KR100646363B1 - A reinforcement deck structure for a long span and its construction method - Google Patents

Abstract

The present invention relates to a floor structure and a construction method that is constructed by placing concrete as a formwork of the temporary material across the dance of both girders (girder), unlike the conventional single-type modular temporary material in the construction process Mainly supporting the work load, and after completion of construction, it is composed of dual-bearing member that functions as deck reinforcement structure and non-bearing member that mainly functions only as formwork, making it easier to construct longer spanned floor structures. As a result, not only can shorten the air and reduce azeotropy, but also provides a long-span floor structure that can reinforce dust and insulation functions along with diversification of the appearance.

Long span, reinforcement deck, formwork, slim deck, bearing member, vertical structural member, truss, bearing member

Description

Reinforcement deck type floor structure for long span and construction method for it {A REINFORCEMENT DECK STRUCTURE FOR A LONG SPAN AND ITS CONSTRUCTION METHOD}             

1 is a perspective view showing a floor structure of a conventional ferro deck (ferro deck) method.

Figure 2 is a perspective view showing a floor structure of a conventional slim deck (slim deck) method.

Figure 3 is a perspective view illustrating a structure in which the various types of bearing members and non-bearing members in the present invention is hypothesized to various types of girders.

4 is a partially cutaway perspective view illustrating a state in which concrete is poured after the steel mesh is disposed in the temporary structure of FIG. 3;

5 is a perspective view illustrating various forms of the bearing member, which is a constituent part of the present invention.

Figure 6 is a perspective view illustrating various forms of non-bearing member applied to the present invention.

7 is a perspective view illustrating various forms of a girder applied to the present invention.

* Explanation of symbols for main parts of drawings *

10: girder 12: frenzy

20: bearing member 22: vertical structural member

26: connecting member 30: non-bearing member

The present invention relates to a floor structure of a building and its construction method, and more particularly, after the construction and construction of columns and beams made of steel frame, RC or PC, etc., which are factory products, the concrete is placed on-site and the integrated floor is built. It relates to a construction method and its structure.

In general, large buildings such as high-rise buildings are built with factory-built steel aggregates or PC columns and beam members when the foundation is finished to a certain degree. Therefore, when concrete is cured after concrete is poured, the method of constructing a building by repeating the method of dismantling the floor formwork by floor is generally implemented.

In recent years, while reducing the labor and safety accidents due to the construction and dismantling of the floor formwork, and in order to reduce construction costs and shorten the air, a method of using both as a temporary material and a structural member without dismantling the floor formwork has been developed and utilized.

That is, as shown in Figure 1 ferro deck (ferro deck) method is a formwork ferro deck module (20) I by using a spot welded deformed reinforcement truss at regular intervals on the galvanized bending steel sheet I After the arrangement is fixed on the girders (beams) such as beams, and the back muscles are placed here, and the concrete is laid on the floor plate as it is, the constructed floor plate has a flat slab shape. Achieve.

In addition, the slim deck method shown in FIG. 2 is a method developed in the United Kingdom, and unlike a ferrodeck method that is arranged and fixed on the girder 10, that is, in the dance of a beam, that is, as shown in FIG. After continuously arranging the deck plate 20 made of a galvanized steel sheet having a cross-sectional trapezoidal shape on the lower flange 12, and then placing the upper and lower reinforcing bars 21 and the steel mesh 31 for intermediate beams, etc. As a method of constructing the bottom plate by pouring 50, the constructed bottom plate forms a structure in which a slab is supported on a plurality of intermediate beams, and a duct 60 is installed through the girder 10.

Both the ferro deck method and the slim deck method are used as a structural material to form a part of the floor structure by itself as a structural material, so wait until the concrete has a strength of 28 days as in the conventional formwork method. There is an advantage of reducing the delay of air caused by the construction method of dismantling formwork, which is a temporary material, and the effort or safety accidents due to dismantling.

However, these methods also suffer from some structural limitations.

That is, the above-described ferro deck method has a structure in which the ferrodek module is mounted on the upper surface of the girder 10 as shown in FIG. 1, which not only increases the height of the floor unnecessarily, but also more than the required thickness of the floor slab. It is difficult to apply to the long span structure because the cross section dance cannot be increased, and when it is applied to the long span structure, the floor slab becomes too thick, causing a problem of increasing the weight of the building.

The slim deck method shown in FIG. 2 can be said to be an advanced method by solving a large part of the problems of the ferro deck method.

In other words, this method is that a large portion of the floor slab is located in the dance of the girder, not only can form an economical floor height, but also increase the height of the deck plate's dance almost as the cross-sectional height of the girder, There is an advantage that can be applied to the structure of the relatively long span.

However, since the deck plate 20 used in such a slim deck method simultaneously performs the function of the formwork as a temporary structural material, for example, the deck plate itself is a load of the temporary materials as well as the load by the workers working on them. Since the structural strength required to support the loads by the equipments is required, the material used must be made of a relatively thick material having a relatively high rigidity such as galvanized steel sheet, which not only increases the construction cost but also increases the long span. When applied to the structure, there was a problem of handling discomfort such as distortion or deformation occurred during the construction, and furthermore, the troublesome work of having to reinforce a separate reinforcing bar 21 on the upper and lower parts at the site where the intermediate beam is formed. there was.

The present invention in consideration of the problems of the prior art as described above while forming an economic stratification to improve the structure and construction of the construction material to be suitable for the construction of the floor structure of the long span and at the same time to be a wide selection of economic and various materials As a result, the purpose is to provide a flooring structure having a variety of appearances and improved functions as well as reducing construction costs.

The present invention for achieving the above object, the bearing members for supporting all the load across the entire span of the deck plate hypothesized in the dance between the girders (girder) and, while functioning mainly for the formwork on the bearing member Its basic feature is that it consists of two parts with non-bearing member spanning.

After the hardening member is hardened together with concrete, the bearing member is formed of a vertical structural member that also functions as a reinforcing bar at the bottom and a joint member formed integrally with the non-bearing member to form a formwork.

In addition, the present invention first crosses the load-bearing member at a predetermined interval on both girders, and then cover the gap with a non-bearing member to form a temporary material and form, then secure the necessary reinforcement to the upper portion of the vertical structural member constituting the load-bearing member After reinforcement, it is characterized by building the floor structure by pouring concrete.

Hereinafter, with reference to the accompanying drawings will be described a preferred embodiment of the present invention.

Figure 3a is a perspective view showing the construction of a truss-like bearing member and a trapezoidal non-bearing member in the box-shaped cheolgolbo (girder), Figure 3b is a truss-bearing member and cross-sectional styro in the box-shaped cheolgolbo (girder) Figure 3c is a perspective view showing the structure of the non-bearing member made of the pool material, Figure 3c is a perspective view showing the structure of the construction of the truss-bearing member and non-bearing member by installing the supporting jaw at an angle to the dance asymmetric I-shaped girder 3d is a perspective view showing a structure in which a truss bearing member and a trapezoidal nonbearing member are installed on an RC beam (girder), and FIG. 3e is a truss bearing member and a trapezoidal specific bearing member in a wooden formwork for reinforced concrete girder. As a perspective view showing a structure of a member, as shown, the present invention arranges the load-bearing members 20 at predetermined intervals on the lower flanges 12 of the opposing girder 10. Next, these gaps sikimeuroseo concatenated to each other and cover the non-proof member 30, the basic ground structure is formed.

The bearing member 20 is composed of a vertical structural member 22, such as a truss member, and a joint member 26 integrally formed at the lower end thereof, and the joint member 26 is mainly formed around the vertical structural member 22. While forming a symmetrical structure, the both ends of the non-bearing member 30 is formed bent connection portion 27 is superimposed on each other.

Such a vertical structural member 22 may be used as a truss material of various forms as illustrated in FIG. 5 as well as other various forms of steel, but it is preferable to use a light and structurally excellent truss material.

In particular, as shown in FIG. 5A, in the truss structure having a triangular cross section, the upper curved portion of the left and right web materials 24 and 24 meeting the upper chord 23 is spread outward to the stepping portions 25 and 25. It can be formed, such a stepping portion 25 can be expected a more stable scaffolding role as a bearing member that also functions as a temporary material.

In addition, it is preferable to form a hanger groove 28 in the intermediate portion of the connecting member 26, so that it is possible to suspend the ceiling material after construction, and also be sure to also bend both ends of the connecting member 27 of the connecting member 26. It does not need to be negative and may be formed in a flat shape so that both ends of the non-bearing member 30 can be simply placed.

Since the load-bearing member 20 substantially bears all the loads acting on the hypothesized deck of whatever structural form, the rigid member 22 as well as the joint member 26 have a substantial structural strength. Should consist of

The load bearing member 20 functions as a temporary material supporting most of all loads generated in the working process during the construction period, and after completion of construction, the bearing member 20 is hardened together with the poured concrete to serve as an intermediate beam.

 On the other hand, since the non-bearing member 30 filling the adjacent load bearing member 20 is sufficient to have a strength enough to function as a formwork for slab concrete, steel such as galvanized steel sheet Of course, various materials such as various polymer materials such as plastic materials, various board board materials and porous inorganic lightweight materials can be selected and thus, the dustproof function, soundproofing or insulation function can be further enhanced by the selected material.

For example, when the non-bearing member is made of a porous inorganic lightweight material, it can be expected to have a heat insulation effect or a soundproof dustproof effect.

In addition, as shown in FIG. 6, the cross section may be designed in various forms such as a quadrangular or trapezoidal shape in which the cross section is bent in a trapezoidal shape as well as the cross section is filled or emptied. Various part shapes can be formed on the part, and various appearances can be configured.

However, the left and right both ends of the lower end side of the non-bearing member 30 in any form should be mounted in a structure corresponding to both side connecting portions 27 of the bearing member 20 connected thereto.

However, in the case where the non-bearing member is made of synthetic resin such as styropol without fire resistance, as shown in FIG. 3B, it is preferable to install a separate fire resistant plate 32 below.

And, as shown in Figure 3, when the non-bearing member 30 is a cover-like structure or a hollow polygonal structure bent in a trapezoidal shape, by inserting the stopper member 34 on both ends of the corner portion, Concrete should not leak out.

The non-bearing member 30 is not necessarily the same length as the bearing member 20, and may be divided into several members in some cases, and a wire mesh or a rib is disposed on the concrete contacting portion. ), Etc., can be added to enhance the adhesive effect with concrete.

In addition, the girders 10 to which the load-bearing member and the non-bearing member of the present invention are mounted may be selectively adopted in various forms of PC, RC, and steel as shown in FIGS. 3 and 7. The flange 12 or the support jaw 13 should be formed on the lower side of the girder so that both ends of the load bearing and non-bearing load members can be spread.

The structure of the present invention as described above is assembled and constructed once in the field pillars and girders 10 made of steel such as PC or RC and steel in the usual manner, and then the lower flange 12 of the two girders 10 described above The load bearing members 20 are arranged to be arranged across the first interval at predetermined intervals, and once the bearing members are installed on the girder, the subsequent construction can be continued in a stable working environment.

Then, the non-bearing member 30 covers a predetermined gap between the bearing members 20 arranged as described above, wherein both ends of the non-bearing member 30 are connected to both ends of the joint member 26. Make sure that they are connected to each other while they are on the floor.

Then, as shown in FIG. 4, the reinforcing bar 40 or the steel mesh 42 is fixed to the upper chord 23 of the truss-type vertical structural member 22 of the bearing member 20.

When the reinforcement is completed as described above, the concrete 50 is poured and compacted, and thus the compacted concrete is filled with the formwork of the joint member 26 and the non-bearing member 30 of the load bearing member 20 together with these formwork. It hardens to form a floor slab as it is.

At this time, the through holes 14 formed in the girder 10 are filled with concrete to communicate through the holes, so that the bottom slab and the beam (girder) or adjacent slabs are hardened in an integrated state as a whole, and thus are constructed as a stable structure.

In addition, the through hole 14 also functions as a through hole when the duct 60 is installed.

The present invention is not limited to the above embodiments and various changes can be made by those skilled in the art without departing from the technical spirit of the present invention, and such changes are also within the scope of the present invention.

As described above, the present invention, unlike the deck plate of the single type that is used as a temporary material in the so-called slim deck method is composed by dualizing the load-bearing member that bears all the load over the entire span and the non-bearing member that mainly performs the formwork function The technical characteristics are expected, and the following technical effects are expected by these technical characteristics.

First, since the bearing member supporting the entire load of the span is structurally strengthened and stable, it is consequently suitable for the construction of a long span floor structure, and therefore, an advantage of designing a building having a more efficient interior space is provided. have.

Second, as described above, the load-bearing member of the present invention is structurally stable, and thus does not cause warping or deformation as in a conventional deck plate. In addition, since the vertical structural member itself as a bearing member acts as a reinforcing bar for the concrete beam, there is no need to reinforce the intermediate beam by skilled workers as in the prior art, and as a result, construction time is shortened and construction costs are reduced. Has the effect of.

Third, the non-bearing member in the present invention can not only selectively adopt various materials, that is, plastic, gypsum board, and various inorganic lightweight materials in addition to steel such as galvanized steel sheet, but can also diversify its shape. Along with the diversification of the appearance, there is an advantage in that it is possible to provide a floor slab with enhanced dustproofing, soundproofing, and thermal insulation.

Claims (5)

In the floor structure in which the slab is constructed together with the intermediate beam by placing concrete on the deck plate installed in the dance of both girders (girder), The deck plate is divided into a load-bearing member and a non-bearing member to constitute a separate structure, The load-bearing member is composed of a vertical structure and a joint material integrally coupled to the lower end, Reinforcing deck-type floor structure for the long span, characterized in that the connection is configured in a state in which both ends of the non-bearing member on both ends of the connecting member. The reinforcement deck type floor structure according to claim 1, wherein the vertical structural member has a truss structure, and an upper step curved portion of the web material that meets the top chord of the truss is formed outward to form a stepping portion. The reinforcing deck type floor structure according to claim 1, wherein a hanger groove is formed at an intermediate portion of the joint member, and bending grooves are formed at both left and right ends thereof. The reinforcing deck type floor structure according to claim 1, wherein the non-bearing member is made of a porous inorganic lightweight material. In constructing an integrated floor structure by placing the necessary reinforcement in the form of the temporary material covered in the dances of both girders and then placing concrete, Firstly installing the load-bearing member horizontally at predetermined intervals in the dances of both girders among the provisionally constructed members of the load-bearing member and the non-bearing member; Covering the gap between the bearing members with a non-bearing member and connecting the bearings with each other so as to form a die together by connecting the bearings of the non-bearing member on the connection part of the bearing member; Fixing the reinforcement muscle to the upper chord of the vertical structural member forming the bearing member; Construction method of the reinforcement deck type floor structure for a long span, characterized in that it comprises the step of pouring concrete into the formwork.

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