CN111519762A - Cantilever truss structure system - Google Patents
Cantilever truss structure system Download PDFInfo
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- CN111519762A CN111519762A CN202010431730.2A CN202010431730A CN111519762A CN 111519762 A CN111519762 A CN 111519762A CN 202010431730 A CN202010431730 A CN 202010431730A CN 111519762 A CN111519762 A CN 111519762A
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- truss
- cantilever
- overhanging
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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
- E04B1/34—Extraordinary structures, e.g. with suspended or cantilever parts supported by masts or tower-like structures enclosing elevators or stairs; Features relating to the elastic stability
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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
- E04B1/34—Extraordinary structures, e.g. with suspended or cantilever parts supported by masts or tower-like structures enclosing elevators or stairs; Features relating to the elastic stability
- E04B1/3404—Extraordinary structures, e.g. with suspended or cantilever parts supported by masts or tower-like structures enclosing elevators or stairs; Features relating to the elastic stability supported by masts or tower-like structures
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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
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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)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Rod-Shaped Construction Members (AREA)
Abstract
The invention relates to an overhanging truss structure system which comprises an end overhanging truss (1), a middle overhanging truss (2), an end ring truss (3), a floor short-span overhanging truss (4), an edge sealing truss (5) and a support column (6), wherein the edge sealing truss (5) is respectively supported on the end overhanging truss (1), the middle overhanging truss (2) and the end ring truss (3), the floor short-span overhanging truss (4) is arranged between the end overhanging truss (1) and the end ring truss (3), the bottom of each truss is rigidly connected with the support column (6), and each truss forms an integral space stress structure. Compared with the prior art, the invention has the advantages of realizing super-large span building overhang, improving the lateral stiffness and torsional stiffness of the structure, meeting the requirements of relevant earthquake fortification and the like.
Description
Technical Field
The invention relates to the field of building structures, in particular to an overhanging truss structure system.
Background
With the continuous development of social economy, the requirements of people on building aesthetics are higher, and buildings such as science and technology venues, movie and television theaters, convention and exhibition centers and the like start to use a large number of cantilevered building forms to realize rich shapes. The cantilever truss has the characteristics of large span and complex modeling, the stability and the safety of the cantilever truss are the keys of design and construction, and the structural design of the cantilever truss is an important ring for constructing an outer cantilever structure and a long-span cantilever structure.
For buildings with span of less than 20 m, the adopted structural forms include steel-concrete composite structures, prestressed structures and the like. For the buildings with the cantilever span of more than 20 meters, the structural form has certain limitation on applicability. In addition, the structural style can not meet the structural requirements of seismic fortification and the like of super-large span buildings.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide an overhanging truss structure system which can be used as an overhanging of a super-large-span building, can realize the building shape of the super-large overhanging span in a high-intensity area, and can realize perfect integration of the building and the structure while meeting the structural requirements of the super-large-span building such as earthquake fortification and the like.
The purpose of the invention can be realized by the following technical scheme:
the utility model provides a truss structure system of encorbelmenting, includes that the tip encorbelments truss, middle part truss, end ring truss, floor short span truss, banding truss and support column of encorbelmenting, the banding truss supports respectively on the tip truss of encorbelmenting, middle part truss and the end ring truss of encorbelmenting, the floor short span truss of encorbelmenting is located in the middle of tip truss and the end ring truss of encorbelmenting, and the bottom rigid connection support column of each truss, each truss form whole space stress structure. Each cantilever truss is arranged at the floor through height.
The middle cantilever truss is arranged between the end cantilever truss and the end ring truss, and the end cantilever truss, the middle cantilever truss and the end ring truss are arranged in the same side direction of the edge sealing truss and are respectively used as a supporting foundation of the edge sealing truss.
The height of the middle cantilever truss is not more than the height of the floor on which the middle cantilever truss is arranged. The span of the end cantilever truss, the middle cantilever truss and the end ring truss is not less than two spans. The two spans are the distance between three adjacent support columns. Preferably, the distance between two spans is 16-24 meters. The end cantilever truss, the middle cantilever truss and the compression web members of the end ring truss are supported by buckling constraints, so that the response of the structure under the action of an earthquake is reduced, and the requirements of related earthquake fortification are met.
Two rows the truss of encorbelmenting is striden to floor short-term sets up respectively at the front side top and the front side middle part of banding truss, the front side bottom of banding truss is equipped with the floor roof beam, and the height that highly is higher than the floor roof beam of truss is encorbelmented to floor short-term striding of floor, and the truss of encorbelmenting is striden to floor short-term can avoid structural component outstanding building surface, influences building pleasing to the eye. The bottom of the floor beam is rigidly connected with a support column.
Further, the floor structure on the floor beam adopts a steel bar truss floor bearing plate structure, is conveniently connected with a steel member, and can increase the rigidity of the floor.
Further, the high span ratio of the cantilever truss structure system is not less than 1/10.
Furthermore, the high span ratio of the cantilever truss structure system is 1/4-1/6.
Furthermore, a row of floor beams are arranged on each support column at the bottom of the cantilever truss at the end part, and the floor beams are rigidly connected with the support columns to form a beam-column lateral force resisting system which is used for resisting horizontal forces such as wind load, earthquake action and the like.
Compared with the prior art, the invention has the following beneficial effects:
1) the edge sealing truss is respectively supported on the end overhanging truss, the middle overhanging truss and the end ring truss and is rigidly connected with the lower support column to form an integral space stress structure, so that a space stress effect can be provided, and the ultra-large span of building overhanging is realized;
2) the spatial staggered arrangement of the trusses can improve the lateral stiffness and torsional stiffness of the cantilever truss structure system;
3) according to the invention, the buckling restrained brace is arranged in each truss web member, so that the response of the structure under the action of an earthquake can be reduced, and the requirements of related earthquake fortification are met;
4) the floor short-span overhanging truss is arranged between the end overhanging truss and the end ring truss, so that the span of the edge sealing truss can be reduced, the steel consumption is reduced, and the structural reliability is improved;
5) the floor slab structure on the floor beam adopts a steel bar truss floor bearing plate structure, so that the floor slab structure is conveniently connected with a steel member, meanwhile, the rigidity of the floor slab can be increased, and the requirement on the comfort level of the floor slab is met;
6) the floor short span overhanging truss and the floor beam are arranged on the front side of the edge sealing truss and are arranged in parallel up and down, the floor short span overhanging truss is higher than the floor beam, and the floor beam can avoid the structural member from protruding out of the building surface to affect the building attractiveness.
Drawings
FIG. 1 is a schematic structural diagram of an overhanging truss structural system in an embodiment of the invention;
FIG. 2 is a schematic structural view of an end cantilever truss in an embodiment of the invention;
FIG. 3 is a schematic structural view of a middle cantilever truss in an embodiment of the invention;
FIG. 4 is a schematic structural view of an end ring truss in an embodiment of the invention;
FIG. 5 is a schematic structural view of a floor short span cantilever truss in the embodiment of the invention;
FIG. 6 is a schematic structural view of an edge banding truss in an embodiment of the present invention;
the reference numbers in the figures indicate:
1. a truss with an overhanging end; 2. a middle cantilever truss; 3. an end ring truss; 4. a floor short span cantilever truss; 5. edge sealing trusses; 6. a support pillar; 7. a floor beam.
Detailed Description
The invention is described in detail below with reference to the figures and specific embodiments. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, shall fall within the scope of protection of the present invention.
Examples
The embodiment relates to an overhanging truss structure system which can be used as an overhanging building with a super-large span, can realize the building shape of the super-large overhanging span in a high-intensity area, and realizes the perfect integration of the building and the structure.
As shown in fig. 1, the cantilever truss structure system comprises an end cantilever truss 1, a middle cantilever truss 2, an end ring truss 3, a floor short span cantilever truss 4, an edge sealing truss 5, a support column 6 and a floor beam 7. The edge sealing truss 5 is respectively supported on the end overhanging truss 1, the middle overhanging truss 2 and the end ring truss 3 and is rigidly connected with the lower support column 6 to form an integral space stress structure.
Specifically, one end of the edge banding truss 5 is connected to one side of the end part ring truss 3, and the other end is connected to one side of the end part cantilever truss 1; the front side of the edge sealing truss 5 is connected with the middle overhanging truss 2, the floor short span overhanging truss 4 and the floor beam 7. Two rows of floor short span overhanging trusses 4 are respectively arranged at the top of the front side and the middle of the front side of the edge sealing truss 5, the floor beam 7 is arranged at the bottom of the front side of the edge sealing truss 5, and the floor short span overhanging trusses 4 and the floor beam 7 are arranged in parallel up and down. Because of the floor short span truss 4 height of encorbelmenting is higher, and the height of floor roof beam 7 is lower, sets up floor roof beam 7's effect in the front side bottom of banding truss 5 and lies in can avoiding the structural component outstanding building surface, influences the building pleasing to the eye.
The bottom of the end cantilever truss 1, the middle cantilever truss 2, the end ring truss 3, the floor short span cantilever truss 4 and the floor beam 7 are respectively and rigidly connected with a support column 6. The middle cantilever truss 2 is arranged between the end cantilever truss 1 and the end ring truss 3, and the three are arranged on the same side and are respectively used as a supporting foundation of the edge banding truss 5. The height of the middle cantilever truss 2 is not larger than the height of the floor.
The span of the end cantilever truss 1, the middle cantilever truss 2 and the end ring truss 3 shown in fig. 2 to 4 should not be less than two spans, and in this embodiment, the two spans represent the distance between three adjacent support columns 6. The two-span truss is mainly used for balancing the overturning bending moment generated by the large-span cantilever part under the action of vertical load, and meets the requirement of structural stability. In this embodiment, the two spans are 16-24 meters.
The end cantilever truss 1, the middle cantilever truss 2 and the end ring truss 3 shown in the figures 2-4 have the pressed web members which can be supported by buckling constraints, so that the energy consumption capability of the cantilever truss structure under the action of an earthquake is improved, and the earthquake resistance of the cantilever truss structure is improved.
As shown in fig. 2, a row of floor beams 7 are also arranged on each support column 6 at the bottom of the end cantilever truss 1, and are used for being rigidly connected with the support columns 6 to form a beam-column lateral force resisting system to jointly resist horizontal forces such as wind load, earthquake action and the like.
The floor short span overhanging truss 4 shown in fig. 5 should be arranged between the end overhanging truss 1 and the end ring truss 3 to reduce the span of the edge sealing truss 5, thereby reducing the steel consumption and improving the structural reliability.
The edge banding truss shown in fig. 6 can be arranged according to building modeling and curtain wall structures, so that building aesthetic effects are improved, and integration of buildings and structures is realized.
The cantilever truss structure system shown in fig. 1 is suitable for being arranged at the floor in a high-rise mode, and the truss height-span ratio is not smaller than 1/10, preferably 1/4-1/6, so that the cantilever truss structure system is used for increasing the structural rigidity of the cantilever truss and meeting the requirements of deflection, comfort and the like.
In this embodiment, as preferred scheme, the floor structure on the floor roof beam 7 adopts steel bar truss building carrier plate structure, and the floor structure at the position of encorbelmenting greatly should adopt steel bar truss building carrier plate structure, and convenient and steel member connection can increase floor rigidity simultaneously, satisfies floor comfort level requirement.
The edge sealing truss is respectively supported on the end overhanging truss, the middle overhanging truss and the end ring truss and is rigidly connected with the lower support column to form an integral space stress structure, so that a space stress effect can be provided, and the ultra-large span of building overhanging is realized; the spatial staggered arrangement of the trusses can improve the lateral stiffness and torsional stiffness of the cantilever truss structure system; the floor short-span overhanging truss is arranged between the end overhanging truss and the end ring truss, so that the span of the edge sealing truss can be reduced, the steel consumption is reduced, and the structural reliability is improved.
While the invention has been described with reference to specific embodiments, the invention is not limited thereto, and those skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope of the invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. The utility model provides a truss structure system encorbelments, its characterized in that, includes tip truss (1), the middle part truss (2), the end ring truss (3) encorbelments, floor short span truss (4), banding truss (5) and support column (6) encorbelment, banding truss (5) support respectively on tip truss (1), the middle part truss (2) and the end ring truss (3) encorbelment, floor short span truss (4) of encorbelmenting is located tip truss (1) and the end ring truss (3) centre of encorbelmenting, the bottom rigid connection support column (6) of each truss, and each truss forms whole space stress structure.
2. The cantilever truss structure system according to claim 1, wherein the middle cantilever truss (2) is arranged between the end cantilever truss (1) and the end ring truss (3), and the end cantilever truss (1), the middle cantilever truss (2) and the end ring truss (3) are arranged in the same side direction of the edge-sealing truss (5) and respectively serve as a supporting foundation of the edge-sealing truss (5).
3. The cantilever truss structure system of claim 1, wherein each cantilever truss of the cantilever truss structure system is elevated at a floor.
4. The cantilever truss structure system according to claim 3, wherein two rows of the floor short-span cantilever trusses (4) are respectively arranged at the top and the middle of the front side of the edge sealing truss (5), the bottom of the front side of the edge sealing truss (5) is provided with a floor beam (7), and the floor short-span cantilever trusses (4) and the floor beam (7) are arranged in an up-and-down parallel manner.
5. An overhanging truss structure system as claimed in claim 1 wherein the height of the middle overhanging truss (2) is not greater than the corresponding floor height, and the span of the end overhanging truss (1), the middle overhanging truss (2), the end ring truss (3) is not less than two spans.
6. An overhanging truss structure system as claimed in claim 1 wherein the compression web members of the end overhanging truss (1), the middle overhanging truss (2) and the end ring truss (3) are supported with buckling constraints.
7. An overhanging truss structure system as claimed in claim 4 wherein the floor structure on the floor beams (7) is a steel bar truss floor deck structure.
8. The cantilever truss structure system of claim 5, wherein the cantilever truss structure system has a pitch ratio of not less than 1/10.
9. The cantilever truss structure of claim 8, wherein the cantilever truss structure has a high span ratio of 1/4-1/6.
10. An overhanging truss structure system as claimed in claim 5 wherein the distance between spans is 16 to 24 metres.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010431730.2A CN111519762A (en) | 2020-05-20 | 2020-05-20 | Cantilever truss structure system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010431730.2A CN111519762A (en) | 2020-05-20 | 2020-05-20 | Cantilever truss structure system |
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| Publication Number | Publication Date |
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| CN111519762A true CN111519762A (en) | 2020-08-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010431730.2A Pending CN111519762A (en) | 2020-05-20 | 2020-05-20 | Cantilever truss structure system |
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| CN (1) | CN111519762A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112443043A (en) * | 2020-11-25 | 2021-03-05 | 浙大城市学院 | Multilayer through-height large-space cantilever truss structure with embedded small orthotropic truss and application |
| CN112459316A (en) * | 2020-11-25 | 2021-03-09 | 浙大城市学院 | Vertical long cantilever truss structure for spiral ascending type curtain wall support and application |
| CN113931315A (en) * | 2021-09-17 | 2022-01-14 | 中国航空规划设计研究总院有限公司 | Annular outward-overhanging oblique-crossing grid structure system and building |
-
2020
- 2020-05-20 CN CN202010431730.2A patent/CN111519762A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112443043A (en) * | 2020-11-25 | 2021-03-05 | 浙大城市学院 | Multilayer through-height large-space cantilever truss structure with embedded small orthotropic truss and application |
| CN112459316A (en) * | 2020-11-25 | 2021-03-09 | 浙大城市学院 | Vertical long cantilever truss structure for spiral ascending type curtain wall support and application |
| CN112459316B (en) * | 2020-11-25 | 2021-10-12 | 浙大城市学院 | Vertical long cantilever truss structure for spiral ascending type curtain wall support and application |
| CN112443043B (en) * | 2020-11-25 | 2022-02-22 | 浙大城市学院 | Multilayer through-height large-space cantilever truss structure with embedded small orthotropic truss and application |
| CN113931315A (en) * | 2021-09-17 | 2022-01-14 | 中国航空规划设计研究总院有限公司 | Annular outward-overhanging oblique-crossing grid structure system and building |
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