JPH0280765A - Lateral drawing method - Google Patents

Abstract

PURPOSE:To make it possible to correct easily and anchor position of a pulled construction making by fulcrum of at least one point adjusting balance dynamically to bear a vertical load of the pulled construction. CONSTITUTION:A roofing frame 1 is of a steel framed truss construction with a gentle slope from the center to both wings thereof, main post 2 is provided to the center, and side posts 3-3 are arranged to the both wing ends. After that, the base ends of the main post 2 and side posts 3-3 are put on guide members such as rails 4 etc. laid in the direction of a beam to pull a roofing frame 1 and, at the same time, the base end of the main post 2 is supported at a position to be lifted to the extent that the side posts 3-3 float more or less from the rails 4 so that it is capable of sliding. According to the constitution, a positioning method can be easily made in case of anchoring the pulled construction.

Description

[Detailed Description of the Invention] (Industrial Application Field) When constructing the upper frame (roof, beam, etc.) of a large space structure such as a gymnasium, factory, or market, the present invention is designed to install the frame on a fixed scaffold on one side. This method involves assembling each unit one by one and then sliding it horizontally to the opposite side in order to finally assemble the entire frame.

(Prior Art) The conventional horizontal pulling method generally involves attaching one end of a high-tensile steel bar at several locations in the direction between the beams of a towed structure, and guiding and pulling this in the direction of the girders using jacks.

Therefore, the towed structure is supported by the guide rail or the like so that it can run and move freely, and the supporting points (such as the side pillars) are slightly deformed and moved in the front and back and left and right directions.

- After completing one cycle or one day of horizontal pulling, the towed structure is temporarily secured to the frame or foundation with bolts to prevent unforeseen accidents, such as deformation or movement due to earthquake forces.

After each temporary fixing, a jack or the like was used as a means to correct the spread of the side pillars, and alignment was performed.

(Problem to be solved by the invention) However, in large-span structures, the larger the span, the greater the total weight of the structure, and especially in triangular cross-section structures where the weight of the central part in the span direction is larger than the end parts. However, if only the ends are pulled as in the past, the twisting and deformation in the biaxial directions are large, and the range of correction during temporary fixing and final fixing is large. The task of correcting this spread was extremely difficult.

The present invention has been made in view of the above-mentioned circumstances, and its purpose is to provide a horizontal pulling method that can easily correct the anchoring position of a towed structure.

(Means for Solving the Problems) In order to achieve the above object, the horizontal pulling method of the present invention is a horizontal pulling method in which a towed structure is guided in a desired direction at any number of locations. The vertical load of the towed structure is borne using at least one dynamically balanced point as a fulcrum.

(Function) Since one point in the direction between the beams is used as a fulcrum, the other parts are floating or are in a state where they are likely to float.

Therefore, until the towed structure is anchored, the pillars other than the pillars that serve as the fulcrum do not bear the vertical load.
Its proximal end can easily move back and forth and left and right.

Therefore, it becomes extremely easy to align the base end portions of each column to the proper fixing position.

(Embodiments) Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings.

FIG. 1 shows a unitized roof frame 1 for transporting the frame of a building to be constructed one by one to a predetermined position while assembling the frame of a building by dividing it into several units in the column direction.

This roof frame 1 has a steel truss structure with a gentle inclination angle from the center to both wings, and has a main pillar 2 in the center and side pillars 3-3 at the ends of both wings.

The roof frame 1 is pulled by placing the base ends of the main pillars 2 and side pillars 3-3 on guide members, such as rails 4 laid in the row direction. That is, the main pillar 2 and the side pillars 3-3 are used as guide tube locations.

The main column 2 is slidably supported at its base end at a position where the side column 3-3 is raised slightly above the rail 4.

The details of the portion supporting the base end of the main pillar 2 are shown in FIG. The figure shows a state in which the roof frame 1 has been moved to a predetermined position and the main pillars 2 are temporarily fixed.

The main column 2 is a round column, and integrally includes a disk-shaped bottom plate 5 on its bottom end surface. The horizontal guide rail 6 of the main column 2 is made by pasting a stainless steel plate 8 on a pedestal 7 laid in a straight line in the column direction, and on the other side of the bottom plate 5 is an ultra-high molecular weight polyethylene plate such as the product name "Himolar". The sliding bearing 9 is attached via the sliding bearing holding plate 20.

Furthermore, there are guide members 10 installed on both sides of the main column 2 in the direction of movement, with the flange surfaces of H-beams perpendicular.
The outer side of the guide member 10 is held down by a guide slip stopper 11 to prevent the guide member 10 from swinging laterally. That is, the guide slippage stopper 11 is an "L" shaped Ir surface fixed to the pedestal 7 of the guide rail 6.
A slight gap is left between the vertical side and the guide member 10, and this gap is filled with mortar 12 to prevent the guide member 10 from shifting laterally.

The sliding support 9 is made a little thicker so that the base end of the side column 3 is slightly raised, so that the main column 2 bears almost the entire load of the roof frame 1.

Therefore, after jacking up the main pillar 2 and removing the sliding support 9, the main pillar 2 is jacked down and fixed together with the side pillars 3.

The figure does not show the final fixation, but the temporary fixation state after being towed to the target position, and a steel camber 13 is driven between the inner flange of the guide member 10 and the side of the bottom plate 5 to eliminate the lateral gap. , the bottle 14 is inserted into the flange of the guide member 10 and the side of the bottom plate 5 to prevent the main column 2 from moving forward, backward, left or right.

On the other hand, the side pillar 3 will be explained with reference to FIG.

In this structure, side columns 3 are placed on rails 4 laid on a frame 15. A guide rail 17 is provided on the inner surface of the frame 15, with a vertical flange of H-shaped steel supported by a bracket 16.

Furthermore, a lateral shift prevention arm 18 is provided that hangs down from the side surface of the side column 3 toward the guide rail 17.

When pulling horizontally, the level of main pillar 2 is raised, so
The main pillar 3 swings from side to side using the bottom end face as a fulcrum. It becomes like "Yajirobee".

At that time, even if a force that causes the side column 3 to move laterally acts, the lateral shift prevention arm 18 and the guide member 1 on the main column 2 side
0 prevents displacement in the thrust direction.

However, when temporarily fixing the side pillar 3, a jack 19 is inserted between the inner surface of the frame 15 and the inner side of the lateral slip prevention arm 18.
Set up. This jack 19 aligns the lower part of the side post 3 with the temporary fixing position. Since almost no vertical load is applied to the side column 3, the adjustment load by the jack 19 is extremely light compared to the case where the side column 3 bears a vertical load.

(Effects) As explained in detail above, the horizontal pulling method of the present invention slightly increases the support height of at least one arbitrary point that can be dynamically balanced as a fulcrum of the towed structure, and the towed structure Since the vertical load of 1 is borne almost at this arbitrary point, it is possible to easily align the towed structure when fixing it.

[Brief explanation of the drawing]

Figure 1 is a front view illustrating the towed structure, Figure 2 (a)
2(b) is a front view showing the base of the main pillar, FIG. 3(a) is a plan view of the base of the side pillar, and FIG. 3(b) is a plan view of the base of the main pillar. It is a front view showing the base of a side pillar. 1...Roof frame 3...Side Column 5...Bottom Plate 7...Plinth 9...Sliding support 11...Guide Anti-slip 13... Steel camber 15... Body 17... Guide rail 19... Jacket 2

Claims (1)

[Claims] (1) In the horizontal pulling method in which a towed structure is guided in a desired direction at any number of locations, at least one mechanically balanced point among the guide tubes is used as a fulcrum to bear the vertical load of the towed structure. The horizontal construction method is characterized by the fact that