JPS6136434A - Construction of cylindrical large roof - 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 A. Purpose of the Invention ■ Industrial Application Field The present invention relates to a construction method for constructing a large cylindrical (arch-shaped) roof of an airplane hangar or the like.

■ Conventional technology In the past, when constructing a large roof, a large temporary pedestal had to be set up and the work had to be carried out at a height tens of meters above the ground.

■ 181 Problems to be Solved by the Invention If the work is carried out in the manner described above, the cost of materials for the temporary trestle and the cost of assembling it will increase, a long construction period will be required, and the strength of each force will be reduced. Since the work is done at high places, work efficiency is likely to be reduced, quality control is likely to be inadequate, and various considerations must be made regarding safety facilities.

This invention has been made in consideration of the above, and aims to provide a safe and inexpensive method for G-dying bags with well-controlled cylindrical roofs in a short construction period.

Structure of the Invention ■ Means for Solving the Problem This invention provides a pinch (1) at the tll' (31 part, and the left and right tails (2) and the 22 part can be rotated by the pinch (1). 1tll Ljl can be installed, and after assembling structural materials, equipment work, and TK construction work on the ground with the hinoji (1) open, roof Gradually close the hinge (1) while sliding it downwards t'J (41, +
This method of constructing a large cylindrical roof is characterized in that after 41' is identified as the foundation set in a predetermined position, the hinge (1) is also fixed so that it does not rotate.

■ By using the ridge of the structure as a hinge, the left and right MS sections can be opened and closed, making it possible to easily slide the structure assembled on the ground into place. .

■ As shown in the example drawings, (1) is provided on the entire ridge part of the roof (7), and the left and right roof (2), (21' part) can be rotated by the hinge (1). It can be opened and closed.

Open the hinge (1) on the ground and press the pinch (1)
Attach the left and right structural members a■ and ■. After that, the necessary equipment work and finishing work will be carried out. At this time, the hinge (1
) part on a pedestal ■ of an appropriate height, and place the lower end of one side (
For 4), in order to later slide it to a predetermined position, make arrangements to reduce the sliding resistance when sliding by placing it on a bottom plate, etc. In addition to the above, to reduce the sliding resistance, use a rail, A-C etc. may also be used.

Place the pinch (1) on the pedestal ■ to maintain a certain amount of work space, and if you slide the lower 1f41 part to the specified position, the pinch (1) part will also be at the specified height. Since it lifts up when you try to approach it, it is placed on a pedestal 6) of an appropriate height to make it easier to lift.

In this way, you will be in the pinch (1)! @■, Once the structural materials for 27 parts have been installed, and the necessary equipment work and finishing work have been completed on the ground, the foundations that have already been constructed separately from the upper house will be rebuilt.
■、+2f' lower rI! (2) In order to fix the lower end (4r), slide the lower ald part on one side. 1" - After laying the sheath etc. under the lower rJ!41 part, lower end 4)
, (4) Slide the ′ part inward. At this time, the lower end (4)' of the other one can be slid by assembling the lower rJ14) so that it is almost at a predetermined position.

The method of sliding the lower ra +41' of the roof to the specified position 5 is to assemble the roof so that one lower rJ (4) is almost at the specified position, and when you slide the other lower ranf, the position will not shift. Temporarily tighten the hinge (1
) part with a jack or crane shade.

When the lower end (4) is slid inward, the pinch (1) is reversely raised to the position where it becomes [1] + Kana (kana) while sliding the other lower end (41' part) inward.

The sliding method can be done by inserting a wire inside the lower end 6)' and sliding it with a winch shade, or by using a reaction force receiver separately provided on the outside of the roof d and using a jack etc. good.

Under the cylindrical large roof assembled in this way rJ f4
After sliding part 1' to the specified position, install the lower * f41, (a)) on l&8, which was constructed separately, and fix the foundation and large ma together with anchor bolts, etc.

Thereafter, a stable structure can be obtained by fixing the H/D part (1) and the parts 1) (1) and (2)' by bolting or welding.

In the above embodiment, only the lower ends (4) and (4)' of one side are slid, but the present invention is not limited to this. The decision as to whether or not to do so is a matter that should be selected depending on the situation at the site.

As mentioned above, the method of the present invention is to construct IIIB by sliding the lower end of the circular I2I roof that has been assembled on the ground, but there are places where work must be carried out at heights. .

This is the Hinde fixation mentioned above. This is based on the lower end gat1. :The work must be done at a high place because it is done after fixing the building, and the installation of the ridgepole at the top of the 7-height has to be done later, but from the perspective of the overall construction, there are fewer steps, and it is a mobile type. This can be done safely on scaffolding.

C. Effects of the Invention In this invention, as mentioned above, by providing the hinges on the ridge of the cylindrical roof structure, the left and right roofs can be placed in a horizontal position, so most of the work can be done on the ground. Because it can be carried out, there is no need for large-scale temporary structures, and it is possible to build structures safely and with good quality control in a short construction period at a low cost. , it can achieve great effects quickly and cheaply.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention, and FIG. 1 shows a circle 13.
It is a perspective view of a large roof, and FIGS. 2 and 3 are sectional views showing the process. The arrow in FIG. 3 indicates the sliding direction. 1. Hinge, 2.2'... Roof, 3... Brick, 4.4
′...lower end, 5...cradle, Patent Exhibitor Obayashi Co., Ltd. Agent: Hiroshi Yamane, Figure 2, 5m

Claims (1)

[Claims] A hinge (1) is installed on the ridge (3), and the left and right roofs (2)
, (2)' part can be opened and closed because it can be rotated by the hinge (1), and after assembling the structural materials on the ground with the pinch (1) open, and performing equipment work and finishing work, etc. Lower ends (4), (4) of roofs (2), (2)'
)' part inside, gradually close the hinge (1) and fix the lower end (4) and (4)' to the foundation in the specified position, then fix the hinge (1) so that it does not rotate. Construction method of large cylindrical roof characterized by