CN109797855B - Large-clearance eccentric supporting system with function-recoverable steel frame - Google Patents
Large-clearance eccentric supporting system with function-recoverable steel frame Download PDFInfo
- Publication number
- CN109797855B CN109797855B CN201910071466.3A CN201910071466A CN109797855B CN 109797855 B CN109797855 B CN 109797855B CN 201910071466 A CN201910071466 A CN 201910071466A CN 109797855 B CN109797855 B CN 109797855B
- Authority
- CN
- China
- Prior art keywords
- shaped
- cover plate
- beam section
- flange cover
- column
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Abstract
The invention relates to a large-clearance eccentric supporting system with a steel frame capable of recovering functions, and belongs to the field of structural engineering. The system comprises two welded combined special-shaped columns, two I-shaped beam sections with inclined supporting rods, two Y-shaped inclined struts, an energy-consuming beam section and a plurality of connecting devices; all components of the system are processed by factories, so that the precision and the quality are easier to control, and the components are connected and installed by high-strength bolts on site, so that the rapid assembly is easy to realize; through special treatment of the beam-column connecting node, the cover plate can be bent to consume energy, the deformation of the cover plate can be limited to be overlarge, and the purposes of more stable bearing capacity and more energy consumption of the node can be achieved; the introduction of energy-consuming beam sections and the design concept of eccentric support can play a role of structural fuse, simultaneously change the size and form of the support, and can open a door opening at the position where the support is arranged, thereby saving the steel consumption and improving the economic benefit and the applicability.
Description
Technical Field
The invention relates to a large-clearance eccentric supporting system with a steel frame capable of recovering functions, and belongs to the technical field of structural engineering.
Background
The assembled steel structure building system becomes a new direction and a new trend of the development of the building steel structure, and has the advantages of design standardization, production industrialization, construction assembly, green building energy conservation, environmental protection and the like. The existing multi-story high-rise public building and residential building can cause the termination of the use of the building once earthquake damage occurs, so that the social and economic recovery and the life of people are seriously influenced, the repair work after the earthquake is time-consuming and labor-consuming, and the study on a large number of post-earthquake damage forms of the building shows that the main damage form of the structure is the damage of beam-column connecting nodes, so that the energy consumption capability of the beam-column connecting nodes can be improved through reasonable design, the post-earthquake replacement of structural components can be realized, and the important problem of structural earthquake resistance study is solved.
In order to overcome the problems, the patent provides a large-clearance eccentric supporting system with a recoverable functional steel frame. Through special treatment of the beam-column connecting node, the cover plate can be bent to consume energy, the deformation of the cover plate can be limited to be overlarge, and the purposes of more stable bearing capacity and more energy consumption of the node can be achieved; the introduction of energy-consuming beam sections and the design concept of eccentric support can play a role of structural fuse, simultaneously change the size and form of the support, and can set up a door opening at the position where the support is arranged, thereby saving the steel consumption and improving the economic benefit and the applicability.
Disclosure of Invention
The invention provides a large-clearance eccentric supporting system with a steel frame with a recoverable function, and aims to improve the energy consumption capability of beam-column connection nodes; 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 but recovery function steel frame eccentric bracing system of clean air which characterized in that: the system comprises two welded combined special-shaped columns, two I-shaped beam sections with inclined supporting rods, two Y-shaped inclined struts, an energy-consuming beam section and a plurality of connecting devices; compared with a steel truss support and steel truss barrel structure system, the system can improve the overall lateral force resistance of the structure and can be provided with a door opening at the position where the support is arranged; the beam column node connecting device of the system has the function of restorable after earthquake, the beam end is reinforced by thickening and welding the flange thickness of the upper cantilever beam section of the combined special-shaped column, the plastic hinge moves outwards and the rotating capability is improved by the connecting mode of the cover plate and the gap arrangement between the upper cantilever beam section and the I-shaped beam section of the welded combined special-shaped column, the plastic damage only occurs in the splicing area under the earthquake load, the elasticity is kept on the rest parts, and the using function of the main body structure can be restored only by replacing the beam column node connecting device after the earthquake; the design of the inverted L-shaped web plate connecting piece can effectively control the buckling amplitude of the upper flange cover plate; the upper flange cover 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 connecting piece in a contact mode, the inverted L-shaped web connecting piece can limit buckling deformation of the upper flange cover plate, and the buckling prevention purpose is achieved.
The welded combined special-shaped column is formed by welding an upper steel pipe column, two middle steel pipe columns, two cantilever beam sections, a first diagonal brace and a third diagonal brace; the I-beam section with the inclined support rod is formed by connecting an I-beam section and a second inclined support rod through a first connecting device; the system is arranged in bilateral symmetry, two welded combined special-shaped columns are respectively connected with two I-beam sections with inclined support rods through beam column joint connecting devices, and the two I-beam sections with inclined support rods are arranged at two ends of an energy consumption beam section and are respectively connected with the energy consumption beam section through two groups of second connecting devices; the two Y-shaped inclined struts are respectively connected with the welding combination special-shaped column and the I-shaped beam section with the inclined supporting rods through six third connecting devices, the lower ends of the Y-shaped inclined struts are connected with the first inclined supporting rods of the welding combination special-shaped column through the third connecting devices, one side of the upper ends of the Y-shaped inclined struts is connected with the second inclined supporting rods in the I-shaped beam section with the inclined supporting rods through the third connecting devices, and the other side of the upper ends of the Y-shaped inclined struts is connected with the third inclined supporting rods of the welding combination special-shaped column through the third connecting devices.
The cantilever beam section and the I-beam section on the welded and combined special-shaped column of the system are not tightly propped, a gap of 5-20mm is reserved between the cantilever beam section and the I-beam section, the I-beam section is ensured to have rotation capacity, and the gap between the upper flange cover plate and the inverted L-shaped web connecting piece is 5-10mm, so that the cover plate is ensured to be buckled and consume energy, the deformation of the cover plate is limited, and the stability and the energy consumption capacity of the bearing capacity of the node are improved; the flange cover plate is designed in an inner cover plate mode, so that the flange cover plate is conveniently connected with a floor slab, the lower flange cover plate is designed in an outer cover plate mode, bolts at the lower flange of the cantilever beam section and the lower flange of the I-shaped beam section on the special-shaped column are welded and combined in an asymmetric mode, the purpose is to install the lower flange cover plate of the cantilever beam section firstly, and the lower flange cover plate can be used as a support of the I-shaped beam section in the installation process, so that the construction speed is accelerated, and the construction quality is.
This system introduces power consumption beam section design theory simultaneously, and anti side device sets up to eccentric brace, and power consumption beam section plays the effect of structure "fuse", and under the effect of strong earthquake load, the structure also carries out energy dissipation through power consumption beam section, and roof beam, post and support major component can not take place to surrender in advance.
The advantages of the patent are mainly shown in the following aspects:
1. the design of type of falling L web connecting piece in this system utilizes the theory of buckling prevention, can provide enough holding power for the edge of a wing apron through the contact top with type of falling L web connecting piece edge of a wing tightly after the upper flange apron buckles, carries out effective control to the bucking amplitude of upper flange apron, can improve beam column connected node's power consumption ability simultaneously, makes the node bearing capacity more stable.
2. Compared with a steel truss supporting structure system and a steel truss barrel structure system, the system has the advantages that the overall lateral force resistance of the structure is improved, and meanwhile, the door opening can be formed in the supporting position, so that the design form is more flexible and the system is more applicable.
3. The upper flange cover plate in the system is arranged to be an inner cover plate type, so that the concrete outside the upper flange is more smooth, the lower flange cover plate is arranged to be an outer cover plate type, the upper flange cover plate can be used as a support of an I-beam in the installation process, and meanwhile, the buckling deformation of the flange cover plate can be observed conveniently by the joint in the use process, so that the system has good performance visibility and replacement interpretability.
4. All components and node connecting device welding parts of the system are completed in a factory, the welding seam precision and quality are easier to control, only high-strength bolts are adopted to assemble the components on site, the fastening work of the bolts is convenient and fast, the construction speed and the construction quality are greatly improved, and the system is suitable for the development of assembled steel structures.
Drawings
FIG. 1 is a three-dimensional view of a high clearance recoverable functional steel frame eccentric support system;
FIG. 2 is a disassembled view of a high-clearance recoverable functional steel frame eccentric support system;
fig. 3 is a front view of a recoverable functional steel frame eccentric support system with large clearance.
Detailed Description
Embodiments of the present patent are described in detail below with reference to the accompanying drawings.
As shown in FIGS. 1 to 3, a recoverable functional steel frame eccentric supporting system with large clearance comprises the following components.
1-welding a combined special-shaped column;
2-I-beam section with inclined support rod;
3-Y-shaped diagonal bracing;
4-energy consumption beam section;
5-beam column node connecting device;
6-first connecting means;
7-second connecting means;
8-third connecting means;
9-upper steel pipe column;
10-middle square steel pipe column;
11-cantilever beam section;
12-i-beam section;
13-first diagonal support bar;
14-second diagonal support bar;
15-third diagonal bracing bar;
16-upper flange cover plate;
17-bottom flange cover plate;
18-inverted L-web connector;
as shown in fig. 1 to 3, the system comprises two welded and combined special-shaped columns 1, two i-beam sections 2 with diagonal support rods, two Y-shaped diagonal braces 3, an energy-consuming beam section 4 and a plurality of connecting devices, wherein the welded and combined special-shaped column 1 is formed by welding an upper steel pipe column 9, two middle steel pipe columns 10, two cantilever beam sections 11 and a first diagonal support rod 13, and the i-beam section 2 with the diagonal support rods is formed by connecting an i-beam section 12 and a second diagonal support rod 14 through a first connecting device 6.
As shown in figures 1 and 2, the system is arranged in bilateral symmetry, two welded combined special-shaped columns 1 are connected with two I-beam sections 2 with inclined support rods through beam column node connecting devices 5, each beam column node connecting device 5 comprises an upper flange cover plate 16, a lower flange cover plate 17, an inverted L-shaped web connecting piece 18 and a high-strength bolt group, the two I-beam sections 2 with the inclined support rods are arranged at two ends of an energy-consuming beam section 4 and are connected with the energy-consuming beam section 4 through two groups of second connecting devices 7, the two Y-shaped inclined struts 3 are connected with the welded combined special-shaped columns 1 and the I-beam sections 2 with the inclined support rods through six third connecting devices 8, the lower ends of the Y-shaped inclined struts 3 are connected with first inclined support rods 13 of the welded combined special-shaped columns through the third connecting devices 8, one upper ends of the Y-shaped inclined struts 3 are connected with second inclined support rods 14 in the I-beam sections with the inclined support rods through the third connecting devices 8, the other side is connected with a third inclined supporting rod 15 of the welding combination special-shaped column through a third connecting device 8.
As shown in fig. 1, the welded and combined special-shaped column cantilever beam section 11 and the I-beam section 12 are not tightly propped, a gap of 5-20mm is reserved between the two, and the gap between the upper flange cover plate 16 and the inverted L-shaped web connecting piece 18 is 5-10 mm; in the beam column joint connecting device 5, the upper flange cover plate 16 is designed to be an inner cover plate type, the lower flange cover plate 17 is designed to be an outer cover plate type, and bolts at the lower flanges of the upper cantilever beam section 11 and the I-shaped beam section 12 of the welded and combined special-shaped column are asymmetrically arranged, so that the lower flange cover plate 17 of the cantilever beam section is firstly installed, and the lower flange cover plate 17 can be used as a support for the I-shaped beam section 12 in the installation process.
Claims (2)
1. The utility model provides a big but recovery function steel frame eccentric bracing system of clean air which characterized in that: the system comprises two welded combined special-shaped columns, two I-shaped beam sections with inclined supporting rods, two Y-shaped inclined struts, an energy-consuming beam section and a plurality of connecting devices; the system adopts the design of the inverted L-shaped web connecting piece, utilizes the buckling-restrained concept, can provide enough supporting force for the flange cover plate through the contact and jacking with the flange of the inverted L-shaped web connecting piece after the upper flange cover plate is buckled, effectively controls the buckling amplitude of the upper flange cover plate, can improve the energy consumption capability of beam-column connecting nodes, and enables the bearing capacity of the nodes to be more stable; the upper flange cover plate of the system is arranged into an inner cover plate type, so that the outer concrete of the upper flange can be more smooth, the lower flange cover plate is arranged into an outer cover plate type, the lower flange cover plate can be used as a support of an I-beam in the installation process, and meanwhile, the buckling deformation of the flange cover plate can be conveniently observed in the use process of a node, so that the system has good performance visibility and replacement interpretability; the system introduces an energy consumption beam section design concept, the anti-side device is arranged as an eccentric support, the energy consumption beam section plays a role of a structural fuse, under the action of strong earthquake load, the structure also dissipates energy through the energy consumption beam section, and the beam, the column and main support components cannot yield in advance; the Y-shaped inclined strut of the system, each main body component and the connecting device form a supporting system, and compared with a steel truss supporting structure system and a steel truss barrel structure system, the Y-shaped inclined strut has the advantages that the overall lateral force resistance of the structure is improved, and meanwhile, a door opening can be formed in the supporting position, so that the design form is more flexible and the applicability is higher; the welded combined special-shaped column is formed by welding an upper steel pipe column, two middle steel pipe columns, two cantilever beam sections, a first diagonal brace and a third diagonal brace, the two middle steel pipe columns are welded at the upper end and the lower end of the upper steel pipe column, the two cantilever beam sections are welded on the two middle steel pipe columns, the first diagonal brace is welded at the joint of a lower cantilever beam and the upper steel pipe column, and the third diagonal brace is welded at the joint of an upper cantilever beam and the upper steel pipe column; the I-beam section with the inclined support rod is formed by connecting an I-beam section, a second inclined support rod and a first connecting device; the system is arranged symmetrically left and right, two welding combined special-shaped columns are respectively connected with two I-shaped beam sections with inclined support rods through beam column joint connecting devices, the number of the beam column joint connecting devices is two, each beam column joint connecting device comprises two upper flange cover plates, a lower flange cover plate and two inverted L-shaped web connecting pieces, the two upper flange cover plates are positioned on the inner sides of the upper flanges of the I-shaped beam sections and are respectively arranged symmetrically on two sides of webs of the I-shaped beam sections, the two inverted L-shaped web connecting pieces are respectively arranged symmetrically on two sides of webs of the I-shaped beam sections, the gap between the upper flange cover plates and the inverted L-shaped web connecting pieces is 5-10mm, the cover plates are ensured to be bent and consume energy, the cover plates can be limited to deform, one lower flange cover plate is positioned on the outer sides of the lower flanges of the I-shaped beam sections, the upper cantilever beam sections and the I-shaped beam sections of the welding combined, ensuring that the I-beam section has the rotation capability; the two I-shaped beam sections with the inclined support rods are arranged at two ends of the energy consumption beam section and are connected with the energy consumption beam section through two groups of second connecting devices; two Y type bracing pass through six third connecting device and weld combination dysmorphism post and take the I-beam section of bearing diagonal pole to be connected, Y type bracing lower extreme passes through the third connecting device with the first bearing diagonal pole of weld combination dysmorphism post to be connected, Y type bracing upper end one limit is connected with the second bearing diagonal pole in the I-beam section of taking the bearing diagonal pole through the third connecting device, another limit in Y type bracing upper end is connected with the third bearing diagonal pole of weld combination dysmorphism post through the third connecting device.
2. The large-clearance eccentric support system with a recoverable functional steel frame according to claim 1, wherein: the first connecting devices are high-strength bolt groups at the connecting positions of the I-beam sections and the second inclined supporting rods, and the number of the high-strength bolt groups is two; the second connecting devices are high-strength bolt groups at the connecting positions of the I-beam section with the inclined support rods and the energy consumption beam section, and the high-strength bolt groups are divided into two groups and are arranged at two ends of the energy consumption beam section; the third connecting device comprises two flange cover plates and two web connecting plates, and the number of the flange cover plates is 6, and the third connecting device is used for connecting two Y-shaped inclined struts with the 6 inclined struts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910071466.3A CN109797855B (en) | 2019-01-25 | 2019-01-25 | Large-clearance eccentric supporting system with function-recoverable steel frame |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910071466.3A CN109797855B (en) | 2019-01-25 | 2019-01-25 | Large-clearance eccentric supporting system with function-recoverable steel frame |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109797855A CN109797855A (en) | 2019-05-24 |
| CN109797855B true CN109797855B (en) | 2021-01-15 |
Family
ID=66558866
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910071466.3A Active CN109797855B (en) | 2019-01-25 | 2019-01-25 | Large-clearance eccentric supporting system with function-recoverable steel frame |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109797855B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111644142A (en) * | 2020-06-11 | 2020-09-11 | 王艳军 | Parallel reaction instrument for chemical research |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5340998B2 (en) * | 2010-03-03 | 2013-11-13 | 長岡鉄工株式会社 | Construction method of seismic reinforcement steel brace |
| CN105863050B (en) * | 2016-04-17 | 2018-12-07 | 北京工业大学 | A kind of assembled wave webs beam column combined joint attachment device of recoverable function |
| CN105735472B (en) * | 2016-04-17 | 2018-04-06 | 北京工业大学 | A kind of assembled beam-column nodal connection device for recovering function |
| CN206052956U (en) * | 2016-08-31 | 2017-03-29 | 江西杭萧钢构有限公司 | A kind of H types cantilever beam-column splicing construction |
| CN106869316B (en) * | 2017-03-12 | 2019-01-25 | 东北石油大学 | The beam column edge of a wing is the group frame system and construction method of concrete filled steel tube |
| CN106869315B (en) * | 2017-03-12 | 2019-05-07 | 东北石油大学 | Concrete-filled steel tubular frame and its construction method with presstressed reinforcing steel |
-
2019
- 2019-01-25 CN CN201910071466.3A patent/CN109797855B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN109797855A (en) | 2019-05-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN211549021U (en) | Self-resetting steel frame beam-column joint with hidden staged energy dissipation damper | |
| CN111021537B (en) | Energy-consumption self-resetting steel structure beam column joint connecting device | |
| CN204753874U (en) | Die mould metal surrender power consumption attenuator is drawn to axial | |
| CN112538898A (en) | Self-resetting shearing-constraint buckling damage controllable assembly type beam-column joint | |
| CN109797855B (en) | Large-clearance eccentric supporting system with function-recoverable steel frame | |
| CN108589914B (en) | Self-resetting frame structure and construction method | |
| CN112302252B (en) | Post-earthquake repairable assembled lattice column with shear type energy dissipation damper | |
| CN111877557A (en) | Basalt fiber bionic honeycomb plate single-layer aluminum alloy combined latticed shell and construction method thereof | |
| CN103882968B (en) | Industrialization assembled is many, high-rise steel structure channel-section steel self reset curvature-prevention central supported system | |
| CN114687478B (en) | Built-in lattice column type double-steel-plate shear wall with shear wall-beam node domain | |
| CN109797856B (en) | Large-clearance functional-restorable steel frame eccentric support system with flange plate | |
| CN109707041B (en) | Large-clearance self-resetting steel frame eccentric support system | |
| CN103967149A (en) | Self-resetting line-shaped center supporting system for industrialized assembly type multistory and high-rise steel structures | |
| CN103967111A (en) | Crossed self-restoration prestress eccentric supporting system for fabricated multi-story and high-rise steel structure | |
| CN109707043B (en) | Large-clearance self-resetting steel frame eccentric support system with flange plate | |
| CN109797854B (en) | Large-clearance center support system with function-recoverable steel frame | |
| CN219431008U (en) | Assembled special-shaped column steel frame-supporting structure system capable of recovering functions | |
| CN109653359B (en) | Large-clearance self-resetting steel frame center support system with flange plate | |
| CN109797857B (en) | Large-clearance steel frame center supporting system with flange and capable of recovering function | |
| CN220580188U (en) | Assembled recoverable concrete frame beam column node | |
| CN103967116A (en) | Self-resetting line-shaped herringbone supporting system for industrialized assembly type multistory and high-rise steel structures | |
| CN219175532U (en) | Liftable H-shaped steel column with replaceable damper | |
| CN216948735U (en) | Steel structure beam column node | |
| CN214834062U (en) | Steel constructs post convenient to pour | |
| CN215106070U (en) | Assembled V-shaped eccentric supporting energy dissipation frame system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |