KR102350905B1 - Seismic Retrofitting Structure and Method Using Steel Brace for Masonry Structure - Google Patents

Abstract

The present invention provides an efficient reinforcement of the seismic performance according to the omnidirectional tension action by using a frame and a steel wire (cable or steel bar) in a building made of a masonry wall. a plurality of corner frames that are in surface contact with each other, extend vertically to extend vertically, contact and support in the longitudinal direction, and have fasteners on the upper and lower portions; A masonry-resistant reinforcement structure using a steel wire comprising; a fastening steel wire member for connecting a plurality of the corner frames in the transverse direction by binding on the fasteners of the corner frame, but pulling and fixing between the corner frames so as to aggregate the masonry wall structure. to provide.

Description

{Seismic Retrofitting Structure and Method Using Steel Brace for Masonry Structure}

The present invention relates to a masonry earthquake-resistant reinforcement structure using a steel wire and a seismic reinforcement construction method therefor, and more particularly, to a building made of a masonry wall, a frame and a steel wire (cable or steel rod) are used to improve the earthquake-resistant performance according to the omnidirectional tension action. It relates to a seismic reinforcement structure of masonry using a steel wire that can be effectively reinforced, and a seismic reinforcement construction method therefor.

In general, a masonry is a building structure that transmits vertical load by stacking block-shaped bricks and composes an external exterior material and an internal space.

Buildings made of masonry are difficult to respond to lateral displacement and vibration during earthquakes, and damage occurs in the mortar part where the shear force between the masonry bricks is weak, causing the building to collapse or be damaged, resulting in human life and property damage. there was.

Accordingly, technical attempts to reinforce the seismic performance of existing buildings made of masonry are continuously being made.

As a prior art disclosed to solve the above problems, in Korean Patent Registration No. 991851 (October 28, 2010), in a masonry in which a brick wall surrounded by columns and beams is formed, it is attached in close contact with the wall of the brick wall. A reinforcing material to be used, a plurality of frames to which the brick wall is attached in close contact with the contact surface in contact with the pillars and beams, and a frame fixing anchor for fixing the frames to the pillars and beams and the brick wall together with the reinforcing material are configured Accordingly, there is known a seismic reinforcement structure of a masonry masonry that can improve seismic performance while integrally coupled to the structure.

However, in the case of the above-mentioned prior art, there was a problem that the construction structure including the reinforcing material is complicated and thus the construction is difficult, and it is necessary to secure an installation space for the structure separately, and there is a problem that the exterior of the building may be damaged.

In addition, since the above-described prior art simply forms a contact support structure for the outer wall surface of the masonry brick, the cohesive efficiency corresponding to the building is low, and it is difficult to exhibit sufficient seismic performance.

KR Registered Patent Publication No. 10-0991851 (2010.10.28.)

The present invention is to solve the above problems, and the structure is simple because it is configured to form a mutually pulling cohesive structure by a steel wire (cable or steel bar) together with a frame at the inner and outer corners of the masonry brick. An object of the present invention is to provide a masonry masonry earthquake-resistant reinforcement structure using a steel wire that not only promotes directional tension action but also reinforces excellent earthquake-resistance performance, and a seismic reinforcement construction method therefor.

The seismic reinforcement structure of masonry using a steel wire proposed by the present invention is in surface contact with the inner and outer corners of a structure made of a polygonal masonry wall, but extends vertically up and down to support contact in the longitudinal direction, and fasteners at the top and bottom A plurality of corner frames provided with; and a fastening steel wire member for connecting the plurality of corner frames in the transverse direction by binding on the fasteners of the corner frames and pulling and fixing the corner frames between the corner frames so as to aggregate the masonry wall structure.

The corner frame is composed of a "L"-shaped cross-sectional shape forming a right angle, but is composed of a single-type corner frame configured to contact and support the outside of the outer convex corner of the corners of the masonry wall structure.

In addition, the corner frame is configured in a "L"-shaped cross-sectional shape forming a right angle, but corresponding to the inside and outside of the corners concave inward among the corners of the masonry wall structure to contact and support the masonry wall in a sandwich manner. made to be ready

The double-sided corner frame includes an outer frame disposed outside the masonry wall and the fastening steel wire member is coupled to each other to pull and fix between the corner frames, and an inner frame disposed inside the masonry wall, wherein the inner frame includes the It constitutes a steel wire tightening means for pulling and fixing the outer frame inward.

In addition, the present invention can be configured to further include a longitudinal force reinforcement part installed corresponding to the slab in the masonry wall structure, but pulling and fixing the masonry wall structure so as to aggregate it in the longitudinal direction.

The longitudinal force reinforcing unit includes a pair of slab brackets that are fixedly installed and arranged at vertical intervals on the slab of the masonry wall structure, and a longitudinal force fastening steel wire member connecting the pair of slab brackets to be pulled and fixed in the longitudinal direction. make up

And, the seismic reinforcement method of masonry using steel wire proposed by the present invention is (a) a plurality of corner frames having fasteners at the top and bottom to support them in a surface contact state corresponding to the corners in a structure made of a polygonal masonry wall. installing; (b) attaching one end to the fastener of the corner frame, but installing a fastening steel wire member so as to surround the outside of the masonry wall structure; (c) aggregating a plurality of the corner frames and the steel fastening wire members with respect to the masonry wall structure, and tightening and fixing the fastening steel wire members by pulling and fixing the corner frame to the masonry wall structure.

In step (a), a single-type corner frame is installed on the outside of an outwardly convex edge among the corners of the masonry wall structure, and a double-type corner frame is installed by sandwiching the masonry wall on an inwardly concave corner among the corners of the masonry wall structure. .

In installing the double-type corner frame, an outer frame and an inner frame are respectively installed outside and inside the masonry wall, and a steel wire fastening means is installed between the outer frame and the inner frame to be pulled and fixed based on the masonry wall, The tightening steel wire member is connected to the outer frame and fixed by pulling.

In addition, the present invention can also be configured to further include the step of (d) installing a longitudinal force reinforcement to be able to aggregate in the longitudinal direction corresponding to the slab of the masonry wall structure.

In the step (d), the steps of installing a pair of slab brackets on the upper and lower slabs of the masonry wall structure, the steps of binding and connecting the longitudinal tension steel wire members in the longitudinal direction between the pair of slab brackets, and the slab It constitutes the step of fastening and fixing the longitudinal force fastening steel wire member connected on the bracket.

According to the seismic reinforcement structure of masonry using steel wire according to the present invention and the seismic reinforcement method therefor, it is integrated by pulling and fixing between the frames with a steel wire (cable or steel bar) while supporting the frame in contact with the edge of the masonry wall structure in the longitudinal direction. The omnidirectional tension action promotes cohesive force to improve seismic resistance and stability, and the simple structure promotes rapid construction and excellent workability, while significantly reducing construction costs to achieve economic feasibility.

1 is a perspective view showing an embodiment of a masonry earthquake-resistant reinforcement structure using a steel wire according to the present invention.
Figure 2 is a front view showing an embodiment of the seismic reinforcement structure of the masonry using a steel wire according to the present invention.
3 is a plan view showing a first embodiment of a corner frame in an embodiment of a masonry earthquake-resistant reinforcement structure using a steel wire according to the present invention.
4 is a plan view showing a second embodiment of a corner frame in an embodiment of a masonry earthquake-resistant reinforcement structure using a steel wire according to the present invention.
5 is a front view showing another embodiment of the seismic reinforcement structure of a masonry masonry using a steel wire according to the present invention.
6 is a block diagram schematically showing an embodiment of a masonry-resistant reinforcing method using a steel wire according to the present invention.
7 is a block diagram schematically showing another embodiment of the masonry earthquake-resistant reinforcement method using a steel wire according to the present invention.

The present invention provides a plurality of corner frames that are in surface contact corresponding to the inner/outer corners of a structure made of a polygonal masonry wall, but extend vertically and vertically to contact and support in the longitudinal direction, and include fasteners at the upper and lower parts; A masonry-resistant reinforcement structure using a steel wire comprising; a fastening steel wire member for connecting a plurality of the corner frames in the transverse direction by binding on the fasteners of the corner frame, but pulling and fixing between the corner frames so as to aggregate the masonry wall structure. It is characterized by the technical composition.

In addition, the present invention comprises the steps of: (a) installing a plurality of corner frames having fasteners on the upper and lower parts to support them in a surface contact state corresponding to the corners in a structure made of a polygonal masonry wall; (b) attaching one end to the fastener of the corner frame, but installing a fastening steel wire member so as to surround the outside of the masonry wall structure; (c) aggregating the plurality of corner frames and the fastening steel wire members with respect to the masonry wall structure by tightening and fixing the fastening steel wire members by pulling and fixing the corner frames to the masonry wall structure; using a steel wire comprising a It is characterized by the technical composition of the masonry masonry earthquake-resistance reinforcement construction method.

Next, a preferred embodiment of the seismic reinforcement structure of a masonry masonry using a steel wire according to the present invention will be described in detail with reference to the drawings.

First, an embodiment of a masonry earthquake-resistant reinforcement structure using a steel wire according to the present invention includes a corner frame 10 and a tightened steel wire member 20 as shown in FIGS. 1 to 3 .

As shown in Figs. 1 and 3, the corner frame 10 is provided in surface contact to correspond to the angled corner of the structure C made of a masonry wall. That is, the corner frame 10 is a structure that is applied to all corners of the masonry wall structure (C) and is in surface contact, and is configured to include a plurality.

The corner frame 10 forms a length corresponding to the height of the masonry wall structure (C) of FIGS. 1 and 2 and extends vertically up and down, and is configured to contact and support the edge of the masonry wall structure (C) in the longitudinal direction. .

The corner frame 10 has two contact support surfaces, that is, a structure for collectively contacting and supporting two adjacent surfaces at the edge of the masonry wall structure (C), and has a “L”-shaped cross-sectional shape forming a right angle.

A fastener 11 is provided on the upper and lower portions of the corner frame 10 to form the tightening steel wire member 20 to be installed.

The corner frame 10 is configured by elastically applying to the inner/outer corners of the masonry wall structure (C) as it is applied to each corner corresponding to the structure (C) made of the polygonal masonry wall.

The first embodiment of the corner frame 10 is, as shown in FIG. 3, with respect to the masonry wall structure (C) having only an outwardly convex edge, outside of the outwardly convex edge of the masonry wall structure (C). Correspondingly, it consists of a single-type corner frame (10a) configured to support contact.

The single-type corner frame (10a) forms a structure in which only one corner frame (10) is applied to all corners of the masonry wall structure (C).

As shown in FIG. 4, the second embodiment of the corner frame 10 is a masonry wall structure (C) in which outwardly convex corners as well as inwardly concave corners are combined. Corresponding to the inside and outside of the concave corner, it consists of a double corner frame (10b) configured to contact and support the masonry wall in a sandwich manner.

The double corner frame (10b) is arranged inside and outside based on the masonry wall structure (C) to form a pair of two, and is configured by dividing the outer frame (15) and the inner frame (17).

The outer frame 15 is disposed outside based on the masonry wall, and since the tightening steel wire member 20 is coupled and connected to form a structure connected to the single-type corner frame 10a, between the plurality of corner frames 10 It is possible to pull and fix.

The inner frame 17 is disposed on the basis of the masonry wall.

A steel wire tightening means 19 is formed between the outer frame 15 and the inner frame 17 to maintain a pulling and fixed state integrally with each other. That is, the steel wire fastening means 19 holds the outer frame 15 inside the outer frame 15 with respect to the inner frame 17 so that the outer frame 15 can be applied in a pulling support state with the single-type corner frame 10a. It is configured by pulling and fixing.

When the corner frame 10 is configured as in the second embodiment, it is possible to elastically reinforce the earthquake resistance to the structure made of various masonry walls having polygonal shapes.

The tightening steel wire member 20 performs a function of pulling and fixing between the plurality of corner frames 10 so as to surround and aggregate the masonry wall structure (C).

As shown in FIGS. 1 to 3 , the tightened steel wire member 20 is formed in the form of a cable or a steel bar, and is coupled and connected on the fastener 11 of the corner frame 10 to a plurality of the corner frames 10 . ) to be connected and fixed in the transverse direction.

Both ends of the tightened steel wire member 20 have a structure that can be coupled to the fastener 11 of the corner frame 10, and the tightened steel wire member 20 is fixed, but the tightened steel wire member 20 is elastic A steel wire locking means 25 is provided so that it can be tightened in a pulled state.

And, another embodiment of the masonry earthquake-resistant reinforcement structure using the steel wire according to the present invention is installed corresponding to the slab in the masonry wall structure (C) as shown in FIG. It is made to further include a longitudinal force reinforcement part 30 to be pulled and fixed.

As shown in FIG. 5 , the vertical force reinforcing unit 30 constitutes a pair of slab brackets 31 and vertical force tightening steel wire members 35 arranged at vertical intervals.

The slab bracket 31 is fixed and installed corresponding to the slab of the masonry wall structure (C).

The slab bracket 31 can be configured as a single bracket structure extending in the left and right transverse directions on the slab of the masonry wall structure C, and the slab bracket 31 is on the slab of the masonry wall structure C It is also possible to configure a plurality of bracket structures formed so as to have a plurality of them at intervals in the left and right transverse directions.

The longitudinal force tightening steel wire member 35 is connected by pulling and fixing in the longitudinal direction between the pair of slab brackets 31 arranged at an upper and lower interval.

Both ends of the longitudinal force fastening steel wire member 35 are also provided with a steel wire binding means 37 for fixing the longitudinal force fastening steel wire member 35 by elastically pulling and fixing by binding to the slab bracket 31 .

That is, if the present invention is configured as in the other embodiments described above, it is possible to further improve the seismic reinforcing efficiency by promoting the cohesive force in the vertical and longitudinal direction with respect to the masonry wall structure.

Also in the above-described other embodiment, it is possible to implement in the same configuration as in the above-described embodiment except for the above-described configuration, so a detailed description thereof will be omitted.

Next, a preferred embodiment of the seismic reinforcement method for masonry using a steel wire according to the present invention will be described in detail with reference to the drawings.

First, as shown in FIG. 6, an embodiment of the seismic reinforcement construction method for masonry using a steel wire according to the present invention is (a) a corner frame 10 installation step (S10), (b) a tightening steel wire member 20 installation step ( S20), (c) is made including the tightening fixing step (S30) of the tightening steel wire member 20.

In the (a) step (S10), the corner frame 10 having the fasteners 11 at the upper and lower parts is installed corresponding to the corner in the structure C made of the polygonal masonry wall.

In the above, a plurality of corner frames 10 are installed at each position with respect to the masonry wall structure (C), but the corner frame 10 of the “L” cross-sectional shape is erected in the longitudinal direction of the masonry wall structure (C). Install to support by wrapping the corners in surface contact.

When installing the corner frame 10 in step (a) (S10), the single-type corner frame 10a and the double-type corner frame 10b are elastically applied and installed according to the polygonal masonry wall structure (C). That is, according to the shape of the masonry wall structure (C), only the single-type corner frame (10a) is applied and configured, or the double-type corner frame (10b) is applied in combination with the single-type corner frame (10a).

In the above, the single-type corner frame (10a) is installed on the outside of the outwardly convex edge among the corners of the masonry wall structure (C), and the double-type corner frame (10b) is at the inwardly concave corner among the corners of the masonry wall structure (C). install

When installing the double corner frame 10b in the corner frame 10, the masonry wall is installed in a sandwich method, and the outer frame 15 and the inner frame 17 are separately installed on the outside and inside the masonry wall, respectively. .

While installing the outer frame 15 of the double-shaped corner frame 10b to be located outside the masonry wall, the inner frame 17 is installed to be located inside the masonry wall, and then, the outer frame 15 and the inner frame The steel wire tightening means 19 is installed between (17) to be pulled and fixed based on the masonry wall, and the tightening steel wire member 20 is connected to the outer frame 15 to be pulled and fixed.

In the (b) step (S20), one end of the tightening steel wire member 20 is bound to the fastener 11 of the corner frame 10 to connect and fix the plurality of corner frames 10 in the transverse direction. That is, it is installed so as to surround the outside of the masonry wall structure (C) from the tightened steel wire member (20).

In the (c) step (S30), the plurality of corner frames 10 and the tightening steel wire member 20 are integrated and aggregated with respect to the masonry wall structure (C). That is, since the fastening steel wire members 20 interconnecting the plurality of corner frames 10 are fastened and mounted while enclosing the outside of the masonry wall structure (C), the corner frame 10 is attached to the masonry wall structure (C). By pulling and fixing, they are integrated with each other.

And, another embodiment of the masonry earthquake-resistant reinforcement method using the steel wire according to the present invention is as shown in FIG. 7, (d) a longitudinal force reinforcement part ( 30) further comprising the step of installing (S40).

In the step (d) (S40), the step of installing a pair of slab brackets 31 on the upper and lower slabs of the masonry wall structure (C) and the longitudinal tensioning steel wire member between the pair of slab brackets 31 in the longitudinal direction It consists of a step of connecting and installing (35), and a step of fastening and fixing the longitudinal tensioning steel wire member (35) connected to the slab bracket (31).

That is, according to the seismic reinforcement structure of the masonry using the steel wire according to the present invention configured as described above and the seismic reinforcement method therefor, the masonry brick is integrated by pulling and fixing the frame with the steel wire between the frames while supporting the frame in contact with the edge of the masonry wall structure in the longitudinal direction. It is possible to promote cohesive force by omnidirectional tension action on the structure to improve stability as well as seismic performance.

In the above description, a preferred embodiment of the earthquake-resistant reinforcement structure for masonry using the steel wire according to the present invention and a seismic reinforcement construction method therefor have been described, but the present invention is not limited thereto, and within the scope of the claims, the specification of the invention, and the accompanying drawings. Various modifications are possible, and this also falls within the scope of the present invention.

10: corner frame 10a: single type corner frame
10b: double corner frame 11: fasteners
15: outer frame 17: inner frame
19: steel wire fastening means 20: fastening steel wire member
25: steel wire locking means 30: longitudinal reinforcement part
31: slab bracket 35: longitudinal tension steel wire member
37: steel wire binding means

Claims (11)

a plurality of corner frames that are in surface contact to correspond to the inner/outer corners of a structure made of a polygonal masonry wall, but extend vertically to extend vertically to contact and support in the longitudinal direction, and include fasteners at the upper and lower portions; Contained, including;
The corner frame is a single-type corner frame configured to form a right-angled "L"-shaped cross-section, but to correspond to and support the outside of the outwardly convex edge of the corners of the masonry wall structure, and a "L"-shaped cross-section forming a right angle It includes a double corner frame configured to support the masonry wall in a sandwich manner in response to the inside and outside of the concave inward corners among the corners of the masonry wall structure,
The double-type corner frame includes an outer frame disposed on the outside of the masonry wall and secured by pulling and fixing between the corner frames by the fastening steel wire member, and an inner frame disposed inside the masonry wall, wherein the inner frame includes the It includes a steel wire fastening means for pulling and fixing the outer frame inward,
It is installed in response to the slab in the masonry wall structure, but includes a longitudinal force reinforcement part that pulls and fixes the masonry wall structure so that it can be aggregated in the longitudinal direction,
The longitudinal force reinforcing unit includes a pair of slab brackets that are fixedly installed and arranged at vertical intervals on the slab of the masonry wall structure, and a longitudinal force fastening steel wire member connecting the pair of slab brackets to be pulled and fixed in the longitudinal direction. Seismic reinforcement structure of masonry using steel wire including
delete delete delete delete delete (a) installing a plurality of corner frames provided with fasteners at the upper and lower portions to correspond to the corners in a structure made of a polygonal masonry wall and to be supported in a surface contact state; (b) attaching one end to the fastener of the corner frame, but installing a fastening steel wire member to surround the outer periphery of the masonry wall structure; (c) integrating and aggregating a plurality of the corner frames and the fastening steel wire members with respect to the masonry wall structure, tightening and fixing the fastening steel wire members to pull and fix the corner frame to the masonry wall structure; (d) installing a longitudinal force reinforcing unit so as to be able to aggregate in the longitudinal direction corresponding to the slab of the masonry wall structure;
In step (a), a single-type corner frame is installed on the outside of an outwardly convex edge among the corners of the masonry wall structure, and a double-type corner frame is installed by sandwiching the masonry wall at an inwardly concave corner among the corners of the masonry wall structure, ,
In installing the double-type corner frame, an outer frame and an inner frame are respectively installed outside and inside the masonry wall, and a steel wire tightening means is installed between the outer frame and the inner frame to be pulled and fixed based on the masonry wall, By binding and connecting the tightening steel wire member to the external frame, it is configured to pull and fix,
In the step (d), the steps of installing a pair of slab brackets on the upper and lower slabs of the masonry wall structure, the steps of binding and connecting the longitudinal tension steel wire members in the longitudinal direction between the pair of slab brackets, and the slab A masonry-resistance reinforcement construction method using a steel wire comprising the step of fastening and fixing the longitudinal tension steel wire member connected on the bracket.
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