CN219298447U - Multistage power consumption buckling restrained brace of controllable deformation - Google Patents
Multistage power consumption buckling restrained brace of controllable deformation Download PDFInfo
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- CN219298447U CN219298447U CN202320029955.4U CN202320029955U CN219298447U CN 219298447 U CN219298447 U CN 219298447U CN 202320029955 U CN202320029955 U CN 202320029955U CN 219298447 U CN219298447 U CN 219298447U
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Abstract
The utility model discloses a controllable deformation multistage energy-consumption buckling restrained brace which comprises a first energy-consumption section, a connecting block and a second energy-consumption section, wherein the first energy-consumption section and the second energy-consumption section are connected through the connecting block, and each of the first energy-consumption section and the second energy-consumption section comprises an inner core energy-consumption unit, a peripheral constraint unit, an inner filling material and a non-binding material between the inner core energy-consumption unit and the filling material; the primary energy consumption section comprises an inner core energy consumption unit energy consumption steel plate I, an inner core energy consumption unit stiffening rib I, a foam plate I, a peripheral constraint unit I and a filling material I. Compared with the prior art, the utility model has the advantages that: the yield energy consumption under different small deformations can be realized by adjusting the section size and the length of the inner core energy consumption unit of the grading energy consumption section, and different rigidity requirements can be provided for the structure; the controllable energy consumption displacement ductility requirement under a certain earthquake level can be realized by adjusting the gap between the limiting blocks, the internal force distribution of the structure is controlled, and the aim of optimizing the stress of the structure is fulfilled.
Description
Technical Field
The utility model relates to the technical field of building structures, in particular to a controllable deformation multistage energy-consumption buckling restrained brace.
Background
Buckling-Restrained braces (BRBs) mainly comprise an inner core energy consumption unit, a peripheral restraint unit, an inner filling material and a gap or a non-bonding material between the filling material and a core plate.
Buckling restrained braces are widely applied to the shock absorption design of building structures as displacement type metal energy dissipation shock absorption devices. Under the earthquake action, the elastic plastic hysteresis energy consumption is realized after the metal yield of the inner core energy consumption unit, so that the structure can obtain a larger damping ratio, the earthquake wave energy of the input structure is dissipated, and the earthquake action of the building structure can be effectively reduced; meanwhile, additional rigidity can be provided for the building structure, so that a force transmission path of the structure is adjusted, and earthquake shearing force borne by other side force resisting components is relieved; can be replaced in time after being damaged by large earthquake, and does not affect the normal use of the structure.
Currently existing buckling restrained braces are largely divided into two categories: 1. a first order yield buckling restrained brace, i.e. having only a single yield displacement; 2. a multi-stage yielding buckling restrained brace, i.e. having a plurality of yielding displacements. However, it has the following disadvantages:
(1) The existing first-order yielding buckling restrained brace in actual engineering is difficult to meet the performance requirements under different earthquake fortification levels. Because the prior first-order yielding buckling restrained brace energy-consumption core plates are mostly single core plates and Q235 steel is commonly adopted, the yielding restrained brace has single yielding displacement and larger yielding displacement, and is difficult to yield and consume energy under small shock; if the yield displacement is reduced, so that the buckling restrained brace is subjected to small-shock yielding energy consumption, the buckling restrained brace can break due to high-ductility fatigue deformation under a large shock, and the requirement is difficult to guarantee. Therefore, the buckling restrained brace with a single energy dissipation mechanism cannot consume energy under small shock, and application of the buckling restrained brace under small shock is limited to a certain extent. If LY100, LY160 and other mild steels are adopted, the design requirements are still met by the large earthquake although the small earthquake energy consumption can be realized, but the manufacturing cost is high, and the effective popularization is difficult.
(2) Existing multi-stage yielding buckling restrained braces fall into two general categories: a) Buckling restrained braces are combined with other types of energy dissipaters in special construction forms. The buckling restrained brace has complete functions due to the characteristics of other types of energy dissipaters, but also has the defects of other types of energy dissipaters, and is difficult to use in actual engineering due to the fact that the special structure is difficult to generally process, and the structure is complex; b) The buckling restrained brace adopts a core plate structural form of various combination forms to realize multistage energy consumption, but the buckling restrained brace still adopts a single constraint mechanism, and is required to be respectively and integrally processed and produced according to different project requirements, so that the industrialization is lower.
In summary, in view of the defect that the buckling restrained brace in the existing practical engineering has a single energy consumption mechanism, is complex in structure and is unfavorable for industrial production, the application provides a novel controllable deformation multistage energy consumption buckling restrained brace, and the problems are effectively solved.
Disclosure of Invention
The utility model aims to overcome the defects of the technology and provide the controllable deformation multistage energy-consumption buckling restrained brace.
In order to solve the technical problems, the technical scheme provided by the utility model is as follows: the controllable deformation multistage energy-consumption buckling restrained brace comprises a primary energy-consumption section, a connecting block and a secondary energy-consumption section, wherein the primary energy-consumption section and the secondary energy-consumption section are connected through the connecting block, and each of the primary energy-consumption section and the secondary energy-consumption section comprises an inner core energy-consumption unit, a peripheral constraint unit, an inner filling material and an unbonded material between the inner core energy-consumption unit and the filling material; the first-stage energy consumption section comprises an inner core energy consumption unit energy consumption steel plate I, an inner core energy consumption unit stiffening rib I, a foam plate I, a peripheral constraint unit I and a filling material I, wherein a limiting block I is arranged on the inner side wall of the peripheral constraint unit I, a limiting block II is arranged on the outer side of the inner core energy consumption unit energy consumption steel plate I, a limiting block gap is arranged between the limiting block I and the limiting block II, one end of the inner core energy consumption unit stiffening rib is filled by the foam plate I, the filling material I is arranged in the peripheral constraint unit I, and an end cover plate I is arranged on one section of the first-stage energy consumption section far away from the connecting block; the secondary energy consumption section comprises an inner core energy consumption unit energy consumption steel plate II, an inner core energy consumption unit stiffening rib II, a foam plate II, a peripheral constraint unit II and a filling material II, wherein the end part of the inner core energy consumption unit stiffening rib II is filled with the foam plate II, and the section of the secondary energy consumption section, which is far away from the connecting block, is provided with an end cover plate II.
As an improvement, the primary energy consumption section and the secondary energy consumption section are welded with the connecting block through full penetration T-shaped groove welding.
As improvement, the cross-sectional area and the length of the inner core unit of the primary energy consumption section are smaller than those of the inner core unit of the secondary energy consumption section.
As an improvement, the sections of the first energy consumption unit energy consumption steel plate and the second energy consumption unit energy consumption steel plate are a straight section or a cross section or an H section.
As an improvement, the peripheral constraint unit adopts square steel pipes.
As an improvement, the filler material is concrete.
As an improvement, the first limiting block and the second limiting block are steel plates.
Compared with the prior art, the utility model has the advantages that: the yield energy consumption under different small deformations can be realized by adjusting the section size and the length of the inner core energy consumption unit of the grading energy consumption section, and different rigidity requirements can be provided for the structure; the controllable energy consumption displacement ductility requirement under a certain earthquake level can be realized by adjusting the gap between the limiting blocks, and the deformation requirement of entering the secondary energy consumption section can be controlled at the same time, so that the internal force distribution of the structure is controlled, and the aim of optimizing the stress of the structure is fulfilled; the graded energy consumption sections can be prefabricated in a processing plant and produced in batches according to different yield bearing capacities and axial rigidities, and after parameters such as the yield bearing capacity, the equivalent axial rigidity and the like of the buckling restrained brace are definitely determined in actual project engineering, the buckling restrained brace with different grades can be selected for combination, so that the design purpose is achieved, meanwhile, the processing period is greatly saved, the timeliness is improved, the industrialization efficiency is greatly improved, and higher economic and social benefits are achieved.
Drawings
FIG. 1 is a schematic diagram of an assembled structure of a controllable deformation multistage energy-consuming buckling restrained brace of the present utility model.
Fig. 2 is a schematic view of the external structure of the controllable deformation multistage energy dissipation buckling restrained brace.
Fig. 3 is a schematic structural view of a core structure of a controllable deformation multistage energy dissipation buckling restrained brace according to the present utility model.
FIG. 4 is a schematic diagram of a cross-sectional structure of A-A line of a controllable deformation multistage energy dissipation buckling restrained brace.
FIG. 5 is a schematic diagram of a cross-sectional structure of a B-B line of a controllable deformation multistage energy-consuming buckling restrained brace of the present utility model.
FIG. 6 is a schematic diagram of a cross-sectional structure of a C-C line of a controllable deformation multistage energy-consuming buckling restrained brace of the present utility model.
FIG. 7 is a schematic diagram of a cross-sectional structure of a D-D line of a controllable deformation multistage energy dissipation buckling restrained brace of the present utility model.
FIG. 8 is a schematic cross-sectional view of the E-E line of a controllable deformation multistage energy dissipation buckling restrained brace of the present utility model.
Fig. 9 is a schematic diagram of a partially enlarged structure of a controllable deformation multistage energy dissipation buckling restrained brace according to the present utility model.
As shown in the figure: 1. the inner core energy consumption unit stiffening ribs I, 2, an end cover plate I, 3, a foam plate, 4, an inner core energy consumption unit energy consumption steel plate I, 5, a peripheral constraint unit I, 6, a connecting block, 7, a peripheral constraint unit II, 8, an inner core energy consumption unit energy consumption steel plate II, 9, a member, 10, a limiting block I, 11, a limiting block II, 12, an inner core energy consumption unit stiffening rib II, 13, a filling material I, 14, an unbonded material, 15 and a limiting block gap.
Detailed Description
The utility model relates to a controllable deformation multistage energy-consumption buckling restrained brace which is further described in detail below with reference to the accompanying drawings.
With reference to the attached drawings, a controllable deformation multistage energy-consumption buckling restrained brace,
the energy-saving type energy-saving device comprises a primary energy-saving section, a connection 6 and a secondary energy-saving section, wherein the primary energy-saving section and the secondary energy-saving section are connected through the connection block 6, and each of the primary energy-saving section and the secondary energy-saving section comprises an inner core energy-saving unit, a peripheral constraint unit, an inner filling material and a non-binding material 14 between the inner core energy-saving unit and the filling material; the primary energy consumption section comprises an inner core energy consumption unit energy consumption steel plate I4, an inner core energy consumption unit stiffening rib I1, a foam plate I3, a peripheral constraint unit I5 and a filling material I13, wherein a limiting block I10 is arranged on the inner side wall of the peripheral constraint unit I5, a limiting block II 11 is arranged on the outer side of the inner core energy consumption unit energy consumption steel plate I4, a limiting block gap 15 is arranged between the limiting block I10 and the limiting block II 11, the end part of the inner core energy consumption unit stiffening rib I1 is filled with the foam plate 3, the filling material I13 is arranged in the peripheral constraint unit I5, and an end cover plate I2 is arranged on the section, far away from the connecting block 6, of the primary energy consumption section; the secondary energy consumption section comprises an inner core energy consumption unit energy consumption steel plate II 8, an inner core energy consumption unit stiffening rib II 12, a foam plate II, a peripheral constraint unit II 7 and a filling material II, wherein the end part of the inner core energy consumption unit stiffening rib II 12 is filled with the foam plate 3, and an end cover plate II is arranged on the section, far away from the connecting block 6, of the secondary energy consumption section.
The primary energy consumption section and the secondary energy consumption section are welded with the connecting block 6 through full penetration T-shaped groove welding.
The cross-sectional area and the length of the inner core unit of the primary energy consumption section are smaller than those of the inner core unit of the secondary energy consumption section.
The sections of the first inner core energy consumption unit energy consumption steel plate 4 and the second inner core energy consumption unit energy consumption steel plate 8 are a straight section or a cross section or an H section.
The peripheral constraint unit adopts square steel pipes.
The filling material is concrete.
The first limiting block 10 and the second limiting block 11 are steel plate blocks.
When the buckling restrained brace is in specific implementation, under the action of an earthquake, the axial force born by the inner core energy consumption unit of the primary energy consumption section and the inner core energy consumption unit of the secondary energy consumption section of the buckling restrained brace is the same when the buckling restrained brace is deformed slightly. Because the cross section area of the inner core energy consumption unit of the primary energy consumption section is smaller than that of the inner core energy consumption unit of the secondary energy consumption section, the deformation of the buckling restrained brace is mainly concentrated in the primary energy consumption section under small shock. The energy consumption units of the inner core of the primary energy consumption section reach yield displacement at first, namely small-vibration yield energy consumption is realized; along with the enhancement of earthquake action, the axial deformation of the buckling restrained brace is increased, the spacing between limiting blocks in the primary energy dissipation section is reduced until the limiting blocks are contacted, at the moment, the internal force of the primary energy dissipation inner core energy dissipation unit is not changed, the newly increased axial force of the buckling restrained brace is born by the primary energy dissipation section peripheral constraint unit and the secondary energy dissipation section inner core energy dissipation unit, when the axial deformation of the buckling restrained brace is increased to the yield displacement of the secondary energy dissipation section inner core energy dissipation unit, at the moment, the buckling restrained brace starts to consume energy secondarily, the additional damping ratio of a structure under the large deformation is further increased, the earthquake reaction of the structure under the action of rarely-occurring earthquake is reduced, and the structure is prevented from being seriously damaged.
The utility model and its embodiments have been described above with no limitation, and the actual construction is not limited to the embodiments of the utility model as shown in the drawings. In summary, if one of ordinary skill in the art is informed by this disclosure, a structural manner and an embodiment similar to the technical solution should not be creatively devised without departing from the gist of the present utility model.
Claims (7)
1. The utility model provides a multistage power consumption buckling restrained brace of controllable deformation which characterized in that: comprises a primary energy consumption section, a connecting block (6) and a secondary energy consumption section, wherein the primary energy consumption section is connected with the secondary energy consumption section through the connecting block (6),
the primary energy consumption section and the secondary energy consumption section comprise an inner core energy consumption unit, a peripheral constraint unit, an inner filling material and an unbonded material (14) between the inner core energy consumption unit and the filling material;
the primary energy consumption section comprises an inner core energy consumption unit energy consumption steel plate I (4), an inner core energy consumption unit stiffening rib I (1), a foam plate I (3), a peripheral constraint unit I (5) and a filling material I (13),
the inner core energy consumption unit is characterized in that a first limiting block (10) is arranged on the inner side wall of the first peripheral constraint unit (5), a second limiting block (11) is arranged on the outer side of the first inner core energy consumption unit energy consumption steel plate (4), a limiting block gap (15) is formed between the first limiting block (10) and the second limiting block (11), the end part of the first inner core energy consumption unit stiffening rib (1) is filled with a foam plate (3), a first filling material (13) is arranged in the first peripheral constraint unit (5), and a first end cover plate (2) is arranged on a section of the first energy consumption section, which is far away from the connecting block (6);
the secondary energy consumption section comprises an inner core energy consumption unit energy consumption steel plate II (8), an inner core energy consumption unit stiffening rib II (12), a foam plate II (3), a peripheral constraint unit II (7) and a filling material II, wherein the end part of the inner core energy consumption unit stiffening rib II (12) is filled with the foam plate (3), and an end cover plate II is arranged on the section, far away from the connecting block (6), of the secondary energy consumption section.
2. The controllable deformation multistage energy dissipation buckling restrained brace of claim 1, wherein: the primary energy consumption section and the secondary energy consumption section are welded with the connecting block (6) through full penetration T-shaped groove welding.
3. The controllable deformation multistage energy dissipation buckling restrained brace of claim 1, wherein: the cross-sectional area and the length of the inner core unit of the primary energy consumption section are smaller than those of the inner core unit of the secondary energy consumption section.
4. The controllable deformation multistage energy dissipation buckling restrained brace of claim 1, wherein: the sections of the first inner core energy consumption unit energy consumption steel plate (4) and the second inner core energy consumption unit energy consumption steel plate (8) are a straight section or a cross section or an H section.
5. The controllable deformation multistage energy dissipation buckling restrained brace of claim 1, wherein: the peripheral constraint unit adopts square steel pipes.
6. The controllable deformation multistage energy dissipation buckling restrained brace of claim 1, wherein: the filling material is concrete.
7. The controllable deformation multistage energy dissipation buckling restrained brace of claim 1, wherein: the first limiting block (10) and the second limiting block (11) are steel plate blocks.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320029955.4U CN219298447U (en) | 2023-01-06 | 2023-01-06 | Multistage power consumption buckling restrained brace of controllable deformation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320029955.4U CN219298447U (en) | 2023-01-06 | 2023-01-06 | Multistage power consumption buckling restrained brace of controllable deformation |
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| Publication Number | Publication Date |
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| CN219298447U true CN219298447U (en) | 2023-07-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202320029955.4U Active CN219298447U (en) | 2023-01-06 | 2023-01-06 | Multistage power consumption buckling restrained brace of controllable deformation |
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- 2023-01-06 CN CN202320029955.4U patent/CN219298447U/en active Active
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