CN216641012U - Buckling restrained corrugated pipe energy dissipation supporting device based on ring spring self-resetting - Google Patents

Abstract

The utility model relates to a buckling restrained corrugated pipe energy dissipation supporting device based on ring spring self-resetting, which comprises an outer sleeve, a high-strength steel ring spring group, a middle sleeve, a corrugated pipe and an inner sleeve, wherein the outer sleeve, the high-strength steel ring spring group, the middle sleeve, the corrugated pipe and the inner sleeve are sequentially and coaxially sleeved from outside to inside; the one end fixed connection of bellows is in the blind end of well sheathed tube, and the blind end at the outer tube is fixed to the other end, and interior sleeve pipe one end is fixed at the blind end of outer tube, possesses stable high-efficient power consumption ability and from reset function.

Description

Buckling restrained corrugated pipe energy dissipation supporting device based on ring spring self-resetting

Technical Field

The utility model relates to an energy dissipation support device, in particular to a buckling restrained corrugated pipe energy dissipation support device based on ring spring self-resetting, and belongs to the technical field of shock absorption (vibration) and shock isolation (vibration).

Background

With the development of the passive damping control technology of the structure, various types of damping and energy-consuming devices have been developed at present. The buckling restrained brace is one of shock-absorbing devices which are widely applied at present, and has the advantages of simple design parameters and low manufacturing cost. However, the traditional buckling restrained brace has larger residual displacement after earthquake, so that the structural repairability difficulty is increased, and the direct or indirect economic loss is greatly increased, so that the research on the buckling restrained brace with the self-resetting function has important significance.

The existing self-resetting buckling restrained brace has a plurality of structural forms and has the following problems that the self-resetting buckling restrained brace adopting prestressed tendons has insufficient deformation capacity under the action of strong shock; the shape memory alloy material is high in price, and the problems of temperature sensitivity, performance stability and the like need to be solved; the stroke provided by the belleville spring is short, no energy consumption capacity exists, and a large amount of welding work or assembling work is required; the existing self-resetting buckling-restrained brace has a complex structure and a complex installation process, and the energy consumption performance of the brace is weakened due to the consideration of the resetting performance.

SUMMERY OF THE UTILITY MODEL

Aiming at the problems in the prior art, the utility model provides a buckling restrained corrugated pipe energy dissipation supporting device based on ring spring self-resetting, which has stable and efficient energy dissipation capability and a self-resetting function.

In order to solve the problems, the utility model adopts the following technical scheme:

the utility model provides a bucking restraint bellows power consumption strutting arrangement based on ring spring is from outer tube, high-strength steel ring spring group, well sleeve pipe, bellows and interior sleeve pipe that coaxial cover was established in proper order from the extroversion, leave certain clearance between high-strength steel ring spring group and the outer tube, a pair of outer annular baffle of fixedly connected with on the inner wall of outer tube, a pair of interior annular baffle of fixedly connected with on the outer wall of well sleeve pipe, high-strength steel ring spring group sets up between a pair of outer annular baffle, the interval of a pair of interior annular baffle is greater than the interval between a pair of outer annular baffle, and the interior annular baffle that is located the homonymy is located the outside of outer annular baffle, outer tube one end is sealed, and the other end forms the through-hole that supplies well sleeve pipe to pass through the first end plate that inwards extends from the outer tube tip, well sleeve pipe pass the through-hole of outer tube and with first end plate sliding connection, one end of the middle sleeve is closed, the other end of the middle sleeve is open, the open end is connected with the inner wall of the outer sleeve in a sliding mode through a second end plate extending outwards from the end portion of the middle sleeve, and the distance between the first end plate and the second end plate is larger than the distance between the pair of inner annular baffles; one end of the corrugated pipe is fixedly connected to the closed end of the middle sleeve, the other end of the corrugated pipe is fixed to the closed end of the outer sleeve, and one end of the inner sleeve is fixed to the closed end of the outer sleeve.

Preferably, stiffening plates are arranged on the inner surface of the inner sleeve at intervals.

Preferably, the pre-pressure of the high-strength steel ring spring set is applied by a pair of outer annular baffles, and the gap between the pair of inner annular baffles in the pre-pressure state of the high-strength steel ring spring set is equal to the elastic deformation limit of the corrugated pipe.

Specifically, the corrugated pipe is fixedly connected with the closed end of the middle sleeve through a bolt.

Specifically, the middle sleeve and the second end plate are welded or integrally arranged, and the outer sleeve and the first end plate are welded or integrally arranged.

Preferably, the outer sleeve is formed by splicing two half sleeves with equal diameters and equal lengths. Splicing pieces are welded on the end surfaces of the two half sleeves of the outer sleeve and are spliced through bolts, and the splicing pieces are L-shaped steel or angle steel.

Preferentially, the closed end of the outer sleeve and the closed end of the middle sleeve are both provided with a connecting piece, and the design bearing capacity of the connecting piece is greater than the limit bearing capacity of the buckling restrained corrugated pipe energy dissipation supporting device.

Preferably, the outer sleeve, the middle sleeve, the inner annular baffle, the outer annular baffle, the first end plate, the second end plate, the splice and the connecting piece are all made of low-alloy high-strength Q355 steel.

Preferably, the high-strength steel ring spring set adopts 60Si2MnA with the yield strength of 1350MPa, the high-strength steel ring spring set is always in an elastic state during working, and the elastic deformation of the high-strength steel ring spring set is restored to realize self-resetting during unloading.

The utility model achieves the following technical effects:

the clearance between the high-strength steel ring spring group and the pair of inner annular baffles in the prepressing state of the ring spring self-resetting based buckling restrained corrugated pipe energy dissipation supporting device is equal to the elastic deformation limit of the corrugated pipe, so that energy dissipation can be realized by means of elastic deformation of the corrugated pipe under the action of a common earthquake, the clearance is not closed, and the high-strength steel ring spring group is not started; under the effect of a designed earthquake, the corrugated pipe dissipates energy through elastic-plastic deformation, the gap is closed, the high-strength steel ring spring set is started to play a reset function, and meanwhile friction between the inner ring and the outer ring of the high-strength steel ring spring set assists in energy dissipation, so that multiple energy dissipation modes in multiple stages can be realized.

Because the high-strength steel ring spring group in this application has applyed prestressing force, high-strength steel ring spring group all is in the pressurized state under drawing, the pressure load effect, plays from the reset action. The friction between the contact surfaces of the inner ring and the outer ring of the high-strength steel ring spring set exists in a compression state, the high-strength steel ring spring set can also play a role in energy consumption, and the energy consumption capability of the support is greatly enhanced.

The inner wall of the inner sleeve is provided with a longitudinal stiffening rib to prevent the inner sleeve from buckling; the telescopic structure, the inner sleeve and the middle sleeve provide lateral restraint for the corrugated pipe, so that the corrugated pipe is prevented from buckling, and energy consumption by utilizing elastic-plastic deformation of the corrugated pipe can be realized; a high-strength steel ring spring group is used as a resetting device of the energy dissipation support, and energy dissipation is assisted.

The design bearing capacity of the connecting piece is larger than the limit bearing capacity of the self-resetting buckling restrained corrugated pipe energy dissipation brace, so that the connecting piece keeps elasticity, the connecting piece is prevented from getting into yielding in advance, and the normal work of the self-resetting buckling restrained corrugated pipe energy dissipation brace is guaranteed.

All the sleeves, end plates and connecting pieces are made of low-alloy high-strength Q355 steel; the high-strength steel ring spring group adopts 60Si2MnA with the yield strength of 1350MPa, so that the high-strength steel ring spring group is always in an elastic state during working, and the elastic deformation recovery of the high-strength steel ring spring group during unloading is ensured to realize self-resetting.

Drawings

For a clearer explanation of the solution of the utility model, the following brief description of the drawings required for this solution is given:

fig. 1 is a schematic structural diagram of the present application.

Fig. 2 is a cross-sectional view a-a of fig. 1 of the present application.

Fig. 3 is a first view of the present application.

Fig. 4 is a second view of the present application.

Fig. 5 is a pressure state diagram of the present application.

Fig. 6 is a diagram of the application in tension.

Fig. 7 is a schematic diagram of the assembly process of the present application.

Fig. 8 is a cross-sectional view B-B of fig. 7 of the present application.

Fig. 9 is a cross-sectional view taken along line C-C of fig. 7 of the present application.

In the figure: 1. an outer sleeve; 2. a middle sleeve; 3. an inner sleeve; 4. a bellows; 5. an inner annular baffle; 6. an outer annular baffle; 7. a first circular end plate; 8. a second circular end plate; 9. a first end plate; 10. a second end plate; 11. a high-strength steel ring spring set; 12. a connecting member; 13. splicing pieces; 14. a bolt; 15. a stiffening rib. Wherein: 5a, a first inner annular baffle; 5b, a second inner annular baffle; 6a, a first outer annular baffle; 6b, a second outer annular baffle; 11a, an inner ring; 11b, an outer ring; 12a, a first connecting piece; 12b, a second connecting piece.

Detailed Description

The technical scheme of the utility model is further explained by the specific implementation mode through the attached drawings.

Referring to fig. 1 to 4, the buckling restrained corrugated pipe energy dissipation supporting device based on ring spring self-resetting comprises an outer sleeve 1, a high-strength steel ring spring group 11, a middle sleeve 2, a corrugated pipe 4 and an inner sleeve 3 which are sequentially coaxially sleeved from outside to inside, wherein the inner sleeve and the middle sleeve provide lateral restraint for the corrugated pipe to prevent the corrugated pipe from buckling, and energy consumption by elastic-plastic deformation of the corrugated pipe can be realized. A certain gap is left between the high-strength steel ring spring group 11 and the outer sleeve 1, the outer sleeve 1 is formed by splicing two half sleeves with equal diameter and equal length, when in splicing, pre-pressure is applied to the high-strength steel ring spring set 11 in advance, the pre-pressure of the high-strength steel ring spring set 11 is applied by a pair of outer annular baffles 6 (namely a first outer annular baffle 6a and a second outer annular baffle 6b), a gap between the high-strength steel ring spring set 11 and a pair of inner annular baffles 5 (namely a first inner annular baffle 5a and a second inner annular baffle 5b) in a pre-pressed state is equal to the elastic deformation limit of the corrugated pipe 4, a gap between the high-strength steel ring spring set and the pair of inner annular baffles in the pre-pressed state is equal to the elastic deformation limit of the corrugated pipe, therefore, under the action of a common earthquake, the energy consumption is carried out by the elastic deformation of the corrugated pipe, the gap is not closed, and the high-strength steel ring spring group is not started; under the effect of a designed earthquake, the corrugated pipe dissipates energy through elastic-plastic deformation, the gap is closed, the high-strength steel ring spring set is started to play a reset function, and meanwhile friction between the inner ring and the outer ring of the high-strength steel ring spring set assists in energy dissipation, so that multiple energy dissipation modes in multiple stages can be realized. And because the high-strength steel ring spring group applies prestress, as shown in fig. 5 and 6, the high-strength steel ring spring group is in a pressed state under the action of pulling and pressing loads, and plays a self-resetting role. The friction between the contact surfaces of the inner ring and the outer ring of the high-strength steel ring spring set exists in a compression state, the high-strength steel ring spring set can also play a role in energy consumption, and the energy consumption capability of the support is greatly enhanced. A pair of outer annular baffles 6 of fixedly connected with on the inner wall of outer tube 1, fixedly connected with one pair of inner annular baffle 5 on the outer wall of well sleeve 2, high-strength steel ring spring group 11 sets up between a pair of outer annular baffle 6, the interval of one pair of inner annular baffle 5 is greater than the interval between a pair of outer annular baffle 6, and the inner annular baffle 5 that is located the homonymy is located the outside of outer annular baffle 6, outer tube 1 one end is sealed, can adopt the circular end plate 8 of diameter and the equal second of outer tube to seal, and the other end forms the through-hole that supplies well sleeve 2 to pass through the first end plate 9 that inwards extends from outer tube 1 tip, well sleeve 2 passes the through-hole of outer tube 1 and with first end plate 9 sliding connection, well sleeve 2 one end is sealed, can adopt the circular end plate 7 of diameter and the equal first of outer tube to seal, the other end of the inner sleeve is open, the open end is connected with the inner wall of the outer sleeve 1 in a sliding way through a second end plate 10 extending outwards from the end part of the middle sleeve 2, and the distance between the first end plate 9 and the second end plate 10 is larger than the distance between the pair of inner annular baffles 5; one end of the corrugated pipe 4 is fixedly connected to the closed end of the middle sleeve 2, the other end of the corrugated pipe 4 is fixed to the closed end of the outer sleeve 1, one end of the inner sleeve 3 is fixed to the closed end of the outer sleeve 1, the closed end of the outer sleeve 1 and the closed end of the middle sleeve 2 are respectively provided with a connecting piece 12 (namely a first connecting piece 12a located at the closed end of the middle sleeve 2 and a second connecting piece 12b located at the closed end of the outer sleeve 1), the design bearing capacity of the connecting piece is larger than the ultimate bearing capacity of the self-resetting buckling restrained corrugated pipe energy-dissipation brace, the connecting piece is kept elastic, the connecting piece is prevented from being buckled in advance, and the normal work of the self-resetting buckling restrained corrugated pipe energy-dissipation brace is guaranteed. Stiffening plates 15 are longitudinally spaced to prevent buckling of the inner sleeve 3.

The working process of the buckling restrained corrugated pipe energy dissipation supporting device based on the ring spring self-resetting is shown in fig. 5 and 6, fig. 5 shows that an applied external load is pressure, and under the action of the external pressure, when the pressure is small, the inner sleeve 3 and the middle sleeve 2 slide relatively, namely, the middle sleeve 2 moves rightwards relative to the outer sleeve 1 to drive the corrugated pipe 4 to elastically compress and deform; when the pressure is increased, after the gap between the first inner annular baffle 5a on the left side and the inner ring 11a of the high-strength steel ring spring set 11 is closed, the corrugated pipe 4 is subjected to compression elastic-plastic deformation to dissipate the seismic energy, the middle casing pipe 2 drives the first inner annular baffle 5a on the left side to push the high-strength steel ring spring set 11 rightwards, and meanwhile, the second outer annular baffle 6b on the right side can limit the high-strength steel ring spring set 11 to move rightwards, so that the high-strength steel ring spring set 10 is compressed to generate restoring force, and the energy consumption is assisted through friction between the inner ring 11a and the outer ring 11b of the high-strength steel ring spring set 11.

Fig. 6 shows that the applied external load is a tensile force, and under the action of the external tensile force, when the tensile force is small, the inner sleeve 3 and the middle sleeve 2 slide relatively, that is, the middle sleeve 2 moves leftwards relative to the outer sleeve 1, so as to drive the corrugated pipe 4 to elastically stretch and deform; when the tensile force is increased and the elastic tensile deformation of the corrugated pipe 4 reaches the deformation limit, after the gap between the second inner annular baffle 5b on the right side and the inner ring 11a of the high-strength steel ring spring set 11 is closed, the corrugated pipe 4 is subjected to tensile elastic-plastic deformation to dissipate seismic energy, the middle casing 2 drives the second inner annular baffle 5b on the right side to push the high-strength steel ring spring set 11 leftwards, meanwhile, the first outer annular baffle 6a on the left side can limit the high-strength steel ring spring set 11 to move leftwards, so that the high-strength steel ring spring set 11 is compressed to generate restoring force, and the energy consumption is assisted by friction between the inner ring 11a and the outer ring 11b of the high-strength steel ring spring set 11.

In this embodiment, the bellows 4 is fixedly connected to the closed end of the middle casing 2 by bolts. The middle sleeve 2 is welded or integrally arranged with the second end plate 10, and the outer sleeve 1 is welded or integrally arranged with the first end plate 9. The end surfaces of the two half sleeves of the outer sleeve 1 are welded with splicing pieces 13, the splicing pieces 13 are spliced through bolts, and the splicing pieces 13 are L-shaped steel or angle steel.

In this embodiment, the design bearing capacity of the connecting member 12 is greater than the ultimate bearing capacity of the buckling-restrained corrugated-tube energy-consuming supporting device. The design bearing capacity of the connecting piece is larger than the ultimate bearing capacity of the self-resetting buckling restrained corrugated pipe energy dissipation brace, so that the connecting piece keeps elasticity, the connecting piece is prevented from yielding in advance, and the normal work of the self-resetting buckling restrained corrugated pipe energy dissipation brace is ensured. The outer sleeve 1, the middle sleeve 2, the inner sleeve 3, the inner annular baffle 5, the outer annular baffle 6, the first end plate 9, the second end plate 10, the splicers 13 and the connecting piece 12 are all made of low-alloy high-strength Q355 steel. The high-strength steel ring spring group 11 adopts 60Si2MnA with the yield strength of 1350MPa, so that the high-strength steel ring spring group 11 can be ensured to be always in an elastic state during working, and the elastic deformation of the high-strength steel ring spring group 11 is restored to realize self-resetting during unloading.

The manufacturing method of the buckling restrained corrugated pipe energy dissipation supporting device based on the ring spring self-resetting is as shown in fig. 7 to 9, and comprises the following steps: assembling and pre-pressing a high-strength steel ring spring set: sleeving the high-strength steel ring spring group 11 on the middle sleeve 2; respectively installing a pair of inner annular baffles 5 at two ends of a high-strength steel ring spring group 11 and connecting the inner annular baffles with an inner sleeve 2 in a welding manner; respectively welding and connecting a pair of outer annular baffles 6 with the inner walls of two half-sleeves of an outer sleeve 1, respectively welding and connecting splicing pieces 13 with the outer walls of the two half-sleeves of the outer sleeve 1, then penetrating bolts (14) through reserved holes in the splicing pieces 13 to splice the two half-sleeves, and simultaneously pre-pressing a high-strength steel ring spring group 11; step two: welding a first end plate 9 and a second end plate 10, welding the first end plate 9 on the end part of the inner wall of the first end of the outer sleeve 1, and welding the second end plate 10 on the end part of the outer wall of the second end of the middle sleeve 2; step three: welding a circular end plate on the inner wall of the first end of the middle sleeve 2 to form a closed end of the middle sleeve 2, welding a circular end plate on the inner wall of the second end of the outer sleeve 1 to form a closed end of the outer sleeve 1, and welding connecting pieces 12 on the two closed ends respectively; fourthly, the corrugated pipe 4 penetrates through the open end of the middle sleeve 2, and the inner sleeve 3 penetrates through the corrugated pipe 4; connecting a first end of the corrugated pipe 4 with the closed end of the middle sleeve 2 through a bolt 14; the formed whole body is penetrated from the open end of the outer sleeve 1, and the corrugated pipe 4 is fixed with the closed end of the outer sleeve 1 through a bolt 14 c; the connecting piece 12 is welded on the outer wall surface of the closed end of the middle sleeve 2 and the outer sleeve 1 respectively. The support technology uses less welding and bolt connection, simplifies the transfer process, reduces the installation difficulty, and has low price, low cost, stable and efficient energy consumption capability and the technical effect of self-resetting function compared with the existing structure of the self-resetting buckling restrained brace due to the high-strength steel ring spring set adopted by the application.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention.

Claims (10)

1. The utility model provides a bucking restraint bellows power consumption strutting arrangement based on ring spring is from restoring to throne which characterized in that: comprises an outer sleeve (1), a high-strength steel ring spring group (11), a middle sleeve (2), a corrugated pipe (4) and an inner sleeve (3) which are sequentially sleeved from outside to inside, wherein a certain gap is reserved between the high-strength steel ring spring group (11) and the outer sleeve (1), a pair of outer annular baffles (6) is fixedly connected on the inner wall of the outer sleeve (1), a pair of inner annular baffles (5) are fixedly connected on the outer wall of the middle sleeve (2), the high-strength steel ring spring group (11) is arranged between the pair of outer annular baffles (6), the distance between the pair of inner annular baffles (5) is greater than the distance between the pair of outer annular baffles (6), the inner annular baffles (5) positioned at the same side are positioned at the outer side of the outer annular baffles (6), one end of the outer sleeve (1) is sealed, and the other end of the outer sleeve (1) forms a through hole for the middle sleeve (2) to pass through a first end plate (9) which extends inwards from the end part of the outer sleeve (1), the middle sleeve (2) penetrates through the through hole of the outer sleeve (1) and is in sliding connection with the first end plate (9), one end of the middle sleeve (2) is closed, the other end of the middle sleeve is open, the open end is in sliding connection with the inner wall of the outer sleeve (1) through a second end plate (10) extending outwards from the end part of the middle sleeve (2), and the distance between the first end plate (9) and the second end plate (10) is larger than the distance between the pair of inner annular baffles (5); one end of the corrugated pipe (4) is fixedly connected with the closed end of the middle sleeve (2), the other end of the corrugated pipe is fixed at the closed end of the outer sleeve (1), and one end of the inner sleeve (3) is fixed at the closed end of the outer sleeve (1).

2. The ring-spring-based self-resetting buckling-restrained corrugated pipe energy-consuming supporting device as claimed in claim 1, wherein: stiffening plates (15) are arranged on the inner surface of the inner sleeve (3) at intervals.

3. The ring-spring-based self-resetting buckling-restrained corrugated pipe energy-consuming supporting device as claimed in claim 1, wherein: and the clearance between the high-strength steel ring spring group (11) and the pair of inner annular baffles (5) in a prepressing state is equal to the elastic deformation limit of the corrugated pipe (4).

4. The ring-spring-based self-resetting buckling-restrained corrugated pipe energy-consuming supporting device as claimed in claim 1, wherein: the corrugated pipe (4) is fixedly connected with the closed end of the middle sleeve (2) through a bolt.

5. The ring-spring-based self-resetting buckling-restrained corrugated pipe energy-consuming supporting device as claimed in claim 1, wherein: the middle sleeve (2) and the second end plate (10) are welded or integrally arranged, and the outer sleeve (1) and the first end plate (9) are welded or integrally arranged.

6. The ring-spring-based self-resetting buckling-restrained corrugated pipe energy-consuming supporting device of claim 5, wherein: the outer sleeve (1) is formed by splicing two half sleeves with equal diameter and equal length.

7. The ring-spring-based self-resetting buckling-restrained corrugated pipe energy-consuming supporting device of claim 6, wherein: splicing pieces (13) are welded on the end surfaces of the two half sleeves of the outer sleeve (1), the splicing pieces (13) are spliced through bolts, and the splicing pieces (13) are L-shaped steel or angle steel.

8. The ring-spring-based self-resetting buckling-restrained corrugated pipe energy-consuming supporting device of claim 6, wherein: the closed end of the outer sleeve (1) and the closed end of the middle sleeve (2) are both provided with a connecting piece (12), and the design bearing capacity of the connecting piece (12) is larger than the limit bearing capacity of the buckling restrained corrugated pipe energy dissipation supporting device.

9. The ring-spring-based self-resetting buckling-restrained corrugated pipe energy-consuming supporting device of claim 6, wherein: the outer sleeve (1), the middle sleeve (2), the inner sleeve (3), the inner annular baffle (5), the outer annular baffle (6), the first end plate (9), the second end plate (10), the splicing piece (13) and the connecting piece (12) are made of low-alloy high-strength Q355 steel.

10. The ring-spring-based self-resetting buckling-restrained corrugated pipe energy-consuming supporting device as claimed in claim 1, wherein: the high-strength steel ring spring group (11) adopts 60Si2MnA with the yield strength of 1350 MPa.

Images