CN113718948A - Prefabricated concrete structure folding type beam column connecting node and construction method - Google Patents
Prefabricated concrete structure folding type beam column connecting node and construction method Download PDFInfo
- Publication number
- CN113718948A CN113718948A CN202110994763.2A CN202110994763A CN113718948A CN 113718948 A CN113718948 A CN 113718948A CN 202110994763 A CN202110994763 A CN 202110994763A CN 113718948 A CN113718948 A CN 113718948A
- Authority
- CN
- China
- Prior art keywords
- column
- semi
- steel plate
- holes
- cylindrical connecting
- 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.)
- Granted
Links
- 238000010276 construction Methods 0.000 title claims abstract description 23
- 239000004567 concrete Substances 0.000 title claims abstract description 22
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 200
- 239000010959 steel Substances 0.000 claims abstract description 200
- 238000004873 anchoring Methods 0.000 claims abstract description 26
- 238000005452 bending Methods 0.000 claims abstract description 7
- 239000011376 self-consolidating concrete Substances 0.000 claims abstract description 4
- 238000005520 cutting process Methods 0.000 claims description 18
- 239000011178 precast concrete Substances 0.000 claims description 13
- 238000000034 method Methods 0.000 claims description 8
- 230000002787 reinforcement Effects 0.000 claims description 7
- 238000012423 maintenance Methods 0.000 claims description 5
- 238000012545 processing Methods 0.000 claims description 5
- 238000010008 shearing Methods 0.000 claims description 3
- 230000003014 reinforcing effect Effects 0.000 claims description 2
- 239000000463 material Substances 0.000 abstract description 2
- 238000005266 casting Methods 0.000 abstract 2
- 238000010586 diagram Methods 0.000 description 8
- 238000003466 welding Methods 0.000 description 7
- 230000008901 benefit Effects 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Images
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
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/20—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of concrete, e.g. reinforced concrete, or other stonelike material
- E04B1/21—Connections specially adapted therefor
- E04B1/215—Connections specially adapted therefor comprising metallic plates or parts
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/38—Connections for building structures in general
- E04B1/41—Connecting devices specially adapted for embedding in concrete or masonry
- E04B1/4114—Elements with sockets
- E04B1/4142—Elements with sockets with transverse hook- or loop-receiving parts
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
- E04C5/16—Auxiliary parts for reinforcements, e.g. connectors, spacers, stirrups
- E04C5/162—Connectors or means for connecting parts for reinforcements
-
- 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
- E04B1/41—Connecting devices specially adapted for embedding in concrete or masonry
- E04B2001/4192—Connecting devices specially adapted for embedding in concrete or masonry attached to concrete reinforcing elements, e.g. rods or wires
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Joining Of Building Structures In Genera (AREA)
Abstract
The invention discloses a prefabricated concrete structure folding beam-column connecting node and a construction method, wherein anchoring steel bars and semi-cylindrical connecting blocks are welded on two side surfaces of a beam-end steel plate and a column-end steel plate, concrete is used for integrally casting with a beam body and a column body, the beam-end steel plate is arranged on the surface of the beam body, the column-end steel plate is arranged on the surface of the column body, an inclined rod with a hole and a horizontal rod with a hole are arranged between every two semi-cylindrical connecting blocks, short steel bars are inserted into parallel holes for connection, and then self-compacting concrete is used for casting beam-column connecting positions. According to the invention, by utilizing the truss stress principle, the upper horizontal rod and the lower horizontal rod are respectively stressed by tension and pressure, the bending moment at the node part is transmitted, the inclined web member is stressed by tension or pressure, the shear force in the node area is transmitted, and the stress modes of the bending moment and the shear force are converted into the tension and the pressure of the rod member, so that the material utilization rate is improved.
Description
Technical Field
The patent of the invention relates to the field of assembled, concrete and link nodes, in particular to a beam-column connecting node.
Background
Compared with a cast-in-place concrete structure, the cast-in-place concrete structure has the advantages that original cast-in-place operation is greatly reduced, a large number of building components are produced and processed in a workshop, meanwhile, the integrated design and construction are realized, the construction period is shortened, the cost is reduced, the industrialization of the building industry is facilitated, and good economic benefit and environmental adaptability are realized. In the early 80 s of the last century, fabricated building structure systems were first applied to the building industry, but improper node treatment has fallen into a bottleneck. In recent years, with the increase of the national economic level, the assembly type building becomes the main development direction and trend of the building industry again. The existing fabricated building generally has the problem of weak beam-column connection nodes, and a part of structural systems with good seismic resistance still have the problems of complex connection, inconvenience for construction of workers and the like, so that the invention of the fabricated node structure with good seismic resistance and simple connection is the current main problem. The invention is designed for an assembled node, does not need on-site welding, is simple and easy to assemble related components on site, and greatly saves corresponding labor and time cost while ensuring safety.
Disclosure of Invention
The invention aims to provide a folding beam-column connecting node with a precast concrete structure and a construction method aiming at the defects of the prior art.
The purpose of the invention is realized by the following technical scheme: the utility model provides a foldable beam column connected node of precast concrete structure, mainly includes anchor reinforcing bar, semi-cylindrical connecting block, beam-ends steel sheet, column end steel sheet, the roof beam body, cylinder, foraminiferous down tube, foraminiferous horizontal rod and short steel bar.
One side of the beam-end steel plate is fixedly connected to the beam body through an anchoring steel bar, a plurality of groups of semi-cylindrical connecting blocks with round holes are fixedly arranged at the upper end and the lower end of the other side of the beam-end steel plate, each group is provided with two semi-cylindrical connecting blocks and is connected through a short steel bar, the short steel bar is inserted into the round holes of the semi-cylindrical connecting blocks, and the semi-cylindrical connecting blocks at the upper end and the lower end of the beam-end steel plate are arranged in parallel and correspond to each other one by one;
one side of the column end steel plate is fixedly connected to the column body through anchoring steel bars, and the other side of the column end steel plate is fixedly provided with groups of semi-cylindrical connecting blocks which are consistent with the semi-cylindrical connecting blocks on the beam end steel plate, the semi-cylindrical connecting blocks on the beam end steel plate correspond to the semi-cylindrical connecting blocks on the column end steel plate one by one, and the semi-cylindrical connecting blocks in each group on the column end steel plate are also connected through short steel bars;
inclined rods with holes and horizontal rods with holes are connected between each group of semi-cylindrical connecting blocks at the upper end and the lower end of the beam-end steel plate and each group of semi-cylindrical connecting blocks corresponding to the upper end and the lower end of the column-end steel plate; two ends of the inclined rod with holes are respectively connected between the upper end of the beam-end steel plate and the lower end of the column-end steel plate and between the lower end of the beam-end steel plate and the upper end of the column-end steel plate; the horizontal rods with holes are respectively connected between the upper end of the beam-end steel plate and the upper end of the column-end steel plate and between the lower end of the beam-end steel plate and the lower end of the column-end steel plate;
the inclined rod with the holes and the two ends of the horizontal rod with the holes are provided with through holes, and the short steel rods between the two semi-cylindrical connecting blocks of each group are inserted into the through holes of the inclined rod with the holes and the through holes of the horizontal rod with the holes to be connected and fixed.
Further, the distance between two semi-cylindrical connecting blocks in each group is the same, and the distance between each group is also the same.
Furthermore, the diameters of the holes in the semi-cylindrical connecting block, the inclined rod with the holes and the horizontal rod with the holes are equal and larger than the diameter of the short steel rod.
Further, the semi-cylindrical connecting block is semi-circular in shape and has a thickness not less than 2 times the diameter of the short steel rod.
Further, the perforated diagonal rod can be in the shape of a round steel pipe, a rectangular steel pipe, or a round steel bar or a rectangular steel bar.
Furthermore, the shape of the horizontal rod with the hole can adopt a nicked steel bar, a ribbed steel bar or a ribbed steel bar.
Furthermore, the length of the short steel bar is larger than the sum of the total thickness of the two semi-cylindrical connecting blocks in each group and the diameter of the two inclined rods with holes and the diameter of the two horizontal rods with holes, the short steel bar is in a circular shape, and the surface of the short steel bar is smooth.
Furthermore, the horizontal rods with holes and the inclined rods with holes are rotatably connected with the short steel bars, so that the horizontal rods and the inclined rods can be folded at the beam end or the column end.
The invention also discloses a construction method of the folding beam-column connecting node of the precast concrete structure, which comprises the following construction steps:
the method comprises the following steps: calculating the length of an anchoring steel bar according to the standard anchoring requirement of concrete or calculating the stress performance of a beam-column connecting node, cutting the anchoring steel bar, calculating the size of a beam-end steel plate according to the stress of the beam-column node, cutting and blanking, calculating the size of a column-end steel plate, cutting and blanking, calculating the diameter and the length of a perforated inclined rod according to the shearing resistance requirement of the node, cutting and blanking, calculating the diameter and the length of a perforated horizontal rod according to the bending resistance bearing capacity requirement of the node, and cutting and blanking;
step two: calculating the diameter and length of the short steel bar and the size and thickness of the aperture of the semi-cylindrical connecting block according to the tension borne by the inclined rod with the hole and the horizontal rod with the hole, processing the semi-cylindrical connecting block according to the calculation result, and cutting and blanking the short steel bar;
step three: fixing the anchoring steel bars on one side of the beam-end steel plate and the column-end steel plate, and fixing the processed semi-cylindrical connecting blocks on the other side of the beam-end steel plate and the column-end steel plate;
step four: fixing a beam end steel plate with an anchoring steel bar and a semi-cylindrical connecting block and a steel reinforcement cage of the beam, and pouring concrete for maintenance;
step five: a steel reinforcement cage which is fixed with a column end steel plate and a column which are connected by an anchoring steel bar and a semi-column, and is poured with concrete for curing;
step six: inserting a horizontal rod with a hole into a gap of the semi-cylindrical connecting block at one end of the beam body in a factory, ensuring that the holes are parallel to each other, repeating the steps at the other end of the beam body, staggering the two rod pieces in spatial positions, and inserting a short steel bar into the parallel hole;
step seven: all components are transported to the site, the horizontal rods with holes are rotated, the other sides of the horizontal rods are positioned in the gaps of the semi-cylindrical connecting blocks of the cylinders, the holes are ensured to be parallel to each other, the short steel rods in the semi-cylindrical connecting blocks are taken out, the inclined rods with holes are placed in the gaps of the semi-cylindrical connecting blocks, the holes are ensured to be parallel to each other, and the short steel rods are inserted into all the parallel holes.
Step eight: and erecting a template at the connecting part of the beam body and the column body, pouring self-compacting concrete, and maintaining.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, by utilizing the truss stress principle, the upper horizontal rod and the lower horizontal rod are respectively stressed by tension and pressure, the bending moment at the node part is transmitted, the inclined web member is stressed by tension or pressure, the shear force in the node area is transmitted, and the stress modes of the bending moment and the shear force are converted into the tension and the pressure of the rod member, so that the material utilization rate is improved.
2. The beam, the column and the beam column connecting rod piece are produced in batches in a prefabricating factory, so that the production efficiency is high, the product quality is good, a large number of scaffolds and templates can be saved during field construction, the manpower and operation tools for floor construction can be reduced, the labor intensity is reduced, and the beam, the column and the beam column connecting rod piece have the advantages of high construction speed and low construction cost.
4. The invention has simple structure and low assembly difficulty, only needs to rotate the horizontal rod on site, simultaneously installs the inclined rod, adopts an alternate mode, does not need welding, has small site assembly construction amount, is more convenient and simple, and improves the construction speed and efficiency. Meanwhile, the requirements on the concrete and the cast-in-place quality are not high, the relative environmental influence is small, and the construction cost is low.
5. Compared with a cast-in-place integral type structure, the invention avoids the problems of large reinforcement quantity, complex structure, difficult concrete pouring, high construction precision requirement, complex process and the like in a node area.
Drawings
FIG. 1: a folding beam column node perspective view;
FIG. 2: a schematic diagram of beam-end steel plate welding;
FIG. 3: a column end steel plate welding schematic diagram;
FIG. 4: a semi-cylindrical connecting block schematic diagram;
FIG. 5: a schematic view of a perforated diagonal bar;
FIG. 6: a schematic view of a perforated horizontal bar;
FIG. 7: a short steel bar schematic diagram;
FIG. 8: a schematic diagram of a folding process;
FIG. 9: a folding and unfolding schematic diagram;
FIG. 10: a construction site connection completion schematic diagram;
FIG. 11: drawing a beam end steel plate;
FIG. 12: and (5) a column end steel plate diagram.
Detailed Description
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.
As shown in fig. 1-12, the invention provides a folding beam-column connection node of a precast concrete structure, which mainly comprises an anchoring steel bar 1, a semi-cylindrical connection block 2, a beam-end steel plate 3, a column-end steel plate 4, a beam body 6, a column body 7, a perforated diagonal bar 8, a perforated horizontal bar 9 and a short steel bar 10.
One side of the beam-end steel plate 3 is fixedly connected to a beam body 6 through an anchoring steel bar 1, a plurality of groups of semi-cylindrical connecting blocks 2 with round holes are fixedly arranged at the upper end and the lower end of the other side of the beam-end steel plate, the distance between two semi-cylindrical connecting blocks 2 in each group is the same, and the distance between each group is also the same; each group is provided with two semi-cylindrical connecting blocks 2 and connected through short steel bars 10, the short steel bars 10 are inserted into round holes of the semi-cylindrical connecting blocks 2, and the semi-cylindrical connecting blocks 2 at the upper end and the lower end of the beam-end steel plate 3 are arranged in parallel and correspond to each other one by one;
one side of the column end steel plate 4 is fixedly connected to the column body 7 through the anchoring steel bar 1, the other side of the column end steel plate is fixedly provided with the semi-cylindrical connecting blocks 2 with the number consistent with that of the beam end steel plate 3, the semi-cylindrical connecting blocks 2 on the beam end steel plate 3 correspond to the semi-cylindrical connecting blocks 2 on the column end steel plate 4 one by one, and the semi-cylindrical connecting blocks 2 in each group on the column end steel plate 4 are also connected through the short steel bars 10;
inclined rods 8 with holes and horizontal rods 9 with holes are connected between each group of semi-cylindrical connecting blocks 2 at the upper end and the lower end of the beam-end steel plate 3 and each group of semi-cylindrical connecting blocks 2 corresponding to the upper end and the lower end of the column-end steel plate 4; two ends of the inclined rod 8 with holes are respectively connected between the upper end of the beam-end steel plate 3 and the lower end of the column-end steel plate 4 and between the lower end of the beam-end steel plate 3 and the upper end of the column-end steel plate 4; the horizontal rods 9 with holes are respectively connected between the upper end of the beam-end steel plate 3 and the upper end of the column-end steel plate 4 and between the lower end of the beam-end steel plate 3 and the lower end of the column-end steel plate 4;
both ends of the inclined rod 8 with holes and both ends of the horizontal rod 9 with holes are provided with through holes, and the short steel bar 10 between each two semi-cylindrical connecting blocks 2 is inserted into the through holes of the inclined rod 8 with holes and the horizontal rod 9 with holes to be connected and fixed.
The diameters of the holes in the semi-cylindrical connecting block 2, the inclined rod 8 with the holes and the horizontal rod 9 with the holes are equal and larger than the diameter of the short steel rod 10. The semi-cylindrical connecting block 2 is semi-circular in shape and has a certain thickness.
The shape of the inclined rod 8 with the holes can adopt a round steel pipe, a rectangular steel pipe, or a round steel bar or a rectangular steel bar. The shape of the horizontal rod 9 with the hole can adopt a nicked steel bar, a ribbed steel bar or a ribbed steel bar.
The length of the short steel bar 10 is larger than the sum of the total thickness of the two semi-cylindrical connecting blocks 2 in each group, the diameter of the two inclined rods 8 with holes and the diameter of the two horizontal rods with holes, the short steel bar is in a circular shape, and the surface of the short steel bar is smooth, as shown in figure 7.
The perforated horizontal bar 9 can be rotated around a short steel bar 10 so that it can be folded at the beam or column end.
The invention also provides a construction method of the assembled beam-column connecting joint, which comprises the following construction steps;
the method comprises the following steps: calculating the length of an anchoring steel bar 1 according to the standard anchoring requirement of concrete or calculating the stress performance of a beam-column connecting node, cutting the anchoring steel bar 1, calculating the size of a beam-end steel plate 3 according to the stress of the beam-column node, cutting and blanking, calculating the size of a column-end steel plate 4, cutting and blanking, calculating the diameter and the length of a perforated inclined rod 8 according to the shearing resistance requirement of the node, cutting and blanking, calculating the diameter and the length of a perforated horizontal rod 9 according to the bending resistance bearing capacity requirement of the node, and cutting and blanking;
step two: calculating the diameter of a short steel bar 10 according to the tension force borne by a perforated inclined rod 8 and a horizontal rod 9, calculating the aperture of a semi-cylindrical connecting block 2 according to the diameter of a short steel bar plate 10, wherein the thickness of the semi-cylindrical connecting block 2 is not less than 2 times of the diameter of the short steel bar, calculating the length of the short steel bar 10, processing the semi-cylindrical connecting block 2 according to the calculation result, and cutting, blanking, processing and polishing the short steel bar 10 to be smooth;
step three: in a factory, welding the blanked anchoring steel bar 1 with one side of a beam-end steel plate 3 and one side of a column-end steel plate 4, and welding the processed semi-cylindrical connecting block 2 with the other side of the beam-end steel plate 3 and the column-end steel plate 4;
step four: a beam end steel plate 3 fixedly welded with an anchoring steel bar 1 and a semi-cylindrical connecting block 2 and a steel reinforcement cage of a beam, and concrete is poured for maintenance until the strength of the concrete reaches the design strength;
step five: fixedly welding a column end steel plate 4 with an anchoring steel bar 1 and a semi-cylindrical connection 2 and a steel reinforcement cage of the column, and pouring concrete for maintenance until the strength of the concrete reaches the design strength;
step six: in a factory, the horizontal rods 9 with holes are inserted into the gaps of the semi-cylindrical connecting blocks 2 at one end of the beam body 7, the holes are ensured to be parallel to each other, the steps are repeated at the other end of the beam body 6, two rod pieces are staggered in spatial positions, short steel rods 10 are inserted into the parallel holes, all the horizontal rods 9 with holes are folded inwards, and the folding process is shown in figure 8. The horizontal rod 9 with holes connected with the beam body 7 is required to rotate to one side of the beam body with a solid body for folding; after being folded, the horizontal part 9 with holes is fixed temporarily to prevent the deformation of the rod piece caused by stress during transportation.
Step seven: all the components are transported to the site, the horizontal rods 9 with holes are rotated, the other side of the horizontal rods is positioned in the gaps of the semi-cylindrical connecting blocks 2 of the cylinders 6, holes are ensured to be parallel to each other, the short steel rods 10 in the semi-cylindrical connecting blocks are taken out, the inclined rods 8 with holes are placed in the gaps of the semi-cylindrical connecting blocks, holes are ensured to be parallel to each other, the short steel rods 10 are inserted into all the parallel holes, the assembling process is shown in figure 9, and the connecting nodes are shown in figure 10 after the assembling is completed. When the inclined rod with holes 8 is installed, the short steel rod 10 does not need to be completely pulled out, and only a part of the short steel rod needs to be pulled out and can be inserted into the inclined rod with holes 8, so that the horizontal rod with holes 9 can be ensured to be firmly sleeved on the short steel rod 10.
Step eight: and erecting a template at the connecting part of the column body 6 and the beam body 7, pouring self-compacting concrete, and maintaining until the concrete reaches the designed strength.
The invention is used for standardized fabricated concrete structural engineering with large scale and wide range, such as large-area residential buildings, large-area public rental houses and other projects, the structural size of the beam column of the projects is not changed greatly, the beam column can be unified in size, standardized production is carried out in factories, so that the joint connecting part components can be produced in a standardized manner, field installation is carried out, the processing, manufacturing and construction procedures can be greatly simplified, the efficiency is improved, and the economic benefit is improved.
The above-described embodiments are intended to illustrate rather than to limit the invention, and any modifications and variations of the present invention are within the spirit of the invention and the scope of the appended claims.
Claims (9)
1. The utility model provides a foldable beam column connected node of precast concrete structure which characterized in that mainly includes anchor reinforcing bar (1), semi-cylinder connecting block (2), beam-ends steel sheet (3), column-ends steel sheet (4), roof beam body (6), cylinder (7), foraminiferous down tube (8), foraminiferous horizontal rod (9) and short steel stick (10).
One side of the beam-end steel plate (3) is fixedly connected to the beam body (6) through an anchoring steel bar (1), a plurality of groups of semi-cylindrical connecting blocks (2) with round holes are fixedly arranged at the upper end and the lower end of the other side of the beam-end steel plate, each group is provided with two semi-cylindrical connecting blocks (2) and is connected through a short steel bar (10), the short steel bars (10) are inserted into the round holes of the semi-cylindrical connecting blocks (2), and the semi-cylindrical connecting blocks (2) at the upper end and the lower end of the beam-end steel plate (3) are arranged in parallel and are in one-to-one correspondence;
one side of the column end steel plate (4) is fixedly connected to the column body (7) through an anchoring steel bar (1), the other side of the column end steel plate is fixedly provided with groups of semi-cylindrical connecting blocks (2) which are consistent with the groups on the beam end steel plate (3), the semi-cylindrical connecting blocks (2) on the beam end steel plate (3) correspond to the semi-cylindrical connecting blocks (2) on the column end steel plate (4) one by one, and the semi-cylindrical connecting blocks (2) in each group on the column end steel plate (4) are also connected through short steel bars (10);
each group of semi-cylindrical connecting blocks (2) at the upper end and the lower end of the beam-end steel plate (3) and each group of semi-cylindrical connecting blocks (2) corresponding to the upper end and the lower end of the column-end steel plate (4) are connected with a perforated diagonal rod (8) and a perforated horizontal rod (9); two ends of the inclined rod (8) with the holes are respectively connected between the upper end of the beam-end steel plate (3) and the lower end of the column-end steel plate (4) and between the lower end of the beam-end steel plate (3) and the upper end of the column-end steel plate (4); the horizontal rods (9) with holes are respectively connected between the upper end of the beam-end steel plate (3) and the upper end of the column-end steel plate (4) and between the lower end of the beam-end steel plate (3) and the lower end of the column-end steel plate (4);
both ends of the inclined rod (8) with the holes and the horizontal rod (9) with the holes are provided with through holes, and the short steel rod (10) between the two semi-cylindrical connecting blocks (2) of each group is inserted into the through holes of the inclined rod (8) with the holes and the horizontal rod (9) with the holes to be connected and fixed.
2. A precast concrete structure folding beam column connection node according to claim 1, characterized in that the distance between the two semi-cylindrical connection blocks (2) in each group is the same, and the distance between each group is also the same.
3. The folding beam-column connection node of a precast concrete structure as claimed in claim 1, wherein the holes on the semi-cylindrical connection block (2), the inclined rod (8) with holes and the horizontal rod (9) with holes have the same diameter and are larger than the diameter of the short steel rod (10).
4. The folding beam-column connection node of a precast concrete structure according to claim 1, wherein the semi-cylindrical connection block (2) is shaped as a semicircle having a thickness not less than 2 times the diameter of the short steel rod (10).
5. The folding beam-column connection node of precast concrete structure as claimed in claim 1, wherein the perforated diagonal rods (8) are in the shape of circular steel pipes, rectangular steel pipes, or circular steel bars or rectangular steel bars.
6. The folding beam-column connection node of precast concrete structure as claimed in claim 1, wherein the perforated horizontal bar (9) is in the shape of a scored steel bar, a ribbed steel bar or a ribbed steel bar.
7. A precast concrete structure folding beam column connection node according to claim 1, characterized in that the length of the short steel bar (10) is greater than the total thickness of the two semi-cylindrical connection blocks (2) in each set plus the sum of the diameter of the two inclined rods (8) with holes plus the diameter of the two horizontal rods with holes, and the shape of the short steel bar is a round steel bar.
8. A precast concrete structure folding beam column connection node according to claim 1, characterized in that the horizontal bar with holes (9) and the diagonal bar with holes (8) are rotatably connected with the short steel bar (10) so as to be folded at the beam end or the column end.
9. A construction method of a folding beam-column connection node of a precast concrete structure based on any one of claims 1 to 8, characterized in that the construction steps are as follows;
the method comprises the following steps: calculating the length of an anchoring steel bar (1) according to the standard anchoring requirement of concrete or the stress performance of a beam-column connecting node, cutting the anchoring steel bar (1), calculating the size of a beam-end steel plate (3) according to the stress of the beam-column node, cutting and blanking, calculating the size of a column-end steel plate (4), cutting and blanking, calculating the diameter and the length of a perforated diagonal rod (8) according to the shearing resistance requirement of the node, cutting and blanking, calculating the diameter and the length of a perforated horizontal rod (9) according to the bending resistance bearing capacity requirement of the node, and cutting and blanking;
step two: calculating the diameter and the length of the short steel bar (10) and the size and the thickness of the aperture of the semi-cylindrical connecting block (2) according to the tension borne by the inclined rod (8) with the hole and the horizontal rod (9) with the hole, processing the semi-cylindrical connecting block (2) according to the calculation result, and cutting and blanking the short steel bar (10);
step three: fixing an anchoring steel bar (1) at one side of a beam-end steel plate (3) and a column-end steel plate (4), and fixing a processed semi-cylindrical connecting block (2) at the other side of the beam-end steel plate (3) and the column-end steel plate (4);
step four: a beam end steel plate (3) fixed with an anchoring steel bar (1) and a semi-cylindrical connecting block (2) and a steel reinforcement cage of a beam, and concrete (5) is poured for maintenance;
step five: a column end steel plate (4) fixedly connected with an anchoring steel bar (1) and a semi-cylinder (2) and a steel reinforcement cage of the column, and concrete (5) is poured for maintenance;
step six: in a factory, inserting the horizontal rods (9) with holes into the gaps of the semi-cylindrical connecting blocks (2) at one end of the beam body (6) and ensuring that the holes are parallel to each other, repeating the steps at the other end of the beam body (6) and staggering the two rod pieces in spatial positions, inserting short steel bars (10) into the parallel holes, and folding all the horizontal rods (9) with holes inwards;
step seven: all components are transported to the site, the horizontal rods (9) with holes are rotated, the other side of the horizontal rods is positioned in the gaps of the semi-cylindrical connecting blocks (2) of the cylinders (7) and ensures that the holes are parallel to each other, the short steel rods (10) in the semi-cylindrical connecting blocks are taken out, the inclined rods (8) with holes are placed in the gaps of the semi-cylindrical connecting blocks (2) and ensure that the holes are parallel to each other, and the short steel rods (10) are inserted into all the parallel holes.
Step eight: and erecting a template at the connecting part of the beam body (6) and the column body (7), pouring self-compacting concrete, and maintaining.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110994763.2A CN113718948B (en) | 2021-08-27 | 2021-08-27 | Prefabricated concrete structure folding type beam column connecting node and construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110994763.2A CN113718948B (en) | 2021-08-27 | 2021-08-27 | Prefabricated concrete structure folding type beam column connecting node and construction method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113718948A true CN113718948A (en) | 2021-11-30 |
| CN113718948B CN113718948B (en) | 2022-06-17 |
Family
ID=78678419
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110994763.2A Active CN113718948B (en) | 2021-08-27 | 2021-08-27 | Prefabricated concrete structure folding type beam column connecting node and construction method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113718948B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105888134A (en) * | 2015-02-16 | 2016-08-24 | 权容觐 | Prefabricated Truss-Embedded Composite Beam |
| CN207348219U (en) * | 2017-09-19 | 2018-05-11 | 曲周县胜道混凝土有限公司 | A kind of prefabricated assembled concrete frame |
| JP2018091056A (en) * | 2016-12-05 | 2018-06-14 | 鹿島建設株式会社 | Prefabrication structure |
| CN111851737A (en) * | 2020-08-04 | 2020-10-30 | 扬州大学 | Assembled concrete frame beam column trunk type connecting joint |
| CN213897809U (en) * | 2020-11-30 | 2021-08-06 | 安徽省瀚景建设发展有限公司 | Steel bar frame convenient for concrete pouring for water conservancy project |
-
2021
- 2021-08-27 CN CN202110994763.2A patent/CN113718948B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105888134A (en) * | 2015-02-16 | 2016-08-24 | 权容觐 | Prefabricated Truss-Embedded Composite Beam |
| JP2018091056A (en) * | 2016-12-05 | 2018-06-14 | 鹿島建設株式会社 | Prefabrication structure |
| CN207348219U (en) * | 2017-09-19 | 2018-05-11 | 曲周县胜道混凝土有限公司 | A kind of prefabricated assembled concrete frame |
| CN111851737A (en) * | 2020-08-04 | 2020-10-30 | 扬州大学 | Assembled concrete frame beam column trunk type connecting joint |
| CN213897809U (en) * | 2020-11-30 | 2021-08-06 | 安徽省瀚景建设发展有限公司 | Steel bar frame convenient for concrete pouring for water conservancy project |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113718948B (en) | 2022-06-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107288218B (en) | Beam column node of assembled reinforced concrete frame structure and manufacturing method thereof | |
| CN104790522B (en) | Prefabricated assembled profile steel concrete column steel girder frame structural system and construction method | |
| CN111997193A (en) | Assembly type prefabricated beam column connecting joint and construction method | |
| CN107605038B (en) | Assembled steel reinforced concrete frame space module structure, system and construction method | |
| CN112112264A (en) | Prefabricated column connecting joint for dry connection and construction method | |
| CN109797862B (en) | Be applied to prestressing force connected node of assembled spinal chord ring stay cable dome structure | |
| CN111335464A (en) | Fabricated concrete structure beam column connecting node and construction method thereof | |
| CN113818467B (en) | Adjustable foundation structure of modular building and construction method thereof | |
| CN112922237A (en) | Take telescopic assembled reinforced concrete post and girder steel connected node | |
| CN113323189A (en) | Assembled heat-preservation energy-saving shear wall based on channel steel connecting piece and implementation method | |
| CN113718948B (en) | Prefabricated concrete structure folding type beam column connecting node and construction method | |
| CN115680116B (en) | Assembled frame beam column connection node and construction method thereof | |
| CN114575451B (en) | Construction method of assembled reinforced concrete frame | |
| CN215563303U (en) | Exempt from to support assembled concrete beam column connection structure | |
| CN215715994U (en) | Assembled beam column node with inhaul cable | |
| CN215907025U (en) | Connecting joint of U-shaped steel-clad concrete beam and steel-reinforced concrete precast column | |
| CN213233789U (en) | Assembled prefabricated beam column connected node | |
| CN113216388A (en) | Support-free assembled concrete beam column connecting structure and assembling method | |
| CN212104524U (en) | Horizontal bending-resistant beam joint structure for bolt connection assembly type reinforced concrete wallboard | |
| CN109235640B (en) | Pin type connecting structure between modularized steel structural members for building | |
| CN2385010Y (en) | External mounted square steel tube concrete beam and column connecting node | |
| CN111749366A (en) | Steel pipe-based fabricated composite wall and construction method thereof | |
| CN112302210A (en) | Assembled built-in corrugated steel plate reinforced concrete cross-section member and construction process | |
| CN107060175B (en) | Inner keel and outer formwork assembly floor structure | |
| CN2389938Y (en) | Ring joint for steel pipe concrete frame |
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 |