CN109797857B - Large-clearance steel frame center supporting system with flange and capable of recovering function - Google Patents
Large-clearance steel frame center supporting system with flange and capable of recovering function Download PDFInfo
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- CN109797857B CN109797857B CN201910071697.4A CN201910071697A CN109797857B CN 109797857 B CN109797857 B CN 109797857B CN 201910071697 A CN201910071697 A CN 201910071697A CN 109797857 B CN109797857 B CN 109797857B
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Abstract
The invention relates to a large-clearance center support system with a recoverable functional steel frame and a flange plate, and belongs to the field of structural engineering. All components of the system are processed by factories and are connected and installed by high-strength bolts, so that the high requirements on the processing precision and quality of the components and the quick assembly are easy to realize; the inclined strut system is an assembled buckling-restrained Y-shaped strut, energy dissipation elements are arranged at the positions of the inclined struts, the stability of the inclined strut system and the overall lateral force resistance of the structure are improved, and meanwhile, door openings can be formed at the positions where the struts are arranged, so that the design form is more flexible, and different structural forms can be met; the upper flange connecting plate is arranged to be an inner cover plate type, when the inner cover plate deforms, the inner cover plate can be tightly pressed against the inverted L-shaped web shearing plate in a contact mode, the inverted L-shaped web shearing plate can control buckling deformation of the upper flange cover plate, and the purpose of buckling prevention is achieved.
Description
Technical Field
The invention relates to a large-clearance center support system with a recoverable functional steel frame and a flange plate, and belongs to the field of structural engineering.
Background
With the acceleration of urbanization process, the development and technical level of the building field are continuously promoted, and in addition, the influence of the problems of environmental pollution and resource waste, the defect of poor environmental protection property existing in the traditional building system is gradually exposed, and the green assembly type steel structure begins to become the main type of the building system. Compared with the traditional system, the system has remarkable advantages in the aspects of construction quality, construction efficiency and the like. The building block is a representative construction method, greatly accelerates the construction speed and saves the engineering fund. The method is applied to the design and development of various building systems, and is the main trend of future development in the building field.
The traditional frame support system adopts a linear type inclined strut, the space reserved at the opening position of the center part of the structure is smaller, however, in the practical structural engineering problem, a plurality of structures need to be windowed and door-opened, a larger opening is needed, the traditional frame support system cannot meet the requirement, and the inclined strut of the traditional frame support system has no energy consumption section, so that buckling damage is easy to occur at a certain part of the structure. The unreasonable design of traditional frame support body tie beam column node will lead to the emergence of "strong component weak point" condition, makes the structure take place serious earthquake damage under the earthquake load effect, threatens people's life and property safety. The existing research shows that the aim of outward movement of the plastic hinge can be achieved by performing targeted reinforcement on beam-column joints or weakening a specific area on a beam, so that the beam-column joints are protected, and the design requirements of 'strong joint and weak member' are met; meanwhile, the floor slabs and the beam sections are pre-assembled and then transported to a construction site for assembly, so that the time for on-site concrete pouring can be greatly saved; in addition, a recoverable functional structure capable of recovering the use function without or with slight repair after an earthquake is a research hotspot in the field of international earthquake engineering in recent years, not only can protect the life and property safety of people in the earthquake, but also can recover the use function as soon as possible after the earthquake, so that the idea of the recoverable functional structure needs to be implemented in the research and development design work of a new structure so as to realize the transformation of the building from singly pursuing collapse resistance to considering the repairable capability after the earthquake.
In order to overcome the problems, the invention provides a large-clearance center support system with a flange plate and a recoverable functional steel frame. The upper flange connecting plate is arranged into the inner cover plate type, when the inner cover plate deforms, the inner cover plate can be contacted and tightly pressed with the inverted L-shaped web shearing plate, and the inverted L-shaped web shearing plate can control the buckling deformation of the upper flange cover plate, so that the buckling prevention purpose is realized; through set up energy consumption component in bracing department, energy consumption component absorbed energy when the bracing atress prevents that the bracing from taking place the unstability and destroying, and the whole anti side force of structure improves, when improving the whole anti side force of structure, overall stability, can set up the door opening in the position that sets up the support, makes the design form more nimble, can satisfy different structural style.
Disclosure of Invention
The invention provides a large-clearance center support system with a steel frame with a flange and a recoverable function, and aims to solve the problem of a frame system; meanwhile, a novel supporting system is introduced, and the problem of opening door openings in the frame is solved.
In order to achieve the purpose, the invention adopts the following technical means:
the utility model provides a big clearance just takes restorable function steel frame center support system of ring flange which characterized in that: the system comprises two welded and combined square steel pipe columns, two square steel pipe upper columns with cantilever beam sections, an I-beam section with an inclined support rod, two Y-shaped inclined struts, two inclined strut energy consumption sections, two groups of first connecting devices, two groups of second connecting devices, two groups of third connecting devices, two groups of fourth connecting devices, two groups of fifth connecting devices and two groups of sixth connecting devices; all components of the system are processed by factories and are connected and installed by high-strength bolts, so that the high requirements on the processing precision and quality of the components and the quick assembly are easy to realize, and the concept of an assembled green steel structure is met; compared with a steel truss support and steel truss barrel structure system, the system has the advantages that the energy dissipation elements are arranged at the inclined strut positions, when the inclined strut is stressed, the energy dissipation elements absorb energy through self internal buckling deformation, the bearing capacity of the inclined strut is improved, the inclined strut can be prevented from being unstably damaged, the inclined strut system is more stable, meanwhile, the energy dissipation elements can be quickly installed through the connecting devices, the assembled type buckling-restrained support is realized, the integral lateral resistance of the structure is improved, the integral lateral resistance and the integral stability of the structure are improved, meanwhile, the door openings can be formed at the positions where the supports are arranged, the design form is more flexible, and different structure forms can be met; the beam-column joint connection of the system has the function of restorable after earthquake, the beam end is reinforced by thickening the flange thickness of the cantilever beam section, the plastic hinge moves outwards and the rotation capacity is improved by the connection mode of the cover plate and the gap arrangement between the cantilever beam section and the I-shaped beam section, so that the plastic damage is generated in the splicing area, the rest part of the beam-column joint basically keeps elasticity, and the use function of the main structure can be restored only by replacing the connecting device after the earthquake; the design of the inverted L-shaped web shear plate can control the buckling amplitude of the upper flange cover plate; the upper flange connecting plate is arranged into an inner cover plate type, when the inner cover plate deforms, the inner cover plate can be contacted and tightly propped against the inverted L-shaped web shearing plate, and the inverted L-shaped web shearing plate can control the buckling deformation of the upper flange cover plate, so that the buckling prevention purpose is realized; the beam column connecting node adopts the apron to connect, and the upper flange apron adopts interior apron formula design, is convenient for with being connected of floor, and the lower flange apron adopts outer apron formula design.
The utility model provides a big clearance just takes restorable function steel frame center support system of ring flange which characterized in that: y type bracing passes through connecting device with each main part component and is connected, constitutes a novel support system, should support when guaranteeing the bearing capacity, can set up the entrance to a cave again simultaneously in the position that sets up the support, and the design is nimble, can satisfy the needs of different structural style, and should support and form with bolted connection by each part, accords with the advantage of assembled steel construction.
All components of the device are processed in factories, are connected and installed by high-strength bolts on site, are easy to realize high requirements on component processing precision and quality and quick assembly, and accord with the construction characteristics of assembled steel structures.
The advantages of the patent are mainly shown in the following aspects:
(1) the bracing is assembled buckling restrained Y font support. Bracing position department is equipped with energy dissipation component, energy dissipation component warp the absorbed energy through self inside bucking during the bracing atress, promote the bracing bearing capacity, can prevent that the bracing from taking place the unstability destruction, promote bracing system stability, energy dissipation component passes through connecting device and can realize quick installation simultaneously, realize assembled buckling restrained brace, the whole anti side force of structure improves, improve the whole anti side force of structure, when overall stability, can set up the position of support and set up the door opening, make the design more nimble, can satisfy different structural style.
(2) The upper flange connecting plate is arranged to be an inner cover plate type, when the inner cover plate deforms, the inner cover plate can be tightly pressed against the inverted L-shaped web shearing plate in a contact mode, the inverted L-shaped web shearing plate can control buckling deformation of the upper flange cover plate, and the purpose of buckling prevention is achieved.
(3) The cantilever beam section and the I-beam section are connected through the cover plate, the upper flange cover plate is designed in an inner cover plate mode, connection with a floor slab is facilitated, the lower flange cover plate is designed in an outer cover plate mode, the purpose is to install the cantilever beam section lower flange cover plate firstly, and the lower flange cover plate can serve as a support of the I-beam section in the installation process, so that construction speed is increased, construction quality is improved, and the assembled steel structure is suitable for development.
(4) And segmenting the ultra-long and ultra-heavy component. The invention is based on the design concept of sectional assembly of the component, the whole structure is divided into a plurality of sections which are connected into a whole through bolts, the frame support opening system with the flange plate can effectively overcome the inconvenience of the traditional long and heavy component in the processes of processing, transporting and installing, the transporting and hoisting cost is reduced, and the manufacturing cost is reduced.
Drawings
FIG. 1 is a three-dimensional view of a large-clearance center support system with a flange and a recoverable functional steel frame;
FIG. 2 is a disassembled view of a large-clearance center support system of a recoverable functional steel frame with a flange;
FIG. 3 is a front view of a large clear and recoverable functional steel frame center support system with flanges;
FIG. 4 is a side view of a large clear and recoverable functional steel frame center support system with flanges;
FIG. 5 is a top view of a large clear and recoverable functional steel frame center support system with flanges;
FIG. 6 is a three-dimensional diagram of a diagonal brace of a large-clearance recoverable functional steel frame central support system with flanges;
FIG. 7 is a sectional view of a brace of a central support system of a recoverable functional steel frame with a large clear space and a flange.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to fig. 1 to 7.
As shown in fig. 1 to 7, a large-clearance steel frame center support system includes the following components:
1-welding a combined square steel pipe column;
2-upper column of square steel pipe with cantilever beam section;
3, an I-beam section with an inclined support rod;
4-Y-shaped diagonal bracing;
5-bracing energy consumption section;
6-first connecting means;
7-second connecting means;
8-third connecting means;
9-fourth connecting means;
10-fifth connecting means;
11-sixth connecting means;
12-upper column of square steel tube;
13-square steel tube central column;
14-lower column of square steel tube;
15-cantilever beam section;
16-flange plate;
17-upper flange inner cover plate;
18-lower flange outer cover plate;
19-inverted L-shaped web shear plate;
20-flange backing plate on the I-beam section;
21-web plate backing plate of I-shaped beam section.
As shown in fig. 1-7, the recoverable functional steel frame central support system with large clearance and flange plates comprises two welded and combined square steel pipe columns (1), two square steel pipe upper columns (2) with cantilever beam sections, an i-beam section (3) with diagonal support rods, two Y-shaped diagonal braces (4), two diagonal brace energy consumption sections (5), two groups of first connecting devices (6), two groups of second connecting devices (7), two groups of third connecting devices (8), two groups of fourth connecting devices (9), two groups of fifth connecting devices (10) and two groups of sixth connecting devices (11); the welded and combined square steel pipe column (1) is formed by welding a square steel pipe center column (13), a square steel pipe lower column (14), a cantilever beam section, a flange plate (16) and an inclined strut part, the square steel pipe upper column (2) with the cantilever beam section is formed by welding a cantilever beam section (15) and a square steel pipe upper column (12), the I-beam section (3) with an inclined strut rod is formed by connecting an inclined strut rod and the I-beam section through a high-strength bolt, a first connecting device (6) is formed by an upper flange inner cover plate (17), a lower flange outer cover plate (18), an inverted L-shaped web shear plate (19) and a high-strength bolt group, an I-shaped web shear plate flange base plate (20) is added on the inner side of the upper flange inner cover plate, an I-shaped web plate base plate (21) is added on the inner side of the inverted L-shaped web shear plate, a third connecting device (8) and a fourth connecting device (9) are formed by a flange shear plate, a straight web plate and a, the second connecting device (7), the fifth connecting device (10) and the sixth connecting device (11) are high-strength bolt groups, the square steel pipe column with the cantilever beam section is connected with the I-beam section with the inclined support rod through the first connecting device, the welded and combined square steel pipe column is connected with the upper square steel pipe column with the cantilever beam section through the second connecting device, the Y-shaped diagonal brace (4) is connected with the welded and combined square steel pipe column, the I-beam section with the inclined support rod and the diagonal brace energy dissipation section (5) through the third connecting device (8), the fourth connecting device (9) and the fifth connecting device (10) respectively, and the diagonal brace energy dissipation section is connected with the Y-shaped diagonal brace and the welded and combined square steel pipe column through the fifth connecting device (10) and the sixth connecting device (11) respectively.
Claims (2)
1. The utility model provides a big clearance just takes restorable function steel frame center support system of ring flange which characterized in that: the system comprises two welded and combined square steel pipe columns, two square steel pipe upper columns with cantilever beam sections, an I-beam section with an inclined support rod, two Y-shaped inclined struts, two inclined strut energy consumption sections, two groups of first connecting devices, two groups of second connecting devices, two groups of third connecting devices, two groups of fourth connecting devices, two groups of fifth connecting devices and two groups of sixth connecting devices; the upper flange connecting plate is arranged into the inner cover plate type, when the inner cover plate deforms, the inner cover plate can be tightly contacted with the inverted L-shaped web shearing plate, and the inverted L-shaped web shearing plate can control the buckling deformation of the upper flange cover plate, so that the buckling prevention purpose is realized; the energy consumption element is arranged at the inclined strut, and absorbs energy when the inclined strut is stressed, so that the inclined strut is prevented from being unstably damaged, the integral lateral resistance of the structure is improved, and the door opening can be formed at the position where the strut is arranged while the integral lateral resistance and the integral stability of the structure are improved, so that the design form is more flexible, and different structural forms can be met; the welded and combined square steel pipe column comprises a square steel pipe center column, a square steel pipe lower column with the same height as the cantilever beam section, a flange plate and two diagonal support members, wherein the flange plate is welded at the upper end of the square steel pipe center column; the upper column of the square steel pipe with the cantilever beam section is formed by welding the cantilever beam section and the upper column of the square steel pipe with the same height as the cantilever beam section; the I-beam section with the inclined support rods comprises two inclined support rods and an I-beam section, the two inclined support rods are connected to the middle part of the lower flange of the I-beam section through high-strength bolt groups, the two inclined support rods are splayed, and the lower parts of the two inclined support pieces are connected with the Y-shaped inclined support through a fourth connecting device; the upper column of the square steel pipe with the cantilever beam section is connected with the I-beam section through a first connecting device, because the flange heights of the cantilever beam section and the I-beam section are different from the beam rib thicknesses, the flange heights of the connecting positions of the two beam sections are the same by adding an I-beam section upper flange base plate on the inner side of an upper flange inner cover plate, and an I-beam section web base plate is added on the inner side of an inverted L-shaped web shear plate, so that the web thicknesses of the connecting positions of the two beam sections are the same, the I-beam section upper flange base plate is tightly attached to the I-beam section upper flange, the upper flange inner cover plate is tightly attached to the I-beam section upper flange base plate and the cantilever beam section upper flange, the lower flange outer cover plate is tightly attached to the I-beam section and the cantilever beam section lower flange, and then the cantilever beam section and; the first connecting device comprises two upper flange inner cover plates, a lower flange outer cover plate, two inverted L-shaped web shearing plates and a high-strength bolt group, wherein the two upper flange inner cover plates are positioned on the inner sides of the upper flanges of the I-beam sections and are symmetrically arranged on two sides of the web of the I-beam sections, the upper flange inner cover plates and the lower flange outer cover plates are used for connecting the upper flanges and the lower flanges of the cantilever beam sections and the I-beam sections, the inverted L-shaped web shearing plates are used for connecting the web of the cantilever beam sections and the web of the I-beam sections, and the distance between the inverted L-shaped web shearing plates and the upper flange inner cover plates is 5-10 mm; the welding combination square steel pipe column and the square steel pipe upper column with the cantilever beam section are connected through a second connecting device, the connecting position is located at the flange of the welding combination square steel pipe column and the lower square annular partition plate of the cantilever beam section of the square steel pipe upper column with the cantilever beam section, and the lower end of the Y-shaped inclined strut is connected with the upper end of the energy consumption section of the inclined strut through a fifth connecting device.
2. The large-clearance central support system with the recoverable functional steel frame provided with the flange plates, according to claim 1, is characterized in that: the second connecting device consists of a high-strength bolt group; the third connecting device and the fourth connecting device are composed of two flange cover plates, two straight web shear plates and a high-strength bolt group; the fifth connecting device and the sixth connecting device are composed of high-strength bolt groups, and the bolts are annularly arranged along the periphery of the plate.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910071697.4A CN109797857B (en) | 2019-01-25 | 2019-01-25 | Large-clearance steel frame center supporting system with flange and capable of recovering function |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910071697.4A CN109797857B (en) | 2019-01-25 | 2019-01-25 | Large-clearance steel frame center supporting system with flange and capable of recovering function |
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| CN109797857A CN109797857A (en) | 2019-05-24 |
| CN109797857B true CN109797857B (en) | 2021-03-02 |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011179269A (en) * | 2010-03-03 | 2011-09-15 | Nagaoka Tekko Kk | Method of construction of steel brace for aseismatic reinforcement |
| EP2468986A2 (en) * | 2010-12-14 | 2012-06-27 | Simpson Strong-Tie Company, Inc. | Moment frame connector |
| CN103088918B (en) * | 2013-02-05 | 2015-12-09 | 北京建筑大学 | There is after a kind of shake the novel pre-stressed steel frame beam column joint of Self-resetting function |
| CN106869325A (en) * | 2017-02-17 | 2017-06-20 | 北京工业大学 | A kind of assembled channel-section steel for recovering function punches beam column node connection device |
| CN206941801U (en) * | 2017-05-09 | 2018-01-30 | 北京建筑大学 | A kind of assembled accentric support steel frame system of replaceable dissipative links |
| CN109057013A (en) * | 2018-07-22 | 2018-12-21 | 北京工业大学 | Self-resetting can assemble multistage beam concentrically braced steel frame after shake |
-
2019
- 2019-01-25 CN CN201910071697.4A patent/CN109797857B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011179269A (en) * | 2010-03-03 | 2011-09-15 | Nagaoka Tekko Kk | Method of construction of steel brace for aseismatic reinforcement |
| EP2468986A2 (en) * | 2010-12-14 | 2012-06-27 | Simpson Strong-Tie Company, Inc. | Moment frame connector |
| CN103088918B (en) * | 2013-02-05 | 2015-12-09 | 北京建筑大学 | There is after a kind of shake the novel pre-stressed steel frame beam column joint of Self-resetting function |
| CN106869325A (en) * | 2017-02-17 | 2017-06-20 | 北京工业大学 | A kind of assembled channel-section steel for recovering function punches beam column node connection device |
| CN206941801U (en) * | 2017-05-09 | 2018-01-30 | 北京建筑大学 | A kind of assembled accentric support steel frame system of replaceable dissipative links |
| CN109057013A (en) * | 2018-07-22 | 2018-12-21 | 北京工业大学 | Self-resetting can assemble multistage beam concentrically braced steel frame after shake |
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