JPS598837A - Unit type underground building and construction thereof - Google Patents

Abstract

PURPOSE:To simply construct an unit type underground building having excellent strength in a short time by a method in which steel bars are thrust into hollow sheated tubes provided to a floor slab, walls and a roofing slab and a tension is given to the steel bars. CONSTITUTION:An underground building consists of two units 2A and 2B each of which is provided with a floor slab 3, a walls 4 and a roofing slab 5. Hollow sheathed tubes 6 are almost horizontally buried in the floor slab 3, the walls 4 and the roofing slab 5, and both ends of the sheathed tubes 6 are opened on the outsides of the floor slab 3, the walls 4 and the roofing slab 5. Each axis of the sheathed tubes 6 in the units 2A and 2B is matched, steel bars 12 are thrust into the sheathed tubes 6, nuts 13 are attached to both ends of the steel bars 12, and the steel bars 12 are tensed toward the opposite directions by the nuts 13 in such a way as to generate a tension, and thereby two units 2A and 2B are integrally combined with each other.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a unit-type underground building and construction method mainly used for residential purposes, and its purpose is to provide a structure that has excellent strength and that can be built directly onto the roof slab of an underground building. The purpose is to make it possible to construct a building by providing Another object of the invention is to allow for quick and easy construction.

Underground buildings (basements) that are constructed using site space when expanding or renovating a house include those in which floor slabs, walls and roof slabs are integrated by pouring concrete at the construction site, and those in which floor slabs, walls and roof slabs are integrated at the construction site. Slabs, walls and roof slabs may be manufactured separately as panels and assembled at the construction site. Among the construction methods, the former is a floor slab,
Since the walls and roof slab are integrated, it has the advantage of superior strength, but on the other hand, it takes too much time to construct, and
The quality of concrete may not be stable because it is affected by various conditions during concrete placement. In particular, since it is poured on-site, it is difficult to cast dense and solid concrete, which cannot withstand the osmotic pressure of water in the soil and lacks waterproof and moisture-proof effects. Next, when assembling the panels,
It doesn't take much time to build, as all you have to do is assemble the panels manufactured at the factory at the construction site.
Because the floor slab, walls, and roof slab are not integrated, their strength is weak, and it is difficult to construct a building by placing a foundation directly on the roof slab of the underground building, which is insufficient for effective use of site space. Met.

According to the present invention, an underground building to be buried underground is divided into a plurality of units in which floor slabs, walls, and roof slabs are integrally connected, and is assembled in a factory. ! ! The units are constructed and assembled at the construction site. A hollow sheathed pipe is buried in each floor slab, wall, and roof slab, and the ends of the sheathed pipes are left open on the outer surfaces of the floor slab, walls, and roof slab, and the units are closely spaced in parallel at the construction site. Or, the axes of the sheathed pipes are aligned, the steel rods or wires are inserted into the sheathed pipes, and the steel rods or wires are fixed to the outer surfaces of the floor slabs, walls and roof slabs. , tension is applied to the steel rod or steel wire so that the divided units are connected together.

Embodiments of the present invention will be described below based on the drawings.

1 to 9, the underground building 1 consists of two units 2A, 2B, each unit 2A, 2B having a floor slab 3, a wall 4 and a roof slab 5, respectively.

The units 2A and 2B have a floor slab 3 and a wall 4.
And reinforcing bars and others are built into the roof slab 5 (not shown).
, is integrally molded with concrete to provide a specified strength. Of course, units 2A and 2B are manufactured at the factory under strict quality control. floor slab 3
Hollow sheath pipes 6 are buried approximately horizontally in various locations of the walls 4 and the roof slab 5, respectively, and both ends of the sheath pipes 6 are open to the outer surfaces of the floor slab 3, the wall 4, and the roof slab 5. The shapes of the units 2A and 2B are determined by the room structure, such as for a Japanese-style room or a Western-style room, and are not limited to those shown in the drawings. In the figure, 7 is a room space surrounded by the floor slab 3, wall 4, and roof slab 5, 8 is a window opening provided in the wall 4, and 9
1 is an entrance/exit, 10 is a space for installing stairs, and 11 is a space for lighting or ventilation. The roof slab 5 is not provided in the space 10 for mounting stairs and the space H for lighting or air circulation.

The units 2A and 2B are manufactured at a factory under strict quality control, and then transported to the construction site and assembled.

The construction site was excavated and leveled in advance, and units 2A, 2
B are placed 5113 closely or closely in parallel.

Adhesive may be applied to the abutting surfaces of the units 2A and 2B. Whether the units 2A and 2B are arranged closely (the power of arranging the units 2A, 2B) or in close proximity to each other is determined depending on how the waterproofing treatment described below is performed. i! 1lfi! The axes of the sheath tubes 6 in various parts of the units 2A and 2B are aligned, a steel rod or steel wire 12 is inserted into the sheath tube 6, and fixing fittings 13 such as nuts are attached to both ends of the fP4tlI4 or the steel wire. , the steel rod or steel wire 12 is pulled in the opposite direction by the fixing fitting 13 to generate tension,
The two units 2A and 2B are connected together. In the units 2A and 2B, since tension is generated in the steel rods or steel wires 12, the floor slabs 3, walls 4, and roof slabs 5 of each unit 2A and 2B are integrated. Unit ZA
, Apply waterproofing to the joints of 2B. The method includes
There are those shown in FIGS. 7, 8, and 9.

In the waterproofing method shown in FIG. 7, a recess 14 is provided on the outer surface of the wall 4 and roof slab 5, and a waterproofing material 15 such as hairsford, mortar, synthetic resin, rubber, or other waterproofing material 15 is placed in the recess 14 in a fluid state. Fill it or glue it into a predetermined shape. The waterproofing method shown in FIG. 8 involves interposing an elastic waterproof material such as urethane rubber between the units 2A and 2B.
Closely attached to B. The waterproofing method shown in Figure 9 is as follows:
This is a combination of the waterproofing method shown in the figure and the waterproofing method shown in FIG. 8, with recesses 14 provided in the units 2A and 2B,
A part of the waterproof material 17 is inserted into the recess 14, and a part of the waterproof material is interposed between the units 2A and 2B. The interior of the underground building 1 constructed in this manner is subjected to known treatments such as fat dampening and fog prevention treatment as necessary.

Note that the unit may be divided into three or more units.

Since the present invention has the above configuration, it has the following advantages.

(1) In the underground building of the present invention, the floor slab, wall, and roof slab are integrated for each unit, and the units are integrated by tension of steel rods or steel wires.
Significant improvement in strength compared to underground buildings made by assembling panels. Therefore, it becomes possible to construct 11 adjacent buildings on the underground building, and it is possible to aim at the blind utilization of site space.

(2) At the construction site, it is only necessary to assemble the units and perform waterproofing, so it is not only compared to an underground building made of cast-in-place concrete, but also compared to an underground building where many panels are assembled. The construction effort is significantly reduced, the building can be completed in a short time, and the building is inexpensive.

(3) Since the units are manufactured in factories under strict quality control, they are denser and more solid concrete structures than cast-in-place concrete underground buildings, and can withstand the osmotic pressure of water in the soil. Therefore, waterproofing and oil-proofing measures are much easier than those cast in the field.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of an embodiment of the present invention, FIG. 2 is an exploded perspective view, FIG. 3 is a plan view, FIG. 4 is a broken plan view, and FIG. FIG. 6 is a sectional view of the main part, and FIGS. 7 to 9 are sectional views of the main part showing examples of waterproofing treatment.

Claims (1)

[Claims] (A hollow body in which a floor slab, a wall, and a roof slab are integrally formed, and hollow sheath pipes are buried horizontally in various places in the floor slab, walls, and roof slab, A unit-type underground building characterized by forming a concrete unit in which the end of the sheath pipe is opened on the outer surface of the floor slab, wall, and roof slab, and assembling a plurality of units in parallel. ( 2) Install multiple hollow units in which floor slabs, walls, and roof slabs are integrated in parallel or close together, and run copper rods or copper wires horizontally for each floor slab, wall, and roof slab of the unit. A method for constructing a unit-type 110-bottom building, characterized by inserting the steel rod or wire, fixing the end of the steel rod or steel wire to the outer surface of the unit, and applying tension to the steel rod or wire to connect the units. .