CN109653359B - A self-resetting steel frame center support system with large headroom and flanges - Google Patents
A self-resetting steel frame center support system with large headroom and flanges Download PDFInfo
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- CN109653359B CN109653359B CN201910071698.9A CN201910071698A CN109653359B CN 109653359 B CN109653359 B CN 109653359B CN 201910071698 A CN201910071698 A CN 201910071698A CN 109653359 B CN109653359 B CN 109653359B
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 59
- 239000010959 steel Substances 0.000 title claims abstract description 59
- 238000011161 development Methods 0.000 claims abstract description 8
- 230000006378 damage Effects 0.000 claims abstract description 6
- 238000009825 accumulation Methods 0.000 claims abstract description 3
- 238000003466 welding Methods 0.000 claims description 10
- 238000005265 energy consumption Methods 0.000 claims description 8
- 238000010008 shearing Methods 0.000 claims 4
- 238000005192 partition Methods 0.000 claims 1
- 238000013461 design Methods 0.000 abstract description 10
- 230000021715 photosynthesis, light harvesting Effects 0.000 abstract description 9
- 238000012545 processing Methods 0.000 abstract description 3
- 238000010276 construction Methods 0.000 description 11
- 238000000034 method Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
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- 238000011160 research Methods 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
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- 230000002787 reinforcement Effects 0.000 description 1
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- 239000002699 waste material Substances 0.000 description 1
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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
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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
- E04B2001/2406—Connection nodes
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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
- E04B2001/2466—Details of the elongated load-supporting parts
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Abstract
本发明涉及一种大净空且带法兰盘的自复位钢框架中心支撑体系，属于结构工程领域。本发明的斜撑体系为装配式防屈曲Y字形支撑，斜撑位置处设有耗能元件，提高了斜撑体系的整体稳定性和结构的整体抗侧力，同时能在设置支撑的位置开设门洞口，使设计形式更加灵活，能满足不同结构形式。通过增加新型组合自复位装置，能提高梁的整体承载力且能避免组合自复位装置中拉索预张力引起的对工字梁段的超应力负荷，通过施加预应力拉索预张力，使结构能够控制塑性变形的发展和损伤的积累，使结构具有良好的抗震性能和复位能力。该装置各构件都由工厂加工而成，且全由高强螺栓连接安装，易于实现构件加工精度、质量的高要求和快速装配。
The invention relates to a self-resetting steel frame center support system with a large headroom and a flange, and belongs to the field of structural engineering. The diagonal bracing system of the invention is an assembled anti-buckling Y-shaped bracing, and energy dissipation elements are arranged at the diagonal bracing position, which improves the overall stability of the diagonal bracing system and the overall lateral force resistance of the structure, and can be opened at the position where the bracing is arranged. The door opening makes the design form more flexible and can meet different structural forms. By adding a new combined self-resetting device, the overall bearing capacity of the beam can be improved and the overstress load on the I-beam section caused by the pretension of the cable in the combined self-resetting device can be avoided. It can control the development of plastic deformation and the accumulation of damage, so that the structure has good seismic performance and reset ability. All components of the device are processed by the factory, and are all connected and installed by high-strength bolts, which is easy to achieve high requirements for component processing accuracy, quality and rapid assembly.
Description
Technical Field
The invention relates to a large-clearance self-resetting steel frame center supporting system with 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 functional structure capable of recovering the use function without repair or 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 recovering the 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 the single pursuit of collapse resistance to the compromise of the ability to recover after the earthquake.
In order to overcome the problems, the invention provides a large-clearance self-resetting steel frame center supporting system with a flange plate. By adding the novel combined self-resetting device, the integral bearing capacity of the beam can be improved, and the overstress load on the I-beam section caused by the pretension of the stay cable in the combined self-resetting device can be avoided; the energy dissipation element is arranged at the inclined strut, the energy dissipation element absorbs energy when the inclined strut is stressed, the inclined strut is prevented from being damaged by instability, the integral lateral resistance of the structure is improved, the integral lateral resistance and the integral stability of the structure are improved, and meanwhile, the door opening can be formed in the position where the support is arranged, so that the design form is more flexible, and different structural forms can be met.
Disclosure of Invention
The invention provides a large-clearance self-resetting steel frame center support system with a flange plate, and aims to solve the self-resetting problem of a frame system; meanwhile, a novel supporting system is introduced, and the problem in the frame is solved.
In order to achieve the purpose, the invention adopts the following technical means:
the utility model provides a big air-clearing just takes self-healing 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, a group of combined self-resetting devices, 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; compared with a steel truss support and steel truss barrel structure system, the system is characterized in that energy dissipation elements are arranged at the positions of the inclined struts, the energy dissipation elements absorb energy through self internal buckling deformation when the inclined struts are stressed, the bearing capacity and stability of the inclined strut system are improved, meanwhile, the energy dissipation elements can be quickly installed through connecting devices, the assembled 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, and meanwhile, door openings can be formed at the positions where the supports are arranged, so that the design form is more flexible, and different structural forms can be met; the system has a post-earthquake self-resetting function, the prestressed stay cable is fixed through a tool, the cantilever beam section and the I-beam section are tightly connected through a first connecting device, and the combination of the upper flange inner cover plate, the lower flange outer cover plate and the prestressed stay cable can improve the overall bearing capacity of the beam and avoid the overstress load on the I-beam section caused by the prestressed stay cable pretension in the combined self-resetting device; the cantilever beam section is tightly propped against the I-beam section, no gap is left after installation, the prestress loss of a guy cable caused by the rotation of the beam end is prevented, if the structure generates residual deformation after earthquake, the deformation is gradually recovered by loosening the connecting bolt, and the earthquake resistance and the resetting capability of the structure are improved; 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.
The utility model provides a big air-clearing just takes self-healing steel frame center support system of ring flange which characterized in that: because the flange and the beam rib of the cantilever beam section and the I-beam section are different in thickness, the two beam sections at the connecting position are the same in thickness by adding the I-beam section upper flange base plate and the I-beam section web base plate when the two beam sections are connected, and then the two beam sections are connected through the first connecting device.
The utility model provides a big air-clearing just takes self-healing 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, make the bracing bearing capacity promote, prevent that the bracing from taking place the unstability destruction, improve bracing system stability, energy dissipation component passes through connecting device simultaneously and can realize quick installation, 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) There is a combined self-resetting device in the structure. The combined self-resetting device consists of a first connecting device, a prestressed inhaul cable and a tool, and compared with the traditional inhaul cable combined self-resetting device, the combined self-resetting device formed by the cover plate and the prestressed inhaul cable has the advantages that under the condition that the prestressed inhaul cable has the same pretension, the integral bearing capacity of a beam adopting the combined self-resetting device is higher; under the condition that the bearing capacity of the beam is the same, the requirement for the pretension of the stay cable of the combined self-resetting device is reduced, and the overstress load of the pretension of the stay cable on the I-shaped beam section is avoided; by applying the pretension of the prestressed stay cable, the structure controls the development of plastic deformation and the accumulation of damage, so that the structure has good anti-seismic performance and resetting capability.
(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 components, 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 components 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 self-resetting steel frame center support system with a large clear space and a flange plate;
FIG. 2 is a disassembled view of a self-resetting steel frame center support system with a large clear space and a flange plate;
FIG. 3 is a front view of a large clear and flanged self-resetting steel frame center support system;
FIG. 4 is a side view of a large clear and flanged self-resetting steel frame center support system;
FIG. 5 is a top view of a large clear and flanged self-resetting steel frame center support system;
FIG. 6 is a three-dimensional diagram of a diagonal brace of a self-resetting steel frame center support system with a large clear space and a flange plate;
fig. 7 is an exploded view of a self-resetting steel frame center support system with large clearance and a flange plate.
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 steel frame central support system capable of opening a door comprises 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-Combined self-resetting device;
7-first connecting means;
8-second connecting means;
9-third connecting means;
10-fourth connecting means;
11-fifth connecting means;
12-sixth connecting means;
13-upper column of square steel tube;
14-square steel tube central column;
15-lower column of square steel tube;
16-cantilever beam section;
17-flange plate;
18-tooling;
19-prestressed stay cable;
20-upper flange inner cover plate;
21-lower flange outer cover plate;
22-inverted L-shaped web shear plate;
23-flange backing plate on the I-beam section;
24-web plate backing plate of I-shaped beam section.
As shown in fig. 1-7, the self-resetting steel frame center supporting system with large clearance and flange plates is described; the system 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 an inclined supporting rod, two Y-shaped inclined struts (4), two inclined strut energy consumption sections (5), a group of combined self-resetting devices (6), two groups of first connecting devices (7), two groups of second connecting devices (8), two groups of third connecting devices (9), two groups of fourth connecting devices (10), two groups of fifth connecting devices (11) and two groups of sixth connecting devices (12); the welding combination square steel pipe column (1) is formed by welding a square steel pipe center column (14), a square steel pipe lower column (15), a cantilever beam section, a flange plate (17) and an inclined support section, the square steel pipe upper column (2) with the cantilever beam section is formed by welding a cantilever beam section (16) and a square steel pipe upper column (13), a tool (18) is welded on a cantilever beam, an I-shaped beam section (3) with an inclined support rod is formed by connecting an inclined support rod and an I-shaped beam section through a high-strength bolt, the self-resetting combination device is formed by a prestress stay cable (19), a tool (18) and a first connecting device, the first connecting device (7) is formed by an upper flange inner cover plate (20), a lower flange outer cover plate (21), an inverted L-shaped web plate shear plate (22) and a high-strength bolt group, the third connecting device (9) and the fourth connecting device (10) are formed by a flange cover plate, a straight shear web plate and a high-strength bolt group, the second connecting device (8), the fifth connecting device (11) and the sixth connecting device (12) are high-strength bolt groups, the upper column of the square steel pipe with the cantilever beam section is connected with the I-shaped beam section with the inclined support rod through the first connecting device, because the thicknesses of the flange and the beam rib of the cantilever beam section and the I-shaped beam section are different, when two beam sections are connected, the thicknesses of the two beam sections at the connecting position are the same by adding an I-beam section upper flange base plate (23) and an I-beam section web plate base plate (24), a welding combined square steel pipe column is connected with a square steel pipe upper column with a cantilever beam section through a second connecting device, a Y-shaped inclined strut (4) is connected with the welding combined square steel pipe column, the I-beam section with an inclined supporting rod and an inclined strut energy consumption section (5) through a third connecting device, a fourth connecting device and a fifth connecting device respectively, and the inclined strut energy consumption section is connected with the Y-shaped inclined strut and the welding combined square steel pipe column through a fifth connecting device and a sixth connecting device respectively.
Claims (2)
1. The utility model provides a big air-clearing just takes self-healing 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, a group of combined self-resetting devices, 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 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 cantilever beam sections and the upper and lower flanges of 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, the L-shaped corner positions of the inverted L-shaped web shearing plates are close to the upper flanges, and the inverted L-shaped web shearing plates tightly push the upper flange; all components of the system are processed by factories and are connected and installed by high-strength bolts on site; the self-resetting device of the system can reduce the requirement on the pretension of the stay rope under the condition that the bearing capacity of beam-column nodes is the same, and effectively avoids the overstress load of the stay rope on the I-beam section due to overlarge pretension; by applying the pretension of the prestressed stay cable, the structure controls the development of plastic deformation and the accumulation of damage, so that the structure has good anti-seismic performance and resetting capability; the welded and combined square steel pipe column comprises a square steel pipe center column, a square steel pipe lower column, a cantilever beam section, a flange plate and two diagonal support members, wherein the height of the square steel pipe lower column is the same as that of the cantilever beam section; the upper column of the square steel pipe with the cantilever beam section is formed by welding the cantilever beam section and an 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 combined self-resetting device consists of two groups of first connecting devices, four tools and a prestressed inhaul cable, wherein the tool is welded at the arc starting position of the cantilever beam section, the prestressed stay cable is fixed by the tool, the upper column of the square steel pipe with the cantilever beam section is connected with the I-shaped beam section by the first connecting device, no gap is left between the cantilever beam section and the I-shaped beam section, because the flange heights of the cantilever beam section and the I-shaped beam section are different from the thickness of the beam rib, when the two beam sections are connected, the flange heights of the two beam sections at the connecting position are the same by adding the flange backing plate on the I-beam section, the thicknesses of webs of two beam sections are the same by adding an I-beam section web base plate, an I-beam section upper flange base plate is tightly attached to an I-beam section upper flange, an upper flange inner cover plate is tightly attached to the I-beam section upper flange base plate and a cantilever beam section upper flange, a lower flange outer cover plate is tightly attached to the I-beam section and the cantilever beam section lower flange, and then the I-beam section upper flange base plate and the cantilever beam section upper flange are connected through a first connecting device; 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 self-resetting steel frame center support system with the flange plates according to claim 1, characterized in that: the second connecting device consists of a high-strength bolt group, and the high-strength bolts are annularly arranged along the periphery of the flange plate; 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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| CN201910071698.9A CN109653359B (en) | 2019-01-25 | 2019-01-25 | A self-resetting steel frame center support system with large headroom and flanges |
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| CN201910071698.9A CN109653359B (en) | 2019-01-25 | 2019-01-25 | A self-resetting steel frame center support system with large headroom and flanges |
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| JP5340998B2 (en) * | 2010-03-03 | 2013-11-13 | 長岡鉄工株式会社 | Construction method of seismic reinforcement steel brace |
| CA2761545C (en) * | 2010-12-14 | 2019-10-08 | 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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| CN109653359A (en) | 2019-04-19 |
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