JP3124152B2 - Collapse prevention frame - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a construction method in which a roof of a building is assembled on a concrete foundation, and this part is pushed up by a jacking device for a building, and then a wall shaft assembly or an outer wall material is assembled in the space. The present invention relates to a frame for preventing collapse.

[0002]

2. Description of the Related Art As a method of constructing a prefabricated house or the like, a construction method of assembling a building while lifting building materials with a truck crane has been considered.

[0003]

However, when performing construction work in densely populated areas or places where approach roads are narrow, truck cranes cannot be used in some cases.

Therefore, a method of assembling a building from the roof of a building on a concrete foundation and sequentially jacking up the finished portion with a building jack device has been proposed by the present applicant.

[0005] When the jack-up is performed, a frame capable of withstanding a load in the horizontal direction is arranged between the concrete foundation and the floor beam or the hut beam, and the building is finished safely even when the wind is blowing strongly. The upper part can be jacked up.

[0006]

The collapse prevention frame of the present invention is used when sequentially jacking up from the finished upper part of a building, and includes a brace-reinforced upper frame and a brace-reinforced upper frame. Are connected by a hinge, and the lower frame and the upper frame can be folded or opened with the hinge as a fulcrum.The lower part of the lower frame is pivotally attached to a seat plate fixed to the top end face of the concrete foundation, The upper part of the upper frame is pivotally attached to seat plates fixed to floor beams or shed beams, and each of the seat plates is disposed on the indoor side off the center of assembly that divides the width of the concrete foundation into two.

[0007]

The collapse prevention frame of the present invention is provided at least on four sides between the floor beam or the hut beam and the concrete foundation. When the floor beam or the hut beam is jacked up, the collapse prevention frame is gradually opened, so that even if a horizontal load is applied, the finished upper part of the building can be raised to a predetermined height without collapsing.

Further, when the floor beam or the hut beam is jacked up, the collapsing prevention frame does not interfere with the outdoor side at the center of the assembling, so that the frame assembly can be quickly mounted with the collapsing prevention frame attached. Can be implemented.

[0009]

1 and 2 show an embodiment of a collapse prevention frame according to the present invention.

The collapse prevention frame 200 of the present invention connects a lower frame 2 reinforced with a brace 1 and an upper frame 3 reinforced with a brace 1 with a hinge 4, and connects the lower frame 2 and the upper frame 3 with the hinge 4 as a fulcrum. It can be folded and opened.

The lower portion of the lower frame 2 is pivotally attached to a seat plate 6 fixed to the top end surface 51 of the concrete foundation 5, and the upper portion of the upper frame 3 is fixed to the bottom surface 71 of the floor beam 7 or the bottom surface 81 of the hut beam 8. Is pivotally attached to the seat plate 9.

The U-shaped hinge member 41 is connected to the lower frame 2.
Are fixed to the upper ends of the vertical columns 21 disposed on both sides of the upper frame 3, and the lower ends of the vertical columns 31 disposed on both sides of the upper frame 3 are connected to the hinge members 41.
The hinge 4 is formed by connecting the vertical column 31 and the hinge member 41 with a pivot pin 42. But,
The configuration of the hinge 4 is not limited to this.

For example, the hinge member 41 is connected to the upper frame 3
Alternatively, the upper end of the vertical pillar of the lower frame 2 may be fixed to the lower end of the vertical pillar 31, inserted into the hinge member 41, and connected by the pivot pin 42. Further, the lower frames 2 and the upper frame 3 may be connected directly to each other by the pivot pins without using the hinge member 41.

The seat plate 6 is a top end surface 51 of the concrete foundation 5.
Is fixed in an upward U-shape. This fixing is performed using anchor bolts 62 (see FIG. 2) erected on the top end surface 51.

The anchor bolt 62 is planted such that the outer edge 63 of the seat plate 6 is located on the indoor side (the right side in FIG. 2) where the mounting center C for dividing the width of the concrete foundation 5 is removed. .

The lower end of the vertical column 21 of the lower frame 2 is inserted into the seat plate 6, and the vertical column 21 and the seat plate 6 are connected to each other by a pivot pin 61.
Connect with.

The seat plate 9 is fixed to the bottom surface 71 of the floor beam 7 or the bottom surface 81 of the hut beam 8 in a downward U-shape. This fixing is performed using a tightening bolt 92 (see FIG. 2) attached to the floor beam 7 or the hut beam 8.

The fastening bolt 92 is formed such that the outer edge 93 of the seat plate 9 has the bottom surface 71 of the floor beam 7 or the bottom surface 81 of the cabin beam 8.
Is mounted on the indoor side (right side in FIG. 2) where the extension of the assembly center C is removed.

If the width of the seat plates 6, 9 and the width of the frame 300 are the same, for example, the center C of assembly is located at the center position where the width of the concrete foundation 5 is bisected as in this embodiment.

The upper end of the vertical column 31 of the upper frame 3 is inserted into the seat plate 9, and the vertical column 31 and the seat plate 9 are connected to each other by pivot pins 91.
Connect with.

An upper horizontal rail 22 and a lower horizontal rail 23 are provided between the lower frame 2 and the vertical columns 21 and 21. The upper end and the lower end of the vertical pillar 21 project vertically from the upper horizontal rail 22 and the lower horizontal rail 23.

The vertical columns 31, 31 of the upper frame 3
An upper horizontal rail 32 and a lower horizontal rail 33 are arranged between them. The upper end and the lower end of the vertical column 31 project vertically from the upper horizontal rail 32 and the lower horizontal rail 33.

The vertical columns 21, 31 and the upper and lower horizontal rails 22, 23, 32,
33 are all formed of channel steel.

The inner space between the lower frame 2 and the upper frame 3 is reinforced by the brace 1. Although not shown, a turn buckle is provided on the brace 1 so that the reinforcement balance can be adjusted.

An anchor bolt 301 is erected on the ceiling top end surface 51 on the outdoor side (left side in FIG. 2) of the assembly center C.

The anchor bolt 301
The base side of the frame 300 is fixed, and the lower inner edge 302 of the frame 300 has an assembly center C removed from the outdoor side (FIG. 2).
On the left).

A fastening bolt 303 is attached to the floor beam 7 or the hut beam 8 on the outdoor side of the assembly center C.

The tightening bolt 303 is for fixing the ceiling side of the frame assembly 300, and is mounted so that the upper inner edge 304 of the frame assembly 300 is located on the outdoor side where the mounting center C is removed. .

The above-described collapse prevention frame 200 of the present invention
Is used when jacking up the finished building upper part A1 from above the concrete foundation 5. Therefore, when the upper part A1 of the building is lifted to a predetermined height, and a wall frame or an outer wall material is assembled between the concrete foundation 5 and the floor beam 7 or the hut beam 8, the collapse prevention frame 20 is formed.
0 is removed. Removed collapse prevention frame 200
After that, a wall frame is installed.

FIG. 4 schematically shows a plan view of the floor beam 7 or the hut beam 8. The collapse prevention frame 200 is provided on all sides of the floor beam 7 or the hut beam 8 to provide an upper part A 1 of the building.
Jack up.

FIG. 3 is a side view showing the movement of the collapse prevention frame 200 used when jacking up the upper part of a one-story building.

The hut beam 8 is placed on the concrete foundation 5 via a temporary material which is a spacer. At this time, the top end face 51 of the concrete foundation 5 and the hut beam 8 are folded with the collapse prevention frame 200 folded. It is attached between the bottom 81

The hut beam 8 is gradually jacked up using the building jack device 100. Collapse prevention frame 2
Since 00 is disposed on all sides, a horizontal load is supported by the collapse prevention frame 200. Therefore, the building upper part A1 can be jacked up without being affected by a horizontal load such as wind pressure.

When the upper part A1 of the building is lifted to a predetermined height, the fall prevention frame 200 is arranged such that the lower frame 2 and the upper frame 3 are slightly bent toward the indoor side when viewed from the side. This is to make it easy to remove the collapse prevention frame 200.

With the jack up in this way,
The base of the frame 300 is fixed to the top end surface 51 of the concrete foundation 5 by anchor bolts 301, while the ceiling is fixed to the bottom surface 71 of the floor beam 7 or the bottom surface 81 of the shed beam 8 by fastening bolts 303.

Note that even if the building has two or more floors, the jack-up construction method is used. At this time, the collapse prevention frame 200 is disposed between the floor beam 7 and the hut beam 8 or between the floor beam 7 and the concrete foundation 5.

[0037]

According to the present invention, when a floor beam or a shed beam is jacked up, the collapse prevention frame is gradually opened to lift the finished upper portion of the building to a predetermined height even if it receives a horizontal load without collapse. Can be.

Further, after the floor beam or the hut beam is jacked up, the frame can be quickly mounted without interfering with the collapsible frame while the collapsible frame is still attached. Therefore, workability is significantly improved.

[Brief description of the drawings]

FIG. 1 is a front view showing a collapse prevention frame of the present invention.

FIG. 2 is an enlarged side view showing a mounting structure of a seat plate.

FIG. 3 is a side view showing the movement of the collapse prevention frame of the present invention.

FIG. 4 is a schematic plan view in which a collapse prevention frame is provided in four directions with respect to a floor beam or a shed beam.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Brace 2 Lower frame 3 Upper frame 4 Hinge 5 Concrete foundation 6 Seat plate 7 Floor beam 8 Shed beam 9 Seat plate 200 Collapse prevention frame A1 Building upper part C Assembly center

Continuation of the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) E04G 21/14 E04B 1/35

Claims (1)

(57) [Claims] The present invention is used for sequentially jacking up a building from the finished upper portion. A lower frame reinforced by a brace and an upper frame reinforced by a brace are connected by a hinge, and the hinge is used as a fulcrum. The lower frame and the upper frame can be folded and opened, the lower part of the lower frame is pivoted to a seat plate fixed to the top end of the concrete foundation, and the upper part of the upper frame is a floor beam or shed beam. A collapsible frame, which is pivotally attached to a fixed seat plate, wherein each of the seat plates is disposed on the indoor side where an assembling center that divides the width of the concrete foundation is removed.