CN111535444A - Fiber reinforced concrete beam column joint and manufacturing method thereof - Google Patents

Fiber reinforced concrete beam column joint and manufacturing method thereof Download PDF

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Publication number
CN111535444A
CN111535444A CN202010415661.6A CN202010415661A CN111535444A CN 111535444 A CN111535444 A CN 111535444A CN 202010415661 A CN202010415661 A CN 202010415661A CN 111535444 A CN111535444 A CN 111535444A
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China
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column
concrete
stirrups
longitudinal
wall
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CN202010415661.6A
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王英俊
朱叶
尚世宇
张成兴
王俊
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Xuchang University
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Xuchang University
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Priority to CN202010415661.6A priority Critical patent/CN111535444A/en
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    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/18Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
    • E04B1/20Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of concrete, e.g. reinforced concrete, or other stonelike material
    • E04B1/21Connections specially adapted therefor
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/16Structures made from masses, e.g. of concrete, cast or similarly formed in situ with or without making use of additional elements, such as permanent forms, substructures to be coated with load-bearing material
    • E04B1/165Structures made from masses, e.g. of concrete, cast or similarly formed in situ with or without making use of additional elements, such as permanent forms, substructures to be coated with load-bearing material with elongated load-supporting parts, cast in situ

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Reinforcement Elements For Buildings (AREA)
  • Rod-Shaped Construction Members (AREA)

Abstract

The invention discloses a fiber reinforced concrete beam column node and a manufacturing method thereof, which comprises column longitudinal steel bars, column stirrups, node core area stirrups, beam longitudinal steel bars, a reinforcement beam hoop, a high-performance concrete column, a common concrete column, a chute, a screw rod, a threaded sleeve, a connecting lug block, a slide block, a threaded hole, a rotating shaft, a telescopic rod and a spring, wherein the column stirrups are distributed and welded on the outer wall between the column longitudinal steel bars, the node core area stirrups are welded and fixed on the outer wall of the middle part between the column longitudinal steel bars, and the beam longitudinal steel bars are sleeved and fixed on the inner wall of one side of the column longitudinal steel bars. Reduce the damage, increase the life of beam column node.

Description

Fiber reinforced concrete beam column joint and manufacturing method thereof
Technical Field
The invention relates to the technical field of concrete beam-column joints, in particular to a fiber reinforced concrete beam-column joint and a manufacturing method thereof.
Background
The Reinforced Concrete (RC) frame structure has the advantages of convenient space separation, light dead weight, flexible building plane arrangement and the like, is widely applied to public buildings such as office buildings, hospitals, teaching buildings and the like for multiple and high floors bearing important social functions, is easy to cause a large amount of casualties once collapsed, is a high-performance material, has the characteristics of good tensile strain hardening performance, multiple and dense cracks developing and the like, has the uniaxial tensile strain of 3 percent, and has a quasi-strain hardening phenomenon during stretching; the FRC and the steel bars have good capability of coordinating deformation, and the bonding slippage is small; the research shows that: the FRC is used for expected damage parts such as a beam-end plastic hinge area, a column-end plastic hinge area, a node core area and the like of the frame structure, the anti-seismic performance of the RC frame structure can be obviously improved, the RC frame structure can be recovered for use without or with little repair after strong shock, and the functions of a social main body are not interrupted; the FRC is used for expected damage parts such as beam ends, column end plastic hinge areas, node core areas and the like of beam-column nodes of the frame structure, and the other parts adopt common/high-strength concrete to form the FRC beam-column nodes; therefore, an effective design scheme that the member is easy to implement in engineering needs to be found, but the existing common concrete has low tensile strength, and more shear resistant stirrups need to be configured to meet the tensile performance of the node, so that the node steel bars are crowded, the construction is inconvenient, and the construction quality is influenced; the higher the strength of common concrete is, the greater the brittleness is, and the ductility is smaller after the node reaches the limit; after earthquake, the concrete in the core area of the node is seriously peeled off, the repairing cost is higher, and a reinforcing device is not added, so that the acting force directly acts on the node of the concrete beam column, and the node is easily damaged.
Disclosure of Invention
The invention aims to provide a fiber reinforced concrete beam-column joint and a manufacturing method thereof, which aim to solve the problems in the background technology.
In order to solve the technical problems, the invention provides the following technical scheme: a fiber reinforced concrete beam column node comprises column longitudinal steel bars, column stirrups, node core area stirrups, beam longitudinal steel bars, rib beam hoops, a high-performance concrete column, a common concrete column, a sliding chute, a screw rod, a threaded sleeve, a connecting lug block, a sliding block, a threaded hole, a rotating shaft, a telescopic rod and a spring, wherein the column stirrups are fixedly distributed on the outer wall between the column longitudinal steel bars in a distributed welding mode, the node core area stirrups are fixedly welded on the outer wall of the middle portion between the column longitudinal steel bars, the beam longitudinal steel bars are fixedly sleeved on the inner wall of one side of the column longitudinal steel bars, the rib beam hoops are fixedly distributed on the outer wall of one side of the beam longitudinal steel bars in a distributed welding mode, the high-performance concrete column is cast and connected on the inner wall of the middle portion between the column longitudinal steel bars and the beam longitudinal steel bars, the common concrete column is cast and connected on the inner wall, the utility model discloses a high performance concrete column, including the high performance concrete column, the bottom outer wall of connecting ear piece is connected with the slider, correspond the slider on the high performance concrete column and the ordinary concrete column one side outer wall and seted up the spout, it is connected with the screw rod to rotate on one side inner wall of spout, correspond the screw rod on one side inner wall of slider and seted up threaded hole, threaded connection has the threaded sleeve on the outer wall that the screw rod is located slider one side, install the telescopic link on the inner wall between the connecting ear piece, it is connected with the pivot to rotate on one side inner wall of connecting ear piece, and the one end of pivot runs through on the inner wall of telescopic link, welded fastening has the spring on the outer wall between the connecting ear piece, and the spring cup joints on one side outer wall of.
A manufacturing method of a fiber reinforced concrete beam column node comprises the following steps of firstly, configuring a longitudinal column; step two, configuring nodes; step three, configuring stirrups; step four, configuring a longitudinal beam; step five, pouring concrete; step six, pouring concrete again; seventhly, removing the mold and maintaining;
in the first step, the longitudinal steel bars of the central column of the beam column node are bundled by iron wires, so that the four longitudinal steel bars of the column and the iron wires are enclosed into a cuboid, and then the cuboid is placed on the ground for later use;
welding stirrups in the core area of the four nodes to the center of the bundled column longitudinal steel bars by resistance spot welding to fix and position the stirrups;
binding two column stirrups at each position of the inner side of the column longitudinal steel bar, cross-binding the two column stirrups to support the two column stirrups, binding the two column stirrups at a certain distance, and welding the two column stirrups on the column longitudinal steel bar by resistance spot welding;
placing six longitudinal beam reinforcements in a rectangular shape, bundling the longitudinal beam reinforcements on the inner side of the middle part of the longitudinal column reinforcement, welding by resistance spot welding, bundling each longitudinal beam reinforcement by five reinforcement beam hoops to realize fixation, welding by resistance spot welding, surrounding a beam-supporting column joint template on the outer sides of the bundled longitudinal column reinforcements and longitudinal beam reinforcements, and adding a leakage-preventing material at a template gap to prevent concrete leakage;
in the fifth step, two partition plates are placed inside the bundled column longitudinal steel bars, and the partition plates are h away from the beam longitudinal steel bars respectivelycAnd (3) placing two partition plates in the bundled beam longitudinal steel bars, wherein the distribution distances of the partition plates from the column longitudinal steel bars are hbRice, pouring the prepared ductile high-performance concrete into the beam column node template and the partition plate, and standing for-hours to perform initial setting to form a high-performance concrete column;
in the sixth step, after the ductile high-performance concrete is initially set, the four partition plates are taken out, then are distributed and placed at the tail ends of the bundled column longitudinal steel bars and beam longitudinal steel bars for blocking, then the ordinary concrete is placed into the beam-column supporting node template and the partition plates, then the ordinary concrete and the ductile high-performance concrete are placed for one hour, and the ordinary concrete column and the high-performance concrete column are finally set;
and seventhly, after the common concrete column and the high-performance concrete column are solidified, taking out the beam column node template and the partition plate, placing the beam column node template and the partition plate at a specified position for storage, recording, and performing periodic maintenance.
According to the technical scheme, the bearing is installed at the rotating connection position of the rotating shaft and the connecting lug.
According to the technical scheme, the number of the telescopic rods and the number of the springs are four.
According to the technical scheme, the ductile high-performance concrete is prepared from a cement matrix and PVA (polyvinyl alcohol) fibers, wherein part of cement clinker is replaced by industrial waste fly ash.
According to the technical scheme, the stirrups in the core area of the beam-column joint are configured according to the minimum requirement of the specification.
According to the technical scheme, the beam-column joint core area, the beam-end and column-end double beam section height and column section height range nearby are poured by using the ductile high-performance concrete, and the rest parts are all poured by using the common concrete.
According to the technical scheme, the bearing is installed at the rotating connection position of the sliding chute and the screw rod.
Compared with the prior art, the invention has the following beneficial effects: according to the invention, the FRC is adopted, so that the using amount of the shear resistant stirrups at the nodes can be reduced, and steel is saved; the stirrups do not need to be additionally configured in the node core area, so that steel is saved, and the construction difficulty is reduced; compared with a node of a ductile high-performance concrete beam column, the node has light dead weight and good shear resistance, and a protective layer cannot be peeled off when the core area of the node is damaged, so that the repairing cost after a strong earthquake is reduced or even eliminated; local material resources and industrial waste materials in China are fully utilized, and a reinforcing device is adopted, so that acting force is prevented from directly acting on the node, damage is reduced, and the service life of the beam column node is prolonged.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a front view cut-away schematic view of the present invention;
FIG. 2 is a schematic view of the present invention taken at A-A;
FIG. 3 is a schematic view of the present invention taken at B-B;
FIG. 4 is an enlarged view of the structure of the area A in FIG. 1 according to the present invention;
FIG. 5 is a flow chart of a method of making the present invention;
in the figure: 1. column longitudinal steel bars; 2. a column stirrup; 3. hooping in a node core area; 4. longitudinal reinforcing steel bars of the beam; 5. a rib beam hoop; 6. a high performance concrete column; 7. a common concrete column; 8. a chute; 9. a screw; 10. a threaded sleeve; 11. connecting the ear blocks; 12. a slider; 13. a threaded hole; 14. a rotating shaft; 15. a telescopic rod; 16. a spring.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-5, the present invention provides a technical solution: a fiber reinforced concrete beam column node comprises column longitudinal steel bars 1, column stirrups 2, node core area stirrups 3, beam longitudinal steel bars 4, reinforcement beam hoops 5, high-performance concrete columns 6, common concrete columns 7, a sliding chute 8, a screw rod 9, a threaded sleeve 10, a connecting lug block 11, a sliding block 12, a threaded hole 13, a rotating shaft 14, a telescopic rod 15 and a spring 16, wherein the column stirrups 2 are distributed and welded on the outer wall between the column longitudinal steel bars 1, the node core area stirrups 3 are welded and fixed on the outer wall of the middle part between the column longitudinal steel bars 1, the beam longitudinal steel bars 4 are sleeved and fixed on the inner wall of one side of the column longitudinal steel bars 1, the beam stirrups 5 are distributed and welded and fixed on the outer wall of one side of the beam longitudinal steel bars 4, the high-performance concrete columns 6 are cast and connected on the inner walls of the middle parts of the column longitudinal steel bars 1 and the beam longitudinal steel bars 4 on one side of the high-performance concrete columns 6, the common concrete columns 7 are cast, connecting lug blocks 11 are distributed and installed on the outer wall of one side of each of the high-performance concrete column 6 and the common concrete column 7, a sliding block 12 is fixedly welded on the outer wall of the bottom end of each connecting lug block 11, a sliding groove 8 is formed in the outer wall of one side of each of the high-performance concrete column 6 and the common concrete column 7 corresponding to the sliding block 12, a screw 9 is rotatably connected to the inner wall of one side of the sliding groove 8, a threaded hole 13 is formed in the inner wall of one side of the sliding block 12 corresponding to the screw 9, a threaded sleeve 10 is connected to the outer wall of the screw 9 located on one side of the sliding block 12 in a threaded manner, a telescopic rod 15 is installed on the inner wall between the connecting lug blocks 11, a rotating shaft 14 is rotatably connected to the inner wall of one side of each connecting lug block 11, one end of the rotating shaft 14 penetrates through the inner wall; a bearing is arranged at the rotating connection position of the rotating shaft 14 and the connecting lug 11, so that the telescopic rod 15 can rotate and move conveniently; the number of the telescopic rods 15 and the number of the springs 16 are four, so that four corners and the telescopic rods 15 form a triangular structure, and the stability of the concrete beam column joint is improved; the rotating connection part of the sliding chute 8 and the screw rod 9 is provided with a bearing, which is convenient for moving the connecting lug block 11, after the pouring of the fiber reinforced concrete beam column node is completed, the threaded sleeve 10 in the sliding chute 8 rotates, then the sliding block 12 is extruded to move along the screw rod 9 through the threaded hole 13, at the moment, the telescopic rod 15 on the connecting lug block 11 extends along the sliding chute 8, the direction of the telescopic rod 15 is adjusted through the rotating shaft 14, the telescopic rod 15 moves to the tail end of the sliding chute 8, then the wall of the high-performance concrete column 6 and the wall of the common concrete column 7 are extruded through the spring 16, the effect of re-reinforcement is realized, the external acting force is prevented from directly acting on the high-performance concrete column 6 and the common concrete column 7, a part of the acting force is always acting on the telescopic rod 15 and the spring 16, and the shearing resistance is reduced for the high-performance concrete column 6, the service life of the device is prolonged.
A manufacturing method of a fiber reinforced concrete beam column node comprises the following steps of firstly, configuring a longitudinal column; step two, configuring nodes; step three, configuring stirrups; step four, configuring a longitudinal beam; step five, pouring concrete; step six, pouring concrete again; seventhly, removing the mold and maintaining;
in the first step, the longitudinal steel bars 1 of the central column of the beam column node are bundled by iron wires, so that the longitudinal steel bars 1 of the four columns and the iron wires are added to form a cuboid, and then the cuboid is placed on the ground for later use;
in the second step, the four node core area stirrups 3 are welded to the center of the bundled column longitudinal steel bar 1 by resistance spot welding to be fixed and positioned, and the beam column node core area stirrups 3 are configured according to the minimum requirement of the specification, so that the materials used by the node core area stirrups 3 are saved conveniently;
binding two column stirrups 2 at each position of the inner side of the column longitudinal steel bar 1, cross-binding the two column stirrups 2 to support the two column stirrups, binding the two column stirrups at a certain distance, and welding the two column stirrups on the column longitudinal steel bar 1 by resistance spot welding;
in the fourth step, six beam longitudinal reinforcements 4 are placed in a rectangular shape and are bundled on the inner side of the middle part of the column longitudinal reinforcement 1, then resistance spot welding is used for welding, then five reinforcement beam hoops 5 are used for bundling each beam longitudinal reinforcement 4 to realize fixation, then resistance spot welding is used for welding, then a beam-supporting column joint template is surrounded on the outer sides of the bundled column longitudinal reinforcements 1 and the beam longitudinal reinforcements 4, and a leakage-proof material is added at the gap of the template to prevent concrete from leaking;
in the fifth step, two partition plates are placed inside the bundled column longitudinal steel bars 1, and the partition plates are h away from the beam longitudinal steel bars 4 respectivelycRice, then placing two partition plates in the bundled beam longitudinal steel bars 4, wherein the distribution distances of the partition plates from the column longitudinal steel bars 1 are all hbRice, pouring the prepared ductile high-performance concrete into the beam column node template and the partition plate, and standing for 2-3 hours to perform initial setting to form a high-performance concrete column 6, wherein the ductile high-performance concrete is prepared from a cement matrix and PVA (polyvinyl alcohol) fibers, and industrial waste fly ash is used for replacing part of cement clinker, so that waste can be recycled;
in the sixth step, after the ductile high-performance concrete is initially set, the four partition boards are taken out, then the four partition boards are distributed and placed at the tail ends of the bundled column longitudinal steel bars 1 and the bundled beam longitudinal steel bars 4 for blocking, then the ordinary concrete is placed into the beam-column node templates and the partition boards, then the ordinary concrete and the ductile high-performance concrete are placed for 6-11 hours for final setting, at the moment, the ordinary concrete column 7 and the high-performance concrete column 6 are completely set, the beam-column node core area, the nearby beam end and the column end are cast by the ductile high-performance concrete within the range of 1 time of the beam-column cross section height and the column cross section height, the rest parts are cast by the ordinary concrete, the FRC presents the characteristics of steady-state cracking, multiple fine crack development and the like when being pulled, and presents the obvious strain hardening characteristic under the action of tensile and bending loads, and the FRC can replace part or all stirrups, the energy consumption capability is superior, and the energy consumption capability is used in a beam column joint area of a frame structure, so that the energy consumption capability has important significance for improving the shearing resistance and the bearing capacity of a beam column joint and constructing the beam column joint;
and in the seventh step, after the common concrete column 7 and the high-performance concrete column 6 are solidified, the beam column node template and the partition plate are taken out, then the beam column node template and the partition plate are placed at a specified position for storage, then a record is made, and then regular maintenance is carried out.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (8)

1. The utility model provides a fibre reinforced concrete beam column node, includes post longitudinal reinforcement (1), post stirrup (2), node core space stirrup (3), roof beam longitudinal reinforcement (4), muscle beam hoop (5), high performance concrete post (6), ordinary concrete post (7), spout (8), screw rod (9), threaded sleeve (10), connecting lug piece (11), slider (12), screw hole (13), pivot (14), telescopic link (15) and spring (16), its characterized in that: column stirrups (2) are fixedly distributed and welded on the outer wall between the column longitudinal reinforcements (1), node core area stirrups (3) are fixedly welded on the outer wall of the middle part between the column longitudinal reinforcements (1), beam longitudinal reinforcements (4) are fixedly sleeved on the inner wall of one side of the column longitudinal reinforcements (1), reinforcement beam stirrups (5) are fixedly distributed and welded on the outer wall of one side of the beam longitudinal reinforcements (4), high-performance concrete columns (6) are connected on the inner walls of the middle parts of the column longitudinal reinforcements (1) and the beam longitudinal reinforcements (4) in a pouring manner, common concrete columns (7) are connected on the inner walls of the column longitudinal reinforcements (1) and the beam longitudinal reinforcements (4) on one side of the high-performance concrete columns (6) in a pouring manner, connecting lug blocks (11) are respectively arranged on the outer walls of one sides of the high-performance concrete columns (6) and the common column concrete columns (7), the connecting lug is characterized in that a sliding block (12) is fixedly welded on the outer wall of the bottom end of each connecting lug block (11), a sliding groove (8) is formed in the outer wall of one side of each high-performance concrete column (6) and the common concrete column (7) in a corresponding mode through the sliding block (12), a screw rod (9) is rotatably connected to the inner wall of one side of the sliding groove (8), a threaded hole (13) is formed in the inner wall of one side of the sliding block (12) in a corresponding mode through the screw rod (9), a threaded sleeve (10) is connected to the outer wall of one side of the sliding block (12) in a threaded mode through the screw rod (9), a telescopic rod (15) is installed on the inner wall between the connecting lug blocks (11), a rotating shaft (14) is rotatably connected to the inner wall of one side of the connecting lug block (11), one end of the rotating shaft (14) penetrates through the, and the spring (16) is sleeved on the outer wall of one side of the telescopic rod (15).
2. A manufacturing method of a fiber reinforced concrete beam column node comprises the following steps of firstly, configuring a longitudinal column; step two, configuring nodes; step three, configuring stirrups; step four, configuring a longitudinal beam; step five, pouring concrete; step six, pouring concrete again; seventhly, removing the mold and maintaining; the method is characterized in that:
in the first step, the longitudinal steel bars (1) of the central column of the beam column node are bundled by iron wires, so that the four longitudinal steel bars (1) of the column are surrounded into a cuboid by the iron wires, and then the cuboid is placed on the ground for later use;
in the second step, the stirrups (3) in the core area of the four nodes are welded to the center of the bundled column longitudinal steel bar (1) by resistance spot welding to fix and position the stirrups;
binding two column stirrups (2) at each position of the inner side of the column longitudinal steel bar (1), cross-binding the two column stirrups (2) to support the column stirrups, binding the column stirrups at a certain distance, and welding the column stirrups (2) on the column longitudinal steel bar (1) by resistance spot welding;
in the fourth step, six beam longitudinal reinforcements (4) are placed according to a rectangle and are bundled on the inner side of the middle part of the column longitudinal reinforcement (1), then resistance spot welding is used for welding, then five reinforcement beam hoops (5) are used for bundling each beam longitudinal reinforcement (4) to realize fixation, then resistance spot welding is used for welding, then a beam-supporting column joint template is surrounded on the outer sides of the bundled column longitudinal reinforcement (1) and the beam longitudinal reinforcement (4), and a leakage-proof material is added at a template gap to prevent concrete from leaking;
in the fifth step, two partition plates are placed inside the bundled column longitudinal steel bars (1), and the partition plates are h away from the beam longitudinal steel bars (4) respectivelycRice, then placing two partition plates inside the bundled beam longitudinal steel bars (4), wherein the distribution distances of the partition plates from the column longitudinal steel bars (1) are all hbRice, pouring the prepared ductile high-performance concrete into the beam column node template and the partition plate, and standing for 2-3 hours to perform initial setting to form a high-performance concrete column (6);
in the sixth step, after the ductile high-performance concrete is initially set, the four partition plates are taken out, then are distributed and placed at the tail ends of the bundled column longitudinal steel bars (1) and the bundled beam longitudinal steel bars (4) for blocking, then the ordinary concrete is placed into the beam column node templates and the partition plates, then the ordinary concrete and the ductile high-performance concrete are placed for 6-11 hours for final setting, and at the moment, the ordinary concrete column (7) and the high-performance concrete column (6) are completely set;
and in the seventh step, after the common concrete column (7) and the high-performance concrete column (6) are solidified, the beam column node template and the partition plate are taken out, then the beam column node template and the partition plate are placed at a specified position for storage, then a record is made, and then regular maintenance is carried out.
3. A fiber reinforced concrete beam column node according to claim 1, wherein: and a bearing is arranged at the rotary connection position of the rotating shaft (14) and the connecting lug block (11).
4. A fiber reinforced concrete beam column node according to claim 1, wherein: the number of the telescopic rods (15) and the number of the springs (16) are four.
5. The method of claim 2, wherein the method comprises the steps of: the ductile high-performance concrete is prepared from a cement matrix and PVA fibers, wherein industrial waste (fly ash) is used for replacing part of cement clinker.
6. The method of claim 2, wherein the method comprises the steps of: the stirrups (3) in the core area of the beam-column joint are configured according to the minimum requirement of the specification.
7. The method of claim 2, wherein the method comprises the steps of: and the core area of the beam-column joint, the adjacent beam end and column end (1 time of the height of the beam section and the height range of the column section) are cast by using ductile high-performance concrete, and the rest parts are cast by using common concrete.
8. A fiber reinforced concrete beam column node according to claim 1, wherein: and a bearing is arranged at the rotary connection part of the sliding chute (8) and the screw rod (9).
CN202010415661.6A 2020-05-16 2020-05-16 Fiber reinforced concrete beam column joint and manufacturing method thereof Pending CN111535444A (en)

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Cited By (3)

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Publication number Priority date Publication date Assignee Title
CN112922210A (en) * 2021-01-27 2021-06-08 江苏海洋大学 Connecting device for self-resetting anti-side frame and floor slab
CN113756433A (en) * 2021-09-06 2021-12-07 百盛联合集团有限公司 Reinforcing and quick connecting structure and method for reinforcing steel bars of reinforced concrete column and reinforced concrete beam
CN115012670A (en) * 2022-05-19 2022-09-06 上海师范大学 Multilayer anchoring connection method for fiber reinforced concrete beam-column joint

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Application publication date: 20200814