KR20110076665A - Earth quake-proof reinforcement sturcture of remodeling building - Google Patents

Abstract

PURPOSE: An earthquake-proof reinforcement structure of a remodeling building is provided to improve earthquake-resistant performance by recovering the rigidity of a beam. CONSTITUTION: An earthquake-proof reinforcement structure of a remodeling building comprises a frame, a supporting member(140) and a tensioning gear(160). The frame is composed of a post and beam which are made of concrete and steel reinforcing bar. The supporting member is installed in order to be arranged outside frame. The tensioning gear is installed in the supporting member in order to be connected to the beam. The tensioning gear reduces the vertical load added to the beam. The tensioning gear comprises a clamping part, a tension member and a connecting member. The clamping part is installed in the supporting member. The both end part is fixed in the clamping part after tension member is built-in. The connecting member transfers the force of restitution to the beam from the tension member.

Description

EARTH QUAKE-PROOF REINFORCEMENT STURCTURE OF REMODELING BUILDING}

The present invention relates to a seismic reinforcing structure of a remodeling building, and more particularly, to a seismic reinforcing structure of a remodeling building that can improve the seismic performance of the remodeling building by a seismic reinforcing structure.

Recently, as an alternative to the demolition and new construction of existing reinforced concrete buildings, interest in remodeling has been continuously increasing. This is due to the rapid increase in the demand for housing due to the rapid progress of urbanization, and the improvement of the quality level and utilization of aging inventory buildings. This is due to the fact that remodeling is recommended in terms of improving the level of demands, the need for environmentally friendly building management policies, and the prevention of land development due to reckless construction.

This remodeling activity has been mainly focused on special buildings such as offices, shopping malls, hospitals, etc., but recently the remodeling of the housing sector, especially buildings such as schools, is being activated.

In addition, with the growing interest in the environment and the economic efficiency, governments have a policy stance to reduce environmental waste and recycle existing structures as much as possible, increasing the number of buildings opting for renovation in addition to new construction or reconstruction. It is expected to do.

On the other hand, in the case of buildings that were built before 1988 in relation to remodeling, the relevant provisions for earthquakes were not provided, so the seismic design was not applied. Therefore, the buildings that were built before 1988 were remodeled. Earthquake-resistant reinforcement works are to be carried out for the frames.

In view of the most common seismic reinforcement methods for remodeling, reinforce the member strength by adding steel plates to the beams or columns of existing buildings or by adding cast-in-place concrete. It has been added to the concrete ramen structure or has been constructed by the method of steel frame by the moment bonding method.

However, the wet method using the existing cast-in-place concrete among the above methods is a problem that the construction work using the formwork and the copper bar is accompanied with a lot of waste materials and the construction period also takes a relatively long time.

In addition, while the reinforcement method by steel has the advantage of being prefabricated, there is a problem in that the construction cost and construction period increases, such as a relatively high construction cost and the addition of a fireproof coating process.

An object of the present invention is to provide a seismic reinforcing structure of a remodeled building that can improve the seismic performance of the remodeled building and has excellent workability.

The seismic reinforcement structure of the remodeling building according to the present invention is mounted to the support member so as to be connected to the beam and at least two support members installed to be disposed outside of the frame, and a frame composed of reinforcement and concrete columns and beams. And a tensioning device for reducing the vertical load applied to the beam.

The tension device includes a fixed unit installed on the support member, and a tension member and the pillar and the beam which both ends are fixed to the fixed unit after being tensioned to reduce vertical load applied to the beam through restoring force by tension. It is fixedly installed and mounted to penetrate the tension member may be provided with a plurality of connecting members for transmitting the restoring force generated from the tension member to the beam.

The fixing unit may include a fixing member installed in the through hole provided in the support member so that the tension member penetrates, and a wedge member inserted into the insertion hole provided in the fixing member to fix the tension member.

The connecting member is provided in the body formed in a bent shape, the body and the mounting hole is mounted to the mounting member for joining the body to the column or beam, and provided in the body so as not to interfere with the mounting hole It may be provided with a tension member installation hole through which the tension member passes.

The plurality of connection members may be installed on the beam and the pillar to be disposed in an arch shape between the support members.

According to the present invention, there is an effect that can improve the seismic performance by restoring the deflection and rigidity of the beam provided in the remodeled building through the tension device.

In addition, since the seismic performance can be improved only by installing the tension device, the workability is excellent. That is, the construction of the support member after the construction of the support member is equipped with a connection member to the beam and the column provided in the remodeling building can be restored to the deflection and stiffness of the beam through the tension material has a simple construction and shorten the construction period.

Hereinafter, a seismic reinforcing body of a remodeling building according to an embodiment of the present invention will be described with reference to the accompanying drawings.

1 is a block diagram showing the seismic reinforcement of the remodeling building according to an embodiment of the present invention, Figure 2 is a configuration of the seismic reinforcing body of the remodeling building according to an embodiment of the present invention shown in FIG. It is also.

1 and 2, the seismic reinforcement body 100 of the remodeled building (hereinafter, referred to as “seismic reinforcement body”) includes, for example, a frame 120, a support member 140, and a tension device 160. do.

Frame 120 is composed of columns 122 and beams 124 made of reinforcing bars (not shown) and concrete (122a, 124a). That is, the seismic reinforcement body 100 according to the present invention may be applicable when the remodeling building uses a composite column and a composite beam composed of reinforcing bars and concrete 122a and 124a as a frame.

However, the seismic reinforcement body 100 according to the present invention may not be employed only when remodeling, and the vertical load applied to the beam through the seismic reinforcement body 100 according to the present invention may be reduced even during construction of a new building. For the seismic reinforcement 100 will be available.

Meanwhile, the frame 120 is mostly used as a frame of a remodeled building without being demolished even when the building is remodeled, and the remaining walls and slabs are removed while leaving only the frame 120 when the building is remodeled.

The support member 140 is installed to be disposed outside the frame 120 and may be at least two built. That is, the support member 140 may be constructed to be disposed on both sides of the frame 120.

On the other hand, the support member 140 may be a composite member made of reinforcement and concrete or a composite member filled with concrete in a steel pipe pillar.

In the present embodiment, the case in which the support member 140 is constructed one by one on each side of the frame 120 is described as an example, but is not limited to this, the support member 140 to the number of beams provided in the frame 120 Accordingly, an appropriate number may be provided.

The tension device 160 is mounted to the support member 140 to be connected to the beam 124 to reduce the vertical load applied to the beam 124.

On the other hand, the tension device 160, for example, may be provided with a fixing unit 170, the tension member 180, and the connecting member 190.

The fixing unit 170 is fixed to the support member 140 and fixes both ends of the tension member 180. To this end, the fixing unit 170, as shown in Figure 3, the fixing member 172 is installed in the through-hole 142 provided in the support member 140, and the insertion hole provided in the fixing member 172 It may be provided with a wedge member 174 is inserted into the (172a) to secure the tension member 180.

The fixing member 172 is fixedly installed in the through hole 142 of the supporting member 140, and the cross section of one side is fixed to the tension member 180 by the wedge member 174 inserted into the insertion hole 172a. It is formed wider than the cross section. That is, the fixing member 172 may be formed to have a square pyramid shape, the upper portion is cut.

Meanwhile, as shown in FIG. 3, the wedge member 174 may be configured to hold the tension member 180 in association with four blocks. That is, when four blocks are inserted into the insertion hole 172a of the fixing member 172, the tension member 180 is fixed while being deformed by the wedge member 174 consisting of four blocks.

Looking at this in more detail, first, when the tension member 180 is inserted into the through hole 142 of the support member 140 is tension member 180 is tensioned by a tension jack (not shown). When tension of the tension member 180 is completed by the tension jack, the wedge member 174 is inserted into the insertion hole 172a of the fixing member 172.

At this time, the tension member 180 is deformed and fixed by the wedge member 174 and does not move toward the through hole 142 of the support member 140.

After the tension member 180 is tensioned, both ends of the tension member 180 are fixed to the fixing unit 170, and the vertical load applied to the beam 122 is reduced through the restoring force by the tension. The tension member 180 may be made of a PS steel wire or a PS steel bar.

Looking in more detail with respect to the load applied by the tension member 180, first one side of the tension member 180 is fixed to any one of the support member 140 by the fixing unit 170.

Then, when the other side of the tension member 180 is installed in the fixing member 172 installed in the remaining support member 140, the tension member 180 is tensioned by the tension jack. At this time, by the tension of the tension member 180, the tension member 180 adds a vertical load toward the lower side to the beam 122.

Then, when the tension of the tension member 180 is completed, the other side of the tension member 180 is fixed to the fixing member 172 by the wedge member 174. As described above, both sides of the tension member 180 are fixed to the fixing member 172 installed on the support member 140, and the tension member 180 generates a restoring force due to tension.

That is, the tension member 180 generates a restoring force, that is, a compressive force, to have an original shape. As such, when the tension member 180 generates a compressive force, the vertical load toward the upper side is applied to the beam 124 by the tension member 180. This will be described later.

The connection member 190 is fixedly installed on the column 122 and the beam 124, and is mounted to penetrate the tension member 180 to transmit the restoring force generated from the tension member 180 to the beam 124. On the other hand, the connecting member 190 may be provided in plurality.

In addition, the connection member 190 may include, for example, a body 192, a mounting member 194, a mounting hole 196, and a tension member installation hole 198, as illustrated in FIGS. 4 and 5. .

The body 192 may be formed in a bent shape. Accordingly, when the body 192 is installed in the pillar 122 and the beam 124, the body 192 is joined to two sides of the pillar 122 and the beam 124.

On the other hand, the mounting member 194 is fixed to the body 192 to the column 122 and the beam 124. That is, the fixing member 194 penetrates the mounting hole 196 provided in the body 192 and is inserted into the pillar 122 and the beam 124.

Mounting member 194 may be a stud as an example, the mounting member 194 is provided with a plurality of fixed to the two sides of the pillar 122 and the beam 124 body 192 formed in a bent shape.

In addition, the tension member installation hole 198 may be provided in the body 192 so as not to interfere with the mounting hole 196, the tension member 180 is installed through. Accordingly, the compressive force generated by the tension member 180 may be transmitted to the beam 124 through the body 192.

On the other hand, the connection member 190 may be installed in the pillar 122 and the beam 124 to be arranged in an arch shape between the support member 140 provided on both sides of the frame 120. That is, as shown in FIG. 1, since the connection member 190 is disposed to have an arch shape, the tension member 180 penetrating the connection member 190 is also installed to have an arch shape.

Accordingly, when the tension member 180 is tensioned, a vertical load in the downward direction is applied to the beam 124, but when the tension member 180 is fixed, the compressive force generated by the restoring force of the tension member 180 is generated in the upper direction. Vertical load is applied to the beam 124.

As a result, the deflection and rigidity of the beam can be restored.

As described above, it is possible to improve the seismic performance by restoring the deflection and rigidity of the beam 124 provided in the remodeling building through the tension device 160.

In addition, by providing the tension device 160, it is possible to improve the seismic performance has an excellent workability. That is, the tension member 180 is installed after the connecting member 190 is mounted on the pillar 122 and the beam 124 provided in the remodeling building after the support member 140 is constructed. After the tension member 180 is tensioned by fixing both sides of the tension member 180 to the support member 140, the deflection and stiffness of the beam 124 can be restored, so the construction is simple and the construction period can be shortened.

In the above description of the configuration and features of the present invention based on the embodiment according to the present invention, the present invention is not limited thereto, and various changes or modifications can be made within the spirit and scope of the present invention. As will be apparent to those skilled in the art, such changes or modifications fall within the scope of the appended claims.

1 is a block diagram showing a seismic reinforcing body of a remodeling building according to an embodiment of the present invention.

FIG. 2 is a side view of the seismic reinforcing body of the remodeling building according to the embodiment of the present invention shown in FIG. 1.

3 is an enlarged perspective view illustrating a portion 'A' illustrated in FIG. 1.

4 is an enlarged perspective view illustrating a portion 'B' illustrated in FIG. 1.

5 is an enlarged perspective view illustrating a portion 'C' illustrated in FIG. 1.

<Explanation of symbols for the main parts of the drawings>

100: seismic reinforcement of remodeled building

120: skeleton

140: support member

160: tension device

170: fixed unit

180: tension material

190: connecting member

Claims (5)

A framework consisting of columns and beams made of reinforcing steel and concrete; At least two support members installed to be disposed outside the frame; And A tension device mounted on the support member to reduce the vertical load applied to the beam so as to be connected to the beam; Seismic reinforcement structure of the remodeling building comprising a. According to claim 1, wherein the tension device A fixed unit installed on the support member; A tension member having both ends fixed to the fixing unit after being tensioned, and reducing a vertical load applied to the beam through a restoring force by tension; And A plurality of connection members fixedly installed at the pillar and the beam and mounted to penetrate the tension member to transfer restoring force generated from the tension member to the beam; Seismic reinforcement structure of the remodeling building, characterized in that it comprises a. The method of claim 2, wherein the fixing unit A fixing member installed in the through hole provided in the support member so that the tension member passes therethrough; And A wedge member inserted into an insertion hole provided in the fixing member to fix the tension member; Seismic reinforcement structure of the remodeling building, characterized in that it comprises a. The method of claim 2, wherein the connecting member A body formed in a bent shape; A mounting hole provided in the body and equipped with a mounting member for joining the body to the pillar or beam; And A tension member installation hole provided in the body so as not to interfere with the mounting hole; Seismic reinforcement structure of the remodeling building, characterized in that it comprises a. The method of claim 1, wherein the plurality of connection members The seismic reinforcement structure of the remodeling building, characterized in that installed on the beam and the column so as to be disposed between the support member in an arch shape.

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