JP2003336405A - Structure bearing foundation and construction method of the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To facilitate construction work, shorten the term of work and prevent rain leakage. <P>SOLUTION: A structure bearing foundation has a plurality of holes bored in a roof floor face of an existing building; a frame bearing member integrally having a plurality of bearing members inserted into the respective holds, a mounting member to which the plurality of bearing members are fixed, a height adjusting member mounted along positions on the mounting member respectively corresponding to the plurality of bearing members, and a frame installation member mounted on the height adjusting member; a waterproof embankment placed on the roof floor face and positioned around the mounting member; and an epoxy adhesive injected into the waterproof embankment. The waterproof embankment is positioned on the roof floor face so as to enclose the mounting member and to prevent outgoing leakage of the epoxy adhesive. The mounting member is arranged horizontally. The epoxy adhesive is injected and solidified in the holes and along the waterproof embankment and the mounting member to secure the waterproof embankment and the mounting member of the roof floor face via the solidified layer and to secure the plurality of bearing members in the holes. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a foundation for supporting a structure installed on the roof of an existing building and a method of installing the foundation.

[0002]

2. Description of the Related Art Conventionally, an air conditioner, a cooling tower,
A basic block made of concrete or the like is installed on the roof of an existing building such as a building in order to support equipment such as an outside air conditioner and a blower, and to support various structures. FIG. 6 shows an example thereof. Figure 6
The basic block 6 shown in is installed, for example, as follows.

First, the waterproof layer 2 and the heat insulating layer 3 of the roof slab 1 are partially removed, and the building concrete portion 4 is exposed. Next, the building concrete part 4 is hung, and the reinforcing bars 5 in the concrete are cut and raised. Next, a steel frame 7 for foundation legs is added thereto, concrete is poured, and then the waterproof layer 2 and the heat insulating layer 3 are restored, and further, the waterproof layer 2
Is wound up to the upper part of the leg to form the basic block 6.

Next, the mounting portion 8 is fixed to the upper portion of the base block 6 with anchor bolts 9.

[0005]

However, in the conventional foundation block 6, since it is necessary to partially remove the waterproof layer 2 and the heat insulating layer 3 of the roof slab 1, the installation work becomes large-scale and There was a problem that the construction period was long.
Further, since it is necessary to partially remove the waterproof layer 2 and the heat insulating layer 3 of the roof slab 1, even if the waterproof layer 2 is wound around the base block 6, the waterproof layer 2,
Separation and cracks generated in the heat insulating layer 3 and the concrete portion 4 of the building could not be reliably blocked, and there was a risk of rain leakage.

The present invention has been made to solve the above-mentioned conventional problems, and its purpose is to provide a structure-supporting foundation that is easy to install, has a short construction period, and does not cause rain leakage, and its foundation. To provide the installation method.

[0007]

The invention according to claim 1 is
A plurality of holes perforated on the rooftop of the existing building, a plurality of support members respectively inserted into the holes, a plate-like connection member for attaching the plurality of support members, the plurality of support members on the connection member And a foundation member integrally having a height adjusting member attached to a position corresponding to the height adjusting member, and a mounting member attached to the height adjusting member, a waterproof basin mounted on the rooftop floor, and the waterproof basin And an epoxy-based adhesive that is injected into the waterproof basin is disposed around the connecting member, and the epoxy-based adhesive is disposed on the rooftop floor so as not to leak to the surroundings, The connection member is installed horizontally, and the epoxy adhesive is injected into the hole and around the waterproof member and the connection member to be solidified, and the epoxy adhesive is connected to the waterproof member via the solidified layer. Members and the roof It said plurality of support members while fixed on the surface, characterized by comprising fixed within said hole.

The invention according to claim 2 is the foundation for supporting a structure according to claim 1, characterized in that the plurality of support members are made of reinforcing bars, deformed steel bars or bolts.
According to a third aspect of the present invention, in the structure supporting base according to the first aspect, the connecting member and the mounting member are made of steel plates. According to a fourth aspect of the invention, in the structure supporting foundation according to the first aspect, the height adjusting member is formed of a shaped steel, a steel plate, or a steel pipe.

According to a fifth aspect of the present invention, in the construction method for installing the structure supporting foundation according to the first aspect, a step of forming a plurality of holes on the roof floor of an existing building and a waterproof pad around the holes. Arranging, a step of injecting an epoxy adhesive into the waterproof case, a plurality of supporting members of the foundation member are respectively inserted into the holes, and a plate-like member having the plurality of supporting members attached thereto. The step of placing the connecting member in the waterproof case, holding the connecting member horizontally, and solidifying the epoxy adhesive.

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION The present invention will be described below based on the embodiments shown in the drawings. 1 to 4 show a structure supporting base and an installation method thereof according to an embodiment of the present invention (corresponding to claims 1 to 5). The structure-supporting foundation 10 according to the present embodiment has a rectangular shape formed of, for example, an aluminum angle member around 11 holes 14 formed in a roof slab 13 of a roof 12 of an existing building 11 such as a building. After enclosing the waterproof basin 30 with epoxy resin 50, the 11 support members 22 of the foundation member 20 are inserted into the 11 holes 14 to connect the foundation member 20. The epoxy adhesive 50 is solidified with the member 25 placed horizontally, and the base member 20 is fixed via the solidified layer 55.

The foundation member 20 includes eleven support members 22 made of reinforcing bars, deformed steel bars or bolts, and a plate-like connecting member 25 made of a steel plate to which the eleven support members 22 are attached.
And a height adjusting member 27 made of H-shaped steel attached to the connecting member 25 at positions corresponding to the 11 supporting members 22, and a plate-like placing member made of a steel plate attached to the height adjusting member 27. 29 and 29 are integrally connected by welding.

The support member 22 is set so as to be located immediately below the height adjusting member 27 via the connecting member 25. This is so that the weight of devices or the like hanging on the mounting member 29 mounted on the height adjusting member 27 is directly applied to the support member 22 without being applied to the connection member 25. The diameter and length of the support member 22 are set so that the support member 22 has a sufficient compression withstand pressure against the applied load.

Here, the connecting member 25 and the mounting member 29 are parallel to each other. The waterproof bag 30 is placed on the roof slab 13 and arranged around the connection member 25. At this time, the waterproof basin 30 is arranged around the connection member 25, and is also disposed on the roof slab 13 via an arbitrary leak prevention member so that the epoxy adhesive 50 does not leak to the surroundings.

Next, a method of installing the structure supporting foundation according to this embodiment will be described. First, in the area where the structure supporting foundation 10 is installed, the building concrete building 17 is drilled through the waterproof layer 15 and the heat insulating layer 16 without removing the waterproof layer 15 and the heat insulating layer 16 of the roof slab 13.
Make 11 holes 14 in Next, waterproof wrap 3 around it
Place 0. At this time, a publicly known seal is applied to the boundary with the roof slab 13 so that the epoxy resin 50 injected later does not leak to the surroundings.

Next, the epoxy resin 50 is placed in the waterproof bag 30.
Inject. Next, the foundation member 20 is placed in the 11 holes 14.
11 of the support members 22 are respectively inserted to adjust the roof slope and the partial level difference, and the connection member 25 of the foundation member 20 is horizontally mounted and the epoxy adhesive 5
Hold until 0 solidifies. And epoxy resin 5
When the solidification of 0 is confirmed, the installation method is completed.

According to the structure supporting base 10 thus obtained, as shown in FIG. 4, when the eleven holes 14 are drilled, the waterproof layer 15, the protective layer 16, the building concrete building Delamination around hole 14 and crack 14a generated in 17
The epoxy resin 50 soaks into the above, and the hole 14 and the waterproof layer 15, the protective layer 16, and the building concrete driving body 17 are surely isolated from each other, and the intrusion of rainwater or the like can be surely prevented.

On the surface side of the roof slab 13,
Since the periphery of the hole 14 is fixed by the solidified layer 55 of the epoxy resin 50 which is solidified through the waterproof bag 30, the hole 14
It is not possible for rainwater to enter. In the foundation member 20 fixed via the solidified layer 55, the eleven support members 22 are connected to the height adjusting member 2 via the connecting member 25.
Since it is set so as to be located immediately below 7, the weight of the equipment and the like that is hung on the mounting member 29 that is mounted on the height adjusting member 27 does not hang on the connecting member 25, and the weight of the 11 supporting members is set directly. 22 and is transmitted to the building concrete driving body 17 via the fixing layer 25.

Therefore, it becomes possible to maintain a sufficient compression pressure resistance against the applied load. In addition, according to the present embodiment, without removing the waterproof layer 15 and the heat insulating layer 16 of the roof slab 13, a drill is used to penetrate the waterproof layer 15 and the heat insulating layer 16 to form eleven holes 14 in the building concrete vehicle 17. open,
Since the waterproof bag 30 is placed around it, the epoxy resin 50 is injected, and the foundation member 20 is attached, the installation work is easier and the construction period can be shortened as compared with the conventional installation method.

In the above embodiment, the height adjusting member 2
Although the case where H-section steel is used as 7 has been described, FIG.
A round pipe 27a may be used as shown in FIG. Also in this case, the round pipe 27 a is located right above the support member 22. In addition, in the above embodiment, 11 support members 2 are provided.
Although the case where 2 is used has been described, the number of the support members 22 can be arbitrarily changed according to the weight of the devices mounted on the foundation member 20.

Further, the hole 14 to be bored is the support member 22.
It is decided according to the number of. Further, in the above embodiment,
The case where the mounting member 29 has a plate shape has been described, but the mounting member 29 is not limited to a plate shape and may have any structure as long as it can support a structure and is not particularly limited. Also, the height adjusting member 2
7 can be arbitrarily changed according to the installed height of the applied structure.

Although the case where the roof slab 13 is applied as the floor surface of the roof has been described, it may be a pillar on the lower floor.

[0022]

As described above, according to the present invention, the support member of the foundation member is inserted into the hole formed in the roof slab of the existing building or the pillar on the lower floor, and the existing member is inserted through the epoxy resin. Since the foundation members are fixed to the building, there are advantages over the conventional installation method that the installation work is easier, the construction period is shorter, and there is no leakage of rain.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing a structure supporting foundation and a foundation member according to an embodiment of the present invention.

FIG. 2 is a side view showing a foundation member according to an embodiment of the present invention.

FIG. 3 is a plan view of the foundation member shown in FIG.

FIG. 4 is an enlarged cross-sectional view showing the operation of the structure supporting foundation and the foundation member according to the embodiment of the present invention.

FIG. 5 is a plan view of another foundation member according to the present invention.

FIG. 6 is a cross-sectional view showing a conventional basic block.

[Explanation of symbols]

10 Structural support foundation 11 Existing building 12 rooftop 13 roof slabs 14 holes 15 waterproof layer 16 Thermal insulation layer 17 Building concrete building 20 Foundation members 22 Support member 25 Connection member 27 Height adjustment member 27a Round pipe 29 Mounting member 30 waterproof 55 Solidified layer 50 Epoxy resin

Claims (5)

[Claims] 1. A plurality of holes perforated on a rooftop of an existing building, a plurality of support members respectively inserted into the holes, a plate-like connecting member for attaching the plurality of supporting members, and a connecting member on the connecting member. A base member integrally having a height adjusting member attached to each of the plurality of supporting members at a position corresponding to each of the plurality of supporting members, and a mounting member attached to the height adjusting member, and a waterproof basin mounted on the rooftop floor surface. An epoxy-based adhesive injected into the waterproof basin, the waterproof basin being disposed around the connection member and on the rooftop floor so that the epoxy-based adhesive does not leak to the surroundings. And the connection member is installed horizontally, the epoxy adhesive is injected into the hole and around the waterproof basin and the connection member to be solidified, and the epoxy adhesive is solidified through the solidified layer. Waterproof bag and the connection A member supporting member is fixed to the floor surface of the roof and the plurality of supporting members are fixed to the inside of the hole. 2. The structure support base according to claim 1, wherein the plurality of support members are made of reinforcing bars, deformed steel bars or bolts. 3. The structure support base according to claim 1, wherein the connecting member and the mounting member are made of steel plates. 4. The structure supporting base according to claim 1, wherein the height adjusting member is formed of a shaped steel, a steel plate, or a steel pipe. 5. The method for installing the structure supporting foundation according to claim 1, wherein a plurality of holes are bored in the rooftop floor surface of the existing building; A step of injecting an epoxy adhesive into the waterproof case, and inserting a plurality of support members of the foundation member into the holes, and attaching a plate-like connecting member to which the plurality of support members are attached to the waterproof case. And a step of holding the connecting member horizontally and solidifying the epoxy adhesive, and installing the foundation for supporting a structure.