CN110644624A - Building connection node and construction method thereof - Google Patents
Building connection node and construction method thereof Download PDFInfo
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- CN110644624A CN110644624A CN201910871645.5A CN201910871645A CN110644624A CN 110644624 A CN110644624 A CN 110644624A CN 201910871645 A CN201910871645 A CN 201910871645A CN 110644624 A CN110644624 A CN 110644624A
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- prefabricated
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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
- E04B1/38—Connections for building structures in general
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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
- E04B1/38—Connections for building structures in general
- E04B1/58—Connections for building structures in general of bar-shaped building elements
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/66—Sealings
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- Electromagnetism (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
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Abstract
The invention provides a building connection node which comprises a prefabricated part, a cast-in-place part, a connection part and a sealing part, wherein the prefabricated part is fixedly connected with the cast-in-place part through the connection part, and is sealed through the sealing part after forming an integral structure with the cast-in-place part. And through hoisting in proper order and accurate detection, can guarantee going on smoothly of construction and the operational feasibility of construction, satisfy the holistic atress requirement of building. The prefabricated beam, the prefabricated column and the prefabricated composite slab are fixedly connected, cast-in-place concrete is reduced, construction is simpler and more convenient, construction efficiency and construction reliability are improved, the prefabricated overturning beam adopts the shear groove with the full length between two rows of steel bars, the prefabricated overturning beam is favorably and tightly connected with the composite slab, and a linear crack is avoided; in addition, the prefabricated laminated slab adopts a step type design, so that the stable lap joint with the bottom ribs of the floor slab can be ensured, the reasonable stress is further ensured, and the construction safety is improved.
Description
Technical Field
The invention relates to the field of buildings, in particular to a building connection node and a construction method thereof.
Background
Compared with the traditional cast-in-place building, the fabricated concrete building has the advantages of high industrialization level, reduction of wet operation amount of a construction site, reduction of material consumption, reduction of site dust and construction waste and the like, and can really achieve the purposes of energy conservation, emission reduction and environmental protection. At present, in order to ensure the mechanical and earthquake-resistant performances of the fabricated structure, the same cast-in-place concept is generally adopted by domestic fabricated concrete buildings. A relatively safe and reliable connecting joint system is formed for the connection of the common prefabricated downward-turning beam, the prefabricated columns, the prefabricated primary and secondary beams and the like. For some buildings with the requirement of headroom, in order to reduce the construction cost of the structure, the up-down turning beams have to be adopted to meet the functional requirements in all aspects without increasing the overall layer height. However, there is no reference case for the connection between the prefabricated up-down turning beam and the composite slab, and in order to ensure the mechanical property and the construction feasibility of the assembled structure, a connection node between the prefabricated reinforced concrete up-down turning beam and the composite slab and a corresponding construction method are needed, so that the requirements of reasonable structure, reliable force transmission and convenient construction are met.
For CN105155683A has introduced a precast beam column connected node in assembled concrete building, set up the through-hole on the precast column, pre-buried roof beam longitudinal reinforcement in the precast beam, the reinforcing bar passes the through-hole, indulges the muscle through sleeve and roof beam and is connected, fixes with the stirrup, and cast in situ concrete pours in the beam column connected node region. The connecting joint accords with an assembly type construction method of a prefabricated concrete structure, but the problems that the grouting process of a through hole in a column is invisible, the grouting compactness in the through hole cannot be controlled, the joint is moved to the outside of the prefabricated column to enlarge a cast-in-place area, the using amount of sleeves is large and the like exist. The cast-in-place of the prefabricated beam column connecting node area is mainly characterized in that the embedded longitudinal ribs of the prefabricated beam column all extend into the cast-in-place node area, and the cast-in-place node area is completed by erecting a template and pouring and tamping. According to the method, interference between the longitudinal ribs of the precast beams and the longitudinal ribs of the precast columns needs to be considered, and avoidance of the longitudinal ribs among the precast beams needs to be considered, so that the design and construction difficulty is greatly increased. Meanwhile, the work of erecting a mold in a cast-in-place node area and the like is added.
Another example is CN109281399A which provides a precast beam to column connection node. Precast beam and column connection node include precast post, precast beam and grout blanket, precast post with precast beam sets up perpendicularly, grout blanket locates precast post with the crossing department of precast beam, precast beam includes that the roof beam indulges the muscle, the muscle is indulged to the roof beam and is located precast beam relative inside, precast post includes the column connection position, the column connection position is located precast post reaches the department that meets of precast beam, the column connection position is including the grout sleeve, the grout sleeve cover is located the relative outside of muscle is indulged to the roof beam. The prefabricated beam and column connecting joint provided by the invention partially prefabricates the beam and column connecting joint area into the column, reduces the construction process, and effectively avoids the problem of reinforcement interference caused by excessive reinforcement in the beam and column connecting joint area, but the method can not realize better stress requirement between the prefabricated overturning beam and the prefabricated composite slab.
As further disclosed in US20080329602, a building has a concrete structural block with a large cavity towards the outside of the outer wall, which can be shaped in any of several ways, built by conventional construction, without innovations in the joints, in order to achieve better stress requirements. And the construction mode is not easy to operate.
In summary, in the field of building connection and construction, many practical problems to be solved urgently in practical application thereof have not been proposed.
Disclosure of Invention
The invention provides a building connecting node and a construction method thereof to solve the problems.
In order to achieve the purpose, the invention adopts the following technical scheme:
a building connection node comprises a prefabricated part, a cast-in-place part, a connection part and a sealing part, wherein the prefabricated part is fixedly connected with the cast-in-place part through the connection part, and is sealed through the sealing part after forming an integral structure with the cast-in-place part.
Optionally, the prefabricated part comprises a prefabricated column, a prefabricated beam and a prefabricated composite slab, the prefabricated beam comprises a prefabricated overturning beam, a prefabricated overturning frame beam and a prefabricated overturning secondary beam, and the prefabricated column is fixedly connected with the prefabricated overturning beam and two ends of the prefabricated overturning frame beam respectively; two ends of the prefabricated turnover beam are fixedly connected with different prefabricated turnover beams respectively; the prefabricated composite slab and the prefabricated beam are fixedly connected and fixedly connected in a polygonal framework formed by the prefabricated beam.
Optionally, the prefabricated composite slab and the cast-in-place section can form a building floor.
Optionally, the cast-in-place portion is disposed above the prefabricated composite slab.
Optionally, connecting portion are the floor muscle, the floor muscle includes muscle and floor gluten at the bottom of the floor, just muscle at the bottom of the floor with the floor gluten has one end to inlay respectively and inserts in the prefabricated roof beam that turns over, the other end stretches out outside the prefabricated roof beam that turns over, just the floor gluten is in buckle in the prefabricated roof beam that turns over stretches out the floor gluten tip crotch of prefabricated roof beam that turns over.
Optionally, the sealing portion is sealed by adopting a mode of combining foam and crack with grouting material, the sealing portion is arranged at the joint of the prefabricated overturning beam and the prefabricated composite slab, and the foam is arranged on the side of the grouting material.
Optionally, a shear groove is arranged between the floor gluten embedded in the prefabricated overturning beam and the floor gluten.
A construction method of a building connection node comprises the following steps:
the method comprises the following steps: according to the on-site hoisting construction requirement, marking the bottom end surface of the precast column and the butt joint surface of the precast beam;
step two: carrying out column supporting installation according to the elevation, placing a central cushion block at the center of the butt joint surface of the precast column to be installed and the precast beam, adjusting the bottom end surface of the precast column, aligning the butt joint marks of the precast column and the precast beam joint surface one by one, and carrying out operation steps of position detection, supporting locking and precision re-inspection;
step three: paying off a precast beam, checking the column top elevation of the precast column, measuring and correcting the support elevation, and hoisting a part of precast turning beams;
step four: the supporting installation of the building floor is carried out, the elevation of the concrete on the bottom surface of the prefabricated overturning beam is checked according to the supporting installation of the building floor, the prefabricated composite slab is hoisted, the height difference of the joint of the prefabricated composite slab and the prefabricated beam is corrected after the hoisting is finished, and whether the width of the joint meets the design requirement is checked;
step five: and supporting and installing the rest precast beams, and installing the rest precast beams.
Optionally, the column mounting support comprises a hoop fixing and lifting device and a quadrangular frustum pyramid shaped support, and the quadrangular frustum pyramid shaped support comprises a plurality of tubular edges; the hoop fixing and lifting device comprises an upper hoop, a lower hoop and a lifting device; openings are respectively arranged at one side of the upper anchor ear and one side of the lower anchor ear; a locking bolt is arranged at the opening; the upper hoop is hinged with the upper part of the tubular seamed edge; the lower hoop is hinged with the middle part of the tubular seamed edge; the lifting device comprises a rack with two ends respectively fixed on the upper and lower hoops and a hand-operated lifter in meshing transmission with the rack; the hand-operated lifter is also provided with a support hole for supporting a pre-buried screw rod in the prefabricated column.
Compared with the prior art, the invention has the beneficial technical effects that:
1. the invention adopts the precast beams, the precast columns and the precast composite slabs for fixed connection, reduces cast-in-place concrete, makes construction more convenient, and increases the construction efficiency and the construction reliability.
2. According to the prefabricated overturning beam, the shear grooves are arranged between the two rows of reinforcing steel bars in a through length mode, compared with the arrangement of a single shear groove, the die is easy to operate in design, and meanwhile, the prefabricated overturning beam is favorable for being tightly connected with a laminated slab, and linear cracks are prevented from being formed.
3. The prefabricated composite slab disclosed by the invention adopts a step type design, can ensure the stable lap joint with the bottom ribs of the floor slab, further ensure the reasonable stress and increase the construction safety.
4. The construction method is simple, and the prefabricated column, the prefabricated downward-turning beam, the prefabricated composite slab and the prefabricated upward-turning beam are installed in sequence, so that the smooth construction can be ensured, the operational feasibility of the construction is met, and the integral stress requirement of the building is met.
Drawings
The invention will be further understood from the following description in conjunction with the accompanying drawings. The components in the figures are not necessarily to scale, emphasis instead being placed upon illustrating the principles of the embodiments. Like reference numerals designate corresponding parts throughout the different views.
Fig. 1 is a structural sectional view of a construction connection node according to one embodiment of the present invention;
FIG. 2 is a schematic sectional view of a construction connecting node according to one embodiment of the present invention;
FIG. 3 is a schematic diagram of a building connection node in accordance with one embodiment of the present invention;
fig. 4 is a schematic view of a construction method of a building connection node according to one embodiment of the present invention.
Description of reference numerals: 1-prefabricating an up-down turning beam; 2-a laminated slab; 3-casting concrete in situ; 4-a shear groove; 5-shrinkage free mortar; 6-foam seam plugging; 7-stirrup caps; 8-prefabricating the superposed beam; 9-stirrup; and 10, anchoring reinforcing steel bars by using floor bottom ribs.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to embodiments thereof; it should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. Other systems, methods, and/or features of the present embodiments will become apparent to those skilled in the art upon review of the following detailed description. It is intended that all such additional systems, methods, features and advantages be included within this description, be within the scope of the invention, and be protected by the accompanying claims. Additional features of the disclosed embodiments are described in, and will be apparent from, the detailed description that follows.
The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar components; in the description of the present invention, it should be understood that if there is an orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", etc. based on the orientation or positional relationship shown in the drawings, it is only for convenience of describing the present invention and simplifying the description, but it is not intended to indicate or imply that the device or component referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and are not to be construed as limiting the present patent, and the specific meaning of the terms described above will be understood by those of ordinary skill in the art according to the specific circumstances.
The invention relates to a building connection node and a construction method thereof, which explain the following embodiments according to the figures 1-4:
the first embodiment is as follows:
a building connection node comprises a prefabricated part, a cast-in-place part, a connection part and a sealing part, wherein the prefabricated part is fixedly connected with the cast-in-place part through the connection part and is sealed through the sealing part after forming an integral structure with the cast-in-place part; the prefabricated composite slab and the cast-in-place part can form a building floor, and the cast-in-place part is arranged above the prefabricated composite slab.
The prefabricated part comprises prefabricated columns, prefabricated beams and prefabricated laminated slabs, the prefabricated beams comprise prefabricated overturning beams, prefabricated overturning frame beams and prefabricated overturning secondary beams, and the prefabricated columns are fixedly connected with the two ends of the prefabricated overturning beams and the two ends of the prefabricated overturning frame beams respectively; two ends of the prefabricated turnover beam are fixedly connected with different prefabricated turnover beams respectively; the prefabricated composite slab is fixedly connected with the prefabricated beam and is fixedly connected in a polygonal framework formed by the prefabricated beam; the connecting part is a floor slab rib, the floor slab rib comprises a floor slab bottom rib and a floor slab gluten, one end of each of the floor slab bottom rib and the floor slab gluten is embedded in the prefabricated turning beam, the other end of each of the floor slab bottom rib and the floor slab gluten extends out of the prefabricated turning beam, the floor slab gluten is bent in the prefabricated turning beam, and a hook is arranged at the end part of the floor slab gluten extending out of the prefabricated turning beam; the sealing part is sealed in a mode of combining foam sealing with grouting material, the sealing part is arranged at the joint of the prefabricated overturning beam and the prefabricated composite slab, and the foam is arranged on the side part of the grouting material; and a shear groove is arranged between the bottom gluten embedded in the prefabricated turnover beam and the bottom gluten.
A construction method of a building connection node comprises the following steps:
the method comprises the following steps: according to the on-site hoisting construction requirement, marking the bottom end surface of the precast column and the butt joint surface of the precast beam;
step two: carrying out column supporting installation according to the elevation, placing a central cushion block at the center of the butt joint surface of the precast column to be installed and the precast beam, adjusting the bottom end surface of the precast column, aligning the butt joint marks of the precast column and the precast beam joint surface one by one, and carrying out operation steps of position detection, supporting locking and precision re-inspection; the column mounting support comprises a hoop fixing and lifting device and a quadrangular frustum pyramid shaped support, and the quadrangular frustum pyramid shaped support comprises a plurality of tubular edges; the hoop fixing and lifting device comprises an upper hoop, a lower hoop and a lifting device; openings are respectively arranged at one side of the upper anchor ear and one side of the lower anchor ear; a locking bolt is arranged at the opening; the upper hoop is hinged with the upper part of the tubular seamed edge; the lower hoop is hinged with the middle part of the tubular seamed edge; the lifting device comprises a rack with two ends respectively fixed on the upper and lower hoops and a hand-operated lifter in meshing transmission with the rack; the hand-operated lifter is also provided with a support hole for supporting a pre-buried screw rod in the prefabricated column.
Step three: paying off a precast beam, checking the column top elevation of the precast column, measuring and correcting the support elevation, and hoisting a part of precast turning beams;
step four: the supporting installation of the building floor is carried out, the elevation of the concrete on the bottom surface of the prefabricated overturning beam is checked according to the supporting installation of the building floor, the prefabricated composite slab is hoisted, the height difference of the joint of the prefabricated composite slab and the prefabricated beam is corrected after the hoisting is finished, and whether the width of the joint meets the design requirement is checked;
step five: and supporting and installing the rest precast beams, and installing the rest precast beams.
Example two:
a building connection node comprises a prefabricated part, a cast-in-place part, a connection part and a sealing part, wherein the prefabricated part is fixedly connected with the cast-in-place part through the connection part and is sealed through the sealing part after forming an integral structure with the cast-in-place part; the prefabricated composite slab and the cast-in-place part can form a building floor, and the cast-in-place part is arranged above the prefabricated composite slab.
The prefabricated part comprises prefabricated columns, prefabricated beams and prefabricated laminated slabs, the prefabricated beams comprise prefabricated turning beams, prefabricated turning frame beams and prefabricated turning secondary beams, and the prefabricated columns are fixedly connected with the two ends of the prefabricated turning beams and the two ends of the prefabricated turning frame beams respectively; two ends of the prefabricated turnover beam are fixedly connected with different prefabricated turnover beams respectively, and the prefabricated turnover beam embedded steel bar sleeves are stably connected at the connection position; the prefabricated composite slab and the prefabricated beam are fixedly connected and fixedly connected in a polygonal framework formed by the prefabricated beam. Prefabricated superimposed sheet with the prefabrication turns over the adjacent position of roof beam and adopts the step, with the prefabrication turns over the roof beam and forms the overlap joint position and paste the bottom surface of muscle at the bottom of the floor, nevertheless the prefabrication turns over the overlap joint position thickness that the roof beam formed and should not be less than 40mm thick, and the thickness at the overlap joint position of prefabricated superimposed sheet in the middle should not be less than 60mm thick. Prefabricated superimposed sheet with when precast beam formed the connection, prefabricated superimposed sheet enters into the reinforcing bar length of precast beam is more than or equal to and satisfies floor base muscle anchor length, and crosses the central line, generally takes 10mm in this embodiment.
Connecting portion are the floor muscle, the floor muscle includes muscle and floor gluten at the bottom of the floor, just the muscle at the bottom of the floor with the floor gluten has one end to inlay respectively and inserts in the prefabricated roof beam that turns over, the other end stretches out outside the prefabricated roof beam that turns over, just the floor gluten is in the prefabricated roof beam that turns over is interior to buckle, and buckles 15 times of length for the length of bar diameter, stretches out the prefabricated floor gluten tip crotch that turns over the roof beam, in this embodiment floor gluten tip adopts 135 degrees crotch. In the embodiment, the floor bottom ribs are designed with anchors, and the anchoring length is greater than or equal to 5 times of the diameter of the steel bar and passes through the center line of the precast beam; the length of the bent part of the floor slab gluten in the prefabricated turnover beam is 15 times of the diameter of the steel bar; the length of the flat and straight section of the floor gluten is 0.41 times of the lap joint length; the anchoring length of the floor slab bottom bar is greater than or equal to 5 times of the diameter of the steel bar and passes through the center line of the precast beam.
In the prefabricated overturning beam in the embodiment, the floor divides the prefabricated overturning beam into an upward overturning beam part and a downward overturning beam part, a seam 15 is reserved when the prefabricated overturning beam and the prefabricated composite slab are hoisted, and the width of the seam is generally 20mm and is used for construction error adjustment.
The sealing part is sealed in a mode of combining foam sealing with grouting material, the sealing part is arranged at the joint of the prefabricated overturning beam and the prefabricated composite slab, and the foam is arranged on the side part of the grouting material; and a shear groove is arranged between the bottom gluten embedded in the prefabricated turnover beam and the bottom gluten.
A construction method of a building connection node comprises the following steps:
the method comprises the following steps: according to the on-site hoisting construction requirement, marking the bottom end surface of the precast column and the butt joint surface of the precast beam;
step two: carrying out column supporting installation according to the elevation, placing a central cushion block at the center of the butt joint surface of the precast column to be installed and the precast beam, adjusting the bottom end surface of the precast column, aligning the butt joint marks of the precast column and the precast beam joint surface one by one, and carrying out operation steps of position detection, supporting locking and precision re-inspection; the column mounting support comprises a hoop fixing and lifting device and a quadrangular frustum pyramid shaped support, and the quadrangular frustum pyramid shaped support comprises a plurality of tubular edges; the hoop fixing and lifting device comprises an upper hoop, a lower hoop and a lifting device; openings are respectively arranged at one side of the upper anchor ear and one side of the lower anchor ear; a locking bolt is arranged at the opening; the upper hoop is hinged with the upper part of the tubular seamed edge; the lower hoop is hinged with the middle part of the tubular seamed edge; the lifting device comprises a rack with two ends respectively fixed on the upper and lower hoops and a hand-operated lifter in meshing transmission with the rack; the hand-operated lifter is also provided with a support hole for supporting a pre-buried screw rod in the prefabricated column. The position detection is to perform corresponding relative position detection on the installed precast beam and the precast column combination elevation; and the precision rechecking is that field construction personnel obtain required engineering data by measuring a pre-designed three-dimensional model or mark a selected structure by using the three-dimensional model. The construction progress 4D simulation is realized by giving time parameters to each unit model, the construction progress is analyzed by comparing with a planned progress and forming a curve graph or a cross-track graph, then correlation is carried out according to an analysis comparison result and a corresponding unit model, an information management database is established, and the construction accuracy is displayed through three-dimensional simulation, so that managers can conveniently master construction mileage and related construction information of corresponding stages.
Step three: paying off a precast beam, checking the column top elevation of the precast column, measuring and correcting the support elevation, and hoisting a part of precast turning beams;
step four: the supporting installation of the building floor is carried out, the elevation of the concrete on the bottom surface of the prefabricated overturning beam is checked according to the supporting installation of the building floor, the prefabricated composite slab is hoisted, the height difference of the joint of the prefabricated composite slab and the prefabricated beam is corrected after the hoisting is finished, and whether the width of the joint meets the design requirement is checked; the supporting and mounting of the building floor comprises a plurality of supporting components for supporting and a lifting supporting column of the corrugated board, wherein a screw rod column is arranged at the upper end of the lifting supporting column, the upper end of the screw rod column is connected with the supporting components, the screw rod column is sequentially provided with a corrugated board hanging piece which is sleeved on the screw rod column and can slide back and forth and a first adjusting nut matched with the screw rod column from top to bottom, the corrugated board hanging piece is provided with a hanging piece capable of hanging and carrying the corrugated board, the first adjusting nut is provided with a supporting part capable of supporting the corrugated board hanging piece, and the vertical position of the corrugated board hanging piece can be adjusted by rotating the first adjusting nut;
step five: supporting and installing the rest precast beams, and installing the rest precast beams; and hoisting the end parts at the two ends of the precast beam through anchoring ribs to further level, casting a concrete layer on the upper part of the precast composite slab, and casting concrete on the precast beam and the end parts at the two ends of the precast beam to integrate the precast turning beam, the precast turning secondary beam and the precast composite slab.
Example three:
a building connection node comprises a prefabricated part, a cast-in-place part, a connection part and a sealing part, wherein the prefabricated part is fixedly connected with the cast-in-place part through the connection part and is sealed through the sealing part after forming an integral structure with the cast-in-place part; the prefabricated composite slab and the cast-in-place part can form a building floor, and the cast-in-place part is arranged above the prefabricated composite slab.
The prefabricated part comprises prefabricated columns, prefabricated beams and prefabricated laminated slabs, the prefabricated beams comprise prefabricated turning beams, prefabricated turning frame beams and prefabricated turning secondary beams, and the prefabricated columns are fixedly connected with the two ends of the prefabricated turning beams and the two ends of the prefabricated turning frame beams respectively; two ends of the prefabricated turnover beam are fixedly connected with different prefabricated turnover beams respectively, and the prefabricated turnover beam embedded steel bar sleeves are stably connected at the connection position; the prefabricated composite slab and the prefabricated beam are fixedly connected and fixedly connected in a polygonal framework formed by the prefabricated beam. Prefabricated superimposed sheet with the prefabrication turns over the adjacent position of roof beam and adopts the step, with the prefabrication turns over the roof beam and forms the overlap joint position and paste the bottom surface of muscle at the bottom of the floor, nevertheless the prefabrication turns over the overlap joint position thickness that the roof beam formed and should not be less than 40mm thick, and the thickness at the overlap joint position of prefabricated superimposed sheet in the middle should not be less than 60mm thick. Prefabricated superimposed sheet with when precast beam formed the connection, prefabricated superimposed sheet enters into the reinforcing bar length of precast beam is more than or equal to and satisfies floor base muscle anchor length, and crosses the central line, generally takes 10mm in this embodiment.
Connecting portion are the floor muscle, the floor muscle includes muscle and floor gluten at the bottom of the floor, just the muscle at the bottom of the floor with the floor gluten has one end to inlay respectively and inserts in the prefabricated roof beam that turns over, the other end stretches out outside the prefabricated roof beam that turns over, just the floor gluten is in the prefabricated roof beam that turns over is interior to buckle, and buckles 15 times of length for the length of bar diameter, stretches out the prefabricated floor gluten tip crotch that turns over the roof beam, in this embodiment floor gluten tip adopts 135 degrees crotch. In the embodiment, the floor bottom ribs are designed with anchors, and the anchoring length is greater than or equal to 5 times of the diameter of the steel bar and passes through the center line of the precast beam; the length of the bent part of the floor slab gluten in the prefabricated turnover beam is 15 times of the diameter of the steel bar; the length of the flat and straight section of the floor gluten is 0.41 times of the lap joint length; the anchoring length of the floor slab bottom bar is greater than or equal to 5 times of the diameter of the steel bar and passes through the center line of the precast beam.
In the prefabricated overturning beam in the embodiment, the floor divides the prefabricated overturning beam into an upward overturning beam part and a downward overturning beam part, a seam 15 is reserved when the prefabricated overturning beam and the prefabricated composite slab are hoisted, and the width of the seam is generally 20mm and is used for construction error adjustment. And a plurality of stirrups are arranged in the precast beam.
The sealing part is sealed in a mode of combining foam sealing with grouting material, the sealing part is arranged at the joint of the prefabricated overturning beam and the prefabricated composite slab, and the foam is arranged on the side part of the grouting material; and a shear groove is arranged between the bottom gluten embedded in the prefabricated turnover beam and the bottom gluten.
A construction method of a building connection node comprises the following steps:
the method comprises the following steps: according to the on-site hoisting construction requirement, marking the bottom end surface of the precast column and the butt joint surface of the precast beam;
step two: carrying out column supporting installation according to the elevation, placing a central cushion block at the center of the butt joint surface of the precast column to be installed and the precast beam, adjusting the bottom end surface of the precast column, aligning the butt joint marks of the precast column and the precast beam joint surface one by one, and carrying out operation steps of position detection, supporting locking and precision re-inspection; the column mounting support comprises a hoop fixing and lifting device and a quadrangular frustum pyramid shaped support, and the quadrangular frustum pyramid shaped support comprises a plurality of tubular edges; the hoop fixing and lifting device comprises an upper hoop, a lower hoop and a lifting device; openings are respectively arranged at one side of the upper anchor ear and one side of the lower anchor ear; a locking bolt is arranged at the opening; the upper hoop is hinged with the upper part of the tubular seamed edge; the lower hoop is hinged with the middle part of the tubular seamed edge; the lifting device comprises a rack with two ends respectively fixed on the upper and lower hoops and a hand-operated lifter in meshing transmission with the rack; the hand-operated lifter is also provided with a support hole for supporting a pre-buried screw rod in the prefabricated column. The position detection is to perform corresponding relative position detection on the installed precast beam and the precast column combination elevation; and the precision rechecking is that field construction personnel obtain required engineering data by measuring a pre-designed three-dimensional model or mark a selected structure by using the three-dimensional model. The construction progress 4D simulation is realized by giving time parameters to each unit model, the construction progress is analyzed by comparing with a planned progress and forming a curve graph or a cross-track graph, then correlation is carried out according to an analysis comparison result and a corresponding unit model, an information management database is established, and the construction accuracy is displayed through three-dimensional simulation, so that managers can conveniently master construction mileage and related construction information of corresponding stages.
Step three: paying off a precast beam, checking the elevation of the top of the precast column, measuring and correcting the support elevation, hoisting a part of precast turning beams, and keeping the balance of the precast beam in the hoisting process and the rear end line after the hoisting is finished according to the paying off of the precast beam so as to ensure the stress rationality of the whole structure;
step four: the supporting installation of the building floor is carried out, the elevation of the concrete on the bottom surface of the prefabricated overturning beam is checked according to the supporting installation of the building floor, the prefabricated composite slab is hoisted, the height difference of the joint of the prefabricated composite slab and the prefabricated beam is corrected after the hoisting is finished, and whether the width of the joint meets the design requirement is checked; the supporting and mounting of the building floor comprises a plurality of supporting components for supporting and a lifting supporting column of the corrugated board, wherein a screw rod column is arranged at the upper end of the lifting supporting column, the upper end of the screw rod column is connected with the supporting components, the screw rod column is sequentially provided with a corrugated board hanging piece which is sleeved on the screw rod column and can slide back and forth and a first adjusting nut matched with the screw rod column from top to bottom, the corrugated board hanging piece is provided with a hanging piece capable of hanging and carrying the corrugated board, the first adjusting nut is provided with a supporting part capable of supporting the corrugated board hanging piece, and the vertical position of the corrugated board hanging piece can be adjusted by rotating the first adjusting nut;
step five: supporting and installing the rest precast beams, and installing the rest precast beams; hoisting the end parts of the two ends of the precast beam through anchoring ribs for further leveling, casting a concrete layer on the upper part of the precast composite slab in situ, and casting concrete on the precast beam and the end parts of the two ends of the precast beam to connect the precast turning beam, the precast turning secondary beam and the precast composite slab into a whole; or a plurality of lifting hooks and positioning ribs are buried in proper positions of the precast girders. The prefabricated column, the prefabricated downward-turning beam and the prefabricated composite slab are installed in sequence, the construction can be guaranteed to be carried out smoothly, the operation feasibility of construction is met, and the overall stress requirement of a building is met.
In sum, the prefabricated beam, the prefabricated column and the prefabricated composite slab are fixedly connected, cast-in-place concrete is reduced, construction is simpler and more convenient, construction efficiency and construction reliability are improved, reasonable stress can be guaranteed, construction safety is improved, and construction feasibility is improved.
Although the invention has been described above with reference to various embodiments, it should be understood that many changes and modifications may be made without departing from the scope of the invention. That is, the methods, systems, and devices discussed above are examples. Various configurations may omit, substitute, or add various procedures or components as appropriate. For example, in alternative configurations, the methods may be performed in an order different than that described, and/or various components may be added, omitted, and/or combined. Moreover, features described with respect to certain configurations may be combined in various other configurations, as different aspects and elements of the configurations may be combined in a similar manner. Further, elements therein may be updated as technology evolves, i.e., many elements are examples and do not limit the scope of the disclosure or claims.
Specific details are given in the description to provide a thorough understanding of the exemplary configurations including implementations. However, configurations may be practiced without these specific details, e.g., well-known circuits, processes, algorithms, structures, and techniques have been shown without unnecessary detail in order to avoid obscuring the configurations. This description provides example configurations only, and does not limit the scope, applicability, or configuration of the claims. Rather, the foregoing description of the configurations will provide those skilled in the art with an enabling description for implementing the described techniques. Various changes may be made in the function and arrangement of elements without departing from the spirit or scope of the disclosure.
It is intended that the foregoing detailed description be regarded as illustrative rather than limiting, and that it be understood that it is the following claims, including all equivalents, that are intended to define the spirit and scope of this invention. The above examples are to be construed as merely illustrative and not limitative of the remainder of the disclosure. After reading the description of the invention, the skilled person can make various changes or modifications to the invention, and these equivalent changes and modifications also fall into the scope of the invention defined by the claims.
Claims (9)
1. A building connection node is characterized by comprising a prefabricated part, a cast-in-place part, a connection part and a sealing part, wherein the prefabricated part is fixedly connected with the cast-in-place part through the connection part and is sealed through the sealing part after forming an integral structure with the cast-in-place part.
2. The building connection node as claimed in claim 1, wherein the prefabricated part comprises prefabricated columns, prefabricated beams and prefabricated laminated slabs, the prefabricated beams comprise prefabricated overturning beams, prefabricated overturning frame beams and prefabricated overturning secondary beams, and the prefabricated columns are fixedly connected with two ends of the prefabricated overturning beams and two ends of the prefabricated overturning frame beams respectively; two ends of the prefabricated turnover beam are fixedly connected with different prefabricated turnover beams respectively; the prefabricated composite slab and the prefabricated beam are fixedly connected and fixedly connected in a polygonal framework formed by the prefabricated beam.
3. A building connection node according to any preceding claim, wherein the prefabricated composite slab and the cast in place section are capable of forming a building floor.
4. A construction joint according to any preceding claim, wherein said cast in place portion is provided above said prefabricated composite slab.
5. A building connection node according to any one of the preceding claims, wherein the connection portion is a floor bar, the floor bar comprises a floor bottom bar and a floor gluten, and the floor bottom bar and the floor gluten respectively have one end inserted into the prefabricated tilt beam and the other end extending out of the prefabricated tilt beam, and the floor gluten is bent in the prefabricated tilt beam and extends out of the end hook of the floor gluten of the prefabricated tilt beam.
6. A building connection node according to any of the preceding claims, wherein said sealing means is sealed by means of a foam plug in combination with grout, and said sealing means is provided at the junction of said precast turning beam and said precast composite slab, and said foam is provided at the side of said grout.
7. A building connection node according to any preceding claim, wherein shear grooves are provided between the floor gluten embedded in the precast girders and the floor reinforcement.
8. A construction method of a building connection node is characterized by comprising the following steps:
the method comprises the following steps: according to the on-site hoisting construction requirement, marking the bottom end surface of the precast column and the butt joint surface of the precast beam;
step two: carrying out column supporting installation according to the elevation, placing a central cushion block at the center of the butt joint surface of the precast column to be installed and the precast beam, adjusting the bottom end surface of the precast column, aligning the butt joint marks of the precast column and the precast beam joint surface one by one, and carrying out operation steps of position detection, supporting locking and precision re-inspection;
step three: paying off a precast beam, checking the column top elevation of the precast column, measuring and correcting the support elevation, and hoisting a part of precast turning beams;
step four: the supporting installation of the building floor is carried out, the elevation of the concrete on the bottom surface of the prefabricated overturning beam is checked according to the supporting installation of the building floor, the prefabricated composite slab is hoisted, the height difference of the joint of the prefabricated composite slab and the prefabricated beam is corrected after the hoisting is finished, and whether the width of the joint meets the design requirement is checked;
step five: and supporting and installing the rest precast beams, and installing the rest precast beams.
9. A method of constructing a building connection node according to any of the preceding claims, wherein said column mounting supports comprise hoop fixing lifting means and a quadrangular frustum pyramid shaped bracket, and said quadrangular frustum pyramid shaped bracket comprises a plurality of tubular edges; the hoop fixing and lifting device comprises an upper hoop, a lower hoop and a lifting device; openings are respectively arranged at one side of the upper anchor ear and one side of the lower anchor ear; a locking bolt is arranged at the opening; the upper hoop is hinged with the upper part of the tubular seamed edge; the lower hoop is hinged with the middle part of the tubular seamed edge; the lifting device comprises a rack with two ends respectively fixed on the upper and lower hoops and a hand-operated lifter in meshing transmission with the rack; the hand-operated lifter is also provided with a support hole for supporting a pre-buried screw rod in the prefabricated column.
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| CN201910871645.5A CN110644624A (en) | 2019-09-16 | 2019-09-16 | Building connection node and construction method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112031160A (en) * | 2020-09-14 | 2020-12-04 | 合肥建设装饰(集团)有限责任公司 | Prefabricated column and prefabricated beam connecting structure and method of prefabricated building frame structure |
| CN112282098A (en) * | 2020-10-20 | 2021-01-29 | 华侨大学 | Steel bar bending type connecting node of combined shear wall and floor slab and construction method thereof |
| CN112854479A (en) * | 2021-03-04 | 2021-05-28 | 羿射旭减隔震张家口有限公司 | Assembled building beam column node |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102900168A (en) * | 2012-10-08 | 2013-01-30 | 沈阳建筑大学 | Splitting and assembling structure and assembling connecting method of assembled type concrete frame-shear wall |
| CA2887945A1 (en) * | 2012-10-17 | 2014-04-24 | Matthew John LUBBERTS | Building systems and methods with panel subassemblies |
| CN106013435A (en) * | 2016-07-18 | 2016-10-12 | 江苏工程职业技术学院 | Node fixing structure for prefabricated structure type end beam column and mounting method |
| CN106013811A (en) * | 2016-05-13 | 2016-10-12 | 李藏柱 | Mounting method of prefabricated building |
| CN107090908A (en) * | 2017-05-09 | 2017-08-25 | 广东省建筑科学研究院集团股份有限公司 | A kind of new vertical prefabricated components joint connecting method |
| CN207177029U (en) * | 2017-08-30 | 2018-04-03 | 刘祥锦 | A kind of plate-column structure assembling system and floor prefabricated components |
| CN108978994A (en) * | 2018-08-20 | 2018-12-11 | 广州建筑产业研究院有限公司 | A kind of assembly method of precast beam unit and its gluten |
| CN109653439A (en) * | 2019-01-18 | 2019-04-19 | 长沙远大住宅工业集团股份有限公司 | Overlap column connected node and its construction method |
| CN109779270A (en) * | 2019-02-22 | 2019-05-21 | 阳光学院 | A kind of prefabricated post mounting device |
| CN110093978A (en) * | 2019-05-28 | 2019-08-06 | 广东联城住工装备信息科技有限公司 | Connecting joint structure, the construction method of connecting joint structure and assembled architecture |
-
2019
- 2019-09-16 CN CN201910871645.5A patent/CN110644624A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102900168A (en) * | 2012-10-08 | 2013-01-30 | 沈阳建筑大学 | Splitting and assembling structure and assembling connecting method of assembled type concrete frame-shear wall |
| CA2887945A1 (en) * | 2012-10-17 | 2014-04-24 | Matthew John LUBBERTS | Building systems and methods with panel subassemblies |
| CN106013811A (en) * | 2016-05-13 | 2016-10-12 | 李藏柱 | Mounting method of prefabricated building |
| CN106013435A (en) * | 2016-07-18 | 2016-10-12 | 江苏工程职业技术学院 | Node fixing structure for prefabricated structure type end beam column and mounting method |
| CN107090908A (en) * | 2017-05-09 | 2017-08-25 | 广东省建筑科学研究院集团股份有限公司 | A kind of new vertical prefabricated components joint connecting method |
| CN207177029U (en) * | 2017-08-30 | 2018-04-03 | 刘祥锦 | A kind of plate-column structure assembling system and floor prefabricated components |
| CN108978994A (en) * | 2018-08-20 | 2018-12-11 | 广州建筑产业研究院有限公司 | A kind of assembly method of precast beam unit and its gluten |
| CN109653439A (en) * | 2019-01-18 | 2019-04-19 | 长沙远大住宅工业集团股份有限公司 | Overlap column connected node and its construction method |
| CN109779270A (en) * | 2019-02-22 | 2019-05-21 | 阳光学院 | A kind of prefabricated post mounting device |
| CN110093978A (en) * | 2019-05-28 | 2019-08-06 | 广东联城住工装备信息科技有限公司 | Connecting joint structure, the construction method of connecting joint structure and assembled architecture |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112031160A (en) * | 2020-09-14 | 2020-12-04 | 合肥建设装饰(集团)有限责任公司 | Prefabricated column and prefabricated beam connecting structure and method of prefabricated building frame structure |
| CN112282098A (en) * | 2020-10-20 | 2021-01-29 | 华侨大学 | Steel bar bending type connecting node of combined shear wall and floor slab and construction method thereof |
| CN112854479A (en) * | 2021-03-04 | 2021-05-28 | 羿射旭减隔震张家口有限公司 | Assembled building beam column node |
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