CN114508172B - Prefabricated assembled column beam node core area and construction method thereof - Google Patents

Prefabricated assembled column beam node core area and construction method thereof Download PDF

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Publication number
CN114508172B
CN114508172B CN202210139010.8A CN202210139010A CN114508172B CN 114508172 B CN114508172 B CN 114508172B CN 202210139010 A CN202210139010 A CN 202210139010A CN 114508172 B CN114508172 B CN 114508172B
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China
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column
plate
assembled
clamping groove
vertical
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CN202210139010.8A
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CN114508172A (en
Inventor
庞永祥
朱丹
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Jiangsu Huajiang Construction Group Co ltd
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Jiangsu Huajiang Construction Group Co ltd
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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
    • 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
    • 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
    • E04B1/38—Connections for building structures in general
    • E04B1/58—Connections for building structures in general of bar-shaped building elements
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
    • E04C5/01—Reinforcing elements of metal, e.g. with non-structural coatings
    • E04C5/02—Reinforcing elements of metal, e.g. with non-structural coatings of low bending resistance
    • E04C5/03—Reinforcing elements of metal, e.g. with non-structural coatings of low bending resistance with indentations, projections, ribs, or the like, for augmenting the adherence to the concrete
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
    • E04C5/01—Reinforcing elements of metal, e.g. with non-structural coatings
    • E04C5/06—Reinforcing elements of metal, e.g. with non-structural coatings of high bending resistance, i.e. of essentially three-dimensional extent, e.g. lattice girders
    • E04C5/0604—Prismatic or cylindrical reinforcement cages composed of longitudinal bars and open or closed stirrup rods
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
    • E04C5/16—Auxiliary parts for reinforcements, e.g. connectors, spacers, stirrups
    • E04C5/162—Connectors or means for connecting parts for reinforcements
    • E04C5/163—Connectors or means for connecting parts for reinforcements the reinforcements running in one single direction
    • E04C5/165—Coaxial connection by means of sleeves
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G13/00—Falsework, forms, or shutterings for particular parts of buildings, e.g. stairs, steps, cornices, balconies foundations, sills
    • E04G13/02—Falsework, forms, or shutterings for particular parts of buildings, e.g. stairs, steps, cornices, balconies foundations, sills for columns or like pillars; Special tying or clamping means therefor
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G13/00—Falsework, forms, or shutterings for particular parts of buildings, e.g. stairs, steps, cornices, balconies foundations, sills
    • E04G13/04—Falsework, forms, or shutterings for particular parts of buildings, e.g. stairs, steps, cornices, balconies foundations, sills for lintels, beams, or transoms to be encased separately; Special tying or clamping means therefor
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G17/00—Connecting or other auxiliary members for forms, falsework structures, or shutterings
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G17/00—Connecting or other auxiliary members for forms, falsework structures, or shutterings
    • E04G17/06—Tying means; Spacers ; Devices for extracting or inserting wall ties
    • E04G17/065—Tying means, the tensional elements of which are threaded to enable their fastening or tensioning
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
    • E04G21/02—Conveying or working-up concrete or similar masses able to be heaped or cast
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
    • E04G21/12—Mounting of reinforcing inserts; Prestressing
    • E04G21/122—Machines for joining reinforcing bars
    • E04G21/123—Wire twisting tools

Abstract

The invention provides a prefabricated assembled column beam node core area and a construction method thereof.A support frame connecting cylinder is arranged on a segment support frame; the column side supporting plate is firmly connected with the assembled upright column through the column side hoops, and the spatial position of the assembled beam can be adjusted through the transverse position control bolt, the vertical position control body and the longitudinal position control body; the distance between the vertical plates is adjusted through the opposite supporting positioning bolts, and the positions of the stirrups of the vertical columns can be limited through the stirrup clamping grooves; a positioning baffle and a counter-pulling screw are arranged between the assembled cross beams, and a pull rod fastening bolt can be firmly connected with a column top anchor plate in the assembled upright column through a pull rod connecting groove and a bracing link; the longitudinal beam ribs are connected through the first sleeve and the second sleeve with the same height; and hooping clamping grooves and cross beam clamping grooves are respectively formed in the formwork cross beam and the cross beam hooping, and the positions of the templates in the core area are controlled through the template position control bolts. The invention can improve the construction efficiency, improve the stress performance of the node core area and reduce the field construction difficulty.

Description

Prefabricated assembled column beam node core area and construction method thereof
Technical Field
The invention relates to the field of constructional engineering, in particular to a prefabricated assembled column beam node core area capable of improving construction efficiency, node stress performance and connection strength and a construction method thereof, which are suitable for the assembled constructional engineering.
Background
The assembled building has the advantages of high construction efficiency, small pollution and the like, and is widely applied to civil engineering. When the prefabricated building is constructed, how to improve the stress performance of the prefabricated node, reduce the difficulty of connecting construction of the components and improve the construction efficiency of the site is always the key point and the difficulty of engineering control.
In the prior art, there is an assembled beam and assembled column connecting structure, wherein a column top reinforcing plate and a joint shock-absorbing layer are arranged on the top surface of a lower assembled column, and a vertical connecting rib is arranged on the column top reinforcing plate; presetting a beam bottom reinforcing plate at the joint of the lower surface of the assembly beam and the lower assembly column; a reinforcing corner plate, an interface bonding layer and a mortar protection layer are sequentially arranged in a reinforcing body layout groove at the joint of the upper surface of the assembly beam and the upper assembly column; a connecting steel plate is arranged between two adjacent sections of assembly beams; and filling post-pouring concrete in a gap at the intersection of the upper assembly column and the assembly beam, and arranging a transverse hoop plate and a vertical hoop plate. Although the technology can improve the stress property of the assembled beam column joints to a certain extent and reduce the difficulty of on-site assembly construction, the problems of accurate positioning of the assembled beam, convenient erection of a construction platform, accurate positioning of stirrups in a core area, collision connection of longitudinal ribs with the same elevation and the like are difficult to solve.
In view of this, in order to improve the construction quality of the prefabricated assembled column-beam node engineering and reduce the construction difficulty, it is currently needed to invent a prefabricated assembled column-beam node core area construction method capable of enhancing the bearing capacity of the node core area, improving the integrity of the structure and reducing the field construction difficulty.
Disclosure of Invention
The invention aims to provide a prefabricated column beam node core area which not only can enhance the effectiveness of node connection, but also can improve the bearing capacity of the node core area and the structural integrity, and a construction method thereof.
In order to achieve the technical purpose, the invention adopts the following technical scheme:
A construction method of a prefabricated assembled column beam node core area comprises the following construction steps:
1) And (3) preparation of construction: preparing an assembled upright post and an assembled cross beam; surveying to determine the plane position of the fabricated upright post, and installing the fabricated upright post; preparing materials and devices required by construction;
2) Laying a construction platform: the platform bottom plate is sequentially provided with segment supporting frames, the segment supporting frames connected up and down are connected through supporting frame connecting cylinders, and the platform bottom plate is connected with the segment supporting frames through supporting frame bottom connecting cylinders; a shifting roller is arranged at the lower part of the platform bottom plate, so that the platform fastening bolt is connected with the platform bottom plate through a screw hole, and a platform bottom supporting plate is arranged at the bottom end of the platform fastening bolt; the plate bottom connecting tenons on the lower surface of the platform top plate are connected with the supporting frame connecting cylinders on the lower part, and the platform guard rail is arranged on the platform top plate; a platform fastening rope is arranged between the platform top plate and the lower floor plate;
3) And (3) hoisting and positioning the assembled beam: the column side hoops are sleeved on the assembled column, and the column side supporting plates are firmly connected with the assembled column through the column side hoops; a vertical position control body and a supporting vertical plate are arranged on the upper surface of the column side supporting plate, and a girder falling limiting groove is arranged at the top end of the vertical position control body; the connecting bottom plates and the connecting pressing plates at the two ends of the position correcting baffle are respectively arranged at the lower part and the upper part of the assembled beam, and the connecting pressing plates are firmly connected with the assembled beam through beam fastening bolts; a longitudinal position control body is arranged between the position correction baffle and the support vertical plate; an external hoisting device is adopted to hoist the assembled beam to the beam falling limit groove, and beam end shear tenons at two ends of the assembled beam are respectively placed at the top ends of the assembled stand columns; firstly, adjusting the transverse position and the vertical elevation of the assembled beam through a transverse position control bolt and a vertical position control body respectively, and then adjusting the longitudinal position of the assembled beam through a longitudinal position control body;
4) The stirrup in the core area is arranged: the upright post reinforcement cage is formed by binding upright post longitudinal ribs and upright post stirrups; correcting the verticality and the spatial position of a vertical rib of an extension section of the assembled upright post; determining the distance between stirrup clamping grooves on the vertical plates according to the vertical distance between the stirrups of the vertical columns, firstly adjusting the distance between the two vertical plates opposite to each other in a mirror image manner through opposite supporting positioning bolts, embedding the stirrups of the vertical columns into the stirrup clamping grooves, and limiting the positions of the stirrups of the vertical columns through clamping groove bottom plates and clamping groove pressing plates respectively; firstly inserting a counter-pulling screw connected with a pull rod embedding plate into a gap of a column stirrup, then inserting a vertical plate and the column stirrup into a gap of an assembled beam, inserting the pull rod embedding plate and the counter-pulling screw into a pull rod connecting groove, and firmly connecting a column longitudinal bar with the column stirrup;
5) And (3) connecting the assembled cross beams: firstly, connecting the bottom end of a rib supporting connecting rod with a column top connecting bolt, arranging a pull rod connecting groove at the top end of the rib supporting connecting rod, applying fastening tension to a pull screw rod through a pull rod fastening bolt, and firmly connecting the pull rod fastening bolt at the lower layer with the pull rod connecting groove; vertically welding second sleeves on two sides of a first sleeve of the steel bar connector, and enabling beam longitudinal ribs of two vertically connected assembly type beams to be respectively inserted into the first sleeve and the second sleeve; grouting a slurry connector into the first sleeve and the second sleeve through sleeve grouting holes, and firmly connecting the sleeve reinforcing ribs with the longitudinal ribs of the cross beam; grouting a gap between the pull rod embedding plate and the pull rod connecting groove to form a slurry-solid filling body;
6) And (3) core area concrete pouring construction: firstly, arranging a formwork transverse strut above an assembled transverse beam, respectively arranging a stirrup clamping groove and a transverse strut clamping groove on transverse beam stirrups at the upper parts of the formwork transverse strut and the assembled transverse beam, and arranging a clamping groove connecting bolt between the stirrup clamping groove and the transverse strut clamping groove; a formwork vertical plate and a formwork position control bolt are sequentially arranged on the side, facing the assembled upright post, of the formwork transverse support, and a position control bolt connecting plate at the other end of the formwork position control bolt is connected with a formwork positioning groove on the side surface of the core area formwork; the position of the transverse support of the formwork is controlled by the clamping groove connecting bolt, the position of the formwork of the core area is controlled by the formwork position control bolt, and then the concrete pouring construction of the core area is carried out.
Compared with the prior art, the technical scheme has the following characteristics and beneficial effects:
(1) According to the invention, the support frame connecting cylinder is arranged on the segment support frame, so that the laying efficiency of the construction platform and the connection strength of the segment support frame can be effectively improved; meanwhile, the platform fastening rope is arranged between the platform top plate and the lower floor plate, and the platform fastening rope and the platform bottom plate which are connected with the lower floor plate are arranged on the platform bottom plate, so that the stability of the supporting platform can be effectively improved.
(2) According to the invention, the column side supporting plate is firmly connected with the assembled upright post through the column side hoops, so that the difficulty in erecting the girder dropping platform can be effectively reduced, and the engineering measure cost is saved; meanwhile, the transverse position and the vertical elevation of the assembled beam are respectively adjusted through the transverse position control bolt and the vertical position control body, and the longitudinal position of the assembled beam is adjusted through the longitudinal position control body, so that the three-way fixation of the assembled beam is realized.
(3) According to the invention, the distance between the two opposite vertical plates of the mirror image is adjusted by the opposite supporting positioning bolts, and the positions of the upright column stirrups can be limited by the clamping groove bottom plates and the clamping groove pressing plates of the stirrups, so that synchronous suspension positioning of multiple upright column stirrups is realized, and the difficulty in installing and positioning stirrups in a core area is reduced.
(4) According to the invention, the positioning baffle plate and the opposite pull screw rod are arranged between the opposite assembly type cross beams, the pull rod fastening bolt can apply fastening tension to the assembly type cross beams, and the pull rod fastening bolt is firmly connected with the column top anchor plate in the assembly type upright column through the pull rod connecting groove and the support bar connecting rod, so that the connection strength of the assembly type cross beams and the assembly type upright column is improved; meanwhile, the beam longitudinal rib connection is carried out through the first sleeve and the second sleeve which are the same in height, so that the problem of beam longitudinal rib collision optimization of the assembled beam is solved.
(5) According to the invention, the stirrup clamping grooves and the transverse strut clamping grooves are respectively arranged on the transverse beam stirrups at the upper parts of the formwork transverse strut and the assembled transverse beam, the positions of the formwork transverse strut are controlled through the clamping groove connecting bolts, the positions of the core area templates are controlled through the template position control bolts, and then the core area concrete pouring construction is carried out, so that the difficulty of the core area concrete pouring construction is reduced.
Drawings
FIG. 1 is a construction flow chart of a construction method of a prefabricated column-beam joint core area of the invention;
FIG. 2 is a schematic view of the construction structure of the beam column core area of the prefabricated frame structure of FIG. 1;
FIG. 3 is a schematic plan view of the overall arrangement of stirrups in the core area of FIG. 1;
FIG. 4 is a schematic elevation view of the overall arrangement of stirrups in the core area of FIG. 3;
fig. 5 is a schematic view of a connection structure of the reinforcing steel bar connector and the longitudinal bar of the cross beam of fig. 2;
Fig. 6 is a concrete pouring construction of the core area of fig. 1.
In the figure: 1-an assembled upright; 2-an assembled beam; 3-a platform floor; 4-segment strut; 5-a bracket connecting cylinder; 6-shifting the roller; 7-a platform fastening bolt; 8-a platform bottom support plate; 9-a platform top plate; 10-a platform guard rail; 11-lower floor boards; 12-a platform securing cable; 13-column side cuffs; 14-column side support plates; 15-a vertical position control body; 16-supporting the vertical plate; 17-a beam falling limiting groove; 18-connecting the bottom plate; 19-connecting a pressing plate; 20-a beam fastening bolt; 21-a positioning baffle; 22-longitudinal position control body; 23-supporting a frame bottom connecting cylinder; 24-upright column longitudinal ribs; 25-column stirrups; 26-vertical plates; 27-hooping clamping grooves; 28-a pair of support positioning bolts; 29-a clamping groove bottom plate; 30-clamping groove pressing plates; 31-a tie rod setting plate; 32-a split screw; 33-a tie rod attachment slot; 34-bracing connecting rods; 35-a column top connecting bolt; 36-a tie-bar securing bolt; 37-rebar junctions; 38-a first sleeve; 39-a second sleeve; 40-sleeve grouting holes; 41-grouting connector; 42-sleeve reinforcing ribs; 43-a transverse beam longitudinal rib; 44-slurry-solid filler; 45-formwork transverse bracing; 46-beam stirrups; 47-a cross brace clamping groove; 48-a clamping groove connecting bolt; 49-formwork vertical plates; 50-a template position control bolt; 51-a position control bolt connecting plate; 52-core template; 53-a template positioning groove; 54-core area concrete; 55-column top anchor plate; 56-bracing the pole setting; 57-bracing a transverse tube; 58-bracing a strut; 59-a transverse position control bolt; 60-beam end shear tenons; 61-a template sealing belt; 62-plate bottom connecting tenons; 63-column reinforcement cage.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which are derived by a person skilled in the art based on the embodiments of the invention, fall within the scope of protection of the invention.
It will be appreciated by those skilled in the art that in the present disclosure, the terms "longitudinal," "transverse," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," etc. refer to an orientation or positional relationship based on that shown in the drawings, which is merely for convenience of description and to simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore the above terms should not be construed as limiting the present invention.
It will be understood that the terms "a" and "an" should be interpreted as referring to "at least one" or "one or more," i.e., in one embodiment, the number of elements may be one, while in another embodiment, the number of elements may be plural, and the term "a" should not be interpreted as limiting the number.
The construction technology of the prefabricated column beam node core area requires concrete pouring construction technology, formwork support construction technology, section steel rolling and welding construction technology, bolt fastening construction technology and the like, and is not repeated in the embodiment, and the embodiment of the method is mainly described.
Fig. 1 is a construction flow chart of a prefabricated column-beam joint core area, and referring to fig. 1, the construction method of the prefabricated column-beam joint core area comprises the following construction steps:
1) And (3) preparation of construction: preparing an assembled upright post (1) and an assembled cross beam (2); determining the plane position of the fabricated upright (1) by surveying, and installing the fabricated upright (1); preparing materials and devices required by construction;
2) Laying a construction platform: a plurality of sections of section supporting frames (4) are sequentially arranged on the platform bottom plate (3), a shifting roller (6) is arranged at the lower part of the platform bottom plate (3), a platform fastening bolt (7) penetrates through the platform bottom plate (3), a platform supporting plate (8) is arranged at the bottom end of the platform fastening bolt (7), and the platform supporting plate (8) is arranged on a lower floor plate (11); the platform top plate (9) is fixed at the top of the segment supporting frame (4) at the top, a platform guardrail (10) is arranged on the platform top plate (9), and a platform fastening rope (12) is arranged between the platform top plate (9) and the lower floor plate (11);
The upper and lower connected segment brackets (4) are connected through bracket connecting cylinders (5), and the platform bottom plate (3) is connected with the segment brackets (4) through bracket bottom connecting cylinders (23). That is, the bottommost segment strut (4) is connected to the platform floor (3) by a strut bottom connecting tube (23) interposed on the platform floor (3). The platform fastening bolt (7) is connected with the platform bottom plate (3) through screw holes, and a platform bottom supporting plate (8) is arranged at the bottom end of the platform fastening bolt (7). It should be noted that when the platform fastening bolts (7) are fixed on the platform bottom support plate (8), the displacement rollers (6) are arranged away from the lower floor plate (11). The plate bottom connecting tenon (62) on the lower surface of the platform top plate (9) is connected with the lower support frame connecting cylinder (5).
The platform fastening ropes (12) which are respectively arranged at the two sides of the segment supporting frame (4) are in an eight shape so as to connect the platform top plate (9) with the lower floor plate (11).
3) And (3) hoisting and positioning the assembled beam: a column side hoop (13) is sleeved on the assembled column (1), and a column side supporting plate (14) is connected with the assembled column (1) through the column side hoop (13); a vertical position control body (15) and a supporting vertical plate (16) are arranged on the upper surface of the column side supporting plate (14), and a girder falling limiting groove (17) is arranged at the top end of the vertical position control body (15); the connecting bottom plates (18) and the connecting pressing plates (19) at two ends of the position correcting baffle plate (21) are respectively arranged at the lower part and the upper part of the assembled beam (2), the connecting pressing plates (19) are firmly connected with the assembled beam (2), and a longitudinal position control body (22) is arranged between the position correcting baffle plate (21) and the supporting vertical plate (16); an external hoisting device is adopted to hoist the assembled beam (2) to the beam falling limit groove (17), and beam end shear tenons (60) at two ends of the assembled beam (2) are respectively placed at the top ends of the assembled upright columns (1); firstly, adjusting the transverse position and the vertical elevation of the assembled beam (2) through a transverse position control bolt (59) and a vertical position control body (15) on a falling beam limiting groove (17), and then adjusting the longitudinal position of the assembled beam (2) through a longitudinal position control body (22);
The column side supporting plates (14) are arranged on two sides of the assembled stand column (1), one side of each column side supporting plate (14) is arranged between the column side hoop (13) and the assembled stand column (1) to be fastened, and the other side of each column side supporting plate is perpendicular to the assembled stand column (1) and is arranged on two sides of the assembled stand column (1) in a separated mode. The connecting pressing plate (19) is firmly connected with the assembled beam (2) through the beam fastening bolt (20).
4) The stirrup in the core area is arranged: the upright post reinforcement cage (63) is formed by binding upright post longitudinal ribs (24) and upright post stirrups (25), and the verticality and the spatial position of an extension section of the assembled upright post (1) relative to the upright post longitudinal ribs (24) are corrected; determining the distance between stirrup clamping grooves (27) on vertical plates (26) according to the vertical distance between the vertical stirrups (25), adjusting the distance between the two mirror-image vertical plates (26) opposite to each other through opposite supporting positioning bolts (28), embedding the vertical stirrups (25) into the stirrup clamping grooves (27), and limiting the positions of the vertical stirrups (25) through clamping groove bottom plates (29) and clamping groove pressing plates (30); firstly, inserting a counter-pulling screw (32) connected with a pull rod embedding plate (31) into a gap of a column stirrup (25), then inserting a vertical plate (26) and the column stirrup (25) into a gap of an assembled beam (2), inserting the pull rod embedding plate (31) and the counter-pulling screw (32) into a pull rod connecting groove (33) of a support bar connecting rod (34), and firmly connecting a column longitudinal bar (24) with the column stirrup (25);
At least two stand column longitudinal ribs (24) are arranged at intervals and wrapped on the side of the assembled stand column (1), at least two stand column stirrups (25) are arranged at intervals in parallel, and the stand column longitudinal ribs (24) and the stand column stirrups (25) are arranged in a staggered mode.
The vertical plate (26) is perpendicular to the upright column stirrup (25), and the stirrup clamping groove (27) is arranged on the vertical plate (26). The clamping groove bottom plate (29) and the clamping groove pressing plate (30) are respectively arranged at the upper side and the lower side of the upright column stirrup (25) to limit the position of the upright column stirrup (25).
5) And (3) connecting the assembled cross beams: firstly, the bottom end of a rib supporting connecting rod (34) is connected with a column top connecting bolt (35) at the top of an assembled column (1), a pull rod connecting groove (33) is formed in the top end of the rib supporting connecting rod (34), fastening tension is applied to a counter-pulling screw rod (32) through a pull rod fastening bolt (36), and then the lower-layer pull rod fastening bolt (36) is firmly connected with the pull rod connecting groove (33); the two sides of a first sleeve (38) of the steel bar connecting body (37) are vertically welded with a second sleeve (39), and a beam longitudinal rib (43) of the two vertically connected assembled beams (2) is respectively inserted into the first sleeve (38) and the second sleeve (39); grouting a slurry connecting body (41) into the first sleeve (38) and the second sleeve (39) through sleeve grouting holes (40) on the first sleeve (38) and the second sleeve (39), and firmly connecting sleeve reinforcing ribs (42) with transverse beam longitudinal ribs (43); grouting gaps between the pull rod embedding plates (31) and the pull rod connecting grooves (33) on two sides of the opposite-pull screw rods (32) to form slurry-solid filling bodies (44);
6) And (3) core area concrete pouring construction: firstly, arranging a formwork transverse strut (45) above an assembled transverse beam (2), respectively arranging a stirrup clamping groove (27) and a transverse strut clamping groove (47) on a transverse beam stirrup (46) at the upper part of the formwork transverse strut (45) and the assembled transverse beam (2), and arranging a clamping groove connecting bolt (48) between the stirrup clamping groove (27) and the transverse strut clamping groove (47); a formwork vertical plate (49) and a formwork position control bolt (50) are sequentially arranged on the side, facing the assembled upright post (1), of the formwork transverse support (45), and a position control bolt connecting plate (51) at the other end of the formwork position control bolt (50) is connected with a formwork positioning groove (53) on the side surface of a core area formwork (52); the position of the supporting form transverse support (45) is controlled through the clamping groove connecting bolt (48), the position of the core area template (52) is controlled through the template position control bolt (50), and then the core area concrete (54) pouring construction is carried out.
The method comprises the following steps that 1) the assembled stand column (1) is made of reinforced concrete materials, and a column top anchor plate (55) and a column top connecting bolt (35) are preset at the top of the assembled stand column (1); the column top connecting bolt (35) adopts a nut or a grouting sleeve, and the bottom end of the column top connecting bolt is welded with the column top anchor plate (55).
The step 2) is that the segment support (4) comprises a support upright (56), a support transverse pipe (57) and a support diagonal (58), which are all formed by rolling steel pipes, the support upright (56), the support transverse pipe (57) and the support diagonal (58) which are connected through welding, and a support connecting cylinder (5) is arranged at the top end of the support upright (56); the inner diameter of the support frame connecting cylinder (5) is the same as the outer diameter of the support frame upright rod (56). The support upright posts (56) are vertically arranged on two sides, the support transverse pipes (57) are vertically connected with the support upright posts (56) on two sides, and the support diagonal braces (58) are obliquely connected with the support upright posts (56) on two sides.
Step 3), the vertical position control body (15) adopts a hydraulic jack; the beam falling limiting groove (17) is formed by rolling a steel plate, the cross section of the beam falling limiting groove is U-shaped, and a vertical plate of the beam falling limiting groove (17) is provided with a screw hole connected with a transverse position control bolt (59); the vertical position control body (15) and the longitudinal position control body (22) are hydraulic jacks; the connecting bottom plate (18), the connecting pressing plate (19) and the position correcting baffle (21) are formed by rolling steel plates, two ends of the position correcting baffle (21) are respectively and vertically welded with the connecting bottom plate (18) and the connecting pressing plate (19), and screw holes connected with the beam fastening bolts (20) are preset on the connecting pressing plate (19).
The opposite supporting positioning bolt (28) comprises a screw rod and a nut, the fastening directions of the screw rods at the two sides of the nut are opposite, and the two ends of the opposite supporting positioning bolt are vertically welded with the vertical plates (26); the stirrup clamping groove (27) comprises a clamping groove bottom plate (29) and a clamping groove pressing plate (30), and the clamping groove bottom plate (29) and the clamping groove pressing plate (30) are respectively and vertically welded with the vertical plate (26); the upper surface of the clamping groove bottom plate (29) is preset with a groove connected with the upright column stirrup (25), and the clamping groove pressing plate (30) adopts a rigid elastic sheet.
Step 5) the first sleeve (38) and the second sleeve (39) are grouting sleeves, and the second sleeve (39) is vertically welded on two sides of the first sleeve (38); opposite-pull screw rods (32) on two sides of the pull rod fastening bolts (36) are fastened in opposite directions and are welded with the pull rod connecting grooves (33); the slurry-solid filling body (44) adopts grouting material or self-compacting concrete.
Step 6), the stirrup clamping groove (27) and the transverse support clamping groove (47) are formed by rolling steel plates, the transverse section is U-shaped, and the side wall is welded and connected with the clamping groove connecting bolt (48); the clamping groove connecting bolt (48) comprises a screw rod and a nut, and the fastening directions of the screw rods at the two sides of the nut are opposite; the core area template (52) adopts a steel die or an alloy die, the cross section is L-shaped, and a die sealing belt (61) is arranged at the joint of the core area template and the assembled beam (2); the template positioning groove (53) is formed by rolling a steel plate and is welded with the core area template (52), and a channel connected with the position control bolt connecting plate (51) is arranged on the template positioning groove (53).
Fig. 2 is a schematic view of a construction structure of a beam column core area of the prefabricated frame structure of fig. 1, fig. 3 is a schematic plan view of a stirrup integral laying device of the core area of fig. 1, fig. 4 is a schematic elevation view of the stirrup integral laying device of the core area of fig. 3, fig. 5 is a schematic view of a connection structure of a reinforcing steel bar connector and a longitudinal beam rib of the beam of fig. 2, and fig. 6 is a concrete pouring construction of the core area of fig. 1. Referring to fig. 2 to 6, in the construction method of the prefabricated assembled column beam node core area, a column side supporting plate (14) is firmly connected with an assembled column (1) through a column side hoop (13), and the space position of an assembled beam (2) can be adjusted through a transverse position control bolt (59), a vertical position control body (15) and a longitudinal position control body (22); the distance between the vertical plates (26) is adjusted through the opposite supporting positioning bolts (28), and the positions of the vertical column stirrups (25) can be limited through the stirrup clamping grooves (27); a positioning baffle (21) and a counter-pulling screw (32) are arranged between the assembled cross beams (2), and a pull rod fastening bolt (36) can be firmly connected with a column top anchor plate (55) in the assembled upright column (1) through a pull rod connecting groove (33) and a bracing connecting rod (34); the longitudinal beam ribs (43) are connected through the first sleeve (38) and the second sleeve (39) with the same height; the formwork transverse strut (45) and the transverse strut stirrup (46) are respectively provided with a stirrup clamping groove (27) and a transverse strut clamping groove (47), and the position of the core area formwork (52) is controlled through the formwork position control bolt (50).
The assembled upright post (1) is made of reinforced concrete, the strength grade of the concrete is C35, and the cross dimension is 400 multiplied by 400mm; a column top anchor plate (55) and a column top connecting bolt (35) are preset at the top of the assembled column (1). The column top anchor plate (55) is formed by rolling a steel plate with the thickness of 10mm, has the diameter of 250mm and is welded with the column top connecting bolt (35).
The column top connecting bolt (35) adopts a nut with the screw hole diameter of 30mm and the height of 6cm, and the bottom end is welded with the column top anchor plate (55).
The column top anchor plate (55) is formed by rolling a steel plate with the thickness of 2 mm.
The assembled beam (2) is made of reinforced concrete materials with the strength grade of C35, and is rectangular in cross section, 25cm in width and 50cm in height.
The platform bottom plate (3) is formed by rolling a steel plate with the thickness of 10mm, and the plane size is 1500 multiplied by 1500mm.
The section support (4) comprises a support upright (56), a support transverse pipe (57) and a support diagonal brace (58), all are formed by rolling steel pipes with the outer diameter of 60mm, the support upright (56), the support transverse pipe (57) and the support diagonal brace (58) which are connected through welding, and a support connecting cylinder (5) is arranged at the top end of the support upright (56).
The bracket connecting cylinder (5) is formed by rolling a steel plate with the thickness of 10mm, and the inner diameter is the same as the outer diameter of the bracket upright rod (56).
The shifting roller (6) is a six-inch stainless steel roller.
The platform fastening bolt (7) is formed by rolling a screw rod with the diameter of 60 mm.
The platform bottom supporting plate (8) is formed by rolling a steel plate with the thickness of 10mm, and the diameter is 100mm.
The platform top plate (9) is formed by rolling a steel plate with the thickness of 3 mm.
The platform guardrail (10) adopts a temporary safety fence to move and isolate a guardrail net, and the height is 60cm.
The lower floor board (11) is made of reinforced concrete material with the strength grade of C35, and the thickness is 100mm.
The platform fastening rope (12) adopts a steel wire rope with the diameter of 20 mm.
The column-side ferrule (13) is formed by rolling a steel plate with a thickness of 3mm.
The column side support plates (14) are formed by rolling steel plates with the thickness of 10mm, and the width is 30cm.
The vertical position control body (15) adopts a hydraulic jack with the stroke of 20 cm.
The supporting vertical plate (16) is formed by rolling a steel plate with the thickness of 20mm, and the width of 20cm is vertically welded with the column side supporting plate (14).
The beam falling limiting groove (17) is formed by rolling a steel plate with the thickness of 10mm, the cross section of the beam falling limiting groove is U-shaped, and a vertical plate of the beam falling limiting groove (17) is provided with a screw hole connected with a transverse position control bolt (59).
The transverse position control bolt (59) is formed by rolling a screw rod with the diameter of 30 mm.
The connecting bottom plate (18), the connecting pressing plate (19) and the position correcting baffle (21) are formed by rolling steel plates with the thickness of 10mm, two ends of the position correcting baffle (21) are respectively and vertically welded with the connecting bottom plate (18) and the connecting baffle, and screw holes connected with the beam fastening bolts (20) are preset on the connecting pressing plate (19).
The beam fastening bolt (20) is composed of a high-strength screw rod with the diameter of 30mm and a bolt.
The longitudinal calibration bodies (22) are all hydraulic jacks.
The bracket bottom connecting cylinder (23) is rolled into a concave shape by adopting a steel plate with the thickness of 10mm and is welded with the segment bracket (4).
The vertical column longitudinal ribs (24) are threaded ribbed steel bars with the diameter of 25 mm.
The upright column stirrup (25) adopts a threaded steel bar with the diameter of 8 mm.
The opposite supporting positioning bolt (28) comprises a screw rod with the diameter of 30mm and a nut, the fastening directions of the screw rods at the two sides of the nut are opposite, and the two ends of the opposite supporting positioning bolt are vertically welded with the vertical plates (26).
The vertical plate (26) is formed by rolling a steel plate with the thickness of 10mm, and the width is 5cm.
The stirrup clamping groove (27) comprises a clamping groove bottom plate (29) and a clamping groove pressing plate (30), and the clamping groove bottom plate (29) and the clamping groove pressing plate (30) are respectively and vertically welded with the vertical plate (26); the clamping groove bottom plate (29) adopts a groove channel with the thickness of 10mm, which is preset on the upper surface of the clamping groove bottom plate (29) and is connected with the upright column stirrup (25); the clamping groove pressing plate (30) adopts a 301 stainless steel spring plate.
The transverse support clamping groove (47) is formed by rolling a steel plate with the thickness of 10mm, the transverse section is U-shaped, and the side wall is welded with the clamping groove connecting bolt (48).
The clamping groove connecting bolt (48) is composed of a screw rod with the diameter of 30mm and a nut, and the fastening directions of the screw rods at the two sides of the nut are opposite.
The pull rod embedding plate (31) is rolled by a steel plate with the thickness of 10mm and the width of 8cm.
The counter-pulling screw (32) is a screw comprising a diameter of 30 mm. Opposite tightening directions of opposite tightening screws (32) at two sides of the pull rod tightening bolts (36) are welded with the pull rod connecting grooves (33).
The pull rod connecting groove (33) is formed by rolling a steel plate with the thickness of 10mm, and the groove depth is 1.5cm.
The rib supporting connecting rod (34) is formed by rolling a screw rod with the diameter of 30 mm.
The steel bar connecting body (37) comprises a first sleeve (38) and a second sleeve (39), grouting sleeves matched with the longitudinal ribs (43) of the cross beam are adopted, and the second sleeve (39) is vertically welded on two sides of the first sleeve (38).
The sleeve grouting holes (40) are steel pipes with the diameter of 20 mm.
The grouting connector (41) adopts epoxy resin grouting.
The sleeve reinforcing rib (42) is formed by rolling a steel plate with the thickness of 10mm, and the width is 2cm.
The longitudinal beam ribs (43) are threaded ribbed steel bars with the diameter of 25 mm.
The slurry-solid filler (44) is self-compacting concrete with a strength grade of C50.
The formwork transverse strut (45) is formed by rolling a steel plate with the thickness of 10mm, and the width is 10cm.
The beam stirrup (46) adopts a threaded steel bar with the diameter of 8 mm.
The formwork vertical plate (49) is formed by rolling a steel plate with the thickness of 10mm, and the width is 5cm.
The template position control bolt (50) is composed of a high-strength screw rod with the diameter of 30mm and a bolt, and the fastening directions of the screw rods at the two sides of the bolt are opposite.
The position control bolt connecting plate (51) adopts a steel plate with the thickness of 10mm and the width of 40mm.
The core area template (52) adopts an alloy template with the thickness of 4mm, the cross section is L-shaped, and a template sealing belt (61) is arranged at the joint of the core area template and the assembled beam (2).
The template sealing belt (61) is formed by cutting a rubber sheet with the thickness of 2 mm.
The template positioning groove (53) is formed by rolling a steel plate with the thickness of 2mm, is welded with the core area template (52), and is provided with a channel connected with the position control bolt connecting plate (51).
The core area concrete (54) is self-compacting concrete with a strength grade of C50.
The transverse position control bolt (59) is formed by rolling a screw rod with the diameter of 30 mm.
The cross section of the beam end shear tenon (60) is in an isosceles trapezoid shape, and the height is 5cm and the top width is 10cm.
The plate bottom connecting tenon (62) adopts a steel pipe with the outer diameter of 60 mm.
The upright post reinforcement cage (63) is formed by binding upright post longitudinal ribs (24) and upright post stirrups (25).
The present application is not limited to the above-mentioned preferred embodiments, and any person who can obtain other various products under the teaching of the present application can make any changes in shape or structure, and all the technical solutions that are the same or similar to the present application fall within the scope of the present application.

Claims (7)

1. The construction method of the prefabricated column-beam joint core area is characterized by comprising the following steps of:
1) And (3) preparation of construction: preparing an assembled upright post (1) and an assembled cross beam (2); determining the plane position of the fabricated upright (1) by surveying, and installing the fabricated upright (1); preparing materials and devices required by construction;
2) Laying a construction platform: a plurality of sections of section supporting frames (4) are sequentially arranged on the platform bottom plate (3), a shifting roller (6) is arranged at the lower part of the platform bottom plate (3), a platform fastening bolt (7) penetrates through the platform bottom plate (3), a platform supporting plate (8) is arranged at the bottom end of the platform fastening bolt (7), and the platform supporting plate (8) is arranged on a lower floor plate (11); the platform top plate (9) is fixed at the top of the segment supporting frame (4) at the top, the platform top plate (9) is provided with a platform guardrail (10), a platform fastening rope (12) is arranged between the platform top plate (9) and the lower floor plate (11), the segment supporting frame (4) comprises supporting frame vertical rods (56), supporting frame transverse pipes (57) and supporting frame diagonal braces (58), the supporting frame vertical rods (56) are vertically arranged at two sides, the supporting frame transverse pipes (57) are vertically connected with the supporting frame vertical rods (56) at two sides, the supporting frame diagonal braces (58) are obliquely connected with the supporting frame vertical rods (56) at two sides, the upper and lower connected segment supporting frames (4) are connected through supporting frame connecting cylinders (5), the platform bottom plate (3) is connected with the segment supporting frames (4) through supporting frame bottom connecting cylinders (23), and plate bottom connecting tenons (62) on the lower surface of the platform top plate (9) are connected with the supporting frame connecting cylinders (5) at the lower part;
3) And (3) hoisting and positioning the assembled beam: a column side hoop (13) is sleeved on the assembled column (1), and a column side supporting plate (14) is connected with the assembled column (1) through the column side hoop (13); a vertical position control body (15) and a supporting vertical plate (16) are arranged on the upper surface of the column side supporting plate (14), and a girder falling limiting groove (17) is arranged at the top end of the vertical position control body (15); the connecting bottom plates (18) and the connecting pressing plates (19) at two ends of the position correcting baffle plate (21) are respectively arranged at the lower part and the upper part of the assembled beam (2), the connecting pressing plates (19) are firmly connected with the assembled beam (2), and a longitudinal position control body (22) is arranged between the position correcting baffle plate (21) and the supporting vertical plate (16); an external hoisting device is adopted to hoist the assembled beam (2) to the beam falling limit groove (17), and beam end shear tenons (60) at two ends of the assembled beam (2) are respectively placed at the top ends of the assembled upright columns (1); firstly, adjusting the transverse position and the vertical elevation of the assembled beam (2) through a transverse position control bolt (59) and a vertical position control body (15) on a falling beam limiting groove (17), and then adjusting the longitudinal position of the assembled beam (2) through a longitudinal position control body (22);
4) The stirrup in the core area is arranged: the upright post reinforcement cage (63) is formed by binding upright post longitudinal ribs (24) and upright post stirrups (25), and the verticality and the spatial position of an extension section of the assembled upright post (1) relative to the upright post longitudinal ribs (24) are corrected; determining the distance between stirrup clamping grooves (27) on vertical plates (26) according to the vertical distance between the vertical stirrups (25), firstly adjusting the distance between the two vertical plates (26) through opposite supporting positioning bolts (28), then embedding the vertical stirrups (25) into the stirrup clamping grooves (27), and limiting the positions of the vertical stirrups (25) through clamping groove bottom plates (29) and clamping groove pressing plates (30); firstly, a counter-pulling screw rod (32) connected with a pull rod embedding plate (31) is inserted into a gap of a column stirrup (25), then a vertical plate (26) and the column stirrup (25) are inserted into a gap of an assembled beam (2), the pull rod embedding plate (31) and the counter-pulling screw rod (32) are inserted into a pull rod connecting groove (33) of a support bar connecting rod (34), the column longitudinal bar (24) and the column stirrup (25) are firmly connected, wherein the counter-supporting positioning bolt (28) comprises a screw rod and a nut, and the fastening directions of the screw rods at two sides of the nut are opposite, the two ends of the hooping clamping groove (27) are vertically welded with the vertical plate (26), the hooping clamping groove comprises a clamping groove bottom plate (29) and a clamping groove pressing plate (30), the clamping groove bottom plate (29) and the clamping groove pressing plate (30) are respectively vertically welded with the vertical plate (26), the clamping groove bottom plate (29) and the clamping groove pressing plate (30) are respectively arranged at the upper side and the lower side of the upright hooping (25) to limit the position of the upright hooping (25), a groove channel connected with the upright hooping (25) is preset on the upper surface of the clamping groove bottom plate (29), and the clamping groove pressing plate (30) adopts a rigid elastic sheet;
5) And (3) connecting the assembled cross beams: firstly, the bottom end of the rib supporting connecting rod (34) is connected with a column top connecting bolt (35) at the top of the assembled column (1), a pull rod connecting groove (33) is arranged at the top end of the rib supporting connecting rod (34),
Then, a tightening pulling force is applied to the counter-pulling screw rod (32) through the pulling rod tightening bolt (36), and then, the pulling rod tightening bolt (36) at the lower layer is firmly connected with the pulling rod connecting groove (33); the two sides of a first sleeve (38) of the steel bar connecting body (37) are vertically welded with a second sleeve (39), and a beam longitudinal rib (43) of the two vertically connected assembled beams (2) is respectively inserted into the first sleeve (38) and the second sleeve (39); grouting a slurry connecting body (41) into the first sleeve (38) and the second sleeve (39) through sleeve grouting holes (40) on the first sleeve (38) and the second sleeve (39), and firmly connecting sleeve reinforcing ribs (42) with transverse beam longitudinal ribs (43); grouting gaps between the pull rod embedding plates (31) and the pull rod connecting grooves (33) on two sides of the opposite-pull screw rods (32) to form slurry-solid filling bodies (44);
6) And (3) core area concrete pouring construction: firstly, arranging a formwork transverse strut (45) above an assembled transverse beam (2), respectively arranging a stirrup clamping groove (27) and a transverse strut clamping groove (47) on a transverse beam stirrup (46) at the upper part of the formwork transverse strut (45) and the assembled transverse beam (2), and arranging a clamping groove connecting bolt (48) between the stirrup clamping groove (27) and the transverse strut clamping groove (47); a formwork vertical plate (49) and a formwork position control bolt (50) are sequentially arranged on the side, facing the assembled upright post (1), of the formwork transverse support (45), and a position control bolt connecting plate (51) at the other end of the formwork position control bolt (50) is connected with a formwork positioning groove (53) on the side surface of a core area formwork (52); the position of the supporting form transverse support (45) is controlled through the clamping groove connecting bolt (48), the position of the core area template (52) is controlled through the template position control bolt (50), and then the core area concrete (54) pouring construction is carried out.
2. The construction method of the prefabricated assembled beam node core area according to claim 1, wherein the column side supporting plates (14) are arranged on two sides of the assembled column (1), one side of the column side supporting plates (14) is arranged between the column side hoops (13) and the assembled column (1) to be fastened, and the other side is perpendicular to the assembled column (1) and is arranged on two sides of the assembled column (1) separately.
3. The construction method of the prefabricated column-beam joint core area according to claim 1, wherein a column top anchor plate (55) and a column top connecting bolt (35) are preset at the top of the fabricated column (1), and the bottom end of the column top connecting bolt (35) is connected with the column top anchor plate (55).
4. The construction method of the prefabricated column-beam joint core area according to claim 1, wherein the second sleeve (39) is perpendicular to the two sides of the first sleeve (38), and the fastening directions of the opposite pull screws (32) on the two sides of the pull rod fastening bolt (36) are opposite.
5. The construction method of the prefabricated column-beam joint core area according to claim 1, wherein the cross sections of the stirrup clamping groove (27) and the transverse bracing clamping groove (47) are U-shaped, and the side wall is connected with the clamping groove connecting bolt (48).
6. The construction method of the prefabricated column-beam joint core area according to claim 1, wherein the platform fastening cables (12) respectively arranged at two sides of the segment strut (4) are in an eight shape.
7. A prefabricated column-beam joint core area, characterized in that it is constructed by the construction method of the prefabricated column-beam joint core area according to any one of claims 1 to 6.
CN202210139010.8A 2022-02-15 2022-02-15 Prefabricated assembled column beam node core area and construction method thereof Active CN114508172B (en)

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CN112252167A (en) * 2020-10-14 2021-01-22 浙江世润建创科技发展有限公司 Bridge capping beam and construction method
CN214005382U (en) * 2020-10-14 2021-08-20 浙江世润建创科技发展有限公司 Bridge bent cap staple bolt formwork system
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20060098555A (en) * 2005-03-03 2006-09-19 한밭대학교 산학협력단 Connection system with headed reinforcements for precast concrete beam-column joint
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