CN114134994A - Buckling restrained brace structure arrangement system for building - Google Patents
Buckling restrained brace structure arrangement system for building Download PDFInfo
- Publication number
- CN114134994A CN114134994A CN202111656710.6A CN202111656710A CN114134994A CN 114134994 A CN114134994 A CN 114134994A CN 202111656710 A CN202111656710 A CN 202111656710A CN 114134994 A CN114134994 A CN 114134994A
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- buckling
- restrained brace
- buckling restrained
- frame
- braces
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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
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
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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
- E04B1/38—Connections for building structures in general
- E04B1/58—Connections for building structures in general of bar-shaped building elements
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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
- E04H9/021—Bearing, supporting or connecting constructions specially adapted for such buildings
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
- Joining Of Building Structures In Genera (AREA)
Abstract
The invention discloses a structural arrangement system of buckling restrained braces for buildings, which comprises frame columns, frame beams, buckling restrained braces and connecting node elements, wherein a rectangle is enclosed between each frame column and each frame beam, the number of the buckling restrained braces is four, two ends of each buckling restrained brace are respectively fixed in the middles of the frame columns and the frame beams through the connecting node elements, and the four buckling restrained braces enclose a rhombic building window opening. The invention adopts the rhombic arranged buckling restrained brace, has good anti-seismic performance, is convenient and fast to construct, reduces the steel consumption of the embedded part, has good feasibility and practicability, and can be used for concrete structures, steel structures and combined structures. Simple structure, definite force transmission and quick construction.
Description
Technical Field
The invention relates to a structural damping building, in particular to a buckling restrained brace structure arrangement system for a building.
Background
As is well known, China is a country with frequent earthquakes, and with the academic research in the earthquake field and the continuous development of engineering technology in China, the earthquake resistance of buildings is greatly improved. In recent years, buckling restrained braces have been increasingly used in engineering and have achieved significant results. The buckling restrained brace is connected with the frame beam and the frame column through the connecting nodes, and the connecting performance of the connecting nodes often influences the anti-seismic performance of the frame beam and the frame column.
It is now common practice to connect the joints by extending gusset plates embedded at the joints of the frame beams, columns, or simply connected to the beam ends. When the node plate with high rigidity is tightly connected with the beam and the column, the stress state of a local component at the connecting node is very complex, meanwhile, the stress state of the node plate is also very complex, and the force transmission of a complex node area can also generate adverse effect on the anti-seismic performance of the column and the beam; when the support is connected with the beam end only, the concentrated axial force action of the support can generate large acting force on the section of the beam end, and the section of the beam end is easy to become a weak surface. Therefore, the complex stress at the connecting node is considered in engineering practice, the steel consumption of the embedded part can be increased, and the safety of the connecting node is ensured.
Disclosure of Invention
The invention aims to overcome the defects and provides a structural arrangement system of a buckling restrained brace for a building, which has good earthquake-resistant performance, is convenient to construct and has an excellent building lighting function.
In order to solve the problems in the prior art, the technical scheme adopted by the invention is as follows:
the buckling restrained brace structure arrangement system for the building comprises frame columns, frame beams, buckling restrained braces and connecting node elements, wherein a rectangle is enclosed between the frame columns and the frame beams, the number of the buckling restrained braces is four, two ends of each buckling restrained brace are fixed to the middle portions of the frame columns and the frame beams through the connecting node elements respectively, and the four buckling restrained braces enclose a rhombic building window opening.
Furthermore, the number of the connecting node elements is four, the connecting node elements are arranged between the two buckling restrained braces and comprise node plates and stiffening plates, the stiffening plates are welded on the node plates, and the stiffening plates are welded with the buckling restrained braces to form a damping module, so that quality control and field construction assembly are facilitated. The damping module formed by the buckling restrained brace and the connecting node element can be used for a reinforced concrete structure, a steel structure and a combined structure, and can be used for newly-built buildings and reinforcing and transforming existing buildings.
Furthermore, the stiffening plate is welded on the gusset plate along the axial direction of the buckling restrained brace so as to ensure the stability of the gusset plate.
Further, the gusset plates are welded at the middle portions of the corresponding frame columns and the frame beams, respectively.
Further, the gusset plates are connected to the corresponding frame posts and frame beams, respectively, by means of studs or chemical anchors.
Further, the buckling restrained brace is a traditional type buckling restrained brace filled with concrete or a pure steel assembly type buckling restrained brace.
Further, the buckling restrained brace adopts a double-step yielding buckling restrained brace.
The invention has the advantages and beneficial effects that:
1. the buckling restrained brace structure arrangement system for the building maintains the excellent lighting function of the building while realizing the improvement of the anti-seismic performance of the structure.
2. According to the invention, as the two ends of the buckling restrained brace are respectively arranged in the middle of the frame column and the frame beam, compared with the traditional buckling restrained brace, the length is reduced, the material is saved, and the yield displacement is reduced; and one span internal buckling restrained brace is changed into four by one, two, and every power that bears reduces, and buckling restrained brace's cross-section reduces, material saving, and it is easier to surrender. Adopt small-size bucking restraint to support, when adopting bolt and connected node element to be connected, the gusset plate trompil is few more succinct.
3. The four buckling restrained braces and the connecting node elements thereof form the damping module, and the module can be produced in a factory in a customized manner and then transported to a construction site for assembly, so that the quality control and the site construction and assembly are facilitated.
4. The damping module is connected with the main body part through welding, a small amount of studs or chemical anchor bolts, and the damping module has the characteristics of convenience in construction, small damage to existing structural members, saving of steel consumption of embedded parts and the like.
5. The adjacent buckling restrained braces share the same gusset plate, so that normal acting force can be mutually offset, and the stress performance of the gusset plate is improved.
6. The connecting node elements are arranged in the middle of the beam and the column, and are positioned far away from the main structure and are bent to a larger extent, so that the mutual adverse effect between the main structure and the secondary structure is avoided.
7. The invention adopts the rhombic arranged buckling restrained brace, has good anti-seismic performance, is convenient and fast to construct, reduces the steel consumption of the embedded part, has good feasibility and practicability, and can be used for concrete structures, steel structures and combined structures. Simple structure, definite force transmission and quick construction.
Drawings
The invention is described in detail below with reference to the following figures and examples:
FIG. 1 is a schematic view of a structural arrangement of a buckling-restrained brace shown in example 1;
FIG. 2 is a schematic view of the structural arrangement of the buckling-restrained brace shown in example 2;
FIG. 3 is a schematic structural view of a buckling restrained brace;
FIG. 4 is a schematic diagram of a connecting node element;
FIG. 5 is a schematic view showing a connection manner of the cushion module and the body according to embodiment 1;
FIG. 6 is a schematic view showing a connection manner of the shock-absorbing module and the body according to embodiment 3;
fig. 7 is a schematic view of the connection between the damping module and the body according to embodiment 4.
In the figure: 1 is a frame column; 2 is a frame beam; 3, a buckling restrained brace; 3-1 is an energy consumption core plate; 3-2 is a stiffening rib; 3-3 is an outer sleeve; 4 is a connecting node element; 4-1 is a gusset plate; 4-2 is a stiffening plate; 4-3 are pegs; 4-4 is a chemical anchor bolt; 4-5 of a bottom plate; 4-6 of connecting plates; bolt-4-7.
Detailed Description
The present invention is further described in detail with reference to the following specific examples, but the scope of the present invention is not limited by the specific examples, which are defined by the claims. In addition, any modification or change that can be easily made by a person having ordinary skill in the art without departing from the technical solution of the present invention will fall within the scope of the claims of the present invention.
Example 1:
as shown in fig. 1, the present embodiment is a buckling-restrained brace structural arrangement system used in a newly-built building employing a reinforced concrete structure. The frame column comprises a frame column 1, frame beams 2, buckling restrained braces 3 and connecting node elements 4, wherein a rectangle is formed by the frame column 1 and the frame beams 2 in each span, the number of the buckling restrained braces 3 in each span is four, two ends of each buckling restrained brace 3 are fixed to the middle of the frame column 1 and the middle of the frame beams 2 through the connecting node elements 4 respectively, the four buckling restrained braces 3 form a rhombic building window opening in a surrounding mode, no adverse effect is caused to the middle space, and the good building lighting function is achieved.
As shown in fig. 3, the buckling-restrained brace 3 may be a conventional concrete-filled buckling-restrained brace or a pure steel assembly type buckling-restrained brace. The buckling restrained brace 3 can be a traditional buckling restrained brace or a double-step buckling restrained brace. In this embodiment, a conventional buckling restrained brace is used. The buckling restrained brace 3 comprises an energy dissipation core plate 3-1, a stiffening rib 3-2 and an outer sleeve 3-3.
The number of the connecting node elements 4 is four, and the connecting node elements are arranged between the two buckling restrained braces 3. As shown in fig. 4, the connecting node elements 4 include node plates 4-1 and stiffener plates 4-2, and the buckling-restraining supports 3 share one node plate in pairs.
As shown in fig. 5, in this embodiment, the buckling-restrained brace 3 and the connection node element 4 are connected by welding, the energy-consuming core plate 3-1 and the stiffening rib 3-2 are welded to the node plate 4-1 with the stiffening plate 4-2, and the stiffening plate 4-2 is welded to the node plate 4-1 along the axial direction of the buckling-restrained brace 3 as an extension plate of the stiffening rib 3-2 of the buckling-restrained brace 3, so as to form a damping module, so as to ensure the stability of the node plate 4-1. Is convenient for quality control and field construction assembly.
In the fixing mode of the gusset plate in the embodiment, the studs 4-3 with proper specifications and quantity are welded at the bottom of the gusset plate 4-1, and the studs 4-3 penetrate into the frame column 1 or the frame beam 2 and are then buried in concrete when the frame column 1 and the frame beam 2 are constructed and poured with concrete, so that a structure system with rhombic buckling restrained braces is formed.
Example 2:
as shown in fig. 2, the present embodiment is a buckling-restrained brace structural arrangement system used in a new building which adopts a steel structure, and the present embodiment is different from embodiment 1 in the fixing mode of a gusset plate and the connection mode of a buckling-restrained brace 3 and a connecting gusset element 4 in a shock-absorbing module.
In the shock absorption module of the embodiment, the buckling restrained brace 3 and the connecting node element 4 are connected by bolts, specifically, screw holes are formed in the node plate 4-1 and the energy dissipation core plate 3-1, after the stiffening plate 4-2 is aligned with the stiffening rib 3-2, a connecting plate 4-6 with screw holes is aligned with the holes in the node plate 4-1 and the energy dissipation core plate 3-1, and then the node plate 4-1 and the energy dissipation core plate 3-1 are connected together by the connecting plate 4-6 and the bolts 4-7. The buckling restrained brace 3 and the connecting node element 4 are connected through the bolts, so that the mounting efficiency is high, and the whole structure is attractive.
In this embodiment, the gusset plates 4-1 are welded to the middle portions of the corresponding frame columns 1 and frame beams 2, respectively, as in embodiment 1.
Example 3:
as shown in fig. 6, the present embodiment is a buckling-restrained brace structural arrangement system used in an existing building, which includes a frame column 1 of the existing building, a frame beam 2 of the existing building, a buckling-restrained brace 3 and a connecting node member 4, wherein the existing building frame column 1 and the existing building frame beam 2 enclose a rectangle therebetween.
As shown in fig. 3, the buckling-restrained brace 3 may be a conventional concrete-filled buckling-restrained brace or a pure steel assembly type buckling-restrained brace. The buckling restrained brace 3 can be a traditional buckling restrained brace or a double-step buckling restrained brace. In this embodiment, a conventional buckling restrained brace is used. The buckling restrained brace 3 comprises an energy dissipation core plate 3-1, a stiffening rib 3-2 and an outer sleeve 3-3.
The number of the connecting node elements 4 is four, and the connecting node elements are arranged between the two buckling restrained braces 3. As shown in fig. 6, the connecting node elements 4 include node plates 4-1 and stiffener plates 4-2, and the buckling-restraining supports 3 share one node plate in pairs. In the embodiment, the node plate 4-1 is provided with a bottom plate 4-5, the length of the bottom plate 4-5 is larger than that of the node plate 4-1, the node plate 4-1 is arranged in the middle of the bottom plate 4-5, and screw holes are formed in the periphery of the bottom plate 4-5.
In this embodiment, the buckling-restrained brace 3 and the connection node element 4 are connected by welding, the energy-consuming core plate 3-1, the stiffening rib 3-2 and the node plate 4-1 with the stiffening plate 4-2 are welded together, and the stiffening plate 4-2 is used as an extension plate of the stiffening rib 3-2 of the buckling-restrained brace 3 and is welded on the node plate 4-1 along the axial direction of the buckling-restrained brace 3 to form a damping module, so as to ensure the stability of the node plate 4-1. Is convenient for quality control and field construction assembly.
Reserving holes in the middle of the frame columns 1 and the frame beams 2 of the existing building, cleaning dust in the holes, putting chemical adhesives in chemical anchor bolts 4-4 into the holes, aligning screw holes in bottom plates 4-5 of the gusset plates with the holes, inserting the screw rods in the chemical anchor bolts 4-4, and fixing the gusset plates on the frame columns 1 or the frame beams 2 of the existing building. Structural adhesive with certain thickness can be smeared at the joint of the bottom plates 4-5 of the gusset plates and the frame beams 2 or the frame columns 1, and the structural adhesive can be high-performance silicone structural adhesive or neutral transparent silicone structural adhesive. And then installing a damping module to form a structure system of the rhombic buckling restrained brace. The connecting method of the chemical anchor bolt is strong in anchoring force and quick in construction, and construction time is saved.
Example 4:
this embodiment is a buckling-restrained brace structural arrangement used in an existing building, and differs from embodiment 3 in the manner in which buckling-restrained braces 3 are connected to connecting node members 4 in the shock-absorbing module.
As shown in fig. 7, the buckling-restrained brace 3 and the connecting node element 4 in the damping module of this embodiment are connected by bolts, specifically, screw holes are provided on both the node plate 4-1 and the energy-consuming core plate 3-1, after aligning the stiffening plate 4-2 with the stiffening rib 3-2, a connecting plate 4-6 with screw holes is aligned with the holes on the node plate 4-1 and the energy-consuming core plate 3-1, and then the node plate 4-1 and the energy-consuming core plate 3-1 are connected together by the connecting plate 4-6 and the bolts 4-7. The rest is the same as example 3.
While the preferred embodiments of the present invention have been illustrated and described, it will be appreciated by those skilled in the art that various modifications and additions may be made to the specific embodiments described and illustrated, and such modifications and additions are intended to be covered by the scope of the present invention.
Claims (7)
1. Buckling restrained brace structure arrangement system for building which characterized in that: the frame column structure comprises frame columns (1), frame beams (2), buckling restrained braces (3) and connecting node elements (4), wherein a rectangle is formed by the frame columns (1) and the frame beams (2) in a surrounding mode, the number of the buckling restrained braces (3) is four, two ends of each buckling restrained brace (3) are fixed to the middle portions of the frame columns (1) and the frame beams (2) through the connecting node elements (4), and the four buckling restrained braces (3) form a rhombic building window opening in a surrounding mode.
2. The architectural buckling-restrained brace structure deployment system of claim 1, wherein: the number of the connecting node elements (4) is four, the connecting node elements are arranged between the two buckling restrained braces (3), each connecting node element (4) comprises a node plate (4-1) and a stiffening plate (4-2), the stiffening plates (4-2) are welded on the node plates (4-1), and the stiffening plates (4-2) are welded with the buckling restrained braces (3).
3. The architectural buckling-restrained brace structure deployment system of claim 2, wherein: the stiffening plates (4-2) are welded on the gusset plates (4-1) along the axial direction of the buckling restrained brace (3).
4. The architectural buckling-restrained brace structure arrangement according to claim 2 or 3, wherein: the gusset plates (4-1) are respectively welded in the middle of the corresponding frame column (1) and the frame beam (2).
5. The architectural buckling-restrained brace structure arrangement according to claim 2 or 3, wherein: the gusset plates (4-1) are respectively connected with the corresponding frame columns (1) and the frame beams (2) through studs (4-3) or chemical anchor bolts (4-4).
6. The architectural buckling-restrained brace structure deployment system of claim 1, wherein: the buckling restrained brace (3) is a traditional buckling restrained brace filled with concrete or a pure steel assembly type buckling restrained brace.
7. The architectural buckling-restrained brace structure deployment system of claim 6, wherein: the buckling restrained brace (3) adopts a double-step yielding buckling restrained brace.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111656710.6A CN114134994A (en) | 2021-12-31 | 2021-12-31 | Buckling restrained brace structure arrangement system for building |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111656710.6A CN114134994A (en) | 2021-12-31 | 2021-12-31 | Buckling restrained brace structure arrangement system for building |
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| CN114134994A true CN114134994A (en) | 2022-03-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111656710.6A Pending CN114134994A (en) | 2021-12-31 | 2021-12-31 | Buckling restrained brace structure arrangement system for building |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114925427A (en) * | 2022-05-19 | 2022-08-19 | 中国建筑第二工程局有限公司 | Buckling restrained brace design method based on BIM |
| CN116290375A (en) * | 2023-05-24 | 2023-06-23 | 中铁城建集团第一工程有限公司 | Anti-seismic buckling support system and support method thereof |
| CN117536355A (en) * | 2024-01-09 | 2024-02-09 | 西南交通大学 | Anti-seismic connection structure for building structure |
-
2021
- 2021-12-31 CN CN202111656710.6A patent/CN114134994A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114925427A (en) * | 2022-05-19 | 2022-08-19 | 中国建筑第二工程局有限公司 | Buckling restrained brace design method based on BIM |
| CN114925427B (en) * | 2022-05-19 | 2022-12-13 | 中国建筑第二工程局有限公司 | Buckling restrained brace design method based on BIM |
| CN116290375A (en) * | 2023-05-24 | 2023-06-23 | 中铁城建集团第一工程有限公司 | Anti-seismic buckling support system and support method thereof |
| CN116290375B (en) * | 2023-05-24 | 2023-08-18 | 中铁城建集团第一工程有限公司 | Anti-seismic buckling support system and support method thereof |
| CN117536355A (en) * | 2024-01-09 | 2024-02-09 | 西南交通大学 | Anti-seismic connection structure for building structure |
| CN117536355B (en) * | 2024-01-09 | 2024-03-22 | 西南交通大学 | Anti-seismic connection structure for building structure |
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