Curtain wall having seismic isolation structure performance

Abstract

The present invention relates to a curtain wall having seismic isolation structure performance, the curtain wall including: vertical frames arranged at intervals; a plurality of horizontal frames connecting the vertical frames; and vibration prevention connection mechanisms provided between the plurality of vertical frames and horizontal frames to connect the vertical frames and the horizontal frames, wherein each of the vibration prevention connection mechanisms includes: a vibration prevention bracket body which is coupled to a vertical frame and has a hollow part formed therein; an inner elastic bracket which has one end connected to both sides of an inner wall of one end of the vibration prevention bracket body, is formed to extend to the outside of the other end of the vibration prevention bracket body, and has the other end provided as a fastening pipe; a buffer member disposed between an inner surface part of the vibration prevention bracket body and the inner elastic bracket; and a fastening element fastened to a horizontal frame through the fastening pipe.

Description

Curtain wall with seismic isolation structural performance

[0001] The present invention relates to a curtain wall having seismic isolation structural performance, and more specifically, to a curtain wall having seismic isolation structural performance capable of damping and absorbing external shocks or vibrations to prevent deformation and damage.

[0002] Generally, buildings are constructed to support vertical loads applied solely through a framework of columns and beams, as well as horizontal loads caused by wind or earthquakes, while exterior walls serve as a structure separating the interior from the exterior. Curtain walls installed on exterior walls function simply as curtains to partition the space.

[0003] Curtain walls function to block rain and wind from the outside, as well as to block noise and heat. Additionally, curtain walls prevent columns and beams from being exposed to the outside, providing an aesthetically pleasing exterior for the building. Furthermore, curtain walls are also being applied to system windows.

[0004] These curtain walls are broadly classified into stick and unitized types depending on the construction method. The stick type involves assembling individual components on-site and is primarily applied to lower floors. In contrast, the unitized type involves assembling components in a factory and then transporting them to the site for installation, and is mainly applied to high-rise buildings.

[0005] Meanwhile, while materials such as stainless steel, aluminum, and bronze are used for curtain walls, the use of glass has also increased significantly recently. Glass curtain walls not only transform the building's exterior image into a modern style but also have the advantage of improving natural lighting inside the building.

[0006] The exterior envelope of a curtain wall can be divided into a window section formed by window panels and a spandrel section formed by spandrel panels.

[0007] Spandrel sections are primarily formed on the outer surface of building structures, and are typically prepared and installed using spandrel panels with integrated insulation materials, such as insulated glass or insulation panels.

[0008] A spandrel refers to a beam that supports the wall horizontally between columns in steel or reinforced concrete structures.

[0009] Referring to FIG. 8, a conventional curtain wall is installed by fixing a bracket (30) to the side of a vertical bar installed vertically, and inserting a horizontal frame (10) into the spaced-apart space between the vertical frame (20). The ends of the horizontal frame (10) are respectively inserted into the bracket (30) installed on each vertical frame (20) arranged adjacently and assembled so that the horizontal frame (10) and the vertical frame (20) form a grid shape, and glass is installed by fitting it into the grid shape.

[0010] The bracket (30) connects the horizontal frame (10) and the vertical frame (20) and is provided with an elastic metal material to absorb vibrations and shocks while having vibration-resistant properties.

[0011] However, since these conventional curtain wall systems are joined by fixing the vertical and horizontal frames together with brackets using bolts, they had the disadvantage of being vulnerable to external shocks such as earthquakes and typhoons.

[0012] As such, conventional curtain walls are installed on the exterior walls of buildings along with buffer or sealing members; however, when external forces such as earthquakes occur on the curtain walls and non-load-bearing exterior walls, the impact or vibration is transmitted directly to the vertical and horizontal frames, making them highly susceptible to damage or breakage.

[0013] The present invention, aimed at solving the aforementioned problems, provides a curtain wall equipped with seismic isolation structural performance capable of maintaining the shape of the building's exterior wall by withstanding vibrations or shocks, by providing vibration prevention performance that makes it difficult to be damaged when external forces are applied to the exterior wall of a building corresponding to a curtain wall and a non-load-bearing wall.

[0014] The present invention may provide a curtain wall having seismic isolation structural performance comprising: vertical frames spaced apart; a plurality of horizontal frames connecting the vertical frames; and a vibration-damping connecting mechanism provided between the plurality of vertical frames and the horizontal frames to connect the vertical frames and the horizontal frames, wherein the vibration-damping connecting mechanism comprises: a vibration-damping bracket body formed hollow and coupled to the vertical frames; an internal elastic bracket, one end of which is connected to both sides of the inner wall of the one end of the vibration-damping bracket body and extends outwardly to the other end of the vibration-damping bracket body, with the other end provided as a fastening tube; a cushioning member disposed between the inner surface of the vibration-damping bracket body and the internal elastic bracket; and a fastening element that passes through the fastening tube and is fastened to the horizontal frames.

[0015] The above vibration-damping bracket body may include: a body fixing plate coupled to the vertical frame; a plurality of body horizontal plates extending horizontally from both upper and lower ends of the body fixing plate; and a plurality of inclined outer plates connected in correspondence with the plurality of body horizontal plates and forming a triangular hollow cross-section.

[0016] The internal elastic bracket may include: a plurality of inclined inner plates forming a triangular hollow cross section, which are arranged from the connection portion between the body fixing plate and the plurality of body horizontal plates within the vibration-preventing bracket body to the central portion; and an inner horizontal plate extending from the connection portion where the plurality of inclined inner plates are connected and connected to the fastening tube.

[0017] The above cushioning member may be provided with a gasket rubber material that is positioned on both the upper and lower sides of the plurality of inclined inner plates and the inner horizontal plate and supported on the inner wall of the vibration-preventing bracket body.

[0018] The above internal elastic brackets can be arranged in multiple numbers inside the vibration-damping bracket body.

[0019] The configuration of the present invention further includes an inner sleeve disposed on one or more of the vertical frame and the horizontal frame; and a resilient fixing part that elastically fixes the inner sleeve; wherein both sides of the inner sleeve may be formed in the shape of a concave plate.

[0020] Meanwhile, the above-mentioned cushioning member may be provided and arranged as an elastic material comprising one or more of rubber, urethane, silicone, springs, and Kagome structures.

[0021] The present invention, according to the above configuration, provides vibration prevention performance in a structure that is resistant to damage when an external force is applied to the exterior wall of a building corresponding to a curtain wall or a non-load-bearing wall, thereby enabling the building's exterior wall shape to be maintained by withstanding vibrations or impacts.

[0022] FIG. 1 is a conceptual diagram of a curtain wall having seismic isolation structural performance according to one embodiment of the present invention.

[0023] Figure 2 is a detailed view of the vibration-damping connecting mechanism of Figure 1.

[0024] FIG. 3 is a buffering state diagram of a curtain wall having seismic isolation structural performance according to one embodiment of the present invention.

[0025] FIG. 4 is a plan view of a curtain wall according to another embodiment of the present invention.

[0026] Figure 5 is a cross-sectional view of AA of Figure 4.

[0027] FIG. 6 is a plan view of a curtain wall according to another embodiment of the present invention.

[0028] FIG. 7 is a perspective view of a curtain wall according to another embodiment of the present invention.

[0029] Figure 8 is a three-dimensional view of a conventional curtain wall.

[0030] Hereinafter, various embodiments of the present invention will be described by specific embodiments illustrated in the attached drawings.

[0031] FIG. 1 is a conceptual diagram of a curtain wall having seismic isolation structural performance according to one embodiment of the present invention, FIG. 2 is a detailed diagram of a vibration-preventing connecting mechanism of FIG. 1, FIG. 3 is a buffering state diagram of a curtain wall having seismic isolation structural performance according to one embodiment of the present invention, FIG. 4 is a plan view of a curtain wall according to another embodiment of the present invention, and FIG. 5 is a cross-sectional view AA of FIG. 4.

[0032] As illustrated in FIGS. 1 to 5, a curtain wall (100) having seismic isolation structural performance according to an embodiment of the present invention comprises: vertical frames (110) arranged at intervals; a plurality of horizontal frames (120) connecting the vertical frames (110); and a vibration-preventing connecting mechanism (130) provided between the plurality of vertical frames (110) and horizontal frames (120) to connect the vertical frames (110) and the horizontal frames (120).

[0033] The above vibration prevention connecting mechanism (130) may include: a vibration prevention bracket body (131) formed hollow and coupled to a vertical frame (110); an internal elastic bracket (135) having one end connected to both sides of the inner wall of the one end of the vibration prevention bracket body (131) and extending outward from the other end of the vibration prevention bracket body (131), with the other end provided as a fastening tube (138); a cushioning member (140) disposed between the inner surface of the vibration prevention bracket body (131) and the internal elastic bracket (135); and a fastening element (139) that passes through the fastening tube (138) and is fastened to a horizontal frame (120).

[0034] A curtain wall (100) having seismic isolation structural performance according to the present embodiment can form a structure having seismic isolation structural performance in which the frame structure can be locally and flexibly deformed by shock or vibration by providing relative horizontal movement and rotation of the vertical frame (110) and the horizontal frame (120) in response to external shock or vibration displacement at the connection portion of the vertical frame (110) and the horizontal frame (120) by means of a vibration prevention connecting mechanism (130) connecting a plurality of vertical frames (110) and a horizontal frame (120).

[0035] The above vibration-preventing bracket body (131) may include: a body fixing plate (132) coupled to a vertical frame (110); a plurality of body horizontal plates (133) extending horizontally from both upper and lower ends of the body fixing plate (132); and a plurality of inclined outer plates (134) connected in correspondence with the plurality of body horizontal plates (133) and forming a triangular hollow cross section.

[0036] The vibration-damping bracket body (131) is formed such that the body fixing plate (132) is connected to the vertical frame (110) by a fastening screw (132-1), and the body horizontal plate (133) and the inclined outer plate (134) are inserted and arranged in the horizontal frame (120), and is elastically connected to the internal elastic bracket (135), and the fastening tube (138) of the internal elastic bracket (135) is connected to the horizontal frame (120) by being connected to the horizontal frame (120) by a fastening element (139).

[0037] Accordingly, the vibration-damping bracket body (131) can absorb displacement corresponding to shock or vibration acting on the vibration-damping bracket body (131) and the internal elastic bracket (135) by applying a cushioning member (140) between the two.

[0038] That is, the vibration-damping bracket body (131) has a fixed hollow shape to which the internal elastic bracket (135) is connected, but the cushioning member (140) applied inside supports the internal elastic bracket (135) elastically, and the internal elastic bracket (135) can move while compressing the cushioning member (140) in response to horizontal and rotational displacement.

[0039] The above internal elastic bracket (135) may include: a plurality of inclined inner plates (136) that form a triangular hollow cross section and are arranged in the central portion at the connection portion between the body fixing plate (132) and a plurality of body horizontal plates (133) within the vibration-preventing bracket body (131); and an internal horizontal plate (137) that extends from the connection portion where the plurality of inclined inner plates (136) are connected and is connected to a fastening tube (138).

[0040] This internal elastic bracket (135) is structured to be elastically movably supported on the vibration-damping bracket body (131) through a cushioning member (140).

[0041] That is, the plurality of inclined inner plates (136) have a shape similar to the plurality of outer inclined plates of the vibration-damping bracket body (131), and the inner horizontal plate (137) divides the inner space of the vibration-damping bracket body (131) vertically. Accordingly, the plurality of inner inclined plates and the inner horizontal plate (137) are elastically supported on the inner wall of the vibration-damping bracket body (131) by the cushioning member (140), thereby providing elastic relative horizontal and rotational movement of the vertical frame (110) in response to external impact or vibration displacement.

[0042] The above cushioning member (140) may be provided with a gasket rubber material that is positioned on both the upper and lower sides of a plurality of inclined inner plates (136) and inner horizontal plates (137) and supported on the inner wall portion of the vibration-preventing bracket body (131).

[0043] The above cushioning member (140) is provided with a gasket rubber material, thereby providing excellent heat resistance and vibration prevention performance, providing durability for long-term use inside the frame, and providing cushioning performance that allows sufficient relative movement between the vibration prevention bracket body (131) and the internal elastic bracket (135).

[0044] Meanwhile, the internal elastic bracket (135) can be arranged in multiple numbers inside the vibration-damping bracket body (131) to provide enhanced vibration-damping performance.

[0045] Additionally, the cushioning member (140) may be provided and arranged from an elastic material including one or more of rubber, urethane, silicone, springs, and a Kagome structure.

[0046] For example, a Kagome truss multilayer structure manufactured by weaving six spiral metal wires in three dimensions with minimal bending, or a spring, can be made by including an elastic material in any one of rubber, urethane, and silicone and provided as a cushioning member (140).

[0047] In addition, the cushioning member comprises 65 to 75 weight% of a highly crystalline polypropylene base resin; (B) 15 to 25 weight% of one or more rubber elastomers selected from the group consisting of ethylene-butene rubber (EBR), ethylene-octene rubber (EOR), and mixtures thereof; (C) 5 to 10 weight% of an inorganic filler; and (D) 1.5 to 3.5 weight% of a foaming agent, thereby improving the surface curvature of the cushioning member, providing an excellent appearance, and having excellent mechanical properties of high rigidity.

[0048] FIG. 6 is a plan view of a curtain wall according to another embodiment of the present invention, and FIG. 7 is a perspective view of a curtain wall according to another embodiment of the present invention.

[0049] Referring to FIGS. 6 and FIGS. 7, in this embodiment, an inner sleeve (150) may be placed in a vertical frame (110) and a horizontal frame (120).

[0050] An elastic fixing part (155) for elastically fixing an inner sleeve (150) to one or more of the vertical frame (110) and the horizontal frame (120) may be provided.

[0051] Both sides of the inner sleeve (150) may be formed into concave plates (151). Although the concave plates (151) are shown as having an angular shape, they are not limited thereto and may be provided with a concave curved surface or a rounded shape.

[0052] The inner sleeve (150) provides elastic bending of the concave plate (151) within the vertical frame (110) and horizontal frame (120) and can adequately respond to external compressive force, and the elastic fixing part (155) provides a vibration-damping structure capable of absorbing external shock or vibration displacement. That is, the inner sleeve (150) forms a structure within the vertical frame (110) that resists horizontal loads from external wind and responds to vertical loads such as earthquakes.

[0053] The above elastic fixing part (155) may include: a sleeve guide (156) provided on both sides of the inner sleeve (150) to connect the two sides of the inner sleeve (150) so as to be movably connected; a slide plate (158) provided on both sides of the inner sleeve (150) to be slidably connected to the sleeve guide (156) on the opposite side of the sleeve guide (156); a circular bolt rod (159) connecting the two sides of the inner sleeve (150) separated into two parts; a spring (159-1) supporting the circular bolt rod (159); and a fastening rod (160) that passes through the inner sleeve (150) in the vertical frame (110), allows movement of the two sides of the inner sleeve (150) separated within the vertical frame (110), and is fixed with a fastening bolt on the outer wall of the vertical frame (110).

[0054] The sleeve guide (156) and the slide plate (158) are arranged in two separate upper and lower sections within the frame to allow for flexible displacement response, thereby allowing internal movement of the inner sleeve (150), which is divided into two sections, so that the inner sleeve (150) absorbs external shocks or vibrations.

[0055] The circular bolt rod (160) is supported by a spring (159-1) in the central part of the inner sleeve (150) of a structure with both sides separated, thereby elastically relieving shock or vibration applied to the inner sleeve (150).

[0056] The connecting rod (160) stably fixes the inner sleeve (150), which has a structure with both sides separated, to the vertical frame (110) and allows movement within the vertical frame (110) by the length of the slide connection section between the sleeve guide (156) of the inner sleeve (150) and the slide plate (158).

[0057] In the above-described embodiment, the vibration-damping bracket body (131) is connected to the vertical frame (110) and the internal elastic bracket (135) is connected to the horizontal frame (120) by a fastening element; however, the positions of the vibration-damping bracket body (131) and the internal elastic bracket (135) can be reversed and applied.

[0058] Additionally, the vertical frame (110) and the horizontal frame (120) are not limited to a vertical and horizontal arrangement, and can be arranged in a structure where the vertical and horizontal arrangements are reversed.

[0059] Additionally, the inner sleeve (150) is preferably configured only with a vertical frame as described above, but is not limited thereto and may also be placed in a horizontal frame to prevent vibration depending on structural requirements.

[0060] In the above embodiment, the amount of displacement due to external force can be effectively responded to through a bracket connecting the vertical frame (110) and the horizontal frame (120).

[0061] In the case of a standard structure, a 'U' bracket is used to fix the existing vertical frame (110) and horizontal frame (120). When left-right displacement occurs, such as during an earthquake, two bolts of this bracket break, and the 'U' bracket may come loose.

[0062] In this embodiment, to complete the structure that the 'U' bracket can withstand, a hook-shaped internal elastic bracket (135) is applied inside the vibration-preventing bracket body (131) so that the reaction force, which was previously handled solely by the pulling force, can be converted into a reaction force by sharing the moment. Accordingly, when displacement occurs due to an external force, the displacement can be responded to by a configuration in which the diagonal deformation is responded to by rotational force by connecting one bolt to the circular fastening tube (138), and the displacement is responded to by a 'S'-shaped displacement response profile that corresponds to the length laterally.

[0063] In addition, in this embodiment, the amount of displacement through the inner sleeve (150) composed of soft layers can be effectively accommodated.

[0064] In a structure where existing vertical and horizontal frames are connected, even if the displacement is accommodated, in the case of soft layers, the connection is made using a connecting member called a sleeve due to the limitations of aluminum extrusion.

[0065] Due to the structural characteristics of continuous beams, these sleeves are secured at only one point, either at the top or bottom, while the remaining bottom section is left unsecured to reduce deflection. However, if lateral displacement occurs at that single section, shear failure frequently occurs through 'S'-shaped fractures.

[0066] In this embodiment, the lower portion is configured in a pocket shape within the profiles of the vertical frame (110) and the horizontal frame (120), thereby performing the role of an internal sleeve (150) and allowing the bolt with a spring fitted to the circular bolt rod (157) to respond to the amount of displacement, and also allowing the circular bolt rod (157) to respond even when displacement occurs only at the upper or lower part, and can perform the role of responding to an 'S'-shaped breakage.

[0067] The vibration-damping connecting mechanism (130), composed of a vibration-damping bracket body (131) and an internal elastic bracket (135), and the internal sleeve (150), which provide a displacement-responding structure according to the present embodiment, respond to stress in response to left-right deformation such as external impact on the outer wall of a non-load-bearing structure such as a curtain wall, and provide a recovery force that allows it to return to its original shape.

[0068] In addition, this embodiment can be applied not only to curtain walls but also to support pipes installed on the exterior walls of buildings, such as panels.

[0069] In addition, in this embodiment, the damper rubber, which is a cushioning member provided as a gasket material to serve as a seismic isolation material, can be changed or replaced with an elastic object such as a spring, and thus can be replaced with another elastic body capable of performing a similar or identical function.

[0070] The present invention, as described above, provides a structure that corresponds to the amount of displacement through a single bolt (conventional general installation methods use two bolts) a hook-type bracket, a displacement-responding profile in the shape of an 'ㅅ' (an example structure), a damper rubber, and a hook-type bracket at a position connected to a vertical frame and a horizontal frame to form a seismic isolation structure against seismic loads corresponding to left-right displacement on the elevation of a curtain wall and a non-load-bearing wall.

[0071] In accordance with the present invention, in the case of a building composed of multiple floors (two or more floors), a window bar is connected through an inner sleeve. When lateral displacement occurs equally on the floors, significant deformation occurs in the inner sleeve section. However, by providing a seismic isolation structure against lateral displacement (lateral force) while responding to positive and negative pressures through a through-type bolt, an aluminum profile, and a rubber damper in that section, the outer wall of the curtain wall can be preserved.

[0072] As such, the present invention provides the advantage of preserving the outer wall of a curtain wall through a seismic isolation structure that goes beyond a simple vibration prevention structure.

[0073] For reference, seismic isolation is a structure that uses laminated rubber or sliding bearings in parts such as the foundation of a building to prevent external vibrations from being transmitted to the superstructure.

[0074] Specific structural or functional descriptions regarding embodiments according to the concept of the present invention disclosed in the foregoing specification are merely illustrative for the purpose of explaining embodiments according to the concept of the present invention, and embodiments according to the concept of the present invention may be implemented in various forms and should not be interpreted as being limited to the embodiments described in this specification.

Claims

1. Vertical frames spaced apart; A plurality of horizontal frames connecting the vertical frames above; and A vibration-damping connecting mechanism provided between the plurality of vertical frames and the horizontal frames to connect the vertical frame and the horizontal frame; comprising, The above vibration prevention connecting mechanism is, A vibration-damping bracket body that is coupled to the vertical frame and is hollowly formed; An internal elastic bracket, wherein one end is connected to both sides of the inner wall of the one end of the vibration-damping bracket body and extends outwardly to the other end of the vibration-damping bracket body, with the other end provided as a fastening tube; A cushioning member disposed between the inner surface of the vibration-damping bracket body and the internal elastic bracket; and A curtain wall having seismic isolation structural performance comprising: a fastening element that passes through the fastening tube and is fastened to the horizontal frame.

2. In Paragraph 1, The above vibration-damping bracket body is A body fixing plate coupled to the vertical frame above; A plurality of body horizontal plates extending horizontally from both upper and lower ends of the body fixing plate; and A curtain wall having seismic isolation structural performance comprising: a plurality of inclined outer plates connected in correspondence with the plurality of body horizontal plates and forming a triangular hollow cross-section.

3. In Paragraph 2, The above internal elastic bracket is A plurality of inclined inner plates arranged from the connection portion between the body fixing plate and the plurality of body horizontal plates within the vibration-damping bracket body to the central portion, forming a triangular hollow cross-section; and A curtain wall having seismic isolation structural performance comprising: an inner horizontal plate extending from a connection portion where the plurality of inclined inner plates are connected and connected to the fastening pipe.

4. In Paragraph 3, A curtain wall having seismic isolation structural performance, characterized in that the above-described cushioning member is provided with a gasket rubber material that is arranged on both the upper and lower sides of the plurality of inclined inner plates and the inner horizontal plate and supported on the inner wall of the vibration-preventing bracket body.

5. In Paragraph 1, A curtain wall having seismic isolation structural performance, characterized in that the above internal elastic brackets are arranged in multiple numbers inside the vibration-damping bracket body.

6. In Paragraph 1, An inner sleeve disposed on one or more of the vertical frame and the horizontal frame; and Further comprising an elastic fixing part that elastically fixes the inner sleeve; and A curtain wall having seismic isolation structural performance, characterized in that both sides of the inner sleeve are formed in a concave plate shape.

7. In Paragraph 1, A curtain wall having seismic isolation structural performance, characterized in that the above-mentioned cushioning member is provided and arranged from an elastic material comprising one or more of rubber, urethane, silicone, spring, and Kagome structure.

8. In Paragraph 1, The above-mentioned cushioning member comprises 65 to 75 weight% of a highly crystalline polypropylene base resin; (B) 15 to 25 weight% of one or more rubber elastomers selected from the group consisting of ethylene-butene rubber (EBR), ethylene-octene rubber (EOR), and mixtures thereof; (C) 5 to 10 weight% of an inorganic filler; and (D) 1.5 to 3.5 weight% of a foaming agent, and is characterized by having excellent mechanical properties of high rigidity and improved surface curvature of the cushioning member.

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