KR101027378B1 - Earthquake-proof wall using block and steel wire and it's construction method - Google Patents

Abstract

PURPOSE: An earthquake-proof wall and a construction method thereof are provided to improve earthquake-resistance by employing both blocks and steel wires to bear a tensile force and a compressive force resulting from earthquake energy. CONSTITUTION: An earthquake-proof wall(100) comprises a frame part, a wall bracket(170), a center bracket(130), and an earthquake-proof brace. The frame part comprises upper and lower horizontal steel studs(120,125) and vertical steel studs(110) which are arranged at a certain interval between the upper and lower horizontal steel studs. The wall bracket is fixed to the crossing parts between the horizontal and vertical steel studs to connect the steel studs together. The center bracket is fixed to the center of the frame part and comprises a center hole cylinder which is operated with oil provided from a hydraulic jack(165) of the lower horizontal steel stud. The earthquake-proof brace is installed between the center bracket and the wall bracket and comprises a block member(140) and a steel wire member(150) to absorb earthquake energy.

Description

Earthquake-Proof Wall Using Block and Steel Wire And It's Construction Method

The present invention relates to a seismic wall, and more particularly, to a seismic design and construction method of seismic design by connecting a central bracket and a wall bracket using blocks and steel wires.

In 1978, after the Hongseong Earthquake, Korea became interested in earthquakes. Since then, the Enforcement Ordinance for Seismic Design was enacted, and from July 1, 1988, mandatory earthquake-proof design was required for buildings of a certain size. However, up to now, there have been few cases of earthquakes, and the studies on earthquakes have been insignificant, and there have been a lot of difficulties in introducing seismic design to make the structures resistant to earthquakes during the design and construction of the structures.

In particular, the buildings designed before July 1988, before the mandatory mandatory seismic design was enforced, had little countermeasures against earthquakes. As such, when an earthquake occurs in a large metropolitan area where many buildings are not seismically designed, significant damage such as collapse of a building occurs.

Indeed, the damage caused by the earthquake that occurred in Kobe, Japan in 1995, is a serious problem. A survey by the Japanese Institute of Architecture conducted after the earthquake revealed that most of the structures damaged by the Kobe earthquake were designed before the Japanese seismic codes were enacted. In particular, in the case of reinforced concrete structures, about 70% of the buildings built before 1971 were damaged. About 35% of the buildings were designed between 1971 and 1981, and about 1981 and later. Only 15% were damaged, with varying degrees of damage, but the least damage to buildings designed since 1981, when seismic reinforcement was applied by applying the new seismic regulations.

Here, as a method of seismic reinforcement, the necessity of reinforcing pillars and slabs, etc., to resist the increased earthquake load is being recovered. For this purpose, the classical methods such as expanding the shear wall or expanding the column cross-section are applied.

In general, in the case of buildings having a steel structure, the steel structure has a small cross section so that deformation occurs largely against horizontal loads such as earthquakes and wind. In order to secure rigidity with respect to the transverse direction of such steel structure, a conventional brace was installed.

1 is a front view of a steel structure having a brace according to the prior art, Figure 2 is a front view showing a state in which the steel structure is displaced according to the horizontal load applied to the steel structure shown in FIG.

Referring to Figure 1, the brace frame (1) method is to install the brace (4) in the X shape in the steel structure consisting of the column (2) and the beam (3). Then, the portion where the brace 4 is in contact with the pillar 2 and the beam 3 is provided with a gusset plate 5 to reinforce the brace 4. When a horizontal load such as an earthquake or wind is applied to the brace frame 1, the brace 4 resists in the axial direction, and the lateral rigidity of the brace frame 1 is large because the axial rigidity of the brace 4 is large. This becomes large. Therefore, it is possible to realize a stable steel frame structure with less lateral deformation to lateral loads.

However, as shown in FIG. 2, when an earthquake with high magnitude occurs and a force equal to or greater than the buckling load of the brace 4 acts in the horizontal direction, the brace 4b installed in the direction of the force receives a tensile force to the maximum load. It can withstand, but the other brace 4a subjected to the compression force is sharply lowered by the compression buckling, the brace frame 1 has an unstable structure.

And because the load due to the earthquake acts repeatedly in the left and right directions by the steel structure, the horizontal load is repeatedly acted in the opposite direction to the horizontal load shown in FIG. At this time, the tensioned brace 4b is subjected to a compressive force again, and the tensioned brace 4b causes compression buckling.

Thus, since the braces 4a and 4b share and support the horizontal load acting on the brace frame 1 together with the main members, which are the pillars 2 and the beams 3, after the braces are buckled, There is also a disadvantage that the deformation is very difficult to recover. In addition, such a steel structure has a problem that the work of the member is not easy and the number of members is large, there is a problem in the construction, and the construction period is prolonged with enormous construction cost because the steel structure is assembled by constructing a steel member having a large load.

The present invention has been made in view of the above point, the work is simple, can shorten the construction period, and by applying the block and steel wire at the same time can bear both the tensile force and the compressive force by the seismic energy to increase the seismic force An object of the present invention is to provide a seismic barrier and a construction method using blocks and steel wires.

The seismic wall using the block and steel wire according to the present invention provided to achieve the above object is an upper transverse steel stud and a lower transverse steel stud, which is arranged to partition the upper and lower layers, the upper and lower transverse steel A frame portion composed of longitudinal steel studs disposed vertically at equal intervals between the studs; A plurality of wall brackets fixed to the joints of the transverse steel studs and the longitudinal steel studs; A center bracket fixed to the center of the frame part and having a center hole cylinder in an inner space for receiving oil from a hydraulic jack provided on a lower transverse steel stud;
It is installed between the central bracket and the wall bracket, the steel wire member and the steel wire member is inserted into the through-hole in the center consisting of a block member stacked in order to absorb the seismic energy; characterized in that it comprises a.

Here, the center bracket is a center hole cylinder provided in an empty space inside the center; A plurality of through holes provided on four sides of the central bracket and forming a path of the wire member so that the wire member of the seismic brake is connected to the center hole cylinder; An elastic member provided on a surface contacting the block member of the seismic brake to support a compressive force, the center hole cylinder being fixed to an empty space formed inside the bracket body of the central bracket, and fixed to the plunger of the center hole cylinder. The steel wire member is inserted into and fixed to the formed center hole, and hydraulic pressure is supplied to the center hole cylinder to move the steel wire member to be tensioned, and the elastic member is connected to the block member by the steel wire member tensioned by the center hole cylinder. It is good to support the compressive force applied.

In addition, the block member is a plurality of protrusions formed on one side and a plurality of insertion portions provided on the opposite surface of the protrusion is fitted to each other, it is preferable that the steel wire member passes through the through-hole formed in the center.

In addition, the block member and the steel wire member is preferably finished with epoxy.

According to another embodiment of the present invention, a method of constructing a seismic wall using a block and steel wire may include installing a transverse steel stud and a longitudinal steel stud constituting a frame portion of the seismic wall (S110); Puncturing the anchor hole in the frame part and removing foreign matters at the anchor hole puncturing portion (S120); Fixing the wall bracket for supporting the earthquake-resistant brake to the anchor hole with an anchor bolt and an epoxy (S130); Fixing a central bracket to a center portion of the frame part (S140); Fixing the wire member to one side of the central bracket and inserting the wire member into the through holes of the plurality of block members to stack the block members, and then fixing one end of the wire member to the wall bracket (S150); ); Tensioning the steel wire member connected to the wall bracket using a center hole cylinder provided inside the center bracket (S160); And, between the steel wire member and the block member step of finishing with epoxy (S170); characterized in that it comprises a.

According to the seismic wall and construction method using the block and steel wire according to the present invention, the structure itself is increased against the seismic energy by increasing the stiffness of the building itself, and the compressive force and the tensile force are generated in the diagonal direction when the horizontal load is applied. Increases rigidity

In addition, the work is simple and the construction period can be shortened. By applying the block and steel wire simultaneously, the seismic force is increased because it can bear both tensile and compressive forces due to seismic energy.

1 is a front view of a steel structure having a brace according to the prior art,
2 is a front view showing a state in which the steel structure is displaced according to the horizontal load applied to the steel structure shown in FIG.
3 is a conceptual diagram of a seismic barrier using a block and a steel wire according to an embodiment of the present invention;
Figure 4 (a) is a perspective view specifically showing the center bracket of Figure 3,
4 (b) is a front sectional view of the portion A of FIG. 4 (a),
4 (c) is a plan sectional view of the portion A of FIG. 4 (a),
4 (d) is another plan view of the portion A of FIG. 4 (a),
Figure 5 (a) is a plan sectional view of the block member of Figure 3,
Figure 5 (b) is a front view of the block member of Figure 3,
Figure 6 (a) is a perspective view of the wall bracket of Figure 3,
Figure 6 (b) is a front view of the wall bracket of Figure 3,
Figure 6 (c) is a side view of the wall bracket of Figure 3, and
7 is a flowchart illustrating a method of constructing a seismic wall using blocks and steel wires according to an embodiment of the present invention.

The above objects, features and other advantages of the present invention will become more apparent by describing the preferred embodiments of the present invention in detail with reference to the accompanying drawings. Hereinafter, with reference to the accompanying drawings will be described in detail the seismic wall and construction method using the block and steel wire according to an embodiment of the present invention. For the purposes of this specification, the same reference numerals in the drawings represent the same components unless otherwise indicated.

3 is a conceptual view of a seismic wall using a block and steel wire according to an embodiment of the present invention, Figure 4 (a) is a perspective view showing the center bracket of Figure 3 in detail, Figure 4 (b) is a 4 (c) is a plan sectional view of the portion A of FIG. 4 (a), FIG. 4 (d) is another plan view of the portion A of FIG. 4 (a), FIG. a) is a sectional plan view of the block member of FIG. 3, FIG. 5 (b) is a front view of the block member of FIG. 3, FIG. 6 (a) is a perspective view of the wall bracket of FIG. 3, and FIG. 6 (b) is of FIG. A front view of the wall bracket, and FIG. 6 (c) is a side view of the wall bracket of FIG. 3.

3 to 6 (c), the seismic wall 100 according to the present invention is composed of a frame portion constituting the entire skeleton, the wall bracket 170, the central bracket 130, the seismic braking.

The frame portion is vertically arranged at equal intervals vertically between the upper transverse steel studs 120 and the lower transverse steel studs 125 and the upper and lower transverse steel studs 120, 125 which are arranged to partition the upper and lower layers. It is composed of a steel stud (110). The transverse steel studs 120 and 125 and the longitudinal steel studs 110 serve as skeletons for constructing the earthquake-proof wall 100 on the wall surface of the existing building.

The wall bracket 170 is fixed to the joint portions of the transverse steel studs 120 and 125 and the longitudinal steel studs 110 to connect the respective steel studs, and is provided at the corners (see FIG. 6). Since the wall bracket 170 is fixed between vertically connected steel studs, the shape of the body 172 may be formed of a right angle surface and a surface supporting a right angle surface. In the present invention, the wall bracket 170 having a body 172 having a triangular cross section is used. Looking at the method of fixing the wall bracket 170 to the frame portion, the anchor hole (not shown) in the transverse steel studs (120, 125) and the longitudinal steel studs 110, the opening of the wall bracket 170 ( 176) so as to correspond to the anchor hole, and then fixed by inserting a separate anchor bolt 175.

3 and 4 (a) to 4 (d), the center bracket 130 is fixed to the center portion of the frame portion, and from the hydraulic jack 165 provided on the lower transverse steel stud 125 A center hole cylinder 135 that operates by receiving oil is provided in an inner space. When fixing the central bracket 130, it is supported by using a separate abstract stand 160, the inner space of the central bracket 130 is formed. Here, the center hole cylinder 135 can be used in a single-acting type and a double-acting type. A center hole is provided in the plunger of the cylinder, and a rod (steel wire) is inserted into the center to fix the rod. ) Can be pushed or pulled by moving.

The central bracket 130 is provided on all sides of the center hole cylinder 135 provided in the empty space inside the center of the bracket body 134, the bracket body 134 of the central bracket 130, and as a block member 140. A plurality of through-holes 131 forming a path of the wire member 150 to be connected to the center hole cylinder 135 so that the steel wire member 150 of the earthquake-resistant brake is in contact with the block member 140 of the earthquake-resistant brake. It includes an elastic member 132 is provided to support the compression force.

The bracket body portion 134 may be represented by a combination of squares in the cross section, and the center hole cylinder 135 is provided in the center square space. The center hole cylinder 135 is operated to tension the wire member 150 while linearly moving in the empty space of the bracket body 134. In this case, the compressive force is generated in the block member 140 according to the tension of the steel wire member 150, the elastic member 132 functions to support the compressive force by the block member 140.
Specifically, the detachable center hole cylinder 135 is fixed to the empty space formed inside the bracket body 134 of the central bracket 130, and the fixing screw member 137 on one side of the center hole of the center hole cylinder 135. ) Is inserted and fixed.
Thereafter, the steel wire member 150 is inserted through the through hole 131 formed at one side of the center bracket 130, and one end of the steel wire member 150 is fixed to one side of the center hole cylinder 135. Screw (137) (part B of Fig. 4 (a)). After screwing, the wire member 150 is inserted into the through-hole 145 of the block member 140 and the block members 140 are sequentially stacked, and then the wire member is attached to the wall bracket 170 coupled to the frame portion. The other end of the 150 is fixed and the hydraulic jack 165 is used to provide the hydraulic pressure to the center hole cylinder 135 to move the fixing screw member 137 and the steel wire member 150 fixed thereto. . That is, the hydraulic screw is provided to the fixing screw member 137 and the steel wire member 150 connected to each other, and is pushed in a direction away from the center hole cylinder 135 to tension the steel wire member 150. Finally, epoxy is injected into and fixed to the inner gap between the tensioned wire member 150 and the block member 140.
Here, the hydraulic power is supplied to the center hole cylinder 135 to move the steel wire member 150 in the tensioning direction, and thus a compressive force is applied to the block member 140 covering the steel wire member 150.

Looking at Figure 4 (c) and 4 (d), it can be seen that the elastic member 132 may be installed in the corner portion of the bracket body portion 134, may be installed around the through hole 131. have.

Referring to Figures 3 and 5, the seismic brake is installed between the central bracket 130 and the wall bracket 170 and consists of a block member 140 and the steel wire member 150 to function to absorb seismic energy. Here, the block member 140 has a protrusion 144 formed on one surface of the block-shaped body, and an insertion portion 142 corresponding to the protrusion 144 is formed at an opposite side of the surface on which the protrusion 144 is formed. In addition, a separate through hole 145 is provided at the center of the block member 140 to allow the steel wire member 150 to pass therethrough.

Each block member 140 is continuous by fitting the protrusion 144 and the insertion part 142 and covers the steel wire member 150 provided between the central bracket 130 and the wall bracket 170. That is, by inserting the steel wire member 150 into the through-hole 145 of the continuous block member 140 by fitting the protrusion 144 and the insertion portion 142, it can be covered by the block member 140. After that, the steel wire member 150 is fixed between the central bracket 130 and the wall bracket 170.
Here, the wire member 150 bears a tensile force, and the block member 140 bears a compressive force.

Between the block member 140 and the steel wire member 150 is preferably finished with an epoxy member (see Fig. 5 (a) and 5 (b)).

7 is a flowchart illustrating a method of constructing a seismic wall using blocks and steel wires according to an embodiment of the present invention. Looking at the construction method of the seismic wall according to an embodiment of the present invention with reference to Figures 3 and 7, the transverse steel studs (120, 125) and the longitudinal steel studs 110 forming the frame portion of the seismic wall (100) Installing step (S110), puncture the anchor hole in the frame portion, removing the foreign material in the anchor hole punched portion (S120), anchor bolt 175 to the wall bracket 170 for supporting the seismic braking in the anchor hole And fixing with epoxy (S130), fixing the central bracket 130 to the central portion of the frame unit (S140), fixing the wire member 150 to one side of the central bracket 130 and a plurality of block members 140 Inserting the wire member 150 to the through-hole 145 of the) to stack the block member 140, and then fixing one end of the wire member 150 to the wall bracket 170 (S150), the center Steel wire part connected to the wall bracket 170 using the center hole cylinder 135 provided inside the bracket 130 Through the step (S160), liner member 150 and block member 140 which seal (150) includes the step (S170) to finish with an epoxy.

In the step S130, the top of the wall bracket 170 is fixed first to inject epoxy, and the anchor bolt is inserted into the bottom of the wall bracket 170 and fixed with epoxy, and then the anchor bolt is tightened. In addition, in step S140, the abstract bracket 160 is preliminarily fixed to the central bracket 130.

According to the seismic wall and construction method using the block and steel wire according to the present invention, the structure itself is increased against the seismic energy by increasing the stiffness of the building itself, and the compressive force and the tensile force are generated in the diagonal direction when the horizontal load is applied. Increases rigidity

In addition, the work is simple and the construction period can be shortened. By applying the block and steel wire simultaneously, the seismic force is increased because it can bear both tensile and compressive forces due to seismic energy.

While preferred embodiments of the present invention have been described above, the present invention is not limited to the above-described specific embodiments. That is, those skilled in the art to which the present invention pertains can make many changes and modifications to the present invention without departing from the spirit and scope of the appended claims, and all such appropriate changes and modifications are possible. Equivalents should be considered to be within the scope of the present invention.

100: seismic wall 110: longitudinal steel stud
120, 125: Horizontal steel stud 130: Center bracket
131: through hole 132: elastic member
135: center hole cylinder 140: block member
142: insertion portion 144: protrusion
145: through hole 150: steel wire member
160: abstract stand 165: hydraulic jack
170: wall bracket 172: bracket body
175: anchor bolt 176: opening

Claims (5)

Longitudinal steel disposed at equal intervals vertically between the upper transverse steel studs 120 and the lower transverse steel studs 125 and the upper and lower transverse steel studs 120, 125 which are arranged to partition the upper and lower layers. A frame portion composed of a stud 110;
A plurality of wall brackets 170 fixed to the joint portions of the transverse steel studs 120 and 125 and the longitudinal steel studs 110;
A central bracket 130 fixed to the center of the frame part and having a center hole cylinder 135 provided in an inner space to receive oil from a hydraulic jack 165 provided on a lower transverse steel stud 125;
Installed between the central bracket 130 and the wall bracket 170, the wire member 150 and the wire member 150 is inserted into the through hole 145 of the center consists of a block member 140 stacked in sequence The earthquake-resistant wall using a block and a steel wire, including; The method of claim 1, wherein the central bracket 130 is
A center hole cylinder 135 provided in an empty space inside the center;
A plurality of through holes 131 provided on four sides of the central bracket 130 and forming a path of the wire member 150 so that the wire member 150 of the seismic brake is connected to the center hole cylinder 135. );
And a resilient member 132 provided on a surface in contact with the block member 140 of the seismic brake to support a compressive force. The center hole cylinder 135 is formed in an empty space formed inside the bracket body of the central bracket 130. ) Is fixed and the steel wire member 150 is inserted into and fixed to the center hole formed in the plunger of the center hole cylinder 135 and the hydraulic pressure is supplied to the center hole cylinder 135 to tension the steel wire member 150. Moved,
The elastic member 132 is a seismic wall using a block and steel wire, characterized in that for supporting the compressive force applied to the block member 140 by the steel wire member 150 is tensioned by the center hole cylinder (135). The method of claim 1, wherein the block member 140 is
A plurality of protrusions 144 formed on one side and a plurality of insertion portions 142 provided on the opposite surface of the protrusion 144 is fitted to each other, the steel wire member 150 through the through hole 145 formed in the center A seismic wall using a block and steel wire, characterized in that the passage. The method of claim 3, wherein
Between the block member 140 and the steel wire member 150 is a seismic wall using a block and steel wire, characterized in that the finishing treatment with epoxy. Installing a transverse steel stud (120, 125) and a longitudinal steel stud (110) constituting the frame portion of the seismic wall (S110);
Puncturing the anchor hole in the frame part and removing foreign matters at the anchor hole puncturing portion (S120);
Fixing the wall bracket 170 for anchoring the seismic brake to the anchor hole with an anchor bolt and an epoxy (S130);
Fixing a central bracket 130 to a central portion of the frame part (S140);
After the steel wire member 150 is fixed to one side of the central bracket 130 and the steel wire member 150 is inserted into the through holes 145 of the plurality of block members 140 to stack the block member 140. Fixing one end portion of the wire member 150 to the wall bracket 170 (S150);
Tensioning the wire member 150 connected to the wall bracket 170 using a center hole cylinder 135 provided inside the center bracket 130 (S160); And,
Step between the steel wire member 150 and the block member 140 in the epoxy finishing step (S170); Construction method of the earthquake-proof wall using a block and a steel wire comprising a.

Images