CN113062451B - Construction method of special-shaped assembly type frame beam column joint connection system - Google Patents

Construction method of special-shaped assembly type frame beam column joint connection system Download PDF

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CN113062451B
CN113062451B CN202110362000.6A CN202110362000A CN113062451B CN 113062451 B CN113062451 B CN 113062451B CN 202110362000 A CN202110362000 A CN 202110362000A CN 113062451 B CN113062451 B CN 113062451B
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cast
place
prefabricated
column
node
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CN113062451A (en
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崔国静
吴常明
张磊
何一婷
王俊杰
娄涛
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Shaanxi Construction Industry Investment Group Co ltd
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Shaanxi Construction Industry Investment Group Co ltd
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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
    • 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

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Conveying And Assembling Of Building Elements In Situ (AREA)

Abstract

The invention discloses a construction method of a special-shaped assembly type frame beam-column joint connecting system, which comprises the following steps: firstly, dividing a prefabricated structure area, a prefabricated cast-in-place connecting area and a cast-in-place structure area; secondly, constructing a prefabricated structure area; and thirdly, constructing a prefabricated cast-in-place connecting area and a cast-in-place structure area. The prefabricated cast-in-place combined node of the beam-column node connecting system has various structures, can meet the assembly requirement of the special-shaped assembly type frame, can improve the construction efficiency of the special-shaped assembly type frame on the premise of ensuring the safety of the special-shaped assembly type frame structure, can shorten the construction period, is simple and feasible in construction method, and can fully exert the advantages of the assembly type structure.

Description

Construction method of special-shaped assembly type frame beam column joint connection system
Technical Field
The invention belongs to the technical field of assembly type building construction, and particularly relates to a construction method of a special-shaped assembly type frame beam column joint connection system.
Background
With the development of assembly type building technology in China, some public buildings such as office buildings, canteens, activity centers and the like are constructed by adopting the assembly type integral concrete frame structure technology. In order to meet the requirements of building functions and attractiveness, most of the building plane designs are special-shaped, so that the beam-column connection is prefabricated and combined and connected in a cast-in-place mode. The related content of the assembly type frame structure in the current national relevant standard is less, only common connecting nodes are described, and no specific construction record is provided for prefabricated and cast-in-place combined nodes. Therefore, in order to solve the problem of node connection of the prefabricated cast-in-place combination of the special-shaped assembly type frame structure and fill up the technical blank in the field, the construction method of the special-shaped assembly type frame beam-column node connection system is provided.
Disclosure of Invention
The invention aims to solve the technical problem that the defects in the prior art are overcome, and the construction method of the special-shaped fabricated frame beam-column joint connection system is provided.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows: a construction method of a special-shaped assembly type frame beam column joint connection system is characterized by comprising the following steps:
step one, the demarcation of prefabricated structure district, prefabricated cast-in-place joining region and cast-in-place structure district:
the prefabricated structure area comprises a plurality of prefabricated beam column nodes for assembling and constructing the prefabricated structure area, the cast-in-place structure area comprises a plurality of cast-in-place beam column nodes for cast-in-place molding of the cast-in-place structure area, the prefabricated cast-in-place connecting area is positioned between the adjacent prefabricated structure area and the cast-in-place structure area, and the prefabricated cast-in-place connecting area comprises a first prefabricated cast-in-place beam column combination node, a second prefabricated cast-in-place beam column combination node, a third prefabricated cast-in-place beam column combination node and a fourth prefabricated cast-in-place beam column combination node;
step two, construction of a prefabricated structure area:
constructing a plurality of prefabricated beam-column joints in a prefabricated structure area, wherein the prefabricated beam-column joints comprise prefabricated columns and prefabricated components arranged at the top ends of the prefabricated columns;
step three, prefabricating a cast-in-place connecting area and a cast-in-place structural area:
constructing a plurality of prefabricated cast-in-place combined nodes in a prefabricated cast-in-place connecting area, wherein the types of the prefabricated cast-in-place combined nodes comprise a first prefabricated cast-in-place beam-column combined node, a second prefabricated cast-in-place beam-column combined node, a third prefabricated cast-in-place beam-column combined node and a fourth prefabricated cast-in-place beam-column combined node, the first prefabricated cast-in-place beam-column combined node, the second prefabricated cast-in-place beam-column combined node, the third prefabricated cast-in-place beam-column combined node and the fourth prefabricated cast-in-place beam-column combined node respectively comprise a cylinder body, a prefabricated beam and a cast-in-place beam which are arranged at the top end of the cylinder body, the prefabricated beam and the cast-in-place beam are connected into a whole through a cast-in-place connecting layer, the cast-in-place connecting layer and the cast-in-place beam are integrally formed, and the cylinder body of the first prefabricated cast-in-place beam-column combined node and the second prefabricated beam-column combined node are both prefabricated columns, the prefabricated beam and the cast-in-place beam of the first prefabricated cast-in-place beam-column combination node are orthogonally arranged, the prefabricated beam and the cast-in-place beam of the second prefabricated cast-in-place beam-column combination node are non-orthogonally arranged, the cylinder of the third prefabricated cast-in-place beam-column combination node and the cylinder of the fourth prefabricated cast-in-place beam-column combination node are both cast-in-place columns, the prefabricated beam and the cast-in-place beam of the third prefabricated cast-in-place beam-column combination node are orthogonally arranged, and the prefabricated beam and the cast-in-place beam of the fourth prefabricated cast-in-place beam-column combination node are non-orthogonally arranged; constructing a plurality of cast-in-situ beam column nodes in a cast-in-situ structural area, wherein the cast-in-situ beam column nodes comprise cast-in-situ columns and cast-in-situ members arranged at the top ends of the cast-in-situ columns; the specific construction process comprises the following steps:
step 301, determining the type of a prefabricated cast-in-place combined node;
when the prefabricated cast-in-place combined node is the first prefabricated cast-in-place beam-column combined node or the second prefabricated cast-in-place beam-column combined node, executing step 302;
when the prefabricated cast-in-place combined node is the third prefabricated cast-in-place beam-column combined node and the fourth prefabricated cast-in-place beam-column combined node, executing the step 303;
step 302, constructing a first prefabricated cast-in-place beam-column combined node or a second prefabricated cast-in-place beam-column combined node, wherein the specific construction process is as follows:
step 3021, sequentially hoisting the prefabricated beam and the reinforcement cage of the cast-in-place beam required by the first prefabricated cast-in-place beam-column combined node or the second prefabricated cast-in-place beam-column combined node to the top end of the installed prefabricated column;
step 3022, binding stirrups at connecting positions of the prefabricated columns of the first prefabricated cast-in-place beam-column combination node or the second prefabricated cast-in-place beam-column combination node, the prefabricated beams and the reinforcement cages of the cast-in-place beams, and then executing step 304 and step 305;
step 303, constructing a third prefabricated cast-in-place beam-column combined node or a fourth prefabricated cast-in-place beam-column combined node, wherein the concrete construction process is as follows:
3031, casting and molding a cast-in-place column of a third prefabricated cast-in-place beam-column combination node or a fourth prefabricated cast-in-place beam-column combination node;
step 3032, hoisting the prefabricated beam and the reinforcement cage of the cast-in-place beam required by the third prefabricated cast-in-place beam-column combined node or the fourth prefabricated cast-in-place beam-column combined node to the top end of the cast-in-place column;
3033, binding stirrups at connecting positions of the cast-in-place columns of the third prefabricated cast-in-place beam-column combination node or the cast-in-place beams of the fourth prefabricated cast-in-place beam-column combination node, the prefabricated beams and the reinforcement cages of the cast-in-place beams, and then executing the step 304 and the step 305;
step 304, construction of a cast-in-place column of the cast-in-place structural area: constructing a cast-in-situ column of a plurality of cast-in-situ beam column nodes in a cast-in-situ structural area;
step 305, constructing a cast-in-place member of a cast-in-place structural area, a cast-in-place beam of a prefabricated cast-in-place connecting area and a cast-in-place connecting layer:
and constructing a cast-in-situ component of a plurality of cast-in-situ beam column nodes in a cast-in-situ structural area, and constructing a cast-in-situ beam and a cast-in-situ connecting layer of a plurality of prefabricated cast-in-situ combined nodes in a prefabricated cast-in-situ connecting area.
The construction method of the special-shaped assembly type frame beam-column joint connecting system is characterized by comprising the following steps of: the prefabricated column is characterized in that a plurality of vertical embedded steel bars are embedded in the top end of the prefabricated column, a plurality of vertical connecting steel bars extend out of the top end of a steel reinforcement cage of the prefabricated column, and the vertical embedded steel bars or the vertical connecting steel bars are connected through a plurality of first square stirrups which are arranged at intervals along the length direction of the vertical embedded steel bars or the vertical connecting steel bars.
The construction method of the special-shaped assembly type frame beam-column joint connecting system is characterized by comprising the following steps of: the bottom of two end faces of the precast beam is pre-embedded with a plurality of horizontal pre-embedded steel bars arranged in rows, the bottom of two end faces of a steel reinforcement cage of the cast-in-place beam extends out of a plurality of horizontal connecting steel bars arranged in rows, and a horizontal plane formed by the plurality of horizontal pre-embedded steel bars is parallel to a horizontal plane formed by the plurality of horizontal connecting steel bars.
The construction method of the special-shaped assembly type frame beam-column joint connecting system is characterized by comprising the following steps of: and two adjacent first square stirrups are provided with a stirrup reinforcing layer for connecting a plurality of vertical embedded steel bars, and the stirrup reinforcing layer comprises a second square stirrup and a waist-shaped stirrup which are positioned in the same horizontal plane.
The construction method of the special-shaped assembly type frame beam-column joint connecting system is characterized by comprising the following steps of: the sum of the number of the precast beams of the first precast cast-in-place beam-column combined node and the number of the cast-in-place beams is equal to four, and the precast beams and the cast-in-place beams are arranged in a cross shape.
The construction method of the special-shaped assembly type frame beam-column joint connecting system is characterized by comprising the following steps of: the number of the prefabricated beams of the third prefabricated cast-in-place beam-column combined node is two, the number of the cast-in-place beams is one, and the two prefabricated beams and one cast-in-place beam are arranged in a T shape.
The construction method of the special-shaped assembly type frame beam-column joint connecting system is characterized by comprising the following steps of: the cast-in-place beam of the third precast cast-in-place beam column combination node is two in number, the precast beam is one in number, and the two cast-in-place beams and the precast beam are arranged in a T shape.
The construction method of the special-shaped assembly type frame beam-column joint connecting system is characterized by comprising the following steps of: the prefabricated beam of the second prefabricated cast-in-place beam column combination node is two, two the prefabricated beam is arranged adjacently, the horizontal included angle between two adjacent prefabricated beams is equal to 90 degrees, the cast-in-place beam of the second prefabricated cast-in-place beam column combination node is three, the horizontal included angle between two adjacent cast-in-place beams is a first included angle alpha, and alpha satisfies that alpha is more than or equal to 15 degrees and is less than 90 degrees.
The construction method of the special-shaped assembly type frame beam-column joint connecting system is characterized by comprising the following steps of: the number of the prefabricated beams of the fourth prefabricated cast-in-place beam-column combined node is two, the two prefabricated beams are arranged adjacently, the horizontal included angle between the two adjacent prefabricated beams is equal to 90 degrees, the number of the cast-in-place beams of the fourth prefabricated cast-in-place beam-column combined node is two, the horizontal included angle between the two cast-in-place beams is a second included angle beta, and beta is larger than or equal to 15 degrees and smaller than 180 degrees.
The construction method of the special-shaped assembly type frame beam-column joint connecting system is characterized by comprising the following steps of: in step 305, the construction process of prefabricating the cast-in-place beam and the cast-in-place connecting layer of the cast-in-place connecting area and the cast-in-place member of the cast-in-place structural area is as follows: the construction method comprises the steps of firstly constructing a cast-in-place beam of a prefabricated cast-in-place connecting area and a template of a cast-in-place connecting layer, then constructing a template of a cast-in-place component of a cast-in-place structure area, finally pouring concrete, and integrally forming the cast-in-place beam and the cast-in-place connecting layer of the prefabricated cast-in-place connecting area and the cast-in-place component of the cast-in-place structure area.
Compared with the prior art, the invention has the following advantages:
1. the special-shaped assembly type frame comprises two prefabricated structure areas arranged at an angle and a cast-in-place structure area positioned between the two prefabricated structure areas, a prefabricated cast-in-place connecting area is formed between the prefabricated structure areas and the cast-in-place structure area, the prefabricated structure areas are assembled and constructed by utilizing a plurality of prefabricated beam column nodes, the cast-in-place structure area is formed by utilizing a plurality of cast-in-place beam column nodes, each prefabricated beam column node comprises a prefabricated column and a prefabricated component arranged at the top end of the corresponding prefabricated column, each cast-in-place beam column node comprises a cast-in-place column and a cast-in-place component arranged at the top end of the corresponding cast-in-place column, when the prefabricated structure area is connected with the cast-in-place structure area, a prefabricated cast-in-place connecting area is formed between the prefabricated structure area and the cast-in-place structure area, a plurality of prefabricated cast-in-place combined nodes are arranged in the prefabricated connecting area, and the prefabricated combined nodes can be a first prefabricated beam column combined node, a second prefabricated beam column combined node, a cast-in-place combined node, The prefabricated cast-in-place beam column composite node of third or the prefabricated cast-in-place beam column composite node of fourth, the structure of prefabricated cast-in-place composite node is various, prefabricated cast-in-place composite node through prefabricated component and the common formation of cast-in-place component, can realize the purpose of founding dysmorphism assembled frame, and simultaneously, the stability of dysmorphism assembled frame construction can be improved, under the prerequisite of guaranteeing dysmorphism assembled frame construction safety, the efficiency of construction of dysmorphism assembled frame can be improved, construction period can be shortened, and simultaneously, energy-concerving and environment-protective, can promote engineering quality and quality, prefabricated cast-in-place composite node of assembled frame construction beam column has been enriched, can promote the continuous development of assembled building trade.
2. The first prefabricated cast-in-place beam-column combination node, the second prefabricated cast-in-place beam-column combination node, the third prefabricated cast-in-place beam-column combination node and the fourth prefabricated cast-in-place beam-column combination node of the beam-column joint connection system of the invention all comprise a cylinder body, a prefabricated beam and a cast-in-place beam, the cylinder body can be a prefabricated column or a cast-in-place column, because the structure of the cast-in-place column is different from that of the prefabricated column, and the construction method of the cast-in-place column is different from that of the prefabricated column, the cylinder body of the first prefabricated cast-in-place beam-column combination node and the cylinder body of the second prefabricated cast-in-place beam-column combination node are both prefabricated columns, the cylinder body of the third prefabricated cast-in-place beam-column combination node and the cylinder body of the fourth prefabricated cast-in-place beam-column combination node are both cast-in-place columns, the first prefabricated cast-in-place beam-column combination node, the second prefabricated cast-in-place beam-column combination node, the third prefabricated beam-place column combination node and the fourth prefabricated beam-column combination node are taken as typical structures of the prefabricated cast-in-place combination node, in practical application, the construction of the special-shaped assembly type frame engineering can be guided.
3. When the precast beams and the cast-in-place beams of the beam-column node connecting system are orthogonally arranged, T-shaped precast cast-in-place combined nodes, right-angle precast cast-in-place combined nodes and cross precast cast-in-place combined nodes can be formed in the precast cast-in-place connecting area, and when the precast beams and the cast-in-place beams are non-orthogonally arranged, a special-shaped connecting structure of the precast cast-in-place connecting area can be formed, the assembling requirements of a special-shaped assembling type frame can be met, and the attractiveness of an assembling type building can be improved.
4. The construction method is simple and easy to implement, can save the construction period, can fully exert the advantages of the fabricated building, and is convenient to popularize and apply.
In conclusion, the prefabricated cast-in-place combined node of the beam-column node connection system has various structures, can improve the stability of the special-shaped assembled frame structure, can meet the assembly requirements of the special-shaped assembled frame, can improve the construction efficiency of the special-shaped assembled frame on the premise of ensuring the safety of the special-shaped assembled frame structure, can shorten the construction period, is simple and easy to implement in the construction method, and can fully exert the advantages of an assembled building.
The invention is described in further detail below with reference to the figures and examples.
Drawings
FIG. 1 is a flow chart of the construction method of the present invention.
Fig. 2 is a schematic structural diagram of the beam-column joint connection system of the present invention.
Fig. 3 is a schematic structural view of a first prefabricated cast-in-place beam-column combined node.
FIG. 4 is a schematic view of the connection relationship of the precast columns, the precast beams, the cast-in-place beams and the cast-in-place connecting layers.
Fig. 5 is a schematic structural view of a second prefabricated cast-in-place beam-column combined node.
Fig. 6 is a schematic structural view of a third prefabricated cast-in-place beam-column combined node.
Fig. 7 is a schematic structural view of a fourth prefabricated cast-in-place beam-column combined node of the invention.
Description of reference numerals:
1-prefabricating a column; 1-vertically embedding reinforcing steel bars; 2, casting a column in situ;
2-1-vertical connecting steel bars; 3, prefabricating a beam; 3-1, horizontally embedding reinforcing steel bars;
4, casting a beam in situ; 4-1-horizontally connecting reinforcing steel bars; 5, a first square stirrup;
6-second square stirrup; 7-waist-shaped stirrup; 8, casting a connecting layer in situ;
9-prefabricating beam-column joints; 10-cast-in-place beam column node;
11-a first prefabricated cast-in-place beam-column combined node; 12-second prefabricated cast-in-place beam column combined node;
13-third prefabricating a cast-in-place beam-column combined node; 14-fourth prefabricated cast-in-place beam column combination node.
Detailed Description
As shown in fig. 1 to 7, the construction method of the special-shaped fabricated frame beam-column joint connection system provided by the invention comprises the following steps:
step one, the demarcation of prefabricated structure district, prefabricated cast-in-place joining region and cast-in-place structure district:
the prefabricated structure area comprises a plurality of prefabricated beam column nodes 9 used for assembling and constructing the prefabricated structure area, the cast-in-place structure area comprises a plurality of cast-in-place beam column nodes 10 used for cast-in-place molding of the cast-in-place structure area, the prefabricated cast-in-place connecting area is positioned between the adjacent prefabricated structure area and the cast-in-place structure area, and the prefabricated cast-in-place connecting area comprises a first prefabricated cast-in-place beam column combination node 11, a second prefabricated cast-in-place beam column combination node 12, a third prefabricated cast-in-place beam column combination node 13 and a fourth prefabricated cast-in-place beam column combination node 14;
as shown in fig. 2, in this embodiment, the special-shaped fabricated frame includes two prefabricated structural regions arranged at an angle, and a cast-in-place structural region located between the two prefabricated structural regions, a prefabricated cast-in-place connecting region is formed between the prefabricated structural regions, the prefabricated structural regions are assembled and constructed by using a plurality of prefabricated beam-column nodes 9, the cast-in-place structural region is formed by using a plurality of cast-in-place beam-column nodes 10, the prefabricated beam-column nodes 9 include prefabricated columns 1 and prefabricated members arranged at the top ends of the prefabricated columns 1, the cast-in-place beam-column nodes 10 include cast-in-place columns 2 and cast-in-place members arranged at the top ends of the cast-in-place columns 2, when the prefabricated structural regions are connected with the cast-in-place structural regions, a prefabricated cast-in-place connecting region is formed between the prefabricated structural regions and the cast-in-place structural regions, a plurality of cast-in-place combined nodes are arranged in the prefabricated cast-in-place connecting region, and the prefabricated cast-in-place combined nodes can be the first prefabricated beam-column combined node 11, The prefabricated cast-in-place beam column combination node 12 of second, prefabricated cast-in-place beam column combination node 13 of third or prefabricated cast-in-place beam column combination node 14 of fourth, the structure of prefabricated cast-in-place combination node is various, prefabricated cast-in-place combination node through prefabricated component and the common formation of cast-in-place component, can realize the purpose of constructing special-shaped assembled frame, and simultaneously, can improve special-shaped assembled frame construction's stability, under the prerequisite of guaranteeing special-shaped assembled frame construction safety, can improve the efficiency of constructing of special-shaped assembled frame, can shorten construction period, and simultaneously, energy-concerving and environment-protective, can promote engineering quality and quality, prefabricated cast-in-place combination node of assembled frame construction beam column has been enriched, can promote the continuous development of assembled building trade.
In this embodiment, through carrying out internal force analysis calculation to the structure of dysmorphism assembled frame, according to the result of internal force analysis calculation, combine the plane layout condition of dysmorphism assembled frame, the frame construction that stress is little and the plane layout is regular adopts the prefabricated component assembly, the demarcation is prefabricated structural region, and the frame construction that stress is big and the plane layout is irregular adopts cast-in-place construction, the demarcation is cast-in-place structural region, through carrying out the split design to dysmorphism assembled frame, not only be favorable to guaranteeing structural design safety, and be favorable to realizing the standardized design in prefabricated structural region, can reduce engineering construction cost.
Step two, construction of a prefabricated structure area:
constructing a plurality of precast beam column nodes 9 in a precast structure area, wherein the precast beam column nodes 9 comprise precast columns 1 and precast members arranged at the top ends of the precast columns 1;
in this embodiment, before constructing the prefabricated cast-in-place connecting area and the cast-in-place structure area, the construction of the prefabricated structure area needs to be performed first, so that the prefabricated cast-in-place connecting area is prefabricated in the subsequent construction, the prefabricated columns 1 and the prefabricated components of the prefabricated beam column nodes 9 are all processed in a prefabrication factory, and the prefabricated columns 1 and the prefabricated components are transported to a construction site for assembly, so that the construction is facilitated.
Step three, prefabricating a cast-in-place connecting area and a cast-in-place structural area:
constructing a plurality of prefabricated cast-in-place combined nodes in a prefabricated cast-in-place connecting area, wherein the types of the prefabricated cast-in-place combined nodes comprise a first prefabricated cast-in-place beam-column combined node 11, a second prefabricated cast-in-place beam-column combined node 12, a third prefabricated cast-in-place beam-column combined node 13 and a fourth prefabricated cast-in-place beam-column combined node 14, the first prefabricated cast-in-place beam-column combined node 11, the second prefabricated cast-in-place beam-column combined node 12, the third prefabricated cast-in-place beam-column combined node 13 and the fourth prefabricated cast-in-place beam-column combined node 14 respectively comprise a cylinder body, a prefabricated beam 3 and a cast-in-place beam 4 which are arranged at the top end of the cylinder body, the prefabricated beam 3 and the cast-in-place beam 4 are connected into a whole through a cast-in-place connecting layer 8, the cast-in-place connecting layer 8 and the cast-in-place beam 4 are integrally formed, the cylinder body of the first prefabricated cast-in-place beam-column combined node 11 and the cylinder body of the second prefabricated beam-column combined node 12 are all prefabricated columns 1, the prefabricated beam 3 and the cast-in-place beam 4 of the first prefabricated cast-in-place beam-column combination node 11 are orthogonally arranged, the prefabricated beam 3 and the cast-in-place beam 4 of the second prefabricated cast-in-place beam-column combination node 12 are non-orthogonally arranged, the cylinder of the third prefabricated cast-in-place beam-column combination node 13 and the cylinder of the fourth prefabricated cast-in-place beam-column combination node 14 are both cast-in-place columns 2, the prefabricated beam 3 and the cast-in-place beam 4 of the third prefabricated cast-in-place beam-column combination node 13 are orthogonally arranged, and the prefabricated beam 3 and the cast-in-place beam 4 of the fourth prefabricated cast-in-place beam-column combination node 14 are non-orthogonally arranged; constructing a plurality of cast-in-situ beam column nodes 10 in a cast-in-situ structural area, wherein each cast-in-situ beam column node 10 comprises a cast-in-situ column 2 and a cast-in-situ member arranged at the top end of the cast-in-situ column 2; the specific construction process comprises the following steps:
step 301, determining the type of a prefabricated cast-in-place combined node;
when the prefabricated cast-in-place combined node is the first prefabricated cast-in-place beam-column combined node 11 or the second prefabricated cast-in-place beam-column combined node 12, executing step 302;
when the prefabricated cast-in-place combined nodes are the third prefabricated cast-in-place beam-column combined node 13 and the fourth prefabricated cast-in-place beam-column combined node 14, executing step 303;
as shown in fig. 3, 4, 5, 6 and 7, in this embodiment, each of the first prefabricated cast-in-place beam-column combination node 11, the second prefabricated cast-in-place beam-column combination node 12, the third prefabricated cast-in-place beam-column combination node 13 and the fourth prefabricated cast-in-place beam-column combination node 14 includes a column body, a prefabricated beam 3 and a cast-in-place beam 4, the column body may be a prefabricated column 1 or a cast-in-place column 2, the cast-in-place column 2 has a structure different from that of the prefabricated column 1, the cast-in-place column 2 has a construction method different from that of the prefabricated column 1, the column bodies of the first prefabricated cast-in-place beam-column combination node 11 and the second prefabricated cast-in-place beam-column combination node 12 are both prefabricated columns 1, the column body of the third prefabricated cast-in-place beam-column combination node 13 and the cast-in-place beam-column combination node 14 are both cast-in-place columns 2, and the first prefabricated beam-column combination node 11, the second prefabricated cast-in-place beam-column, The second prefabricated cast-in-place beam-column combination node 12, the third prefabricated cast-in-place beam-column combination node 13 and the fourth prefabricated cast-in-place beam-column combination node 14 are used as typical structures of prefabricated cast-in-place combination nodes, and construction of special-shaped assembly type frame engineering can be guided in practical application.
During actual construction, when the column body is the prefabricated column 1, prefabrication of the prefabricated column 1 is completed in a prefabrication factory, only installation of the prefabricated column 1 is needed in a construction site, after the prefabricated column 1 is installed, hoisting of a reinforcement cage of the prefabricated beam 3 and the cast-in-place beam 4 is performed, then installation of stirrups is performed at the connecting positions of the prefabricated column 1, the prefabricated beam 3 and the cast-in-place beam 4, then template construction of the cast-in-place beam 4 and the cast-in-place connecting layer 8 can be performed, finally, concrete is cast in place, and the cast-in-place connecting layer 8 and the cast-in-place beam 4 are integrally formed; when the column body is the cast-in-place column 2, firstly, template construction of the cast-in-place column 2 and pouring forming of the cast-in-place column 2 are required to be carried out on a construction site, then, the precast beam 3 and the cast-in-place beam 4 are arranged at the top end of the cast-in-place column 2, the cast-in-place column 2 can be suitable for a special-shaped assembly type frame with a complex structure, the construction form is flexible and various, the construction method is simple and feasible, the construction period can be saved, and the advantages of the assembly type building can be fully exerted.
In the embodiment, when the precast beams 3 and the cast-in-place beams 4 are orthogonally arranged, the T-shaped precast cast-in-place combined node, the right-angle precast cast-in-place combined node and the cross precast cast-in-place combined node can be formed in the precast cast-in-place connecting area, and when the precast beams 3 and the cast-in-place beams 4 are non-orthogonally arranged, the special-shaped connecting structure of the precast cast-in-place connecting area can be formed, the assembling requirements of the special-shaped assembling type frame can be met, and the attractiveness of the assembling type building can be improved.
Step 302, constructing the first prefabricated cast-in-place beam-column combined node or the second prefabricated cast-in-place beam-column combined node, wherein the specific construction process comprises the following steps:
step 3021, sequentially hoisting the reinforcement cages of the prefabricated beam 3 and the cast-in-place beam 4 required by the first prefabricated cast-in-place beam-column combined node 11 or the second prefabricated cast-in-place beam-column combined node 12 to the top end of the installed prefabricated column 1;
in this embodiment, not only prefabricated beam 3's hoist and mount has been carried out in step 3021, cast-in-place beam 4's hoist and mount has been carried out in addition, be convenient for utilize the stirrup to carry out the ligature to prefabricated post 1, prefabricated beam 3 and cast-in-place beam 4's hookup location in follow-up step 3022, with the prior art in advance carry out cast-in-place beam 4's template construction, the construction order of carrying out cast-in-place beam 4's hoist and mount again compares, need not adjust the steel bar structure of prefabricated post 1, prefabricated beam 3 and cast-in-place beam 4's hookup location department repeatedly, construction period has been practiced thrift greatly, excellent in use effect.
Step 3022, binding stirrups at connecting positions of the reinforcement cages of the precast column 1, the precast beam 3 and the cast-in-place beam 4 of the first precast cast-in-place beam-column combined node 11 or the second precast cast-in-place beam-column combined node 12, and then executing step 304 and step 305;
step 303, constructing a third prefabricated cast-in-place beam-column combined node or a fourth prefabricated cast-in-place beam-column combined node, wherein the concrete construction process is as follows:
3031, casting and molding a cast-in-place column 2 of a third prefabricated cast-in-place beam-column combination node 13 or a fourth prefabricated cast-in-place beam-column combination node 14;
in this embodiment, since the column body of the third prefabricated cast-in-place beam-column combination node 13 and the column body of the fourth prefabricated cast-in-place beam-column combination node 14 are both cast-in-place columns 2, the construction of the cast-in-place columns 2 needs to be performed first, and then the hoisting of the reinforcement cages of the prefabricated beam 3 and the cast-in-place beam 4 in the subsequent step 3032 needs to be performed.
3032, sequentially hoisting the reinforcement cages of the prefabricated beam 3 and the cast-in-place beam 4 required by the third prefabricated cast-in-place beam-column combined node 13 or the fourth prefabricated cast-in-place beam-column combined node 14 to the top end of the cast-in-place column 2;
in this embodiment, not only the precast beam 3 but also the reinforcement cage of the cast-in-place beam 4 is hoisted in the step 3032, so that the connection positions of the reinforcement cages of the cast-in-place column 2, the precast beam 3 and the cast-in-place beam 4 are bound by using stirrups in the subsequent step 3033, and the reinforcement structures at the connection positions of the reinforcement cages of the cast-in-place column 2, the precast beam 3 and the cast-in-place beam 4 do not need to be adjusted repeatedly.
Step 3033, binding stirrups at connecting positions of reinforcement cages of the cast-in-place column 2, the precast beam 3 and the cast-in-place beam 4 of the third precast cast-in-place beam-column combined node 13 or the fourth precast cast-in-place beam-column combined node 14, and then executing step 304 and step 305;
step 304, construction of a cast-in-place column of the cast-in-place structural area: constructing a plurality of cast-in-situ columns 2 of cast-in-situ beam column nodes 10 in a cast-in-situ structural area;
step 305, constructing a cast-in-place component of a cast-in-place structure area, a cast-in-place beam of a prefabricated cast-in-place connection area and a cast-in-place connection layer:
and constructing cast-in-place components of a plurality of cast-in-place beam column nodes 10 in a cast-in-place structural area, and constructing cast-in-place beams 4 and cast-in-place connecting layers 8 of a plurality of prefabricated cast-in-place combined nodes in a prefabricated cast-in-place connecting area.
As shown in fig. 3 and 4, in this embodiment, a plurality of vertical embedded steel bars 1-1 are embedded in the top end of the prefabricated column 1, a plurality of vertical connecting steel bars 2-1 extend from the top end of the reinforcement cage of the cast-in-place column 2, and the plurality of vertical embedded steel bars 1-1 or the plurality of vertical connecting steel bars 2-1 are connected by a plurality of first square stirrups 5 arranged at intervals along the length direction of the plurality of vertical embedded steel bars 1-1.
In this embodiment, a plurality of horizontal embedded steel bars 3-1 arranged in rows are embedded at the bottoms of two end surfaces of the precast beam 3, a plurality of horizontal connecting steel bars 4-1 arranged in rows extend out of the bottoms of two end surfaces of a steel reinforcement cage of the cast-in-place beam 4, and a horizontal plane formed by the plurality of horizontal embedded steel bars 3-1 is parallel to a horizontal plane formed by the plurality of horizontal connecting steel bars 4-1.
In this embodiment, a steel bar structure located in the cast-in-place connecting layer 8 is formed on the top end of the prefabricated column 1 by the vertical embedded steel bars 1-1, the first square stirrups 5, the horizontal embedded steel bars 3-1 and the horizontal connecting steel bars 4-1 together, and a steel bar structure located in the cast-in-place connecting layer 8 is formed on the top end of the cast-in-place column 2 by the vertical connecting steel bars 2-1, the first square stirrups 5, the horizontal embedded steel bars 3-1 and the horizontal connecting steel bars 4-1 together, so that the problem of steel bar collision in the steel bar structure is avoided, and a horizontal plane formed by the plurality of horizontal embedded steel bars 3-1 is parallel to a horizontal plane formed by the plurality of horizontal connecting steel bars 4-1.
As shown in fig. 3 and 4, in this embodiment, a stirrup reinforcing layer for connecting a plurality of vertical embedded steel bars 1-1 is arranged between two adjacent first square stirrups 5, and the stirrup reinforcing layer includes a second square stirrup 6 and a waist-shaped stirrup 7 located in the same horizontal plane.
In this embodiment, through setting up a plurality of stirrup enhancement layers, a plurality of stirrup enhancement layers can strengthen steel bar structure's stability, and the stirrup enhancement layer includes square stirrup 6 of second and waist type stirrup 7, and square stirrup 6 of second and waist type stirrup 7 all are located the inside of first square stirrup 5, and mainly used reinforcing steel bar structure central part's stability can improve steel bar structure central part and cast-in-place articulamentum 8's anchor power.
As shown in fig. 3, in this embodiment, the sum of the number of the precast beams 3 and the number of the cast-in-place beams 4 of the first precast cast-in-place beam-column combined node 11 is equal to four, and the precast beams 3 and the cast-in-place beams 4 are arranged in a cross shape.
During actual construction, when the sum of the number of the precast beams 3 and the number of the cast-in-place beams 4 is equal to four, and the precast beams 3 and the cast-in-place beams 4 are arranged in a cross shape, a cross beam column precast cast-in-place combined node can be formed, and because the number of the precast beams 3 or the number of the cast-in-place beams 4 in the cross beam column precast cast-in-place combined node can be changed according to the structure of the assembly type frame, the specific arrangement mode of the precast beams 3 and the cast-in-place beams 4 can be changed, the assembly requirements of the assembly type frames with different structures can be met, and the cross beam column precast cast-in-place combined node has the advantages of strong bearing capacity and stable structure, so the cross beam column precast cast-in-place combined node is widely applied to the assembly type frame construction.
In this embodiment, the number of the precast beams 3 of the third precast cast-in-place beam-column combined node 13 is two, the number of the cast-in-place beams 4 is one, and the two precast beams 3 and one cast-in-place beam 4 are arranged in a T shape.
As shown in fig. 6, in this embodiment, the number of the cast-in-place beams 4 of the third prefabricated cast-in-place beam-column combination node 13 is two, the number of the prefabricated beams 3 is one, and the two cast-in-place beams 4 and one prefabricated beam 3 are arranged in a T shape.
When two cast-in-place beams 4 and one prefabricated beam 3 are arranged in a T shape or two prefabricated beams 3 and one cast-in-place beam 4 are arranged in a T shape, T-shaped beam-column prefabricated cast-in-place combined node can be formed, the T-shaped beam-column prefabricated cast-in-place combined node can be widely applied to an assembled frame structure, the T-shaped beam-column prefabricated cast-in-place combined node is flexible and diverse in construction forms, the prefabricated cast-in-place combined node of the assembled frame structure beam column is enriched, and the continuous development of the assembled building industry is promoted.
As shown in fig. 5, in this embodiment, the number of the precast beams 3 of the second precast cast-in-place beam-column combined node 12 is two, two precast beams 3 are adjacently arranged, a horizontal included angle between two adjacent precast beams 3 is equal to 90 °, the number of the cast-in-place beams 4 of the second precast cast-in-place beam-column combined node 12 is three, a horizontal included angle between two adjacent cast-in-place beams 4 is a first included angle α, and α satisfies an angle α of 15 ° or more and less than 90 °.
In the embodiment, when the angle alpha is less than 15 degrees, namely the horizontal included angle between two adjacent cast-in-place beams 4 is too small as the first included angle alpha, the reliability of the connection between the two adjacent cast-in-place beams 4 and the top end of the precast column 1 is poor, and the difficulty of field construction is high; the number of the prefabricated beams 3 of the second prefabricated cast-in-place beam-column combined node 12 is two, the horizontal included angle between every two adjacent prefabricated beams 3 is equal to 90 degrees, the number of the cast-in-place beams 4 of the second prefabricated cast-in-place beam-column combined node 12 is three, namely the three cast-in-place beams 4 need to be arranged in a space with the horizontal angle of 270 degrees, and therefore alpha cannot be larger than or equal to 90 degrees.
As shown in fig. 7, in this embodiment, the number of the prefabricated beams 3 of the fourth prefabricated cast-in-place beam-column combined node 14 is two, two prefabricated beams 3 are adjacently arranged, a horizontal included angle between two adjacent prefabricated beams 3 is equal to 90 °, the number of the cast-in-place beams 4 of the fourth prefabricated cast-in-place beam-column combined node 14 is two, a horizontal included angle between two cast-in-place beams 4 is a second included angle β, and β satisfies that β is greater than or equal to 15 ° and less than 180 °.
In this embodiment, when β is smaller than 15 °, that is, the horizontal included angle between two adjacent cast-in-place beams 4 is too small as the second included angle β, the reliability of the connection between two adjacent cast-in-place beams 4 and the top end of the cast-in-place column 2 is poor, and the difficulty of field construction is large; because the number of the prefabricated beams 3 of the fourth prefabricated cast-in-place beam-column combined node 14 is two, the horizontal included angle between every two adjacent prefabricated beams 3 is equal to 90 degrees, and the number of the cast-in-place beams 4 of the fourth prefabricated cast-in-place beam-column combined node 14 is two, namely the two cast-in-place beams 4 need to be arranged in a space with the horizontal angle of 180 degrees, beta cannot meet the condition that beta is larger than or equal to 180 degrees.
In this embodiment, in step 305, the cast-in-place beam 4 and the cast-in-place connection layer 8 of the cast-in-place connection area, and the cast-in-place member of the cast-in-place structure area are prefabricated by the following steps: firstly, carrying out template construction of a cast-in-place beam 4 and a cast-in-place connecting layer 8 of a prefabricated cast-in-place connecting area, then carrying out template construction of a cast-in-place component of a cast-in-place structural area, and finally, pouring concrete, and integrally forming the cast-in-place beam 4 and the cast-in-place connecting layer 8 of the prefabricated cast-in-place connecting area and the cast-in-place component of the cast-in-place structural area.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and all simple modifications, changes and equivalent structural changes made to the above embodiment according to the technical spirit of the present invention still fall within the protection scope of the technical solution of the present invention.

Claims (10)

1. A construction method of a special-shaped assembly type frame beam column joint connection system is characterized by comprising the following steps:
step one, dividing a prefabricated structure area, a prefabricated cast-in-place connecting area and a cast-in-place structure area:
the prefabricated structure area comprises a plurality of prefabricated beam column nodes (9) used for assembling and constructing the prefabricated structure area, the cast-in-place structure area comprises a plurality of cast-in-place beam column nodes (10) used for cast-in-place molding of the cast-in-place structure area, the prefabricated cast-in-place connecting area is positioned between the adjacent prefabricated structure area and the cast-in-place structure area, and the prefabricated cast-in-place connecting area comprises a first prefabricated cast-in-place beam column combination node (11), a second prefabricated cast-in-place beam column combination node (12), a third prefabricated cast-in-place beam column combination node (13) and a fourth prefabricated cast-in-place beam column combination node (14);
step two, construction of a prefabricated structure area:
constructing a plurality of prefabricated beam-column joints (9) in a prefabricated structure area, wherein the prefabricated beam-column joints (9) comprise prefabricated columns (1) and prefabricated components arranged at the top ends of the prefabricated columns (1);
step three, prefabricating a cast-in-place connecting area and a cast-in-place structural area:
constructing a plurality of prefabricated cast-in-place combined nodes in a prefabricated cast-in-place connecting area, wherein the types of the prefabricated cast-in-place combined nodes comprise a first prefabricated cast-in-place beam-column combined node (11), a second prefabricated cast-in-place beam-column combined node (12), a third prefabricated cast-in-place beam-column combined node (13) and a fourth prefabricated cast-in-place beam-column combined node (14), each of the first prefabricated cast-in-place beam-column combined node (11), the second prefabricated cast-in-place beam-column combined node (12), the third prefabricated cast-in-place beam-column combined node (13) and the fourth prefabricated cast-in-place beam-column combined node (14) comprises a column body, a prefabricated beam (3) and a cast-in-place beam (4) which are arranged at the top end of the column body, the prefabricated beam (3) and the cast-in-place beam (4) are connected into a whole through a cast-in-place connecting layer (8), and the cast-in-place connecting layer (8) and the cast-in-place beam (4) are integrally formed, the prefabricated cast-in-place beam column combination node comprises a first prefabricated cast-in-place beam column combination node (11), a second prefabricated cast-in-place beam column combination node (12), a prefabricated beam (3) and a cast-in-place beam (4) of the first prefabricated cast-in-place beam column combination node (11) are arranged orthogonally, the prefabricated beam (3) and the cast-in-place beam (4) of the second prefabricated cast-in-place beam column combination node (12) are arranged non-orthogonally, a prefabricated beam (3) and a cast-in-place beam (4) of a third prefabricated cast-in-place beam column combination node (13) are arranged orthogonally, and a prefabricated beam (3) and a cast-in-place beam (4) of the fourth prefabricated cast-in-place beam column combination node (14) are arranged non-orthogonally; constructing a plurality of cast-in-situ beam column nodes (10) in a cast-in-situ structural area, wherein each cast-in-situ beam column node (10) comprises a cast-in-situ column (2) and a cast-in-situ member arranged at the top end of the cast-in-situ column (2); the specific construction process comprises the following steps:
step 301, determining the type of a prefabricated cast-in-place combined node;
when the prefabricated cast-in-place combined node is the first prefabricated cast-in-place beam-column combined node (11) or the second prefabricated cast-in-place beam-column combined node (12), executing step 302;
when the prefabricated cast-in-place combined node is the third prefabricated cast-in-place beam-column combined node (13) and the fourth prefabricated cast-in-place beam-column combined node (14), executing the step 303;
step 302, constructing a first prefabricated cast-in-place beam-column combined node or a second prefabricated cast-in-place beam-column combined node, wherein the specific construction process is as follows:
step 3021, sequentially hoisting the reinforcement cages of the precast beam (3) and the cast-in-place beam (4) required by the first precast cast-in-place beam-column combined node (11) or the second precast cast-in-place beam-column combined node (12) to the top end of the installed precast column (1);
step 3022, binding stirrups at connecting positions of the prefabricated column (1) of the first prefabricated cast-in-place beam-column combined node (11) or the prefabricated column (12) of the second prefabricated cast-in-place beam-column combined node (12), the prefabricated beam (3) and a reinforcement cage of the cast-in-place beam (4), and then executing step 304 and step 305;
step 303, constructing a third prefabricated cast-in-place beam-column combined node or a fourth prefabricated cast-in-place beam-column combined node, wherein the concrete construction process is as follows:
3031, casting and molding a cast-in-place column (2) of a third prefabricated cast-in-place beam-column combination node (13) or a fourth prefabricated cast-in-place beam-column combination node (14);
3032, hoisting the reinforcement cages of the precast beam (3) and the cast-in-place beam (4) required by the third precast cast-in-place beam-column combined node (13) or the fourth precast cast-in-place beam-column combined node (14) to the top end of the cast-in-place column (2) in sequence;
3033, binding stirrups at connecting positions of the reinforcement cages of the cast-in-place column (2), the precast beam (3) and the cast-in-place beam (4) of the third precast cast-in-place beam-column combined node (13) or the fourth precast cast-in-place beam-column combined node (14), and then executing the step 304 and the step 305;
step 304, construction of a cast-in-place column of the cast-in-place structural area: constructing a plurality of cast-in-situ columns (2) of cast-in-situ beam-column nodes (10) in a cast-in-situ structural area;
step 305, constructing a cast-in-place member of a cast-in-place structural area, a cast-in-place beam of a prefabricated cast-in-place connecting area and a cast-in-place connecting layer:
and constructing cast-in-place components of a plurality of cast-in-place beam column nodes (10) in a cast-in-place structural area, and constructing cast-in-place beams (4) and cast-in-place connecting layers (8) of a plurality of prefabricated cast-in-place combined nodes in a prefabricated cast-in-place connecting area.
2. The construction method of the special-shaped assembly type frame beam-column joint connecting system according to claim 1, characterized by comprising the following steps: the prefabricated column is characterized in that a plurality of vertical embedded steel bars (1-1) are embedded in the top end of the prefabricated column (1), a plurality of vertical connecting steel bars (2-1) extend out of the top end of a steel reinforcement cage of the prefabricated column (2), and the vertical embedded steel bars (1-1) or the vertical connecting steel bars (2-1) are connected through a plurality of first square stirrups (5) which are arranged at intervals along the length direction of the vertical embedded steel bars.
3. The construction method of the special-shaped assembly type frame beam-column joint connection system according to claim 1, wherein the construction method comprises the following steps: the bottom of two end faces of the precast beam (3) is pre-embedded with a plurality of horizontal embedded steel bars (3-1) arranged in rows, the bottom of two end faces of a steel reinforcement cage of the cast-in-place beam (4) extends out of a plurality of horizontal connecting steel bars (4-1) arranged in rows, and a horizontal plane formed by the horizontal embedded steel bars (3-1) is parallel to a horizontal plane formed by the horizontal connecting steel bars (4-1).
4. The construction method of the special-shaped assembly type frame beam-column joint connection system according to claim 2, characterized by comprising the following steps of: and a hoop reinforcement layer used for connecting a plurality of vertical embedded steel bars (1-1) is arranged between every two adjacent first square hoops (5), and comprises a second square hoop (6) and a waist-shaped hoop (7) which are positioned in the same horizontal plane.
5. The construction method of the special-shaped assembly type frame beam-column joint connection system according to claim 1, wherein the construction method comprises the following steps: the sum of the number of the precast beams (3) of the first precast cast-in-place beam-column combined node (11) and the number of the cast-in-place beams (4) is equal to four, and the precast beams (3) and the cast-in-place beams (4) are arranged in a cross shape.
6. The construction method of the special-shaped assembly type frame beam-column joint connection system according to claim 1, wherein the construction method comprises the following steps: the number of the precast beams (3) of the third precast cast-in-place beam-column combined node (13) is two, the number of the cast-in-place beams (4) is one, and the two precast beams (3) and one cast-in-place beam (4) are arranged in a T shape.
7. The construction method of the special-shaped assembly type frame beam-column joint connection system according to claim 1, wherein the construction method comprises the following steps: the cast-in-place beam (4) of the third prefabricated cast-in-place beam column combination node (13) is two, the number of the prefabricated beam (3) is one, and the two cast-in-place beams (4) and the prefabricated beam (3) are arranged in a T shape.
8. The construction method of the special-shaped assembly type frame beam-column joint connection system according to claim 1, wherein the construction method comprises the following steps: the prefabricated beam (3) of the second prefabricated cast-in-place beam column combination node (12) is two, two the prefabricated beams (3) are adjacently arranged, the horizontal included angle between every two adjacent prefabricated beams (3) is equal to 90 degrees, the cast-in-place beams (4) of the second prefabricated cast-in-place beam column combination node (12) are three, the horizontal included angle between every two adjacent cast-in-place beams (4) is a first included angle alpha, and alpha is more than or equal to 15 degrees and less than 90 degrees.
9. The construction method of the special-shaped assembly type frame beam-column joint connection system according to claim 1, wherein the construction method comprises the following steps: the number of the prefabricated beams (3) of the fourth prefabricated cast-in-place beam column combined node (14) is two, the two prefabricated beams (3) are adjacently arranged, the horizontal included angle between the two adjacent prefabricated beams (3) is equal to 90 degrees, the number of the cast-in-place beams (4) of the fourth prefabricated cast-in-place beam column combined node (14) is two, the horizontal included angle between the two cast-in-place beams (4) is a second included angle beta, and beta is more than or equal to 15 degrees and less than 180 degrees.
10. The construction method of the special-shaped fabricated frame beam-column joint connection system according to claim 1, characterized in that: in the step 305, the construction process of prefabricating the cast-in-place beam (4) and the cast-in-place connecting layer (8) of the cast-in-place connecting area and the cast-in-place member of the cast-in-place structural area comprises the following steps: firstly, carrying out template construction of a cast-in-place beam (4) and a cast-in-place connecting layer (8) of a prefabricated cast-in-place connecting area, then carrying out template construction of a cast-in-place component of a cast-in-place structural area, finally, pouring concrete, and integrally forming the cast-in-place beam (4) and the cast-in-place connecting layer (8) of the prefabricated cast-in-place connecting area and the cast-in-place component of the cast-in-place structural area.
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