CN111188425B - Disc spring self-resetting node connecting device - Google Patents
Disc spring self-resetting node connecting device Download PDFInfo
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- CN111188425B CN111188425B CN202010025424.9A CN202010025424A CN111188425B CN 111188425 B CN111188425 B CN 111188425B CN 202010025424 A CN202010025424 A CN 202010025424A CN 111188425 B CN111188425 B CN 111188425B
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- disc spring
- resetting
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- cantilever
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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
- 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
- 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
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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
- E04B2001/2415—Brackets, gussets, joining plates
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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
- E04B2001/2418—Details of bolting
-
- 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
-
- 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
- E04B2001/2457—Beam to beam connections
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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 disc spring self-resetting node connecting device, which belongs to the technical field of building structure engineering and comprises a steel column, a cantilever short beam, a middle beam, a disc spring resetting device, a U-shaped damper, a connecting steel plate, a column stiffening rib, an anchoring plate, a beam stiffening rib and a high-strength bolt. The steel column is welded with the cantilever short beam, the cantilever short beam is connected with the middle beam through the connecting steel plate bolt, and the disc spring resetting device and the U-shaped damper are arranged between the upper flange and the lower flange of the steel beam. Under the action of earthquake, the node bears bending moment and shearing force through the U-shaped damper and the connecting steel plate, energy input from the outside is consumed, and after the earthquake action disappears, the self-resetting of the node is realized through the disc spring resetting device, so that the structure after the earthquake is not damaged or slightly damaged. The connecting method of the disc spring self-resetting node is simple and convenient, has a simple structure, is mostly connected by bolts, can realize assembly, and can be replaced in time if the component is damaged after an earthquake. The invention can be widely applied to the technical field of shock absorption and energy dissipation of building structures.
Description
Technical Field
The invention relates to the technical field of building structure earthquake resistance, in particular to a disc spring self-resetting node connecting device which can be used for a structure to have self-resetting capability after an earthquake.
Background
Earthquakes are sudden natural disasters, and often bring huge disasters to human beings, so that property loss, casualties and house collapse are caused. The traditional anti-seismic design concept takes life protection as a primary target, and allows the main lateral force resisting component of the structure to generate plastic deformation so as to dissipate seismic energy input into the structure, but the structural component is damaged and deformed, and finally the structure is damaged difficultly to be repaired, so that the use function is lost.
The self-reset node has the characteristic that the structure can be deformed and restored after the earthquake, so that the restoration time and restoration energy of the building after the earthquake are reduced, and the green development of the building is realized. The inherent technical characteristics of the prestressed device constitute some defects in the application of the self-resetting structure, and the shape memory alloy device has the defects of low bearing capacity, high manufacturing cost, difficult manufacturing, large influence of temperature and the like, and is not suitable for practical wide application. Therefore, the research on a novel reliable self-resetting device to replace the use of the self-resetting device and the self-resetting device avoids the defects of the self-resetting device in practical application and has great research value.
Disclosure of Invention
The invention provides a disc spring self-resetting node connecting device.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows:
the utility model provides a dish spring is from restoring to throne nodal connection device, including vertical steel column, horizontally cantilever short beam and centre sill, cantilever short beam one end is connected with the steel column side, the cantilever short beam other end is connected with the centre sill, the roof beam top flange and the roof beam bottom flange inside and outside of cantilever short beam and centre sill are connected through U-shaped attenuator and steel sheet connection respectively, all be provided with the vertical anchor board of two relative settings in cantilever short beam and the centre sill, be fixed with dish spring resetting means on two anchor boards of cantilever short beam and centre sill.
The technical scheme of the invention is further improved as follows: the steel column is welded with the cantilever short beam, and the connecting steel plate is respectively connected to the outer side of the beam upper flange and the outer side of the beam lower flange at the splicing position of the cantilever short beam and the middle beam through connecting high-strength bolts.
The technical scheme of the invention is further improved as follows: the cantilever short beam and the middle beam are H-shaped steel beams, two pairs of U-shaped dampers are symmetrically arranged on two sides of a steel beam web plate, the U-shaped dampers on each side are fixed on the inner sides of the upper flanges and the lower flanges of the beams through connecting high-strength bolts, bolt holes are formed in the corresponding positions of the U-shaped dampers, the steel beam flanges and the connecting steel plates, and the U-shaped dampers, the steel beam flanges and the connecting steel plates are connected together through the connecting high-strength bolts in sequence.
The technical scheme of the invention is further improved as follows: the disc spring resetting devices are fixed on the anchoring plate through pre-tightening high-strength bolts and are symmetrically arranged on two sides of a steel beam web, and a pair of disc spring resetting devices is symmetrically arranged on each side of the steel beam web up and down.
The technical scheme of the invention is further improved as follows: the anchor plate of the cantilever short beam and the anchor plate of the middle beam are both away from the beam end by the same distance.
The technical scheme of the invention is further improved as follows: the disc spring resetting device comprises disc spring pieces, a disc spring base plate and pre-tightening high-strength bolts, wherein the disc spring pieces are folded pairwise and then pairwise abutted, and the pre-tightening high-strength bolts sequentially penetrate through the anchoring plate of the cantilever short beam, the disc spring base plate, the disc spring pieces, the disc spring base plate and the anchoring plate of the middle beam and then are screwed down.
The technical scheme of the invention is further improved as follows: all establish a set of roof beam stiffening rib on every anchor board, 3 are no less than to roof beam stiffening rib number.
The technical scheme of the invention is further improved as follows: the steel column is H shaped steel post, and a set of post stiffening rib is all established to the steel column web both sides of steel column, and 2 are no less than to post stiffening rib number.
Due to the adoption of the technical scheme, the invention has the technical progress that:
the invention utilizes the concept that the bending moment at the reverse bending point of the frame beam is zero, the plastic hinge is moved outwards, and the cantilever short beam and the middle beam are arranged, so that the splicing node position is close to the reverse bending point of the beam under the combined load action. Bending moment at the splicing joint under the action of earthquake is reduced, damage is concentrated in the splicing joint area, and brittle damage to the steel frame joint is avoided.
The disc spring resetting device is used as a self-resetting element, can effectively avoid some defects of a prestressing device and a shape memory alloy device in a self-resetting structure, and has the advantages of simple structure, convenience in installation, low manufacturing cost, high deformation capability and strong self-resetting performance.
Under the normal use stage and the action of small vibration, the node is stressed the same as the common rigid connection node, the beam column does not rotate, and the node is not damaged; under the action of medium and large earthquakes, the connecting node of the cantilever short beam and the middle beam is allowed to rotate, and the U-shaped damper and the connecting steel plate consume energy and bear bending moment and shearing force. After the earthquake force disappears, the disc spring resetting device starts to play a role, so that the node returns to the original position, the residual deformation is reduced, and the quick recovery of the structure after the earthquake is realized.
Most of the connection methods adopt bolt connection, are suitable for field assembly, are convenient and quick to construct, can be replaced in time if parts are damaged after an earthquake, reduce the repair time after the earthquake, and meet the future development trend of the building industry.
Drawings
FIG. 1 is a schematic three-dimensional structure of a disc spring self-resetting node connecting device according to the invention;
FIG. 2 is a schematic structural diagram of a splice node of the present invention;
FIG. 3 is a schematic structural diagram of a disc spring return device according to the present invention;
the steel column is connected with the cantilever short beam anchor plate, the cantilever short beam anchor plate is connected with the cantilever short beam anchor plate, the cantilever short.
Detailed Description
The present invention will be described in further detail with reference to the following examples:
the invention discloses a disc spring self-resetting node connecting device which comprises a steel column 1, a cantilever short beam 2, a middle beam 3, a disc spring resetting device 4, a U-shaped damper 5, a connecting steel plate 6, a column stiffening rib 7, an anchoring plate 8, a beam stiffening rib 9, a connecting high-strength bolt 1001 and a pre-tightening high-strength bolt 1002.
Referring to fig. 1 and 2, a steel column 1 is welded to a cantilever short beam 2, the cantilever short beam 2 is spliced with a middle beam 3 through a connecting steel plate 6, and the connecting steel plate 6 is connected to the outer side of an upper flange and the outer side of a lower flange of the beam through a high-strength connecting bolt 1001.
As shown in FIG. 2, a disc spring resetting device 4 is arranged at the joint of the cantilever short beam 2 and the cantilever middle beam 3 and is used for bearing bending moment and providing self-restoring force under the action of earthquake. The disc spring resetting device 4 is fixed on the anchoring plate through a pre-tightening high-strength bolt 1002. Dish spring resetting means 4 is at girder steel web bilateral symmetry arrangement, and a pair of dish spring resetting means 4 of equal upper and lower symmetrical arrangement in web each side.
A pair of anchoring plates 8 are symmetrically arranged on two sides of webs of the cantilever short beam 2 and the middle beam 3, and the disc spring resetting device 4 is anchored between the cantilever short beam anchoring plate 801 and the middle beam anchoring plate 802. Every is every to anchor plate all with the roof beam end apart from the same distance, the installation of dish spring resetting means 4 of being convenient for provides self-restoring force better.
As shown in fig. 3, the disc spring returning device 4 is composed of a disc spring 401, a disc spring backing plate 402 and a pre-tightening high-strength bolt 1002. The disk springs 401 are overlapped in pairs and then are closed in pairs, and the pre-tightening high-strength bolts 1002 sequentially penetrate through the cantilever short beam anchoring plate 801, the disk spring base plate 402, the disk springs 401, the disk spring base plate 402 and the middle beam anchoring plate 802 and then are tightened.
As shown in fig. 2, the U-shaped damper 5 is fixed to the flange by a connecting high-strength bolt 1001. Two pairs of U-shaped dampers 5 are symmetrically arranged on two sides of a beam web plate, the upper U-shaped damper 5 on each side is connected to the inner side of the upper flange of the beam, and the lower U-shaped damper on each side is connected to the inner side of the lower flange of the beam. The U-shaped damper 5, the steel beam flange and the connecting steel plate 6 are provided with bolt holes at corresponding positions, and the three are connected together in sequence through connecting high-strength bolts 1001.
As shown in fig. 1 and 2, a group of column stiffening ribs 7 are arranged on both sides of the steel column web, and the number of the column stiffening ribs 7 is not less than 2. A group of beam stiffening ribs 9 are arranged on each anchoring plate 8, and the number of the beam stiffening ribs 9 is not less than 3.
Under the normal use stage and the action of small vibration, the structure is stressed the same as the common rigid connection node, the rotation does not occur between the beams and the columns, and the node is not damaged; under the action of medium and large earthquakes, the connecting node of the cantilever short beam 2 and the middle beam 3 is allowed to rotate, and the U-shaped damper 5 and the connecting steel plate 6 consume energy and bear bending moment and shearing force. After the earthquake force disappears, the disc spring resetting device 4 starts to play a role, so that the node returns to the original position, the residual deformation is reduced, and the self-resetting of the structure is realized.
Most of the node connection methods are connected by bolts, and the parts can be replaced in time if damaged after the earthquake.
Claims (6)
1. The utility model provides a dish spring is from restoring to throne nodal connection device, includes vertical steel column (1), horizontally cantilever short beam (2) and centre sill (3), and cantilever short beam (2) one end is connected with steel column (1) side, and the cantilever short beam (2) other end is connected its characterized in that with centre sill (3): the inner sides and the outer sides of the beam upper flange and the beam lower flange of the cantilever short beam (2) and the middle beam (3) are respectively connected with a connecting steel plate (6) through a U-shaped damper (5), two vertical anchoring plates (8) which are oppositely arranged are arranged in the cantilever short beam (2) and the middle beam (3), and a disc spring resetting device (4) is fixed on the two anchoring plates (8) of the cantilever short beam (2) and the middle beam (3); the steel column (1) is welded with the cantilever short beam (2), and the connecting steel plate (6) is respectively connected to the outer side of the beam upper flange and the outer side of the beam lower flange at the splicing position of the cantilever short beam (2) and the middle beam (3) through connecting high-strength bolts (1001); cantilever stub beam (2) and centre sill (3) are H shaped steel roof beam, girder steel web bilateral symmetry sets up two pairs of U-shaped attenuator (5), and U-shaped attenuator (5) of every side are fixed at roof beam top flange inboard and roof beam bottom flange inboard through connecting high strength bolt (1001), and bolt hole is seted up to U-shaped attenuator (5), girder steel flange and connecting plate (6) corresponding position, links together U-shaped attenuator (5), girder steel flange and connecting plate (6) according to order through connecting high strength bolt (1001).
2. The disc spring self-resetting nodal connection device of claim 1, wherein: dish spring resetting means (4) are fixed on anchor plate (8) through pretension high strength bolt (1002), dish spring resetting means (4) are at girder steel web bilateral symmetry arrangement, a pair of dish spring resetting means (4) of girder steel web upper and lower symmetrical arrangement in every side.
3. The disc spring self-resetting nodal connection device of claim 2, wherein: the anchor plate (8) of the cantilever short beam (2) and the anchor plate (8) of the middle beam (3) are both away from the beam end by the same distance.
4. The disc spring self-resetting nodal connection device according to any one of claims 1 to 3, wherein: the disc spring resetting device comprises disc spring plates (401), disc spring base plates (402) and pre-tightening high-strength bolts (1002), the disc spring plates (401) are folded pairwise and then are folded pairwise, and the pre-tightening high-strength bolts (1002) sequentially penetrate through the anchoring plates (8) of the cantilever short beams (2), the disc spring base plates (402), the disc spring plates (401), the disc spring base plates (402) and the anchoring plates (8) of the middle beams (3) and then are screwed down.
5. The disc spring self-resetting nodal connection device of claim 4, wherein: a group of beam stiffening ribs (9) are arranged on each anchoring plate (8), and the number of the beam stiffening ribs (9) is not less than 3.
6. The disc spring self-resetting nodal connection device of claim 4, wherein: steel column (1) is H shaped steel post, and a set of post stiffening rib (7) are all established to the steel column web both sides of steel column (1), and post stiffening rib (7) number is no less than 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010025424.9A CN111188425B (en) | 2020-01-10 | 2020-01-10 | Disc spring self-resetting node connecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010025424.9A CN111188425B (en) | 2020-01-10 | 2020-01-10 | Disc spring self-resetting node connecting device |
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| CN111188425A CN111188425A (en) | 2020-05-22 |
| CN111188425B true CN111188425B (en) | 2021-06-08 |
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| CN202010025424.9A Active CN111188425B (en) | 2020-01-10 | 2020-01-10 | Disc spring self-resetting node connecting device |
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| CN112459276A (en) * | 2020-10-29 | 2021-03-09 | 共享钢构有限责任公司 | Section steel damper and manufacturing method and using method thereof |
| CN112252486B (en) * | 2020-10-30 | 2022-03-11 | 郑州航空工业管理学院 | Steel structure connecting node |
| CN112502035B (en) * | 2020-12-08 | 2022-03-15 | 防灾科技学院 | Assembled bridge double-column pier containing triple energy dissipation system |
| CN112502310A (en) * | 2020-12-14 | 2021-03-16 | 扬州大学 | Displacement amplification type self-resetting damper based on pre-pressed disc spring |
| CN112376696B (en) * | 2021-01-12 | 2021-05-18 | 湖南大学 | Building node with multiple energy consumption and self-resetting characteristics and assembling method thereof |
| CN112982197B (en) * | 2021-03-17 | 2023-05-23 | 黄河水利职业技术学院 | I-steel stress system reinforcing apparatus |
| CN113235754A (en) * | 2021-04-03 | 2021-08-10 | 河北工业大学 | Energy-consuming support structure of assembled beam-column frame and construction method |
| CN113202187B (en) * | 2021-05-06 | 2022-04-29 | 安徽省宝路钢结构有限公司 | Steel structure high-strength connecting piece and assembling process thereof |
| CN113502917B (en) * | 2021-06-16 | 2022-05-17 | 燕山大学 | Spring type self-resetting beam column node |
| CN113550447B (en) * | 2021-07-28 | 2022-07-19 | 安徽省建筑科学研究设计院 | Double-hinged functional-restorable steel frame beam column joint |
| CN114809444A (en) * | 2022-01-19 | 2022-07-29 | 合肥工业大学 | Column base joint containing disc spring bolt assembly |
| CN114508176B (en) * | 2022-01-19 | 2023-08-29 | 合肥工业大学 | Beam column joint with disc spring bolt connecting assembly |
| CN115949149B (en) * | 2022-12-12 | 2023-07-25 | 哈尔滨工业大学 | Disc spring-SMA rod combined bending-resistant energy-consumption self-resetting steel beam column node with pin joint center support |
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| CN207484678U (en) * | 2018-03-30 | 2018-06-12 | 胡水 | A kind of steel frame beam column joint of the U-shaped damper of band |
| CN110306662A (en) * | 2019-06-17 | 2019-10-08 | 同济大学 | A kind of low damage web friction energy-dissipating bean column node of Self-resetting |
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2020
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|---|---|---|---|---|
| JP3842484B2 (en) * | 1999-05-19 | 2006-11-08 | 積水ハウス株式会社 | Column and beam joint structure and building having the same |
| CN106812365A (en) * | 2017-02-17 | 2017-06-09 | 清华大学 | Framework frcition damper and the frame joint with it |
| CN207484678U (en) * | 2018-03-30 | 2018-06-12 | 胡水 | A kind of steel frame beam column joint of the U-shaped damper of band |
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| CN111188425A (en) | 2020-05-22 |
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