KR101327785B1 - Construction Method of Core Part in Building - Google Patents

Abstract

The present invention is a method of constructing a core portion partitioned to the central part of the building to be used in the basement floor of the building, such as stairs, toilets, elevators, etc. Forming the core part, especially in building the concrete wall in one layer of the basement layer to form the core part, by forming the core part by dividing the concrete wall from the bottom to the upward direction, formwork supporting structure for the concrete wall construction of the core part It is possible to reduce the size and increase the construction speed of the basement floor.
In the present invention, as a core part construction method in the basement of the building, while performing the trench for the construction of the basement of the building sequentially in accordance with the progress of the construction of each floor of the basement, in each basement, the core part using the vertical steel pillars for the core Constructing a lower support wall forming a part of the concrete wall corresponding to Provided is a core part construction method comprising constructing an upper core wall corresponding to the remaining part of the concrete wall forming the core part of the basement layer so as to be integrated with the upper part of the lower supporting wall.

Description

Construction Method of Core Part in Building}

The present invention relates to a method of constructing a core part partitioned to the center of the building to be used for the use of stairs, toilets, elevator rooms, etc. in the basement floor of the building, specifically, the trench of the ground for the formation of the basement floor sequentially The core part in each basement layer is formed as it progresses, and in particular, when constructing a concrete wall in one layer of the basement layer and forming a core part, the concrete part is constructed by dividing and constructing a core part in the direction from the bottom to the upward direction. The present invention relates to a method for reverse construction of a core part of a building which can reduce the size of formwork supporting structures for construction and increase the construction speed of basement floors.

In a building such as a building, a core part used for a staircase room, a toilet, an elevator room, etc. is partitioned and formed in the center of the building, and the core part is formed in the basement floor as well as the ground floor of the building. In order to shorten the time required for the construction of the building, such a core part may be preferentially constructed. An example of the related art for the method of pre-installing the core part is disclosed in Korean Patent No. 171873 (Patent Application No. 1994-1325). It is.

However, the prior art disclosed in Korean Patent No. 171873 (Patent Application No. 1994-1325) breaks all the spaces to form the basement floor of a building, and then forms a core part from the basement floor to the ground floor using slip foam or the like. It is supposed to. Therefore, in the prior art, since all the spaces for the basement layer need to be excavated in order to form the core part, it takes a lot of time for the core part to be formed, and there is a disadvantage of delaying the ground layer construction start time using the core part.

On the other hand, unlike the prior art described above, instead of constructing the core part after destroying all the basement layers, it is possible to consider a method of forming the core part in the excavated portion while sequencing the ground in accordance with the height of the basement layer, in this case, In order to construct a concrete wall forming the core part corresponding to the height of the basement level, formwork supporting structures for supporting the site-casting concrete corresponding to the height of the basement level must be installed. That is, the formwork supporting structure for forming the concrete wall is to have a size that can support the amount of concrete of the concrete wall corresponding to the height of the basement floor, there is a disadvantage that a lot of cost is consumed accordingly.

See Republic of Korea Patent Registration No. 10-171873 (1999. 02. 18. notification).

The present invention was developed to solve the above problems of the prior art, specifically, in constructing the core part of a building, the core part in each basement layer is constructed while breaking the ground sequentially without breaking the entire basement layer. Accordingly, an object of the present invention is to provide a method of constructing a core part, which reduces construction cost by increasing the construction speed of the basement layer and reducing the size of the formwork supporting structure for the concrete wall construction of the core part.

In order to achieve the above object, in the present invention, as a core part construction method in the basement of the building, while performing a trench for the construction of the basement of the building sequentially in accordance with the progress of the construction of each floor of the basement, in each basement, the vertical core Constructing a lower support wall that forms part of the concrete wall corresponding to the core part by using the molten steel column; There is provided a core construction method for constructing an upper core wall corresponding to the remaining part of the concrete wall forming the core part of the basement layer so as to be integrated with the upper portion of the lower support wall.

In the present invention, the construction of the lower support wall is arranged to connect the temporary horizontal beam connecting the steel pillars for the core in the transverse direction; A temporary horizontal support is disposed between the temporary horizontal beams; Installing a temporary bottom plate member on the temporary horizontal beam and the temporary horizontal support; On the temporary bottom plate member, by installing the copper bar supported by the temporary floor plate member and the formwork supported by the copper bar can be made by constructing a lower support wall made of concrete wall, and further the outside of the temporary horizontal beam The assembly may further install a bracket member for supporting the edge of the temporary bottom plate member from the bottom.

According to the present invention, in constructing the core part of the building, the core part of the basement floor is divided into the lower support wall and the upper core wall and sequentially installed from the bottom to the upper part, and further, the lower part is integrated with the steel pillar for the core. Since the support wall is constructed to allow the lower support wall to support the upper core wall, the load of the stiff concrete concrete for the construction of the core portion is relatively small, and thus the size of the installation of the club can be reduced. In addition to the installation costs, the time required for installation and dismantling of the clubs can be reduced, thereby increasing the construction speed of the entire building.

1 is a schematic cross-sectional view showing the underground structure of a building.
2 to 11 are schematic partial enlarged views showing the enlarged portion A of FIG. 1 according to the construction method sequence of the present invention.
12 and 15 to 17 are schematic perspective views showing each step of constructing the lower support wall shown in FIG. 2, respectively.
FIG. 13 is a schematic perspective view showing that the bracket member for supporting the edge temporary bottom plate member is installed outside the temporary horizontal beam in the present invention.
FIG. 14 is a schematic enlarged view of a portion B of FIG. 13.

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings. Although the present invention has been described with reference to the embodiments shown in the drawings, it is to be understood that the technical idea of the present invention and its essential structure and operation are not limited thereby.

FIG. 1 is a schematic cross-sectional view illustrating a basement structure of a building, and FIGS. 2 to 11 are enlarged partial views showing part A of FIG. 1 according to a construction order, respectively.

In the core part construction method of the present invention, first, the trench for the basement construction of the building is sequentially performed in accordance with the progress of each floor construction of the basement. Therefore, for construction on the first basement floor (B1 floor), the ground excavation is made more than the depth corresponding to the first basement floor as shown in FIG.

As described above, in the state in which the ground excavation is made only to the depth corresponding to the first basement level, the core part is formed by using the steel pillars 101 for the core deeply embedded in the ground. Specifically, as shown in FIG. 2, the lower support wall forming a part of the concrete wall corresponding to the core part by using the steel pillars 101 for the core in a state of being floated by a predetermined height from the ground excavated to a depth of one underground ( Construct 1a). In FIG. 2 is a vertical steel 200 for forming a column installed around the steel column pillar 101 for the member number core. For convenience, the lower support wall installed on the first basement floor is described as "lower support wall 1a" using the member number 1a. In addition, the lower support wall installed on the second basement floor to be described later is displayed using the member number 1b, the lower support wall installed on the third underground floor is displayed using the member number 1c. As the number of basement floors increases, the lower support walls to be installed on the basement floors are displayed by attaching lowercase letters to Arabic numerals 1.

When the lower support wall 1a is constructed in this way, as shown in FIG. 3, the upper core wall 2a corresponding to the remaining part of the concrete wall forming the core part of the basement 1 floor is moved upward of the lower support wall 1a. It is formed to be integral with the lower support wall (1a). That is, the upper core wall 2a is supported by the lower support wall 1a that has already been constructed. For reference, the member number is also displayed on the upper core wall in the same manner as the lower support wall. Specifically, the upper core wall installed on the basement 2 floor is indicated using the member number 2b, and the upper core installed on the basement 3 floor. As the wall is displayed by using the member number 2c, as the number of basement floors increases, the upper core wall installed in the basement floor is displayed by attaching lowercase letters to Arabic numerals 2 respectively.

As described above, when the construction of the upper core wall 2a on the lower support wall 1a is completed in the basement 1 floor, the vertical pillar 200 installed around the core steel pillar 101 may be used. As shown in Fig. 4, the ground one-floor bottom plate 3a serving as the bottom surface of the ground one layer in the lateral direction of the upper core wall 2a is constructed. The bottom plate may be constructed using a deck plate or the like, or the bottom plate may be constructed by various other known methods.

As such, after forming the lower support wall 1a and the upper core wall 2a of the first basement floor and the bottom plate 3a of the first floor above ground, the trench for the construction of the underground second floor is performed. When additional ground excavation is made to a sufficient depth for the construction of the core part of the basement 2 floor, as shown in FIG. 5, the lower support wall 1b of the additional basement 2 floor which forms part of the core part of the basement 2 floor is again formed. The construction using the steel pillars 101 for the core. Subsequently, as shown in FIG. 6, a vertical pillar 200 is used to construct a basement floor plate 3b which becomes the bottom surface of the basement 1 floor, and is located above the lower support wall 1b of the basement 2 floor. The upper core wall 2b of the second basement floor is constructed continuously with the lower support wall 1b of the second basement floor. When the upper core wall 2b of the second basement floor is constructed in this way, as shown in FIG. 7, the concrete is disposed between the lower support wall 1a of the first basement floor and the upper portion of the upper core wall 2b of the second basement floor. The connecting wall 5 is formed and connected integrally. That is, the core part of the basement 1 floor and the core part of the basement 2 floor are integrated with each other by the concrete connecting wall 5.

The above process, that is, the additional excavation of the basement, the construction of the lower support wall of the basement, the construction of the bottom plate corresponding to the basement just above the basement, the construction of the upper core wall of the basement, and the upper core wall and the lower basement of the basement. The integration work by the concrete connecting wall between the supporting walls is repeatedly performed leaving two layers at the designed basement depth, thereby continuously forming the core part in the basement layer. For example, as shown in the drawing, if the basement 4 floors are constructed, the basement 1 floor and the basement 2 floors will be constructed in the same way as above. In the same way, the core portion is formed continuously.

The core part in the lowest layer and the upper layer, ie, the next upper layer, is constructed in the following manner.

FIG. 8 shows a step following the state shown in FIG. 9, and as shown in FIG. 8, the lowest layer lower supporting wall 1d is constructed in the same manner as described above with respect to the lowest layer. Prior to the construction of the lowest supporting wall 1d, the basement 2 floor plate 3c serving as the bottom surface of the basement 2 floor using the vertical column 200 provided around the core steel pillar 101 and It is also possible to construct the first upper layer bottom plate 3d, which is the bottom surface of the second upper layer, first.

When the lowermost layer lower supporting wall 1d is constructed, the lowermost layer upper core wall 2d is constructed to be continuous upward as shown in FIG. 9, and as shown in FIG. 10, the lower support wall and the upper core wall of the lower upper layer are shown. The concrete wall integrated without division is constructed so as to be continuous with the lowest layer upper core wall 2d to construct the core part of the next upper layer. Finally, as shown in FIG. 11, the concrete connecting wall 5 is disposed between the core part of the next upper layer and the lower supporting wall (the lower supporting wall of the second basement in the embodiment shown in the figure) already built in the basement above it. Constructed to integrate with each other.

Next, the method of constructing the lower support wall and the upper core wall in each basement will be described in detail.

12 to 17 are schematic perspective views illustrating each step of constructing the lower support wall described above with reference to FIG. 2. First, as shown in FIG. 12, a temporary horizontal beam 110 for connecting the steel pillars 101 for the core in the transverse direction is disposed above the excavated ground surface. At this time, additional temporary horizontal support 111 is also disposed between the temporary horizontal beams 110. FIG. 13 is a schematic perspective view illustrating the installation of a bracket member 130 for supporting the edge temporary bottom plate member outside the temporary horizontal beam 110, and FIG. 14 is a schematic view of a circle B portion of FIG. 13. 13 and 14, the bracket member for supporting the edge of the temporary bottom plate member on the outside of the temporary horizontal beam 110 connecting between the steel pillars 101 for the core, as shown in Figure 13 and 14 130 is assembled.

In this way, after installing a joist (not shown) between the temporary horizontal beam 110 and the temporary horizontal support 111, the temporary base plate member 120 is placed to secure a working space. 15 is a schematic perspective view showing a state in which the temporary bottom plate member 120 is installed. Since the temporary bottom plate member 120 is supported by a joist or the like disposed on the bottom surface, the load acting on the temporary bottom plate member 120 is transmitted to the temporary horizontal beam 110 and the temporary horizontal support 111. Eventually it is delivered to the steel pillars 101 for the core.

The hypothetical horizontal beam 110 is later demolished and recycled, by forming a bolt coupling hole in advance in the position where the bracket member 130 will be assembled on the side of the hypothetical horizontal beam 110, the bracket member 130 to the bolt By assembling and installing on the side of the temporary horizontal beam (110). By arranging the bracket member 130 on the side of the temporary horizontal beam 110 and placing the temporary bottom plate member 120 thereon, a work space for installing the formwork for building the concrete wall of the core part is provided. It can be easily obtained.

In this way, after installing the temporary bottom plate member 120 across the core steel pillars 101, a well-known copper bar device is placed on the bottom plate member 120, and the formwork is supported in the state supported by the copper bar device. Concrete is poured to build the lower support wall. FIG. 16 is a schematic perspective view of a state in which the lower support wall 1a is constructed. Through the above process, the lower support wall (1a) made of reinforced concrete wall is built integrally with the core steel pillar (101) across the core steel pillar (101), the lower support wall (1a) is It functions to support the upper core wall (2a) to be integrally connected to the upper construction. That is, as described above with reference to FIG. 3, when the lower support wall 1a is constructed, the reinforced core wall is continuously constructed to construct the upper core wall 2a. FIG. 17 is a schematic perspective view showing a state in which the upper core wall 2a is constructed in a continuous manner above the lower support wall.

In the method of the present invention, since the upper core wall 2a is supported by the lower support wall 1a, the load of concrete poured to construct the upper core wall 2a is transmitted to the lower support wall 1a. Finally, it is transmitted to the steel pillars 101 for the core which are integrated at the edges of the lower support wall 1a. The structure of the method according to the present invention in which the lower support wall 1a is constructed in advance across the steel pillars 101 for the core and the lower support wall 1a supports the upper core wall 2a, that is, the basement layer The construction of dividing the core part of the height and constructing it in the reverse order from the bottom to the upper part is more expensive than the construction of the core part of the basement level of one level by one concrete pouring. It has the advantage of being simplified.

If the core part of the basement level is temporarily constructed by concrete placement, a considerable amount of copper barges should be installed to support the load of the unconsolidated concrete to make the core part corresponding to the basement level. However, in the present invention, as described above, the core part of the height of the basement floor is divided into the lower support wall and the upper core wall, and is constructed from the bottom to the upper direction, that is, the construction order is reversed, and further integrated with the core steel pillar 101 for the core. The lower support wall (1a) is built to achieve this, so that the lower support wall (1a) to support the upper core wall (2a), so that the load of the stiffened concrete to build the core portion is relatively small, Accordingly, it is possible to reduce the size of installation of the dongbari, as well as the cost of installing and dismantling the dongbari installation costs, thereby reducing the construction speed of the overall building has the advantage that can be increased.

The temporary horizontal beam 110, the temporary horizontal support 111, and the temporary bottom plate member 120, which were used for the construction of the core part, are removed and recycled to another basement construction.

101: steel column for core
110: hypothetical horizontal beam
121: temporary bottom plate member
130: bracket member

Claims (3)

delete As the core part construction method in the basement of the building, the core part is constructed by using the vertical steel pillars 101 in each basement while sequentially performing the trench for the construction of the basement of the building in accordance with the progress of the construction of each floor of the basement. Constructing a lower support wall that forms part of the concrete wall corresponding to Constructing an upper core wall corresponding to the remaining part of the concrete wall forming the core part of the basement layer so as to be integrated with the upper part of the lower supporting wall;
Construction of the lower support wall,
Connecting the temporary horizontal beams 110 for connecting the steel pillars 101 for the core in the transverse direction;
A temporary horizontal support 111 is disposed between the temporary horizontal beams 110;
Installing a temporary bottom plate member (120) on the temporary horizontal beam (110) and the temporary horizontal support (111);
On the temporary bottom plate member 120, a core supported by the temporary bottom plate member 120 and a formwork supported by the copper bar is installed to be a lower support wall made of concrete walls. Construction method.
3. The method of claim 2,
Core portion construction method characterized in that the installation of the bracket member 130 to support the edge of the temporary bottom plate member 120 from the outside of the temporary horizontal beam (110).

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