JPS63138046A - Execution of ceiling - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Field of Application) The present invention relates to a method of constructing a roof truss or a large span bridge ceiling.

(Conventional technology) Generally, when constructing large-scale ceiling works such as stadiums, full-scale scaffolding was incorporated into the work related to the ceiling base. Using this full-scale scaffolding, the ceiling was constructed freely from any position, and the ceiling finishing material was fitted and fixed.

(Problem to be solved by the invention) However, in the past, the construction of full-scale scaffolding made it impossible to perform other types of work on the floor. During construction, it was not possible to work on the floor at the same time. In addition, most of the work space was used for installing scaffolding, and there was a limit to shortening the construction period.

The present invention has been made in view of the above circumstances, and its purpose is to provide a ceiling construction method that only requires partially assembling work scaffolding for ceiling construction.

(Means for Solving the Problems) In order to achieve the above object, the ceiling construction method according to the present invention first constructs the ceiling of a building into each small unit that constitutes the ceiling, and then constructs each of these units. The ceiling unit is supported so as to be movable from a fixed delivery point to a predetermined position on the ceiling, and the ceiling unit is sequentially delivered from the delivery point to the predetermined position. The ceiling of 1 is transported and constructed one after another.

(Embodiments) Preferred embodiments of the present invention will be described in detail below with reference to the drawings.

FIG. 1 is a schematic diagram of a large roof frame 1 used for a gymnasium.

This type of building has a large floor area to allow for athletic competitions,
It is required that there be no pillars within the floor area, and constitutes a large roof bridge 1 as shown in the figure.

That is, an arch-shaped gable truss 2-28 is provided on the gable side, an eave truss 3-3 is provided at each end between the gable trusses 2-2a, and two parallel keel trusses are provided in the center. The bridge is passing 4-4.

Further, from the keel truss 4-4 to the eave truss 3-3, sub-trusses 6 corresponding to the shape of the semi-cylindrical ceiling 5 are arranged at regular intervals from one eave truss 3 to the other eave truss 3.

The semi-cylindrical ceiling 5 is sequentially assembled to the large roof frame 1 later. The outline is shown in FIG. 2. A large roof frame 1 is mounted on the circumference W7 of the building and pillars 8, and a semi-cylindrical ceiling 5 is supported by this large roof frame 1.

In the figure, a part of the ceiling unit 13 is shown.

The configuration of the semi-cylindrical ceiling 5 is as follows:
) is shown in FIG. 3 and explained. A panel 11 in the shape of a boat bottom reinforced by passing a horizontal gusset 10 between both protruding ends of frame members 9 assembled in a planar view is coated with a ceiling finish such as product name Bylarton. The ceiling is made up of a large number of panels 11 connected adjacent to each other, and has an arch-like size that is installed on the eave truss 3-3 and is fixed at a constant width in the direction of the gable truss 2-2a. It constitutes unit 13. This ceiling unit 13
A required number of trusses are connected in the direction of the gable truss 2-2a to form a semi-cylindrical ceiling 5.

Therefore, an arch-shaped connecting plate 14 is fixed to the force direction end of the gable truss 2-2a of the ceiling unit 13.

The connecting plates 14 are connected to each other to obtain a semi-cylindrical ceiling 5. Moreover, a plurality of suspension members 15 are provided at both ends of the eave truss 3-3. FIG. 4 shows a side view of the ceiling unit 13, where the panel frame 11 is gradually inclined downward from the center of the frame member 9, and the ceiling finishing material 1 is stretched along the inclined surface.
2 constitutes the shape of a ship's bottom, and a suspension member 15 is provided at an appropriate position, and the upper end is attached to a wheel 18 that runs within a hanger rail 17 attached to the eave truss 3-3 via a suspension bolt 16. It is pivoted.

A connecting rod 19 is fixed in the middle of the hanging bolt 16, and the connecting rod 19 reinforces the connection of each panel frame 11. A wire 20 for pulling the panel frame 11 is connected to this connecting rod 19. The ceiling 5 generally does not constitute a very strong structure.

Therefore, the part supported for movement is the eave truss 3.
- If the hanger rail 17 attached to the keel truss 4-4 is not enough to ensure structural strength,
In addition, another hanger rail 17' is provided parallel to the keel truss 4, and this also has wheels 18 and hanging bolts 16.
′ is suspended, and the gable truss 2-2a of the ceiling unit 13 is
It is effective to connect the material 15 and the suspension bolts 16- with the suspension supports provided also in the middle of the direction, and to connect the traction wires 20 to portions of these suspension bolts 16, respectively. By pulling each wire 20, ceiling unit 1
Move 3. Ceiling unit 13 is hanger rail 1
7, wheels 18, and suspension bolts 16 to move. Instead of the wheels 18, ultra-high molecular weight polyethylene (trade name: Himolar, etc.) may be used.

Construction of this semi-cylindrical ceiling 5 will be explained below with reference to FIG. The work scaffolding 21 is installed on both sides of the eave truss 3-3 on the left side of the large roof bridge 1, and its width may be about the width of the ceiling unit 13 in the gable direction.

Since the ceiling 5 is constructed by assembling units (ceiling units) divided into several parts in the gable direction, the hanger rails 17 are first prepared on the large roof frame 1. Next, ceiling unit 13
is hung on the hanger rail 17. This suspended ceiling unit is referred to as a preceding ceiling unit 13.

Winch 22 and pulley 23 installed on gable truss 2-28
The wire 20 stretched between the front and rear ceiling units 13 is fixed to the tip of the connecting rod 19 of the preceding ceiling unit 13.

Next, while hanging the trailing ceiling unit 13a onto the hanger rail 17, move the leading ceiling unit 13 onto the winch 22.
to move it toward the gable truss 2a, and remove the preceding ceiling unit 1.
3 and the connecting plate 14 at the leading end of the trailing ceiling unit 13a are tightly connected. In this way, by connecting the leading ceiling unit 13 and the trailing ceiling unit 13a and driving the winch 22, the unit 13.13a
is towed and moved in the direction of the gable truss 2a. Furthermore, by suspending the trailing ceiling unit 13b from the hanger rail 17 and repeating the steps described above, the ceiling unit 13 can be continuously connected to the end face truss 2-2a.

Note that the connecting plate 14 is not necessarily necessary, and each ceiling unit 13 may be sequentially transported and fixed to a predetermined position. Or after transporting the connecting plate 1 of each ceiling unit 13
4 You may tie the two together.

(Effects) As described in detail above, according to the ceiling construction method according to the present invention, the ceiling is made into units, and the leading ceiling unit and trailing ceiling unit are connected and conveyed while being sent out sequentially from a fixed location. Therefore, there is no need to construct full-scale scaffolding,
This has the effect of reducing scaffolding costs and shortening the construction period because it is possible to work on the floor at the same time.

[Brief explanation of the drawing]

Figure 1 (a) is a perspective view of the large roof bridge, figure (1)) is a perspective view showing the ceiling, Figure 2 is a perspective view showing the middle of construction to help understand the construction process, Figure 3 is a plan view showing a part of the ceiling unit, Figure 4 is a partially broken side view showing the ceiling unit suspended from the large roof bridge, and Figure 5 is an explanatory diagram to explain the construction procedure. It is. 1...Large roof frame 2...Gable truss 3...
・Eave truss 4...Keel truss 5...Ceiling 6...Sub truss 7...Peripheral wall
8...Column 9...Frame member 10
...Horizontal gusset 11...Panel frame 12...
・Ceiling finishing material 13...Ceiling unit 14...Connection plate 15...Hanging bracket material 16...Hanging bolt 17...Hanger rail 18...Wheel 19...
・Connecting rod 20...Wire 21...Working scaffold 22...Winch 23...Pulley Patent applicant: Okumura Jubeis Co., Ltd.
Obayashi Co., Ltd. Composition Attorney Patent Attorney - Ken Iro Axial Circumference Patent Attorney Masaru Matsumoto Figure 1 (a)

Claims (1)

[Claims] First, the ceiling of the building is configured into small units, and then the ceiling units configured for each unit are movably supported from a certain fixed sending point to a predetermined position on the ceiling, and then A ceiling construction method comprising sequentially transporting and constructing the ceiling of the building while sending the ceiling unit from the sending point to a predetermined position.