CN114658123A - Cross-floor energy dissipation and shock absorption supporting frame structure and construction method thereof - Google Patents
Cross-floor energy dissipation and shock absorption supporting frame structure and construction method thereof Download PDFInfo
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- CN114658123A CN114658123A CN202210179798.5A CN202210179798A CN114658123A CN 114658123 A CN114658123 A CN 114658123A CN 202210179798 A CN202210179798 A CN 202210179798A CN 114658123 A CN114658123 A CN 114658123A
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- 238000010276 construction Methods 0.000 title claims abstract description 12
- 230000035939 shock Effects 0.000 title claims description 7
- 238000010521 absorption reaction Methods 0.000 title abstract description 16
- 230000021715 photosynthesis, light harvesting Effects 0.000 title abstract description 11
- 229910000831 Steel Inorganic materials 0.000 claims description 104
- 239000010959 steel Substances 0.000 claims description 104
- 239000002131 composite material Substances 0.000 claims description 7
- 238000010008 shearing Methods 0.000 claims description 6
- 238000000034 method Methods 0.000 claims 1
- 238000005265 energy consumption Methods 0.000 abstract description 9
- 230000009471 action Effects 0.000 abstract description 6
- 230000000694 effects Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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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
-
- 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
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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
-
- 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 floor-crossing energy-consuming and shock-absorbing support frame structure which comprises a plurality of support frame units, wherein the support frame units are divided into a first zone, a second zone, a third zone and a fourth zone, each support frame unit comprises two buckling-restrained braces arranged in a straight shape, the buckling-restrained braces are arranged in the first zone and the fourth zone or the buckling-restrained braces are arranged in the second zone and the third zone, and an upper layer and a lower layer of adjacent support frame units form a K-shaped support frame. The cross-floor energy-consumption shock-absorption supporting frame structure provided by the invention can ensure the lateral rigidity and energy-consumption capability of the frame under the lateral force action such as earthquake action and the like, and meanwhile, the occupancy rate of the building space is lower, especially in a large-span frame structure with the span-height ratio exceeding 2.0, the influence on the size of a building bay can be greatly reduced, meanwhile, the system integrity is stronger, and the cross-floor energy-consumption shock-absorption supporting frame structure is more suitable for large high-rise buildings. The invention also provides a construction method of the cross-floor energy-dissipation and shock-absorption support frame structure.
Description
Technical Field
The invention relates to the technical field of building structures, in particular to a cross-floor energy dissipation and shock absorption supporting frame structure and a construction method thereof.
Background
In recent years, major earthquakes frequently occur, and building damage caused by the earthquakes is more and more serious. Therefore, the reduction of casualties and economic losses due to structural damage of buildings is an important direction in the technical field of building structures. The frequent occurrence of earthquake disasters puts higher requirements on the earthquake resistance level of buildings.
In high-rise and super high-rise buildings, some additional components, such as buckling restrained braces, are usually arranged to increase the structural rigidity and the overall damping, so as to achieve the purposes of consuming earthquake energy and improving earthquake-proof safety. In a high-rise building provided with the buckling restrained brace members, the buckling restrained braces occupy the building space, and the available space is reduced.
Disclosure of Invention
Aiming at the technical problem that the arrangement of a buckling-restrained brace causes the reduction of available building space in the prior art, the invention provides a cross-floor energy-dissipation and shock-absorption support frame structure and a construction method thereof.
On one hand, the invention provides a floor-crossing energy-consuming and shock-absorbing support frame structure which comprises a plurality of support frame units, wherein the support frame units are divided into a first zone bit, a second zone bit, a third zone bit and a fourth zone bit, each support frame unit comprises two buckling-restrained supports which are arranged in a straight shape, the buckling-restrained supports are arranged in the first zone bit and the fourth zone bit or the buckling-restrained supports are arranged in the second zone bit and the third zone bit, and the upper layer and the lower layer of adjacent support frame units form a K-shaped support frame.
In some embodiments, the support frame unit further comprises:
the steel columns are arranged on two sides and comprise a left steel frame column arranged on the left side and a right steel frame column arranged on the right side;
the steel beam is arranged between the left steel frame column and the right steel frame column and comprises a middle-layer steel beam and an upper-layer steel beam, and the upper-layer steel beam is arranged above the middle-layer steel beam.
In some embodiments, the middle layer steel beams are connected with the middle layer concrete floor slab through a middle layer uplift-resistant non-shear connector.
In some embodiments, the upper steel beam is connected to the upper concrete floor by an upper stud connection.
In some embodiments, the two ends of the buckling restrained brace are connected with the brace nodes.
In some embodiments, the support nodes are fixedly arranged on steel beams and/or columns.
On the other hand, the invention provides a construction method of a cross-floor energy dissipation and shock absorption support frame structure, which comprises the following steps:
(1) constructing a left steel frame column, a right steel frame column, a middle layer steel beam and an upper layer steel beam to form a steel structure, arranging an upper layer stud connecting piece on the upper layer steel beam, and arranging a middle layer anti-pulling non-shearing connecting piece on the middle layer steel beam;
(2) mounting a support node at a corresponding position of the built steel structure;
(3) installing an anti-buckling support at the support node;
(4) pouring the middle concrete floor slab and the upper concrete floor slab to form a composite beam structure;
(5) and repeating the steps to complete the construction of each support frame unit.
Compared with the prior art, the invention has the beneficial effects that:
the cross-floor energy-consumption shock-absorption supporting frame structure provided by the invention can ensure the lateral rigidity and energy-consumption capability of the frame under the lateral force action of earthquake action and the like, and meanwhile, compared with a common X-shaped or herringbone supporting frame, the cross-floor energy-consumption shock-absorption supporting frame structure has lower occupancy rate to the building space, especially in a large-span frame structure with the span-height ratio exceeding 2.0, the cross-floor energy-consumption shock-absorption supporting frame structure can greatly reduce the influence on the size of the building opening, meanwhile, the system integrity is stronger, and the cross-floor energy-consumption shock-absorption supporting frame structure is more suitable for large high-rise buildings.
The buckling restrained brace in the energy-dissipation and shock-absorption brace frame structure spanning the floors is continuous, the frame beam is broken, and the frame beam provides stable lateral bracing for the buckling restrained brace, so that the stable energy-dissipation capability of the buckling restrained brace is further improved, and the energy-dissipation and shock-absorption brace frame structure spanning the floors is suitable for the condition that a huge buckling restrained brace needs to be used in a high-rise structure.
Drawings
The foregoing and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a schematic elevation view of a support frame structure provided by the present invention.
Description of reference numerals:
lower floor's braced frame unit 1, left steel frame post 2, right steel frame post 3, middle level girder steel 4, upper girder steel 5, middle level concrete floor 6, upper concrete floor 7, lower floor's buckling restrained brace 8, upper buckling restrained brace 9, lower floor's support node 10, middle level under bracing node 11, support node 12 on the middle level, upper support node 13, middle level resistance to plucking connecting piece 14 that does not shear, upper bolt connector 15, upper strata is available to be opened within a definite time 16, lower floor's available 17 of opening within a definite time, first position 18, second position 19, third position 20, fourth position 21.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
The energy-consuming and shock-absorbing support frame structure across floors and the construction method thereof according to the embodiment of the invention are described below with reference to the accompanying drawings.
As shown in fig. 1, the cross-floor energy dissipation and shock absorption support frame structure of the invention comprises a plurality of support frame units, and a K-shaped support frame is formed between the adjacent support frame units of the upper and lower layers.
As shown in fig. 1, the structure of the supporting frame unit of the present invention will be described by taking a supporting frame unit 1 as an example. The supporting frame unit is divided into a first zone bit 18, a second zone bit 19, a third zone bit 20 and a fourth zone bit 21, wherein the first zone bit 18 and the second zone bit 19 are positioned on the upper layer, and the first zone bit 18 is positioned on the left side of the second zone bit 19; the third zone 20 and the fourth zone 21 are located in the lower layer and the third zone 20 is located to the left of the fourth zone 21. This braced frame unit includes that two buckling restrained brace, buckling restrained brace set up in second position 19 and third position 20, first position 18 and fourth position 21 are available for opening a room, the buckling restrained brace that sets up in second position 19 arranges along the diagonal direction of second position 19, the buckling restrained brace that sets up in third position 20 arranges along the diagonal direction of third position 20, the buckling restrained brace that sets up in second position 19 and third position 20 wholly is a style of calligraphy setting.
As can be seen from fig. 1, the upper layer support frame unit differs from the lower layer support frame unit 1 in that: two buckling restrained brace settings of upper strata braced frame unit are in first position 18 and fourth position 21, and second position 19 and third position 20 are available for opening a room, and the buckling restrained brace that sets up in first position 18 arranges along the diagonal direction of first position 18, and the buckling restrained brace that sets up in fourth position 21 arranges along the diagonal direction of fourth position 21, and the buckling restrained brace that sets up in first position 18 and fourth position 21 wholly is a style of calligraphy setting.
Two buckling restrained braces of upper strata braced frame unit are a style of calligraphy and set up in first position 18 and fourth position 21, and two buckling restrained braces of lower floor's braced frame unit 1 are a style of calligraphy and set up in second position 19 and third position 20, and such structural design makes upper and lower two-layer adjacent braced frame unit form the K style of calligraphy braced frame who strides the layer.
The supporting frame unit further comprises a steel column and a steel beam, and the steel column and the steel beam are matched to form a frame structure.
Wherein, the steel column setting is in the left and right sides, and the steel column is including setting up left steel frame post 2 on the left side and setting up right steel frame post 3 on the right side. The girder steel setting is between left steel frame post 2 and right steel frame post 3, and the girder steel includes middle level girder steel 4 and upper girder steel 5, and upper girder steel 5 sets up in middle level girder steel 4 top. The both ends of middle level girder steel 4 respectively with left steel frame post 2 and right steel frame post 3 fixed connection, the both ends of upper girder steel 5 respectively with left steel frame post 2 and right steel frame post 3 fixed connection.
The middle layer steel beam 4 is connected with the middle layer concrete floor 6 through the middle layer anti-pulling non-shearing connecting piece 14, the middle layer steel beam 4 is connected with the middle layer concrete floor 6 to form a middle layer composite beam, and meanwhile, the restraint effect of the horizontal direction steel beam and the floor is released, so that the floor is prevented from being cracked under tension. The upper layer steel beam 5 is connected with the upper layer concrete floor 7 through the upper layer bolt connecting piece 15, and the upper layer steel beam 5 is connected with the upper layer concrete floor 7 to form an upper layer combined beam.
The two ends of the buckling-restrained brace are connected to the steel beam and the steel column through the support nodes. The buckling restrained brace is characterized in that two ends of the buckling restrained brace are fixedly connected with the brace nodes, and the brace nodes are fixedly arranged on the steel beam or the steel column, so that the buckling restrained brace is fixedly connected to the steel beam and the steel column.
Taking the lower layer supporting frame unit 1 as an example, as shown in fig. 1, the lower layer buckling restrained brace 8 is disposed at the third location 20, the upper layer buckling restrained brace 9 is disposed at the second location 19, and the lower layer buckling restrained brace 8 and the upper layer buckling restrained brace 9 are disposed in a straight line shape. The both ends of lower floor's buckling restrained brace 8 are connected lower floor's support node 10 and middle level under bracing node 11 respectively, and lower floor's support node 10 sets up in left side steel column lower extreme position, and middle level under bracing node 11 sets up on middle level girder steel 4. Two ends of the upper-layer buckling-restrained brace 9 are respectively connected with a middle-layer upper supporting node 12 and an upper-layer supporting node 13, the middle-layer upper supporting node 12 is arranged on the middle-layer steel beam 4, and the upper-layer supporting node 13 is arranged at the upper end position of the right steel column. The first location 18 and the fourth location 21 are available bays, specifically, the first location 18 is an upper available bay 16, and the fourth location 21 is a lower available bay 17.
A construction method of a cross-floor energy dissipation and shock absorption supporting frame structure comprises the following steps:
(1) constructing a left steel frame column, a right steel frame column, a middle-layer steel beam and an upper-layer steel beam to form a steel structure, arranging an upper-layer stud connecting piece on the upper-layer steel beam, and arranging a middle-layer anti-pulling non-shearing connecting piece on the middle-layer steel beam;
(2) mounting a support node at a corresponding position of the built steel structure;
(3) installing buckling restrained braces at the bracing nodes;
(4) pouring the middle-layer concrete floor slab and the upper-layer concrete floor slab to form a composite beam structure;
(5) and repeating the steps to finish the construction of each support frame unit.
The left steel frame column 2, the right steel frame column 3, the middle layer steel beam 4 and the upper layer steel beam 5 are matched to form a steel structure, an upper layer bolt connecting piece 15 is arranged on the upper layer steel beam 5, the upper layer bolt connecting piece 15 is used for connecting the upper layer steel beam 5 and the upper layer concrete floor 7, and the upper layer steel beam 5 and the upper layer concrete floor 7 are connected to form an upper layer combination beam; the middle-layer steel beam 4 is provided with a middle-layer anti-pulling non-shearing connector 14, the middle-layer anti-pulling non-shearing connector 14 is used for connecting the middle-layer steel beam 4 and the middle-layer concrete floor 6, the middle-layer steel beam 4 and the middle-layer concrete floor 6 are connected to form a middle-layer composite beam, and meanwhile, the restraint effect of the horizontal-direction steel beam and the floor is released, so that the floor is prevented from being cracked under tension.
And mounting support nodes at corresponding positions of the steel structure, specifically mounting the support nodes according to the setting rule of the buckling restrained brace. And after the support node is installed, the buckling-restrained brace can be correspondingly installed.
And pouring after the anti-buckling support is installed, and pouring the middle-layer concrete floor slab 6 and the upper-layer concrete floor slab 7 to respectively form a middle-layer composite beam structure and an upper-layer composite beam structure.
And repeating the steps to finish the construction of each support frame unit. The upper layer of supporting frame unit and the lower layer of supporting frame unit are arranged on the same plane, and then the supporting frame units are inclined towards the other side.
The invention adopts a lateral support mode, at least half of the building space in one support frame unit is completely not influenced by the buckling-restrained brace, and the use of X-shaped or herringbone supports in other floors limits the height and width of the whole floor bay.
The supporting frame structure system can ensure the lateral stiffness and the energy consumption capability of the frame under the lateral force action of earthquake action and the like, has lower occupancy rate on building space compared with a common X-shaped or herringbone supporting frame, and can greatly reduce the influence on the size of a building bay particularly in a large-span frame structure with the span-height ratio exceeding 2.0.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, schematic representations of the above terms may be directed to different embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (7)
1. The energy-consuming and shock-absorbing support frame structure is characterized by comprising a plurality of support frame units, wherein the support frame units are divided into a first zone bit, a second zone bit, a third zone bit and a fourth zone bit, each support frame unit comprises two buckling-restrained supports which are arranged in a straight shape, the buckling-restrained supports are arranged in the first zone bit and the fourth zone bit or the buckling-restrained supports are arranged in the second zone bit and the third zone bit, and the upper layer and the lower layer of the adjacent support frame units form a K-shaped support frame.
2. The support frame structure of claim 1, wherein the support frame unit further comprises:
the steel columns are arranged on two sides and comprise a left steel frame column arranged on the left side and a right steel frame column arranged on the right side;
the steel beam is arranged between the left steel frame column and the right steel frame column and comprises a middle steel beam and an upper steel beam, and the upper steel beam is arranged above the middle steel beam.
3. A support frame structure as claimed in claim 2, wherein the mid-level steel beams are connected to the mid-level concrete floor by mid-level uplift and non-shear connectors.
4. A support frame structure according to claim 2, wherein the upper steel beams are connected to the upper concrete floor by upper stud connections.
5. The support frame structure of claim 2, wherein the buckling restrained brace has two ends connected to a support node.
6. A support frame structure according to claim 5 wherein the support nodes are fixedly provided on steel beams or columns.
7. A method of constructing a cross-storey energy dissipating and shock absorbing support frame structure, adapted to the support frame structure of any of claims 1 to 6, comprising the steps of:
(1) constructing a left steel frame column, a right steel frame column, a middle layer steel beam and an upper layer steel beam to form a steel structure, arranging an upper layer stud connecting piece on the upper layer steel beam, and arranging a middle layer anti-pulling non-shearing connecting piece on the middle layer steel beam;
(2) mounting a support node at a corresponding position of the built steel structure;
(3) installing an anti-buckling support at the support node;
(4) pouring the middle concrete floor slab and the upper concrete floor slab to form a composite beam structure;
(5) and repeating the steps to finish the construction of each support frame unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202210179798.5A CN114658123A (en) | 2022-02-25 | 2022-02-25 | Cross-floor energy dissipation and shock absorption supporting frame structure and construction method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210179798.5A CN114658123A (en) | 2022-02-25 | 2022-02-25 | Cross-floor energy dissipation and shock absorption supporting frame structure and construction method thereof |
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| CN202416619U (en) * | 2011-12-23 | 2012-09-05 | 卢锐 | Buckling-preventive energy-dissipating supporting device of building frame structure |
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Application publication date: 20220624 |