CN107288218B - Beam column node of assembled reinforced concrete frame structure and manufacturing method thereof - Google Patents
Beam column node of assembled reinforced concrete frame structure and manufacturing method thereof Download PDFInfo
- Publication number
- CN107288218B CN107288218B CN201710696728.6A CN201710696728A CN107288218B CN 107288218 B CN107288218 B CN 107288218B CN 201710696728 A CN201710696728 A CN 201710696728A CN 107288218 B CN107288218 B CN 107288218B
- Authority
- CN
- China
- Prior art keywords
- column
- frame
- node
- prefabricated frame
- prefabricated
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Mechanical Engineering (AREA)
- Conveying And Assembling Of Building Elements In Situ (AREA)
- Rod-Shaped Construction Members (AREA)
Abstract
The utility model relates to a beam column node of an assembled reinforced concrete frame structure and a manufacturing method thereof, belonging to the technical field of building materials and building construction. The utility model provides a beam column node of an assembled reinforced concrete frame structure, which consists of a splicing node (13) of a prefabricated frame column (11) and a prefabricated frame beam (12) and cast-in-place concrete (14); column longitudinal ribs (131) in the prefabricated frame column (11) extend out of the top of the column to form column top reserved longitudinal ribs (1311); a plurality of node column stirrups (132) are arranged along the periphery of the column top reserved longitudinal ribs (1311) and are bound with the column top reserved longitudinal ribs (1311); the prefabricated frame beams (12) are spliced at the tops of the prefabricated frame columns (11), beam bottom longitudinal ribs (133) in the prefabricated frame beams (12) extend out to the splicing heads of the prefabricated frame beams (12) and penetrate through splicing nodes (13) to be anchored in a straight line. The utility model improves the connection design of the frame nodes and the peripheral frame beams and columns, realizes the linear anchoring of the longitudinal ribs at the bottom of the frame beams and the continuous through anchoring of the longitudinal ribs at the top of the frame beams, enhances the connection integrity of the assembled reinforced concrete frame structure and ensures that the assembled reinforced concrete frame structure has better anti-seismic ductility.
Description
Technical Field
The utility model belongs to the technical field of building materials and building construction, and relates to a beam column node of an assembled reinforced concrete frame structure and a manufacturing method thereof.
Background
The assembled concrete structure is a concrete structure assembled by precast concrete members in a reliable connection mode, and comprises an assembled integral concrete structure, a fully assembled concrete structure and the like. In the construction engineering, the assembly type building is called as the assembly type building for short; in structural engineering, the structure is simply called an assembled structure. Prefabricated parts refer to concrete parts prefabricated in factories or on site, such as beams, plates, walls, columns, balconies, stairways, rainsheds, etc.
The traditional building construction technology has low production efficiency, low construction speed, long construction period, high material consumption and high labor intensity of workers, and the series of conditions can not meet the requirements of modern society on the building. The assembled building has the following characteristics: firstly, the design is diversified, and the design can be carried out according to the housing requirements; secondly, the function is modernized, and various energy-saving and environment-friendly novel materials can be adopted; thirdly, the manufacturing industrialization can lead the building components and accessories to be produced in a unified industrialized manner, and the process is finished at one time; fourthly, construction assembly is realized, so that the labor cost can be greatly reduced, the material waste is reduced, and part of high-altitude operation is arranged on the ground to finish; and fifthly, time optimization is carried out, and the construction period is obviously shortened. The assembled building pays attention to the protection of environment and resources, the construction process of the assembled building effectively reduces the discharge of building sewage, harmful gas and dust and the pollution of building noise, reduces various influences of building construction on surrounding environment, is beneficial to improving the labor productivity of the building, promotes the design and the refinement of the building, promotes the overall quality of the building, saves energy and reduces emission rate, promotes the healthy sustainable development of the building industry in China, and meets the requirements of national economic development. The assembled building is one of the most promising industrial projects in the future.
The prefabricated building needs to connect the same kind of prefabricated components or different kinds of prefabricated components, and as the reinforced concrete components are cast into a whole by concrete and steel bars, the problem of anchoring longitudinal steel bars in the node area of the reinforced concrete frame structure, in particular to the problem of anchoring longitudinal steel bars at the bottom of the reinforced concrete frame beam at the node, must be solved. The length of the earthquake-resistant anchorage of the longitudinal tension steel bar is as follows:
wherein: zeta type aE The correction coefficient is the anti-seismic anchoring length; ζa is a correction coefficient of the anchoring length of the tension steel bar, and can be omitted; alpha is the shape factor of the steel bar; f (f) y The strength value is designed for the steel bar; f (f) t The strength value is designed for the tensile strength of the concrete.
Taking the secondary anti-seismic grade and the C30 concrete strength grade as examples, the anchoring length of the longitudinal tension steel bars at the bottom of the frame beam is as follows:
namely: zeta type aE 1.15, second-level earthquake resistance; ζa is 1.1; alpha is 0.14, and the HRB335 profile is ribbed; f (f) y 360N/mm 2 ；f t 1.43N/mm 2 。
The anchoring length of the longitudinal steel bars at the bottom of the frame beam is that the longitudinal steel bars extend from the column edge of the frame beam to the inside of the column in a straight line until the adjacent frame beam is crossed, and the longitudinal tensile steel bars at the bottom of the frame beam are anchored into the adjacent frame beam through simple calculation according to the formula.
The reinforced concrete frame structure has great hogging moment at the frame beam support, and the frame beam has great number of longitudinal ribs at the top, even two rows of longitudinal ribs, and the longitudinal ribs at the top of the frame beam must be penetrated linearly to extend into the frame node to the adjacent frame beam, and the length of the longitudinal ribs extending into the adjacent frame beam should be at least 1/3 of the length of the adjacent frame beam. In order to provide the frame structure with a certain anti-seismic ductility, the integrity of the connection of the frame structure should be enhanced.
The utility model of Chinese patent application number CN201611093822.4 discloses an assembled reinforced concrete frame beam column node and a preparation method thereof, longitudinal ribs and core area stirrups in the same direction as the frame beams on four sides of the column are embedded in the assembled reinforced concrete frame beam column node, the four sides of the column extend out of a section of beam which is the same as the frame beams and are provided with grooves, and the joint of the column and the frame beams is provided with a width of cast-in-place concrete. The prefabricated reinforced concrete frame node has certain integrity and earthquake resistance ductility, but the longitudinal ribs of the frame beam at the reinforced concrete frame node are not anchored into the frame column to the frame beam of the adjacent span in a straight line, but are connected at the short beam part extending out from the periphery of the frame node, so that the anchoring property of the longitudinal ribs of the frame beam is poor.
The utility model of Chinese patent application number CN201620092286.5 discloses a mechanical connecting node of precast beam column steel bars with protective sleeves, wherein a reserved longitudinal bar at the bottom of an upper column and a reserved longitudinal bar at the top of a lower column are connected at the node through a mechanical connecting joint; the longitudinal ribs at the bottom of the prefabricated superposed beam are also connected at the joints by adopting mechanical connection joints. The direct connection performance of the column nodes can be enhanced, and the bearing capacity and reliability of the nodes are improved. But the longitudinal ribs at the bottom of the prefabricated laminated beam are still not anchored in the frame column at the joints in a straight line until the prefabricated laminated beam with adjacent spans is connected by adopting mechanical connecting joints, the firmness is also unreliable, and the anchoring property of the longitudinal ribs of the prefabricated laminated beam is still poor.
Disclosure of Invention
The utility model aims to overcome the defects of the prior art, aims at solving the problems that the longitudinal ribs of the frame beam at the beam column joint of the prefabricated reinforced concrete frame are not anchored into the frame column in a straight line until the frame beam of an adjacent span is in poor anchoring property of the longitudinal ribs of the frame beam at present, improves the design of the connection between the frame joint and the frame beam column of the periphery, realizes the straight anchoring of the longitudinal ribs at the bottom of the frame beam and the continuous through anchoring of the longitudinal ribs at the top of the frame beam, enhances the connection integrity of the assembled reinforced concrete frame structure, ensures that the assembled reinforced concrete frame structure has better anti-seismic ductility, and simultaneously solves the manufacturing method problem of the beam column joint of the assembled reinforced concrete frame structure. The method is simple, saves cost and has good integrity.
In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows: the utility model provides an assembled reinforced concrete frame structure beam column node comprises prefabricated frame post and prefabricated frame beam's concatenation node and cast in situ concrete, its characterized in that:
the column longitudinal ribs in the prefabricated frame column extend out of the top of the prefabricated frame column to form column top reserved longitudinal ribs;
a plurality of node column stirrups are arranged along the periphery of the reserved longitudinal bars of the column top and are bound with the reserved longitudinal bars of the column top;
the prefabricated frame beams are spliced on the tops of the prefabricated frame columns, longitudinal ribs at the bottoms of the prefabricated frame beams extend out of the prefabricated frame beam splice directions, and the prefabricated frame beams penetrate through splicing nodes to be anchored in a straight line; in order to meet the anchoring length of the longitudinal ribs at the bottom of the frame beam with the coaxial adjacent span, the length of the prefabricated frame beam is shorter than the clear span of the frame beam.
And cast-in-place concrete is filled at a splicing joint formed by mutually splicing the prefabricated frame columns and the prefabricated frame beams.
Further, along the periphery of the extending part of the longitudinal rib at the bottom of the beam, a plurality of node beam stirrups are arranged outside the reserved longitudinal rib at the top of the column and are bound with the extending part of the longitudinal rib at the bottom of the beam.
Further, the reserved longitudinal ribs at the top of the column are connected with the sleeve or the column longitudinal ribs of the upper prefabricated frame column.
Further, the prefabricated frame beam is a U-shaped beam, so that the second row of longitudinal ribs at the bottom of the prefabricated frame beam and the longitudinal ribs at the top of the beam can be installed on site.
Further, the joint of the cast-in-situ node and the prefabricated frame beam is a horizontal haunching beam structure or a vertical haunching beam structure. Increasing the carrying capacity.
On the basis, the further technical scheme is as follows: a manufacturing die for beam column joints of an assembled reinforced concrete frame structure comprises a splice bottom template, a splice side template, a joint angle template and a fixed steel frame for fixing the templates; the fixed steel frame fixedly splices the splicing head bottom template and the splicing head side template into a U-shaped groove structure, and splices the node angle template and the splicing head side template at right angles to form a casting space of the cast-in-situ node; the die is sleeved on the prefabricated frame beam and firmly fixed at the beam end of the prefabricated frame beam.
Further, the fixed steel frame comprises two plane trusses and a bottom rod; the plane truss comprises a side die upper chord member, a side die lower chord member, a vertical web member, an angle die upper chord member and an angle die lower chord member; the side die upper chord member is parallel and opposite to the side die lower chord member, and is vertically and fixedly connected with two ends of the vertical web member;
the side die upper chord member is vertically and fixedly connected with the angle die upper chord member and the side die lower chord member at the end points respectively; the bottom of the angle mould lower chord member is above, the outer sides of the angle mould upper chord member and the angle mould lower chord member are integrally planar, and the angle mould lower chord member is suitable for installing a node angle mould plate;
the two plane truss angle mould upper chords and the angle mould lower chords are outwards, symmetrically arranged in parallel, and the bottoms of the two side mould lower chords are vertically and fixedly connected with the two ends of the bottom rod; the two-side splice side templates are tightly attached to the inner side walls of the two plane trusses, and the splice bottom templates are arranged at the bottom of the fixed steel frame and clamped between the two-side splice side templates;
bolt mounting holes are formed in the vertical web members of the end heads, which are far away from one end of the upper chord member of the angle mould and one end of the lower chord member of the angle mould, bolt mounting holes are formed in corresponding positions of the corresponding splicing head side templates, the fixed steel frame and the two splicing head side templates are fixed at the beam ends of the prefabricated frame beams through outer mould pull rods and pull rod fasteners, and the fixed steel frame and the two splicing head side templates can be hoisted with the prefabricated frame beams in advance after being installed on the ground.
Further, the side mold upper chord member, the side mold lower chord member, the vertical web member, the angle mold upper chord member and the angle mold lower chord member are one or any combination of angle steel, I-steel, square steel and steel laths, and are preferably angle steel.
Further, the number of the bolt mounting holes on the end vertical web members, the corresponding splicing head side templates and the prefabricated frame beam ends is at least 1.
Further, a supporting structure of the node angle template is reserved or installed on the outer side of the bottom of the lower chord member of the angle template.
Preferably, the outer side of the bottom of the lower chord member of the angle mould is reserved or provided with a horizontal angle limb of the node angle mould, or more than two short steel bars which are welded horizontally and have the same height and the length equal to or smaller than the thickness of the node angle mould.
Further, diagonal braces are fixedly arranged between the side die upper chord member and the angle die upper chord member and between the side die lower chord member and the angle die lower chord member respectively.
On the basis, the further technical scheme is as follows: the manufacturing method of the beam column node of the assembled reinforced concrete frame structure comprises the following steps:
s01, flicking a positioning axis on an engineering construction site, hoisting, installing and fixing a prefabricated frame column, and checking and accepting to be qualified;
s02, mounting a beam column node manufacturing die at the beam end of the prefabricated frame beam: sequentially penetrating through the vertical web members at the end parts, the side templates of the splicing heads, the beam ends of the prefabricated frame beams, the side templates of the splicing heads at the other side and the bolt mounting holes on the vertical web members at the end parts by using external mold pull rods, fixing the beam column node manufacturing mold at the beam ends of the prefabricated frame beams by using pull rod fixing pieces, sleeving node beam stirrups and temporarily fixing the beam ends of the prefabricated frame beams in close proximity;
s03, hoisting the prefabricated frame beam of the beam column node manufacturing mold to a designated position, preventing the displacement and inclination of the fixed frame beam, installing a node angle template and propping up the prefabricated frame column edge;
s04, adjusting the positions of the node beam stirrups and binding firmly, installing the node column stirrups of the beam column nodes, installing the second row of longitudinal bars at the bottom of the frame beam, installing the beam top longitudinal bars of the prefabricated frame beam, and installing the steel bars of other concrete members connected with the frame beam column;
s05, pouring concrete after the inspection and acceptance of the hidden engineering are qualified;
s06, removing the template and curing the concrete when the form removing condition is reached, pouring fine stone concrete into the reserved bolt mounting holes at the beam end of the prefabricated frame beam and trowelling the bolt mounting holes.
Further, in step S02, the inner surface of the splice side template is abutted against the side surface of the prefabricated frame beam, and the inner surface of the splice bottom template is abutted against the bottom surface of the prefabricated frame beam.
Further, in step S02, the tie rod fixing member is a washer and a nut in this order from inside to outside.
Further, in step S03, a support is provided at the bottom of the beam end of the prefabricated frame beam.
Further, in step S03, when only 2-3 frame beams are installed at the beam-column joints, concrete of the joints at the non-beam is fixed with the side form supports of the conventional art.
Further, in step S06, the demolding sequence is: dismantling the bottom support of the beam end of the prefabricated frame beam, unlocking the pull rod fixing piece of the beam end of the prefabricated frame beam, withdrawing the pull rod, dismantling the fixed steel frame, and disengaging the side template of the splicing head, the bottom template of the splicing head and the node angle template.
The utility model has the beneficial effects of.
1. In order to strengthen the connection integrity of the prefabricated reinforced concrete frame nodes, the utility model adopts cast-in-situ reinforced concrete frame nodes, and cast concrete is integrally embodied in a certain range of frame beam and column connection after the prefabricated reinforced concrete frame beams and columns are installed.
2. In order to solve the problems of insufficient connection and anchoring of longitudinal ribs of a prefabricated node frame beam of a prefabricated reinforced concrete frame structure, the utility model adopts the method that the longitudinal ribs at the bottom of the prefabricated reinforced concrete frame beam are linearly anchored into the frame beam from the frame node to the adjacent span. The technical means is that the cast-in-situ beam end with the protruding frame column edge is convenient for the adjacent longitudinal ribs at the bottom of the prefabricated frame beam to be anchored in a straight line; secondly, when two rows of longitudinal ribs are arranged at the bottom of the prefabricated frame beam, the prefabricated frame beam is made into a U-shaped beam which is deeply concave to the bottom so that the anchoring length is not limited when the second row of longitudinal ribs at the bottom of the frame beam is installed on site; thirdly, when the stirrups of the prefabricated frame beams extend out of the tops of the prefabricated frame beams so as to facilitate the on-site installation of the prefabricated frames, longitudinal ribs of the tops of the beams extend to penetrate through, linearly extend into the nodes and extend into adjacent span frame beams.
3. In order to solve the problem that a formwork is not well erected for pouring concrete in site construction of a cast-in-situ frame node, the utility model provides a manufacturing mould for a beam column node of an assembled reinforced concrete frame structure, the mould comprises a formwork and a fixed steel frame, and the formwork comprises a splicing head bottom formwork, a splicing head side formwork and a node angle formwork; the fixed steel frame fixedly splices the splicing head bottom template and the splicing head side template into a U-shaped groove structure, and splices the node angle template and the splicing head side template at right angles to form a casting space of the cast-in-situ node; the die is sleeved on the prefabricated frame beam and firmly fixed at the beam end of the prefabricated frame beam.
4. The beam column node of the precast reinforced concrete frame structure provided by the utility model consists of the spliced node of the precast frame column and the precast frame beam and cast-in-place concrete, and during manufacturing, the spliced head bottom template, the spliced head side template and the fixed steel frame are fixedly arranged at the beam end of the precast frame beam through bolts, and can be integrally hoisted with the precast frame beam after being arranged on the ground in advance. The construction method is simple, convenient and practical, the longitudinal ribs of the beam column joints can be anchored in a straight line, the anchoring length is not affected, the anchoring performance is good, the prefabricated reinforced concrete frame beam column connecting joint is used for pouring concrete on site, the assembly production is realized, the advantages of firm connection and good integrity are achieved, and the method has strong popularization and application values in the existing assembly type building.
Drawings
Fig. 1 is a schematic structural view of a beam-column joint of an assembled reinforced concrete frame structure according to embodiment 1 of the present utility model;
FIG. 2 is a schematic diagram of an exploded structure of a mold assembly for manufacturing a beam-column joint according to embodiment 2 of the present utility model;
FIG. 3 is a schematic structural view of a planar truss for fixing steel frame members according to embodiment 2 of the present utility model;
fig. 4 is a schematic view of the installation of the manufacturing mold provided in embodiment 2 of the present utility model at the beam end of the prefabricated frame beam;
FIG. 5 is a cross-sectional view of a beam-column joint and a mold for making the same of the present utility model prior to casting concrete provided in example 3 of the present utility model;
FIG. 6 is a schematic view of the installation of a mold during the fabrication of a beam-column joint according to embodiment 3 of the present utility model;
fig. 7 is a cross-sectional view of a beam-column joint according to the present utility model provided in embodiment 3 of the present utility model.
Parts, parts and numbers in the figures: 11-prefabricated frame columns, 12-prefabricated frame beams, 13-splicing nodes, 131-column longitudinal ribs, 1311-column top reserved longitudinal ribs, 132-node column stirrups, 133-beam bottom longitudinal ribs, 1331-beam bottom longitudinal rib extension parts, 134-node beam stirrups, 135-beam bottom second row longitudinal ribs, 136-beam top longitudinal ribs and 14-cast-in-place concrete;
21-splice bottom templates, 22-splice side templates, 23-node corner templates, 24-fixed steel frames, 241-plane trusses, 2411-side die upper chords, 2412-side die lower chords, 2413-vertical web members, 24131-end vertical web members, 2414-corner die upper chords, 2415-corner die lower chords, 2416-outer die ties, 2417-tie fasteners, 2418-diagonal braces, 2419-bolt mounting holes, 242-bottom ties.
Detailed Description
The following describes the technical scheme of the present utility model in detail with reference to the accompanying drawings, but the content of the present utility model is not limited thereto.
Example 1:
as shown in fig. 1, the beam column node of the fabricated reinforced concrete frame structure of the utility model is composed of a splicing node 13 of a prefabricated frame column 11 and a prefabricated frame beam 12 and cast-in-place concrete 14, and column longitudinal ribs 131 in the prefabricated frame column 11 extend out of the top of the prefabricated frame column 11 to form column top reserved longitudinal ribs 1311; a plurality of node column stirrups 132 are arranged along the periphery of the column top reserved longitudinal ribs 1311 and are bound with the column top reserved longitudinal ribs 1311; the prefabricated frame beams 12 are spliced on the tops of the prefabricated frame columns 11, beam bottom longitudinal ribs 133 in the prefabricated frame beams 12 extend towards the splicing heads of the prefabricated frame beams 12, and are anchored in a straight line through splicing nodes 13; along the periphery of the beam bottom longitudinal bar extension 1331, the reserved longitudinal bars 1311 at the top of the column are provided with a plurality of node beam stirrups 134, and are bound with the beam bottom longitudinal bar extension 1331. In order to meet the anchoring length of the beam bottom longitudinal ribs 133 of the coaxial adjacent-span frame beams, the length of the prefabricated frame beams 12 is shorter than the clear span of the frame beams; cast-in-place concrete 14 is filled at a splicing node 13 formed by mutually splicing the prefabricated frame columns 11 and the prefabricated frame beams 12; the prefabricated frame beam 12 is a U-shaped beam, and a second row of beam bottom longitudinal ribs 135 and a beam top longitudinal rib 136 are installed on site.
Example 2:
as shown in fig. 2, the manufacturing mold of the beam column node of the fabricated reinforced concrete frame structure comprises a splice bottom template 21, a splice side template 22, a node angle template 23 and a fixed steel frame 24 for fixing the templates; the fixed steel frame 24 fixedly splices the splicing head bottom template 21 and the splicing head side template 22 into a U-shaped groove structure, and splices the node angle template 23 and the splicing head side template 22 at right angles to jointly form a casting space of the beam column node. In use, as shown in fig. 4, the mold is slipped over the prefabricated frame beams 12 and the outer mold tie rods 2416 are passed through the bolt mounting holes 2419 and secured to the beam ends of the prefabricated frame beams 12 with the tie rod fasteners 2417.
Example 3:
as shown in fig. 2-4, in the manufacturing mold for beam-column joints of an assembled reinforced concrete frame structure of the present utility model, on the basis of embodiment 2, the fixed steel frame 24 includes two plane trusses 241 and bottom rods 242; the plane truss 241 includes side form upper chords 2411, side form lower chords 2412, vertical web members 2413, angle form upper chords 2414, angle form lower chords 2415; the side mold upper chord 2411, the side mold lower chord 2412, the angle mold upper chord 2414 and the angle mold lower chord 2415 are made of angle steel; among the vertical web members 2413, the end vertical web member 24131 far from one end of the angle mold upper chord member 2414 and the angle mold lower chord member 2415 is made of steel plate strips, and the other vertical web members 2413 are made of angle steel; the side mold upper chord 2411 is opposite to the side mold lower chord 2412 in parallel and is vertically and fixedly connected with two ends of the vertical web member 2413; the side mold upper chord 2411 and the angle mold upper chord 2414, and the side mold lower chord 2412 and the angle mold lower chord 2415 are respectively and vertically fixedly connected at the end points; the bottom of the angle mould lower chord 2415 is above, the outer sides of the angle mould upper chord 2414 and the angle mould lower chord 2415 are wholly plane, and are suitable for installing the node angle mould plate 23; the two plane trusses 241 are arranged in parallel and symmetrically with the angle mould upper chord 2414 and the angle mould lower chord 2415 outwards, and the bottoms of the two side mould lower chords 2412 are vertically and fixedly connected with the two ends of the bottom rod 242; the two-side splice side templates 22 are tightly attached to the inner side walls of the two plane trusses 241, and the splice bottom templates 21 are arranged at the bottom of the fixed steel frame 24 and clamped between the two-side splice side templates 22; the vertical web members 24131 of the end heads far away from one end of the angle mould upper chord member 2414 and the angle mould lower chord member 2415 are provided with bolt mounting holes 2419, the corresponding positions of the corresponding splice side templates 22 are also provided with bolt mounting holes 2419, the fixed steel frame 24 and the two splice side templates 22 are fixed at the beam ends of the prefabricated frame beams 12 through the outer mould pull rods 2416 and the pull rod fasteners 2417, and the fixed steel frame and the two splice side templates can be integrally hoisted with the prefabricated frame beams 12 after being installed on the ground in advance; the outer side of the bottom of the angle mould lower chord 2415 is preset with a horizontal angle limb for supporting the node angle mould plate 23; inclined struts 2418 are fixedly arranged between the side-die upper chord 2411 and the angle-die upper chord 2414 and between the side-die lower chord 2412 and the angle-die lower chord 2415, respectively. The diagonal brace 2418 is fabricated from a steel strip.
The processing and welding steps of the fixing steel frame 24 in this embodiment are as follows:
g01, one corner limb of the side die upper chord 2411 extends outwards, the other corner limb extends downwards, the side die upper chord 2411 and the corner die upper chord 2414 are subjected to 45-degree angle cutting butt welding, and the side die upper chord 2411 and the corner die upper chord 2414 are obliquely connected by using an inclined stay 2418 to form a stable triangle;
g02, one corner limb of the side die lower chord 2412 extends to the inner side of the beam, the other corner limb extends upwards, the side die lower chord 2412 and the corner die lower chord 2415 are subjected to 45-degree corner cutting butt welding, and the side die lower chord 2412 and the corner die lower chord 2415 are obliquely connected by using an inclined stay 2418 to form a stable triangle;
the upper side mold chord 2411 and the lower side mold chord 2412 are connected by a vertical web member 2413 through lap welding, the inner side of the angle limb of the upper side mold chord 2411 is lap welded at the upper end of the vertical web member 2413, the outer side of the angle limb of the lower side mold chord 2412 is lap welded at the lower end, the outer surfaces of the angle limb of the upper side mold chord 2411 and the lower side mold chord 2412 are kept to be a plane, and a plane truss 241 is formed;
g04, the bottom surfaces of the side mould lower chords 2412 on the two sides are connected by lap welding through bottom rods 242 to form a fixed steel frame 24;
g05, a bolt mounting hole 2419 is formed in the end vertical web member 2413, and the hole position corresponds to a preset bolt mounting hole 2419 at the beam end of the prefabricated frame beam 12.
Example 4:
on the basis of the embodiments 1-3, the manufacturing method of the beam column node of the assembled reinforced concrete frame structure comprises the following steps:
s01, flicking a positioning axis on an engineering construction site, hoisting and installing a prefabricated frame column 11, and checking and accepting to be qualified;
s02, as shown in fig. 5 and 6, a beam column node manufacturing mold is installed at the beam end of the prefabricated frame beam 12: sequentially penetrating through the end vertical web member 2413, the splicing head side template 22, the beam end of the prefabricated frame beam 12, the other side splicing head side template 22 and the bolt mounting holes 2419 on the end vertical web member 2413 by using an external mold pull rod 2416, fixing a beam column node manufacturing mold on the beam end of the prefabricated frame beam 12 by using a pull rod fixing piece, sleeving a node beam stirrup 134 and temporarily fixing the beam end of the prefabricated frame beam 12; the inner surface of the splice side template 22 is clung to the side surface of the prefabricated frame beam 12, and the inner surface of the splice bottom template 21 is clung to the bottom surface of the prefabricated frame beam 12;
s03, as shown in FIG. 6, hoisting the prefabricated frame beams 12 of the beam column node manufacturing mold to a designated position, preventing the fixed frame beams from being displaced and inclined, installing a node angle template 23 and propping up the edges of the prefabricated frame columns 11; a support is arranged at the bottom of the beam end of the prefabricated frame beam 12;
s04, adjusting the positions of node beam stirrups 134 and binding firmly, installing the node column stirrups 132 of beam column nodes, installing a second row of longitudinal ribs 135 at the bottom of a frame beam, installing the beam top longitudinal ribs 136 of the prefabricated frame beam 12, and installing the steel bars of other concrete members connected with the frame beam column;
s05, pouring concrete after the inspection and acceptance of the hidden engineering are qualified;
s06, removing the template and curing the concrete when the form removing condition is reached, pouring fine stone concrete into the reserved bolt mounting holes 2419 at the beam end of the prefabricated frame beam 12 and trowelling the bolt mounting holes 2419; the die stripping sequence is as follows: removing the bottom support of the beam end of the prefabricated frame beam 12, unlocking the fixed piece of the beam end pull rod of the prefabricated frame beam 12, withdrawing the pull rod, removing the fixed steel frame 24, and disconnecting the splice side template 22, the splice bottom template 21 and the joint angle template 23. As shown in fig. 7, a cross-sectional view of the beam-column joint according to the present utility model is provided in this embodiment.
The above description is only of the preferred embodiments of the present utility model, and is not intended to limit the scope of the claims. Any solution implemented in the scope of the claims covered by the claims of this application, or any solution that is possible to a person skilled in the art, using the method content disclosed above, falls within the scope of protection of the utility model.
Claims (10)
1. The utility model provides an assembled reinforced concrete frame structure beam column node comprises concatenation node (13) and cast in situ concrete (14) of prefabricated frame post (11) and prefabricated frame roof beam (12), its characterized in that: column longitudinal ribs (131) in the prefabricated frame column (11) extend out of the top of the prefabricated frame column (11) to form column top reserved longitudinal ribs (1311); a plurality of node column stirrups (132) are arranged along the periphery of the column top reserved longitudinal ribs (1311) and are bound with the column top reserved longitudinal ribs (1311); the prefabricated frame beams (12) are spliced on the tops of the prefabricated frame columns (11), beam bottom longitudinal ribs (133) in the prefabricated frame beams (12) extend out to the splicing heads of the prefabricated frame beams (12) and penetrate through splicing nodes (13) to be anchored in a straight line; filling cast-in-place concrete (14) at a splicing node (13) formed by mutually splicing the prefabricated frame columns (11) and the prefabricated frame beams (12); the prefabricated frame beams (12) are U-shaped beams.
2. A fabricated reinforced concrete frame structure beam-column node as claimed in claim 1, wherein: along the periphery of the beam bottom longitudinal rib extension part (1331), a plurality of node beam stirrups (134) are arranged outside the reserved longitudinal rib (1311) at the top of the column and are bound with the beam bottom longitudinal rib extension part (1331).
3. A fabricated reinforced concrete frame structure beam-column node as claimed in claim 1, wherein: the reserved column top longitudinal ribs (1311) are connected with the sleeve or the column longitudinal ribs (131) of the upper prefabricated frame column (11).
4. A fabricated reinforced concrete frame structure beam-column node as claimed in claim 1, wherein: the joint of the beam column node and the prefabricated frame beam (12) is a horizontal haunching beam structure or a vertical haunching beam structure.
5. The manufacturing die of the beam column node of the assembled reinforced concrete frame structure comprises a splicing head bottom die plate (21), a splicing head side die plate (22), a node angle die plate (23) and a fixed steel frame (24) for fixing the die plates; the fixed steel frame (24) fixedly splices the splicing head bottom template (21) and the splicing head side template (22) into a U-shaped groove structure, and the node angle template (23) and the splicing head side template (22) are spliced at right angles to form a casting space of the cast-in-situ node; the die is sleeved on the prefabricated frame beam (12) and is firmly fixed at the beam end of the prefabricated frame beam (12);
the fixed steel frame (24) comprises two plane trusses (241) and a bottom rod (242); the plane truss (241) comprises a side die upper chord member (2411), a side die lower chord member (2412), a vertical web member (2413), an angle die upper chord member (2414) and an angle die lower chord member (2415); the side die upper chord member (2411) is opposite to the side die lower chord member (2412) in parallel and is vertically and fixedly connected with two ends of the vertical web member (2413); the side die upper chord member (2411) and the angle die upper chord member (2414), and the side die lower chord member (2412) and the angle die lower chord member (2415) are respectively and vertically fixedly connected at the end points; the outer sides of the angle mould upper chord member (2414) and the angle mould lower chord member (2415) are integrally planar and are suitable for installing the node angle template (23); a supporting structure of a node angle template (23) is reserved or installed on the outer side of the bottom of the angle mould lower chord member (2415); the angle mould upper chords (2414) and the angle mould lower chords (2415) of the two plane trusses (241) are outwards and symmetrically arranged in parallel, and the bottoms of the two side mould lower chords (2412) are vertically and fixedly connected with the two ends of the bottom rod (242); the two-side splice side templates (22) are tightly attached to the inner side walls of the two plane trusses (241), the splice bottom templates (21) are arranged at the bottom of the fixed steel frame (24) and clamped between the two-side splice side templates (22); bolt mounting holes (2419) are formed in end vertical web members (24131) far away from one end of an upper chord member (2414) and one end of a lower chord member (2415) of the angle mould, bolt mounting holes (2419) are formed in corresponding positions of corresponding splicing head side templates (22), and a fixed steel frame (24) and two splicing head side templates (22) are fixed at the beam ends of the prefabricated frame beams (12) through outer mould pull rods (2416) and pull rod fasteners (2417) and can be integrally hoisted with the prefabricated frame beams (12) after being installed on the ground in advance;
the supporting structure reserved or installed on the outer side of the bottom of the lower chord member (2415) of the angle mould is a horizontal angle limb of angle steel or more than two short steel bars which are welded horizontally and have the same height and the length equal to or smaller than the thickness of the angle mould.
6. The manufacturing die for the beam column node of the fabricated reinforced concrete frame structure as set forth in claim 5, wherein: the side mold upper chord member (2411), the side mold lower chord member (2412), the vertical web member (2413), the angle mold upper chord member (2414) and the angle mold lower chord member (2415) are one or any combination of angle steel, I-steel, square steel and steel laths.
7. The manufacturing die for the beam column node of the fabricated reinforced concrete frame structure as set forth in claim 5, wherein: the number of bolt mounting holes (2419) on the beam ends of the end vertical web members (2413), the splicing head side templates (22) corresponding to the end vertical web members and the prefabricated frame beams (12) is at least 1.
8. The manufacturing die for the beam column node of the fabricated reinforced concrete frame structure as set forth in claim 5, wherein: inclined struts (2418) are fixedly arranged between the side die upper chord (2411) and the angle die upper chord (2414) and between the side die lower chord (2412) and the angle die lower chord (2415) respectively.
9. The manufacturing method of the beam column node of the assembled reinforced concrete frame structure comprises the following steps:
s01, flicking a positioning axis on an engineering construction site, hoisting and installing a prefabricated frame column (11) which is fixed, and checking and accepting the prefabricated frame column;
s02, mounting a beam column node manufacturing die at the beam end of the prefabricated frame beam (12): sequentially penetrating through the end vertical web member (2413), the splicing head side template (22), the beam end of the prefabricated frame beam (12), the splicing head side template (22) on the other side and the bolt mounting holes (2419) on the end vertical web member (2413) by using an external mold pull rod (2416), fixing a beam column node manufacturing mold at the beam end of the prefabricated frame beam (12) by using a pull rod fixing piece, sleeving a node beam stirrup (134) and temporarily fixing the beam end of the prefabricated frame beam (12); the inner surface of the splicing head side template (22) is clung to the side surface of the prefabricated frame beam (12), and the inner surface of the splicing head bottom template (21) is clung to the bottom surface of the prefabricated frame beam (12);
s03, hoisting the prefabricated frame beam (12) of the beam column node manufacturing mould to a designated position, preventing the fixed frame beam from shifting and tilting, installing a node angle template (23) and propping up the edge of the prefabricated frame column (11); a support is arranged at the bottom of the beam end of the prefabricated frame beam (12);
s04, adjusting the positions of node beam stirrups (134) and binding firmly, installing the node column stirrups (132) of beam column nodes, installing a second row of longitudinal ribs (135) at the bottom of a frame beam, installing a beam top longitudinal rib (136) of a prefabricated frame beam (12), and installing steel bars of other concrete members connected with the frame beam column;
s05, pouring concrete after the inspection and acceptance of the hidden engineering are qualified;
s06, removing the template and curing the concrete when the form removing condition is reached, reserving bolt mounting holes (2419) at the beam ends of the prefabricated frame beams (12), pouring fine stone concrete and trowelling the bolt mounting holes (2419).
10. The method for manufacturing the beam column node of the fabricated reinforced concrete frame structure as claimed in claim 9, wherein: in step S03, when only 2-3 frame beams are installed at the beam-column joints, concrete at the joints of the non-beam joints is fixed by side form supports of the conventional art.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710696728.6A CN107288218B (en) | 2017-08-15 | 2017-08-15 | Beam column node of assembled reinforced concrete frame structure and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710696728.6A CN107288218B (en) | 2017-08-15 | 2017-08-15 | Beam column node of assembled reinforced concrete frame structure and manufacturing method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107288218A CN107288218A (en) | 2017-10-24 |
| CN107288218B true CN107288218B (en) | 2023-07-21 |
Family
ID=60106838
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710696728.6A Active CN107288218B (en) | 2017-08-15 | 2017-08-15 | Beam column node of assembled reinforced concrete frame structure and manufacturing method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107288218B (en) |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109898850B (en) * | 2017-12-07 | 2021-04-09 | 广宏建设集团有限公司 | Template suitable for post-cast section of assembled beam column and using method thereof |
| CN108179807A (en) * | 2018-01-25 | 2018-06-19 | 中国建筑股份有限公司 | A kind of prefabricated beam column crimping joint strengthening structure and its construction method |
| CN210104978U (en) * | 2018-06-04 | 2020-02-21 | 浙江中益建材科技有限公司 | Steel bar truss plate and frame formwork support node structure |
| CN108867890A (en) * | 2018-07-27 | 2018-11-23 | 华南理工大学 | The integral prefabricated node of beam column of the junction with rigid template bracket and its construction method |
| CN109098332A (en) * | 2018-09-13 | 2018-12-28 | 东南大学 | A kind of novel contignation and its method of construction towards marine environment |
| CN109518952B (en) * | 2018-12-28 | 2023-10-20 | 云南建投第二建设有限公司 | Be used for assembled building primary and secondary beam node to support, location, template device |
| CN109653487A (en) * | 2018-12-29 | 2019-04-19 | 浙江中益建材科技有限公司 | Deckle board combination mould |
| CN110107023B (en) * | 2019-05-10 | 2022-02-11 | 中国十七冶集团有限公司 | Rigid connection prefabricated frame beam for assembly type building |
| CN110219386B (en) * | 2019-06-17 | 2024-02-02 | 中鼎(河南)建筑研究院有限公司 | Non-welding assembled grid plate |
| CN110512728B (en) * | 2019-07-23 | 2020-10-27 | 江苏晟功建设集团有限公司 | Assembly type building superposed lotus root beam column node structure and construction method thereof |
| CN110552424A (en) * | 2019-09-20 | 2019-12-10 | 西安建筑科技大学 | Fabricated concrete frame beam-column joint and construction method thereof |
| CN113089825B (en) * | 2021-04-19 | 2023-07-25 | 重庆恒昇大业建筑科技集团有限公司 | Beam-column mixed frame node, preparation method of precast concrete beam and construction method of precast concrete beam |
| CN114352008B (en) * | 2022-01-06 | 2023-11-03 | 北京城建集团有限责任公司 | Comprehensive beam column template system and construction method thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06294135A (en) * | 1993-04-08 | 1994-10-21 | Nippon Kaiser Kk | Underground beam construction method |
| CN103556781A (en) * | 2013-10-31 | 2014-02-05 | 中国航空规划建设发展有限公司 | Fabricated frame strip steel bracket long column and construction method thereof |
| CN204435564U (en) * | 2015-01-16 | 2015-07-01 | 青岛建安建设集团有限公司 | Prefabricated assembled frame construction New Types of Beam column Connections |
| CN105756191A (en) * | 2016-04-22 | 2016-07-13 | 河北省建筑科学研究院 | Assembling-type beam-column joint connection structure for concrete special-shaped column frame |
| CN106948548A (en) * | 2017-04-26 | 2017-07-14 | 广西大学 | A kind of precast concrete frame beam structure |
| CN106988483A (en) * | 2017-06-05 | 2017-07-28 | 姚芳辉 | A kind of assembled steel reinforced Concrete U Vierendeel girder and its construction method |
-
2017
- 2017-08-15 CN CN201710696728.6A patent/CN107288218B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06294135A (en) * | 1993-04-08 | 1994-10-21 | Nippon Kaiser Kk | Underground beam construction method |
| CN103556781A (en) * | 2013-10-31 | 2014-02-05 | 中国航空规划建设发展有限公司 | Fabricated frame strip steel bracket long column and construction method thereof |
| CN204435564U (en) * | 2015-01-16 | 2015-07-01 | 青岛建安建设集团有限公司 | Prefabricated assembled frame construction New Types of Beam column Connections |
| CN105756191A (en) * | 2016-04-22 | 2016-07-13 | 河北省建筑科学研究院 | Assembling-type beam-column joint connection structure for concrete special-shaped column frame |
| CN106948548A (en) * | 2017-04-26 | 2017-07-14 | 广西大学 | A kind of precast concrete frame beam structure |
| CN106988483A (en) * | 2017-06-05 | 2017-07-28 | 姚芳辉 | A kind of assembled steel reinforced Concrete U Vierendeel girder and its construction method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107288218A (en) | 2017-10-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107288218B (en) | Beam column node of assembled reinforced concrete frame structure and manufacturing method thereof | |
| CN109736449B (en) | Beam column joint of stiff structure and construction method | |
| CN111997193A (en) | Assembly type prefabricated beam column connecting joint and construction method | |
| CN107143034A (en) | A kind of assembly concrete frame structure beam column rigid connection node | |
| CN110067186B (en) | Steel pipe stiffening web steel-concrete combined box girder | |
| CN207812741U (en) | Pre-manufactured steel structure overlapped shear wall | |
| CN110670722A (en) | Implementation method of beam-column connecting node of fabricated building | |
| CN114232844B (en) | Shear wall system of fully assembled building and wallboard module prefabrication method thereof | |
| CN207646867U (en) | A kind of assembled steel tendon concrete frame structure bean column node and its make mold | |
| CN111749365A (en) | Assembly type composite wall based on H-shaped steel and construction method thereof | |
| CN201202181Y (en) | Connection structure for precast concrete board and beam and construction including the same | |
| CN212405468U (en) | Stiff concrete structure beam column core area structure | |
| CN209260922U (en) | Band girder rib laminated floor slab pre-tensioning system connecting joint structure | |
| CN208586747U (en) | Prefabricated PC beams of concrete column connected node | |
| CN110725475A (en) | Prefabricated column with built-in high-corrugated pipe, frame structure of prefabricated column and construction method of prefabricated column | |
| CN110653918A (en) | Construction method for synchronously pouring large-span corrugated steel inclined web precast beam with toothed block on top and bottom plates by post-tensioning method | |
| CN115233813A (en) | Beam with clamping connection plate | |
| CN213233789U (en) | Assembled prefabricated beam column connected node | |
| CN212836086U (en) | Assembled composite wall based on H shaped steel | |
| CN213539882U (en) | Middle node of steel pipe concrete column H-shaped steel beam support pi-shaped connecting side column | |
| CN210288825U (en) | Assembled and cast-in-situ combined beam plate structure | |
| CN110712290B (en) | Preparation process of precast beam | |
| CN108755939B (en) | Composite connection assembling type building structure | |
| CN113445652A (en) | Plate end slotted hole SP hollow composite slab-steel beam connecting structure and construction method thereof | |
| CN111962767A (en) | Web plate open-hole section steel partially-wrapped concrete composite beam and construction method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |