JPS5814902B2 - How to lift building units - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for lifting building units assembled from panels intended as load-bearing walls.

The building unit method, which is known as a method for industrializing housing, assembles building units in a factory as three-dimensional objects of a predetermined size that can be transported, and then connects multiple buildings at the construction site to create a building. Because these building units are to be completed, it is necessary to lift these building units during construction work.

When a building unit has a steel frame with pillars and beams at the four corners connected to a rigid frame structure, it is generally done to attach a fishing bracket to this frame and lock a lifting jig thereto to lift it. ing.

However, if the building unit is assembled from panels that serve as load-bearing walls and does not have a particularly strong frame as described above, the above-mentioned lifting method cannot be adopted.

The present invention has been made to provide a method for easily and safely hoisting a building unit assembled by panels, and its gist is to provide a method for easily and safely hoisting a building unit assembled by panels, and the gist thereof is to lift each of at least one pair of opposing side edges of a floor panel. A wall panel serving as a load-bearing wall is erected along the upper part of the wall panel, and a ceiling panel is attached to the upper part of the wall panel, or the ceiling panel is attached to the upper part of the building unit at each of the four corners of the assembled building unit. Threaded rod insertion passages penetrating the top and bottom of the building unit are provided, and a backing plate is attached to each of the four corners of the lower surface of the floor panel, and the female threaded portion of this backing plate is aligned with the open end of the threaded rod insertion passage. A threaded rod, which is longer than the height of the building unit, is inserted into each threaded rod insertion passage, the lower end of each threaded rod is screwed into the female thread part, and the upper end of each threaded rod is placed in a lifting jig. The present invention resides in a method for hoisting building units, characterized in that the building units are hoisted by connecting them together.

Next, the present invention will be explained with reference to the drawings.

FIG. 1 shows an example of a building unit according to the present invention.

In the figure, 1 is a floor panel of a building unit, and a facing material such as structural plywood or particle boat 1 is placed on the top surface of the floor framework assembled in a square shape by joists 11, 11, ...
2 is installed.

2a, 2a and 2b are wall panels, all of which are
Wall panels 2a, 2a each have a wall frame assembled by vertical frames 2L2L..., an upper frame 22, and a lower frame 23.
is arranged along a pair of opposite side edges of the floor panel 1, and the wall panel 2b is arranged along the other side edge, and the lower frame 23 is nailed to the floor panel 1, respectively, so as to be erected. A load-bearing wall is constructed by attaching facing materials 24 such as gypsum board or wood cement board to both the inside and outside of the wall framework.

In addition, interior and exterior finishing is applied to the outside of these panel materials 24, and heat insulating materials are loaded inside each wall panel, and openings such as doorways and windows are formed as necessary. There is.

The adjacent wall panels 2a and 2b are tightly connected by nailing the outermost vertical frames 21 of the wall frameworks against each other.

The illustrated building unit is an example in which wall panels are erected on three side edges of the floor panel 1, but the building unit has wall panels erected depending on which part of the building it constitutes. and are erected on at least one pair of opposing side edges of the floor panel 1.

Also, no ceiling panels are specifically attached to the illustrated building unit.

A separately prepared roof is installed on top of the wall panel, or the floor panel of the building unit on the upper floor installed on top of this is used as the ceiling of the building unit on the lower floor. However, the building unit in the present invention may be one to which a ceiling panel is attached.

Figure 2 shows a horizontal section of the building unit.

In the figure, 3a, 3a, 3b, 3b are all holes, and the holes 3a, 3a are inside the outermost vertical frames 21a, 21a of the wall panels 2a, 2a, and the holes 3b, 3b are inside the wall panels 2a, 2a. These holes 3a are provided inside the other outermost vertical frames 21b and 2lb of the wall panels 2a and 2a, passing through the upper frame 22 and the lower frame 23 of the wall panels 2a and the lower frame 23 and the floor panel 1, respectively.
, 3a, 3b, and 3b, threaded rod insertion passages are formed at each of the four corners of the building unit, passing through the inside of the wall panel and penetrating the top and bottom of the building unit.

Note that the wall panel 2a forms a corner part with the wall panel 2b on the side of the vertical frame 2ib, so the wall panel 2a uses the vertical frame 21 to reinforce this corner part.
A vertical frame 21c is tightly connected to b via feed trees 25, 25.

And the hole 3b is connected to these vertical frames 21b, 21c, the fodder 25,
25 and located within the forming gap.

Figure 3 shows a vertical section through the building unit.

In the figure, reference numeral 4 denotes a backing plate, which is made of an iron plate in the shape of a right isosceles triangle, and is provided with a female threaded portion 41.

At each of the four corners of the lower surface of the floor panel 1, the backing plate 4 aligns the female threaded portions 41 with the aforementioned holes 3a1 or 3b,
It is nailed and installed.

Note that the mounting plate 4 may be installed after the threaded rod 5 is screwed.

However, in order to lift the building unit using levers, threaded rods 5 are inserted into screw insertion passages formed by holes 3a and 3b at the four corners of the building unit, and the lower end of each screw rod 5 is connected to the female threaded portion 41 of the backing plate 4. Furthermore, an eye bolt 6 is screwed into the upper end, and the lifting jig 7 is connected via this eye bolt 6 to a lifting jig 7 as shown in FIG.

Since the method for lifting the building unit of the present invention is as described above, the building unit, which is assembled with panels used as load-bearing walls and does not have a frame of a rigid frame structure, can be deformed,
It can be lifted easily and safely without fear of damage.

In addition, since the threaded rod insertion passage is provided inside the wall panel, there is no damage to the appearance of the building, and the equipment required for lifting the building unit will not be installed protruding to the side of the building unit. It is extremely easy to lift up and place objects one after another and place them close to each other.

[Brief explanation of the drawing]

FIG. 1 is a partially cutaway perspective view showing an example of a building unit according to the present invention, FIG. 2 is a partially cutaway horizontal sectional view, and FIG.
The figure is a partially omitted vertical sectional view, and FIG. 4 is a perspective view for explaining an embodiment of the present invention. 1: Floor panel, 11: Joist, 12: Surface material, 2a, 2b:
Wall panel, 21: vertical frame, 21a, 21b: outermost vertical frame, 21c: vertical frame, 22: upper frame, 23: lower frame, 24: paneling, 25: fodder, 3a, 3b: hole, 4 : Our board, 41
: Female threaded part, 5: Threaded rod, 6: Eye bolt, 7: Lifting jig.

Claims (1)

[Claims] 1 A wall panel serving as a load-bearing wall is erected along each of at least one pair of opposing side edges of a floor panel, and a ceiling panel is attached to the top of this wall panel or assembled without being attached. A threaded rod insertion passage passing through the inside of the wall panel and penetrating the top and bottom of the building unit is provided at each of the four corners of the building unit, and a duty plate is attached to each of the four corners of the lower surface of the floor panel, and this plate has a female screw portion. The screw rods are provided so that their positions match the open ends of the threaded rod insertion passages, and the threaded rods, which are longer than the height of the building unit, are inserted into each threaded rod insertion passage, and the lower ends of each threaded rod are connected to the female threads. A method for lifting a building unit, comprising: connecting the upper end of each threaded rod to a lifting jig to lift the building unit.