CN110359559B - Assembly type energy consumption node connected with suspension steel column and installation method thereof - Google Patents
Assembly type energy consumption node connected with suspension steel column and installation method thereof Download PDFInfo
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- CN110359559B CN110359559B CN201910654759.4A CN201910654759A CN110359559B CN 110359559 B CN110359559 B CN 110359559B CN 201910654759 A CN201910654759 A CN 201910654759A CN 110359559 B CN110359559 B CN 110359559B
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- energy consumption
- web
- consumption node
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- steel column
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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
- E04H9/024—Structures with steel columns and beams
Abstract
The invention relates to the field of constructional engineering, in particular to an assembled energy consumption node for connecting a suspended steel column and an installation method thereof. The energy consumption node comprises end plates, energy consumption node webs and energy consumption node flanges, wherein the energy consumption node flanges are arranged opposite to each other, the energy consumption node webs are arranged opposite to each other, the end plates are arranged at the top ends of the energy consumption node flanges and the energy consumption node webs, and the energy consumption node webs are located between the energy consumption node flanges opposite to each other; the energy consumption node web and the energy consumption node flange are used for fixing the suspended steel column. When wind load or earthquake load occurs, the energy consumption nodes can consume energy generated by the wind load or earthquake load, the interlayer displacement difference between the filling sub-floor suspended on the suspension steel column and the main structure is reduced, the anti-seismic performance of the sub-floor can be improved, and the safety performance of the sub-floor is guaranteed.
Description
Technical Field
The invention relates to the field of constructional engineering, in particular to an assembled energy consumption node for connecting a suspended steel column and an installation method thereof.
Background
With the continuous development of structural engineering technology, buildings are developing towards large-span and high-rise buildings. Compared with the traditional steel frame, the suspended structure system is a structure system which can provide larger space use requirements, has unique building shape and excellent structural performance, effectively reduces the steel consumption of the building, and generates huge social and economic values.
In a suspended structure system, the load of a filling sub-floor is transmitted to a top horizontal member of a giant frame column through a suspended steel column and an energy consumption node and further transmitted to the frame column, and the stress of a key node is concerned. Under the effect of wind load or earthquake load, the greater interlayer displacement difference can occur between the filling sub-floor and the main structure, and the key node for suspending the steel column can fail, so that the earthquake resistant performance of the sub-floor is reduced, and the safety performance of the sub-floor is affected.
Disclosure of Invention
In order to solve the technical problems, the invention provides an assembled energy consumption node connected with a suspension steel column, which can improve the anti-seismic performance of sub-floors and ensure the safety performance of the sub-floors.
In order to achieve the purpose, the invention adopts the following technical scheme:
an assembled energy consumption node connected with a suspended steel column comprises end plates, energy consumption node webs and energy consumption node flanges, wherein the energy consumption node flanges are arranged opposite to each other, the energy consumption node webs are arranged opposite to each other, the end plates are arranged at the top ends of the energy consumption node flanges and the energy consumption node webs, and the energy consumption node webs are located between the energy consumption node flanges opposite to each other;
and the energy consumption node web plate and the energy consumption node flange are used for fixing the suspended steel column.
Further, the suspension steel column is an H-shaped steel column, the H-shaped steel column comprises a steel column web and steel column flanges located at two ends of the steel column web, a gap for inserting the steel column flanges is formed between the energy consumption node web and the energy consumption node flanges, and the steel column web is inserted between the energy consumption node webs which are arranged oppositely.
Furthermore, the energy consumption node web comprises a web arc-shaped section and a web straight-line section, the energy consumption node flange comprises a flange arc-shaped section and a flange straight-line section, and the end plates are positioned at the top end of the web arc-shaped section and the top end of the flange arc-shaped section;
the end face of the web plate arc section facing the flange arc section is attached to the flange arc section;
the gap between the energy consumption node web and the energy consumption node flange is a gap between the web straight-line section and the flange straight-line section; the web straight-line sections of the webs of the energy dissipation nodes opposite to each other are used for fixing the webs of the steel columns.
Preferably, the end plate, the web arc section, the web straight-line section, the flange arc section and the flange straight-line section are all made of SMA (shape memory alloy); the web arc-shaped section and the flange arc-shaped section are in welded connection with the end plates, and the web arc-shaped section and the flange arc-shaped section are in welded connection.
Preferably, the end face of the flange straight-line section facing the flange of the steel column is provided with an elastic component and/or the end face of the web straight-line section facing the web of the steel column is provided with an elastic component.
Preferably, the area of the end plate is 1.2-1.5 times of the area enclosed by the web arc-shaped section and the flange arc-shaped section.
Preferably, an arc-shaped groove is formed in the joint of the web arc-shaped section and the web straight-line section and faces the end face of the flange of the energy consumption node.
The second objective of the present invention is to provide an installation method, wherein the installation method of the fabricated energy consumption node comprises the following steps:
s1, welding the two energy consumption node webs on the end plate oppositely, wherein the two energy consumption node webs are parallel; fitting the flange arc section of the flange of the energy consumption node on the web arc section, and welding the flange of the energy consumption node on the end plate, thereby completing the prefabrication of the energy consumption node;
s2, fixing the elastic part on the flange straight-line section;
s3, bolt holes are formed in the corresponding positions of the web straight-line section, the flange straight-line section, the end plate, the horizontal member of the building frame and the H-shaped steel column;
s4, placing a steel column web plate of the H-shaped steel column between web plate straight-line sections of web plates of the two energy consumption nodes; placing a steel column flange of the H-shaped steel column between a web plate straight-line section and a flange straight-line section;
and S5, fixing the end plates to the horizontal members through high-strength bolts, and fixing the H-shaped steel columns to the prefabricated energy consumption nodes through the high-strength bolts.
The invention has the following beneficial effects:
(1) the suspension steel columns are installed on the giant frame through the energy consumption nodes, and the suspension steel columns are directly installed on the giant frame instead. When wind load or earthquake load occurs, the energy consumption nodes can consume the energy generated by the energy consumption nodes, the interlayer displacement difference between the filling sub-floor suspended on the suspended steel column and the main structure is reduced, the anti-seismic performance of the sub-floor can be improved, the safety performance of the sub-floor is guaranteed, namely, the damage to the sub-floor and the main structure caused by the interlayer displacement difference is reduced, the anti-seismic performance of the sub-floor is improved, and the anti-seismic performance of the whole structure is improved. And the stress response of the sub-floors to other environmental loads can be reduced, and the safety and the comfort of the structure are improved.
(2) The SMA shape memory alloy has the characteristics of superelasticity and damping, and has the advantages of high fatigue resistance, high corrosion resistance, high recoverability and stable performance. The energy consumption nodes adopt SMA shape memory alloy, and can effectively evacuate energy input to the sub-floors by earthquakes. After undergoing a large deformation, the stress can be relieved by reverse deformation of the martensite and can finally return to the original state. Meanwhile, the web arc-shaped section and the flange arc-shaped section are both in a bent shape, so that the effect of evacuating seismic energy of the energy consumption node can be further improved, and the energy consumption node has certain self-resetting capability.
(3) The area of the end plate is slightly larger than the area of the area enclosed by the web arc-shaped section and the flange arc-shaped section, so that the firmness of the connection of the energy consumption node and the horizontal component can be improved, and the force transmissibility is improved.
(4) The web straight-line sections arranged in parallel improve the connection rigidity with the suspended steel column, and the gaps between the web straight-line sections and the flange straight-line sections can be inserted into the steel column flanges of the suspended steel column, so that the energy dissipation node is reliably connected with the suspended steel column.
(5) The suspension steel column is connected with the upper horizontal component through the bolt, so that the assembly efficiency of installation is improved, and the nodes can be repaired and replaced according to the damage condition after the earthquake.
(6) The flange arc-shaped section can improve the energy consumption capability and the self-resetting capability of the energy consumption node, effectively increases the space formed between the suspended steel column and the bottom end plate, and facilitates construction and installation of the bolt.
Drawings
FIGS. 1 and 2 are schematic structural views of the present invention;
FIG. 3 is a schematic structural diagram of an energy dissipating node web according to the present invention;
FIG. 4 is a schematic structural view of a flange of an energy dissipating node of the present invention;
FIG. 5 is a structural schematic view of an H-shaped steel column of the present invention;
FIG. 6 is an assembly view of a web and flanges of an energy dissipating node of the present invention;
FIGS. 7 and 8 are installation diagrams of the energy dissipating node and horizontal member of the present invention;
fig. 9 is a top view of the energy dissipating node web, the energy dissipating node flanges and the H-shaped steel columns of the present invention.
The notations in the figures have the following meanings:
10-end plate 11-energy consumption node web 110-web arc section 111-web straight-line section
112-arc groove 12-energy consumption node flange 120-flange arc section 121-flange straight line section
13-elastic part 2-H section steel column 20-steel column web 21-steel column flange
3-horizontal member 4-storey 5-frame column
Detailed Description
The technical scheme of the invention is clearly and completely described below by combining the embodiment and the attached drawings of the specification. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
An assembled energy consumption node for connecting suspended steel columns is shown in fig. 1 and 2 and comprises an end plate 10, two energy consumption node webs 11 arranged in front and at back, and two energy consumption node flanges 12 arranged on left and right, wherein each energy consumption node web 11 comprises a web arc-shaped section 110 and a web straight-line section 111, as shown in fig. 3, and each energy consumption node flange 12 comprises a flange arc-shaped section 120 and a flange straight-line section 121, as shown in fig. 4. The end plate 10 is welded to the top of the web arc 110 and to the top of the flange arc 120, which is the flange. The energy consumption node flanges 12 are arranged opposite to each other, the energy consumption node webs 11 are arranged opposite to each other, and the energy consumption node webs 11 are located between the energy consumption node flanges 12 opposite to each other.
The flange arc-shaped section 120 and the web arc-shaped section 110 are both curved, and the end surface of the web arc-shaped section 110 facing the flange arc-shaped section 120 is attached to the flange arc-shaped section 120. The firmness of the whole energy consumption node can be improved. As shown in fig. 3 and 6, an arc-shaped groove 112 is formed in the end surface of the connection part of the web arc section 110 and the web straight section 111, which faces the flange 12 of the energy consumption node, so that a gap is formed between the web straight section 111 and the flange straight section 121, as shown in fig. 5, the suspension steel column is an H-shaped steel column 2, the H-shaped steel column 2 includes a steel column web 20 and steel column flanges 21 located at two ends of the steel column web 20, and the gap between the web straight section 111 and the flange straight section 121 is used for clamping the steel column flanges 21 of the H-shaped steel column 2.
The two parallel web straight-line sections 111 form an area which is matched with the shape of the steel column web 20 of the H-shaped steel column 2.
The end face of the flange straight section 121 facing the steel column flange 21 is provided with an elastic part 13 and/or the end face of the web straight section 111 facing the steel column web 20 is provided with an elastic part 13. In this embodiment, the elastic member 13 is a rubber pad, and a rubber pad is disposed on an end surface of the flange straight section 121 facing the steel column flange 21.
In this embodiment, the area of the end plate 10 is 1.2 times to 1.5 times of the area enclosed by the web arc-shaped section 110 and the flange arc-shaped section 120.
In this embodiment, the end plate 10, the web arc segment 110, the web straight segment 111, the flange arc segment 120, and the flange straight segment 121 are all SMA shape memory alloys.
Example 2
On the basis of the embodiment 1, as shown in fig. 8, the main structure of the whole floor is a giant frame, the giant frame comprises frame columns 5 and a horizontal member 3 fixed at the top ends of the frame columns 5, a floor 4 of a sub-floor is transversely arranged between the two frame columns 5 and suspended on the horizontal member 3 through a plurality of energy consumption nodes of the invention, and the horizontal member 3 bears the main gravity of the floor 4. The installation of the energy consumption node of the invention on the giant frame comprises the following steps:
s1, welding the two energy consumption node webs 11 on the end plate 10 in an opposite mode, wherein the two energy consumption node webs 11 are parallel; attaching the flange arc section 120 of the flange 12 of the energy consumption node to the web arc section 110, and welding the flange 12 of the energy consumption node to the end plate 10, thereby completing prefabrication of the energy consumption node;
s2, fixing the elastic part 13 on the flange straight-line segment 121;
s3, bolt holes are formed in the corresponding positions of the web straight-line section 111, the flange straight-line section 121, the end plate 10, the horizontal member 3 of the building frame and the H-shaped steel column 2;
s4, placing the steel column web plate 20 of the H-shaped steel column 2 between web plate straight line sections 111 of two energy consumption node web plates 11; placing a steel column flange 21 of the H-shaped steel column 2 between the web straight-line section 111 and the flange straight-line section 121, and at this time, as shown in fig. 9, fixing the H-shaped steel column 2 in an area surrounded by two energy consumption node webs 11 and two energy consumption node flanges 12;
s5, as shown in fig. 7, the end plate 10 is fixed to the horizontal member 3 by high-strength bolts, the steel column web 20 of the H-section steel column 2 is fixed to the two web straight sections 111 by high-strength bolts, and the steel column flange 21 of the H-section steel column 2 is fixed to the web straight sections 111 and the flange straight sections 121 by high-strength bolts. The bottom end of the H-shaped steel column 2 is connected with the floor 4 and is used for bearing the gravity of the floor 4.
When an earthquake occurs, the frame columns 5 and the horizontal members 3 of the giant frame vibrate, and the SMA consumes energy due to deformation of the SMA caused by the displacement difference of the layer frames. The energy consumption node of the SMA shape memory alloy can consume earthquake energy, so that the energy transmitted to the H-shaped steel column 2 is reduced, and the shaking of the floor 4 connected to the H-shaped steel column 2 can be reduced.
Claims (3)
1. The utility model provides a connect assembled power consumption node that hangs steel column which characterized in that: the energy consumption node comprises end plates (10), energy consumption node webs (11) and energy consumption node flanges (12), wherein the energy consumption node flanges (12) are arranged opposite to each other, the energy consumption node webs (11) are arranged opposite to each other, the end plates (10) are installed at the top ends of the energy consumption node flanges (12) and the energy consumption node webs (11), and the energy consumption node webs (11) are located between the energy consumption node flanges (12) opposite to each other;
the energy consumption node web (11) and the energy consumption node flanges (12) are used for fixedly mounting suspended steel columns;
the suspension steel column is an H-shaped steel column (2), the H-shaped steel column (2) comprises a steel column web (20) and steel column flanges (21) located at two ends of the steel column web (20), a gap for inserting the steel column flanges (21) is formed between the energy consumption node web (11) and the energy consumption node flanges (12), and the steel column web (20) is inserted between the energy consumption node webs (11) which are arranged oppositely;
the energy consumption node web (11) comprises a web arc-shaped section (110) and a web straight-line section (111), the energy consumption node flange (12) comprises a flange arc-shaped section (120) and a flange straight-line section (121), and the end plate (10) is located at the top end of the web arc-shaped section (110) and the top end of the flange arc-shaped section (120);
the end face, facing the flange arc-shaped section (120), of the web arc-shaped section (110) is attached to the flange arc-shaped section (120);
a gap arranged between the energy consumption node web (11) and the energy consumption node flange (12) is a gap arranged between the web straight line section (111) and the flange straight line section (121); the web straight-line sections (111) of the energy consumption node webs (11) opposite to each other are used for fixing the steel column webs (20);
the end plate (10), the web arc-shaped section (110), the web straight-line section (111), the flange arc-shaped section (120) and the flange straight-line section (121) are all made of SMA (shape memory alloy); the web arc-shaped section (110) and the flange arc-shaped section (120) are in welded connection with the end plate (10), and the web arc-shaped section (110) and the flange arc-shaped section (120) are in welded connection;
the end face, facing the steel column flange (21), of the flange straight section (121) is provided with an elastic part (13) and/or the end face, facing the steel column web (20), of the web straight section (111) is provided with an elastic part (13);
an arc-shaped groove (112) is formed in the end face, facing the energy consumption node flange (12), of the joint of the web arc-shaped section (110) and the web straight-line section (111).
2. The fabricated energy dissipating node for connecting suspended steel columns according to claim 1, wherein: the area of the end plate (10) is 1.2-1.5 times of the area enclosed by the web arc section (110) and the flange arc section (120).
3. The method for installing the fabricated energy dissipation node for connecting suspension steel columns according to any one of claims 1 to 2, comprising the following steps:
s1, welding the two energy consumption node webs (11) on the end plate (10) oppositely, wherein the two energy consumption node webs (11) are parallel; attaching the flange arc section (120) of the energy consumption node flange (12) to the web arc section (110), and welding the energy consumption node flange (12) on the end plate (10), thereby completing prefabrication of the energy consumption node;
s2, fixing the elastic part (13) on the flange straight line section (121);
s3, bolt holes are formed in the corresponding positions of the web straight-line section (111), the flange straight-line section (121), the end plate (10), the horizontal component (3) of the building frame and the H-shaped steel column (2);
s4, placing a steel column web plate (20) of the H-shaped steel column (2) between web plate straight line sections (111) of web plates (11) of two energy consumption nodes; placing a steel column flange (21) of the H-shaped steel column (2) between a web straight section (111) and a flange straight section (121);
s5, fixing the end plates (10) to the horizontal members (3) through high-strength bolts, fixing the steel column web (20) of the H-shaped steel column (2) to the two web straight line sections (111) through the high-strength bolts, and fixing the steel column flange (21) of the H-shaped steel column (2) to the web straight line sections (111) and the flange straight line sections (121) through the high-strength bolts.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910654759.4A CN110359559B (en) | 2019-07-19 | 2019-07-19 | Assembly type energy consumption node connected with suspension steel column and installation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910654759.4A CN110359559B (en) | 2019-07-19 | 2019-07-19 | Assembly type energy consumption node connected with suspension steel column and installation method thereof |
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| CN110359559A CN110359559A (en) | 2019-10-22 |
| CN110359559B true CN110359559B (en) | 2022-05-17 |
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| CN112095788B (en) * | 2020-09-07 | 2022-02-22 | 西安建筑科技大学 | System for improving continuous collapse resistance of rigid connection structure based on bent armpit |
| CN112345063B (en) * | 2020-10-14 | 2022-08-02 | 合肥工业大学 | Testing method for floor vibration comfort level |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2000345612A (en) * | 1999-06-04 | 2000-12-12 | Fujita Corp | Column-beam joining structure |
| JP5635734B2 (en) * | 2009-01-07 | 2014-12-03 | 株式会社住金システム建築 | Beam-column joints and reinforcement hardware for beam-column joints |
| CN102444211B (en) * | 2011-11-15 | 2014-04-30 | 福州大学 | Reamed steel structure beam-column joint connected via end plate and construction method for same |
| CN207048045U (en) * | 2017-06-14 | 2018-02-27 | 重庆大学 | A kind of endplate connections node |
| CN208701887U (en) * | 2018-07-11 | 2019-04-05 | 远象建设集团有限公司 | A kind of steel construction davit node with arc dissipative cell |
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