CN114000585B - Precast concrete beam column connecting joint and connecting method - Google Patents
Precast concrete beam column connecting joint and connecting method Download PDFInfo
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- CN114000585B CN114000585B CN202111362001.7A CN202111362001A CN114000585B CN 114000585 B CN114000585 B CN 114000585B CN 202111362001 A CN202111362001 A CN 202111362001A CN 114000585 B CN114000585 B CN 114000585B
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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
- E04B1/20—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of concrete, e.g. reinforced concrete, or other stonelike material
- E04B1/21—Connections specially adapted therefor
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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
- E04B1/20—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of concrete, e.g. reinforced concrete, or other stonelike material
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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
- E04B1/20—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of concrete, e.g. reinforced concrete, or other stonelike material
- E04B1/21—Connections specially adapted therefor
- E04B1/215—Connections specially adapted therefor comprising metallic plates or 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
- 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
- E04H9/025—Structures with concrete columns
Abstract
The invention discloses a precast concrete beam column connecting node and a connecting method, which comprise two precast concrete columns, two precast concrete beams, a plurality of steel bar extrusion sleeves, a central firmware and two auxiliary firmwares, wherein the two precast concrete columns are arranged in parallel; the central firmware comprises a cross barrel and a cross plate; two ends of the cross cylinder are respectively and fixedly connected with one end of each of the two precast concrete columns; the cross plate is inserted in the cross cylinder; the auxiliary fixing piece comprises I-shaped steel and two connecting cover plates; the I-shaped steel and the precast concrete beam are integrally formed, and two ends of the I-shaped steel respectively extend out of two end faces of the precast concrete beam; one end of the I-shaped steel is fixedly connected with the cross plate through two connecting cover plates; the two precast concrete columns are fixedly connected through the crossed cylinders and the plurality of steel bar extrusion sleeves respectively. The invention can improve the tensile strength of the precast concrete beam column connecting node and enhance the shock resistance of the building applying the invention.
Description
Technical Field
The invention relates to the field of concrete installation, in particular to a precast concrete beam column connecting node and a connecting method.
Background
The connection nodes of the existing studied fabricated structure can be roughly divided into a prestressed splicing node, a post-cast integral type connection node, a bolt connection node and a welding node. The prestressed splicing joint is a mode that a prestressed tendon penetrates out of a reserved hole of a concrete beam column, then is tensioned and anchored at the side edges of a precast beam and the column, and finally the precast beam column is connected together in a mode of pouring mortar into the reserved hole. The post-cast integral connection is a connection mode that after the beam column is installed in place, steel bars in the precast beam column are connected, and then a concrete strip is integrally cast at the beam column connection position by using concrete. The welding connection is realized by welding the connecting pieces embedded in the members. The bolt connection is a mode of pre-burying steel plates and bolt holes in precast beams and columns and then connecting the beams and the columns by bolts, and the assembled frame can quickly reach certain strength by the mode. The bolt connection has the advantages of strong adaptability, less environmental influence, convenient and fast construction and the like, so the bolt connection is widely applied. In the research of the current assembled beam-column connecting node, bolt connection is the focus of research of many scholars, so various bolt connection forms are in endless.
The connection and positioning requirements of the vertical members are high, more temporary supports are required to be arranged after connection, and the construction efficiency is not high; the post is indulged the muscle and is adopted grout muffjoint, and construction process is complicated, and construction quality detects inconveniently, and node core area reinforcing bar is more, and the construction is inconvenient, and construction quality should not guarantee, and the muffjoint quality detects inconveniently, and node core area reinforcing bar is crowded, the difficult problem of construction.
Disclosure of Invention
The invention aims to provide a precast concrete beam-column connecting joint and a connecting method, which are used for solving the problems in the prior art, improving the tensile strength of the precast concrete beam-column connecting joint and enhancing the seismic capacity of a building to which the precast concrete beam-column connecting joint is applied.
In order to achieve the purpose, the invention provides the following scheme:
the invention provides a precast concrete beam column connecting node which comprises two precast concrete columns, two precast concrete beams, a plurality of steel bar extrusion sleeves, a central firmware and two auxiliary firmers, wherein the two precast concrete columns are arranged on the two precast concrete beams;
the central fixture comprises a cross barrel and a cross plate; two ends of the cross cylinder are respectively fixedly connected with one ends of the two precast concrete columns; the cross plate is inserted in the cross cylinder;
the auxiliary fixing piece comprises I-shaped steel and two connecting cover plates; the I-shaped steel and the precast concrete beam are integrally formed, and two ends of the I-shaped steel respectively extend out of two end faces of the precast concrete beam; one end of the I-shaped steel is fixedly connected with the cross plate through the two connecting cover plates;
and the two precast concrete columns are fixedly connected through the cross cylinder and the plurality of steel bar extrusion sleeves respectively.
Preferably, the cross barrel comprises two steel tubes; the outer diameter of one of the steel pipes is equal to the inner diameter of the other steel pipe; one end of each of the two steel pipes is fixedly connected with one end of each of the two precast concrete columns, and the end face of the other end of each of the steel pipes is fixedly connected with four fixing pieces at equal intervals along the circumferential direction; a separation groove is formed between every two adjacent fixing sheets; the cross plate is arranged in the separation groove; the fixing pieces of the two steel pipes are arranged correspondingly; the outer side surface of the fixing piece on the steel pipe with the small diameter is attached to the inner side surface of the fixing piece on the steel pipe with the large diameter.
Preferably, two of the fixing pieces attached to each other are screwed.
Preferably, the cross plate comprises two gusset plates; the middle parts of the two gusset plates are provided with slots; the two gusset plates are inserted into the slots in a cross shape; the gusset plates are inserted into the separation grooves.
Preferably, the thickness of the node plate is equal to the width of the separation groove.
A connecting method of a precast concrete beam-column connecting joint comprises the following steps:
preparing a connecting part; integrally forming concrete and the I-shaped steel into the precast concrete beam, and integrally forming the concrete and the steel pipe into the precast concrete column;
connecting the concrete columns: fixedly connecting the two precast concrete columns through the steel pipes; utilizing the steel bar extrusion sleeves to respectively fixedly connect the ends of the steel bars extending out of the two precast concrete columns;
connecting the concrete beam: fixedly connecting the precast concrete beam with the cross barrel by using the auxiliary firmware;
preferably, the concrete is RPC concrete.
Preferably, in the step of preparing the connecting member, a framework is formed by matching a reinforcing frame and the i-shaped steel, and then the precast concrete beam is prepared by casting the concrete; and fixedly connecting one end of the steel pipe to the reinforcing steel bar frame, and then casting the concrete to prepare the precast concrete column.
The invention discloses the following technical effects:
according to the invention, the upper and lower columns are positioned by the column end embedded steel pipes and the gusset plates, the connection construction and positioning between the columns are convenient, the stability is high, the columns are connected, extruded and connected by the reinforcing steel bar sleeves and connected by the sleeves, the construction process is simple, the quality detection is convenient, the precast beams and the plates adopt the overlapped components, the precast beam end embedded I-steel is connected with the gusset plates in the node core area by the high-strength bolts, the construction process does not need to be supported, the construction is convenient and rapid, the active powder concrete with high strength and high toughness is poured into the whole after the node core area and the beam ends, the ultrahigh strength and toughness of the active powder concrete can be fully utilized, the use amount of the separated stirrups in the core area is reduced or the separated stirrups are not used, the problems of the node core area that the reinforcing steel bars are crowded and difficult to construct are solved, the outward movement of the plastic hinge positions of the beam ends can be realized by reasonably arranging the additional longitudinal bars penetrating through the nodes, the beam ends are firstly bent and damaged under the earthquake action, and the ductility and the energy consumption capability of the structure are improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive exercise.
FIG. 1 is a schematic side view of the present invention.
Figure 2 is a schematic view of the cross barrel and cross plate assembly of the present invention.
Fig. 3 is a side view structural diagram of the precast concrete beam after the precast concrete beam is assembled.
Fig. 4 is a schematic structural view of a prefabricated concrete beam after the prefabricated concrete beam is assembled.
FIG. 5 is a schematic diagram of a node plate structure.
FIG. 6 is a schematic diagram of a side view of the embodiment.
Fig. 7 is a schematic partial structure diagram of the fifth embodiment.
FIG. 8 is a schematic diagram of a side view of a cross board according to an embodiment.
FIG. 9 is a schematic diagram of a second and fourth side views of the embodiment.
1, prefabricating a concrete column; 2. prefabricating a concrete beam; 3. extruding the sleeve by the steel bar; 4. a separate stirrup; 5. connecting a cover plate; 6. a gusset plate; 8. i-shaped steel; 9. a steel pipe; 10. a fixing sheet; 11. a separation tank; 12. an auxiliary plate; 13. inserting slots; 14. a nitrogen spring; 15. a fixed block; 16. a limiting tongue; 17, a pressure gauge; 18. a feeding hole; 19. a long bolt.
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.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
The first embodiment is as follows:
referring to fig. 1 to 5, a precast concrete beam-column connection node includes two precast concrete columns 1, two precast concrete beams 2, a plurality of steel bar extrusion sleeves 3, a center fixing member, and two auxiliary fixing members;
the central firmware comprises a cross barrel and a cross plate; two ends of the crossed cylinder are respectively fixedly connected with one ends of the two precast concrete columns 1; the cross plate is inserted in the cross cylinder;
the auxiliary fixing piece comprises an I-shaped steel 8 and two connecting cover plates 5; a reinforcing frame is fixedly connected to the periphery of the I-shaped steel 8 and integrally formed with the precast concrete beam 2, and two ends of the I-shaped steel 8 respectively extend out of two end faces of the precast concrete beam 2 to form fixed ends; one end of the I-shaped steel 8 is fixedly connected with the cross plate through two connecting cover plates 5 by using screws;
further, the reinforcing frame is a cage-shaped structural member formed by fixing a plurality of reinforcing bars, which is prior art and is not described herein again.
The two precast concrete columns 1 are fixedly connected through a cross cylinder and a plurality of steel bar extrusion sleeves 3 respectively.
Further, the precast concrete column 1 is integrally formed by utilizing a steel bar frame, a crossed cylinder fixedly connected above the steel bar frame and a plurality of steel bars, and the crossed cylinder and the steel bars extend out of one end face of the precast concrete column; one end of the corresponding steel bar of the two precast concrete columns 1 is fixedly connected through a steel bar extrusion sleeve 3.
Furthermore, a separate stirrup 4 is fixedly connected to the peripheral sides of the plurality of steel bars exposed out of the end face of the precast concrete column 1, so that a lateral support can be provided for the mutual connection of the plurality of steel bars.
Further, in order to facilitate clear understanding of the technical structure of the present invention, flanges at both ends of the i-beam 8 in fig. 2 to 4 and 6 to 7 are shown in the drawings.
In a further optimized scheme, the crossed cylinder comprises two steel pipes 9; the outer diameter of one of the steel pipes 9 is equal to the inner diameter of the other steel pipe 9; one ends of the two steel tubes 9 are respectively in one-to-one correspondence with one ends of the two precast concrete columns 1 and are fixedly connected with the two precast concrete columns 1, and the two precast concrete columns 1 are respectively fixedly connected with each other through the two steel tubes 9; four fixing pieces 10 are fixedly connected to the end face of the other end of the steel pipe 9 at equal intervals along the circumferential direction; a separation groove 11 is formed between two adjacent fixing sheets 10;
further, the fixing pieces 10 fixedly connected with one ends of the two steel pipes 9 are respectively arranged in a one-to-one correspondence manner; the separation grooves 11 formed by the fixing pieces 10 fixedly connected with one ends of the two steel pipes 9 can be communicated with each other, so that the cross plates can be conveniently inserted.
The separation grooves 11 are matched with the cross plates, and the cross plates are arranged in the separation grooves 11; the fixing pieces 10 of the two steel pipes 9 are arranged correspondingly; wherein the outer side surface of the fixing piece 10 on the small diameter steel pipe 9 is jointed with the inner side surface of the fixing piece 10 on the large diameter steel pipe 9.
Furthermore, one end of a fixing piece 10 on the small-diameter steel pipe 9 is arranged in the inner cavity of the steel pipe 9, the outer side face of the fixing piece 10 is attached to the inner wall of the steel pipe 9, the fixing piece 10 in the steel pipe 9 is limited, and the tensile strength of the cross cylinder is improved.
Further optimize scheme, two stationary blades 10 spiro union of laminating each other utilize the bolt of high strength to connect two stationary blades 10 of laminating each other, make the stationary blade 10 of laminating each other connect into a whole, and then make all steel pipes 9 and stationary blade 10 all connect into a whole, have further improved the tensile strength who crosses a section of thick bamboo.
In a further optimized scheme, the cross plate comprises two gusset plates 6; the middle parts of the two gusset plates 6 are provided with slots 13; the two gusset plates 6 are inserted into a cross shape through the slots 13; the gusset plates 6 are inserted into the separation grooves 11, and four-way connection of connection points of the concrete beam column is realized through the insertion interlocking of the two gusset plates 6 through the insertion grooves 13.
Furthermore, an auxiliary plate 12 is fixedly connected to the middle of one side of the gusset plate 6 far away from the slot 13; the two opposite side surfaces of the auxiliary plate 12 are respectively matched with the inner wall of the steel tube 9 and are in sliding contact with the inner wall of the steel tube 9, the auxiliary support of the steel tube 9 is realized by the auxiliary plate 12, and the tensile strength of the crossed cylinder is further improved.
In a further preferred embodiment, the thickness of the gusset 6 is equal to the width of the separation groove 11.
A connecting method of a precast concrete beam-column connecting joint comprises the following steps:
preparing a connecting part; integrally forming the concrete and the I-shaped steel 8 into a precast concrete beam 2, and integrally forming the concrete and the steel pipe 9 into a precast concrete column 1;
connecting the concrete columns: fixedly connecting the two precast concrete columns 1 through steel pipes 9; the ends of the reinforcing steel bars extending out of the two precast concrete columns 1 are fixedly connected by using a reinforcing steel bar extrusion sleeve 3;
connecting a concrete beam: fixedly connecting the precast concrete beam 2 with the cross cylinder by using an auxiliary firmware; the fixed ends are formed at the two ends of the I-shaped steel 8, the fixed ends of the I-shaped steel 8 are in threaded connection with one end of the node plate 6 through the two connecting cover plates 5, the fixed ends of the I-shaped steel 8 and the node plate 6 are arranged between the two connecting cover plates 5 respectively, the I-shaped steel 8, the node plate 6 and the connecting cover plates 5 are integrally fixedly connected through high-strength bolts, and the connecting strength of the precast concrete column 1 and the precast concrete beam 2 is improved.
According to a further optimization scheme, the concrete is RPC concrete.
According to the further optimization scheme, in the step of preparing the connecting part, the reinforcing steel frames and the I-shaped steel 8 are matched to form a framework, and then concrete is cast to prepare the precast concrete beam 2; one end of the steel tube 9 is fixedly connected to the steel bar frame, and then concrete is cast to prepare the precast concrete column 1.
Example two:
as shown in fig. 8 to 9, the fixing pieces 10 and the cross plate of the present embodiment are different from those of the first embodiment only in that not only two fixing pieces 10 attached to each other are screwed, but also four fixing pieces 10 spaced apart and fixed to the steel pipe 9 are fixed together by a long bolt 19. The long bolts 19 penetrate through the two gusset plates 6 and are fixedly connected to the two gusset plates 6, preferably by welding, and the overall strength can be improved.
Two gusset plates 6 are mutually inserted through the slots 13, and after the two gusset plates 6 are inserted in place, the two gusset plates 6 are welded along the slots 13, so that the two gusset plates 6 are integrated, and the tensile strength of the two gusset plates 6 is improved.
Example three:
the connecting method of the precast concrete beam-column connecting node of the embodiment further comprises the following steps:
grouting: after all the structures in the first embodiment are connected, the parts between the opposite side surfaces of the two precast concrete columns 1, the cross cylinders and the cross plates are all cast with concrete, meanwhile, the two ends of the two node plates 6 fixedly connected with the I-beams 8 extend out of the cast concrete blocks, and the two precast concrete columns 1, the cross cylinders and the cross plates are connected into a whole by casting the concrete, so that the cross cylinders and the cross plates are used as frameworks, the concrete is used as filling, and the connection strength and the tensile strength of the connection points of the concrete beams and columns are improved.
Example four
As shown in fig. 9, in this embodiment, in addition to the third embodiment, the side wall of the fixing piece 10 is provided with a plurality of feeding holes 18, so that the fluidity of concrete during grouting is improved, the concrete is filled more fully, and the strength of the cast concrete block is higher.
EXAMPLE five
Referring to fig. 6 to 7, the present embodiment is different from the first embodiment in that the connection cover plate 5 is eliminated; one end of the I-shaped steel 8 is rotatably connected with the gusset plate 6; one side of the gusset plate 6 is provided with a nitrogen spring 14; the nitrogen spring 14 is fixedly connected with one side of the gusset plate 6 through a fixing block 15, and a telescopic rod of the nitrogen spring 14 is fixedly connected with a limiting tongue 16; the limiting tongue 16 penetrates through one side of the node plate 6 and extends out of the other side of the node plate 6; the limiting tongue 16 is of a cubic structure, and the bottom surface of the limiting tongue is chamfered; the limiting tongue 16 is connected with the gusset plate 6 in a sliding way;
the top surface of one end of the I-shaped steel 8 is arranged below the inclined surface of the limiting tongue 16 and is matched with the inclined surface of the limiting tongue 16; all the nitrogen springs 14 are connected in series with each other by gas lines (not shown in the drawings); and a pressure gauge is connected in series on the gas line;
the technical effect of the embodiment is that the concrete block cast through the connecting point is used as a fixed node, the I-shaped steel 8 fixedly connected to the precast concrete beam 2 realizes the limiting of the precast concrete beam 2 through the limiting tongue 16, and when external force is applied to the building applied by the invention, the invention can utilize the connection of the I-shaped steel 8 and the node plate 6, thereby improving the connecting strength of the connecting point of the concrete beam column; meanwhile, when the external force exceeds the connection strength of the connection point of the concrete beam column, the I-shaped steel 8 and the node plate 6 can rotate, so that rigid damage caused by rigid connection is reduced, the swinging speed of the I-shaped steel 8 is buffered by the aid of the nitrogen springs 14 fixedly connected with the node plate 6, and in order to prevent damage of the nitrogen springs 14 and avoid failure of the integral device caused by damage of a single nitrogen spring 14, all the nitrogen springs 14 are connected in series, and the pressure gauge 17 is used for monitoring the condition of the whole device, so that failure of the integral device is avoided.
In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, are merely for convenience of description of the present invention, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
The above-described embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements of the technical solutions of the present invention can be made by those skilled in the art without departing from the spirit of the present invention, and the technical solutions of the present invention are within the scope of the present invention defined by the claims.
Claims (6)
1. A precast concrete beam column connecting node is characterized by comprising two precast concrete columns (1), two precast concrete beams (2), a plurality of steel bar extrusion sleeves (3), a center firmware and two auxiliary firmwares;
the central fixture comprises a cross barrel and a cross plate; two ends of the cross cylinder are respectively and fixedly connected with one ends of the two precast concrete columns (1); the cross plate is inserted in the cross cylinder;
the auxiliary fixing piece comprises an I-shaped steel (8) and two connecting cover plates (5); the I-shaped steel (8) and the precast concrete beam (2) are integrally formed, and two ends of the I-shaped steel (8) respectively extend out of two end faces of the precast concrete beam (2); one end of the I-shaped steel (8) is fixedly connected with the cross plate through the two connecting cover plates (5);
the two precast concrete columns (1) are fixedly connected through the cross cylinder and the plurality of steel bar extrusion sleeves (3) respectively;
the cross barrel comprises two steel tubes (9); the outer diameter of one steel pipe (9) is equal to the inner diameter of the other steel pipe (9); one ends of the two steel pipes (9) are respectively and fixedly connected with one ends of the two precast concrete columns (1), and the end face of the other end of each steel pipe (9) is fixedly connected with four fixing pieces (10) at equal intervals along the circumferential direction; a separation groove (11) is formed between two adjacent fixing sheets (10); the cross plate is arranged in the separation groove (11); the fixing pieces (10) of the two steel pipes (9) are arranged correspondingly; wherein the outer side surface of the fixing piece (10) on the small-diameter steel pipe (9) is attached to the inner side surface of the fixing piece (10) on the large-diameter steel pipe (9);
the cross plate comprises two gusset plates (6); the middle parts of the two gusset plates (6) are provided with slots (13); the two gusset plates (6) are inserted into the slots (13) in a cross shape; the gusset plates (6) are inserted into the separation grooves (11);
four that the interval of rigid coupling set up on steel pipe (9) stationary blade (10) are in the same place through a stay bolt (19) rigid coupling, stay bolt (19) run through two gusset plate (6) and with two gusset plate (6) fixed connection, two gusset plate (6) are passed through slot (13) are pegged graft each other.
2. A precast concrete beam-column connection node according to claim 1, wherein: the two mutually attached fixing pieces (10) are in threaded connection.
3. A precast concrete beam column connection node according to claim 1, wherein: the thickness of the gusset plate (6) is equal to the width of the separation groove (11).
4. A method of connecting a precast concrete beam-column connection node according to any one of claims 1 to 3, wherein: the method comprises the following steps:
preparing a connecting part; integrally forming the precast concrete beam (2) by using concrete and the I-shaped steel (8), and integrally forming the precast concrete column (1) by using the concrete and the steel pipe (9);
connecting the concrete columns: fixedly connecting the two precast concrete columns (1) through the steel pipes (9); the ends of the steel bars extending out of the two precast concrete columns (1) are fixedly connected by utilizing the steel bar extrusion sleeves (3);
connecting a concrete beam: and fixedly connecting the precast concrete beam (2) with the cross barrel by using the auxiliary firmware.
5. The method for connecting a precast concrete beam-column connection node according to claim 4, wherein: the concrete is RPC concrete.
6. The method for connecting a precast concrete beam-column connection node according to claim 4, wherein: in the step of preparing the connecting part, a framework is formed by matching a reinforcing steel frame and the I-shaped steel (8), and then the precast concrete beam (2) is prepared by casting the concrete; and fixedly connecting one end of the steel pipe (9) to the steel bar frame, and then casting the concrete to prepare the precast concrete column (1).
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| CN202111362001.7A CN114000585B (en) | 2021-11-17 | 2021-11-17 | Precast concrete beam column connecting joint and connecting method |
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| CN202111362001.7A CN114000585B (en) | 2021-11-17 | 2021-11-17 | Precast concrete beam column connecting joint and connecting method |
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| CN114000585B true CN114000585B (en) | 2023-03-03 |
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