CN113338436B - Reinforced concrete beam column energy-consuming connection and construction method thereof - Google Patents
Reinforced concrete beam column energy-consuming connection and construction method thereof Download PDFInfo
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- CN113338436B CN113338436B CN202110430841.6A CN202110430841A CN113338436B CN 113338436 B CN113338436 B CN 113338436B CN 202110430841 A CN202110430841 A CN 202110430841A CN 113338436 B CN113338436 B CN 113338436B
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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
- 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
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/92—Protection against other undesired influences or dangers
- E04B1/98—Protection against other undesired influences or dangers against vibrations or shocks; against mechanical destruction, e.g. by air-raids
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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
- 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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Abstract
The invention provides reinforced concrete beam column energy-consuming connection and a construction method thereof, wherein the reinforced concrete beam column energy-consuming connection comprises a prefabricated column, a prefabricated beam and an energy-consuming connection component for connecting the prefabricated column and the prefabricated beam; the side wall of the precast column close to the precast beam is provided with horizontally-transverse column-side H-shaped steel; the end part of the precast beam close to the precast column is provided with beam end H-shaped steel which is horizontally placed; the energy-consuming connecting assembly comprises: the steel end plates and the web end plates are sequentially and symmetrically arranged along the direction of the free ends of the column side H-shaped steel and the beam end H-shaped steel, the web connecting the two web end plates, and the core plates are symmetrically arranged on the upper flange and the lower flange of the column side H-shaped steel and the beam end H-shaped steel; the web comprises two outer connecting plates at the outer side and an inner connecting plate at the inner side; the precast beam and the beam end H-shaped steel are connected and then anchored in concrete. The invention dissipates a large amount of energy at the joint, reduces the energy transfer to the node core area and the column, reduces the damage and ensures the safety of the whole structure.
Description
Technical Field
The invention belongs to the field of buildings, and particularly relates to reinforced concrete beam-column energy-consuming connection and a construction method thereof.
Background
The part of the steel structure beam-column combination is called a beam-column node or beam-column connection, and plays an important role in the structure. Under normal use state, the steel structure beam column node is with roof beam and post even whole, makes the structure can bear external loads such as gravity, wind load effectively. Under the action of strong earthquake, the beam end and the node area generate plastic deformation to form a plastic hinge, so that energy is effectively absorbed and dissipated, and the structure can be maintained under the conditions of large earthquake and small earthquake. The mechanical properties of the connection nodes also affect the overall behavior of the structure, such as structural deformation, natural vibration period, seismic response and structural internal forces.
However, the existing structure is insufficient in earthquake energy consumption and cannot realize graded energy consumption, the core area and the columns of the node are greatly damaged in the earthquake, and the overall safety of the structure is deficient.
Disclosure of Invention
In view of the above-mentioned drawbacks and deficiencies of the prior art, the present invention is directed to a reinforced concrete beam-column energy-consuming connection and a construction method thereof.
In order to achieve the above purpose, the embodiment of the invention adopts the following technical scheme:
in a first aspect, the reinforced concrete beam-column energy-consuming connection comprises a prefabricated column, a prefabricated beam and an energy-consuming connection assembly for connecting the prefabricated column and the prefabricated beam; the side wall of the precast column close to the precast beam is provided with horizontally-transverse column-side H-shaped steel; the end part of the precast beam close to the precast column is provided with beam end H-shaped steel which is horizontally placed; the energy-consuming connecting assembly comprises: the steel end plates and the web end plates are sequentially and symmetrically arranged along the direction of the free ends of the column side H-shaped steel and the beam end H-shaped steel, the web connecting the two web end plates, and the core plates are symmetrically arranged on the upper flange and the lower flange of the column side H-shaped steel and the beam end H-shaped steel; the web comprises two outer connecting plates on the outer side and an inner connecting plate on the inner side.
According to the technical scheme provided by the embodiment of the application, the H-shaped steel at the column side is connected with the embedded part of the prefabricated column, and the flange of the H-shaped steel at the beam end is connected with the longitudinal rib of the prefabricated beam.
According to the technical scheme that this application embodiment provided, power consumption coupling assembling still includes the about board, and about board sets up at nuclear core plate longitudinal symmetry, is close to web one side for first about board, keeps away from web one side for the about board of second.
According to the technical scheme provided by the embodiment of the application, the length of the restraint plate is smaller than that of the web plate, and the height of the web plate end plate is smaller than that of the section steel end plate.
According to the technical scheme that this application embodiment provided, between about board and the nuclear core plate, between nuclear core plate and post side shaped steel and beam-ends shaped steel, pass through bolted connection between shaped steel end plate and the web end plate.
According to the technical scheme that this application embodiment provided, a plurality of weakening holes have been seted up on the nuclear core plate.
According to the technical scheme that this application embodiment provided, the edge of nuclear core plate is equipped with a plurality of arc openings.
According to the technical scheme that this application embodiment provided, the arc opening part is equipped with the infill panel that corresponds with the arc opening.
According to the technical scheme provided by the embodiment of the application, the inner connecting plate is provided with openings in the up-and-down symmetrical mode.
In a second aspect, a construction method based on the reinforced concrete beam-column energy-consuming connection comprises the following steps:
s1, finishing the processing and manufacturing of a prefabricated column with a column side H-shaped steel and a section steel end plate in a prefabrication factory, and finishing the processing and manufacturing of a prefabricated beam with a beam end H-shaped steel and a section steel end plate;
s2, after the processing is finished, manufacturing a web plate end plate, an outer connecting plate and an inner connecting plate, and connecting the web plate end plate, the outer connecting plate and the inner connecting plate by bolts on site to form a whole;
s3, after the manufacturing is finished, manufacturing a restraint board, a core board and a filling board;
and S4, after the manufacturing is finished, flange connection of the column side H-shaped steel and the beam end H-shaped steel is carried out on site, and the energy consumption connecting assembly is installed between the column side H-shaped steel and the beam end H-shaped steel.
The invention has the following beneficial effects:
the flanges of the H-shaped steel connected to two ends are connected with the core plate through flanges, the outer constraint plate is used for connecting the flanges of the H-shaped steel, the webs of the H-shaped steel at two ends are connected with the end plate, the steel connecting plate which is not weakened on the outer side and the core steel connecting plate which is weakened inside, the flange connecting core plate consumes energy through stage-by-stage tension and compression yielding under the action of earthquake, the core steel plate which is weakened inside and connected with the webs consumes energy through shearing yielding, the stage-by-stage energy consumption is realized, a large amount of energy is dissipated at the connecting part, the energy is reduced from being transmitted to the core area and the column of the node, the damage of the core area and the column of the node in earthquake is reduced, and the integral safety of the structure is ensured.
Drawings
Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments made with reference to the following drawings:
fig. 1 is a schematic perspective view of a beam-column connection system according to an embodiment of the present invention;
fig. 2 is a schematic front view of a beam-column connection system according to an embodiment of the present invention;
fig. 3 is a schematic structural view of a constraining board and a core board according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a core board according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a core board according to an embodiment of the present invention;
fig. 6 is a schematic view of an interconnect board according to an embodiment of the invention.
Reference numerals are as follows:
1. prefabricating a column; 2. prefabricating a beam; 3. column side H-shaped steel; 4. beam-end H-section steel; 5. a restraint plate; 51. a first restraint plate; 52. a second restraint plate; 6. a core board; 61. a weakened hole; 62. an arc-shaped opening; 621. a short arc-shaped opening; 622. a long arc-shaped opening; 7. a infill panel; 71. a first infill panel; 72. a second infill panel; 8. a web; 9. a bolt; 10. a section steel end plate; 11. a web end plate; 12. an outer connecting plate; 13. an inner connection plate; 131. and (4) opening.
Detailed Description
The present invention will be described in further detail with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the relevant invention and not restrictive of the invention. It should be noted that, for convenience of description, only the portions related to the present invention are shown in the drawings.
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
Example one
A reinforced concrete beam-column energy-consuming connection, as shown in fig. 1 to 2, comprising a precast column 1, a precast beam 2, and an energy-consuming connection assembly for connecting the precast column 1 and the precast beam 2; the side wall of the precast column 1 close to the precast beam 2 is provided with horizontally-placed column-side H-shaped steel 3; the end part of the precast beam 2 close to the precast column 1 is provided with a beam end H-shaped steel 4 which is horizontally placed; the energy consuming connection assembly comprises: the steel end plates 10 and the web end plates 11 are sequentially and symmetrically arranged along the direction that the free ends of the column side H-shaped steel 3 and the beam end H-shaped steel 4 are close to each other, the web 8 connecting the two web end plates 11 is arranged, and the core plates 6 are symmetrically arranged on the upper and lower flanges of the column side H-shaped steel 3 and the beam end H-shaped steel 4; the web 8 comprises two outer connecting plates 12 on the outside and an inner connecting plate 13 on the inside.
Specifically, the column-side H-section steel 3 and the beam-end H-section steel 4 are used to transmit bending moment and shearing force. The end plates 10 and 11 of the section steel are used for connecting the web plates of the section steel to transfer shearing force. The core plate 6 is used for transferring bending moment, yielding under the action of the bending moment, dissipating earthquake energy and ensuring the safety of the whole structure. The outer connecting plate 12 is an undamped steel connecting plate and is used for connecting a section steel web plate to transfer shear force; the inner connecting plate 13 is used for connecting the section steel web plates to transfer shearing force, and shearing yield energy consumption is generated under the action of earthquake.
In a specific embodiment of the invention, the column-side H-shaped steel 3 is connected with the embedded steel connecting piece of the precast column 1, and the flange of the beam-end H-shaped steel 4 is connected with the longitudinal rib of the precast beam 2.
Specifically, the column side H-shaped steel 3 is welded with the embedded steel connecting piece of the prefabricated column 1, the beam end H-shaped steel 4 is directly anchored in the concrete beam, and the longitudinal ribs of the prefabricated beam 2 are welded at the flange of the beam end H-shaped steel 4. The connection between concrete and steel bars is enhanced to make the building more firm, and the steel bars and the concrete work together to bear the pressure, the tensile force, the bending moment, the torque and the like generated by various loads.
In an embodiment of the present invention, the energy consumption connection assembly further includes constraining plates 5, where the constraining plates 5 are symmetrically disposed above and below the core plate 6, and a first constraining plate 51 is disposed on a side close to the web 8, and a second constraining plate 52 is disposed on a side far from the web 8.
Specifically, the two constraining plates 5 sandwich the core plate 6, on the one hand, constrain the core plate 6, and on the other hand, prevent the core plate 6 from buckling when pressed.
In one embodiment of the invention, the length of the restraint plate 5 is less than the length of the web 8, and the height of the web end plate 11 is less than the height of the section steel end plate 10.
Specifically, the length of the restraint plate 5 is smaller than that of the web plate 8, so that the core plate 6 is connected with the upper flange and the lower flange of the column-side H-shaped steel 3 and the beam-end H-shaped steel 4. Meanwhile, the height of the web end plate 11 is smaller than that of the section steel end plate 10, so that a space is reserved for the second restraint plate 52.
In one embodiment of the invention, the connection between the constraining plate 5 and the core plate 6, between the core plate 6 and the column-side section steel 3 and the beam-end section steel 4, and between the section steel end plate 10 and the web end plate 11 is made by bolts 9.
In a specific embodiment of the present invention, bolt holes are disposed at corresponding positions of the constraining plate 5 and the core plate 6, so that the constraining plate and the core plate can be conveniently fixed by bolts. The edge of a wing, beam-ends shaped steel 4 about the edge of a wing about nuclear core plate 6, the 3 of post side shaped steel, the three corresponds the position and is equipped with the bolt hole, makes things convenient for nuclear core plate 6 and post side shaped steel 3, nuclear core plate 6 and beam-ends shaped steel 4 to carry out bolt fixed connection. The corresponding positions of the section steel end plate 10 and the web plate end plate 11 are provided with bolt holes, so that the two can be conveniently and fixedly connected by bolts.
In an embodiment of the present invention, the core board 6 is provided with a plurality of weakening holes 61.
Specifically, the weakening holes 61 increase the degree of weakening of the core plate. Optionally, the weakened holes 61 are strip holes.
In one embodiment of the present invention, the edge of the core board 6 is provided with a plurality of arc-shaped openings 62. The arc-shaped opening is used for weakening the core plate.
In one embodiment of the invention, the weakening holes 61 and the arc-shaped openings 62 together weaken the core plate 6, as shown in fig. 3. Specifically, when an earthquake occurs, the inner connecting plates 13 yield first, then the weakening holes 61 yield in parallel, and finally the outer connecting plates 12 yield, so that graded yield energy consumption is realized.
In a preferred embodiment of the present invention, as shown in fig. 4, the edge of the core board 6 is symmetrically provided with a short arc opening 621 and a long arc opening 622. The short arc-shaped opening 621 corresponds to the weakening hole 61 in position and has the same opening radian. In this embodiment, the weakened holes 61 yield at their parallel locations and then at the long arcuate openings 622 under seismic action. That is, the long arcuate opening 622, the short arcuate opening 621 plus the weakened hole 61 form two degrees of weakening that yield in stages. The short arcuate opening 621 plus the weakened segment of weakened hole 61 weakens to a greater extent, yielding first when pulled or compressed, and after yielding for a certain length, the middle four holes resist further elongation or compression of this segment due to the bolts passing through, this segment yielding stops, and the long arcuate weakened segment begins to yield.
In an embodiment of the present invention, the arc-shaped opening 62 is provided with a filling plate 7 corresponding to the arc-shaped opening. The filling plate 7 is used to fill the gap portion.
In one embodiment of the present invention, as shown in fig. 5, the packing plate 7 is coupled to the restraining plate 5 by bolts. It can be understood that the corresponding positions of the restriction plate 5 and the filling plate 7 are provided with bolt holes to facilitate the connection of the two.
In an embodiment of the present invention, the inner connecting plate 13 is provided with openings 131 symmetrically at the top and bottom.
Specifically, as shown in fig. 6, the opening 131 weakens the cross section so that the inner connection plate 13 may enter a yielding state when being sheared, thereby consuming energy.
In a preferred embodiment of the present invention, as shown in fig. 1, two short arc-shaped openings 621 and a long arc-shaped opening 622 are symmetrically disposed on an edge of the core board 6, two weakening holes 61 are disposed on the core board 6, and the two weakening holes 61 are located in a position parallel to the two short arc-shaped openings 621. In this embodiment, under the action of earthquake, the inner connecting plate 13 firstly yields, then yields at the parallel position of the weakening holes 61, then yields at the weakening part at the long arc-shaped opening 622, and finally yields at the outer connecting plate, so that graded yield energy consumption is realized.
Example two
The reinforced concrete beam column energy-consuming connection construction method based on the first embodiment comprises the following steps:
s1, finishing the processing and manufacturing of a prefabricated column 1 with a column side H-shaped steel 3 and a section steel end plate 10 in a prefabrication factory, and finishing the processing and manufacturing of a prefabricated beam 2 with a beam end H-shaped steel 4 and a section steel end plate 10;
s2, after the processing is finished, manufacturing a web plate end plate 11, an outer connecting plate 12 and an inner connecting plate 13, and connecting the web plate end plate, the outer connecting plate and the inner connecting plate through bolts on site to form a whole;
s3, after the manufacturing is finished, manufacturing a restraint plate 5, a core plate 6 and a filling plate 7;
and S4, after the manufacturing is finished, flange connection of the column side H-shaped steel 3 and the beam end H-shaped steel 4 is carried out on site, and the energy consumption connecting assembly is installed between the column side H-shaped steel 3 and the beam end H-shaped steel 4.
Specifically, in step S1 of this embodiment, the work of binding the reinforcing bars of the precast columns 1 and the precast beams 2 and pouring concrete is performed, and the connection of the column-side H-section steel 3 and the anchor of the precast column 1, and the anchoring of the precast beams 2 and the beam-end H-section steel 4 are completed before pouring. And (5) finishing the processing and manufacturing of the components in the step (S2) and the step (S3) while maintaining the beam column. And (5) after the maintenance is finished, welding the end plate of the section steel and the end part of the H-shaped steel, and then performing step S4, wherein in the step S4, the connection between the flange part of the section steel and the web plate is performed. Connect strait board and nuclear core plate, connect nuclear core plate and shaped steel, connect shaped steel end plate and web end plate, install the inner connecting plate additional, install the outer junction plate additional, form reinforced concrete beam column power consumption and connect.
The foregoing description is only exemplary of the preferred embodiments of the invention and is illustrative of the principles of the technology employed. It will be appreciated by those skilled in the art that the scope of the invention herein disclosed is not limited to the particular combination of features described above, but also encompasses other arrangements formed by any combination of the above features or their equivalents without departing from the spirit of the invention. For example, the above features and (but not limited to) features having similar functions disclosed in the present invention are mutually replaced to form the technical solution.
Claims (2)
1. The reinforced concrete beam column energy-consuming connection is characterized by comprising a prefabricated column (1), a prefabricated beam (2) and an energy-consuming connection assembly for connecting the prefabricated column (1) and the prefabricated beam (2);
the side wall of the precast column (1) close to the precast beam (2) is provided with horizontally transverse column side H-shaped steel (3); the end part of the precast beam (2) close to the precast column (1) is provided with beam end H-shaped steel (4) which is horizontally placed;
the energy-consuming connecting assembly comprises: the beam end H-shaped steel structure comprises section steel end plates (10) and web end plates (11) which are symmetrically arranged in sequence along the direction that the free ends of the column side H-shaped steel (3) and the beam end H-shaped steel (4) are close to, webs (8) which are connected with the two web end plates (11), and core plates (6) which are symmetrically arranged on the upper flange and the lower flange of the column side H-shaped steel (3) and the beam end H-shaped steel (4);
the web (8) comprises two outer connecting plates (12) at the outer side and an inner connecting plate (13) at the inner side;
the column side H-shaped steel (3) is connected with an embedded part of the precast column (1), and the flange of the beam end H-shaped steel (4) is connected with the longitudinal rib of the precast beam (2);
the energy consumption connecting assembly further comprises constraining plates (5), the constraining plates (5) are arranged on the core plate (6) in an up-down symmetrical mode, one side close to the web plate (8) is provided with a first constraining plate (51), and one side far away from the web plate (8) is provided with a second constraining plate (52);
the restraint plate (5) and the core plate (6), the column-side section steel (3) and the beam-end section steel (4), and the section steel end plate (10) and the web plate end plate (11) are connected through bolts (9); the length of the restraint plate (5) is less than that of the web plate (8), and the height of the web plate end plate (11) is less than that of the section steel end plate (10);
the core plate (6) is provided with a plurality of weakening holes (61); the edge of the core plate (6) is provided with a plurality of arc-shaped openings (62); the edge of the core plate (6) is symmetrically provided with a short arc-shaped opening (621) and a long arc-shaped opening (622); the short arc-shaped opening 621 corresponds to the weakening hole 61;
a filling plate (7) corresponding to the arc-shaped opening is arranged at the arc-shaped opening (62); the inner connecting plate (13) is provided with openings (131) in an up-and-down symmetrical manner;
under the action of earthquake, the inner connecting plate (13) firstly yields, then yields at the parallel position of the weakening holes (61), then yields at the weakening part at the long arc-shaped opening (622), and finally yields at the outer connecting plate, so that graded yield energy consumption is realized.
2. The reinforced concrete beam column energy-consuming connection construction method based on claim 1 is characterized by comprising the following steps of:
s1, finishing machining and manufacturing of a prefabricated column (1) with a column side H-shaped steel (3) and a section steel end plate (10) in a prefabricating factory, and finishing machining and manufacturing of a prefabricated beam (2) with a beam end H-shaped steel (4) and a section steel end plate (10);
s2, after the processing is finished, manufacturing a web plate end plate (11), an outer connecting plate (12) and an inner connecting plate (13), and connecting the web plate end plate, the outer connecting plate and the inner connecting plate by bolts on site to form a whole;
s3, after the manufacturing is finished, manufacturing a restraint plate (5), a core plate (6) and a filling plate (7);
and S4, after the manufacturing is finished, the flange connection of the column side H-shaped steel (3) and the beam end H-shaped steel (4) is carried out on site, and the energy-consumption connecting assembly is installed between the column side H-shaped steel (3) and the beam end H-shaped steel (4).
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| CN202110430841.6A CN113338436B (en) | 2021-04-21 | 2021-04-21 | Reinforced concrete beam column energy-consuming connection and construction method thereof |
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| CN202110430841.6A CN113338436B (en) | 2021-04-21 | 2021-04-21 | Reinforced concrete beam column energy-consuming connection and construction method thereof |
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| CN110185139B (en) * | 2019-05-27 | 2024-05-17 | 广西建筑材料科学研究设计院有限公司 | Full section connection box device of precast concrete beam column of spacing auto-lock, unblock and reinforcing bar connection |
| CN110185140B (en) * | 2019-05-27 | 2024-05-14 | 广西建筑材料科学研究设计院有限公司 | Full section connection box device for butt joint of precast concrete columns with limiting self-locking, unlocking and steel bar connection |
| CN114541574B (en) * | 2022-02-21 | 2023-09-22 | 青岛理工大学 | Assembled steel-concrete combined node with metal damper and installation method thereof |
| CN114508174B (en) * | 2022-02-23 | 2023-04-11 | 福建工程学院 | Can replace assembled beam column node of artifical hinge |
| CN114753488A (en) * | 2022-04-15 | 2022-07-15 | 扬州大学 | Assembled beam column node that contains compound power consumption subassembly |
| CN115653084A (en) * | 2022-10-25 | 2023-01-31 | 四川大学 | Recoverable precast concrete frame structure system |
| CN115748960A (en) * | 2022-10-25 | 2023-03-07 | 四川大学 | Beam end replaceable energy consumption device of beam-column joint |
| CN115653094A (en) * | 2022-10-25 | 2023-01-31 | 四川大学 | Detachable and replaceable precast concrete beam column joint and preparation method thereof |
| CN115653085A (en) * | 2022-10-25 | 2023-01-31 | 四川大学 | Detachable assembly type concrete frame structure system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN201068603Y (en) * | 2007-07-31 | 2008-06-04 | 北京工业大学 | Joist end weakened replaced type steel frame beam-column anti-knock joint |
| CN205917903U (en) * | 2016-02-01 | 2017-02-01 | 中国地震局工程力学研究所 | Removable beam column node earthquake damage controlling means |
| CN105780960A (en) * | 2016-04-27 | 2016-07-20 | 福建工程学院 | Fully-prefabricated assembled concrete column-concrete beam buckling-restrained energy-consuming joint |
| CN105839776B (en) * | 2016-05-19 | 2019-03-29 | 山东大学 | Buckling-restrained formula beam-column end plate connecting node and steel building |
| CN207160238U (en) * | 2017-02-24 | 2018-03-30 | 新世界中国地产有限公司 | Prefabricated construction system |
| CN207812686U (en) * | 2018-01-11 | 2018-09-04 | 山东大学 | Unilateral buckling-restrained formula concrete column-steel beam connecting node |
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