CN110306663B - Self-resetting full-assembly type friction energy-consumption steel frame beam-column joint - Google Patents
Self-resetting full-assembly type friction energy-consumption steel frame beam-column joint Download PDFInfo
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- CN110306663B CN110306663B CN201910523375.9A CN201910523375A CN110306663B CN 110306663 B CN110306663 B CN 110306663B CN 201910523375 A CN201910523375 A CN 201910523375A CN 110306663 B CN110306663 B CN 110306663B
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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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- Buildings Adapted To Withstand Abnormal External Influences (AREA)
Abstract
The invention relates to a self-resetting full-assembly type friction energy-consumption steel frame beam column joint which comprises a swing column, a frame beam, a beam column connecting vertical plate, a beam column connecting bottom plate and a boot beam plate, wherein the cross sections of the swing column and the frame beam are H-shaped, the swing column comprises a middle web plate and flanges on two sides, the swing column is in a disconnected type, the two sections are respectively positioned above and below the frame beam, the beam column connecting bottom plate is arranged between the swing column and the flange of the frame beam, the beam column connecting bottom plate and the flange of the frame beam are respectively provided with a connecting hole for the beam column connecting vertical plate to pass through, the middle section of the beam column connecting vertical plate passes through the connecting hole, the middle section of the beam column connecting bottom plate is tightly attached to the web plate of the frame beam and is fixedly connected with the web plate of the swing column. The technical scheme can effectively improve the plastic rotation capacity of the node, the beam columns properly swing under medium and large earthquakes, proper friction is generated between the beam columns to consume earthquake energy, the main structure is prevented from generating large plastic damage due to earthquakes, and the post-earthquake restoration is also facilitated.
Description
Technical Field
The invention belongs to the technical field of steel structure beam column nodes, and particularly relates to a self-resetting full-assembly type friction energy-consumption steel frame beam column node which is suitable for having higher requirements on earthquake-resistant energy consumption.
Background
Beam-column joints are an important component of steel frame structural systems and require greater plastic rotational capability to avoid brittle failure of the structure. In order to improve the plastic rotation capacity of the beam-column joint, the energy dissipation and shock absorption design of the beam-column joint becomes one of the key problems in the design of a steel structure. Under the action of strong shock, the plastic hinge is generated at the beam end, the plastic hinge means that fibers opposite to a certain point of a structural member are yielded but not damaged when the structural member is stressed, the point is considered as the plastic hinge, so that the structural member is changed into two structural members and one plastic hinge, and the structural members on two sides of the plastic hinge can rotate slightly. At present, most beam column nodes adopt bolts or welding to achieve node fixed connection, the beam column nodes lack plastic rotation capacity by the connection method, the structural damage of a main body in the strong earthquake process is overlarge, the residual deformation after the earthquake is large, the main body is difficult to repair, and large economic loss can be generated.
Disclosure of Invention
Aiming at the defects, the invention provides a self-resetting full-assembly friction energy-consumption steel frame beam column node, which can effectively improve the plastic rotation capacity of the node, improve the energy consumption capacity of the node, prevent the main structure from generating larger plastic damage due to earthquake, fixedly connect the beam column under small earthquake, generate proper swing under medium and large earthquake, realize low damage under large earthquake and facilitate the repair after earthquake.
The technical scheme of the invention is as follows:
a self-resetting full-assembly friction energy-consumption steel frame beam column node comprises a swing column, a frame beam, a beam column connecting vertical plate, a beam column connecting bottom plate and a shoe beam plate, wherein the sections of the swing column and the frame beam are H-shaped and comprise a middle web plate and flange edges at two sides, the swing column is in a disconnected type, the two sections are respectively positioned above and below the frame beam, the beam column connecting bottom plate is arranged between the swing column and the flange edges of the frame beam, one surface of the beam column connecting bottom plate is tightly attached to the outer surface of the flange edge of the frame beam, and the other surface of the beam column connecting bottom plate is tightly attached to the end surface of the swing column;
the beam column connecting bottom plate and the flange of the frame beam are provided with connecting holes for the beam column connecting vertical plate to penetrate through, the beam column connecting vertical plate vertically penetrates through the connecting holes, the middle part of the beam column connecting bottom plate is fixedly connected with a web of the frame beam through a common bolt, the upper part and the lower part of the beam column connecting bottom plate are slidably connected with the web of the swinging column through friction type bolts, and a friction plate is arranged between the beam column connecting vertical plate and the web contact surface of the swinging column;
the boots beam slab symmetry sets up in the edge of a wing and the beam column of rocking post and connects bottom plate contained angle department, and the double-phase adjacent limit of boots beam slab respectively with the edge of a wing lateral surface of rocking post and the surface welded fastening of beam column connection bottom plate, the edge of a wing and the beam column of frame roof beam are connected the bottom plate junction symmetry and are provided with the reset bolt that is used for connecting the two, reset bolt free end is with the nut locking, and the shank of bolt overcoat elastic element, elastic element's one end supports beam column connection bottom plate, and the other end supports the nut.
Still include the apron, the apron longitudinal symmetry sets up in the beam column connection riser surface of the web contact department of beam column connection riser and sway the post, also be equipped with the friction plate between the contact surface of apron and beam column connection riser.
The novel beam column structure is characterized by further comprising a base plate arranged between the beam column connecting vertical plate and the web plate contact surface of the frame beam, and the thickness of the base plate is equal to that of the friction plate.
The stiffening rib is vertically connected with two flanges of the frame beam and is arranged in a bilateral symmetry mode.
The friction plate is a hard alloy steel plate.
The diameter of the bolt hole for the friction bolt to pass through is larger than that of the bolt hole for the common bolt to pass through.
The elastic element is a disc spring, a spiral spring, a rubber spring, an annular spring or a combination of the above.
When the elastic element is a disc spring, the disc spring is linearly elastically stretched within the working load range.
According to the technical scheme, the transversely-through frame beam and the longitudinally-segmented swing column are adopted, the upper column section and the lower column section are connected with the frame beam through the beam-column connecting vertical plate, the beam-column connecting vertical plate is fixedly connected with the frame beam through bolts, and the upper column section and the lower column section are in sliding connection through friction type bolts.
According to the invention, the bolt holes for the friction type bolts to pass through on the beam column connecting vertical plates are larger than the bolt holes for the common bolts to pass through, so that the friction type bolts are not clamped when the swing column swings and sliding friction occurs between the beam columns, and continuous friction energy consumption is effectively realized. The friction plate is arranged between the beam column connecting vertical plate and the swing column and is made of high-hardness steel materials such as hard alloy steel, so that the hysteresis energy consumption stability of a friction node can be improved, and the problems of abrasion of the friction surface and mutual erosion of contact surface materials caused by long-time contact are solved. When the beam column node is subjected to a large lateral earthquake load, slight friction damage only occurs on the friction plate, and the friction node can effectively limit the internal force of the beam column of the main body frame, so that the main body structure is in an elastic stage. In the repair after the earthquake, if the friction plate is abraded, the friction plate is only replaced, or the loosened friction type bolt is replaced, so that the connection strength before the earthquake can be recovered, the repair is convenient and fast, and the repair is economical and efficient.
Two adjacent edges of the boot beam plate are respectively welded and fixed with the flange of the swing column and the beam column connecting bottom plate, so that the swing column and the beam column connecting bottom plate are integrated, and when the swing column swings, the beam column connecting bottom plate is driven to swing together. The beam-column connecting bottom plate is connected with the frame beam flange through a reset bolt and an elastic element, one end of the elastic element props against the beam-column connecting bottom plate, and the other end of the elastic element props against a locking nut. When the beam column is connected with the bottom plate and swings, automatic reset can be realized through the elastic element, the residual displacement of the structure under strong earthquake is reduced, and the earthquake resistance of the beam column node is improved.
The self-resetting full-assembly type friction energy-consumption steel frame beam column joint is connected by full bolts, full-assembly type construction is realized, the on-site construction efficiency is greatly improved, the construction time of the structure is shortened, and the construction economic benefit is improved. On the other hand, the full-bolt connection can avoid field welding operation between steel structural members, the field welding quality is often difficult to guarantee due to field and environment limitations, and the full-assembly type bolt connection can greatly improve the field construction quality of the steel structure, so that the field construction of the beam column joint with high quality can be guaranteed.
Drawings
FIG. 1 is a front view of a self-resetting fully-assembled friction energy-dissipating steel frame beam-column joint of the present invention;
FIG. 2 is a top view of a self-resetting fully-assembled friction energy-consuming steel frame beam-column joint of the present invention;
FIG. 3 is a right side view of a self-resetting fully-assembled friction energy-consuming steel frame beam-column joint of the present invention;
FIG. 4 is a cross-sectional view taken along line A-A of FIG. 1;
FIG. 5 is an enlarged view of the reset bolt and the resilient member;
fig. 6 is an open-hole view of the beam-column connecting riser of the present invention.
Detailed Description
The conception, the specific structure and the technical effects of the present invention will be further described with reference to the accompanying drawings to fully understand the objects, the features and the effects of the present invention.
Referring to fig. 1-4, the self-resetting fully-assembled friction energy-consuming steel frame beam-column joint of the present invention includes a longitudinal sway column 10, a transverse frame beam 20, a beam-column connecting vertical plate 11, a beam-column connecting bottom plate 21 and a shoe beam plate 12, wherein the cross sections of the sway column 10 and the frame beam 20 are both H-shaped, and include a middle web and flanges at two sides. The swing column 10 is in a disconnected type, the upper column section and the lower column section are respectively positioned above the upper flange and below the lower flange of the frame beam 20, a beam column connecting bottom plate 21 is arranged between the swing column 10 and the upper flange and the lower flange of the frame beam 20, one surface of the beam column connecting bottom plate 21 is tightly attached to the outer surface of the flange of the frame beam 20, and the other surface of the beam column connecting bottom plate is tightly attached to the end surface of the swing column 10. The flanges of the beam-column connecting bottom plate 21 and the frame beam 20 are provided with connecting holes for the beam-column connecting vertical plate 11 to pass through, one beam-column connecting vertical plate 11 passes through the upper connecting hole and the lower connecting hole, the middle part of the beam-column connecting vertical plate is tightly attached to the web of the frame beam 20 and fixedly connected with the web of the upper swing column 10 and the web of the lower swing column 10 through common bolts 13, and the upper part and the lower part of the beam-column connecting bottom plate are respectively connected with the web of.
Because the frame beam 20 transversely penetrates and the swinging column 10 is longitudinally segmented, when a medium-large earthquake occurs, the beam-column connecting vertical plate 11 and the frame beam 20 are still relatively fixed, the swinging column 10 generates moderate swinging due to the sliding connection of the friction type bolt 14, and the beam-column relatively moves in a friction manner to consume energy generated by the earthquake, so that the main structure is relatively kept stable in the earthquake process, and the damage to the main structure is reduced. The friction type beam column node realizes friction energy consumption of the node through smaller damage, can effectively improve the ductility of the node, reduces the damage of the node, effectively controls the internal force of a structural member, and avoids plastic damage of a main structure.
A friction plate 15 is arranged between the web contact surfaces of the beam-column connecting vertical plate 11 and the swing column 10, and the friction plate 15 is made of high-hardness steel materials, such as hard alloy steel, so that the abrasion degree caused by repeated friction is reduced. Meanwhile, the friction plate 15 can improve the stability of hysteresis energy consumption of the friction node, and simultaneously reduce the abrasion of the friction surface and the problem of mutual erosion of contact surface materials caused by long-time contact. When the beam column node is subjected to a large lateral earthquake load, slight friction damage only occurs on the friction plate 15, and the friction node can effectively limit the internal force of the beam column of the main body frame, so that the main body structure is in an elastic stage. In the repair after earthquake, if the friction plate 15 is abraded, the connection strength before the earthquake can be recovered only by replacing the friction plate 15 or replacing the loosened friction type bolt 14, and the repair is simple, quick, economical and efficient.
The boot beam plates 12 are symmetrically arranged at included angles of the flanges of the swing columns 10 and the beam column connecting bottom plate 21, and two adjacent edges of the boot beam plates 12 are respectively welded and fixed with the outer side surfaces of the flanges of the swing columns 10 and the outer surface of the beam column connecting bottom plate 21, so that the swing columns 10 and the beam column connecting bottom plate 21 are integrated. When the swinging column 10 swings back and forth and left and right due to an earthquake, the beam-column connecting bottom plate 21 is driven to slightly rotate together, the beam-column connecting bottom plate 21 rotates rigidly, and the thickness of the shoe beam plate 12 or the beam-column connecting bottom plate 21 can be adjusted, so that the shoe beam plate 12 cannot deform or be damaged due to buckling and the like when a column base rotates.
Referring to fig. 5, the joint between the flange of the frame beam 20 and the beam-column connecting bottom plate 21 is symmetrically provided with a reset bolt 22 for connecting the two, the reset bolt 22 is a common bolt, the free end of the bolt is locked by a nut 23, the bolt rod is sleeved with an elastic element 24, one end of the elastic element 24 is abutted against the beam-column connecting bottom plate 21, and the other end is abutted against the nut 23. When the beam-column connecting bottom plate 21 generates rotational displacement, the elastic element 24 can realize the automatic reset of the beam-column connecting bottom plate 21 and the swing column 10, and reduce the residual displacement of the structure under strong shock. The elastic element 24 is one or the combination of more than two of a disc spring, a spiral spring, a rubber spring and a ring spring, when the elastic element 24 is the disc spring, the disc spring with a proper elastic coefficient is selected to be linearly elastically telescopic within the working load range, namely, the load and the deformation are in a linear relation, after the external load is removed, the deformation of the disc spring can be completely recovered, no residual deformation exists, and the column foot can be completely reset.
In order to prevent the beam-column connecting vertical plate 11 from being worn during swinging, the beam-column joint is further provided with a cover plate 16, the cover plate 16 is vertically and symmetrically arranged on the outer surface of the beam-column connecting vertical plate 11 at the contact position of the beam-column connecting vertical plate 11 and a web of the swinging column 10, a friction plate 15 is also arranged between the cover plate 16 and the contact surface of the beam-column connecting vertical plate 11, and a high-strength friction type bolt 14 sequentially penetrates through the cover plate 16, the friction plate 15, the beam-column connecting vertical plate 11, the friction plate 15 and the web of the swinging column 10. Referring to fig. 6, in terms of the aperture size of the opening, the aperture of the bolt for the friction bolt 14 to pass through, which is arranged on the beam-column connecting vertical plate 11, is larger than the aperture of the bolt for the ordinary bolt 13 to pass through, so as to ensure that the friction bolt 14 has enough moving space when sliding in friction, and is not blocked, thereby effectively realizing continuous friction energy consumption.
In order to enable the contact surface of the beam-column connecting vertical plate 11 and the web plate of the frame beam 20 to be tightly attached and seamless, a cushion plate 17 is arranged between the contact surfaces of the beam-column connecting vertical plate 11 and the web plate of the frame beam 20, the thickness of the cushion plate 17 is equal to that of the friction plate 15, and a common bolt 13 sequentially penetrates through the beam-column connecting vertical plate 11, the cushion plate 17 and the web plate of the frame beam 20. The beam-column connection vertical plate 11 and the frame beam 20 are in seamless contact, so that effective transmission of force can be ensured, and the possibility that the beam-column connection vertical plate 11 is buckled and broken due to swinging rotation at two ends under strong shock is reduced. In order to enhance the firmness of the beam-column joint, the frame beam 20 is further provided with stiffening ribs 25 vertically connected with the two flanges, and the stiffening ribs 25 are arranged in a bilateral symmetry manner to prevent the plate from buckling and deforming.
The steel frame beam column node is suitable for shock absorption and shock absorption in an earthquake environment, the structure enables the beam column node to be still fixedly connected under small earthquake, the section of the column does not enter plasticity when the beam column node reaches the critical bending moment of rotation under medium and large earthquake, and the friction node can smoothly rotate when the friction node is subjected to lateral earthquake load, so that the swinging effect of the column is achieved, automatic reset is realized through the elastic element, the plastic rotation capacity of the node is effectively improved, the energy consumption capacity of the node is improved, and the major structure is prevented from generating large plastic damage due to the earthquake.
The self-resetting full-assembly type friction energy-consumption steel frame beam column joint is connected by full bolts, full-assembly type construction is realized, the on-site construction efficiency is greatly improved, the construction time of the structure is shortened, and the construction economic benefit is improved. On the other hand, the full-bolt connection can avoid field welding operation between steel structural members, the field welding quality is often difficult to guarantee due to field and environment limitations, and the full-assembly type bolt connection can greatly improve the field construction quality of the steel structure, so that the field construction of the beam column joint with high quality can be guaranteed.
The above disclosure is only an example of the present invention, but the present invention is not limited thereto, and any variations that can be made by those skilled in the art should fall within the scope of the present invention.
Claims (5)
1. The self-resetting full-assembly friction energy-consumption steel frame beam column node is characterized by comprising a swing column (10), a frame beam (20), a beam column connecting vertical plate (11), a beam column connecting bottom plate (21) and a shoe beam plate (12), wherein the cross sections of the swing column (10) and the frame beam (20) are H-shaped and comprise a middle web plate and flanges at two sides, the swing column (10) is disconnected, the two sections are respectively positioned above and below the frame beam (20), the beam column connecting bottom plate (21) is arranged between the swing column (10) and the flange of the frame beam (20), one surface of the beam column connecting bottom plate (21) is tightly attached to the outer surface of the flange of the frame beam (20), and the other surface of the beam column connecting bottom plate is tightly attached to the end surface of the swing column (10);
the beam-column connecting bottom plate (21) and the flange of the frame beam (20) are provided with connecting holes for a beam-column connecting vertical plate (11) to penetrate through, the beam-column connecting vertical plate (11) vertically penetrates through the connecting holes, the middle part of the beam-column connecting bottom plate is fixedly connected with the web of the frame beam (20) through a common bolt (13), the upper part and the lower part of the beam-column connecting bottom plate are slidably connected with the web of the swinging column (10) through friction type bolts (14), and a friction plate (15) is arranged between the beam-column connecting vertical plate (11) and the web contact surface of the swinging column (10);
the boots are characterized in that the boot beam plates (12) are symmetrically arranged at the included angle between the flange of the swing column (10) and the beam column connecting bottom plate (21), two adjacent edges of the boot beam plates (12) are respectively welded and fixed with the outer side surface of the flange of the swing column (10) and the outer surface of the beam column connecting bottom plate (21), reset bolts (22) used for connecting the flange of the frame beam (20) and the beam column connecting bottom plate (21) are symmetrically arranged at the joint of the flange of the frame beam (20) and the beam column connecting bottom plate (21), the free ends of the reset bolts (22) are locked by nuts (23), elastic elements (24) are sleeved outside bolt rods, one ends of the elastic elements (24) abut against the beam column connecting bottom plate (21), and;
still include apron (16), apron (16) longitudinal symmetry sets up in the beam column of beam column connection riser (11) and the web contact department who sways post (10) and connects riser (11) surface, also be equipped with friction plate (15) between the contact surface of apron (16) and beam column connection riser (11), friction plate (15) are the carbide steel sheet, the bolt aperture that confession friction type bolt (14) seted up on beam column connection riser (11) passed is greater than the bolt aperture that supplies ordinary bolt (13) to pass, and the hole is the circular port.
2. The self-resetting fully-assembled friction energy-consuming steel frame beam-column joint according to claim 1, further comprising a backing plate (17) arranged between the beam-column connecting riser (11) and the web contact surface of the frame beam (20), wherein the thickness of the backing plate (17) is equal to that of the friction plate (15).
3. The self-resetting fully-assembled friction energy-consuming steel frame beam-column joint according to claim 1, further comprising stiffening ribs (25) vertically connecting two flanges of the frame beam (20), wherein the stiffening ribs (25) are arranged in bilateral symmetry.
4. The self-resetting fully-assembled friction energy-dissipating steel frame beam-column node according to claim 1, wherein the elastic element (24) is a disc spring or a coil spring or a rubber spring or a ring spring or a combination thereof.
5. The self-resetting fully fabricated friction energy dissipating steel frame beam column node of claim 4, wherein when the resilient member (24) is a disc spring, the disc spring is linearly elastically stretchable over a range of operating loads.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910523375.9A CN110306663B (en) | 2019-06-17 | 2019-06-17 | Self-resetting full-assembly type friction energy-consumption steel frame beam-column joint |
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| CN201910523375.9A CN110306663B (en) | 2019-06-17 | 2019-06-17 | Self-resetting full-assembly type friction energy-consumption steel frame beam-column joint |
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| CN110306663B true CN110306663B (en) | 2020-10-13 |
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| CN111691734B (en) * | 2020-05-08 | 2022-11-25 | 海南大学 | Assembled is from restoring to throne tower structure |
| CN112096158B (en) * | 2020-09-15 | 2024-06-25 | 重庆大学 | Assembled self-resetting beam column joint and construction method thereof |
| CN112627340B (en) * | 2020-12-21 | 2022-04-08 | 同济大学 | Novel friction connection supports multiple post steel frame construction system that sways |
| CN218541648U (en) * | 2022-07-27 | 2023-02-28 | 山东大学 | Anti-seismic reinforcing device of frame structure |
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2019
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| JP2006138392A (en) * | 2004-11-11 | 2006-06-01 | Kobe Steel Ltd | Plate material joining method and joining structure |
| CN202324201U (en) * | 2011-11-15 | 2012-07-11 | 福州大学 | Chambering structural steel structure beam column node connected by end plate |
| CN107386438A (en) * | 2017-06-23 | 2017-11-24 | 东南大学 | Edge of a wing friction-type shape-memory alloy rod Self-resetting steel-frame beam side column node |
| CN107514057A (en) * | 2017-07-10 | 2017-12-26 | 湖南大学 | A kind of angle steel channel-section steel connects energy-dissipation beam column node |
| CN207160226U (en) * | 2017-09-22 | 2018-03-30 | 淮海工学院 | A kind of steel concrete combined joint of concrete frame |
| CN108316472A (en) * | 2018-01-04 | 2018-07-24 | 同济大学 | Self-resetting beam column shock-resistant node based on carbon fiber disc spring |
| CN108560706A (en) * | 2018-06-20 | 2018-09-21 | 中国矿业大学 | A kind of friction energy-dissipating Self-resetting fully assembled joint |
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