Fabricated composite wall body and frame column cylinder type friction-metal composite damping node

Abstract

The invention discloses a cylinder type friction-metal composite damping node for an assembly type laminated wall body and a frame column. The cylinder type friction-metal composite damping node comprises a column embedded part, a wall end connecting part, a cylinder type friction-metal composite damper connected between the embedded part and the wall end connecting part, and a steel bar truss clamped in the wall end connecting part, the barrel type friction-metal composite damper comprises a damping barrel shell, a friction damping piece and a metal damping piece, wherein the friction damping piece and the metal damping piece are arranged in the damping barrel shell. The friction damping piece is in sliding connection with a steel rod of the metal damping piece through a transmission plate. The seismic mitigation and isolation technology is applied to the assembly type overlapped outer enclosure wall body, a multi-stage energy dissipation mechanism and a multi-element collaborative energy dissipation structure are combined, seismic energy is effectively consumed, seismic damage to the outer enclosure wall body is relieved or avoided, and the service life of the outer enclosure wall body is prolonged; good mechanical properties and anti-fatigue performance can be achieved, earthquake force of different levels can be dealt with, and great significance is achieved for improving the overall earthquake resistance toughness of the building and the earthquake resistance and disaster prevention capacity of urban and rural buildings.

Description

Technical Field

[0001] The invention relates to the technical field of building structures, in particular to an assembled composite wall and frame column tube type friction-metal composite damping node. Background Art

[0002] In the frame structure, the external enclosure wall plays an important dual role of enclosure and thermal insulation. Common external enclosure walls include autoclaved aerated concrete precast walls, composite walls and ALC wall panels. Autoclaved aerated concrete precast walls [Zhou Xiaojie, Cheng Changyun, Du Jinpeng, et al. Experimental study on seismic performance of autoclaved aerated concrete block masonry infill wall frame structure [J]. World Earthquake Engineering, 2022, 38(02): 46-57.], composite walls [Bian Wenjun, Fan Li, Li Shengqi. Effects of prefabricated composite wall panels with different connection methods on the seismic performance of frames [J]. Journal of Building Structures, 2020, 41(S1):196-203.] and ALC wall panels [Wang Bo, Wang Jingfeng, Li Xiang, et al. Seismic test and numerical simulation of steel tube concrete frame filled with ALC wall panels [J]. China Civil Engineering Journal, 2014, 47(S2):56-61] Prefabricated walls are mostly connected by clamping the wall and the main structure after tightening. These rigid connection methods can improve the bearing capacity and stiffness of the main structure, but will reduce the deformation and energy dissipation capacity of the structure. Due to the large difference in strength and deformation between the outer protective wall and the main structure, the two cannot deform synergistically under the action of earthquakes, resulting in serious damage to the outer protective wall itself in the earthquake. The damage to the wall and the connection nodes also causes the wall to collapse and fall off out of the plane. The earthquake damage shows that the damage and collapse of the outer protective wall is one of the important reasons for casualties and property losses, and it faces many problems such as difficulty, long period and high cost in post-earthquake repair.

[0003] With the development of prefabricated buildings, it has become a trend for prefabricated exterior walls to replace traditional block masonry. Prefabricated composite walls draw on the concept of prefabricated composite floors. They are prefabricated exterior walls formed by prefabricated layers and post-cast layers. They have the advantages of good integrity, energy saving, environmental protection, and integrated structural insulation. However, they still face the problem of serious earthquake damage when connected to the main structure using traditional node connections. Summary of the invention

[0004] In order to overcome the shortcomings of the above-mentioned prior art, the purpose of the present invention is to provide a prefabricated composite wall and frame column tube friction-metal composite damping node, which adopts a displacement-related multi-stage energy dissipation mechanism to meet the multi-level energy dissipation requirements of the structure, change the force transmission path between the wall and the frame structure, thereby improving the seismic resistance of the frame-filled wall structure and reducing the economic losses caused by earthquake damage.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A prefabricated composite wall and frame column cylindrical friction-metal composite damping node includes a column embedded part 1, a wall end connector 3, a cylindrical friction-metal composite damper 2 connected between the embedded part 1 and the wall end connector 3, and a steel truss 4 clamped in the wall end connector 3.

[0007] The cylindrical friction-metal composite damper 2 comprises a damping cylindrical shell 250 and a friction damping member 210 and a metal damping member 240 disposed in the damping cylindrical shell 250 . The friction damping member 210 is slidably connected to a steel rod 246 of the metal damping member 240 via a transmission plate 241 .

[0008] The column embedded part 1 includes a column embedded part steel bar seat 101, which is in a cross shape. The middle of the column embedded part steel bar seat 101 is fixedly connected to the middle of the column embedded part steel plate 103 by a connecting rod 105. Bolt holes 104 are arranged at the four corners of the column embedded part steel plate 103. The sleeve 102 is fixed to the near cylindrical surface of the column embedded part steel plate 103 and is adapted to the bolt hole 104. The sleeve 102 adopts an internal thread, and the center of the bolt hole 104 is 5 to 8 mm away from both sides of the corner of the column embedded part steel plate 103.

[0009] The damping cylinder shell 250 includes an upper cylinder shell 220 and a lower cylinder shell 230, and the lower cylinder shell 230 includes a lower cylinder shell L-shaped steel plate 232, one end of the lower cylinder shell L-shaped steel plate 232 is fixedly connected to the lower cylinder shell near column end steel plate 231, and the other end is fixedly connected to the lower cylinder shell near wall end steel plate 235, a through hole 236 is provided in the middle of the lower cylinder shell near column end steel plate 231, and protrusions 237 are provided at the upper and lower ends of the lower cylinder shell near wall end steel plate 235, and a connecting hole 238 is provided in the middle of the protrusion 237, a first strip sliding groove 233 is provided in the middle of the two inner side surfaces of the lower cylinder shell L-shaped steel plate 232 along the length direction, and a plurality of buckles 234 are equidistantly provided on the edge of the lower cylinder shell L-shaped steel plate 232.

[0010] The upper cylinder shell 220 includes an upper cylinder shell L-shaped steel plate 222, and a second strip sliding groove 223 is provided in the middle of the two inner sides of the upper cylinder shell L-shaped steel plate 222 along the length direction. A plurality of snap holes 221 are equidistantly provided on the upper cylinder shell L-shaped steel plate 222 and on the outer side of the second strip sliding groove 223.

[0011] The buckle 234 of the lower cylinder shell L-shaped steel plate 232 is matched with the buckle hole 221 on the upper cylinder shell L-shaped steel plate 222, and the first strip sliding groove 233 and the second strip sliding groove 223 have the same length, width and depth.

[0012] The friction damping member 210 includes a friction damping member steel plate 211, one end of a transmission rod 213 is fixedly connected in the middle of the damping member steel plate 211, the other end of the transmission rod 213 passes through the through hole 236 in the middle of the steel plate 231 near the column end of the lower cylinder shell and extends into the damping cylinder shell 250, and is connected to the transmission plate 241, a plurality of limit cylinders 215 are respectively provided on the four sides of the transmission rod 213, each limit cylinder 215 is provided with a corresponding force spring 214, one end of the force spring 214 is fixed on the transmission rod 213, and the other end is connected to the friction plate 212, and the friction plates 212 on the four sides are respectively adapted to be connected with the first strip sliding groove 233 and the second strip sliding groove 223.

[0013] The size of the friction damping component steel plate 211 is the same as that of the column embedded component steel plate 103. Threaded holes 216 of the same diameter are opened at the four corners of the friction damping component steel plate 211 corresponding to the bolt holes 104. The threaded holes 216, the bolt holes 104 and the sleeve 102 are connected by bolts.

[0014] The metal damping member 240 includes a metal damping member middle plate 243, the end of the metal damping member middle plate 243 near the wall is fixedly connected to the steel plate 235 near the wall of the lower cylinder shell, and metal damping member outer plates 242 are respectively provided on both sides of the metal damping member middle plate 243, and lead plates 244 are embedded between the metal damping member middle plate 243 and the metal damping member outer plates 242 on both sides and fixedly connected, and the upper and lower sides of the metal damping member outer plates 242 on both sides near the column end are respectively fixedly connected to one end of a steel rod 246, and the other end of the steel rod 246 passes through the first reset disc spring 245, the transmission plate 241 and the second reset disc spring 247, and a limit plate 248 is provided at the end.

[0015] The transmission plate 241 is provided with through holes 249 at four corners, and the through holes 249 are adapted to be slidably connected with the steel rods 246 .

[0016] The wall end connector 3 includes a ribbed steel plate 301, and first strip holes 307 are provided on both sides of the near-column end steel plate of the ribbed steel plate 301. The first strip holes 307 are connected to the connection holes 238 of the near-wall end steel plate 235 of the lower cylinder shell through bolts. First strip holes 304 are provided on both sides of the near-wall end steel plate 306 of the ribbed steel plate. The first strip holes 304 are connected to the second strip holes 305 similarly provided on both sides of the wall end connector steel plate 303 through bolts, and clamp the steel truss 4.

[0017] The steel plate at the end near the wall of the ribbed steel plate 301 has an inclination angle of 65°-75°, and the inclination angle is consistent with the angle of the clamped steel bar truss 4.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. The cylindrical friction-metal composite damping node is connected to the frame column through the column embedded part 1, and is connected to the wall through the wall end connector 3 and the steel truss 4. The cylindrical friction-metal composite damper 2 is connected between the embedded part 1 and the wall end connector 3. After the construction of the assembled wall and the frame column, the device is hidden in the wall as a whole, which does not affect the normal use space in the building. In addition, the steel used has a high degree of industrialization, is easy to obtain, and is economical and reliable.

[0020] 2. This cylindrical friction-metal composite damping node is a displacement-related energy dissipator, which organically combines the two energy dissipation mechanisms of friction and metal through the friction damping member 210 and the metal damping member 240. The friction damping member 210 drives the reset disc spring 245 to deform and dissipate energy along the steel rod 246, and the metal damping member 240 drives the lead plate 244 to shear and deform to dissipate energy, thereby achieving the design requirements of multi-component collaborative work and multi-level energy dissipation mechanism.

[0021] 3. Under the action of frequent earthquakes, due to the existence of the initial static friction of the friction damping element, the friction damping element 210 does not slide to dissipate energy, and the energy-dissipating element does not participate in the work, but only provides a certain connection stiffness, which not only utilizes the favorable contribution of the composite wall stiffness to the frame structure, but also ensures the anti-overturning ability outside the structural plane.

[0022] 4. The initial static friction force of the friction damping member can be adjusted by changing the elastic coefficient or length of the reset disc spring according to the building grade and the seismic and wind resistance requirements of different regions, ensuring that the connection stiffness that meets the design requirements can be provided under wind loads or frequent earthquakes, with good safety reserves and good durability.

[0023] 5. Under the action of the earthquake fortification, the horizontal seismic force acting on the structure exceeds the initial static friction force of the friction damping element 210, the friction damping element 210 begins to slide to consume energy, and the reset disc spring axially tensile and compressive deformation consumes energy, wherein the reset disc spring provides the friction damping element 210 with a self-resetting function and has good mechanical properties and anti-fatigue properties.

[0024] 6. Under the action of rare earthquakes, the structure undergoes a large horizontal displacement, exceeding the displacement limit of the friction damping element 210. The displacement of the structure exceeding the friction damping element 210 is transmitted to the metal damping element 240 through the steel rod 246. The lead plate 244 in the metal damping element 240 begins to shear and deform to consume energy. At this time, the friction and metal energy dissipation mechanisms work together, and the energy dissipation mechanism is clear and the structure is reasonable.

[0025] In summary, the cylindrical friction-metal composite damper of the present invention is manufactured in a factory and is dry-connected on site with bolts to form a column-wall node, which is convenient to construct; the structure combines a multi-stage energy dissipation mechanism and coordinated energy dissipation of multiple elements, and can cope with horizontal earthquakes of different degrees to meet multi-level energy dissipation requirements; the energy dissipation mechanism of the cylindrical friction-metal composite damping node is clear, the structure is reasonable, it has good mechanical properties and fatigue resistance, it has a good safety reserve, and good durability. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0027] Figure 2 It is a schematic diagram of the column embedded part of the present invention.

[0028] Figure 3 It is a schematic diagram of the overall structure of the cylindrical friction-metal composite damper of the present invention.

[0029] Figure 4 It is a schematic diagram of the internal structure of the cylindrical friction-metal composite damper of the present invention.

[0030] Figure 5 It is a schematic diagram of the friction damping member of the present invention.

[0031] Figure 6 It is a schematic diagram of the upper cylinder shell of the present invention.

[0032] Figure 7 It is a schematic diagram of the lower cylinder shell of the present invention.

[0033] Figure 8 It is a schematic diagram of the metal damping member of the present invention.

[0034] Fig. 9 It is a schematic diagram of the wall end connecting piece of the present invention.

[0035] Among them, 1-column embedded parts; 2-cylindrical friction-metal composite damper; 3-wall end connector; 4-steel truss; 101-column embedded parts steel seat; 102-sleeve; 103-column embedded parts steel plate; 104-bolt hole; 105-connecting rod; 210-friction damper; 211-friction damper steel plate; 212-friction plate; 213-transmission rod; 214-force spring; 215-limiting cylinder; 216-threaded hole; 220-upper cylinder shell; 221-buckle hole; 222-upper cylinder shell L-shaped steel plate; 223-second strip sliding groove; 230-lower cylinder shell; 231-lower cylinder shell near column end steel plate; 232-lower cylinder shell L-shaped steel plate; 233- The first strip sliding groove; 234-clip; 235-steel plate near the wall end of the lower cylinder shell; 236-through hole; 237-protrusion; 238-connecting hole; 240-metal damping member; 241-transmission plate; 242-outer plate of the metal damping member; 243-middle plate of the metal damping member; 244-lead plate; 245-reset disc spring; 246-steel rod; 247-second reset disc spring; 248-limiting plate; 249-through hole; 250-damping cylinder shell; 301-ribbed steel plate; 302-M8 bolt; 303-wall end connecting piece steel plate; 304-second strip hole; 305-third strip hole; 306-steel plate near the wall end of the ribbed steel plate; 307-first strip hole. DETAILED DESCRIPTION

[0036] The present invention will be further described below in conjunction with the accompanying drawings.

[0037] See also Figure 1 A prefabricated composite wall and frame column cylindrical friction-metal composite damping node includes a column embedded part 1, a wall end connector 3, a cylindrical friction-metal composite damper 2 connected between the embedded part 1 and the wall end connector 3, and a steel truss 4 clamped in the wall end connector 3.

[0038] See also Figure 4 The cylindrical friction-metal composite damper 2 includes a damping cylindrical shell 250 and a friction damping member 210 and a metal damping member 240 arranged in the damping cylindrical shell 250. The friction damping member 210 is slidably connected to a steel rod 246 of the metal damping member 240 through a transmission plate 241.

[0039] See also Figure 2 The column embedded part 1 includes a column embedded part steel bar seat 101, the middle of the column embedded part steel bar seat 101 is fixedly connected to the middle of the column embedded part steel plate 103 by a connecting rod 105, the four corners of the column embedded part steel plate 103 are provided with bolt holes 104, the sleeve 102 is fixed to the near cylindrical surface of the column embedded part steel plate 103, and is adapted to the bolt holes 104.

[0040] The column embedded part steel bar seat 101 is in a cross shape, and the diameters of the steel bars used in the column embedded part steel bar seat 101 and the connecting rod 105 are both 8-10 mm; the bolt hole 104 adopts an M6 bolt hole specification, the sleeve 102 adopts an M6 internal thread, and the center of the bolt hole 104 is 5-8 mm away from both sides of the corner of the column embedded part steel plate 103. The size of the column embedded part steel plate 103 is 80 mm×80 mm×5-8 mm, which is compatible with the friction damping part steel plate 211.

[0041] See also Figure 3 , Figure 4 The damping cylinder shell 250 includes an upper cylinder shell 220 and a lower cylinder shell 230, and the lower cylinder shell 230 includes a lower cylinder shell L-shaped steel plate 232, one end of the lower cylinder shell L-shaped steel plate 232 is fixedly connected to the lower cylinder shell near column end steel plate 231, and the other end is fixedly connected to the lower cylinder shell near wall end steel plate 235, a through hole 236 is provided in the middle of the lower cylinder shell near column end steel plate 231, and protrusions 237 are provided at the upper and lower ends of the lower cylinder shell near wall end steel plate 235, and a connecting hole 238 is provided in the middle of the protrusion 237, a first strip sliding groove 233 is provided in the middle of the two inner side surfaces of the lower cylinder shell L-shaped steel plate 232 along the length direction, and a plurality of buckles 234 are equidistantly provided on the edge of the lower cylinder shell L-shaped steel plate 232, and the inner cross-sectional size of the cylinder is 60mm×60mm, and the thickness is 3mm.

[0042] See also Figure 6 The upper cylinder shell 220 includes an upper cylinder shell L-shaped steel plate 222, and a second strip sliding groove 223 is provided in the middle of the two inner sides of the upper cylinder shell L-shaped steel plate 222 along the length direction. A plurality of snap holes 221 are equidistantly provided on the upper cylinder shell L-shaped steel plate 222 and on the outer side of the second strip sliding groove 223.

[0043] The upper cylinder shell L-shaped steel plate 222 has a thickness of 3mm and a length of 230mm. The buckle holes 221 have a size of 5mm×8mm×3mm, and the size and number are compatible with the buckles 234. The upper cylinder shell L-shaped steel plate has a thickness of 3mm and a length of 230mm. The inner cross-sectional size of the cylinder is 60mm×60mm. The first strip groove 233 and the second strip groove 223 have a depth of 1mm.

[0044] See also Figure 7 The buckle 234 of the lower cylinder shell L-shaped steel plate 232 is matched with the buckle hole 221 on the upper cylinder shell L-shaped steel plate 222, and the length, width and depth of the first strip sliding groove 233 and the second strip sliding groove 223 are consistent.

[0045] The lower cylinder shell near column end steel plate 231 and the lower cylinder shell near wall end steel plate 235 have a cross-sectional size of 60mm×60mm, a thickness of 3mm, and a connection hole 238 between the protrusion 237 of 8mm.

[0046] See also Figure 4 , Figure 5The friction damping member 210 includes a friction damping member steel plate 211, one end of a transmission rod 213 is fixedly connected in the middle of the damping member steel plate 211, and the transmission rod 213 has a size of 20mm×20mm×100mm. The other end of the transmission rod 213 passes through the through hole 236 in the middle of the steel plate 231 near the column end of the lower cylinder shell and extends into the damping cylinder shell 250, and is connected to the transmission plate 241, and the transmission plate 241 has a size of 40mm×40mm×2mm. A plurality of limiting cylinders 215 are respectively arranged on the four sides of the transmission rod 213, and each limiting cylinder 215 is provided with a corresponding force spring 214. One end of the force spring 214 is fixed on the transmission rod 213, and the other end is connected to the friction plate 212. The length, width and thickness of the friction plate 212 are 20mm×20mm×2mm. The friction plates 212 on the four sides are respectively adapted and connected to the first strip sliding groove 233 and the second strip sliding groove 223.

[0047] The length, width and thickness of the friction damping component steel plate 211 are 80mm×80mm×5~8mm, which is the same size as the column embedded component steel plate 103. Threaded holes 216 of the same diameter are opened at the four corners of the friction damping component steel plate 211 corresponding to the bolt holes 104. The threaded holes 216, the bolt holes 104 and the sleeve 102 are connected by bolts.

[0048] See also Figure 8 The metal damping member 240 includes a metal damping member middle plate 243, the metal damping member middle plate 243 is fixedly connected to the wall end of the lower cylinder shell near the wall end steel plate 235, and the metal damping member outer plate 242 is respectively provided on both sides of the metal damping member middle plate 243. The metal damping member middle plate 243 has a size of 115mm×40mm×12mm, and a 75mm×40mm×4mm groove is opened on both sides 10mm away from one end. The metal damping member outer plate 242 has a size of 95mm×40mm×8mm, and a 75mm×40mm×4mm groove is opened on one side 10mm away from the end. mm×4mm groove, the lead plate 244 is embedded in the groove between the metal damping member middle plate 243 and the metal damping member outer plates 242 on both sides and fixedly connected, the lead plate 244 has a size of 75mm×40mm×12mm, and is welded in the grooves of the metal damping member outer plates 242 and the metal damping member middle plate 243; the metal damping member outer plates 242 on both sides are fixedly connected to one end of the steel rod 246 on the upper and lower sides near the column end, and the other end of the steel rod 246 passes through the first reset disc spring 245, the transmission plate 241 and the second reset disc spring 247, and the end is provided with a limit plate 248. The initial static friction of the friction damping member can be changed by changing the elastic coefficient or length of the reset disc spring according to the building grade and the earthquake resistance and wind resistance requirements of different regions.

[0049] The transmission plate 241 is provided with through holes 249 at four corners, and the through holes 249 are adapted to be slidably connected with the steel rods 246 .

[0050] See also Fig. 9 The wall end connector 3 includes a ribbed steel plate 301, and first strip holes 307 are provided on both sides of the near-column end steel plate of the ribbed steel plate 301, and the size of the first strip hole 307 is 20mm×8mm. The first strip hole 307 is connected to the connection hole 238 of the near-wall end steel plate 235 of the lower cylinder shell through bolts, and second strip holes 304 are provided on both sides of the near-wall end steel plate 306 of the ribbed steel plate, and the size of the second strip hole 304 is 20mm×6mm. The second strip hole 304 is connected to the third strip hole 305 similarly provided on both sides of the wall end connector steel plate 303 by bolts, and clamps the steel truss 4, and the size of the third strip hole 305 is 20mm×6mm.

[0051] The steel plate at the end near the wall of the ribbed steel plate 301 has an inclination angle of 65°-75°, and the inclination angle is consistent with the angle of the clamped steel bar truss 4.

[0052] The steel bar truss 4 is a common steel bar structure inside the assembled composite wall panel.

[0053] The working principle of the present invention is:

[0054] When connecting the cylindrical friction-metal composite damping node, first, when supporting the formwork, locate the position of the column embedded part 1 on the column formwork, and open a hole on the column formwork corresponding to the M6 ​​bolt hole 104, pass the M6 ​​bolt through the hole in the column formwork and temporarily connect it with the M6 ​​bolt hole 104, so as to complete the positioning of the column embedded part 1, and then pour the column concrete and remove the formwork for maintenance; secondly, make the cylindrical friction-metal composite damper 2, install the friction damping part 210 and the metal damping part 240 into the lower cylindrical shell 230 according to the designed connection method and designed position, and then fix the upper cylindrical shell 220 and the lower cylindrical shell 230 together through the buckle 234, and complete the cylindrical friction-metal composite The damper 2 is made; then, after the assembled composite wall panel is temporarily fixed in the frame, the cylindrical friction-metal composite damper 2 is connected to the column embedded part 1 by bolts through the holes and M6 bolt holes 104 at the corners of the friction damper steel plate 211; finally, the ribbed steel plate 301 is installed through the holes of the steel plate 235 near the wall end of the lower shell through the M8 bolts 302 to complete the connection with the cylindrical friction-metal composite damper 2, and then the ribbed steel plate 301 and the wall end connecting piece steel plate 303 are clamped with the steel truss 4 through the M6 ​​bolts 304 holes to complete the assembled composite wall and frame column cylindrical friction-metal composite damping node. Finally, the post-cast layer of the composite wall panel is poured.

[0055] When under the action of frequent earthquakes (small earthquakes), the earthquake action does not exceed the static friction of the friction damping member 210, and the friction damping member 210 does not slide to dissipate energy. At this time, it is approximately a rigid connection, providing a certain connection stiffness, thereby ensuring the beneficial contribution of the wall stiffness to the frame structure.

[0056] When under the action of a fortified earthquake (medium earthquake), the friction damping element 210 begins to dissipate energy by sliding friction in the damping shell 250, while driving the reset disc spring 245 to deform and dissipate energy along the steel rod 246. The reset disc spring 245 provides a force in the opposite direction of the earthquake action to the transmission plate 241, thereby assisting the friction damping element 210 in self-resetting.

[0057] When under the action of a rare earthquake (a major earthquake), the structure has a large lateral displacement, and the sliding of the friction damping element 210 is constrained by the limit plate 248. The unconsumed seismic effect is transmitted to the metal damping element 240 through the steel rod, driving the lead plate 244 to shear and deform to consume energy. At this time, the friction damping element 210 and the metal damping element 240 work together.

[0058] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, a person skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution, which should be included in the scope of the claims of the present invention.

Claims

1. A cylindrical friction-metal composite damping node for an assembled composite wall and a frame column, comprising a column embedded part (1), a wall end connecting part (3), a cylindrical friction-metal composite damper (2) connected between the embedded part (1) and the wall end connecting part (3), and a steel truss (4) clamped in the wall end connecting part (3).

2. The assembled composite wall and frame column tube friction-metal composite damping node according to claim 1 is characterized in that: The cylindrical friction-metal composite damper (2) comprises a damping cylindrical shell (250) and a friction damping member (210) and a metal damping member (240) arranged in the damping cylindrical shell. The friction damping member (210) is slidably connected to a steel rod (246) of the metal damping member (240) via a transmission plate (241).

3. The assembled composite wall and frame column tube friction-metal composite damping node according to claim 1 is characterized in that: The column embedded part (1) comprises a column embedded part steel bar seat (101), the column embedded part steel bar seat (101) is in a cross shape, the middle of the column embedded part steel bar seat (101) is fixedly connected to the middle of the column embedded part steel plate (103) through a connecting rod (105), the four corners of the column embedded part steel plate (103) are provided with bolt holes (104), the sleeve (102) is fixed to the near-cylindrical surface of the column embedded part steel plate (103) and is matched with the bolt hole (104), the sleeve (102) adopts an internal thread, and the center of the bolt hole (104) is 5 to 8 mm away from both sides of the corner of the column embedded part steel plate (103).

4. The assembled composite wall and frame column tube friction-metal composite damping node according to claim 1 is characterized in that: The damping cylinder shell (250) comprises an upper cylinder shell (220) and a lower cylinder shell (230), wherein the lower cylinder shell (230) comprises a lower cylinder shell L-shaped steel plate (232), wherein one end of the lower cylinder shell L-shaped steel plate (232) is fixedly connected to a lower cylinder shell near-column end steel plate (231), and the other end is fixedly connected to a lower cylinder shell near-wall end steel plate (235), wherein a through hole (236) is provided in the middle of the lower cylinder shell near-column end steel plate (231), wherein upper and lower ends of the lower cylinder shell near-wall end steel plate (235) are provided with protrusions (237), wherein a connecting hole (238) is provided in the middle of the protrusions (237), wherein a first strip-shaped sliding groove (233) is provided in the middle of two inner side surfaces of the lower cylinder shell L-shaped steel plate (232) along the length direction, and a plurality of buckles (234) are equidistantly provided on the edge of the lower cylinder shell L-shaped steel plate (232).

5. The assembled composite wall and frame column tube friction-metal composite damping node according to claim 4 is characterized in that: The upper cylinder shell (220) comprises an upper cylinder shell L-shaped steel plate (222), a second strip-shaped sliding groove (223) is provided in the middle of the two inner side surfaces of the upper cylinder shell L-shaped steel plate (222) along the length direction, and a plurality of snap holes (221) are equidistantly provided on the upper cylinder shell L-shaped steel plate (222) and on the outer side of the second strip-shaped sliding groove (223).

6. The assembled composite wall and frame column tube friction-metal composite damping node according to claim 4 or 5, characterized in that: The buckle (234) of the lower cylinder shell L-shaped steel plate (232) is matched with the buckle hole (221) on the upper cylinder shell L-shaped steel plate (222), and the first strip sliding groove (233) and the second strip sliding groove (223) have the same length, width and depth.

7. The assembled composite wall and frame column tube friction-metal composite damping node according to claim 1 is characterized in that: The friction damping member (210) comprises a friction damping member steel plate (211), one end of a transmission rod (213) is fixedly connected in the middle of the damping member steel plate (211), the other end of the transmission rod (213) passes through a through hole (236) in the middle of a steel plate (231) near the column end of the lower cylinder shell, extends into the damping cylinder shell (250), and is connected to the transmission plate (241), a plurality of limiting cylinders (215) are respectively arranged on four sides of the transmission rod (213), each limiting cylinder (215) is provided with a matching force spring (214), one end of the force spring (214) is fixed to On the transmission rod (213), the other end is connected to the friction plate (212), and the friction plates (212) on four sides are respectively matched and connected with the first strip sliding groove (233) and the second strip sliding groove (223); the length, width and thickness of the friction damping component steel plate (211) are the same as those of the column embedded component steel plate (103); threaded holes (216) of the same diameter are opened at the positions of the four corners of the friction damping component steel plate (211) corresponding to the bolt holes (104), and the threaded holes (216), the bolt holes (104) and the sleeve (102) are connected by bolts.

8. The assembled composite wall and frame column tube friction-metal composite damping node according to claim 1 is characterized in that: The metal damping member (240) comprises a metal damping member middle plate (243), the metal damping member middle plate (243) is fixedly connected to the wall end steel plate (235) of the lower cylinder shell near the wall, and metal damping member outer plates (242) are respectively provided on both sides of the metal damping member middle plate (243), and lead plates (244) are embedded between the metal damping member middle plate (243) and the metal damping member outer plates (242) on both sides and fixedly connected, and the metal damping member outer plates (242) on both sides are respectively fixedly connected to one end of a steel rod (246) on the upper and lower sides of the column end, and the other end of the steel rod (246) passes through the first reset disc spring (245), the transmission plate (241) and the second reset disc spring (247), and a limit plate (248) is provided at the end; the transmission plate (241) is provided with through holes (249) at four corners, and the through holes (249) are adapted to be slidably connected with the steel rod (246).

9. The assembled composite wall and frame column tube friction-metal composite damping node according to claim 1 is characterized in that: The wall end connector (3) comprises a ribbed steel plate (301), wherein first strip holes (307) are provided on both sides of the steel plate near the column end of the ribbed steel plate (301), and the first strip holes (307) are connected to the connection holes (238) of the steel plate near the wall end of the lower cylinder shell (235) through bolts, and first strip holes (304) are provided on both sides of the steel plate near the wall end (306) of the ribbed steel plate, and the first strip holes (304) are connected to the second strip holes (305) similarly provided on both sides of the wall end connector steel plate (303) through bolts, and clamp the steel truss (4).

10. The assembled composite wall and frame column tube friction-metal composite damping node according to claim 9 is characterized in that: The steel plate at the end of the ribbed steel plate (301) near the wall has an inclination angle of 65°-75°, and the inclination angle is consistent with the angle of the clamped steel bar truss (4).

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