CN111749333B - A window-type grid-supported multi-lateral force-resisting braced frame - Google Patents
A window-type grid-supported multi-lateral force-resisting braced frame Download PDFInfo
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- CN111749333B CN111749333B CN202010740428.5A CN202010740428A CN111749333B CN 111749333 B CN111749333 B CN 111749333B CN 202010740428 A CN202010740428 A CN 202010740428A CN 111749333 B CN111749333 B CN 111749333B
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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
- E04B1/24—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of metal
- E04B1/2403—Connection details of the elongated load-supporting parts
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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
- E04B1/30—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts being composed of two or more materials; Composite steel and concrete constructions
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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
- E04B1/5806—Connections for building structures in general of bar-shaped building elements with a cross-section having an open profile
- E04B1/5812—Connections for building structures in general of bar-shaped building elements with a cross-section having an open profile of substantially I - or H - form
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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
- E04B1/5825—Connections for building structures in general of bar-shaped building elements with a closed cross-section
-
- 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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- 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
-
- 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
- E04B1/24—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of metal
- E04B1/2403—Connection details of the elongated load-supporting parts
- E04B2001/2406—Connection nodes
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Environmental & Geological Engineering (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
Abstract
A pane type grid support multiple lateral force resisting support frame comprises upright posts, cross beams and grid support components, wherein the two upright posts are arranged in parallel, a plurality of cross beams are vertically arranged between the two upright posts at equal intervals, the two upright posts are separated into a plurality of rectangular frames, and the support components are fixedly arranged in each rectangular frame. According to the grid support system, grid beams are formed by optimizing the grid form, the frame height is indirectly reduced, the calculated length of the support rod pieces is effectively reduced, the support rod pieces are small in slenderness ratio, the buckling resistance is good, buckling damage of the support rod pieces is not easy to occur, and the buckling damage of the support rod pieces is easy to control.
Description
Technical Field
The invention belongs to the technical field of side force resistant support frames, and particularly relates to a pane type grid support multiple side force resistant support frame.
Background
The steel structure building can be manufactured in a factory and installed on site, so that the construction period can be greatly reduced, steel in the steel structure building can be recycled, the construction waste can be greatly reduced, and the steel structure building is more environment-friendly, so that the steel structure building is widely applied to industrial buildings and civil buildings. There is an urgent need for new technology to support the design and construction of multi-story high-rise buildings.
For steel structures, as the height of high-rise and super high-rise houses increases, the influence of side load effects (including earthquake action, wind load and the like) is prominent, so that the side force resistance and the shock resistance of the structure are generally improved through side force resistant members, and a steel frame-supporting system is a common system in multi-high-rise steel structures.
In order to improve the side rigidity and the side bearing capacity of the building, the existing steel structure building generally adopts large supporting members and other members, has poor ductility, and particularly under the action of reciprocating horizontal earthquake, when the stress of the structure enters an elastoplastic range, the shearing resistance of floors and the side rigidity of the structure are rapidly reduced, the interlayer lateral movement is excessively increased, and finally the integral instability and the damage of the structure are caused. The existing side force resistant member affects the beautiful appearance of the building, affects the installation of the wall body, and cannot achieve organic unification with the enclosure.
Disclosure of Invention
The invention aims to provide a pane type grid support multiple lateral force resisting support frame so as to solve the problems.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
A pane type grid support multiple lateral force resisting support frame comprises upright posts, cross beams and grid support components, wherein the two upright posts are arranged in parallel, a plurality of cross beams are vertically arranged between the two upright posts at equal intervals, the two upright posts are separated into a plurality of rectangular frames, and the support components are fixedly arranged in each rectangular frame.
The grid support assembly comprises a support upright post, a support cross beam, a herringbone support, a long inclined support and a short inclined support, wherein two symmetrical support upright posts are vertically arranged between an upper cross beam and a lower cross beam of the rectangular frame, two symmetrical support cross beams are vertically arranged on the two support upright posts to form an inner rectangular frame, the long inclined support is fixedly arranged along the diagonal line of the inner rectangular frame, the short inclined support is outwards arranged at four corners of the inner rectangular frame in an extending welding mode, the short inclined support is arranged along the diagonal line of the rectangular frame, and the herringbone support is welded at the outer sides of the two support cross beams to form the grid support assembly.
Further, the herringbone support comprises two short inclined supports, and the two short inclined supports are welded to form a herringbone shape.
Furthermore, the top point of the herringbone support, the end part of the short inclined support and the two ends of the supporting upright post are respectively provided with an end plate, the supporting upright post is connected with the cross beam through the end plates by bolts, and the end plates of the herringbone support and the short inclined support are respectively provided with a force transmission plate.
Further, node plates are arranged at the four inner corners of the rectangular frame and at the middle points of the cross beams, matched bolt holes are formed in the node plates and the force transmission plates, and the node plates are fixedly connected with the force transmission plates through bolts.
Further, the upright posts are rectangular steel pipe columns, round steel pipe columns, rectangular steel pipe concrete columns or round steel pipe concrete columns, and the cross beams are I-shaped steel beams.
Further, the support upright post, the support cross beam, the long inclined support and the short inclined support are square steel pipes, round steel pipes, I-steel supports, T-steel supports, L-steel supports, groove-shaped steel supports, cross-shaped steel supports or L-shaped steel supports.
Compared with the prior art, the invention has the following technical effects:
According to the grid support system, grid beams are formed by optimizing the grid form, the frame height is indirectly reduced, the calculated length of the support rod pieces is effectively reduced, the support rod pieces are small in slenderness ratio, the buckling resistance is good, buckling damage of the support rod pieces is not easy to occur, and the buckling damage of the support rod pieces is easy to control.
The grid support structure has the advantages that the rigidity degradation is slow, the earthquake resistance and the energy consumption are facilitated, the support force is discretized into a plurality of rod pieces, after one rod piece is damaged, the internal force is redistributed, the rigidity of other rod pieces can still be provided, the rigidity degradation of the whole structure is slow, and the ductility performance is better. While still having a greater stiffness and load carrying capacity.
The cross section of the grid supporting structure is small in size, and is easier to hide in the maintenance wallboard, so that the integration of the enclosure structure is realized.
The grid support can be prefabricated in a factory and is connected with the frame through bolts, so that the assembly and assembly speed of the structure are improved, the grid support is fully suitable for the requirements and the characteristics of an assembled steel structure, and the requirement of the development of an assembled building is met.
The structure is simple, the installation, the replacement and the transportation are convenient, the grid support can be assembled in a separated way, and the grid support can be integrally hoisted, so that the assembly is easy to realize.
Drawings
FIG. 1 is a detailed view of the frame of the present invention;
FIG. 2 is an exploded detail view of the grid support of the present invention;
FIG. 3 is a detailed view of the grid support of the present invention;
FIG. 4 is a detailed view of the node connection of the present invention;
FIG. 5 is a schematic view of the overall structure of the present invention;
FIGS. 6 (a) - (c) are schematic illustrations of the yield failure process of the present invention;
FIG. 7 is a load displacement diagram of the present invention;
Detailed Description
The invention is further described below with reference to the accompanying drawings:
Referring to fig. 1 to 7, a pane type grid support multiple lateral force resisting support frame comprises upright posts 1, cross beams 2 and grid support components, wherein the two upright posts 1 are arranged in parallel, a plurality of cross beams 2 are vertically arranged between the two upright posts 1 at equal intervals, the two upright posts 1 are separated into a plurality of rectangular frames, and the support components are fixedly arranged in each rectangular frame.
The grid support assembly comprises support columns 11, support beams 13, herringbone supports 12, long inclined supports 14 and short inclined supports 10, two symmetrical support columns 11 are vertically arranged between the upper and lower cross beams 2 of the rectangular frame, two symmetrical support beams 13 are vertically arranged on the two support columns 11 to form an inner rectangular frame, the long inclined supports 14 are fixedly arranged along diagonal lines of the inner rectangular frame, the short inclined supports 10 are outwards arranged at four corners of the inner rectangular frame in an extending welding mode, the short inclined supports 10 are arranged along the diagonal lines of the rectangular frame, and the herringbone supports 12 are welded on the outer sides of the two support cross beams 13 to form the grid support assembly. The grid support system forms the grid beams by optimizing the grid form, so that the height of the frame is indirectly reduced, the calculated length of the support rod pieces is effectively reduced, the length ratio of the support rod pieces is small, the buckling resistance is good, buckling damage of the support rod pieces is not easy to occur, and the buckling damage of the support rod pieces is easy to control.
The grid support structure has the advantages that the rigidity degradation is slow, the earthquake resistance and the energy consumption are facilitated, the support force is discretized into a plurality of rod pieces, after one rod piece is damaged, the internal force is redistributed, the rigidity of other rod pieces can still be provided, the rigidity degradation of the whole structure is slow, and the ductility performance is better. While still having a greater stiffness and load carrying capacity.
The herringbone support 12 comprises two short diagonal braces 10, the two short diagonal braces 10 being welded to form a herringbone.
The top point of the herringbone support 12, the end part of the short inclined support 10 and the two ends of the supporting upright post 11 are respectively provided with an end plate 6, the supporting upright post 11 is connected with the cross beam 2 through the end plates 6 through bolts, and the herringbone support 12 and the end plates 6 of the short inclined support 10 are respectively provided with a force transmission plate 5.
The joint plates 3 are arranged at the four inner corners of the rectangular frame and at the middle points of the cross beams 2, matched bolt holes are formed in the joint plates 3 and the force transfer plates 5, and the joint plates 3 and the force transfer plates 5 are fixedly connected through bolts.
The upright column 1 is a rectangular steel pipe column, a round steel pipe column, a rectangular steel pipe concrete column or a round steel pipe concrete column, and the cross beam 2 is an I-shaped steel beam.
The support upright post 11, the support cross beam 13, the long inclined support 14 and the short inclined support 10 are square steel pipes, round steel pipes, I-steel supports, T-steel supports, L-steel supports, groove-shaped steel supports, cross-shaped steel supports or L-shaped steel supports.
As shown in the detailed view of the frame of the invention in fig. 1, the single-span two-layer frame consists of two upright posts 1 and two beams 2, wherein the two upright posts are vertically arranged, and two ends of a cross beam are welded on the upright posts. The frame is provided with bolt holes at the connection position of the beam and the supporting upright post, and the node plates are welded at the connection position of the frame and the supporting grid through the node plates and the force transmission plates.
Referring to fig. 2 and 3, the grid support of the present invention is an exploded detail view and a detail view of the grid support of the present invention, and the grid support includes a short diagonal support 10, a support column 11, a herringbone support 12, a support beam 13, and a long diagonal support 14. The grid support formed is prefabricated at the factory.
Referring to fig. 4, which is a detailed view of the joint connection of the present invention, the support columns 11 are connected by bolts of the end plates and the beam flanges, the herringbone supports are connected by bolts of the force transfer plates and the frame joint plates, and the short diagonal supports 10 are connected by bolts of the force transfer plates 5 and the frame joint plates 3.
Referring to fig. 5, the overall structure of the present invention is schematically shown, in which the grid support is connected to the frame by bolts through the connection means shown in fig. 3 and 4.
The pane type grid support multiple lateral force resistant support frame unit effectively reduces the length and the size of the rod piece and improves the lateral force resistant stability and the structural ductility of a building. The grid support units are connected with the structure through bolts, so that the assembly and assembly speed of the structure are improved.
The mechanical properties of the window grid support multiple lateral force resistant support frame unit are described below by finite element simulation of the present invention.
Finite element simulation was performed on the support frames using ABAQUS software, the frame beams were 400×200×8×12, the frame columns were 350×350×14, the support columns were 120×120×6, and the support bar sizes excluding the support columns were 60×60×6, and the results of the finite element analysis are shown in fig. 6 and 7.
Due to the adoption of grid support, the ductility and the anti-seismic performance of the structure are good. The grid support breaking sequence is shown in fig. 6 (a) - (c), when the diagonal braces in the grid support are pressed along with the increase of the vertex displacement, the diagonal braces firstly yield, after the pressed diagonal brace members are broken, the diagonal braces are redistributed by internal force, other members continue to bear and still provide rigidity, the rigidity degradation of the whole structure is ensured to be slower, the peripheral grid is broken at the load increase, the frame is broken, and the final breaking of the whole structure is shown in fig. 6 (c).
According to the design principle of the anti-seismic concept, the invention provides a pane type grid support multi-lateral-force-resistant support frame unit, the support firstly consumes energy through elastoplastic deformation under the action of an earthquake, meanwhile, the grid support is discretized into a plurality of rod pieces, after a certain rod piece is damaged, the internal force is redistributed, other rod pieces can still provide rigidity, the rigidity of the whole structure is degraded slowly, and the ductility performance is better. In addition, the size of the support rod piece is greatly reduced while the support rod piece has high rigidity, bearing capacity and ductility, and the support rod piece is beneficial to being hidden in a wall body. The load displacement diagram is shown in fig. 7, and the grid support has good energy consumption capability, so that the ductility and lateral force resistance of the structure are improved.
While the invention has been described in detail in connection with what is presently considered to be the most practical and preferred embodiment, it is to be understood that the invention is not limited to the disclosed embodiment, but on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims.
Claims (4)
1. The pane type grid support multiple lateral force resisting support frame is characterized by comprising upright posts (1), cross beams (2) and grid support components, wherein the two upright posts (1) are arranged in parallel, a plurality of cross beams (2) are vertically arranged between the two upright posts (1) at equal intervals, and the two upright posts (1) are separated into a plurality of rectangular frames;
The grid support assembly comprises support columns (11), support beams (13), herringbone supports (12), long inclined supports (14) and short inclined supports (10), wherein two symmetrical support columns (11) are vertically arranged between an upper cross beam (2) and a lower cross beam (2) of the rectangular frame, two symmetrical support beams (13) are vertically arranged on the two support columns (11) to form an inner rectangular frame, the long inclined supports (14) are fixedly arranged along diagonal lines of the inner rectangular frame, the short inclined supports (10) are outwards arranged at four corners of the inner rectangular frame in an extending and welding mode, and the short inclined supports (10) are arranged along the diagonal lines of the rectangular frame;
the herringbone support (12) comprises two short inclined supports (10), and the two short inclined supports (10) are welded to form a herringbone shape;
The end of the short inclined support (10) at the top of the herringbone support (12) and the two ends of the support upright post (11) are respectively provided with an end plate (6), the support upright post (11) is connected with the cross beam (2) through the end plates (6) through bolts, and the herringbone support (12) and the end plates (6) of the short inclined support (10) are respectively provided with a force transmission plate (5).
2. The pane type grid support multiple lateral force resistant support frame is characterized in that node plates (3) are arranged at the inner four corners of the rectangular frame and at the middle points of the cross beams (2), matched bolt holes are formed in the node plates (3) and the force transmission plates (5), and the node plates (3) and the force transmission plates (5) are fixedly connected through bolts.
3. The pane type grid support multiple lateral force resistant support frame according to claim 1 is characterized in that the upright post (1) is a rectangular steel pipe column, a round steel pipe column, a rectangular steel pipe concrete column or a round steel pipe concrete column, and the cross beam (2) is an I-shaped steel beam.
4. A pane grid support multiple lateral force resistant support frame according to claim 1, characterized in that the support uprights (11), the support cross-beams (13), the long diagonal support (14) and the short diagonal support (10) are all square steel tubes, round steel tubes, i-steel supports, T-steel supports, L-steel supports, channel steel supports, cross-steel supports or L-steel supports.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010740428.5A CN111749333B (en) | 2020-07-28 | 2020-07-28 | A window-type grid-supported multi-lateral force-resisting braced frame |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010740428.5A CN111749333B (en) | 2020-07-28 | 2020-07-28 | A window-type grid-supported multi-lateral force-resisting braced frame |
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| CN111749333A CN111749333A (en) | 2020-10-09 |
| CN111749333B true CN111749333B (en) | 2025-02-14 |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107965068A (en) * | 2018-01-05 | 2018-04-27 | 沈阳建筑大学 | A kind of light gauge cold-formed steel shape assembled wall diagonal brace and keel frame connecting structure |
| CN212317155U (en) * | 2020-07-28 | 2021-01-08 | 西安建筑科技大学 | Pane type grid supported multi-lateral force resisting support frame |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7797907B2 (en) * | 1997-04-14 | 2010-09-21 | Timmerman Timothy L | Lateral force resisting system |
| DE19832951A1 (en) * | 1998-07-22 | 1999-09-02 | Melhorn | Steel-framed building for earthquake zones |
| US6460297B1 (en) * | 1999-12-21 | 2002-10-08 | Inter-Steel Structures, Inc. | Modular building frame |
| WO2011161677A1 (en) * | 2010-06-21 | 2011-12-29 | Bezalel Laboratories Ltd. | Impact resistant structure |
| IN2015MU02042A (en) * | 2015-05-26 | 2015-06-05 | Yashraj Mahesh | |
| CN106759893B (en) * | 2017-01-18 | 2022-11-04 | 鞍钢中电建筑科技股份有限公司 | Assembled steel structure |
| CN111321808A (en) * | 2018-12-14 | 2020-06-23 | 上海宝钢建筑工程设计有限公司 | Fast assembly's full assembled steel house room system |
| CN111021572A (en) * | 2019-12-30 | 2020-04-17 | 鞍钢中电建筑科技股份有限公司 | Metal damping type energy consumption K-bracing module type anti-side unit |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107965068A (en) * | 2018-01-05 | 2018-04-27 | 沈阳建筑大学 | A kind of light gauge cold-formed steel shape assembled wall diagonal brace and keel frame connecting structure |
| CN212317155U (en) * | 2020-07-28 | 2021-01-08 | 西安建筑科技大学 | Pane type grid supported multi-lateral force resisting support frame |
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