 as a block. At that time, the circumferential connecting member 5 may be attached. Rather, attaching the circumferential connecting member 5 on the ground can maintain the shape of the roof structure 6 and prevent deformation when lifting with a lifting machine 7 such as a crane, thereby increasing construction accuracy. In addition, roof structure 6
At the same time, the horizontal pulling member 8 or the oblique pulling member 9 is attached to each roof structure 6.

Next, the roof structure 6 to which the horizontal pulling member 8 is attached is lifted by the lifting machine 7, installed on the ridge side (inside) of the building frame 1, and the eaves side is firmly fixed to the anchor member 3. . Also, the eaves end 8a of the horizontal pulling member 8
And the ridge side end 8b are connected to the upper end of the anchor member 3 and the center of the circumferential connecting member 5, respectively. As a result, the roof structure 6 is firmly joined to the ridge side (inside) of the building frame 1,
Further, since the ridge side end is pulled out of the roof 2 by the horizontal pulling member 8, it does not hang down.

Next, the roof structure 6 to which the oblique pull member 9 is attached is newly lifted by the hoist 7 and installed on the ridge side of the roof structure 6 previously installed. Then, the eaves-side end is joined to the ridge-side end of the roof structure 6 previously attached. Also, the eaves end 9a of the oblique pull member 9 is connected to both the circumferential connecting member 5 and the horizontal pull 8 of the roof structure 6 installed first, and the ridge side end 9b is connected to the lower chord member 4b.
Connect to the contact points between the two. As a result, the newly installed roof structure 6 is firmly joined to the ridge side end of the previously installed roof structure 6, and the ridge side end is roofed by the oblique pulling member 9. 2 does not hang down because it is pulled outside.

Next, the roof structure 6 to which the horizontal pulling member 8 is attached is further newly lifted by the lifting machine 7,
It is installed on the ridge side of the roof structure 6 installed earlier. Then, the eaves tip side is firmly joined to the ridge side of the roof structure 6 attached earlier. Further, the eaves end 8a of the horizontal pull member 8 is connected to the contact point between the upper chords 4a of the roof structure 6 installed first, and the ridge end 8b is connected to the center of the circumferential joining material 5. connect. As a result, the newly installed roof structure 6 is replaced with the previously installed roof structure 6.
Is firmly joined to the ridge side, and the ridge side end is pulled out of the roof 2 by the horizontal pulling member 8, so that it does not hang down.

Hereinafter, similarly, the oblique pulling member 9
The entire roof 2 is constructed by sequentially installing the roof structure 6 to which the roof is attached and the roof structure 6 to which the horizontal pulling member 8 is attached from the eaves side of the roof 2 to the ridge side. Embodiment 2 of the Invention FIGS. 7A and 7B show an example of a roof structure in which a plurality of truss frame members, profiles, steel pipes, and the like are arranged in a plane mesh and constructed in a mountain shape. A building skeleton 1 is constructed at a predetermined height, and a mountain-shaped roof 2 is constructed on the building skeleton 1. Further, the outer periphery of the roof 2 is firmly joined to an anchoring member 3 installed at the upper end of the building frame 1. This type of roof structure can also be constructed very efficiently by the construction method described in the previous example.

[0026]

The present invention is as described above. A plurality of roof structures preliminarily assembled into blocks in the form of a W-shape or a V-shape on the ground are moved from the eaves side of the roof to the ridge side. The entire roof is constructed by joining them in order and simultaneously attaching pulling members that pull the ridge side end of the roof structure to the outside of the roof at the same time, so that the entire roof is built, Rather than using a large-scale construction method such as a lift-up method, a very high roof structure can be constructed extremely efficiently using only a small number of temporary materials, and the construction period can be significantly shortened and costs reduced. And so on. Further, the roof buckle can be always maintained in the state at the time of design by tightening the turnbuckle and introducing the necessary tension to each pulling member, so that the construction accuracy is extremely high.

[Brief description of the drawings]

FIG. 1 shows a construction method of the present construction method, in which (a) is a partial plan view of a roof structure, and (b) is a longitudinal sectional view thereof.

FIGS. 2A and 2B show a roof structure in which a plurality of truss frame members are incorporated in a flat W-shape, wherein FIG. 2A is a plan view and FIG. 2B is a longitudinal sectional view.

FIG. 3 is a partial plan view of a roof structure showing a construction method according to the present construction method.

4A and 4B show a construction method according to the present construction method, wherein FIG. 4A is a partial plan view of a roof structure, and FIG. 4B is a longitudinal sectional view thereof.

5A and 5B show a construction method of the present construction method, in which FIG. 5A is a partial plan view of a roof structure, and FIG. 5B is a longitudinal sectional view thereof.

FIGS. 6A to 6E are partial plan views of a roof structure showing a construction method according to the present construction method.

7A and 7B show a construction method of the present construction method, in which FIG. 7A is a partial plan view of a roof structure having a mountain shape, and FIG. 7B is a longitudinal sectional view thereof.

FIG. 8 is a partial vertical sectional view of a roof structure showing an example of a conventional construction method.

FIG. 9 is a partial vertical sectional view of a roof structure showing an example of a conventional construction method.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Building frame 2 Roof (shed structure) 3 Anchor member 4 Truss frame material (truss frame material, shaped steel or steel pipe) 4a Upper chord material 4b Lower chord material 4c Belly material 5 Circumferential joining material 6 Roof structure 7 Lifting machine 8 Horizontal pulling Member 8a eaves front end 8b ridge side end 9 Diagonal pull member 9a eaves front end 9b ridge side end 10 turnbuckle

Claims (4)

[Claims] In a construction method of a roof structure constructed by arranging a plurality of truss frame members, profiles or steel pipes in a plane mesh, in a circular or polygonal shape, a plurality of truss frames, profiles or steel pipes are provided. Are assembled into a plurality of roof structures that form a plane mesh, and the roof structures are installed while joining them sequentially from the eaves side to the ridge side of the roof, and each roof structure is attached to the ridge side end. A method for constructing a roof structure, wherein a pulling member for pulling a part of the roof is attached to the outside of the roof. 2. The pulling member is a horizontal pulling member mounted along the roof surface and a diagonal pulling member mounted diagonally toward the inside of the roof, and the horizontal pulling member and the diagonal pulling member are adjacent to each other in the direction of inclination of the roof. The method of constructing a roof structure according to claim 1, wherein the roof structure is alternately attached to a plurality of roof structures. 3. The construction method for a roof structure according to claim 1, wherein a turnbuckle is attached to the pulling member. 4. The roof structure according to claim 1, wherein a plurality of truss frame members, profiles or steel pipes are block-assembled into a flat W-shaped or V-shaped roof structure. The construction method of things.