WO2017061719A1

WO2017061719A1 - Construction method for seismically retrofitting and remodeling building

Info

Publication number: WO2017061719A1
Application number: PCT/KR2016/010727
Authority: WO
Inventors: 문종기
Original assignee: 문종기
Priority date: 2015-10-08
Filing date: 2016-09-26
Publication date: 2017-04-13
Also published as: KR101611820B1

Abstract

A construction method for seismically retrofitting and remodeling a building is disclosed. The present invention is implemented through the steps of: rough-surface-treating an outer front surface of an intersecting part between a front surface of a column of a building to be remodeled and an upper beam of the column, and an outer front surface of an intersecting part between the front surface of the column and a lower beam of the column, and providing fixing members to the outer front surface of the intersecting part between the front surface of the column and the upper beam of the column, and the outer front surface of the intersecting part between the front surface of the column and the lower beam of the column; assembling reinforcing bars at the fixing members in order to provide a shear wall to the front surface of the column, and providing a mold; and pouring concrete and curing the same. In addition, the present invention can be implemented in a manner of constructing the shear wall by using a PC panel in order to ensure the quality of the seismic retrofitting shear wall and shorten a construction period. The present invention can obtain effects of: outputting laterally braced reinforcement (seismic retrofitting) having excellent capacity due to a simple and rapid construction; and increasing the lateral bracing force of a conventional deteriorated reinforced concrete and steel-framed structure.

Description

Building seismic reinforcement and remodeling construction method

The present invention relates to a method for building earthquake-resistant reinforcement and remodeling, and more particularly, to a method for building earthquake-resistant reinforcement and remodeling which can achieve lateral support reinforcement of excellent performance through simple and rapid construction.

Although there has not been an earthquake in Korea, which causes major damage or collapse, the frequency of earthquakes more than three magnitudes has increased recently.

Meanwhile, according to the current earthquake disaster measures law, seismic design is mandatory for public buildings, private hospitals, and school buildings.However, among 12,023 public facilities, private hospitals, and schools that are subject to earthquake reinforcement, 37.3% in 2011 and 38.4% in 2012, which is in a stalemate.

In addition, before the earthquake disaster measures law was implemented, seismic reinforcement of public buildings should be carried out by public institutions, but due to budgetary problems, seismic reinforcement of public facilities nationwide has not been properly performed.

On the other hand, in the domestic school building seismic reinforcement construction according to the prior art, the toggle damping damping method, the window type damping damper method, the double steel pipe buckling reinforcement brace method has been used.

However, the above methods are a problem based on the vibration suppression design that is not used in Korea, the construction period is long, and the earthquake-resistant construction cost of at least 200 million won per building, and above all, the structure of the building is hate after construction The disadvantage is that it changes to.

In detail, the toggle vacuuming method and the double steel pipe buckling reinforcement brace method block the window of the user inside the steel frame installed on the outside of the building to block the window and change the school building to a space like a prison after construction.

In addition, the window-type damping damping method reduces the height of the existing window opening by about 400 ~ 500mm, constructs it by painting the iron plate, and the iron plate reduces the opening noticeably, and distinguishes it from the appearance of the adjacent classroom and remodeling purpose. Damage.

Accordingly, an object of the present invention is to provide a method for building earthquake-resistant reinforcement and remodeling which can achieve lateral support reinforcement of excellent performance through simple and rapid construction.

Building seismic reinforcement and remodeling construction method according to the present invention for achieving the above object, (a) the outer front surface of the intersection with the upper beam of the pillar of the building to be remodeled, and the intersection with the lower beam of the pillar The outer surface of the site is treated with a rough surface, and a fixing member is provided on the outer front of the intersection with the upper beam of the pillar and the outer front of the intersection with the lower beam of the pillar. Doing; (b) installing a PC panel layer by layer on the front surface of the pillar; (c) installing the external reinforcing bars projecting to the upper and lower parts of the PC panel and the assembled reinforcing bars for binding the fixing member to upper and lower spaces of the PC panel installed for each floor; (d) installing the formwork in spaced upper and lower spaces of the PC panels installed for each floor; And (e) pouring concrete into the formwork.

Preferably, before the step (a), further comprising the step of constructing the lower foundation reinforcement of the column of the building to be remodeled.

In addition, in the step (b), further comprising the step of installing an assembly reinforcing bar to the bottom base reinforcing reinforcement of the column and the outer reinforcement protruding to the bottom of the PC panel and the fixing member.

On the other hand, the building seismic reinforcement and remodeling construction method according to the present invention, (a) the outer front surface of the intersection of the front surface of the pillar of the building to be remodeled and the upper beam of the pillar, and the lower portion of the pillar Rough surface treatment of the external front surface of the intersection with the beam, and the external front surface of the intersection of the front surface of the pillar and the upper beam of the pillar, and the intersection of the lower beam of the pillar Installing a fixing member on an outer front surface of the site; (b) assembling the reinforcing bars and the formwork to the fixing member for installing the shear wall on the front surface of the pillar; And (c) site-casting concrete on the formwork.

In addition, in the step (b), the assembled reinforcing bar is installed in combination with the reinforcing bar of the lower foundation of the pillar, the site-pouring concrete is poured including the coupling portion of the reinforcing bar and the lower foundation reinforcing steel It is characterized by.

According to the present invention, the lateral support reinforcement (seismic reinforcement reinforcement) of excellent performance can be calculated by simple and rapid construction, and the effect of increasing the lateral support of the old aging reinforced concrete and steel structures can be obtained.

In addition, according to the present invention, it is possible to further increase the lateral force resistance of the beam-column of the building to be remodeled.

In addition, according to the present invention, not only can the construction performance and construction period in the seismic reinforcement construction of the building be significantly improved, but also the construction cost can be greatly reduced.

In addition, according to the present invention, construction is possible even on weekends and holidays due to the simple construction characteristics, the construction of the school building is also possible during the semester.

In addition, according to the present invention, not only functional damage does not occur in an existing building such as appearance and light, but also a remodeling effect can be achieved.

1 is a flow chart illustrating a method of building earthquake-resistant reinforcement and remodeling construction according to an embodiment of the present invention;

2 is a flow chart illustrating a method for building earthquake-resistant reinforcement and remodeling according to another embodiment of the present invention;

3 is a view showing the frame structure of the building to be constructed of the seismic reinforcement and remodeling construction method according to the present invention, and

4 to 12 is a view showing the execution process of the building seismic reinforcement and remodeling construction method according to the present invention.

Hereinafter, with reference to the drawings will be described the present invention in more detail. It should be noted that the same elements in the figures are represented by the same numerals wherever possible. In addition, detailed descriptions of well-known functions and configurations that may unnecessarily obscure the subject matter of the present invention will be omitted.

1 is a flow chart illustrating a method of building earthquake-resistant reinforcement and remodeling construction according to an embodiment of the present invention. Hereinafter, referring to FIG. 1, a method for building earthquake-resistant reinforcement and remodeling according to an embodiment of the present invention will be described. FIG.

In FIG. 3, a frame structure including a foundation 300, a pillar 400, and upper and lower beams 500 of a building to be constructed in a method for building earthquake-resistant reinforcement and remodeling according to the present invention is disclosed.

First, the installer installs the reinforcing reinforcing bar 350 on the upper part of the foundation 300 as shown in FIG. 4 (S110). Next, the contractor roughened the outer front surface of the intersection of the lower beam 500 and the first floor column 400 of the first floor column 400 adjacent to the foundation 300, and bolts, etc., on the corresponding site. The fixing member 450 is inserted into the front surface of the lower beam 500 and installed (S120).

On the other hand, in the practice of the present invention may use the existing foundation 300 structure as described above, by constructing a micro pile in the surrounding ground of the existing foundation 300, it is also possible to reinforce the existing foundation 300 will be.

Next, the contractor roughened the outer front surface of the intersection of the upper beam 500 and the first floor pillar 400 of the first floor pillar 400, and fixed members ( 450 is installed and the insertion hole 410 is installed in the column 400 so that the fixing member 450 for mounting the PC panel 600 can be inserted thereinto.

Next, the installer installs the first floor PC panel 600 on the front surface of the first floor pillar 400 as shown in FIG. 6, and the fixing hole 630 formed through the interior of the PC panel 600 is the pillar 400. It is installed so that it overlaps with the insertion hole 410 formed in the front ().

In addition, as shown in FIG. 6, the PC panel 600 has an outer beam 650 of the PC panel 600 protruding from the upper and lower portions of the PC panel 600 to the upper beam 500 and the lower beam of the column 400. It is installed so as to be adjacent to the fixing member 450 which is constructed in each of the 500.

Next, the installer installs a fixing member 450 such as a bolt to penetrate the fixing hole 630 and the insertion hole 410 at the same time, and then, by pouring mortar 635 into the fixing hole 630 as shown in FIG. 7. PC panel 600 is fixed to the column 400 is installed (S130).

Then, the contractor 450 as shown in FIG. 8, the fixing member 450 installed on the lower reinforcing bar 350 and the outer reinforcing bar 650 protruding to the lower part of the PC panel 600 and the lower beam 500 of the column 400. ) To install the assembly reinforcing bars 690, and to install the formwork for pouring mortar (or concrete) in the space between the lower portion of the PC panel 600 and the base 300 (S140).

Then, the contractor completes the construction of the coupling block 670 at the intersection of the pillar 400 and the beam 500 as shown in FIG. 9 through the steps of placing and curing mortar (or concrete) in the formwork. (S150).

Thus, the installation of the PC panel 600 in the first floor column 400 and the construction of the coupling block 670 in the lower beam 500 of the first floor column 400 is completed, the contractor as shown in FIG. The second floor PC panel 600 is installed and installed on the second floor column 400. The installation method of the two-layer PC panel 600 proceeds in the same manner as the installation method of the one-layer PC panel 600 described above (S160).

Specifically, the contractor roughened the outer front surface of the intersection of the upper beam 500 and the two-story column 400 of the two-story column 400, and install the fixing member 450 in the corresponding site In addition, the pillar 400 is provided with an insertion hole 410 so that the fixing member 450 for mounting the PC panel 600 can be inserted.

Next, the contractor installs a two-layer PC panel 600 on the front of the two-layer column 400, but the fixing hole 630 formed through the interior of the PC panel 600 has a front surface of the pillar 400. The outer reinforcing bar 650 of the PC panel 600 protruding to the upper and lower portions of the PC panel 600 is installed so as to overlap with the insertion hole 410 formed in the upper beam. It is installed so as to be adjacent to the fixing member 450 which is constructed on the 500 and the lower beam 500, respectively.

Next, the installer installs a fixing member 450 such as a bolt to penetrate the fixing hole 630 and the insertion hole 410 at the same time, and then, by pouring mortar 635 into the fixing hole 630 as shown in FIG. 10. The second floor PC panel 600 is fixed to the second floor column 400.

Then, the contractor, as shown in FIG. 11, the outer reinforcing bar 650 protruding to the upper part of the first floor PC panel 600, the outer reinforcing bar 650 protruding to the lower part of the second floor PC panel 600, and the first floor column ( An assembling reinforcing bar 690 that binds the fixing member 450 inserted into the beam 500 between the 400 and the second floor column 400 is installed, and the upper part of the first floor PC panel 600 and the second floor PC panel ( Forming the mold for pouring mortar (or concrete) in the spaced space between the lower portion of 600) (S170).

The contractor then goes through the steps of placing and curing mortar (or concrete) on the formwork of the beam 500 and the column 400 between the first and

second columns

400 and 400 as shown in FIG. Construction of the coupling block 670 at the intersection is completed (S180).

As described above, the contractor stacks the PC panels 600 for each floor on the pillars 400 for each floor, and the fixing member 450 and the PC panel may be disposed at the intersection of the upper beam 500 and the pillars 400 of the last floor. Coupling block 670 in the upper beam 500 of the last layer by installing an assembled reinforcing bar 690 that binds the outer reinforcing bar 650 protruding to the top of 600 and pouring and curing mortar (or concrete). Will complete the construction.

As described above, according to the building seismic reinforcement and remodeling construction method according to an embodiment of the present invention, not only can significantly reduce the construction period and construction cost through on-site installation of the PC panel 600, but also various Through the PC panel 600 having a shape, color and shape, it is possible to achieve a remodeling effect of the existing building.

In addition, according to the building earthquake-resistant reinforcement and remodeling construction method according to an embodiment of the present invention, the PC panel 600 is installed on the front surface of the pillar 400, the pillar 400 and the beam 500 of By forming the coupling block 670 on the outer front surface of the intersection, it is possible to dramatically increase the beam-column rigidity of the building to be remodeled.

In addition, according to the building seismic reinforcement and remodeling construction method according to an embodiment of the present invention, by installing the PC panel 600 around the longitudinal direction in the front (front) of the column 400, the existing building Almost no damage to the appearance and function of the.

2 is a flow chart illustrating a method for building earthquake-resistant reinforcement and remodeling according to another embodiment of the present invention. Building seismic reinforcement and remodeling construction method according to another embodiment of the present invention, unlike in the building earthquake-resistant reinforcement and remodeling construction method according to an embodiment of the present invention in FIG. By this, the shear wall to the front surface of the pillar 400 is provided.

Hereinafter, with reference to FIG. 2, a method for building earthquake resistance reinforcement and remodeling according to another embodiment of the present invention will be described.

First, the installer installs the reinforcing reinforcing bar 350 on the upper part of the foundation 300 as shown in FIG. 4 (S210). Next, the contractor roughened the outer front surface of the intersection of the lower beam 500 and the pillar 400 of the pillar 400 adjacent to the foundation 300, and fixed members such as bolts to the portion 300. 450 is installed to install the front (front surface) of the lower beam 500 (S230).

Next, the contractor roughened the outer front surface of the intersection of the upper beam 500 and the first floor pillar 400 of the first floor pillar 400, and fixed members ( 450 is installed and the insertion hole 410 is installed in the column 400 so that the fixing member 450 for inserting the reinforcing bars in the shear wall can be inserted therein.

Next, the installer inserts the fixing member 450 into the insertion hole 410 and then arranges the reinforcing bar inner reinforcing bar on the front surface of the column 400 so as to be engaged with the fixing member 450 installed in the insertion hole 410. Next, the assembly member 690 is connected to the fixing member 450 installed on the inner reinforcing bar and the lower beam 500, and the reinforcing bar 350, and the fixing is installed on the inner reinforcing bar and the upper beam 500. The assembly reinforcing bars 690 connecting the members 450 are installed (S250).

Next, the contractor may install the reinforcing bars 350, the fixing members 450 installed on the lower beam 500, and the assembled reinforcing bars 690, and the internal reinforcing bars disposed on the front surface of the pillar 400. , An assembly reinforcing bar 690 of the fixing member 450 installed on the front surface of the pillar 400, and their assembled reinforcing bars 690, the fixing member 450 installed on the upper beam 500, and the internal reinforcing bars. The formwork for constructing the shear wall is installed in the vicinity of the), and the construction of the shear wall is completed by placing and curing the concrete on the form (S270).

On the other hand, the contractor can sequentially install the shear wall by layer on the outer surface of the pillar 400 and the intersection of the pillar 400 and the beam 500 in the manner described above.

As described above, according to the building seismic reinforcement and remodeling construction method according to another embodiment of the present invention, the construction period and construction cost through the site-installation of the shear wall on the front surface of the column 400 significantly Not only can it reduce, but also the site of the shear wall to have a variety of shapes, and through the finishing construction so that the shear wall has a variety of colors and shapes, it is possible to achieve the remodeling effect of the existing building.

In addition, according to the building seismic reinforcement and remodeling construction method according to another embodiment of the present invention, the shear wall on the front (front) of the pillar 400, the outside of the intersection of the column 400 and the beam 500 By constructing the shear wall integrally up to the front, the beam-column stiffness of the remodeled building can be dramatically increased.

In addition, according to the building seismic reinforcement and remodeling construction method according to another embodiment of the present invention, by installing the shear wall around the longitudinal direction in the front (front) of the column 400, the appearance and function of the existing building Almost no damage.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. Singular expressions include plural expressions unless the context clearly indicates otherwise. In this application, the terms "comprise" or "have" are intended to indicate that there is a feature, number, step, operation, component, part, or combination thereof described in the specification, and one or more other features. It is to be understood that the present invention does not exclude the possibility of the presence or the addition of numbers, steps, operations, components, components, or a combination thereof.

While the above has been shown and described with respect to preferred embodiments and applications of the present invention, the present invention is not limited to the specific embodiments and applications described above, the invention without departing from the gist of the invention claimed in the claims Various modifications can be made by those skilled in the art, and these modifications should not be individually understood from the technical spirit or the prospect of the present invention.

Industrial applicability of the present invention is recognized in the construction industry.

Claims

(a) the outer front surface of the intersection with the upper beams of the pillar of the column to be remodeled, and the outer front surface of the intersection with the lower beam of the pillar; Installing a fixing member on an outer front surface of the intersection of the front surface and an outer front surface of the intersection with the lower beam of the pillar;

(b) installing a PC panel layer by layer on the front surface of the pillar;

(c) installing the external reinforcing bars projecting to the upper and lower parts of the PC panel and the assembled reinforcing bars for binding the fixing member to upper and lower spaces of the PC panel installed for each floor;

(d) installing the formwork in spaced upper and lower spaces of the PC panels installed for each floor; And

(e) pouring concrete into the formwork

Building seismic reinforcement and remodeling construction method comprising a.
The method of claim 1,

Before step (a) above,

Building seismic reinforcement and remodeling construction method further comprising the step of reinforcing the lower foundation reinforcement of the column of the building to be remodeled.
The method of claim 2,

In step (b),

And installing the assembled reinforcing bar that binds the lower basic reinforcing bar of the pillar, the outer reinforcing bar protruding to the lower part of the PC panel, and the fixing member.
(a) Surface treatment of the front surface of the pillar of the building to be remodeled and the external front surface of the intersection of the upper beam of the pillar, and the external front surface of the intersection of the lower beam of the pillar. And installing a fixing member on an outer front surface of an intersection portion of the front surface of the pillar and an upper beam of the pillar, and an outer front surface of an intersection portion of the pillar and the lower beam of the pillar;

(b) assembling the reinforcing bars and the formwork to the fixing member for installing the shear wall on the front surface of the pillar; And

(c) pouring concrete into the formwork;

Building seismic reinforcement and remodeling construction method comprising a.
The method of claim 4, wherein

Before step (a) above,

Building seismic reinforcement and remodeling construction method further comprising the step of reinforcing the lower foundation reinforcement of the column of the building to be remodeled.
The method of claim 5,

In step (b),

The assembly reinforcing bar is installed in combination with the reinforcing reinforcement of the lower foundation of the column, the site-pouring concrete is to be poured including the coupling portion of the reinforcing reinforcing bar and the reinforcing base reinforcement structure building seismic reinforcement and remodeling construction method.