JPH1121916A - Basement made of steel and construction method thereof - Google Patents

Abstract

PROBLEM TO BE SOLVED: To save labor for the execution of works, and to reduce construction cost by a method wherein wall panels made of steel are connected onto foundation slabs constructed on a trench bottom, a wall section is built by installing a plurality of the wall panels while lower end sections are fixed onto the foundation slabs by anchor bolts and a roof section is erected between the upper end sections of the wall sections. SOLUTION: Rubble 15 is spread all over a trench bottom 14 dug down in specified depth, levelling concrete 16 is placed, and reinforcing bars are arranged. Wall panels 2 made of steel are disposed in upright onto the reinforcing bars while being mutually connected, and the wall section of the basement made of steel is constructed. Anchor bolts are provided droopingly into the reinforcing bars from the boltholes of the outer frame materials of each wall panel 2 made of steel. Roof panels 4 made of steel are stretched among the wall panels 2, 2 made of steel, the roof panels 4 made of steel are joined mutually, and the end sections of the roof panels 4 made of steel are connected at the upper end sections of the wall panels 2 made of steel, and the roof section of the basement made of steel is built. Accordingly, steel materials in a floor section can be economized, and cost can be reduced largely.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a steel basement mainly constructed as a basement of a house and a construction method thereof.

[0002]

2. Description of the Related Art Recently, an ordinary house is often provided with a basement. The applicant has so far constructed this kind of basement, shortening the construction period,
In order to save labor, the steel basement was constructed by installing and constructing steel panels for roofs, walls, and floors while connecting them with joining bolts. Has also filed an application.

[0003] However, if the floor, wall, and roof of the basement are all made of steel panels, the use of steel frames increases significantly, construction costs increase, and it is difficult to reduce costs. was there. In addition, large loads from the basement floor and the ground floor act on the floor, so if the floor was constructed with steel floor panels as before, large loads from the ground floor including the basement floor would be applied to the ground. There was also a problem that it was not possible to reliably transmit the information, and it was not possible to build a very large basement or a ground floor.

[0004] The present invention has been made to solve the above problems, and an object of the present invention is to provide a steel basement and a method of constructing the same, which enable labor saving of construction and reduction of construction cost. .

[0005]

SUMMARY OF THE INVENTION In order to solve the above problems, a steel basement according to the present invention is constructed by constructing a reinforced concrete base slab at a root cut down to a predetermined depth. A steel wall panel is joined to each other, a lower end is fixed to the base slab with a plurality of anchor bolts, respectively, and a plurality is installed to construct a wall, and a roof is constructed between the upper ends of the wall. It becomes. At this time, the lower end of the steel wall panel is preferably embedded in the concrete of the foundation slab.

Further, in the steel basement according to the present invention, a reinforced concrete foundation slab is constructed on a root bottom dug down to a predetermined depth, and a metal base is partially mounted on the foundation slab. It is buried and installed in the concrete of the slab, steel wall panels are joined to each other on this foundation, and a plurality of lower ends are fixed to the base slab with the joint fittings to install a plurality of walls to construct a wall portion, and A roof is constructed between the upper ends of the walls.

Further, according to the method of constructing a steel basement according to the present invention, a reinforcing steel bar of a foundation slab is arranged at a root bottom dug down to a predetermined depth, and then a steel reinforcing bar is formed on the reinforcing steel bar. The wall panels are erected while being joined together to form a wall, and then concrete is poured into the root bottom to form a foundation slab integral with the wall, and then the upper end of the wall It is characterized in that a roof part is constructed between the parts.

[0008]

1 to 7 show an embodiment of the present invention. In the drawings, reference numeral 1 denotes a foundation slab constructed of reinforced concrete at a root bottom dug down to a predetermined depth. Reference numeral 2 denotes a steel wall panel which stands on the base slab 1 while being joined to each other to constitute a wall of the steel basement. Anchor bolts for fixing the steel wall panel 2 around the foundation slab 1, and reference numeral 4 denotes a steel bridged between the upper ends of the wall composed of the steel wall panel 2 and constituting the roof of the steel basement. It is a roof panel made of.

The foundation slab 1 is provided with a necessary amount of reinforcing reinforcing bar 1a in consideration of the supporting force of the supporting ground, the load acting on the basement floor and the ground floor, and the cast-in-place concrete on which the concrete 1b is poured. Depending on the predetermined thickness (30-40
cm).

Each of the steel wall panel 2 and the steel roof panel 4 has a plurality of outer frame members 5 framed in a rectangular shape, for example.
And a plurality of middle frame members 6 installed in parallel between the facing outer frame members 5, 5, and attached to an outer portion of a shaft set including the outer frame members 5 and the middle frame members 6. And a face plate 7 (see FIGS. 2 and 3).

The outer frame members 5 and the outer frame member 5 and the middle frame member 6
Are connected to each other by welding or bolting, and the face plate 7 is attached to the outer frame member 5 and the middle frame member 6 by welding. Further, bolt holes 5a are formed in the outer frame member 5 at predetermined intervals. The outer frame member 5 and the middle frame member 6 are formed from a channel steel, an H-section steel, an angle steel or a strip steel, and the face plate 7 is formed from a steel plate.

The steel wall panels 2 and 2 and the steel roof panels 4 and 4 thus configured are bolted to each other by a plurality of joint bolts (not shown) penetrating through the bolt holes 5a of the outer frame member 5. The steel wall panel 2 is erected around the base slab 1 while being fixed by a plurality of anchor bolts 3 penetrating through bolt holes 5a of the outer frame member 5. In addition, between adjacent steel wall panels 2,2, between outer frame members 5,5 of adjacent steel roof panels 4,4, and between steel wall panels 2,4.
At the joint between the outer frame members 5 and the steel roof panel 4, a sealing material (not shown) for stopping water is interposed.

When the size of the basement is large or the shed is heavy, a partition wall a is also provided between the base slab 1 and the roof to double as a bearing wall. (See FIG. 1). This partition wall a
The steel wall panels 2 are connected to each other in the above-described configuration, and are fixed to the base slab 1 and the steel roof panel 4 to be installed.

FIGS. 4 to 7 show a method of fixing the steel wall panel 2 to the foundation slab 1 in particular.

In FIG. 4 (a), anchor bolts 3 are provided on the base slab 1 at predetermined intervals, and the anchor bolts 3 are bolt holes 5a of the outer frame member 5 of the steel wall panel 4.
And an anchor nut 8 is screwed into a penetrating portion of the anchor bolt 3.

In FIG. 4 (b), the lower end of the steel wall panel 2 is fixed on the base slab 1 by the anchor bolts 3 and a drain groove having a predetermined depth is formed around the base slab 1. 9 is formed continuously along the wall of the steel basement, into which the lower end 7a of the face plate 7 of the steel wall panel 2 projects.

In FIG. 4 (c), the lower end of the steel wall panel 2 is fixed on the base slab 1 by the anchor bolt 3, and a drain groove 9 is formed around the base slab 1 by the steel. It is formed continuously along the wall of the basement,
In addition, a sealing material 10 is filled in the drain groove 9 so as to completely close the gap between the base slab 1 and the steel wall panel 2.

In FIG. 4 (d), the lower end of the steel wall panel 2 is fixed around the base slab 1 by anchor bolts 3, and a drain groove 9 is formed around the base slab 1. It is formed in a double continuous manner along the wall of the steel basement, and this drain groove 9 is filled with a sealing material 10 so as to completely close the space between the base slab 1 and the steel wall panel 2. .

In FIG. 5 (a), the lower end of the steel wall panel 2 is fixed on the base slab 1 by the anchor bolt 3, and a drain groove 9 is formed around the base slab 1. The lower end portion 7a of the face plate 7 of the steel wall panel 2 projects from one of the drainage grooves 9 along the wall of the steel basement, and a sealing material is inserted into the other drainage groove 9. 10 is filled so as to completely cover the space between the foundation slab 1 and the steel wall panel 2.

In FIG. 5 (b), a built-in groove 11 having a predetermined depth is continuously formed around the foundation slab 1, and a steel wall panel 2 is erected in the built-in groove 11. The lower end of the steel wall panel 2 is fixed by an anchor bolt 3 protruding into the recess 11.

In FIG. 5C, the lower end of the steel wall panel 2 is fixed on the foundation slab 1 by the anchor bolt 3, and the lower end 7a of the face plate 7 of the steel wall panel 2 is It is inserted into the concrete 1b of the slab 1.

In FIG. 6 (a), the lower end of the steel wall panel 2 is fixed to the foundation slab 1 by the anchor bolts 3 and the concrete of the foundation slab 1 is formed.
It is completely buried in 1b.

In FIG. 6 (b), the lower end of the steel wall panel 2 is fixed to the foundation slab 1 by an anchor bolt 3 formed in an L-shape, and is embedded in the concrete 1b.

7 (a) and 7 (b), a base made of a channel steel or an angle iron, which is partially installed in the concrete of the base slab 1 around the base slab 1, is shown. A steel wall panel 2 is erected on the base 12 and serves as a joint fitting that penetrates a bolt hole 12b formed in a flange 12a of the base 12 and a bolt hole 5a of the outer frame member 5. The lower end of the steel wall panel 2 is fixed to the base 12 by a plurality of fixing bolts 13.

Next, an example of a method of constructing a steel basement according to the present invention will be described step by step (see FIGS. 8 and 9).

First, a split stone 15 is spread on a root bottom 14 dug down to a predetermined depth, and a discarded concrete 16 is poured on the split stone 15. Then, reinforcing bars 1a are arranged on the discarded concrete 16 (FIG. 8 (a),
(b)).

Next, the steel wall panels 2 are erected on the reinforcing steel bar 1a while being joined to each other to construct the wall of the steel basement (see FIG. 8 (c)). Further, the anchor bolts 3 are respectively suspended from the bolt holes 5a of the outer frame member 5 of each steel wall panel 2 into the reinforcing steel bar 1a. At this time, the anchor bolt 3 is screwed with the anchor nut 8 to the male screw portion at the upper end so as not to fall out from the bolt hole 5a (see FIG. 9A). Further, the steel wall panel 2 is not placed directly on the reinforcing steel bar 1a, but a spacer (not shown) made of, for example, a concrete block or the like is interposed between the reinforcing steel bar 1a and the steel wall panel 2. The panel 2 is slightly lifted from the reinforcing bar 1a.

Next, steel wall panels 2, 2 constituting the wall
A steel roof panel 4 is interposed between the steel roof panels 4, the steel roof panels 4 are joined to each other, and an end of the steel roof panel 4 is joined to an upper end of the steel wall panel 2 to form a roof of the steel basement. Is constructed (see FIG. 9 (a)).

Next, the concrete slab is cast on the discarded concrete 16 to construct the foundation slab 1. At this time, the lower end of the steel wall panel 2 is embedded in the concrete 1b, and the lower end of the steel wall panel 2 is integrally fixed to the foundation slab 1 (see FIG. 9B).

Finally, protective concrete 17 is cast to a predetermined thickness on the outside of the steel wall panel 2 and on the steel roof panel 4 (see FIG. 9C).

In the embodiment of the present invention, the roof is constructed of steel roof panels, but may be constructed of PC board or cast-in-place concrete. When constructing with cast-in-place concrete, for example, a steel beam is bridged between the upper ends of the walls, a deck plate is laid thereon, and concrete is easily cast on the deck plate. it can.

[0032]

The steel basement according to the present invention has the above-described structure, and a reinforced concrete foundation slab is constructed at a root bottom dug down to a predetermined depth, and a steel wall is provided around the foundation slab. Since the panels are joined to each other and the lower end is fixed to the base slab with a plurality of anchor bolts and installed plurally to form a wall, and a roof is constructed between the upper ends of the walls. In particular, there is an effect that the steel material of the floor portion can be saved and the cost can be significantly reduced.

Further, since a base made of shaped steel is installed on the base slab, and a steel wall panel is fixed on this base with a joint, the leveling and embedding of the steel wall panel can be performed accurately. In addition to the effect, the steel wall panel can be securely and firmly fixed to the foundation slab, and the water can be reliably stopped between the foundation slab and the lower end of the steel wall panel.

The construction method of the steel basement according to the present invention comprises:
Reinforcing bars of the foundation slab are arranged on the root of the root cut down to a predetermined depth, and then steel wall panels are erected on the reinforcing bars while joining them to construct a wall. Then, concrete is poured into the root and the foundation slab is integrally formed with the wall, and then, for example, a steel roof panel is installed between the upper ends of the walls to construct the roof. Therefore, there is an effect that a large labor saving of construction can be achieved.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view of a steel basement.

FIG. 2 is a partial perspective view of a steel roof panel.

FIG. 3 is a perspective view of a steel wall panel.

4 (a), (b), (c) and (d) are longitudinal sectional views showing a method of fixing a steel wall panel on a foundation slab.

5 (a), (b) and (c) are longitudinal sectional views showing a method of fixing a steel wall panel on a foundation slab.

FIGS. 6 (a) and 6 (b) are longitudinal sectional views showing a method of fixing a steel wall panel on a foundation slab.

FIGS. 7A and 7B are longitudinal sectional views showing a method of fixing a steel wall panel on a foundation slab.

8 (a), (b), and (c) are process diagrams showing a method of constructing a steel basement.

FIGS. 9 (a), (b), and (c) are process drawings showing a method of constructing a steel basement.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Foundation slab, 2 ... Steel wall panel, 3 ... Anchor bolt, 4 ... Steel roof panel, 5 ... Outer frame material, 6 ... Middle frame material, 7
... face plate, 8 ... anchor nut, 9 ... drain groove, 10 ... sealing material, 11 ... built-in groove, 12 ... base, 13 ... fixing bolt, 14
… Root cut-off, 15… Rich stone, 16… Concrete, 17
... protective concrete.

Claims (4)

[Claims] 1. A reinforced concrete foundation slab is constructed on a root excavated to a predetermined depth, a steel wall panel is joined to the foundation slab, and a plurality of lower ends are connected to the foundation slab. A steel basement, wherein a wall is constructed by installing a plurality of walls while fixing them with anchor bolts, and a roof is constructed between upper ends of the walls. 2. The steel basement according to claim 1, wherein the lower end of the steel wall panel is embedded in the concrete of the foundation slab. 3. A reinforced concrete base slab is constructed at a root bottom dug down to a predetermined depth, and a metal base is buried in the base slab and a part thereof is buried in the concrete of the base slab. Then, steel wall panels are joined to each other on this base, and a plurality of lower ends are fixed to the base slab with joining metal fittings, respectively, and a plurality of the lower ends are installed to construct a wall, and a roof is provided between upper ends of the wall. The basement made of steel, characterized by the construction of a part. 4. A reinforcing bar of a foundation slab is arranged on a root bottom dug down to a predetermined depth, and a steel wall panel is erected on the reinforcing bar while being joined to each other. Constructing a part, and then casting concrete on the root bottom to construct a foundation slab integral with the wall, and then constructing a roof between the upper ends of the wall. Steel basement construction method.