KR102327175B1 - Light steel structure with seismic function - Google Patents

Abstract

The present invention relates to a lightweight steel frame structure with a seismic function, and more specifically, to a lightweight steel frame structure with a seismic function, wherein vibration caused by earthquakes can be absorbed. The lightweight steel frame structure with a seismic function according to the present invention comprises: a steel frame column extending in a vertical direction; a steel frame beam including a pair of beam flanges, which extend in a direction intersecting with the steel frame column and are arranged in a vertical direction with a gap therebetween, and a beam web for connecting the beam flanges and having a bracket coupling hole formed therethrough; a bracket including a column combination part combined with one side part of the steel frame column, and a beam combination part extending from one side of the column combination part away from the column combination part, formed in the shape of a plate to be in surface contact with the beam web and having a web coupling hole formed therethrough; and a steel frame beam coupling member for coupling the beam web to the beam combination part by penetrating and being combined with the bracket coupling hole and the web coupling hole to couple the beam combination part and the beam web to each other using a bolt. The bracket coupling hole extends long in the lengthwise direction of the beam web to guide the direction of absorbing a shock caused by the vibration of the steel frame column.

Description

Light steel structure with seismic function

The present invention relates to a lightweight steel structure having an earthquake-resistant function, and more particularly, to a lightweight steel structure having an earthquake-resistant function capable of buffering vibration caused by an earthquake.

In general, a steel structure refers to a building structure in which steel materials such as section steel, steel plate, and flat steel are used and joined by rivets, bolts, or welding.

The steel structure consists of steel columns erected at regular intervals and a number of steel beams installed between the steel columns to connect the steel columns. At this time, the steel column and the steel beam are joined by bolts or welding, and the joint structure of the steel column and the steel beam is an important factor affecting the stability of the steel structure.

Therefore, there is a risk that the steel structure may collapse if the steel column or steel beam is damaged due to an external force applied to the steel column or steel beam by an earthquake.

In addition, in the joint structures of such a steel structure, when an earthquake occurs at the place where the steel structure is installed or when construction is carried out nearby, the vibration transmitted from the ground is transmitted to the steel structure. If a large vibration occurs for a long time, there is a problem that the welding part or bolt connecting the steel column and the steel frame is damaged.

In recent years, the demand for lightweight steel structures made of lightweight steel frames manufactured through cold working in order to quickly erect warehouses or shelters on site is increasing. Lightweight steel structure has the advantage of being easy to transport and install because the weight of the steel column and steel beam is light, but the vibration damper or vibration control device installed in the existing steel structure has a problem that its application is limited due to its heavy weight.

In order to solve this problem, Korean Patent Laid-Open Publication No. 10-2010-0002013 discloses a vibration-proof lightweight PC beam bonding structure capable of attenuating interlayer noise or vibration by filling the hollow part of the PC beam with a fluidized solid.

In addition, Korean Patent Registration No. 10-0516332 discloses a steel structure having a damper joint in which a damper joint is installed between a column and a beam so that the damper joint can absorb the lateral load applied to the beam.

The joint structure of this lightweight steel structure attenuates the vibration transmitted from the steel column and can prevent the Cheolgolbo from being damaged due to the vibration. The downside is that it cannot be prevented.

Republic of Korea Patent Publication No. 10-2010-0002013 : Anti-vibration lightweight PC beam joint structure Republic of Korea Patent No. 10-0516332 : Steel structure with damper joint

An object of the present invention is to improve the above problems, and to provide a lightweight steel structure having an earthquake-resistant function capable of buffering vibration transmitted from a steel column by an earthquake.

Another object of the present invention is to provide a lightweight steel structure having an earthquake-resistant function that can prevent the fastening member for mutually fastening the steel column and the steel frame from being damaged due to the shear force generated by the vibration of the steel column.

In order to solve the above technical problem, a lightweight steel structure having an earthquake-resistant function according to the present invention includes: a steel frame extending in a vertical direction; a pair of beam flanges extending along a direction intersecting with the steel column and disposed to be spaced apart along the vertical direction; A column coupling part coupled to one side of the steel column, and a beam coupling part extending in a direction away from the pillar coupling part from one side of the pillar coupling part and formed in a plate shape to face the beam web and having a web coupling hole formed therethrough bracket; and a cheolgolbo fastening member that is through-coupled to the bracket fastening hole and the web fastening hole so that the beam coupling part and the beam web are mutually bolted to fasten the beam web to the beam coupling part; and, the bracket fastening hole is the It extends long in the longitudinal direction of the beam web so that the buffering direction by the vibration of the steel column is guided.

In addition, the beam web includes a beam web body portion connecting one surface facing each other of the beam flanges, and a buffer portion extending from one side adjacent to the steel column of the beam web body portion to protrude with respect to the flange toward the steel column. Including, the buffer part is formed with at least one buffer hole penetrated along the width direction of the beam flange so that the length is stretched and contracted as the steel column vibrates to cushion the vibration.

According to one aspect of the present invention, the plurality of buffer holes are provided alternately with at least one first buffer hole formed to be open at the top, and the first buffer hole formed to be open at the bottom and along the extension direction of the buffer unit, and the It consists of at least one second buffer hole extending to a length overlapping the first buffer hole along the longitudinal direction of the buffer part.

According to another aspect of the present invention, the buffer hole has a width that is elongated along the width direction of the buffer part and narrows as both ends of the extension direction progress in a direction away from each other, and a plurality of the buffer holes along the length direction of the buffer part is formed, and the buffer portion is formed to have a narrower width as it progresses, and is narrowly drawn in from both sides in the width direction in the region between the buffer holes to induce the buffer portion to buckle in the longitudinal direction. is formed

According to another aspect of the present invention, the buffer hole is formed to have a narrower width along the width direction of the buffer part, and a plurality of the buffer holes are formed to form a plurality of rows along the longitudinal direction of the buffer part, and as the buffer part progresses It is formed to have a narrower width along the side, and is narrowly drawn in from both sides in the width direction in the region between the rows formed by the buffer holes, and a buckling induction groove is formed to induce the buffer part to buckle along the longitudinal direction.

In addition, one side is fixed to the cheolgol column from the lower side of the cheolgolbo and the other side is fastened with the beam flange to further include a support for supporting the cheolgolbo auxiliary, and the beam flange is a support fastening member for fastening the support. A support fastening hole extending long in the longitudinal direction is formed so as to be penetrated so that the beam flange can be moved relative to the support.

In addition, the beam web is formed with a through plastic hinge guide hole to induce buckling step by step along the longitudinal direction by an external force, and the plastic hinge guide hole is penetrated along the thickness direction of the beam web in the longitudinal direction of the beam web. It consists of a through part extending long along Accordingly, the other pair of retracted in a direction away from the upper and lower positions spaced apart from the steel column in the direction away from the steel column than the pair of plastic hinge forming parts introduced in a direction away from each other from the upper and lower sides of one side adjacent to the steel column. The retracted depth of the plastic hinge forming parts is formed to a greater depth.

On the other hand, the beam coupling part proceeds in a direction from one side of the column coupling part toward one side of the beam web and protrudes in a direction away from the steel column and expandable and contractible along the protrusion direction, and the buffer spring It extends from the extension direction end of the part and includes a beam coupling piece having the web fastening hole, and the buffer spring part is spaced apart from the beam web from the extension direction end of the one side or the other buffer spring part of the column coupling part and is spaced apart from the beam web and A first elastic piece extending in a parallel direction; a second elastic piece extending in parallel with the first elastic piece in a direction closer to the steel column from the second elastic piece being formed to have a shorter length than the length of the first elastic piece; It extends bent in a direction toward one side of the web and includes a second connection part to which the first elastic piece or the prosthetic coupling piece of the other buffer spring part is connected to the end of the extension direction side, at least one of the buffer spring part A first connection is inserted between the beam flanges.

In the lightweight steel structure having an earthquake-resistant function of the present invention, when an earthquake occurs, the buffer direction by the vibration of the steel frame is guided along the extension direction of the bracket fastening hole. By buffering, it has the advantage of preventing the bracket connecting the cheolgolbo and the steel column from being damaged.

In addition, in the lightweight steel structure having a seismic function of the present invention, the Cheolgolbo fastening member for fastening the steel column and the Cheolgolbo can flow along the extension direction of the bracket fastening hole, so that the shear force acts on the Cheolgolbo fastening member due to the vibration of the steel frame. has the advantage of preventing

1 is a front view of a lightweight steel structure having an earthquake-resistant function according to a first embodiment of the present invention;
Figure 2 is an exploded perspective view for explaining the connection structure of the steel column and the steel beam of Figure 1,
Figure 3 is a side view for explaining the effect of the buffer in the state in which the steel column of Figure 2 vibrates;
4 is a side view showing a buffer part of a lightweight steel structure having an earthquake-resistant function according to a second embodiment of the present invention;
5 is a side view showing a buffer part of a lightweight steel structure having an earthquake-resistant function according to a third embodiment of the present invention;
6 is a plan view for explaining a bracket of a lightweight steel structure having an earthquake-resistant function according to a fourth embodiment of the present invention;
7 is a side view for explaining a beam web of a lightweight steel structure having an earthquake-resistant function according to a fifth embodiment of the present invention.

Hereinafter, with reference to the accompanying drawings, a light-weight steel structure having an earthquake-resistant function according to the present invention will be described in detail.

1 to 3 show a lightweight steel structure 1 having an earthquake-resistant function according to a first embodiment of the present invention. Referring to the drawings, the lightweight steel structure (1) having a seismic resistance function according to the first embodiment of the present invention is installed to be supported by a vertical steel column (10) and a steel column (10), a steel frame (20). ), and the bracket 30 and the support 40 installed to support the cheolgolbo 20 against the cheolgol column 10, and the cheolgolbo fastening member 28 for bolting the bracket 30 and the cheolgolbo 20 to each other ) is included.

The steel column 10 is an H-beam having a pair of column flanges 11 extending in the vertical direction, and a column web 12 connecting the column flanges 11 is applied. The steel column 10 is installed so that the column flange 11 faces the column flange 11 of the other steel column 10 adjacent to each other. The steel column 10 is fixedly installed so that the lower end is supported by the ground or other structures.

Cheolgolbo 20 is an H-beam having a pair of beam flanges 21 and a beam web 22 connecting the beam flanges 21 that extend along the direction crossing the extension direction of the steel column 10. applies. Cheolgolbo 20 is installed to connect between the steel pillars (10). Cheolgolbo 20 is installed so that both ends in the longitudinal direction are supported by a bracket 30 to be described later installed in the steel column (10).

The beam web 22 is a beam web body portion 23 connecting one surface facing each other to the beam flanges 21, and a steel frame column 10 from one side adjacent to the steel column 10 of the beam web body portion 23. It includes a buffer portion 24 extending to protrude with respect to the beam flange 21 toward the. A bracket fastening hole (23a) is formed through the beam web body (23). The bracket fastening hole 23a extends long along the longitudinal direction of the beam web body part 23 .

Bracket 30 is a column coupling part 31 coupled to a steel column, and a beam coupling part extending in a direction away from the pillar coupling part 31 from one side of the pillar coupling part 31 and coupled to the beam web 20 . (35) is provided. The column coupling part 31 and the beam coupling part 35 are formed in a plate shape extending in a mutually intersecting direction.

The auxiliary coupling part 35 is formed in a plate shape having a width corresponding to the interval between the second flanges 21 . In the first embodiment of the present invention, the auxiliary coupling part 35 and the column coupling part 31 are formed in a plate shape having the same width.

The column coupling part 31 has a column fastening hole 32 penetrating in the thickness direction so that it can be bolted with the steel column 10 is formed. A plurality of pillar fastening holes 32 are formed to be spaced apart from each other in the vertical direction. The beam coupling part 35 has a beam coupling hole 36 that penetrates in the thickness direction so that it can be bolted with the cheolgolbo 20 is formed.

Among the column flanges 11 of the steel column 10 , the bracket fixing hole 11a is formed through any one of the column flanges 11 adjacent to the Cheolgolbo 20 .

The bracket 30 has a bracket fixing bolt 38 in the bracket fixing hole 11a and the pillar fixing hole 32 in a state where the pillar coupling part 31 is in contact with the pillar flange 11 in which the bracket fixing hole 11a is formed. By being inserted, it is fixedly installed on the steel column (10). In the first embodiment of the present invention, a pair of brackets 30 are installed on both sides of the beam web 22, respectively. Alternatively, a configuration in which only one bracket 30 is installed may be applied.

The bracket 30 includes the beam coupling hole 36 of the beam coupling part 35 and the beam web body part 23 of the beam web 22 in a state in which the beam coupling part 35 is in contact with the beam web 22 to face it. The beam web 22 and the bracket 30 are mutually fastened by inserting the beam fastening member 28 through the bracket fastening hole 23a of the. Through this, the cheolgolbo 20 is installed to be supported by the bracket 30 .

The buffer part 24 is formed in a plate shape having the same shape as the cross-sectional shape of the beam web body part 23 . The buffer part 24 is extended to come into contact with one surface of the steel column 10, and as the steel column vibrates, the length is stretched and contracted so that at least one buffer hole penetrated along the thickness direction to cushion the vibration is formed. Unlike the first embodiment of the present invention, the buffer unit 24 may be formed to have a shorter length so as not to come into contact with one surface of the steel column 10 .

The buffer holes are composed of a first buffer hole (25a) and a second buffer hole (25b). The first and second buffer holes 25a and 25b are formed to be alternately arranged along the extending direction of the buffer part 24 . The first buffer hole 25a is formed in the shape of a long hole elongated along the width direction of the buffer part 24 . The first buffer hole (25a) is formed to extend upward to reach the upper end of the buffer part (24) so that the upper side is opened. The second buffer hole (25b) is formed in the shape of a long hole elongated along the width direction of the buffer part (24). The second buffer hole 25b extends downward to reach the lower end of the buffer part 24 and is formed to be open at the bottom. In the first embodiment of the present invention, the buffer part 24 has two first buffer holes 25a formed along the extension direction, and one second buffer hole (25a) is positioned between the first buffer holes 25a. 25b) is applied. Alternatively, the first and second buffer holes 25a and 25b may be formed one by one or more. The second buffer hole 25b is formed to have a length overlapping with the first buffer hole 25a along the longitudinal direction of the buffer part 24 .

As described above, in the buffer part 24 in which the first and second buffer holes 25a and 25b are formed, the steel column 10 vibrates and the steel column 10 reciprocates along the longitudinal direction of the buffer part 24 . When this is done, the buffer part 24 expands and contracts in a direction in which the widths of the first and second buffer holes 25a and 25b increase and decreases together, and prevents vibration from being transmitted to the beam web body part 23, thereby preventing the bracket 30 from being transmitted. It has the advantage of preventing this breakage phenomenon.

In addition, even if any one of the steel pillars 20 is deformed or collapsed and the height of one side of the steel frame 20 is changed in the longitudinal direction, the buffer unit 24 is the first and second buffer The balls (25a, 25b) are induced to be plastically deformed into shapes having different widths and have the advantage of preventing the cheolgolbo 20 from being damaged.

Such a buffer unit 24 is provided to buffer the vibration transmitted to the cheolgolbo 20 installed between the cheolgolbo (10), and may be omitted differently from the first embodiment of the present invention.

The support 40 is fixed to the steel column 10 from the lower side of the cheolgolbo 20 on one side, and the other side is fastened with the beam flange 21 .

The support 40 is formed in a plate shape extending to a predetermined length. The support 40 is formed to be bent so that both ends of the extension direction cross each other.

The support 40 is a plate-shaped support fixing part 41 parallel to the column flange 12 of the steel column 10 on one side, and a support connection part 43 extending from the upper side of the support fixing part 41, and, It includes a support support portion 45 formed in a plate shape parallel to the beam flange 22 from the end portion of the support connection portion 43 .

The support fixing part 41 and the support supporting part 45 are inserted through the support fastening member 48 so that the support fixing part 41 is fastened with the column flange 11, and the support supporting part 45 is the beam flange ( 21) and at least one bolt coupling hole 47 is formed through each.

In addition, the pillar flange 11 is formed through a plurality of support fixing holes 11c so that the support fastening member 48 can be inserted therethrough at a position corresponding to the bolt coupling hole 47 of the support support portion 45 .

The support 40 is arranged so that the bolt coupling hole 47 of the support fixing part 41 is coaxial with the support fixing hole 11c of the column flange 11, the support fastening member 48 is the support high It is fixed to one side of the steel column 10 by being inserted through the bolt coupling hole 47 of the top 41 and the support fixing hole 11c of the column flange 11 .

And, the support fastening hole 21a is formed in the beam flange 21 located below the cheolgolbo 20 so that it can be bolted with the support support part 45 of the support 40 . The support fastening hole 21a is formed to extend long in the longitudinal direction of the beam flange 21 .

The support 40 is a support fastening member 48 in a state in which the bolt coupling hole 47 of the support supporting part 45 is arranged to be in contact with the support fastening hole 21a of the beam flange 21, and the support fastening member 48 is the support fastening part (45) is installed to support the cheolgolbo 20 by being inserted through the bolt coupling hole 47 and the support fastening hole 21a of the beam flange 21.

Such a support 40 not only reinforces the support force for the cheolgolbo 20, but also guides the buffering direction of the vibration transmitted from the cheolgolbo 20 along the extension direction of the support fastening hole 21a, and to the cheolgolbo 20. It has the effect of buffering the transmitted vibration.

The support 40 as described above may be omitted as being provided to reinforce the supporting force for the cheolgolbo 20 .

As described above, in the lightweight steel structure having an earthquake-resistant function according to the first embodiment of the present invention, the buffer direction by the vibration of the steel column 10 is guided along the extension direction of the bracket fastening hole 23a, so that an earthquake occurs. Even if the vibration is transmitted to the cheolgolbo 20 through the cheolgolbo 10, and has the advantage of preventing the bracket 30 connecting the cheolgolbo 20 and the cheolgolbo 10 from being damaged.

In the lightweight steel structure having an earthquake-resistant function according to the first embodiment of the present invention, the cheolgolbo fastening member 28 for fastening the steel column and the cheolgolbo is movable along the extension direction of the bracket fastening hole 23a, so that the vibration of the steel column is possible. Due to the shear force acting on the cheolgolbo fastening member 28 and has the advantage of preventing the cheolgolbo fastening member 28 from being damaged.

In addition, the lightweight steel structure having an earthquake-resistant function according to the first embodiment of the present invention does not require a separate vibration-proof means such as a damper, a cushioning material, and an elastic member for damping vibration, so the structure is simple and easy to install. It has the advantage of reducing the total weight.

The buffer part 24 may be applied to a buffer hole formed in various ways. 4 shows a buffer part of a lightweight steel structure having an earthquake-resistant function according to a second embodiment of the present invention. In the second embodiment of the present invention, the configuration other than the buffer part and the buffer hole is the same as that of the first embodiment, and thus redundant description is omitted. Referring to the drawings, the buffer holes are made of third buffer holes (25c).

The third buffer hole 25c is formed in the shape of a long hole elongated along the width direction of the buffer part 24 . The third buffer hole 25c is formed to have a width that becomes narrower as both ends in the extension direction progress in a direction away from each other. A plurality of third buffer holes 25c are formed along the extending direction of the buffer part 24 .

And, the buffer part 24 is formed to have a width that is narrowed as the end of the extension direction proceeds in the direction toward the steel column (10). In the buffer part 24, buckling induction grooves 26 are formed in both sides of the buffer part 24 in the width direction in the region between the rows formed between the third buffer holes 25c. In the second embodiment of the present invention, two third buffer holes 25c are formed to be spaced apart from each other in the extending direction of the buffer part 24, and accordingly, the embodiment in which a pair of buckling guide grooves 26 is formed is applied. Unlike this, as three third buffer holes 25c are formed, two or more pairs of buckling guide grooves 26 may be formed. The buckling guide grooves 26 are formed to have a narrower width as they progress toward each other.

5 shows a buffer part of a lightweight steel structure having an earthquake-resistant function according to a third embodiment of the present invention. In the third embodiment of the present invention, the configuration other than the buffer part and the buffer hole is the same as that of the first embodiment, and thus redundant description is omitted. Referring to the drawings, the buffer holes are made of fourth buffer holes (25d).

The fourth buffer holes 25d are formed to have a narrower width along the width direction of the buffer part 24 . A plurality of fourth buffer holes 25d are formed to form a plurality of rows along the extension direction of the buffer part 24 while forming a plurality of columns along the width direction of the buffer part 24 . In this embodiment, the fourth buffer hole 25d forms two columns along the width direction of the buffer part 24, and four are formed in two rows along the extension direction of the buffer part 24.

And, the buffer part 24 is formed to have a width that is narrowed as the end of the extension direction proceeds in the direction toward the steel column (10). In the buffer part 24, buckling induction grooves 26 are formed in both sides in the width direction of the buffer part 24 in the region between the rows formed between the fourth buffer holes 25d. In this embodiment, the fourth buffer holes 25d are formed to form two rows along the extension direction of the buffer part 24, and accordingly, the embodiment in which a pair of buckling guide grooves 26 is formed is applied, and the fourth As the buffer holes 25d are formed to form three or more rows, two or more pairs of buckling guide grooves 26 may be formed. The buckling guide grooves 26 are formed to have a narrower width as they progress toward each other.

As described above, in the buffer part 24 in which the third and fourth buffer holes 25c and 25d are formed, the steel column 10 vibrates and the steel column 10 reciprocates along the longitudinal direction of the buffer part 24 . When this is done, the stress is concentrated at both ends of the buffer part 24 in the extension direction of the third or fourth buffer holes 25c and 25d, and the buffer part 24 is the third or fourth buffer hole 25c, 25d. The width is deformed to be narrow and has the advantage of buffering the vibration transmitted from the steel column (10).

In addition, the end of the buffer part 24 is formed to have a narrower width, and buckling induction grooves 26 are formed on both sides of the buffer part 24 in the width direction, so that the vibration transmitted from the steel column 10 is reduced. The impact caused by the shock is guided to the upper and lower portions of the third or fourth buffer holes 25c and 25d along the extending direction of the buffer part 24, so that the effect of making the buffer part 24 expand and contract more effectively. perform

6 shows a bracket 60 of a lightweight steel structure having an earthquake-resistant function according to a fourth embodiment of the present invention. In the fourth embodiment of the present invention, since the components other than the bracket 60 and the buffer unit 24' are the same as those of the first embodiment, redundant description will be omitted.

Referring to the drawings, the buffer part 24 is formed in a plate shape having the same shape as the cross-sectional shape of the beam web body part 23 . The buffer part 24' extends to protrude from the beam flange 21 toward the steel column 10. The buffer part 24' is applied to extend to a shorter length than the buffer part 24 of the first embodiment of the present invention so that the end of the extension direction is not on one side of the steel column 10. The buffer part 24' may be applied to the buffer part 24 of the first to third embodiments of the present invention.

The pillar coupling part 31' of the bracket 60 has the same configuration as the pillar coupling part 31 of the first embodiment of the present invention, but is formed in a plate shape extending with a shorter length.

The beam coupling portion 70 of the bracket 60 proceeds in a direction from one side of the column coupling portion 31 ′ toward one side of the beam web 21 , and protrudes in a direction away from the steel pillar 10 along the protrusion direction. It includes at least one stretchable buffer spring portion, and a prosthetic coupling piece 78 extending from the end of the buffer spring portion in the extension direction and having a web fastening hole 78a.

In the fourth embodiment of the present invention, the bracket 60 has a configuration in which two buffering springs are formed for each prosthetic coupling part 70, but unlike this, one or three or more buffering springs are provided for each prosthetic coupling part. A connected configuration may be applied.

In the fourth embodiment of the present invention, the buffer spring part includes a first cushioning spring part 71 extending from one side of the column coupling part 31' along the extending direction from one side of the pillar coupling part 31', and a first buffer It is divided into a second cushioning spring portion 73 extending from the end of the spring portion 71 in the extending direction.

The first cushioning spring part 71 is a first elastic piece 71a extending from one side of the column coupling part 31' to the steel column 10 and extending in parallel to the beam web 22, A first connecting portion 71b extending from the end of the first elastic piece 71a in the extension direction toward one side of the beam web 21 to be bent, and the end of the first connecting portion 71b in the extension direction. From the second elastic piece 71c formed in parallel with the first elastic piece 71a and extending along the direction closer to the steel column 10 from the end of the extension direction side of the second elastic piece 71c and a second connecting portion 71d extending to be bent in a direction toward one side of the beam web 21 and provided with a prosthetic coupling piece 78 at an end of the extension direction.

And, the second shock absorber spring part 73 has the same configuration as the first shock absorber spring part 71 . The second shock absorber spring part 73 is formed so that the first elastic piece 71a of the second shock absorber spring part 73 extends from the end of the second connection part 71d of the first shock absorber spring part 73 in the extension direction. Connected.

The prosthetic coupling piece 78 is formed to extend parallel to the beam web 21 from the end of the second connecting portion 71d of the second buffering spring portion 73 in the extending direction.

The first and second buffer spring portions (71, 73) and the first and second connection portions (71b, 71d) and the prosthetic coupling piece 78 have a width corresponding to the interval between the beam flanges 21 of the cheolgolbo 20 . It is formed in a plate shape with The second elastic piece 71c of the first and second cushioning spring portions 71 and 73 extends to a length shorter than the extension length of the first elastic piece 71a. The first elastic piece (71a) is extended from the column coupling portion (31') between the first elastic piece (71a) and the beam web 22, the second elastic piece (71c) and the first and second connection parts (71b), 71d) is formed at a position spaced apart from the beam web 22 so that it can be accommodated.

The first elastic piece 71a or the prosthetic coupling piece 78 of the other buffer spring part is connected to the end of the second connection part 71c in the extension direction. In the fourth embodiment of the present invention, the first elastic piece 71a of the second buffering spring part 71 is connected to the end of the second connection part 71c in the extension direction of the first buffering spring part 71, The prosthetic coupling piece 78 is connected to the end of the second connection part 71c in the extension direction of the second buffer spring part 73 . Unlike the fourth embodiment of the present invention, the prosthetic coupling unit 70 may have a configuration in which one or three or more buffer springs are connected.

In the bracket 60, the first connection portion 71c of at least one buffer spring is inserted between the beam flanges 21. In the fourth embodiment of the present invention, the second connection portion 71d of the second buffer spring portion 71 is inserted between the beam flanges 21 .

The bracket 60 of the fourth embodiment of the present invention configured as described above is the cheolgol pole 10 or cheolgolbo 20 by vibration transmitted through the cheolgol pole 10 or cheolgolbo 20 in the longitudinal direction or in the longitudinal direction and Even if the flow in the intersecting direction, the brackets 60 buffer the vibration, and the relative position of the steel column 10 or the cheolgolbo 20 is restored by the restoring force exerted by the brackets 60 .

6 shows a beam web of a lightweight steel structure having an earthquake-resistant function according to a fifth embodiment of the present invention. Since the lightweight steel structure having an earthquake-resistant function according to the fifth embodiment of the present invention has the same configuration as the first embodiment except for the beam web 22, a redundant description will be omitted.

Referring to the drawings, the plastic hinge guide hole 80 is formed so as to induce the beam web 22 to buckle stepwise along the longitudinal direction by an external force. The plastic hinge guide hole 80 is formed through the beam web body 23 of the beam web 22 along the thickness direction. In the fifth embodiment of the present invention, the plastic hinge guide hole 80 is formed in the beam web body 23 .

The plastic hinge guide hole 80 is penetrated along the thickness direction of the beam web 22, the through portion 81 extending long in the longitudinal direction of the beam web 22, and the through portion 81 from the inner circumferential surface of the It consists of a plurality of pairs of plastic hinge forming parts that are drawn in along the width direction of the beam web.

In the fifth embodiment of the present invention, the plastic hinge forming parts are formed in a lead-in along the width direction of the beam web 22 from the inner circumferential surface of the through part 81 . A plurality of plastic hinge forming parts are formed to be spaced apart from each other at predetermined intervals along the extending direction of the through part 81 .

A plurality of pairs of the plastic hinge forming parts are more than a pair of plastic hinge forming parts drawn in a direction away from each other from the upper and lower sides of one side adjacent to the steel column 10 along the extension direction of the through part 81 . The retracted depth of the other pair of plastic hinge forming parts introduced in a direction away from each other from upper and lower positions spaced apart from the pillar 10 is formed to a greater depth.

In the fifth embodiment of the present invention, the plastic hinge forming parts are divided into first, second, and third plastic hinge forming parts 82 , 83 , 84 . The first, second, and third plastic hinge forming portions 82 , 83 , and 84 are formed to have a narrower width as they progress in the retracting direction.

A pair of the first plastic hinge forming part 82 is formed so as to face each other in the upper and lower portions of the through portion 81 at one side adjacent to the steel column 20 in the extending direction of the through portion 81 .

The second plastic hinge forming portion 83 is the upper portion of the through portion 81 at a position spaced apart from the steel column 20 in the direction away from the first plastic hinge forming portion 82 with respect to the extending direction of the through portion 81 . A pair is formed so as to face each other in the lower part. The second plastic hinge forming part 83 is formed in a deeper depth than the first plastic hinge forming part 82 . The third plastic hinge forming portion 84 is the upper portion of the through portion 81 at a position spaced apart from the steel pillar 20 in the direction away from the second plastic hinge forming portion 83 in the extending direction of the through portion 81 . A pair is formed so as to face each other in the lower part. The third plastic hinge forming portion 84 is formed in a deeper depth than the second plastic hinge forming portion 83 . Alternatively, the third plastic hinge forming part 84 may be omitted.

As described above, the beam web 22 in which the plastic hinge guide hole 80 of the fifth embodiment of the present invention is formed has the first to third plastic hinge forming parts 82, 83, and 84 when excessive compressive force is applied in the longitudinal direction as described above. By inducing sequential buckling from the deep portion of the retracted depth, the shock applied to the bracket 30 is buffered, thereby exhibiting the effect of preventing the collapse of the cheolgolbo 20.

Although the present invention described above has been described with reference to an example shown in the drawings, this is merely exemplary, and it will be understood by those skilled in the art that various modifications and equivalent other embodiments are possible therefrom. will be. Accordingly, the scope of true technical protection of the present invention should be defined by the technical spirit of the appended claims.

1: Lightweight steel structure with seismic function
10: steel column 20: steel beam
30, 60: Bracket 40: Support

Claims (8)

a steel column extending along the vertical direction;
a pair of beam flanges extending along a direction intersecting with the steel column and disposed to be spaced apart along the vertical direction;
A column coupling part coupled to one side of the steel column, and a beam coupling part extending in a direction away from the pillar coupling part from one side of the pillar coupling part and formed in a plate shape to face the beam web and having a web coupling hole formed therethrough bracket;
and a cheolgolbo fastening member which is through-coupled to the bracket fastening hole and the web fastening hole so that the beam coupling part and the beam web are mutually bolted to fasten the beam web to the beam coupling part; and
The bracket fastening hole extends long in the longitudinal direction of the beam web so that the buffering direction by the vibration of the steel column is guided,
The beam web includes a beam body part connecting one surface facing each other of the beam flanges, and a buffer part extending from one side adjacent to the steel column of the beam web body part to protrude with respect to the flange toward the steel column, and ,
The shock absorber is a lightweight steel structure having a seismic function, characterized in that the length is expanded and contracted as the steel column vibrates, and at least one buffer hole penetrated along the width direction of the beam flange is formed to cushion the vibration.
delete The method of claim 1,
A plurality of the buffer holes are provided with at least one first buffer hole formed to be open at the top, and the first buffer hole formed to be open at the bottom and arranged alternately with the first buffer hole along the extension direction of the buffer part, and the first buffer hole along the length direction of the buffer part A lightweight steel structure having an earthquake-resistant function, characterized in that it consists of at least one second buffer hole extending to a length overlapping the first buffer hole. The method of claim 1,
The buffer holes extend long along the width direction of the buffer part and have a width that narrows as both ends of the extension direction move away from each other, and a plurality of buffer holes are formed along the length direction of the buffer part,
The buffer part is formed to have a width that becomes narrower as it progresses, and a buckling induction groove is formed that is narrowly drawn in from both sides in the width direction in the region between the buffer holes to induce the buffer part to buckle in the longitudinal direction. A lightweight steel structure with an earthquake-resistant function. The method of claim 1,
The buffer holes are formed to have a narrower width along the width direction of the buffer part, and a plurality of the buffer holes are formed to form a plurality of rows along the length direction of the buffer part,
The buffer portion is formed to have a narrower width as it progresses, and in the region between the rows formed by the buffer holes, a buckling induction groove is drawn in from both sides in the width direction to induce the buffer portion to buckle in the longitudinal direction. A lightweight steel structure having an earthquake-resistant function, characterized in that formed. The method of claim 1,
One side is fixed to the cheolgol column from the lower side of the cheolgolbo and the other side is fastened with the beam flange further comprising a support for supporting the cheolgolbo auxiliary,
The beam flange is formed through a support fastening member for fastening the support to pass therethrough, characterized in that a support fastening hole extending long in the longitudinal direction is formed to guide the beam flange to be movable relative to the support. A lightweight steel structure with seismic resistance. a steel column extending along the vertical direction;
a pair of beam flanges extending along a direction intersecting with the steel column and disposed to be spaced apart along the vertical direction;
A column coupling part coupled to one side of the steel column, and a beam coupling part extending in a direction away from the pillar coupling part from one side of the pillar coupling part and formed in a plate shape to face the beam web and having a web coupling hole formed therethrough bracket;
and a cheolgolbo fastening member which is through-coupled to the bracket fastening hole and the web fastening hole so that the beam coupling part and the beam web are mutually bolted to fasten the beam web to the beam coupling part; and
The bracket fastening hole extends long in the longitudinal direction of the beam web so that the buffering direction by the vibration of the steel column is guided,
The beam web is formed with a through plastic hinge guide hole to induce buckling step by step along the longitudinal direction by an external force,
The plastic hinge guide hole is penetrated along the thickness direction of the beam web, and a through-portion elongated along the longitudinal direction of the beam web, and a plurality of pairs of plastic hinges that are drawn in along the width direction of the beam web from the inner circumferential surface of the through-portion. It consists of forming parts,
A plurality of pairs of the plastic hinge forming parts are spaced apart from the steel column in a direction away from the pair of plastic hinge forming parts introduced in a direction away from each other from the upper and lower sides of one side adjacent to the steel column along the extension direction of the through part. A lightweight steel structure having an earthquake-resistant function, characterized in that the retracted depth of the other pair of plastic hinge forming parts drawn in in a direction away from each other from the upper and lower parts of the upper and lower positions is formed to a greater depth. a steel column extending along the vertical direction;
a pair of beam flanges extending along a direction intersecting with the steel column and disposed to be spaced apart along the vertical direction;
A column coupling part coupled to one side of the steel column, and a beam coupling part extending in a direction away from the pillar coupling part from one side of the pillar coupling part and formed in a plate shape to face the beam web and having a web coupling hole formed therethrough bracket;
and a cheolgolbo fastening member which is through-coupled to the bracket fastening hole and the web fastening hole so that the beam coupling part and the beam web are mutually bolted to fasten the beam web to the beam coupling part; and
The bracket fastening hole extends long in the longitudinal direction of the beam web so that the buffering direction by the vibration of the steel column is guided,
The beam coupling portion proceeds in a direction from one side of the column coupling portion toward one side of the beam web, protruding in a direction away from the steel column, and extending and contracting along the protruding direction at least one buffer spring portion, and the buffer spring portion extension and a prosthetic piece extending from an end in the direction side and having the web fastening hole formed therein;
The buffer spring part is spaced apart from the beam web from the end of the extension direction of one side or the other buffer spring part of the column coupling part and a first elastic piece extending in a direction parallel to the beam web, and the extension direction of the first elastic piece A first connecting portion extending to be bent in a direction toward one side of the beam web from the side end, and the first elastic piece extending in parallel with the first elastic piece in a direction closer to the steel column from the extending direction end of the first connecting portion Doedoe a second elastic piece formed to have a length shorter than the length of the first elastic piece; and a second elastic piece extending bent from an extension direction end of the second elastic piece in a direction toward one side of the beam web and the other at an extension direction end end A first elastic piece of the buffer spring portion or a second connecting portion to which the prosthetic coupling piece is connected,
The first connection part of the at least one buffer spring part is a lightweight steel structure having an earthquake-resistant function, characterized in that it is inserted between the beam flanges.

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