Steel pipe damper for building

Abstract

The steel pipe damper for the building comprises two connecting plates and an energy dissipation steel pipe, the two connecting plates are oppositely arranged, and connecting pieces are arranged on the two opposite sides of the two connecting plates respectively. The two ends of the energy dissipation steel pipe are connected with the two connecting plates through connecting pieces correspondingly. Wherein the connecting piece is in clearance fit with the outer circumferential wall of the energy dissipation steel pipe or is in clearance fit with the inner circumferential wall of the energy dissipation steel pipe, and the two ends of the energy dissipation steel pipe abut against the end faces of the two opposite sides of the two connecting plates correspondingly. When the earthquake action is increased, the energy dissipation steel pipe enters a yielding state, the end of the energy dissipation steel pipe is in clearance fit with the connecting piece and abuts against the connecting plate, the end of the energy dissipation steel pipe is free of rigid constraint, cracking damage caused by stretching is avoided, and the connecting piece can further play a certain protection role on the end of the energy dissipation steel pipe; and the performance of the steel pipe damper is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of building engineering, in particular to a steel pipe damper for construction. Background Art

[0002] At present, in the field of wind-resistant and earthquake-resistant engineering of buildings, the energy-absorbing vibration (vibration) reduction technology is generally used, that is, the energy-absorbing vibration reduction device is used to dissipate the energy input by wind vibration or earthquake to achieve the purpose of protecting the building structure. The energy-absorbing vibration reduction device includes a metal damper that uses the elastic-plastic deformation of metal materials to dissipate energy, and the commonly used one is a steel tube damper. The steel tube damper has good ductility and bearing capacity, and can provide a more ideal initial stiffness, but it has the disadvantage that the connection between the energy-absorbing steel tube and the connecting part is easily damaged. When the building structure connected to the two ends of the damper produces relative displacement, it can be known from the knowledge of structural mechanics that the bending moment of the damper at the two ends is the largest, and the bending moment in the middle is the smallest. However, it can be known from the knowledge of material mechanics that the yield bending moment M of the cross section of the energy-absorbing steel tube is (f y πD^3) / 32, where f y is the yield stress of the material, and D is the outer diameter of the energy-absorbing steel pipe, that is, the yield bending moment of each section of the energy-absorbing steel pipe is equal. Therefore, when both ends of the energy-absorbing steel pipe yield, the middle part of the energy-absorbing steel pipe will not yield, especially when accompanied by extrusion external load, the middle part of the energy-absorbing steel pipe will still not yield and cannot play its energy-absorbing role. The existing technology adopts the method of setting a lead core inside the energy-absorbing steel pipe and setting a groove on the outer wall to enhance the yield capacity of the middle part, but this steel pipe damper has a complex structure, high design and processing difficulty, and the groove structure is difficult to adapt to large external loads, and does not have universal applicability. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model proposes a steel pipe damper for construction, which has a simple structure, is quick to assemble, can adapt to large displacement shear deformation, and improves the performance of the steel pipe damper.

[0004] According to an embodiment of the utility model, a steel pipe damper for construction includes two connecting plates and an energy-absorbing steel pipe, wherein the two connecting plates are arranged opposite to each other and connecting pieces are respectively provided on opposite sides of the two connecting plates; the two ends of the energy-absorbing steel pipe are respectively connected to the two connecting plates through the connecting pieces; wherein the connecting pieces are clearance-matched with the outer circumferential wall of the energy-absorbing steel pipe or clearance-matched with the inner circumferential wall of the energy-absorbing steel pipe, and the two ends of the energy-absorbing steel pipe are respectively abutted against the end faces on opposite sides of the two connecting plates.

[0005] A steel pipe damper for construction according to an embodiment of the utility model has at least the following beneficial effects: when the earthquake action is small, the steel pipe damper is in an elastic state, providing additional stiffness and bearing capacity for the structure; when the earthquake action increases, the energy-absorbing steel pipe enters a yield state, even if the energy-absorbing steel pipe undergoes large displacement shear deformation, due to the clearance fit between the end of the energy-absorbing steel pipe and the connecting piece and the abutment with the connecting plate, the end of the energy-absorbing steel pipe has no rigid constraint and will not crack and be damaged due to stretching, and the connecting piece can also play a certain protective role on the end of the energy-absorbing steel pipe, avoiding the steel pipe damper from exiting the working state prematurely, expanding the shear deformation amplitude of the energy-absorbing steel pipe, thereby improving the performance of the steel pipe damper and improving the application range of the steel pipe damper.

[0006] According to some embodiments of the present invention, along the direction of the central axis of the energy-absorbing steel pipe, the length of the energy-absorbing steel pipe is greater than twice the height of the connecting piece.

[0007] According to some embodiments of the present utility model, the connecting member includes a first tube body, the outer circumferential wall of the energy-absorbing steel tube is gap-matched with the inner circumferential wall of the first tube body, and the energy-absorbing steel tube is in abutment with the connecting plate.

[0008] According to some embodiments of the utility model, the connecting plate is provided with a first positioning groove, and the first positioning groove is snap-fitted with the first tube body.

[0009] According to some embodiments of the present invention, the connecting member includes a second tube body, the inner circumferential wall of the energy-absorbing steel tube is gap-matched with the outer circumferential wall of the second tube body, and the energy-absorbing steel tube is in abutment with the connecting plate.

[0010] According to some embodiments of the utility model, the connecting piece includes a third tube body and a fourth tube body concentric with the third tube body, the third tube body and the fourth tube body are respectively connected to the connecting plate, an annular slot is formed between the inner circumferential wall of the third tube body and the outer circumferential wall of the fourth tube body, and the end of the energy-absorbing steel pipe is plugged into the slot and abuts against the connecting plate.

[0011] According to some embodiments of the present invention, the outer peripheral wall of the third tube body is welded and fixed to the connecting plate via a fillet weld, and the inner peripheral wall of the fourth tube body is welded and fixed to the connecting plate via a fillet weld.

[0012] According to some embodiments of the present invention, an end surface of the third tube body facing away from the connecting plate is flush with an end surface of the fourth tube body facing away from the connecting plate.

[0013] According to some embodiments of the present invention, the connecting plate is provided with a plurality of connecting holes, and the plurality of connecting holes are arranged at intervals along the circumference of the connecting plate.

[0014] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present invention is further described below with reference to the accompanying drawings and embodiments, wherein:

[0016] Figure 1 This is a structural schematic diagram of a steel pipe damper for construction according to an embodiment of the utility model;

[0017] Figure 2 This is a structural schematic diagram of a connecting plate according to an embodiment of the utility model;

[0018] Figure 3 This is a schematic diagram of the installation of the connecting member of the first embodiment of the utility model;

[0019] Figure 4 This is a structural schematic diagram of a connecting plate of a second embodiment of the utility model;

[0020] Figure 5 This is a schematic diagram of the installation of the connecting piece of the third embodiment of the utility model;

[0021] Figure 6 This is a cross-sectional view of a steel pipe damper for construction according to an embodiment of the utility model.

[0022] Reference numerals: connecting plate 100 ; first positioning groove 110 ; connecting hole 120 ; connecting member 200 ; first tube body 210 ; second tube body 220 ; third tube body 230 ; fourth tube body 240 ; slot 241 ; fillet weld 250 ; energy-absorbing steel tube 300 . DETAILED DESCRIPTION

[0023] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0024] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0025] In the description of the present utility model, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0026] In the description of the utility model, unless otherwise clearly defined, the words such as setting, installing, connecting, etc. should be understood in a broad sense, and the technical personnel in the relevant technical field can reasonably determine the specific meaning of the above words in the utility model in combination with the specific content of the technical solution. In the description of the utility model, the description of the reference terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in combination with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In the description of the specification, the description of the reference terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in combination with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0027] Reference Figure 1 and Figure 2 As shown, an embodiment of the utility model provides a steel pipe damper for construction, comprising two connecting plates 100 and an energy-absorbing steel pipe 300, wherein the two connecting plates 100 are arranged opposite to each other and connecting pieces 200 are respectively provided on opposite sides of the two connecting plates 100, and the connecting pieces 200 and the connecting plates 100 are fixedly connected; wherein, a plurality of connecting holes 120 are provided on the connecting plates 100, and the connecting holes 120 are through holes or threaded holes penetrating the plate body, and the plurality of connecting holes 120 are arranged at intervals along the circumference of the connecting plates 100, and the connecting plates 100 are connected to the building through the connecting holes 120.

[0028] It should be noted that the shape of the connecting plate 100 is usually a circle or square with a simple structure and convenient processing. Users can also choose other suitable shapes according to actual needs, which will not be repeated here. The energy-consuming steel pipe 300 can be a stainless steel pipe, a common carbon steel pipe or a copper pipe.

[0029] Specifically, when the energy-consuming steel pipe 300 is a stainless steel pipe, it has the advantages of a smaller elastic modulus, a lower proportional limit (generally, the proportional limit is about 36% to 60% of the yield strength, which is less than the proportional limit of about 75% of the yield strength of ordinary structural steel), and better ductility. The strength of stainless steel pipes is usually higher than that of ordinary structural steel, and the ratio of tensile strength to yield strength is also significantly higher than that of ordinary structural steel. It has good corrosion resistance and durability, thereby effectively extending the service life of the energy-consuming steel pipe 300.

[0030] When the energy-absorbing steel pipe 300 is a copper pipe, it has the advantages of good mechanical properties, high compressive strength, good toughness, high ductility, excellent earthquake resistance, impact resistance and fatigue resistance, and the copper pipe is heat-resistant, cold-resistant, corrosion-resistant and fire-resistant, which effectively improves the safety and reliability of the energy-absorbing steel pipe 300.

[0031] The two ends of the energy-absorbing steel pipe 300 are respectively connected to the two connecting plates 100 through the connecting pieces 200. Specifically, one of the connecting pieces 200 and the energy-absorbing steel pipe 300 is provided with a hole groove structure that is gap-matched with the other one, so that the connecting piece 200 and the outer peripheral wall of the energy-absorbing steel pipe 300 are gap-matched or the inner peripheral wall of the energy-absorbing steel pipe 300 are gap-matched, and the two ends of the energy-absorbing steel pipe 300 are respectively abutted against the end faces on the opposite sides of the two connecting plates 100.

[0032] It can be understood that when the earthquake action is small, the steel tube damper is in an elastic state, providing additional stiffness and bearing capacity for the structure; when the earthquake action increases, the energy-absorbing steel tube 300 enters a yield state, even if the energy-absorbing steel tube 300 undergoes large displacement shear deformation, because the end of the energy-absorbing steel tube 300 and the connecting piece 200 are clearance-matched and abut against the connecting plate 100, the end of the energy-absorbing steel tube 300 has no rigid constraint and will not crack and be damaged due to stretching, and the connecting piece 200 can also play a certain protective role on the end of the energy-absorbing steel tube 300, avoiding the steel tube damper from exiting the working state prematurely, expanding the shear deformation amplitude of the energy-absorbing steel tube 300, thereby improving the performance of the steel tube damper and improving the scope of application of the steel tube damper.

[0033] By removing the fixed structure (such as a weld, etc.) between the energy-absorbing steel pipe 300 and the connecting plate 100, the constraints of the stress concentration area of ​​the steel energy-absorbing pipe damper are released, so that the energy-absorbing steel pipe 300 is subjected to more uniform force and has better deformation capacity. At the same time, the energy-absorbing steel pipe 300 as a whole can participate in energy dissipation to a greater extent along the direction of its central axis, giving full play to the energy dissipation characteristics of the energy-absorbing steel pipe 300, and improving the stress performance of the steel pipe damper while improving the energy dissipation capacity of the steel pipe damper.

[0034] Specifically, refer to Figure 1 and Figure 3As shown, it can be understood that the connecting piece 200 includes a first tube body 210, the outer circumferential wall of the energy-absorbing steel tube 300 is gap-matched with the inner circumferential wall of the first tube body 210, and the energy-absorbing steel tube 300 is abutted against the connecting plate 100. In other words, the inner diameter of the first tube body 210 is slightly larger than the outer diameter of the energy-absorbing steel tube 300, the energy-absorbing steel tube 300 is inserted into the center hole of the first tube body 210 and abutted against the end face of the first tube body 210 set on the connecting plate 100.

[0035] By setting the first tube body 210, and the outer peripheral wall of the energy-absorbing steel pipe 300 and the inner peripheral wall of the first tube body 210 are gap-matched, on the one hand, the first tube body 210 has a simple structure and is easy to produce and install, which can effectively simplify the structure of the steel pipe damper, and when the steel pipe damper is assembled, the first tube body 210 can position the energy-absorbing steel pipe 300, thereby improving the convenience of assembling the steel pipe damper; on the other hand, when the earthquake effect increases and the energy-absorbing steel pipe 300 is shear-deformed, the first tube body 210 can limit and protect the end of the energy-absorbing steel pipe 300 on the outside of the energy-absorbing steel pipe 300, thereby improving the reliability of the energy-absorbing steel pipe 300. In this embodiment, the area close to the central axis of the energy-absorbing steel pipe 300 is defined as the inner part, and the area far from the central axis of the energy-absorbing steel pipe 300 is defined as the outer part, which is specifically explained here and will not be repeated hereafter.

[0036] Reference Figure 3 As shown, it can be understood that the connecting plate 100 is provided with a first positioning groove 110 , the first positioning groove 110 matches with the first tube body 210 , and the first positioning groove 110 and the first tube body 210 are snap-fitted.

[0037] By providing the first positioning groove 110 , the first tube body 210 can be positioned on the connecting plate 100 before fixing the first tube body 210 , thereby effectively improving the installation stability of the first tube body 210 and improving the assembly convenience of the steel tube shock absorber.

[0038] In addition, it can be understood that the connecting piece 200 includes a second tube body 220, the inner circumferential wall of the energy-absorbing steel pipe 300 is gap-matched with the outer circumferential wall of the second tube body 220, and the energy-absorbing steel pipe 300 is abutted against the connecting plate 100. In other words, the outer diameter of the second tube body 220 is slightly smaller than the inner diameter of the energy-absorbing steel pipe 300, the second tube body 220 is inserted into the center hole of the energy-absorbing steel pipe 300, and the energy-absorbing steel pipe 300 and the connecting plate 100 are provided with the end face of the second tube body 220 abutting against each other.

[0039] By setting the second tube body 220, and the inner circumferential wall of the energy-absorbing steel tube 300 is gap-matched with the outer circumferential wall of the first tube body 210, on the one hand, the second tube body 220 has a simple structure and a small volume, which effectively simplifies the structure of the steel tube damper and saves the production cost of the steel tube damper. When the steel tube damper is assembled, the second tube body 220 can position the energy-absorbing steel tube 300, thereby improving the assembly convenience of the steel tube damper. On the other hand, when the earthquake effect increases and the energy-absorbing steel tube 300 is shear-deformed, the second tube body 220 can limit and protect the end of the energy-absorbing steel tube 300 on the inner side of the energy-absorbing steel tube 300, thereby improving the reliability of the energy-absorbing steel tube 300.

[0040] It should be noted that the connecting plate 100 is provided with a second positioning groove, the second positioning groove matches the second tube body 220, and the second positioning groove and the second tube body 220 are engaged and matched. The connection and effect of the second tube body 220 and the second positioning groove can refer to the above description of the first positioning groove 110 and the first tube body 210, which will not be repeated here.

[0041] Reference Figure 4 As shown, it can be understood that the connecting piece 200 includes a third tube body 230 and a fourth tube body 240 concentric with the third tube body 230, the third tube body 230 and the fourth tube body 240 are respectively connected to the connecting plate 100, and an annular slot 241 is formed between the inner circumferential wall of the third tube body 230 and the outer circumferential wall of the fourth tube body 240, along the radial direction of the energy-absorbing steel pipe 300, the width of the slot 241 is greater than the width of the energy-absorbing steel pipe 300, and the end of the energy-absorbing steel pipe 300 is plugged into the slot 241 and abuts against the connecting plate 100.

[0042] By providing the third tube body 230 and the fourth tube body 240, and forming a slot 241 between the third tube body 230 and the fourth tube body 240 to match the gap with the energy-absorbing steel tube 300, when the earthquake effect increases and the energy-absorbing steel tube 300 is sheared and deformed, the third tube body 230 and the fourth tube body 240 can limit and protect the ends of the energy-absorbing steel tube 300 on both sides of the inner and outer sides of the energy-absorbing steel tube 300, thereby greatly enhancing the protection capability of the connecting piece 200 and further improving the performance of the steel tube damper.

[0043] It should be noted that the third tube body 230 and the fourth tube body 240 can be positioned by the annular first positioning groove 110. Specifically, an annular first positioning groove 110 is provided on the connecting plate 100. The outer diameter of the first positioning groove 110 is equal to the outer diameter of the third tube body 230, and the inner diameter of the first positioning groove 110 is equal to the inner diameter of the third tube body 230. Therefore, the third tube body 230 and the fourth tube body 240 can be positioned at the same time by one first positioning groove 110, thereby further simplifying the structure of the steel tube damper.

[0044] Reference Figure 5As shown, it can be understood that the outer circumferential wall of the third tube body 230 is welded and fixed to the connecting plate 100 through the fillet weld 250 , and the inner circumferential wall of the fourth tube body 240 is welded and fixed to the connecting plate 100 through the fillet weld 250 .

[0045] The third tube body 230 and the fourth tube body 240 are both fixed by welding with the end face of the connecting plate 100 through the fillet weld 250, which can effectively improve the installation stability of the energy-consuming third tube body 230 and the fourth tube body 240 and enhance the protection capability of the connecting piece 200. At the same time, the fillet weld 250 between the third tube body 230 and the connecting plate 100 is located on the outer peripheral wall of the third tube body 230, and the fillet weld 250 between the fourth tube body 240 and the connecting plate 100 is located on the inner peripheral wall of the fourth tube body 240, which can avoid interference between the fillet weld 250 and the energy-consuming steel pipe 300, thereby affecting the installation of the energy-consuming steel pipe 300 and effectively improving the structural rationality of the connecting piece 200.

[0046] It should be noted that when the first tube body 210 or the second tube body 220 is provided separately, the outer peripheral wall of the first tube body 210 is welded and fixed to the connecting plate 100 through the fillet weld 250, and the inner peripheral wall of the second tube body 220 is welded and fixed to the connecting plate 100 through the fillet weld 250. The specific connection and effect thereof can be referred to the above description of the third tube body 230 and the fourth tube body 240, which will not be repeated here.

[0047] Furthermore, along the direction of the central axis of the energy-absorbing steel pipe 300, the length of the energy-absorbing steel pipe 300 is greater than twice the height of the connecting piece 200. In other words, after the two ends of the energy-absorbing steel pipe 300 abut against the two connecting plates 100, there will be no contact between the opposite side end faces of the two connecting pieces 200 but a gap will be formed.

[0048] The length of the energy-absorbing steel pipe 300 is set to be greater than twice the height of the connecting piece 200, so that after the steel pipe damper is assembled, there is no connecting piece 200 blocking the inner and outer sides of the middle part of the energy-absorbing steel pipe 300. When the earthquake effect increases and the energy-absorbing steel pipe 300 is shear-deformed, the gap formed between the two connecting pieces 200 can provide space for the energy-absorbing steel pipe 300 to recover and deform, avoiding interference between the connecting piece 200 and the middle part of the energy-absorbing steel pipe 300, affecting the energy consumption of the steel pipe damper, and effectively improving the structural rationality of the steel pipe damper.

[0049] Continue to refer to Figure 5 As shown, it can be understood that the end surface of the third tube body 230 facing away from the connecting plate 100 is flush with the end surface of the fourth tube body 240 facing away from the connecting plate 100. In other words, along the direction of the central axis of the energy-absorbing steel tube 300, the heights of the third tube body 230 and the fourth tube body 240 are equal.

[0050] The end faces of the third tube body 230 and the fourth tube body 240 are arranged flush, and when the user produces and cuts the third tube body 230 and the fourth tube body 240, the same length size can be used for cutting, thereby improving the production efficiency of the steel tube damper and improving the structural consistency of the connecting piece 200.

[0051] It should be added that in other embodiments, the user can also set the height of the third tube body 230 along the central axis of the energy-absorbing steel tube 300 to be greater than or less than the height of the fourth tube body 240 according to actual needs, thereby adapting to different assembly requirements of the energy-absorbing steel tube 300.

[0052] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A steel pipe damper for construction, characterized in that: include: Two connecting plates, the two connecting plates are arranged opposite to each other and connecting pieces are respectively arranged on opposite sides of the two connecting plates; The energy-absorbing steel pipe has two ends connected to the two connecting plates through the connecting pieces respectively; The connecting piece is gap-matched with the outer circumferential wall of the energy-absorbing steel pipe or the inner circumferential wall of the energy-absorbing steel pipe, and both ends of the energy-absorbing steel pipe are respectively abutted against the end surfaces on opposite sides of the two connecting plates.

2. A steel pipe damper for construction according to claim 1, characterized in that: Along the direction of the central axis of the energy-absorbing steel pipe, the length of the energy-absorbing steel pipe is greater than twice the height of the connecting piece.

3. A steel pipe damper for construction according to claim 2, characterized in that: The connecting member comprises a first tube body, the outer peripheral wall of the energy-absorbing steel tube is clearance-matched with the inner peripheral wall of the first tube body, and the energy-absorbing steel tube is in contact with the connecting plate.

4. A steel pipe damper for construction according to claim 3, characterized in that: The connecting plate is provided with a first positioning groove, and the first positioning groove is snap-fitted with the first tube body.

5. A steel pipe damper for construction according to claim 2, characterized in that: The connecting piece includes a second tube body, the inner peripheral wall of the energy-absorbing steel tube is clearance-matched with the outer peripheral wall of the second tube body, and the energy-absorbing steel tube is in contact with the connecting plate.

6. A steel pipe damper for construction according to claim 2, characterized in that: The connecting piece includes a third tube body and a fourth tube body concentric with the third tube body, the third tube body and the fourth tube body are respectively connected to the connecting plate, an annular slot is formed between the inner circumferential wall of the third tube body and the outer circumferential wall of the fourth tube body, and the end of the energy-absorbing steel pipe is plugged into the slot and abuts against the connecting plate.

7. A steel pipe damper for construction according to claim 6, characterized in that: The outer peripheral wall of the third tube body is welded and fixed to the connecting plate through a fillet weld, and the inner peripheral wall of the fourth tube body is welded and fixed to the connecting plate through a fillet weld.

8. A steel pipe damper for construction according to claim 6 or 7, characterized in that: The end surface of the third tube body facing away from the connecting plate is flush with the end surface of the fourth tube body facing away from the connecting plate.

9. The steel pipe damper for construction according to claim 1, characterized in that: The connecting plate is provided with a plurality of connecting holes, and the plurality of connecting holes are arranged at intervals along the circumference of the connecting plate.

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