CN116695875A - Novel assembled cold-formed steel frame-X-shaped supporting structure - Google Patents
Novel assembled cold-formed steel frame-X-shaped supporting structure Download PDFInfo
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- CN116695875A CN116695875A CN202310774094.7A CN202310774094A CN116695875A CN 116695875 A CN116695875 A CN 116695875A CN 202310774094 A CN202310774094 A CN 202310774094A CN 116695875 A CN116695875 A CN 116695875A
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- steel
- energy consumption
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 84
- 239000010959 steel Substances 0.000 title claims abstract description 84
- 238000005265 energy consumption Methods 0.000 claims abstract description 26
- 230000021715 photosynthesis, light harvesting Effects 0.000 claims description 11
- 238000010079 rubber tapping Methods 0.000 claims description 11
- 238000005452 bending Methods 0.000 claims description 6
- 238000005096 rolling process Methods 0.000 claims description 2
- 238000010276 construction Methods 0.000 abstract description 8
- 238000003466 welding Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000009417 prefabrication Methods 0.000 abstract description 2
- 238000010008 shearing Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 239000003351 stiffener Substances 0.000 description 3
- 230000004075 alteration Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
Classifications
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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
-
- 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
-
- 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
- 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
-
- 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
- E04B2001/2448—Connections between open section profiles
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
Abstract
The invention provides a novel assembled cold-formed steel frame-X-shaped supporting structure. The X-shaped support with the energy consumption section inside the structure consists of 4I-shaped cold-formed steel supports and the energy consumption section. The energy consumption section consists of energy consumption plates and annular stiffening ribs welded on the periphery. Under the action of earthquake load, the energy consumption section with lower yield strength enters plastic energy consumption before members such as beams and columns, so that the energy consumption capacity of the structure is improved, the members such as the beams and the columns are prevented from being subjected to larger plastic deformation, and the restorability of the structure is improved. All components in the structure can be recycled, dismantled and recovered, and construction procedures such as welding and the like are omitted on site, so that the structure has the advantages of short construction period, good durability, sustainability and the like, and is beneficial to house industrialization and prefabrication assembly.
Description
Technical Field
The invention relates to the field of cold-formed steel structures, in particular to a novel assembled cold-formed steel frame-X-shaped supporting structure.
Background
The cold-formed steel structure is an assembled light steel building system and has the advantages of short construction period, environmental protection, comfort, good durability, sustainability and the like. In the cold-formed steel structure, a wall body formed by cold-formed steel upright posts, upper and lower guide rails and light plates is called a combined wall body, and is a main bearing and side force resisting member of the structure.
However, under the basic requirement of popularizing the cold-formed steel structure to multiple high layers, the traditional cold-formed steel structure lateral force resistant member-combined wall body has the problems of low shearing bearing capacity, weak energy consumption capacity and the like. The performance of the cold-formed steel structure under the action of strong vibration is always the core problem of structural design. A large number of experimental researches show that the shearing bearing capacity and the energy consumption capability of the combined wall are poor, and the earthquake-proof requirement of the multi-layer cold-formed steel structure in a high-intensity area is difficult to meet. The improvement of the anti-seismic performance of the side force resistant member is a necessary path for promoting the development of the multi-layer cold-formed steel structure.
Therefore, development of a novel fabricated cold-formed steel frame-X-shaped supporting structure is needed.
Disclosure of Invention
The invention aims to provide a novel assembled cold-formed steel frame-X-shaped supporting structure so as to solve the problems in the prior art.
The technical scheme adopted for realizing the purpose of the invention is that the novel assembled cold-formed steel frame-X-shaped supporting structure comprises a rectangular frame and an X-shaped support.
The rectangular frame comprises two frame columns and two frame beams. Node plates are arranged at the 4 inner corners of the rectangular frame.
The X-shaped support is arranged within a rectangular frame. The X-shaped support comprises 4 support diagonal rods and energy consumption sections.
The energy dissipation section comprises an energy dissipation plate and stiffening ribs annularly arranged around the outer periphery of the energy dissipation plate. The upper and lower surfaces of the energy consumption section are connected with end plates.
The energy consumption section divides the 4 support diagonal rods into an upper group of support rods and a lower group of support rods. Each group of supporting rods is in a V shape as a whole. One end of the supporting inclined rod is connected with the node plate, and the other end of the supporting inclined rod is intersected with the supporting inclined rods in the same group and connected with the corresponding end plate.
Further, the frame column is a cold-formed steel column. The frame beam is a cold-formed steel beam. The supporting diagonal rod is a cold-formed steel support.
Further, the frame column and the supporting diagonal rod adopt an I-shaped or H-shaped section. The frame beam adopts a T-shaped section.
Further, the frame posts and frame beams are connected by L-shaped connectors. The L-shaped connector includes two limbs. One limb of the L-shaped connecting piece is connected with the flange of the frame column through a high-strength bolt, and the other limb is connected with the web plate of the frame beam through a high-strength bolt.
Further, the frame column is manufactured by splicing double-limb cold-bent C-shaped steel. The notches of the double-limb cold-bent C-shaped steel are opposite. The webs of the double-limb cold-bent C-shaped steel are connected through self-tapping screws. The node plates are clamped between webs of the double-limb cold-bent C-shaped steel. The node plates are connected with the frame columns through high-strength bolts.
Furthermore, the frame beam is formed by splicing double-limb cold-bent L-shaped coiled angle steel. The web plates attached to the two-limb cold-bent L-shaped coiled corner steel are connected through self-tapping screws. The node plates are clamped between the two-limb cold-bent L-shaped coiled corner steel. The node plates are connected with the frame beams through high-strength bolts.
Furthermore, the supporting diagonal rod is formed by splicing double-limb cold-bent U-shaped steel. The notches of the double-limb cold-bent U-shaped steel are opposite. The webs of the double-limb cold-bent U-shaped steel are connected through self-tapping screws. The node plates are clamped between webs of the double-limb cold-bent U-shaped steel. The gusset plate is connected with the supporting diagonal rod through a high-strength bolt.
Further, the stiffening ribs are connected with the end plates through high-strength bolts.
Further, the energy dissipation plate is connected with the stiffening rib in a welding way.
Further, the opposite sides of the two frame columns are provided with anti-pulling pieces.
The technical effects of the invention are undoubted:
A. introducing a low yield point steel energy consumption section into the cold-formed steel structure by referring to the energy consumption principle of the shearing steel plate damper, and connecting the low yield point steel energy consumption section with a support to form a cold-formed steel frame-support structure;
B. all components are connected by self-tapping screws or high-strength bolts, and compared with structures such as welding, the construction is more convenient;
C. the earthquake-resistant performance of the cold-formed steel structure can be remarkably improved, prefabricated construction is adopted, the construction speed is high, and the influence on the environment is small.
Drawings
FIG. 1 is a schematic view of a novel fabricated cold-formed steel frame-X-shaped support structure;
FIG. 2 is a frame column;
fig. 3 is a schematic view of a frame beam structure;
FIG. 4 is a schematic view of a support diagonal;
FIG. 5 is a diagram of the connection relationship of L-shaped connectors;
FIG. 6 is a schematic diagram of a power consuming section structure;
FIG. 7 is a graph of energy consumption segment connections;
fig. 8 is a diagram of a connection relationship of the gusset.
In the figure: frame post 1, cold bending C-shaped steel 101, frame beam 2, cold bending L-shaped edge rolling angle steel 201, L-shaped connecting piece 3, gusset plate 4, supporting diagonal 5, cold bending U-shaped steel 501, energy dissipation section 6, energy dissipation plate 601, stiffening rib 602, anti-pulling piece 7, end plate 8, self-tapping screw 9 and high-strength bolt 10.
Detailed Description
The present invention is further described below with reference to examples, but it should not be construed that the scope of the above subject matter of the present invention is limited to the following examples. Various substitutions and alterations are made according to the ordinary skill and familiar means of the art without departing from the technical spirit of the invention, and all such substitutions and alterations are intended to be included in the scope of the invention.
Example 1:
in order to solve the problem that the hysteresis curve of a traditional cold-formed steel combined wall body is obvious in pinching under the action of earthquake load, the shearing bearing capacity and the energy consumption capacity of the wall body are difficult to meet the earthquake-resistant requirement of a multilayer structure in a high-intensity area, the embodiment provides a novel assembled cold-formed steel frame-X-shaped supporting structure, which comprises a rectangular frame and X-shaped supports.
The rectangular frame comprises two frame posts 1 and two frame beams 2. The node plates 4 are arranged at the 4 inner corners of the rectangular frame.
The X-shaped support is arranged within a rectangular frame. The X-shaped support comprises 4 support diagonal rods 5 and a power dissipation section 6.
Referring to fig. 6 and 7, the energy dissipating section 6 includes an energy dissipating plate 601, and a stiffening rib 602 annularly disposed around the outer periphery of the energy dissipating plate 601. The upper and lower surfaces of the energy dissipation section 6 are connected with end plates 8. The load-bearing capacity and the energy-consuming capacity of the novel fabricated cold-formed steel frame-X-shaped supporting structure are determined by the size and the yield strength of the energy-consuming plate 601.
The energy consumption section 6 divides the 4 support diagonal rods 5 into an upper group of support rods and a lower group of support rods. Each group of supporting rods is in a V shape as a whole. One end of the supporting diagonal rod 5 is connected with the node plate 4, and the other end of the supporting diagonal rod is intersected with the supporting diagonal rods 5 in the same group and connected with the corresponding end plate 8.
All the components in the embodiment can be recycled, dismantled and recovered, and construction procedures such as welding and the like are omitted on site, so that the method has the advantages of short construction period, environmental protection, comfort, good durability, sustainability and the like, and is beneficial to house industrialization and prefabrication assembly.
Example 2:
the main content of this embodiment is the same as embodiment 1, wherein, referring to fig. 1, the frame column 1 is a cold-formed steel column. The frame beam 2 is a cold-formed steel beam. The supporting diagonal rod 5 is a cold-formed steel support. The frame column 1 and the supporting diagonal rods 5 adopt an I-shaped or H-shaped cross section. The frame beam 2 adopts a T-shaped section.
Referring to fig. 5, the frame posts 1 and frame beams 2 are connected by L-shaped connectors 3. The L-shaped connector 3 comprises two limbs. One limb of the L-shaped connecting piece 3 is connected with the flange of the frame column 1 through a high-strength bolt, and the other limb is connected with the web plate of the frame beam 2 through a high-strength bolt.
Referring to fig. 2, the frame column 1 is formed by splicing double-limb cold-bent C-shaped steel 101. The notches of the double-limb cold-bent C-shaped steel 101 are opposite. The webs of the double-limb cold-formed C-shaped steel 101 are connected by self-tapping screws 9. Referring to fig. 8, the gusset plate 4 is sandwiched between webs of the double-limb cold-formed C-steel 101. The gusset plate 4 is connected with the frame column 1 through a high-strength bolt 10.
Referring to fig. 3, the frame beam 2 is formed by splicing double-limb cold-bent L-shaped coil corner steel 201. The web plates attached to the double-limb cold-bent L-shaped coiled corner steel 201 are connected through self-tapping screws 9. The gusset plate 4 is sandwiched between the two-limb cold-bent L-shaped coil corner steel 201. The gusset plate 4 is connected with the frame beam 2 through a high-strength bolt 10.
Referring to fig. 4, the supporting diagonal rod 5 is formed by splicing double-limb cold-bending U-shaped steel 501. The notches of the double-limb cold-formed U-shaped steel 501 are opposite. The webs of the double-limb cold-formed U-shaped steel 501 are connected by self-tapping screws 9. The gusset plate 4 is sandwiched between webs of the double-limb cold-formed U-shaped steel 501. The gusset plate 4 is connected with the supporting diagonal rod 5 through a high-strength bolt 10.
In this embodiment, the dissipative section 6 is a shear steel plate damper. Under the action of earthquake load, deformation is generated between structural layers, the supporting diagonal rod 5 drives the energy dissipation section 6 to horizontally displace, and earthquake energy is dissipated through shearing hysteresis deformation of the energy dissipation section 6. The dissipative sections 6 with lower yield strength enter plastic dissipative before the frame columns 1 and frame beams 2. The energy consuming plate 601 undergoes shear plastic deformation and the stiffener 602 undergoes bending deformation consuming energy from the input structure. The energy consumption section 6 can improve the energy consumption capacity of the structure, and meanwhile, can avoid the large plastic deformation of members such as beams, columns and the like, and can improve the restorability of the structure.
Example 3:
the main content of this embodiment is the same as that of embodiment 1, wherein the stiffener 602 is connected to the end plate 8 through a high strength bolt 10.
Example 4:
the main content of this embodiment is the same as that of embodiment 1, wherein the energy dissipation plate 601 is welded to the stiffener 602.
Example 5:
the main content of this embodiment is the same as embodiment 1, wherein the opposite sides of the two frame columns 1 are provided with pull-out resistant members 7. And a floor slab is paved above the frame beam 2. The supporting structure in this embodiment is connected to the upper and lower layers through the pull-out preventing member 7.
Claims (10)
1. Novel assembled cold-formed steel frame-X-shaped supporting structure, its characterized in that: comprises a rectangular frame and an X-shaped support;
the rectangular frame comprises two frame columns (1) and two frame beams (2); node plates (4) are arranged at the 4 inner corners of the rectangular frame;
the X-shaped support is arranged in a rectangular frame; the X-shaped support comprises 4 support diagonal rods (5) and an energy consumption section (6);
the energy consumption section (6) comprises an energy consumption plate (601) and stiffening ribs (602) which are annularly arranged around the outer periphery of the energy consumption plate (601); the upper surface and the lower surface of the energy consumption section (6) are connected with end plates (8);
the energy consumption section (6) divides the 4 support diagonal rods (5) into an upper group of support rods and a lower group of support rods; each group of support rods is in a V shape as a whole; one end of the supporting inclined rod (5) is connected with the node plate (4), and the other end of the supporting inclined rod is intersected with the supporting inclined rods (5) in the same group and is welded with the corresponding end plate (8).
2. The novel fabricated cold-formed steel frame-X-shaped supporting structure according to claim 1, wherein: the frame column (1) is a cold-bending steel column; the frame beam (2) is a cold-formed steel beam; the supporting inclined rod (5) is a cold-formed steel support.
3. The novel fabricated cold-formed steel frame-X-shaped supporting structure according to claim 2, wherein: the frame column (1) and the supporting diagonal rod (5) adopt I-shaped or H-shaped cross sections; the frame beam (2) adopts a T-shaped section.
4. A novel fabricated cold-formed steel frame-X-shaped support structure as claimed in claim 3, wherein: the frame column (1) and the frame beam (2) are connected through an L-shaped connecting piece (3); the L-shaped connecting piece (3) comprises two limbs; one limb of the L-shaped connecting piece (3) is connected with the flange of the frame column (1) through a high-strength bolt, and the other limb is connected with the web plate of the frame beam (2) through a high-strength bolt.
5. A novel fabricated cold-formed steel frame-X-shaped support structure as claimed in claim 3, wherein: the frame column (1) is manufactured by splicing double-limb cold-bent C-shaped steel (101); the notches of the double-limb cold-bent C-shaped steel (101) are opposite; the webs of the double-limb cold-bent C-shaped steel (101) are connected through self-tapping screws (9); the node plate (4) is clamped between webs of the double-limb cold-bent C-shaped steel (101); the gusset plate (4) is connected with the frame column (1) through a high-strength bolt (10).
6. A novel fabricated cold-formed steel frame-X-shaped support structure according to claim 3 or 5, characterized in that: the frame beam (2) is manufactured by splicing double-limb cold-bent L-shaped coiled angle steel (201); the web plates attached to the double-limb cold-bent L-shaped coiled angle steel (201) are connected through self-tapping screws (9); the node plate (4) is clamped between the two-limb cold-bent L-shaped corner rolling steel (201); the gusset plate (4) is connected with the frame beam (2) through a high-strength bolt (10).
7. A novel fabricated cold-formed steel frame-X-shaped support structure as claimed in claim 3, wherein: the supporting diagonal rod (5) is manufactured by splicing double-limb cold-bent U-shaped steel (501); the notches of the double-limb cold-bent U-shaped steel (501) are opposite; the webs of the double-limb cold-formed U-shaped steel (501) are connected through self-tapping screws (9); the node plates (4) are clamped between webs of the double-limb cold-bent U-shaped steel (501); the gusset plate (4) is connected with the supporting diagonal rod (5) through a high-strength bolt (10).
8. The novel fabricated cold-formed steel frame-X-shaped supporting structure according to claim 1, wherein: the stiffening rib (602) is connected with the end plate (8) through a high-strength bolt (10).
9. The novel fabricated cold-formed steel frame-X-shaped supporting structure according to claim 1, wherein: the energy dissipation plate (601) is welded with the stiffening rib (602).
10. The novel fabricated cold-formed steel frame-X-shaped supporting structure according to claim 1, wherein: the two frame columns (1) are provided with anti-pulling pieces (7) on one side opposite to each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310774094.7A CN116695875A (en) | 2023-06-27 | 2023-06-27 | Novel assembled cold-formed steel frame-X-shaped supporting structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310774094.7A CN116695875A (en) | 2023-06-27 | 2023-06-27 | Novel assembled cold-formed steel frame-X-shaped supporting structure |
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| Publication Number | Publication Date |
|---|---|
| CN116695875A true CN116695875A (en) | 2023-09-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310774094.7A Pending CN116695875A (en) | 2023-06-27 | 2023-06-27 | Novel assembled cold-formed steel frame-X-shaped supporting structure |
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| CN (1) | CN116695875A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112709344A (en) * | 2020-12-28 | 2021-04-27 | 重庆大学 | X-shaped connection double-limb buckling-restrained brace |
-
2023
- 2023-06-27 CN CN202310774094.7A patent/CN116695875A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112709344A (en) * | 2020-12-28 | 2021-04-27 | 重庆大学 | X-shaped connection double-limb buckling-restrained brace |
| CN112709344B (en) * | 2020-12-28 | 2024-03-01 | 重庆大学 | X-shaped connection double-limb buckling restrained brace |
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