KR20020041064A - Pc core pre-construction method - Google Patents

Abstract

PURPOSE: A construction method of a building by pre-assembling the core of a building with a PC panel is provided to reduce construction expenses by shortening the period of construction and to obtain a high-quality structure. CONSTITUTION: The construction method of a building by pre-assembling the core of a building with a PC panel comprises the steps of pitting the appropriate ground, constructing core parts(11) formed into a stairs room(12), an elevator room(13) or a washroom to a PC panel(15) for a wall, a PC panel(16) for a slab and a PC panel for stairs, and constructing a slab(22) or a wall of a building except the core parts(11) with an RC method.

Description

Construction method of building that pre-assembles core of building with PC panel {Pc core pre-construction method}

The present invention relates to a construction method of high-rise buildings, such as apartments for residential buildings or office buildings that are non-residential buildings, and in particular, a method for constructing a building in which the core portion is constructed 3-5 floors earlier than other slabs using a prefabricated PC panel. It is about.

In the construction of high-rise buildings such as apartments and office buildings, the first step is to dig, then build a foundation, then install a formwork from the basement, reinforce the reinforcement, pour concrete, By removing the formwork and installing the formwork on the upper floor again, we can see the construction of the reinforced concrete structure corresponding to the skeleton of the building from the bottom of the basement to the top floor of the ground. .

On the other hand, commercial buildings such as office buildings usually have compartments in the center of the building, such as staircases, toilets, elevators, etc., and non-residential spaces such as stairs and elevators in the center of high-rise residential buildings such as apartments. It can be seen that these central compartments are usually called cores.

That is, in a corridor-type apartment having a corridor or a corridor between facing apartments, it is seen that an elevator or a staircase is installed at the center of the apartment, which is commonly referred to as a core.

The present invention is to construct a core part of the core part of the office building staircase, toilets, elevators are installed or the core part of the stairs of the apartment, the space in which the elevator is installed as an assembled PC panel, and the construction of the building to be sequentially and evenly sequentially Instead of constructing the core part by constructing the core part with 3-5-layer prefabricated PC panel, connect the slab by using RC method or PC panel method to provide the building construction method. will be.

In Europe, the core located in the center of the building is constructed by using a sliding form to reinforce concrete structures before the surrounding structures, and then the surrounding structures are sequentially constructed from the lowest floor to the top with the core as a support. It can be seen that a construction method for constructing a building reaching the uppermost floor, that is, a construction method for constructing a core using a sliding foam and connecting the slabs with the support as a support is used.

In this way, the construction method of high-rise buildings using pre-coated cores using sliding foam is to dig in the part where the building is to be installed, complete the foundation part of the building, and then slide the core part from the lowest floor to the top floor at a predetermined position of the foundation part. The core is pre-constructed using the back, and the steel frame is constructed with steel pillars, steel beams, etc. from the bottom to the top of the constructed core part, and then the concrete slabs are poured sequentially from the bottom to the top. We can see building high-rise building completion.

In the construction method of high-rise buildings using pre-installed cores, the pre-built cores using sliding foams are used as supporting structures for the structures of other buildings. Since the installation work of the complex facilities, etc. installed inside the elevator room can be carried out in advance, it can be seen that it has the advantage of shortening the building construction period of the building as a whole.

However, high-rise buildings that use cores for sliding construction, such as the construction of other frameworks and reinforced concrete, except cores, proceed sequentially from the lowest floor to the upper part, so if the construction of the lower floor is not completed, Since construction has a disadvantage that cannot proceed, it can be seen that there is a limit to significantly shortening the construction period due to the reason for waiting until the concrete buried inside the sliding foam is cured.

The present invention has been made in order to provide a method that can significantly shorten the construction period compared to the prior construction core construction construction method by the conventional sliding foam, the present invention is an elevator room, stairs room located in the center of the building Unlike the concrete curing method by sliding foam or cast-in-place concrete formwork for core parts such as toilets, the cores are assembled and constructed by PC panels pre-fabricated at the factory, and slabs are placed on PC panels or cast-in-place concrete based on cores. By shortening the time for core construction and construction with complicated structure, it is possible to reduce the construction cost by reducing the overall construction period of the building.

The present invention is to reduce the construction period by reducing the construction period in the construction of high-rise buildings such as apartments or office buildings, PC panels for structures such as elevator rooms, staircase rooms, restrooms that are usually concentrated in the center of the building As a result of the construction of the furnace, the frames such as beams, slabs, and walls are connected and fixed to each other, and the connecting parts are sealed with concrete so that high-rise buildings can be constructed.

In general, the walls, slabs or stairs of the core corresponding to the core, which occupies the staircases and elevators of the building located in the center of the building, are pre-fabricated by using a crane or the like. The core of the core, slabs that correspond to the walls, floors or ceilings of the building are constructed with PC panels or RC structures to shorten the construction air.

1-a partial perspective view showing the construction process of an apartment constructed by the present invention.

2 is a schematic front view of an apartment constructed in accordance with the present invention.

3 is a partially exploded perspective view showing the core portion of the apartment constructed by the present invention.

4 is a partially exploded perspective view showing the core portion of the apartment constructed by the present invention.

5 shows that the foundation of the apartment to be constructed in accordance with the present invention

Partially exploded perspective view.

Fig. 6-A partial cross sectional view of an apartment reference floor constructed in accordance with the present invention.

7-an enlarged partial cross-sectional view of an apartment reference floor constructed in accordance with the present invention;

8-Slab layer and core portion constructed by the RC method in the present invention

Partial cross-sectional view showing the connection of PC panel connection part.

9-Slab layer and core part constructed by RC method in the present invention

Partial cross-sectional view showing the connection of PC panel connection part.

Fig. 10-A partial cross sectional view showing an example of a "T" shaped connecting portion in the present invention.

Fig. 11-A partial sectional view showing an example of a "T" shaped connecting portion in the present invention.

Figure 12-Partial cross-sectional view showing one example of a "T" shaped connection in the present invention.

13 is a partial cross-sectional view showing an example of the "a" shaped connection in the present invention.

14 is a partial cross-sectional view showing an example of a "-" shaped connecting portion in the present invention.

Fig. 15 is a partial cross-sectional view showing an example of a "-" shaped connecting portion in the present invention.

In the construction of the building, after discharging the ground, the construction of the foundation 21 is completed by a conventional RC method, and the core part 11 composed of a staircase room 12, an elevator room 13, or a bathroom. ) The core part 11, which is assembled using a prefabricated wall PC panel 15, a slab PC panel 16, and a staircase PC panel 17, is used as a reference wall 23 or a reference slab ( 22) is to be assembled three to five layers earlier, another PC connected to the connecting reinforcing bar 18 or fasteners 19 protruding to the edge of the PC panel constituting the pre-assembled core portion (11). Connecting reinforcing bars 18 and fasteners 19 protruding from the edge of the panel, and connected to each other by filling the concrete mortar 25 in the connection portion, and fixed to connect integrally, the reference wall or slab connected to the PC panel assembled (22) is another wall by the RC method of placing concrete after connecting with connecting rebar Connect the slab (22) to ever build a building.

The present invention will be described in more detail as follows.

In constructing a building, a PC panel for wall 15, in which a core 11 part constituting an elevator room 13, a staircase room 12, etc., which corresponds to the center of the building, rather than a wall or slab corresponding to each floor is manufactured in advance. ), Using the slab PC panel 16, the staircase PC panel 17, etc., the elevator room 13 and the staircase room 12 are assembled and built 3-5 floors earlier than each floor slab of the building. Connecting steel and slab 22 or wall such as connecting reinforcing bar 18, connector 19, etc. protruding at the rim for connection or protrusion of the wall PC panel 15 corresponding to the core part 11 constructed. The PC panel of the core part 11 and the reference wall and the slab 22 are connected by fixing and fixing the reinforcing bars 28, and the other slabs 22 or the wall except the core part are reinforced concrete structures by the RC method. It is to allow the construction of the building.

In this way, the core part 11 constructed of PC panels, such as a wall PC panel 15, a slab PC panel 16, and a staircase PC panel 17, is constructed with three to five floors above the existing floor. In the connection between the wall PC panel 15 and the wall PC panel 15 or the slab PC panel 16 and the staircase PC panel 17, the "A" shaped joints 41 , &Quot; T " shaped joint 42, "-" shaped joint 43, or " L " shaped joint.

These joints are connected to each other, such as connecting reinforcing bars 18 or fasteners 19 formed on the edge of each PC panel, and then connected to each other, and then filling the concrete mortar 25 thereon core part 11 The outer reference slab 22 or the reference wall 23 of the core part 11 is assembled using the existing RC method, that is, the connecting reinforcing bars 18 or fasteners rushing to the edge of the PC panel (19) After connecting the connecting steel and the slab 22 or the reinforcing bar of the reference wall, and then poured concrete mortar to connect the slab or wall of the existing layer.

Various construction methods are used to construct high-rise buildings.

One of them is general building construction method by reinforced concrete construction method which is RC method and building construction method by assembling using PC panel which pre-fabricated building walls and slabs.

In general, the PC method using the PC panel requires no temporary materials or requires temporary materials in construction, and can be manufactured by standard design by factory design in advance. In addition, it is possible to work even in rainy weather, so it has little influence on the climate, it is easy to secure the working passage during construction, and it has excellent construction process density, and the site is clean after construction, which makes the site cleanup unnecessary.

In addition, in terms of structure and quality, the production is uniform in the factory, so the quality is excellent, and a solid structure is obtained thereby, and the safety is simplified by simplifying the work.

On the other hand, RC construction method, which is usually a reinforced concrete construction method, requires a temporary construction material for construction, requires a lot of cost and time to install and dismantle the temporary construction material, and can not be constructed in bad weather. It is difficult to secure the work path due to the temporary materials and formwork, and the construction period is long because it needs to go through the concrete curing time period, and the site is very complicated, and it can be seen that it takes much time and money to tidy up.

In addition, in the RC method, quality control is not easy due to the supply and demand situation of concrete, and it is necessary to carry out repairs when using poor concrete, and safety due to the large amount of construction materials such as formwork and temporary materials for securing the support passage of RC structures. This will be low, especially when the formwork is dismantled, the surroundings are dark, and safety accidents are frequently generated, and in terms of quality, it can be seen that the quality is not excellent, including on-site construction and repair.

As such, when comparing the PC panel method and the existing RC method in the construction method of the building, the PC panel method has many advantages over the RC method.

According to the present invention, when a core part such as an elevator room, a staircase room, or a bathroom located at the center of a building is constructed 3-5 floors earlier than an existing floor, the elevator room is utilized as a transport passage using materials required for construction. As the staircase room can be used as a worker's passageway, it is not necessary to construct a work path as a temporary material that can be seen in the existing construction work, and assembling it with the PC panel for the stairs manufactured by the factory If the installation does not require the installation of the formwork or other structures necessary to construct the stairs, as in the existing RC method, it is possible to build the stairs in a low cost and short time, thereby having the advantage of securing a work path.

As such, high-rise buildings are constructed with 3-5 floors of cores such as elevators, staircases, and toilets in advance by PC panels, which can shorten the entire construction period, resulting in a reduction in construction costs and a very useful inventor. will be.

Claims (1)

In the construction of the building, after discharging the ground, the construction of the foundation 21 is completed by a conventional RC method, and the core part 11 composed of a staircase room 12, an elevator room 13, or a bathroom. ) Is fabricated and installed using a prefabricated wall PC panel 15, a slab PC panel 16, and a staircase PC panel 17, and the slab 22 of the building except for the core part 11. B wall is to be constructed by RC method, and the core part 11 of the building to assemble the core of the building as a PC panel, characterized in that the construction of 3-5 floors earlier than the other slabs 22 or walls. Construction method.