CN113107251A - Steel anti-buckling angle brace with high-strength energy absorption function - Google Patents
Steel anti-buckling angle brace with high-strength energy absorption function Download PDFInfo
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- CN113107251A CN113107251A CN202110398456.8A CN202110398456A CN113107251A CN 113107251 A CN113107251 A CN 113107251A CN 202110398456 A CN202110398456 A CN 202110398456A CN 113107251 A CN113107251 A CN 113107251A
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- earthquake
- energy
- buckling
- energy dissipation
- brace
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H9/00—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate
- E04H9/02—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate withstanding earthquake or sinking of ground
- E04H9/021—Bearing, supporting or connecting constructions specially adapted for such buildings
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/92—Protection against other undesired influences or dangers
- E04B1/98—Protection against other undesired influences or dangers against vibrations or shocks; against mechanical destruction, e.g. by air-raids
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H9/00—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate
- E04H9/02—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate withstanding earthquake or sinking of ground
- E04H9/024—Structures with steel columns and beams
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Environmental & Geological Engineering (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
Abstract
The invention discloses a steel anti-buckling angle brace with a high-strength energy absorption function, which comprises a steel frame beam, a column, an anti-buckling angle brace and an energy dissipation connecting beam, wherein the beam is connected with the column through a bolt, the energy dissipation connecting beam is connected between the column and the column through a bolt, the anti-buckling angle brace is connected in the area close to a beam-column node through a bolt, and meanwhile, stiffening ribs are additionally arranged at web plates at the corresponding positions of the beam and the column. The anti-seismic member can play a bearing function in a normal use state, so that the integrity of a building structure is enhanced, and the elasticity is kept; the energy dissipation connecting beam plays a role in stages under the action of an earthquake, the energy dissipation connecting beam absorbs earthquake energy all the time through plastic deformation, the buckling-restrained brace deforms to different degrees under small, medium and large earthquakes, the earthquake energy is absorbed, and the influence of the earthquake on a house structure is reduced; under the condition of a heavy earthquake, the corner brace is fully deformed to dissipate energy, impact energy of the earthquake action on key parts of the building is fully consumed, the earthquake-resistant performance of the used house is improved, and the corner brace has the advantage of quick assembly.
Description
Technical Field
The invention belongs to the field of earthquake prevention and disaster reduction of civil engineering, and relates to a novel assembly type steel structure with a buckling-restrained angle brace and an energy dissipation connecting beam.
Background
Building earthquake resistance is an important problem in the research of civil engineering problems, and is always of particular interest to researchers. Along with the rapid development of urban economy and science and technology, the guarantee of social stability and economic development become engineering focus of attention, the overall toughness of the structure becomes the target of engineering, and the stress characteristics of the engineering structure are changed when earthquake interference occurs. The interference of earthquake to the building structure can influence the storage of sensitive articles in the building and the life of residents, wherein, fragile articles, valuables and the like can be damaged, which results in property loss, function loss and other consequences, and the interference also provides challenges for the life safety of residents and can seriously influence the social development safety.
The steel material is used as a common energy consumption material, has a good weakening effect on energy impact of the earthquake on the whole structure, and absorbs the earthquake energy and reduces the structural deformation by plastic deformation of the steel structure; meanwhile, the steel material has the characteristics of high strength, light weight and the like, has small influence on the foundation and the foundation, and is easy to install. According to conventional structural mechanics analysis, the buckling-restrained brace changes the force transmission path of the beam and can share the floor load borne by the beam, so that the shearing force, bending moment and deflection of the beam are obviously reduced, and the horizontal component force generated in the deformation process is resisted by the energy dissipation connecting beam. The anti-seismic component can remarkably reduce the column body bending moment while ensuring the lateral rigidity of the structure; and the anti-bending angle brace and the energy dissipation connecting beam provide lateral restraint for the column together, the calculated length of the column is reduced, and the axial pressure stability of the column is further improved.
In order to more effectively protect the integrity of the structure of the building, control the deformation of the structure and protect the storage function of sensitive objects in the building, the invention provides a novel assembly type steel structure with a buckling-restrained angle brace and an energy dissipation connecting beam, which can greatly absorb the energy of earthquake waves on the building and reduce the deformation of the structure. Under the action of an earthquake, the inner frame columns of two adjacent spans generate displacement difference in the vertical direction, so that the in-plane deformation of the energy dissipation connecting beam is caused to absorb earthquake energy, and under small, medium and large earthquakes, the buckling-restrained angle braces generate deformation of different degrees and absorb the influence of the earthquake on a building structure; under the condition of a great earthquake, the energy dissipation connecting beam still absorbs earthquake energy through plastic deformation, the corner brace further deforms fully to dissipate the energy, and the impact energy of the earthquake action on the key components of the building is fully reduced. And the novel assembly type steel structure has the advantage of quick assembly, and the anti-seismic performance of the used house is improved while the installation efficiency is kept.
Disclosure of Invention
Aiming at the problems of integrity and deformation of a building structure caused by an earthquake, the invention provides a novel assembly type steel structure with anti-buckling angle braces and energy dissipation connecting beams, the structure system can weaken the influence of the earthquake on the structure, and external energy is absorbed through structural parts, so that the energy borne by the structure when the structure is impacted is reduced. Compared with the central support and the eccentric support, the corner support type arrangement mode greatly reduces the influence on the indoor space of the building, the appearance of the building and the use function of the building. The efficiency problem of construction can be effectively solved, through the assembled installation to when higher efficiency is under construction, promote structure anti-seismic performance.
In order to solve the above problems, the present invention provides a novel fabricated steel structure having a buckling restrained brace and an energy dissipating coupling beam, comprising: anti-buckling angle brace, bolt, post, stiffening rib, roof beam and energy dissipation even roof beam. The roof beam and post are connected through the bolt, and the energy dissipation is even roof beam and pass through bolted connection between post and post, and when the earthquake was used, the inboard frame post of adjacent two strides produced the displacement difference in vertical direction, and the energy dissipation is even the roof beam and warp through the displacement about the restraint post, reduces the whole deformation of building structure, and the buckling restrained knee-brace passes through bolted connection on post and roof beam, and the stiffening rib passes through welded fastening on the web of roof beam and post.
The invention provides a novel assembly type steel structure with a buckling-restrained angle brace and an energy dissipation connecting beam, which can play a bearing function in a normal use state, keep elasticity and improve the integrity of a building structure; under the action of an earthquake, the energy dissipation connecting beam absorbs earthquake energy through plastic deformation all the time, and under small, medium and large earthquakes, the buckling-restrained angle braces deform to different degrees to absorb the influence of the earthquake on a building structure; under the condition of a great earthquake, the corner brace is fully deformed to dissipate energy, and the impact energy of the earthquake action on the key components of the building is fully reduced. The novel assembly type steel structure has the advantage of rapid assembly, and the anti-seismic performance of a used house is improved while the installation efficiency is kept. Due to the characteristics of the materials, the assembled building structure can be combined, the earthquake resistance of the structure is improved, meanwhile, the engineering efficiency is improved, the earthquake absorption effect of the earthquake absorption device is remarkable, the space is reasonably utilized, and the economic benefit is increased.
The invention has the beneficial effects that: 1. compared with the central support and the eccentric support, the angle support type arrangement mode greatly reduces the influence on the indoor space of the building, the appearance of the building and the use function of the building. 2. When the steel anti-buckling angle brace and the energy dissipation connecting beam are arranged at multiple positions, the structural integrity can be increased, the structural strength is improved, and the overall safety is improved. 3. The invention can be combined with assembly type construction, and improves the construction efficiency and increases the economic benefit while enhancing the shock resistance of the structure. 4. The energy dissipation connecting beam absorbs earthquake energy through plastic deformation all the time, the anti-buckling corner brace generates deformation with different degrees under small, medium and large earthquakes to absorb the influence of the earthquake on a building structure, and the corner brace fully deforms to dissipate energy under the condition of a large earthquake, so that the impact energy of the earthquake on key components of the building is fully reduced.
Drawings
In order to more clearly explain the technical means of the present invention, the present invention will be further described in detail with reference to the accompanying drawings and specific embodiments.
Fig. 1 is a structural schematic diagram of a novel assembly type steel structure.
Figure 2 is a schematic view of an energy dissipation coupling beam structure.
Fig. 3 is a schematic view of a structure of a buckling restrained brace.
In the figure: 1. an anti-buckling knee brace; 2. a bolt; 3. a column; 4. a stiffening rib; 5. a beam; 6. energy dissipation connecting beams; 7. an anti-buckling steel sleeve; 8. a steel bar.
Detailed Description
The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
Referring to fig. 1, the novel assembled steel structure with anti-bending angle braces and energy dissipation connecting beams comprises anti-bending angle braces 1, bolts 2, columns 3, stiffening ribs 4, beams 5, energy dissipation connecting beams 6, anti-bending steel sleeves 7, steel bars 8, the beams 5 and the columns 3 are connected through the bolts 2, the energy dissipation connecting beams 6 are connected between the columns 3 and the columns 3 through the bolts 2, the energy dissipation connecting beams 6 are flush with the anti-bending angle braces 1, the anti-bending angle braces 1 are connected in the areas close to beam column nodes through the bolts 2 and are composed of the anti-bending steel sleeves 7 and the steel bars 8, and the stiffening ribs 4 are fixed on webs of the beams 5 and the columns 3 through welding.
This novel assembled steel structure with buckling restrained brace and energy dissipation are roof beam even can improve structural integrity, anti-seismic performance in the time, combines the assembled to improve the efficiency of construction, reduces the influence to building interior space, building outward appearance and building service function. The structural body can play a bearing function in a normal use state, keep elasticity and strengthen the stability of a building structure; under the action of an earthquake, the inner frame columns of two adjacent spans generate displacement difference in the vertical direction, so that the in-plane deformation of the energy dissipation connecting beam is caused to absorb earthquake energy, and under small, medium and large earthquakes, the buckling-restrained angle braces generate deformation of different degrees and absorb the influence of the earthquake on a building structure; under the condition of a great earthquake, the energy dissipation connecting beam still absorbs earthquake energy through plastic deformation, the corner brace further deforms fully to dissipate the energy, and the impact energy of the earthquake action on the key components of the building is fully reduced. And the novel assembly type steel structure has the advantage of quick assembly, and the anti-seismic performance of the used house is improved while the installation efficiency is kept.
While the embodiments of the present invention have been described in detail with reference to the accompanying drawings, the present invention is not limited to the above embodiments, and various changes, including changes in the materials and connection modes, may be made within the knowledge of those skilled in the art without departing from the spirit of the present invention, and any modifications, equivalent substitutions, improvements, and the like made therein are intended to be included within the scope of the present invention.
Claims (4)
1. An assembled steel structure with anti-buckling angle braces and energy dissipating coupling beams, comprising: buckling-restrained angle brace (1), bolt (2), post (3), stiffening rib (4), roof beam (5) and energy dissipation are even roof beam (6), roof beam (5) and post (3) are connected through bolt (2), energy dissipation is even roof beam (6) and is connected between post (3) and post (3) through bolt (2), the energy dissipation is even with buckling-restrained angle brace (1) in the position of even roof beam (6), buckling-restrained angle brace (1) is connected in roof beam (5) post (3) node vicinity through bolt (2).
2. An assembled steel structure with anti-bending angle brace and energy dissipation connecting beam according to claim 1, characterized in that the anti-bending angle brace (1) is connected with bolts (2) in the area near the beam-column node, the anti-bending angle brace (1) is composed of an anti-bending steel sleeve (7) and a steel bar (8), and the steel bar (8) is dog-bone-shaped or bamboo-joint-shaped.
3. An assembled steel structure with anti-buckling angle braces and energy dissipation connecting beams as claimed in claim 1, wherein the energy dissipation connecting beams (6) are connected between the columns (3) and the pillars (3) by bolts (2) at the same position as the anti-buckling angle braces (1), and the stiffening ribs (4) are fixed on the webs of the beams (5) and the pillars (3) by welding.
4. The assembled steel structure with the anti-buckling angle braces and the energy dissipation connecting beams as claimed in claim 1, wherein the anti-seismic members perform a bearing function in a normal use state, maintain elasticity and enhance the stability of the building structure; under the action of an earthquake, the inner frame columns of two adjacent spans generate displacement difference in the vertical direction, so that the in-plane deformation of the energy dissipation connecting beam is caused to absorb earthquake energy, and under small, medium and large earthquakes, the buckling-restrained angle braces generate deformation of different degrees and absorb the influence of the earthquake on a building structure; under the condition of a great earthquake, the energy dissipation connecting beam still absorbs earthquake energy through plastic deformation, the corner brace is fully deformed to dissipate the energy, and the impact energy of the earthquake action on key components of the building is fully reduced.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110398456.8A CN113107251A (en) | 2021-04-11 | 2021-04-11 | Steel anti-buckling angle brace with high-strength energy absorption function |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110398456.8A CN113107251A (en) | 2021-04-11 | 2021-04-11 | Steel anti-buckling angle brace with high-strength energy absorption function |
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| CN113107251A true CN113107251A (en) | 2021-07-13 |
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| CN202110398456.8A Pending CN113107251A (en) | 2021-04-11 | 2021-04-11 | Steel anti-buckling angle brace with high-strength energy absorption function |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115680127A (en) * | 2022-11-22 | 2023-02-03 | 华南理工大学 | Modularization steel construction building antidetonation-multi-functional cooperative system of shock attenuation |
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2021
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| CN203821606U (en) * | 2014-03-21 | 2014-09-10 | 高金贺 | Novel steelwork beam and pillar buckling restrained brace energy dissipation node |
| CN104612243A (en) * | 2015-02-09 | 2015-05-13 | 海南大学 | Frame-support structure system with function capable of being restored |
| CN104652600A (en) * | 2015-02-25 | 2015-05-27 | 海南大学 | Recoverable function framework structure system |
| CN206091503U (en) * | 2016-10-18 | 2017-04-12 | 武汉科技大学 | Frame construction takes precautions against earthquakes |
| CN206189976U (en) * | 2016-11-09 | 2017-05-24 | 苏州科技大学 | Assembled waves from restoring to throne steel supporting structural system |
| CN107806184A (en) * | 2017-09-15 | 2018-03-16 | 同济大学 | Novel controlled frame structure system with Self-resetting energy dissipation brace |
| CN109024896A (en) * | 2018-07-26 | 2018-12-18 | 中交第航务工程局有限公司 | A kind of bilayer anticollision assembling type steel structure truss bars processing is anti-to pound canopy |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115680127A (en) * | 2022-11-22 | 2023-02-03 | 华南理工大学 | Modularization steel construction building antidetonation-multi-functional cooperative system of shock attenuation |
| CN115680127B (en) * | 2022-11-22 | 2023-09-29 | 华南理工大学 | Modularized steel structure building earthquake-damping multifunctional collaboration system |
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Application publication date: 20210713 |
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