JPS62215742A - Construction of reinforced light weight concrete building - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] (Field of Industrial Application) The present invention is applicable to buildings constructed by combining steel frames and lightweight concrete IJ-sheets, particularly for private residences, shops, or small apartment complexes in densely populated residential areas. It relates to the construction method of steel frame/lightweight concrete structures that are applied when constructing buildings.

(Conventional technology) When constructing relatively small-scale buildings such as private residences, stores, or small apartment complexes in densely populated residential areas, steel frames are assembled using the construction methods used for high-rise buildings. There is a construction method in which a lightweight concrete board is used as the exterior wall material to be attached, and the board is attached to a steel frame structure to construct a building.

There are several types of construction methods for building steel-framed, lightweight concrete structures, but they can be roughly divided into two types. One type is one in which the steel frame and lightweight concrete walls are manufactured integrally in a factory, and the building is formed by assembling the steel frame at the construction site.The other type is manufactured in a factory. The building consists of only a steel frame, and after assembling the steel frame at the construction site, a frame for attaching the cover concrete plates is assembled to the steel frame, and the lightweight concrete plates are completely fitted into the frame to form the building. In the former of these construction methods, the members constituting the columns, beams, and walls can be manufactured in a factory with a good working environment, and the work performed at the construction site can be done by assembling the steel frame parts. The advantage is that a building can be formed and outdoor work can be significantly reduced. However, in order to implement this construction method, it is necessary to have equipment that can carry out everything from the steel frame to the fabrication of walls, which requires the construction of a large-scale factory such as a steel factory.

In addition, in order to operate factories efficiently, it is necessary to produce large quantities of a small number of products, which leads to uniformity of buildings, and it is difficult to meet the wishes of clients for relatively small buildings, especially private residences. It has disadvantages such as being difficult, so only some major construction companies use it, and most small-scale buildings in reality are constructed using the latter method.

The latter construction method, in which steel frames are assembled at the construction site, and frame materials and lightweight concrete plates are sequentially attached to the steel structure, is used when the plate thickness is 75 mm to 75 mm, as shown in Figure 13. A 100 mm lightweight concrete plate making material 101 with a diameter of 2 to 5 at the end.
A frame body 104 for attaching the plate material 101t is formed by assembling shaped steel commercially available as general structural steel material, using reinforced steel strips 102 and 103 of millimeter diameter. Then, as shown in FIG. 15, a wall surface is formed by sequentially fitting the plate material 101t into the grooves of the frame body 1o and 4. In this case, the plate material 101 is
04, the plate material 10 located at the end of the wall surface 105 among the plate materials 101 to be fitted into the groove of the frame body 104.
1 is provided with a steel bar 106 that protrudes outward and is bent into a hook shape, so that the side end of the frame 104 is sandwiched between the concrete surface of the plate 101 and the bar 106. The plate material 101 is fitted into the frame 104. After all wall construction, use aluminum 107 for openings such as windows or entrances.
Attach it, form the building, and move on to the subsequent exterior and interior work #4rc.

With this construction method, all you need to do is order the desired steel frame from a steel manufacturer, eliminating the burden of machining the steel frame, which requires large equipment. Furthermore, since small parts are assembled one after another at the construction site, there is an advantage that capital investment is small and costs are reduced.

(Problems to be Solved by the Invention) With the above-mentioned conventional method of constructing a steel-framed light concrete structure building, when building in a densely populated residential area, the work area is small and the storage space for materials is also restricted. The work efficiency is poor, and since the lightweight concrete plates are fitted one by one into the frame 1041C, it takes many days to form the building and the construction period becomes long.

In addition, since groove-shaped structural members of the same standard are used for assembling the steel frame and the frame 104 and for assembling the frames together, butt welding is performed at each part, and the groove-shaped structural members at the construction site are It is difficult to support and the welding work is time-consuming, and the 8 degree dimension is not good, which may cause distortion of the frame 104.

In addition, the work of fitting the plate materials 101 into the frame body 104 is time-consuming because the plates must be fitted one by one into the grooves of the frame body 104, which is one of the causes of prolonging the construction period. However, since only the edge of the board 101 surrounded by the frame 104 is supported, the frame 104 may be deformed due to ground or other external forces, and the fitted board 1
If a part of the plate 101 is damaged, the entire plate 101 contained in the framework formed by the frame 104 will not collapse, and the repair range will be widened. Also, due to its structure,
There have been problems in that it is extremely difficult to reattach the plate material 101 and it may be necessary to remove the frame 104.

The purpose of the present invention is to manufacture external wall materials to be attached to steel structures in advance in a factory, and to attach the external wall materials to the outer periphery of the assembled steel structures at the construction site.
To provide a construction method for a steel frame/light concrete structure building which solves the above problems by enabling small-scale buildings in densely populated residential areas to be built in a short period of time and at low cost.

(Means for Solving the Problems) The present invention, as a means for solving the above-mentioned problems, provides a method for constructing a building with a steel frame/lightweight concrete structure. a step of manufacturing the connector into an inset shape, a step of fixing the connecting portions to form a lattice-like framework, and a step of removably attaching lightweight concrete plates to the lattice surface of the lattice-like framework to form an outer wall. The invention consists of a process of attaching and detaching the external wall to the steel structure at the construction site.

(Function) According to the above-mentioned configuration, the present invention enables the construction of steel frame/light concrete structures to be manufactured in a factory from the forming of channel structural members to the formation of external walls, and also allows for the accumulation of materials at the construction site. The amount and deposition time are reduced, and the assembly of the building at the construction site can be completed in a short period of time, significantly shortening the construction period. Since the exterior wall is manufactured in the factory and attached to the steel frame, there is no need for equipment to handle heavy steel frames, which reduces capital investment and costs. The process of forming the external wall involves assembling channel-shaped structural members to form a lattice framework, and attaching lightweight concrete plates to the lattice framework;
It is easy to produce a wide variety of products in small quantities, and it is easy to respond flexibly to small-scale buildings such as private residences, stores, and small apartment complexes. Lightweight concrete plates are removably attached to the lattice framework, and the outer wall is removably attached to the steel structure, making it easy to repair or replace the wall surface and reduce costs.

Outdoor work related to construction will be significantly reduced, and the working conditions of construction workers will be improved.

(Example) The present invention will be explained in detail below.

As shown in FIGS. 1 to 4, the lattice-like framework 1 which is a combination of a plurality of groove-shaped structural members 2 is made by drawing the ends 2a of the groove-shaped structural members 2 and forming the grooves of the groove-shaped structural members 2. 2b, fit it into the groove 2b of another groove-shaped structural member 2 whose longitudinal directions intersect at right angles, spot weld the overlapping parts along the fitting K, and fillet weld the edges. and integrate. This lattice-like framework 1 is made by drawing only the end portions 2a of the groove-shaped structural members 2. After the framework is formed, the lattice surfaces always lie on the same plane as the side surfaces of the groove-shaped structural members 2 having a constant width. Form.

On the lattice surface of the lattice-like framework 1, as shown in Fig. 1 and Figs. ,
A depth of 10 is provided at the location where the channel-shaped structural member 2 of the lattice-like framework 1 is located.
Screw insertion hole 5 with millimeter screw head buried hole
A wood screw-shaped screw component 6 with a diameter of 6 mm and a length of 60 mm is inserted into the screw insertion hole 5 and screwed into a screw hole (not shown) previously drilled in the groove-shaped structural member 2. Then, the lightweight concrete back plate material 3 is attached to the lattice-like framework 1 to form the outer wall 7. Attach plate material 3 to this.
Each item can be replaced easily.

When providing a bay window in the outer wall 7, as shown in Figs. Attach the formed bay window framework 9 to the channel-shaped structural member 2 of the lattice-like framework 1,
By attaching a lightweight conocrete board 3 to the outer surface of the bay window frame 9 using screw parts 6, and attaching a regular window sash 8a (see Fig. 12) to the edge of the bay window part, any It is possible to form a bay window with sufficient strength, and it is possible to easily create a bay window that is so large that it cannot be made using bay window sashes because the load on the sash attachment part is too large. can be formed.

To assemble the outer wall 7 at the construction site, refer to Figure 9 and Figure 1.
As shown in Fig. 0, bolt holes (Fig. (not shown)
A bolt hole 10 is drilled at a position corresponding to the bolt hole.
The steel structure 12 and the outer wall 7 are connected by forming an angle-shaped structural member 11 with a perforated hole, and by screwing bolts 13 between the steel structure 12 and the beam side of the steel structure 12 via the angle-shaped structural member 11. Assemble. As a result, installation of exterior wall materials, which conventionally took about a week, can now be completed in half a day to one day.

When forming the bay window portion of the external wall 7 with a bay window at the corner of the building, the steps shown in FIGS. 1, 8, 11, and 12
As shown in the figure, the channel-shaped structural members 2G at the end of the bay window side of the lattice framework 1 forming the bay window exterior wall 7 are left as pillars extending from the top end of the bay window to the bottom end, and the exterior wall 7 is constructed as a steel structure at the construction site. Install 12iC. After the outer wall 7 forming the bay window has been installed and the overall shape of the bay window has been assembled, the groove-shaped structural material 2C left as a pillar at the end of the bay window is cut out to remove unnecessary pillars from the bay window part. By attaching the shaped structural member 2C to the steel structure 12 until the outer wall 7 is attached, the strength of the outer wall is high, and the amount of deformation of the outer wall 7 during the outer wall installation work can be kept small. Assembling work becomes easier and assembly accuracy increases.

Also, there is no particular limit to the size of the bay window; for example, the first
As shown in Figure 2, it is possible to form a bay window as large as three windows.

With this construction method of manufacturing the exterior wall 7 and attaching it to the steel frame, the exterior wall 7 can be produced in a factory, can be manufactured quickly and accurately under strict quality control, and can be manufactured using materials at the construction site. It is possible to reduce the amount of accumulation and accumulation time, and to reduce the number of people occupying adjacent properties and roads in densely populated residential areas without causing inconvenience to third parties. The outer wall 7 is manufactured in the factory, and the building can be formed by simply tightening bolts to the steel structure 12 and assembling the outer wall 7 at the construction site, so the period for assembling the building assembly as on-site work can be completed in a short period of time. This significantly shortens the construction period and significantly reduces the amount of outdoor work involved in construction.

The labor conditions for workers engaged in continuous work are improved, and time lost due to interruptions due to the weather can be reduced. In addition, the outer wall 7 can be attached to the steel structure 12 after the outer surface of the outer wall 7 is top coated, which further reduces the construction period and allows construction in places where work space is extremely narrow, such as in densely populated residential areas. Make construction work easier.

Since the factory-manufactured product is the exterior wall that is attached to the steel frame, there is no need for in-factory equipment to handle heavy steel frames, which reduces capital investment, lowers depreciation costs, and other expenses, and lowers construction costs. can. The process of forming the outer wall 7 consists of assembling the groove-shaped structural members 2 to form the lattice-like framework 1, and attaching the lightweight concrete plates 3 to the lattice-like framework 1. This makes it easy to produce a wide variety of products in small quantities, making it ideal for private residences, shops, Alternatively, it is possible to easily construct buildings that meet the demand for small-scale buildings such as small-scale housing complexes. Interior materials can be directly attached to the exposed groove-shaped structural material 2 on the interior side grid surface of the exterior wall 70, and the interior materials are firmly and accurately attached, contributing to the sharing of materials and shortening the construction period for interior construction work. .

Furthermore, a bay window of any size can be formed on the outer wall 7 by attaching the bay window frame 9t to the lattice-like frame 1, making it easy to manufacture according to the client's wishes and making the indoor space that much larger. can. Since the outer wall 7 forms a strength member, it is reinforced by attaching the outer wall 7 to the steel structure 12, increasing the strength of the building.

(Effects of the Invention) As described above, in the present invention, a steel frame/light concrete structure building is manufactured in such a manner that the connecting portions of the channel-shaped structural members are fitted, and the connecting portions are further fixed to form a lattice-like framework. Since we decided to form an external wall by removably attaching lightweight concrete plates to the lattice surface of the lattice framework, and to construct the building by removably attaching the external wall to the steel structure at the construction site, we decided to start by forming the channel-shaped structural members. In addition to being able to produce everything up to and including the formation of external walls inside the factory, it is possible to reduce the amount and time of materials piled up at the construction site, and to reduce the nuisance to third parties caused by occupying adjacent properties and roads in densely populated residential areas. can be done. Even the production of the exterior walls can be done in the factory, and at the construction site, the building can be assembled by simply assembling the exterior walls to the steel frame.The building assembly period as on-site construction can be completed in a short period of time, significantly shortening the construction period. , outdoor work related to construction will be reduced by 1-2, and the working environment for workers engaged in construction work will be improved. Since the factory-manufactured product is the exterior wall that is attached to the steel frame, there is no need for equipment to handle heavy steel frames, so equipment investment is small and expenses such as depreciation and amortization are low. The process of forming the outer wall consists of assembling channel-shaped structural members to form a lattice-like framework, and attaching lightweight concrete plates to the lattice-like framework.It is easy to produce a wide variety of products in small quantities, and is suitable for private residences, stores, small housing complexes, etc. It is easy to construct buildings that meet the demand for small-scale buildings. Lightweight concrete plates are attached to the lattice frame in a removable manner, making it easy to repair or replace the wall surface and at low cost.

[Brief explanation of drawings]

Fig. 1 is a perspective view from inside of an exterior wall with a bay window made by the method of the present invention; Fig. 2 is a perspective view showing the assembled state of channel-shaped structural members in a lattice framework by the method of the present invention; FIG. 3 is an enlarged perspective view showing the connection part into which the end of the channel-shaped structural material of the lattice-like framework is fitted by the method of the present invention, and FIG. 4 is an enlarged perspective view of the lattice-like framework being processed by the method of the present invention. An enlarged perspective view showing one end; FIG. 5 is a perspective view showing an exterior wall with a window made by the method of the present invention; FIG. 6 is a perspective view showing an exterior wall without windows made by the method of the present invention; FIG. 7 is a perspective view showing the exterior wall without windows made by the method of the present invention. Figure 8 is an enlarged perspective view showing the screw insertion holes and screws provided in a lightweight concrete board applied to the invention; Figure 8 is a perspective view showing the side surface of the bay window of an exterior wall with bay window manufactured by the method of the present invention; 10 is a perspective view showing an angle structural material as an external wall mounting bracket used when the method of the present invention is applied; FIG. Fig. 11 is a perspective view from the inside showing how a bay window is assembled by the method of the present invention; Fig. 12 is a perspective view showing the external appearance of a house built by the method of the present invention in the vicinity of the bay window; Figure 13 is a perspective view showing a conventionally used lightweight concrete board material for exterior walls, and Figure 14 is a lightweight concrete IJ for exterior wall materials made by the conventional method.
FIG. 15 is an enlarged perspective view showing a state in which the wooden board material is assembled; FIG. 15 is a rear front view showing a state in which lightweight concrete board material for exterior wall material is assembled below a window by a conventional method; 1... Lattice-shaped framework 2... Channel-shaped structural member 2a.
...End 2b...Groove 2C...Groove-shaped structural material left as a column at the end of the bay window 3...Lightweight concrete plate material 4...Opening 5...Screw insertion hole
6...Screw parts 7...Outer wall 8...
Bay window opening 9... Bay window frame 1o... Bolt hole 11... Angled structural member 12... Steel frame structure 15... Bolt patent applicant -fu 1) Hong (') ”) Figure 4 Figure 5 Figure 7-b Figure 8 Figure 9 Figure 11 Figure 12 Figure 13 Figure 14

Claims (1)

[Claims] (1) A step of manufacturing the connecting portions of the channel-shaped structural members by fitting them together, a step of fixing the connecting portions to form a lattice-like framework, and a step of attaching and detaching lightweight concrete plates to the lattice surfaces of the lattice-like framework. A method for constructing a steel frame/lightweight concrete structure building, comprising the steps of attaching the outer wall to a steel frame structure to form an outer wall, and detachably attaching the outer wall to a steel frame structure at a construction site.