CN219386726U - Sandwich-constrained multi-stage buckling-restrained supporting device - Google Patents
Sandwich-constrained multi-stage buckling-restrained supporting device Download PDFInfo
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- CN219386726U CN219386726U CN202221085169.8U CN202221085169U CN219386726U CN 219386726 U CN219386726 U CN 219386726U CN 202221085169 U CN202221085169 U CN 202221085169U CN 219386726 U CN219386726 U CN 219386726U
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- 230000000452 restraining effect Effects 0.000 claims abstract description 33
- 239000000463 material Substances 0.000 claims abstract description 29
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 24
- 239000010959 steel Substances 0.000 claims abstract description 24
- 210000003739 neck Anatomy 0.000 claims description 4
- 238000005265 energy consumption Methods 0.000 abstract description 14
- 238000010521 absorption reaction Methods 0.000 abstract description 6
- 230000021715 photosynthesis, light harvesting Effects 0.000 abstract description 5
- 230000035939 shock Effects 0.000 abstract description 5
- 238000005516 engineering process Methods 0.000 abstract description 2
- 230000009471 action Effects 0.000 description 3
- 238000013016 damping Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/30—Adapting or protecting infrastructure or their operation in transportation, e.g. on roads, waterways or railways
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Abstract
The utility model discloses a sandwich-restrained multi-stage buckling-restrained brace device, which aims at solving the problem that the buckling-restrained brace design in the prior art is difficult to meet energy dissipation and shock absorption under various earthquake conditions. The buckling restrained device comprises an inner supporting member, a restraining member and an outer supporting member, wherein the outer part of the inner supporting member is sequentially sleeved with the restraining member and the outer supporting member, and two ends of the inner supporting member, the restraining member and the outer supporting member are respectively connected with each connecting member. The number of the buckling restrained devices is multiple, and two adjacent sets are connected in a nested manner. The technology adopts the outer support member made of the low yield point steel material and the inner support member made of the high yield point steel material, and can also ensure that the energy consumption function and the rigidity requirement are exerted in the large earthquake stage on the premise of meeting the small deformation energy consumption and the bearing in the small earthquake stage, and the energy consumption range is larger and the functions are more comprehensive.
Description
Technical Field
The utility model relates to the technical field of earthquake and disaster prevention in civil engineering, in particular to a sandwich constraint multi-stage buckling-restrained supporting device.
Background
In the prior art, in order to dissipate seismic energy, buckling restrained braces are often adopted in engineering as energy dissipaters of structures, so that the purposes of energy dissipation and shock absorption are achieved. The existing buckling restrained brace can have insufficient length of a yielding section when facing a large earthquake, so that the buckling restrained brace can withdraw from working to lose energy consumption capacity.
In recent years, with the continuous development and the gradual maturity of energy-consuming and damping technology, the energy-consuming and damping product is widely applied in structural engineering, the buckling restrained brace solves the problem that the common brace is easy to buckle under pressure, has full hysteresis curve, can be used as an energy consumer of a structure under the action of an earthquake, achieves the purpose of energy dissipation and damping, is easy to manufacture and install, is uniformly accepted by industry experts and wide structural engineers, and has increasingly wide application.
Generally, buckling restrained brace structures are comprised of a support member, a restraining member, and an unbonded material. At present, most of the existing buckling restrained brace is in a first-order energy consumption mode, only one supporting member is arranged, if a high-yield-point steel material is used, the bearing capacity is large, but the member keeps elasticity under the action of small earthquake, energy cannot be dissipated for the structure, if the low-yield-point steel material is used, the bearing capacity is small, the energy consumption capacity is insufficient in the process of large earthquake, and the engineering application range is limited. The buckling restrained brace design of the first-order energy consumption form is difficult to meet the energy dissipation and shock absorption requirements under various earthquake conditions.
Disclosure of Invention
The utility model solves the problem that the design of the buckling restrained brace in the prior art is difficult to meet the energy dissipation and shock absorption under various earthquake conditions, and provides the sandwich constraint multi-stage buckling restrained brace device which has a reasonable structure and meets various earthquake conditions.
The technical scheme of the utility model is that a sandwich-restrained multi-stage buckling-restrained brace device with the following structure is provided:
the buckling restrained device comprises an inner supporting member, a restraining member and an outer supporting member, wherein the outer portion of the inner supporting member is sequentially sleeved with the restraining member and the outer supporting member, and two ends of the inner supporting member, the restraining member and the outer supporting member are respectively connected with each connecting member.
Preferably, the number of the buckling restrained devices is multiple, two adjacent sets are connected in a nested mode, and the inner supporting member of the lateral buckling restrained device is adjacent to the outer supporting member of the medial buckling restrained device.
Preferably, the connecting members are connecting plugboards, two ends of the inner supporting member, the restraining member and the outer supporting member are respectively provided with slots for embedding one end of each connecting member, and the other end of each connecting member is a connecting lug.
Preferably, the connecting member is a connecting end plate and a stepped shaft, two ends of the inner supporting member and the outer supporting member are respectively connected with one ends of the connecting end plate and the stepped shaft, and the restraining member is sleeved at one end of the stepped shaft through the buffer cavity.
Preferably, the connecting member is a stepped shaft, two ends of the inner supporting member and the outer supporting member are respectively connected with one end of each stepped shaft, the restraining member is sleeved at one end of one or two stepped shafts through the buffer cavity, and the other end of each stepped shaft is a connecting lug.
Preferably, the inner supporting member is a tubular body, a cylindrical body, a polygonal cylinder, an H-shaped cylinder or a cross-shaped cylinder, wherein the middle part of the inner supporting member is provided with 1-10 necking down parts, and the necking down parts are conical tubes, cylindrical truncated cones, polygonal truncated cones, H-shaped truncated cones or cross-shaped truncated cones.
Preferably, the outer support member is made of low yield point steel, and the inner support member is made of high yield point steel; or the material of the outer support member is high yield point steel, and the material of the inner support member is low yield point steel.
Preferably, the cross sections of the restraining member and the outer support member are square or circular tubes.
Compared with the prior art, the sandwich-restrained multi-stage buckling-restrained brace device has the following advantages:
1. the novel sandwich-restrained multistage buckling-restrained brace adopts the outer supporting member made of the low-yield-point steel material and the inner supporting member made of the high-yield-point steel material, so that the novel sandwich-restrained multistage buckling-restrained brace can also ensure that the energy consumption function and the rigidity requirement are exerted in the large-earthquake stage on the premise of meeting the small deformation energy consumption and bearing in the small-earthquake stage, the energy consumption range is larger, and the functions are more comprehensive.
2. The outer support member has low yield point, and is firstly in a deformation energy consumption state under the action of pressure, so that the effect of rapidly dissipating earthquake energy in small earthquake is achieved. When a large earthquake occurs, the inner supporting member also enters a deformation energy consumption state, and the steel material with high yield point has larger bearing capacity and stronger energy consumption capacity, can dissipate a large amount of earthquake energy and plays a role in protecting the structure.
3. The method has the advantages of large deformation range, wide energy consumption range and strong bearing capacity.
Drawings
FIG. 1 is one of the structural schematic diagrams of the present utility model;
FIG. 2 is a second schematic diagram of the structure of the present utility model;
FIG. 3 is a schematic view of the structure of the inner support member of FIGS. 1-2 in accordance with the present utility model;
fig. 4 is a schematic view of the structure of the outer support member of fig. 1 to 2 according to the present utility model;
FIG. 5 is a schematic view of the structure of the restraining member of FIGS. 1-2 in accordance with the present utility model;
FIG. 6 is a third schematic diagram of the structure of the present utility model;
FIG. 7 is a schematic view of the structure of the inner support member of FIG. 6 in accordance with the present utility model;
FIG. 8 is a schematic view of the structure of the connecting member of FIG. 1 according to the present utility model;
FIG. 9 is a schematic view of the structure of the connecting member of FIG. 2 according to the present utility model;
FIG. 10 is a schematic view of the construction of the inner side of the connecting member of the present utility model;
FIG. 11 is a front view of a fourth embodiment of the present utility model;
FIG. 12 is a top view of a fourth embodiment of the present utility model;
FIG. 13 is a schematic view of the structure of the inner support member of FIG. 11 in accordance with the present utility model;
FIG. 14 is a schematic view of the structure of the outer support member of FIG. 11 in accordance with the present utility model;
FIG. 15 is a schematic view of the structure of the binding member of FIG. 11 in accordance with the present utility model;
fig. 16 is a schematic view of the structure of the connecting restriction member of fig. 11 according to the present utility model.
In the description of the drawings, reference numeral 1 is a stepped shaft, 1 'is a connecting end plate, 2 is an outer supporting member, 3 is a restraining member, 4 is an inner supporting member, 5 is a conical tube, 5' is a cross-shaped truncated cone, 6 is a buffer cavity sleeve, 7 is a connecting lug, and 8 is a connecting plugboard.
Detailed Description
In order that those skilled in the art will better understand the present utility model, a technical solution in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in which it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present utility model without making any inventive effort, shall fall within the scope of the present utility model.
The sandwich-constrained multi-stage buckling-restrained brace apparatus of the present utility model is further described below with reference to the accompanying drawings and detailed description: as shown in the figure, the embodiment comprises two connecting members and an anti-buckling device, the anti-buckling device comprises an inner supporting member 4, a restraining member 3 and an outer supporting member 2, wherein the outer part of the inner supporting member 4 is sequentially sleeved with the restraining member 3 and the outer supporting member 2, and two ends of the inner supporting member 4, the restraining member 3 and the outer supporting member 2 are respectively connected with each connecting member. The number of the buckling restrained devices is multiple, two adjacent sets are connected in a nested mode, and the inner support member 4 of the buckling restrained device close to the outer side is adjacent to the outer support member 2 of the buckling restrained device close to the inner side.
Comprising a connecting member, an inner support member 4, an outer support member 2 and a restraining member 3. The inner support member 4 is positioned at the inner side, the outer support member 2 is positioned at the outer side, and the constraint member 3 is positioned between the inner support member 4 and the outer support member 2, and the constraint member 3 can be sleeved in multiple sets, so that the effect of sleeved in multiple sets and parallel use is realized.
The connecting member is a connecting end plate 1 'and a stepped shaft 1, two ends of the inner supporting member 4 and the outer supporting member 2 are respectively connected with one ends of the connecting end plate 1' and the stepped shaft 1, and the restraining member 3 is connected with one end of the stepped shaft 1 through a buffer cavity 6.
The connecting component is a stepped shaft 1, two ends of the inner supporting component 4 and the outer supporting component 2 are respectively connected with one end of each stepped shaft 1, the restraining component 3 is connected with one end of one or two stepped shafts 1 through a buffer cavity 6, and the other end of each stepped shaft 1 is a connecting lug 7. After the two ends of the inner support member 4 and the outer support member 2 receive pressure shrinkage energy absorption, the constraint member 3 in the middle is not stressed, and is only responsible for constraining the inner support member 4 and the outer support member 2 from deformation, the length of the constraint member is unchanged, the relative motion can occur in the buffer cavity 6, and the buffer cavity 6 is a movable space reserved for the constraint member 3.
The connecting members are connecting plugboards 8, two ends of the inner supporting member 4, the restraining member 3 and the outer supporting member 2 are respectively provided with slots for embedding one end of each connecting member, and the other end of each connecting member is a connecting lug 7.
The connecting members are three, one is a connecting end plate 1' with one end vertically connected with a connecting lug 7, one is a stepped shaft 1 structure with one end vertically connected with the connecting lug 7, and the other is a connecting plugboard 8.
The inner supporting member 4 is a tubular body, a cylindrical body, a polygonal cylindrical body, an H-shaped cylindrical body or a cross-shaped cylindrical body, wherein 1-10 necking necks are arranged in the middle of the inner supporting member, and the necking necks are conical tubes 5, cylindrical truncated cones, polygonal truncated cones, H-shaped truncated cones or cross-shaped truncated cones 5'.
The outer support member 2 is made of low yield point steel, and the inner support member 4 is made of high yield point steel; or the material of the outer support member 2 is a high yield point steel material, and the material of the inner support member 4 is a low yield point steel material. The cross sections of the restraining member 3 and the outer support member 2 are both square or circular tubes.
The inner supporting member 4 is a tubular body, a cylinder, a polygonal cylinder or a cross-shaped body; the circular tube type inner supporting member 4 has a circular tube structure. The inner support member 4 is located on the inside of the whole member. The necking is a conical tube 5, a cylindrical frustum, a polygonal frustum or a cross frustum 5'.
The outer supporting member 2 is a tubular body, a polygonal tubular body or a cross-shaped tubular body which is sleeved outside the inner supporting member 4 in a matching way, and is positioned outside the whole technical structure.
The restraining member 3 is a tubular body, a polygonal tubular body or a cross-shaped tubular body which is sleeved outside the inner supporting member 4 in a matching manner, and is positioned between the inner supporting member 4 and the outer supporting member 2.
In the first case, the inner support member 4 is made of a high yield point steel material, the outer support member 2 is made of a low yield point steel material, and the inner support member 4 has a length smaller than that of the outer support member 2. The restraining member 3 is now located intermediate the inner and outer supports and has a length less than the outer support member 2 and greater than the inner support member 4. The outer support member 2 made of low yield point material is deformed firstly to consume energy, and when the inner support member 4 and the outer support member 2 are deformed under pressure successively, the restraint member 3 provides lateral restraint for the outer support member and prevents buckling of the outer support member 2. The connecting member in the shape of the stepped shaft 1, when receiving pressure, stepwise transmits the pressure to the outer support member 2 and the inner support member 4.
In the second case, on the contrary, the inner support member 4 may be made of a low yield point steel material, the outer support member 2 may be made of a high yield point steel material, and the inner support member 4 may have a length greater than that of the outer support member 2. The inner support member 4 and the outer support member 2 can still be sleeved on the inner side of the stepped shaft 1, and the same effect can be achieved only by adjusting the sleeve depth of the inner support member and the stepped shaft 1.
The restraining member 3 is now located intermediate the still inner and outer supports and has a length smaller than the inner support member 4 and greater than the outer support member 2. The inner support member 4 made of low yield point material is deformed firstly to consume energy, and when the outer support member 2 and the inner support member 4 are deformed under pressure successively, the restraint member 3 provides lateral restraint for the outer support member 2 and the inner support member 4 to prevent buckling. The connecting member in the shape of the stepped shaft 1, when receiving pressure, stepwise transmits the pressure to the outer support member 2 and the inner support member 4.
In the third case, the length of the outer support member 2 is equal to the length of the inner support member 4. After special treatment of necking, even if the length and the material of the two are the same, the structure with different yield points can still be obtained between the two to realize shock resistance and energy absorption.
In the three cases, the combination relation of the length relation and the material strength is only an example, and the length and the material can be designed according to the actual anti-seismic requirement situation, so that the requirement of various yield points can be met. According to the anti-seismic grade requirements of different structures, different materials can be selected, the length-diameter ratio and the thickness of the different materials are selected, the bonding degree among the inner support member 4, the outer support member 2 and the restraint pipes is selected, and the materials can be selected not only for steel materials, but also for various polymer materials.
During the installation process, embedded parts are arranged at two opposite angles on the concrete frame of the building, and the connecting members in the device are welded or connected to the preset embedded parts through bolts.
The foregoing is merely a preferred embodiment of the present utility model and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present utility model, which are intended to be comprehended within the scope of the present utility model.
Claims (10)
1. A sandwich-constrained multi-stage buckling-restrained supporting device is characterized in that: the buckling restrained device comprises an inner supporting member, a restraining member and an outer supporting member, wherein the outer portion of the inner supporting member is sequentially sleeved with the restraining member and the outer supporting member, and two ends of the inner supporting member, the restraining member and the outer supporting member are respectively connected with each connecting member.
2. The sandwich-constrained multi-stage buckling-restrained brace apparatus of claim 1, wherein: the number of the buckling restrained devices is multiple, two adjacent sets are connected in a nested mode, and the inner supporting member close to the outer buckling restrained device is adjacent to the outer supporting member close to the inner buckling restrained device.
3. The sandwich-constrained multi-stage buckling-restrained brace apparatus of claim 1, wherein: the connecting members are connecting plugboards, slots are respectively arranged at two ends of the inner supporting member, the restraining member and the outer supporting member and are embedded with one end of each connecting member, and the other end of each connecting member is a connecting lug.
4. The sandwich-constrained multi-stage buckling-restrained brace apparatus of claim 1, wherein: the connecting member is a connecting end plate and a stepped shaft, two ends of the inner supporting member and the outer supporting member are respectively connected with one ends of the connecting end plate and the stepped shaft, and the restraining member is sleeved at one end of the stepped shaft through the buffer cavity.
5. The sandwich-constrained multi-stage buckling-restrained brace apparatus of claim 1, wherein: the connecting component is a stepped shaft, two ends of the inner supporting component and the outer supporting component are respectively connected with one end of each stepped shaft, the restraining component is sleeved at one end of one or two stepped shafts through the buffer cavity, and the other end of each stepped shaft is a connecting lug.
6. The sandwich-constrained multi-stage buckling restrained brace apparatus of any of claims 1-5, wherein: the inner supporting member is a tubular body, a cylindrical body, a polygonal cylindrical body, an H-shaped cylindrical body or a cross-shaped cylindrical body, wherein 1-10 necking necks are arranged at the middle part of the inner supporting member, and the necking necks are conical tubes, cylindrical truncated cones, polygonal truncated cones, H-shaped truncated cones or cross-shaped truncated cones.
7. The sandwich-constrained multi-stage buckling restrained brace apparatus of any of claims 1-5, wherein: the outer support member is made of low-yield-point steel, and the inner support member is made of high-yield-point steel; or the material of the outer support member is high yield point steel, and the material of the inner support member is low yield point steel.
8. The sandwich-constrained multi-stage buckling-restrained brace apparatus of claim 6, wherein: the cross sections of the restraining member and the outer support member are square pipes or round pipes.
9. The sandwich-constrained multi-stage buckling-restrained brace apparatus of claim 7, wherein: the cross sections of the restraining member and the outer support member are square pipes or round pipes.
10. The sandwich-constrained multi-stage buckling restrained brace apparatus of any of claims 1-5, wherein: the cross sections of the restraining member and the outer support member are square pipes or round pipes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221085169.8U CN219386726U (en) | 2022-05-08 | 2022-05-08 | Sandwich-constrained multi-stage buckling-restrained supporting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221085169.8U CN219386726U (en) | 2022-05-08 | 2022-05-08 | Sandwich-constrained multi-stage buckling-restrained supporting device |
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| CN219386726U true CN219386726U (en) | 2023-07-21 |
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| CN202221085169.8U Active CN219386726U (en) | 2022-05-08 | 2022-05-08 | Sandwich-constrained multi-stage buckling-restrained supporting device |
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| CN (1) | CN219386726U (en) |
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- 2022-05-08 CN CN202221085169.8U patent/CN219386726U/en active Active
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