A curtain wall vibration elastic mitigation structure and its construction method

Abstract

This invention discloses a curtain wall vibration elastic mitigation structure and its construction method. Installed between the building structure and the vertical joists of the curtain wall, it belongs to the field of curtain wall structure technology. The structure includes a curtain wall connecting frame with embedded parts pre-installed in the building structure. A steel adapter extending laterally towards the vertical joists of the curtain wall is connected to the embedded parts. An elastic buffer is included, with its fixed end connected to the embedded parts and its telescopic end reciprocatingly connected to the vertical joists along the steel adapter. An overload limiting member is also included, with one end connected to the embedded parts and the other end extending towards the telescopic end of the elastic buffer, with a pre-existing gap between them. This overload limiting member abuts against the telescopic end of the elastic buffer during its lateral contraction. This invention's curtain wall vibration elastic mitigation structure adds an elastic buffer between the building structure and the vertical joists of the curtain wall, effectively mitigating wind-induced vibration and improving the overall vibration resistance of the curtain wall system.

Description

Technical Field

[0001] This invention belongs to the field of curtain wall technology, specifically relating to a curtain wall vibration elastic mitigation structure and its construction method. Background Technology

[0002] Vibrations generated by typhoons or sudden strong convective air currents on building curtain walls, especially high-rise building curtain wall systems, are often caused by the lack of vibration damping devices between the connectors and the main embedded parts of conventional curtain walls. This results in the load being directly transferred to the main structure when the curtain wall system is subjected to loads, leading to significant load impact on the curtain wall system. Under extreme wind speeds, the curtain wall system undergoes significant in-plane deformation, which can lead to surface layer breakage and plastic deformation of the curtain wall frame. Summary of the Invention

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide a curtain wall vibration elastic mitigation structure and its construction method.

[0004] To achieve the above objectives, the present invention is implemented using the following technical solution:

[0005] In a first aspect, the present invention provides a curtain wall vibration elastic damping structure, installed between the building body and the vertical keel of the curtain wall, comprising:

[0006] The curtain wall connecting frame is equipped with embedded parts that are pre-embedded in the main body of the building, and the embedded parts are connected to steel adapters that extend laterally toward the vertical keel of the curtain wall;

[0007] An elastic buffer member, wherein the fixed end of the elastic buffer member is connected to the embedded part, and the telescopic end of the elastic buffer member is connected to the vertical keel of the curtain wall in a reciprocating manner along the steel adapter.

[0008] An overload limiting component is provided, with one end connected to the embedded component and the other end extending toward the telescopic end of the elastic buffer component, leaving a gap between them, and abutting against the telescopic end of the elastic buffer component during the lateral contraction of the elastic buffer component.

[0009] Furthermore, two parallel and spaced steel connectors are fixedly connected to the embedded part. The inner surfaces of the two steel connectors together form a cavity through which the vertical keel of the curtain wall passes, and space is reserved in the cavity to allow the vertical keel of the curtain wall to move back and forth in the lateral direction.

[0010] Furthermore, the outer surface of the steel adapter is provided with a C-shaped groove extending transversely, and a waist-shaped hole is provided in the groove.

[0011] The telescopic end of the elastic buffer is connected to an L-shaped steel pad. The steel pad is reciprocatingly positioned in the groove and is fixedly connected to the vertical keel of the curtain wall by bolts passing through the waist-shaped hole.

[0012] Furthermore, the overload limiting component includes a tie spring, a rotating shaft, a bracket, an arc-shaped push rod, an inverted L-shaped limiting plate, and a V-shaped hand plate;

[0013] The bracket is fixedly installed on the embedded part.

[0014] The connection between the tie rod portion and the arc-shaped rod portion of the arc-shaped push rod is hinged to the top of the bracket via a rotating shaft; the tie rod portion of the arc-shaped push rod is connected to the bracket via a tie spring, and an inverted L-shaped limiting plate is provided on the embedded part, which bends toward the tie rod portion and is used to limit the movement position of the tie rod portion; the arc-shaped rod portion of the arc-shaped push rod extends toward the telescopic end and leaves a gap between it and the telescopic end in the naturally extended state, and a V-shaped hand plate bent toward the arched back side of the arc-shaped rod portion is connected to the free end of the arc-shaped rod portion.

[0015] Furthermore, the steel pad has an L-shaped structure, and a flange for abutting against the V-shaped hand plate is provided on the vertical side plate facing the arc-shaped rod.

[0016] Furthermore, bolt holes are provided on the transverse side plate of the steel gasket, and it is fixedly connected to the vertical keel of the curtain wall by bolts that pass through the bolt holes and the waist-shaped holes in sequence.

[0017] Furthermore, the elastic buffer element is a telescopic spring.

[0018] Furthermore, grooves for installing and connecting the elastic buffer are respectively provided on the opposite sides of the embedded part and the steel gasket.

[0019] In a second aspect, the present invention provides a construction method for a curtain wall vibration elastic mitigation structure as described in any of the first aspects, comprising the following steps:

[0020] Step S1: Install embedded parts for curtain wall connecting frames on the main building structure, and fix two parallel spaced steel transition parts on the outer side of the embedded parts to form a cavity that extends outward laterally.

[0021] Step S2: Install the vertical keel of the curtain wall in the cavity formed between the two steel transition pieces, and place an L-shaped steel shim in the C-shaped groove on the outside of the steel transition piece;

[0022] Step S3: Use bolts to sequentially pass through the bolt holes of the steel washer on one side, the waist-shaped hole of the steel adapter, the vertical keel of the curtain wall, and the waist-shaped hole of the steel adapter and the bolt holes of the steel washer on the other side, and tighten them to fix them.

[0023] Step S4: Place an elastic buffer in the groove on the opposite side between the embedded part and the two steel shims, and adjust the distance between the steel shims and the embedded part, as well as the expansion and contraction state of the elastic buffer.

[0024] Step S5: Fix the bracket of the overload limiting component to the embedded part, and connect the arc-shaped push rod at the top of the bracket. The tie rod part of the arc-shaped push rod is connected to the bracket through the tie spring and the tie rod part is placed inside the inverted L-shaped limiting plate.

[0025] Step S6: Adjust the tension spring to a non-tight state so that the V-shaped hand plate connected to the free end of the arc-shaped rod extends towards the telescopic end and leaves a gap between it and the telescopic end in the naturally extended state;

[0026] Step S7: When the vertical keel of the curtain wall moves towards the main building, the steel shims move laterally along the waist-shaped holes of the steel transition piece through the bolts, and the vertical side plates of the steel shims compress the elastic buffer, forming the first buffer state.

[0027] In addition, the flange of the vertical side plate abuts against the V-shaped hand plate connected to the free end of the extrusion arc rod, while the tie rod of the arc push rod drives the tie spring to be in a tensile state, which is in the second buffer state.

[0028] Furthermore, during the movement of the vertical keel of the curtain wall toward the main building, when the tie spring is in a tense state and the tie rod is against the inverted L-shaped limiting plate, it is in the third buffer state.

[0029] Compared with existing technologies, the beneficial effects achieved by this invention are as follows: The curtain wall vibration elastic mitigation structure provided by this invention, by setting curtain wall connecting frames, elastic buffers, and overload limiting components, effectively mitigates wind-induced curtain wall vibration and enhances the overall vibration resistance of the curtain wall system by adding an elastic buffer structure between the building structure and the vertical keel of the curtain wall, while ensuring that the load-bearing capacity of the curtain wall connection structure meets the requirements; it improves the wind-induced vibration buffering capacity of the curtain wall system, extends the service life of the curtain wall, and the wind-induced vibration overload design effectively enhances the stability of the curtain wall system and reduces the adverse effects of wind-induced vibration on the curtain wall system; the maintenance cost is low, as the elastic buffers and overload limiting components are all load-bearing components, and when the elasticity weakens, they can be replaced through the gap between the curtain wall system and the building structure, making disassembly and maintenance convenient. Attached Figure Description

[0030] Figure 1A schematic diagram (I) of an elastic vibration mitigation structure for a curtain wall provided in an embodiment of the present invention.

[0031] Figure 2 This is a schematic diagram of a curtain wall connection frame provided in an embodiment of the present invention.

[0032] Figure 3 This is a schematic diagram of a steel adapter provided in an embodiment of the present invention.

[0033] Figure 4 This is a schematic diagram of a steel gasket provided in an embodiment of the present invention.

[0034] Figure 5 This is a schematic diagram of an embedded part provided in an embodiment of the present invention.

[0035] Figure 6 This is a schematic diagram of an elastic buffer provided in an embodiment of the present invention.

[0036] Figure 7 This is a schematic diagram of an overload limiting component provided in an embodiment of the present invention.

[0037] Figure 8 This is a top view of a curtain wall vibration elastic mitigation structure provided in an embodiment of the present invention.

[0038] Figure 9 A schematic diagram (II) of an elastic vibration mitigation structure for a curtain wall provided in an embodiment of the present invention.

[0039] In the diagram: 1. Main building structure; 2. Vertical curtain wall keel; 3. Embedded parts; 4. Steel adapter; 5. Steel gasket; 6. Slide groove; 7. Groove; 8. Waist-shaped hole; 9. Bolt hole; 10. Bolt; 11. Elastic buffer; 12. Tie spring; 13. Rotating shaft; 14. Bracket; 15. Arc-shaped push rod; 16. Inverted L-shaped limit plate; 17. V-shaped hand plate; 18. Cavity; 19. Curtain wall body; 20. Tie rod part; 21. Arc-shaped rod part. Detailed Implementation

[0040] The present invention will be further described below with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and should not be used to limit the scope of protection of the present invention.

[0041] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are used only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0042] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art will understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0043] refer to Figures 1-9 As shown, this embodiment of the invention provides a curtain wall vibration elastic damping structure, installed between the building body 1 and the vertical curtain wall keel 2 connected to the exterior curtain wall body, comprising:

[0044] The curtain wall connecting frame is equipped with embedded parts 3 that are pre-embedded in the main body of the building 1. The embedded parts 3 are connected to steel adapters 4 that extend laterally toward the vertical keel 2 of the curtain wall.

[0045] Elastic buffer 11, the fixed end of the elastic buffer 11 is connected to the embedded part 3, and the telescopic end of the elastic buffer 11 is connected to the vertical keel 2 of the curtain wall in a reciprocating manner along the steel adapter 4.

[0046] The overload limiter has one end connected to the embedded part 3 and the other end extending toward the telescopic end of the elastic buffer 11, with a gap reserved between it and the telescopic end, and abutting against the telescopic end of the elastic buffer 11 during the lateral contraction of the elastic buffer 11.

[0047] In this embodiment, two parallel steel adapters 4 are fixedly connected to the embedded part 3. The inner sides of the two steel adapters together form a cavity 18 through which the vertical keel 2 of the curtain wall passes, and a space is reserved in the cavity 18 to allow the vertical keel 2 of the curtain wall to move back and forth in the lateral direction.

[0048] Among them, the embedded part 3 and the steel adapter 4 can be connected by various methods such as welding, bolt connection, and snap-fit ​​connection.

[0049] The embedded part 3 includes an embedded steel plate and embedded support rods. Several parallel and spaced embedded support rods are connected to the inner side of the embedded steel plate, and a groove 7 for installing the elastic buffer 11 is provided on the outer side. In order to facilitate the installation of the elastic buffer 11, the groove 7 is a long strip-shaped groove 7.

[0050] The outer side of the steel adapter 4 is provided with a C-shaped groove 6 that extends transversely, and a waist-shaped hole 8 is provided in the groove 6.

[0051] The telescopic end of the elastic buffer 11 is connected to an L-shaped steel pad 5. The steel pad 5 is installed in the sliding groove 6 and can move back and forth laterally. It is fixedly connected to the vertical keel 2 of the curtain wall through bolts with oblong holes 8. When affected by wind vibration, the vertical keel 2 of the curtain wall moves towards the main building 1. It will drive the steel pad 5 to move laterally left and right in the sliding groove 6 through the bolts with oblong holes 8.

[0052] Bolt holes 9 are provided on the transverse side plate of the steel gasket 5, and it is fixedly connected to the vertical keel 2 of the curtain wall by bolts that pass through the bolt holes 9 and the waist-shaped holes 8 in sequence.

[0053] In this embodiment, the overload limiting component includes a tension spring 12, a rotating shaft 13, a bracket 14, an arc-shaped push rod 15, an inverted L-shaped limiting plate 16, and a V-shaped hand plate 17.

[0054] The bracket 14 is fixedly installed on the embedded part 3, or it can be fixed on the steel adapter 4.

[0055] The connection between the tie rod portion 20 and the arc-shaped rod portion 21 of the arc-shaped push rod 15 is hinged to the top of the bracket 14 via a rotating shaft 13.

[0056] The tie rod portion 20 of the arc-shaped push rod 15 is connected to the bracket 14 via a tie spring 12, and an inverted L-shaped limiting plate 16 is provided on the embedded part 3, which bends toward the tie rod portion 20 and is used to limit the movement position of the tie rod portion 20.

[0057] The arc-shaped rod 21 of the arc-shaped push rod 15 extends toward the telescopic end and leaves a gap between it and the telescopic end in the naturally extended state. A V-shaped hand plate 17 is connected to the free end of the arc-shaped rod 21, which is bent toward the arched back side of the arc-shaped rod 21.

[0058] Furthermore, in some embodiments, when the V-shaped hand plate 17 is pressed against, the arc-shaped rod portion 21 drives the V-shaped hand plate 17 to move downward, and the V-shaped bend of the V-shaped hand plate 17 can move toward the elastic buffer member 11 and abut against the elastic buffer member 11.

[0059] The V-shaped hand plate 17 and the arc-shaped rod 21 can be integrally formed or detachable.

[0060] The steel gasket 5 has an L-shaped structure, and a flange for abutting against the V-shaped hand plate 17 is provided on the vertical side plate of the steel gasket 5 facing the arc-shaped rod 21.

[0061] In addition, grooves 7 for installing and connecting elastic buffer members 11 are respectively provided on the opposite sides between the embedded part 3 and the steel gasket. The edge of the groove 7 on the steel gasket can serve as a flange for abutting against the V-shaped hand plate 17.

[0062] In this embodiment, the elastic buffer 11 is a telescopic spring.

[0063] This invention provides a construction method for a curtain wall vibration elastic mitigation structure as described above, comprising the following steps:

[0064] Step S1: Install the embedded part 3 of the curtain wall connecting frame on the main body 1, and fix two parallel spaced steel transition parts 4 on the outer side of the embedded part 3 to form a cavity 18 that extends outward laterally.

[0065] Step S2: Install the vertical keel 2 of the curtain wall in the cavity 18 formed between the two steel transition pieces 4, and place an L-shaped steel shim 5 in the C-shaped sliding groove 6 on the outer side of the steel transition piece 4;

[0066] Step S3: Use bolts to sequentially pass through the bolt holes 9 of the steel washer 5 on one side, the waist-shaped hole 8 of the steel adapter 4, the vertical keel 2 of the curtain wall, and the waist-shaped hole 8 of the steel adapter 4 and the bolt holes 9 of the steel washer 5 on the other side, and tighten them to fix them.

[0067] Step S4: Place an elastic buffer 11 in the groove 7 on the opposite side between the embedded part 3 and the two steel shims, and adjust the distance between the steel shims and the embedded part 3 and adjust the extension and retraction state of the elastic buffer 11.

[0068] Step S5: Fix the bracket 14 of the overload limiting component to the embedded part 3, and connect the arc-shaped push rod 15 to the top of the bracket 14. The tie rod part 20 of the arc-shaped push rod 15 is connected to the bracket 14 through the tie spring 12 and the tie rod part 20 is placed inside the inverted L-shaped limiting plate 16.

[0069] Step S6: Adjust the tension spring 12 to a non-tight state so that the V-shaped hand plate 17 connected to the free end of the arc rod 21 extends toward the telescopic end and leaves a gap between it and the telescopic end in the naturally extended state.

[0070] Step S7: When the vertical keel 2 of the curtain wall moves toward the main body 1, the steel shim 5 moves laterally along the waist-shaped hole 8 of the steel adapter 4 through the through bolts, and the vertical side plate of the steel shim 5 compresses the elastic buffer 11 to form the first buffer state.

[0071] In addition, the flange of the vertical side plate abuts against the V-shaped hand plate 17 connected to the free end of the extrusion arc rod 21, while the tie rod 20 of the arc push rod 15 drives the tie spring 12 to be in a tensile state, which is in the second buffer state.

[0072] During the movement of the vertical keel 2 of the curtain wall toward the main body 1, when the tie spring 12 is in a tensile state and the tie rod part 20 abuts against the inverted L-shaped limit plate 16, it is in the third buffer state.

[0073] When there is an accidental impact load or a load exceeding the design limit, the spring is compressed or stretched, thereby generating an elastic force opposite to the force of the horizontal load, which alleviates the direct impact of the horizontal load on the curtain wall system.

[0074] When the horizontal load is too large, such as exceeding the spring tension limit, the spring will receive a large force and undergo significant deformation. To prevent damage to the spring, the arc-shaped push rod 15 will press against the steel pad 5, thus entering a second buffer state. Furthermore, during the movement of the curtain wall vertical keel 2 towards the building body 1, when the tie spring 12 is in a taut state and the tie rod portion 20 abuts against the inverted L-shaped limiting plate 16, it enters a third buffer state. Both the second and third buffer states effectively protect the connection structure between the spring and the curtain wall.

[0075] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A curtain wall vibration elastic mitigation structure installed between a building main body and a curtain wall vertical keel, characterized by, include: The curtain wall connecting frame is equipped with embedded parts that are pre-embedded in the main body of the building, and the embedded parts are connected to steel adapters that extend laterally toward the vertical keel of the curtain wall; An elastic buffer member, wherein the fixed end of the elastic buffer member is connected to the embedded part, and the telescopic end of the elastic buffer member is connected to the vertical keel of the curtain wall in a reciprocating manner along the steel adapter. An overload limiting component, one end of which is connected to the embedded component, and the other end extends toward the telescopic end of the elastic buffer component, with a gap reserved between them, and abuts against the telescopic end of the elastic buffer component during the lateral contraction of the elastic buffer component. The overload limiting component includes a tie spring, a rotating shaft, a bracket, an arc-shaped push rod, an inverted L-shaped limiting plate, and a V-shaped hand plate; The bracket is fixedly installed on the embedded part. The connection between the tie rod portion and the arc-shaped rod portion of the arc-shaped push rod is hinged to the top of the bracket via a rotating shaft; the tie rod portion of the arc-shaped push rod is connected to the bracket via a tie spring, and an inverted L-shaped limiting plate is provided on the embedded part, which bends toward the tie rod portion and is used to limit the movement position of the tie rod portion; the arc-shaped rod portion of the arc-shaped push rod extends toward the telescopic end and leaves a gap between it and the telescopic end in the naturally extended state, and a V-shaped hand plate bent toward the arched back side of the arc-shaped rod portion is connected to the free end of the arc-shaped rod portion.

2. The curtain wall oscillation elastically mitigating structure according to claim 1, characterized by, Two parallel steel adapters are fixedly connected to the embedded part. The inner surfaces of the two steel adapters together form a cavity through which the vertical keel of the curtain wall passes, and space is reserved in the cavity to allow the vertical keel of the curtain wall to move back and forth in the horizontal direction.

3. The curtain wall oscillation elastically mitigating structure according to claim 2, characterized by, The outer surface of the steel adapter is provided with a C-shaped groove that extends transversely, and a waist-shaped hole is provided in the groove. The telescopic end of the elastic buffer is connected to an L-shaped steel pad. The steel pad is reciprocatingly positioned in the groove and is fixedly connected to the vertical keel of the curtain wall by bolts passing through the waist-shaped hole.

4. The curtain wall oscillation elastically mitigating structure according to claim 3, characterized by, The steel pad has an L-shaped structure, and a flange for abutting against the V-shaped hand plate is provided on the vertical side plate facing the arc-shaped rod.

5. The curtain wall oscillation elastically mitigating structure according to claim 3, characterized by, The steel gasket has bolt holes on its horizontal side plate and is fixedly connected to the vertical keel of the curtain wall by bolts that pass through the bolt holes and the waist-shaped holes in sequence.

6. The curtain wall oscillation elastically mitigating structure according to claim 5, characterized by, The elastic buffer is a telescopic spring.

7. The oscillation elastically mitigating structure of a curtain wall according to claim 3, characterized by, Grooves for installing and connecting the elastic buffer are respectively provided on the opposite sides between the embedded part and the steel shim.

8. A method of constructing a curtain wall vibration elastically mitigating structure according to any one of claims 3 to 7, characterized by, Includes the following steps: Embedded parts for curtain wall connecting frames are installed on the main body of the building, and two parallel and spaced steel transition parts are fixedly connected on the outer side of the embedded parts to form a cavity that extends outward laterally. The vertical keel of the curtain wall is installed in the cavity formed between the two steel transition pieces, and an L-shaped steel shim is installed in the C-shaped groove on the outside of the steel transition piece. Bolts are sequentially inserted into the bolt holes of the steel washer on one side, the waist-shaped hole of the steel adapter, the vertical keel of the curtain wall, and the waist-shaped hole of the steel adapter and the bolt hole of the steel washer on the other side, and then tightened to secure them. An elastic buffer is respectively arranged in the groove on the opposite side between the embedded part and the two steel pads, and the distance between the steel pad and the embedded part is adjusted and the extension state of the elastic buffer is adjusted; A support of the overload limiting part is fixedly connected to the embedded part, and an arc-shaped push rod is connected to the top end of the support, and the tie rod part of the arc-shaped push rod is connected to the support through a tie spring and is arranged in the inverted L-shaped limiting plate; The tie spring is adjusted to a non-tight state, so that the V-shaped hand plate connected to the free end of the arc-shaped rod part is stretched to the extension end and a gap is reserved between the V-shaped hand plate and the extension end in a natural stretching state; When the curtain wall vertical keel moves towards the building main body, the steel pad is driven to move horizontally along the waist-shaped hole of the steel adapter through the threaded bolt, and the vertical side plate of the steel pad compresses the elastic buffer, forming a first buffer state, And the flange of the vertical side plate abuts against the V-shaped hand plate connected to the free end of the arc-shaped rod part, and the tie spring is driven by the tie rod part of the arc-shaped push rod to be in a tensioned tight state, in a second buffer state.

9. The construction method of a curtain wall vibration elastically mitigating structure according to claim 8, characterized by, During the movement of the curtain wall vertical keel towards the building main body, when the tie spring is in a tensioned tight state and the tie rod part abuts against the inverted L-shaped limiting plate, a third buffer state is formed.

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