Assembly type steel structure beam-column joint damping structure
By using a prefabricated steel beam-column joint damping structure, and combining diagonal bracing and friction dampers, the problem of poor seismic performance of traditional steel beam-column joints is solved. This achieves load-bearing capacity and frictional energy dissipation, improving the seismic performance of the joints and reducing maintenance costs.
Patent Information
- Application Number
- CN202423004152.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-05
- Publication Date
- 2025-11-18
- Estimated Expiration
- 2034-12-05
AI Technical Summary
Traditional steel beam and column connection nodes have poor seismic performance when facing earthquakes, and existing bracing structures can only provide stiffness, which can easily lead to brittle failure.
The prefabricated steel beam-column joint damping structure is adopted. Through the combination of diagonal bracing and friction dampers, it achieves the dual functions of load bearing and friction energy dissipation. The diagonal bracing increases stiffness, and the friction dampers dissipate energy through friction deformation before the connection nodes during an earthquake, thereby reducing seismic energy.
It improves the seismic performance of connection nodes, reduces earthquake damage, lowers maintenance costs, and has good prospects for widespread application.
Smart Images
Figure CN223562368U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the technical field of building engineering, especially relate to a fabricated steel structure beam column joint damping structure. BACKGROUND
[0002] With high-rise building and large complex structure increasing, how to effectively improve the seismic performance of these structures has become the focus of engineers. Although the traditional steel structure has the advantages of high strength, light weight, convenient construction, etc., its toughness and seismic capacity still need to be strengthened when facing strong earthquakes and other natural disasters, and the connecting joint of the traditional steel structure beam and steel structure column is generally directly welded or connected through bolts, and the steel structure joint often appears damage and other phenomena in the earthquake. In order to improve the bearing capacity and stiffness of the joint, haunches are usually used at the connecting joint of the structure beam and the structure column, but the haunch can only provide the stiffness of the joint, the energy dissipation performance of the joint is poor, and the increase of the stiffness of the joint is easy to cause brittle failure at the connecting place of the haunch and the beam column. Therefore, the problem of poor seismic performance of the connecting joint of the traditional steel structure beam and the steel structure column needs to be solved urgently. SUMMARY
[0003] The utility model discloses a kind of fabricated steel structure beam column joint damping structures, with bearing and friction energy dissipation dual action, can effectively reduce the seismic damage of the connecting joint of structure beam and structure column.
[0004] The utility model is implemented by the following technical solutions:
[0005] A kind of fabricated steel structure beam column joint damping structure, comprising:
[0006] Two mounting seats for being mounted on structure beam and structure column respectively;
[0007] Two diagonal braces, two diagonal braces are arranged at intervals, and two ends of the diagonal brace are respectively detachably connected with two mounting seats;
[0008] Friction damper, the friction damper includes two base plates and multiple friction plates, two base plates are connected with two diagonal braces respectively, two ends of each friction plate are respectively in contact with two base plates, and the base plate is equipped with pre-tightening force connecting assembly for being connected with the friction plate, for adjusting the pressure between the base plate and the friction plate.
[0009] Further, the plurality of friction plates are two by two in a group, two friction plates in each group are respectively located on two sides of the base plate, and a plurality of groups of friction plates are arranged along the length direction of the base plate, the pre-tightening force connecting assembly comprises a plurality of pre-tightening force connecting mechanisms, the plurality of pre-tightening force connecting mechanisms correspond to the plurality of groups of friction plates one by one, the plurality of pre-tightening force connecting mechanisms are arranged on the base plate and are connected with the plurality of groups of friction plates respectively, and are used for adjusting the pressure between the base plate and the friction plates.
[0010] Further, the two friction plates in each group are a first friction plate and a second friction plate respectively, the pre-tightening force connecting mechanism comprises a bolt, a first pressing plate, a second pressing plate, a butterfly spring, a sleeve and a nut, the bolt is sequentially threaded through the first pressing plate, the first friction plate, the base plate, the second friction plate, the second pressing plate, the butterfly spring and the sleeve and is threadedly connected with the nut.
[0011] Further, a gasket is arranged between the sleeve and the butterfly spring, between the butterfly spring and the second pressing plate and between the first pressing plate and the head of the bolt.
[0012] Further, the mounting seat comprises a mounting plate and a connecting plate arranged vertically on the mounting plate, and the connecting plate is detachably connected with the inclined strut.
[0013] Further, a plurality of through holes are formed in the mounting plate.
[0014] Compared with the prior art, the beneficial effects of the utility model are that the inclined strut can improve the rigidity of the connecting joint of the structural beam and the structural column, improve the bearing capacity of the connecting joint, protect the connecting joint, can also guide the force on the connecting joint to be transmitted to the friction damper, make the friction damper deform and dissipate energy before the connecting joint, and the inclined strut deforms and destroys in the last, so that the dual functions of bearing and friction energy dissipation are realized, the seismic energy of the connecting joint is reduced, the seismic performance of the connecting joint is improved, and the connecting joint is protected; the inclined strut and the mounting seat are detachably connected, if the friction damper is damaged after an earthquake, a new friction damper can be replaced, the maintenance cost is low, and the utility model has good popularization and application prospect. BRIEF DESCRIPTION OF DRAWINGS
[0015] Figure 1 It is a structural schematic view of the utility model assembled steel structure beam column joint damping structure;
[0016] Figure 2 It is a structural schematic view of the utility model assembled steel structure beam column joint damping structure mounted on the structural beam and the structural column;
[0017] Figure 3 It is a structural schematic view of the friction damper in the utility model assembled steel structure beam column joint damping structure.
[0018] Figure 4 It is the structural schematic view of pre-tightening force connecting mechanism in the damping structure of the assembled steel structure beam column joint of the utility model.
[0019] Figure 5 It is the structural schematic view of mounting plate in the damping structure of the assembled steel structure beam column joint of the utility model.
[0020] In the figure, 1 is a mounting seat, 11 is a mounting plate, 12 is a connecting plate, 13 is a through hole, 2 is a diagonal brace, 3 is a friction damper, 31 is a base plate, 32 is a friction plate, 33 is a pre-tightening force connecting mechanism, 331 is a bolt, 332 is a first pressing plate, 333 is a second pressing plate, 334 is a butterfly spring, 335 is a sleeve, 336 is a nut, 337 is a gasket, 4 is a structural beam, and 5 is a structural column. DETAILED DESCRIPTION
[0021] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be described clearly and completely below in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. The components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.
[0022] Therefore, the following detailed description of the embodiments of the utility model provided in the drawings is not intended to limit the scope of the claimed utility model, but only represents selected embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the utility model.
[0023] It should be noted that: similar reference numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings. Meanwhile, in the description of the utility model, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.
[0024] It is to be noted that the relative terms such as first and second and the like in this context are used merely for differentiating one entity or action from another, and do not necessarily require or imply that there is any such actual relationship or order between these entities or actions. Also, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion, so that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the statement "comprising a" does not exclude the presence of additional identical elements in the process, method, article, or apparatus that includes the element.
[0025] In the description of the utility model, it is to be noted that the terms "upper", "lower", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship commonly placed when the utility model product is used, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model.
[0026] Please refer to Figure 1 , Figure 2 and Figure 3 , Figure 1 is a structural schematic view of the assembled steel structure beam column joint damping structure of the utility model, Figure 2 is a structural schematic view of the assembled steel structure beam column joint damping structure of the utility model installed on the structural beam and the structural column, Figure 3 is a structural schematic view of the friction damper in the assembled steel structure beam column joint damping structure of the utility model. An assembled steel structure beam column joint damping structure comprises two mounting seats 1, two inclined braces 2 and a friction damper 3, the two mounting seats 1 are respectively used for being mounted on a structural beam 4 and a structural column 5, the two inclined braces 2 are arranged at intervals, and the two ends of the inclined brace 2 are respectively detachably connected with the two mounting seats 1, the friction damper 3 comprises two base plates 31 and a plurality of friction plates 32, the two base plates 31 are respectively connected with the two inclined braces 2, the two ends of each friction plate 32 are respectively in contact with the two base plates 31, and the base plate 31 is provided with a pretightening force connecting assembly connected with the friction plate 32 and used for adjusting the pressure between the base plate 31 and the friction plate 32.
[0027] In use, the two mounting seats 1 are respectively installed on the structural beam 4 and the structural column 5, so that the damping structure of the assembled steel structure beam-column joint of the utility model is installed between the structural beam 4 and the structural column 5. The diagonal brace 2 can improve the rigidity of the connecting joint of the structural beam 4 and the structural column 5, improve the bearing capacity of the connecting joint, protect the connecting joint, and at the same time in an earthquake, the diagonal brace 2 can also guide the force on the connecting joint to be transmitted to the friction damper 3. Under the action of the pre-compression force of the pre-tightening force connecting assembly, the friction plate 32 and the base plate 31 will generate a friction energy dissipation effect, so that the friction damper 3 generates friction deformation energy dissipation before the connecting joint, reduces the seismic energy, and the diagonal brace 2 finally generates elastic-plastic deformation and damage, so as to realize the dual functions of bearing and friction energy dissipation, reduce the seismic energy of the connecting joint, improve the seismic performance of the connecting joint, protect the safety of the connecting joint, and thus protect the seismic safety of the steel structure main body. The diagonal brace 2 and the mounting seat 1 are detachably connected, and if the friction damper 3 is damaged after an earthquake, a new friction damper 3 can be replaced, the maintenance cost is low, and the damping structure has good popularization and application prospect
[0028] In an embodiment, the plurality of friction plates 32 are in groups of two, the two friction plates 32 of each group are located on the two sides of the base plate 31 respectively, and the plurality of groups of friction plates 32 are arranged at intervals along the length direction of the base plate 31. The pre-tightening force connecting assembly includes a plurality of pre-tightening force connecting mechanisms 33, the plurality of pre-tightening force connecting mechanisms 33 correspond to the plurality of groups of friction plates 32 one by one, the plurality of pre-tightening force connecting mechanisms 33 are arranged on the base plate 31 and are connected with the plurality of groups of friction plates 32 respectively, and are used for adjusting the pressure between the base plate 31 and the friction plates 32. The friction plates 32 are arranged on the two sides of the base plate 31, which can improve the friction energy dissipation effect generated by the friction damper 3, and further reduce the seismic energy.
[0029] Please refer to Figure 4 , Figure 4 It is a structural diagram of the pre-tightening force connecting mechanism in the damping structure of the assembled steel structure beam-column joint of the utility model. In an embodiment, the two friction plates 32 of each group are a first friction plate and a second friction plate respectively, the pre-tightening force connecting mechanism 33 includes a bolt 331, a first pressing plate 332, a second pressing plate 333, a butterfly spring 334, a sleeve 335 and a nut 336, the bolt 331 is sequentially threaded through the first pressing plate 332, the first friction plate, the base plate 31, the second friction plate, the second pressing plate 333, the butterfly spring 334 and the sleeve 335 and is threadedly connected with the nut 336. The position of the nut 336 on the bolt 331 is adjusted to adjust the elastic force generated by the butterfly spring 334, so as to adjust the pressure between the first friction plate, the second friction plate and the base plate 31. In an embodiment, a gasket 337 is arranged between the sleeve 335 and the butterfly spring 334, between the butterfly spring 334 and the second pressing plate 333 and between the first pressing plate 332 and the head of the bolt 331. The setting can uniformly distribute the pressure and prevent the pressure from being concentrated.
[0030] Please refer to Figure 5 , Figure 5 It is the structural diagram of mounting plate in the damping structure of the assembled steel structure beam column joint. In an embodiment, the mounting seat 1 comprises a mounting plate 11 and a connecting plate 12 vertically arranged on the mounting plate 11, and the connecting plate 12 is detachably connected with the diagonal brace 2. The mounting plate 11 is used for connecting with the structural beam 4 or the structural column 5, and the connecting plate 12 is used for detachably connecting with the diagonal brace 2, so as to facilitate the mounting of the diagonal brace 2 and the steel plate damper on the connecting joint of the structural beam 4 and the structural column 5. Further, the connecting plate 12 and the diagonal brace 2 are connected by bolts, which is convenient and fast to disassemble and assemble and reliable in connection. In an embodiment, a plurality of through holes 13 are formed on the mounting plate 11. By the plurality of through holes 13 on the mounting plate 11, the mounting plate 11 and the structural beam 4 or the structural column 5 can be connected by bolts, which is convenient and fast to disassemble and assemble and reliable in connection.
[0031] The above is only a preferred embodiment of the present application, and does not limit the present application in any form. Any simple modification, equivalent change and modification of the above embodiment according to the technical essence of the present application still belongs to the scope of the technical scheme of the present application.
Claims
1. A prefabricated steel structure beam-column joint damping structure, characterized in that, include: Two mounting brackets, one for installation on structural beams and the other for installation on structural columns; Two diagonal braces are provided, spaced apart, and the two ends of each diagonal brace are detachably connected to the two mounting bases respectively. A friction damper includes two base plates and multiple friction plates. The two base plates are respectively connected to two diagonal braces. The two ends of each friction plate are respectively in contact with the two base plates. The base plates are provided with a preload connection assembly connected to the friction plates for adjusting the pressure between the base plates and the friction plates.
2. The prefabricated steel structure beam-column joint damping structure according to claim 1, characterized in that, The friction pads are arranged in pairs, with the two friction pads in each pair located on opposite sides of the substrate. The friction pads are spaced apart along the length of the substrate. The pre-tightening connection assembly includes multiple pre-tightening connection mechanisms, each corresponding to one of the friction pads. The multiple pre-tightening connection mechanisms are disposed on the substrate and connected to the friction pads to adjust the pressure between the substrate and the friction pads.
3. The prefabricated steel structure beam-column joint damping structure according to claim 2, characterized in that, The two friction plates in each group are the first friction plate and the second friction plate, respectively. The preload connection mechanism includes a bolt, a first pressure plate, a second pressure plate, a butterfly spring, a sleeve, and a nut. The bolt passes through the first pressure plate, the first friction plate, the base plate, the second friction plate, the second pressure plate, the butterfly spring, and the sleeve in sequence and is then threadedly connected to the nut.
4. The prefabricated steel structure beam-column joint damping structure according to claim 3, characterized in that, Gaskets are provided between the sleeve and the butterfly spring, between the butterfly spring and the second pressure plate, and between the first pressure plate and the head of the bolt.
5. The prefabricated steel structure beam-column joint damping structure according to claim 1, characterized in that, The mounting base includes a mounting plate and a connecting plate vertically mounted on the mounting plate, the connecting plate being detachably connected to the diagonal brace.
6. The prefabricated steel structure beam-column joint damping structure according to claim 5, characterized in that, The mounting plate has multiple through holes.