JPH0473338A - Method for constructing reinforced concrete building and reinforced concrete building - Google Patents

Abstract

PURPOSE:To save form material and shorten construction period by arranging reinforcing bars with a shop-fabricated steel frame disposed inside the bars, placing stones outside the bars to place concrete and forming the inner frame and the outer frame integrally with each other. CONSTITUTION:Shop-fabricated steel frames 1 are installed on a slab-on-earth 12 so that a set member 5, comprising a steel bar 5a and a steel set piece 5b which are welded together in a T-shape, is welded to the outer periphery of the frames 1. Thereafter reinforcing bars 3, 4, 15 are arranged to form a gap 10 for concrete filling and stones (b) for outer wall are placed to form an outer wall frame and concrete is placed therein. As a result, a structure can be built with a high degree of accuracy and work for placing forms can be reduced, resulting in shorter construction period and reduced cost.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a method for constructing a reinforced concrete building without formwork, and a reinforced concrete building constructed without formwork.

[Conventional technology]

When constructing a concrete building, assemble formwork for pouring concrete. This formwork must be properly matched to the location, shape and dimensions of the building and must be rigidly erected to avoid distortion of the building being constructed, e.g.
A commonly used method is to fix a wooden formwork made of plywood or a steel formwork using steel pipes or the like.

[Problem to be solved by the invention]

However, in the conventional method of constructing reinforced concrete buildings using formwork, it takes time to assemble the formwork, and the formwork needs to be dismantled after the concrete has hardened, which takes time. After dismantling the formwork, it is necessary to apply the exterior. Furthermore, due to the recent shortage of formwork workers and other skilled workers, there is a tendency for these operations to stagnate. Therefore, there were problems in that the construction period became longer and the construction cost increased. In addition, since these operations are carried out outdoors at construction sites, it is difficult to mechanize them, which makes it difficult to construct reinforced concrete buildings with high precision.

Therefore, reinforced concrete buildings manufactured by this method are expensive and have poor accuracy.

Therefore, the present invention has been made to solve these conventional problems, and aims to shorten the construction period of reinforced concrete buildings by reducing the work of assembling and dismantling formwork and speeding up the work. To provide a method for constructing a reinforced concrete building that can shorten construction costs and easily maintain manufacturing accuracy, and to provide an inexpensive and highly accurate concrete building constructed by this method. purpose.

[Means to solve the problem]

The present invention has been made in view of the above object, and its gist is a process of installing an inner wall frame prepared in advance by construction etc. on a foundation constructed so as to surround a living room space, and an outer periphery of the inner wall frame. A step of arranging reinforcing bars in the gap between the inner wall frame and the inner wall frame set by the outer wall material mounting members protrudingly arranged at predetermined locations, and attaching a large number of outer wall materials to the outer wall material mounting members; The method of constructing a reinforced concrete building includes the step of pouring concrete into the gaps between them as formwork. In addition to the above invention, reinforcing bars may also be provided at the slab position on the upper surface of the inner wall frame, and slab concrete may be cast together with the concrete in the gap.

Another aspect of the present invention is that the inner wall frame has an outer wall material mounting member protrudingly arranged at a predetermined location on the outer surface, and the inner wall frame is mounted with a gap provided between the inner wall frame and the outer wall material mounting member. The inner wall frame and the outer wall materials are constructed using a large number of external wall materials, and in the gap, concrete is placed with reinforcing bars on a foundation constructed to surround living spaces and residential spaces such as apartments. It is located in a reinforced concrete building that is integrally formed with.

In addition to the present invention, this reinforced concrete building may further include a slab concrete and reinforcing bars disposed in the slab concrete on the upper surface of the steel frame, and these may be stacked in many layers. can.

[Effect]

The inner wall frame in the present invention is placed on the foundation to form a living space inside, and can also be used as a substitute for the inner frame. Reinforcing bars are provided on the outer periphery of the inner wall frame, and the outer wall material is attached via outer wall material attachment members arranged on the outer periphery of the inner wall frame, which is also used as an outer form frame. Next, concrete is poured into the gap between the inner wall frame as the inner form and the outer wall material as the outer form to integrally construct a reinforced concrete building. In this way, according to the present invention, a reinforced concrete building can be constructed without requiring the work of assembling and dismantling formwork as a temporary structure.

[Embodiments of the invention]

Next, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is a plan view showing a part of the reinforced concrete building of the present invention. In the same figure, 1 is a steel frame serving as a quadrilateral inner wall frame that closes the top, and this is a steel frame that covers the living space. It has a considerable size that encloses it, and has notches and window holes (not shown) formed at the front and rear to form entrances and windows as necessary. In addition, a large number of reinforcing bars 2 are protruded from the outer surface and the top of the steel frame 1 as external wall material attachment members, and reinforcing bars 3.4 are attached to these reinforcing bars 2 by welding or the like. As shown in the perspective view of Figure 2, they are arranged in a grid pattern. Reference numeral 5 denotes stone mounting members protruding from the outer surface of the steel frame 1 at equal intervals, and these stone mounting members 5 are equipped with external wall stones 6 as an external wall material consisting of a large number of blocks, as shown in FIG. Installed as shown. That is,
Each of the stone mounting members 5 is made up of a mounting steel rod 5a welded to the steel frame 1 and a steel mounting piece 5b welded to the steel frame 1 in a T-shape. A large number of external wall stones 6 can be attached to each stone mounting member 5 by screwing bolts 8 inserted through the external wall stones 6 to nuts 7 that have been previously attached to the back surface of the steel mounting pieces 5b by welding. This allows them to be installed one after another. In addition, the second
In the figure, reference numeral 9 denotes the entrance of a building that is pre-constructed in a factory at the front of the steel frame 1. 10 is a steel frame 1 and external wall stone 6
This concrete filling gap 10 is filled with concrete 11 so as to embed the reinforcing bars 3, 4 and the mounting steel rod 5a of the stone mounting member 5. In FIG. 1, since the living space R is arranged horizontally by a partition wall, external wall stones 6 are provided only on the front and back sides of the steel frame 1, and on the other both sides.
The reinforcing bars 3 and 4 of adjacent steel frames 1 face each other, and the spaces between these adjacent steel frames 1 are filled with concrete 1 to 11.

Note that when the living room space R is formed alone, the outer wall stones 6 are attached around the entire circumference of the steel frame 1. Furthermore, in addition to the configuration of the present invention described above.

After that, concrete 11 is also placed on the top of the steel frame 1,
This forms the slab of a reinforced concrete building.

Next, a method for constructing a reinforced concrete building according to this embodiment will be explained. First, as shown in Fig. 4, a steel frame 1 produced in a factory and having reinforcing bar support rods 2 and stone mounting members 5 pre-attached to the outer surface is used as a foundation that surrounds the living space. Place it on the dirt floor concrete 12. Next, the reinforcing bars 3 and 4 are installed via the reinforcing bar support rod 2, and the outer wall stone 6 is attached to the stone attachment member 5 with bolts 8. The mounting steel rod 5a of the stone mounting member 5 doubles as a commonly used holder for the inner and outer formwork, and has a predetermined length, so that it can fill a concrete filling gap of a predetermined width. Maintain the thickness of the concrete. In addition, the anchor reinforcing bars 3 are buried in advance in the soil floor concrete 12 at the locations where the vertical reinforcing bars 3 are installed, and if the vertical reinforcing bars 3 are connected to this by welding or the like, the reinforced concrete structure and the soil floor concrete 12 are connected. will be more firmly integrated.

In addition to the above-mentioned method, the present invention also includes installing the reinforcing bars 3, 4 and the external wall stones 6 in advance in a factory or the like, and then placing these together with the steel frame 1 on the concrete floor 12. It may be placed. Subsequently, slab reinforcing bars 15 (see FIG. 2) are placed on the top surface of the steel frame 1, and the concrete filling gap 10, the gap between adjacent steel frames 1, and the slab on the top surface of the steel frame 1 are installed. A reinforced concrete building is completed by pouring concrete and hardening it.

As described above, in the method for constructing a reinforced concrete building of the present invention, the steel frame 1 as an inner wall frame is used not only as an inner wall but also as an inner formwork, and the outer wall stones 6 are used as an outer formwork in addition to the exterior material. This eliminates the need for assembling and dismantling formwork as a temporary structure.
Therefore, reinforced concrete buildings can be constructed quickly. Furthermore, most of these members can be produced in factories, so they have excellent manufacturing precision.

FIG. 5 shows another example of a housing structure constructed using the present invention. The steel frame 1 has two side surfaces as inner wall surfaces and two side surfaces as partitions, and four units of these are prepared and connected in the front, rear, left and right directions, and an outer wall is formed only on the outside of the two inner wall surfaces. The stone material 6 for use is attached and the entire area is surrounded. According to this, a large living space for four rooms can be provided.

Incidentally, by stacking the steel frames 1 upward, a multi-layered concrete building can also be constructed in substantially the same manner.

〔Effect of the invention〕

As described above, according to the present invention, the inner wall is installed on the foundation member as an inner wall that also serves as an inner wall frame surrounding a living space.

A reinforced concrete building is constructed by placing reinforcing bars around the outer periphery of the structure, attaching an external wall material that also serves as the external formwork, and pouring concrete between these, reducing formwork work and shortening the construction period. In addition, reinforced concrete buildings can be constructed at low cost. In addition, the above-mentioned steel frames and stones for external walls can be manufactured at the factory, so
The manufacturing accuracy of reinforced concrete buildings will be improved.

[Brief explanation of the drawing]

FIG. 1 is a partially cutaway view showing the structure of a reinforced concrete building according to an embodiment of the present invention, FIG. Figure 3 is an enlarged perspective view showing the mounting structure for external wall stones, Figure 4 is a front view showing steel frames placed side by side on a concrete floor, and Figure 5 is formed from a unit of multiple steel frames. It is a schematic plan view showing a housing structure. 1...Steel frame, 3, 4.15...Reinforcing bars, 5...Stone mounting components, 6...Stone for external walls, 10...Concrete filling gap, 11...Concrete, 12...Earth floor concrete.

Claims (1)

[Claims] 1) A method for constructing a reinforced concrete building in which a partition wall is constructed to surround a living space such as a living space or a residential space, including installing an inner wall frame on a foundation constructed to surround the living space. arranging reinforcing bars in the gap between the step and the inner wall frame set by the outer wall material attachment member protruding from a predetermined location on the outer periphery of the inner wall frame, and attaching a large number of outer wall materials to the outer wall material attachment member; A method for constructing a reinforced concrete building comprising the step of pouring concrete into the gap between the inner wall frame and the outer wall material as formwork. 2) An inner wall frame having an outer wall material attachment member protruding from a predetermined location on the outer surface, a number of outer wall materials attached to the inner wall frame with gaps provided through the outer wall material attachment members, and the gaps. A reinforced concrete building in which the inner wall frame and the outer wall material are integrally formed using concrete cast with reinforcing bars on a foundation built to surround a living space or a residential space such as an apartment complex.