CN113389380B - Elevation-adjustable node strengthening method based on multi-limb hoop - Google Patents
Elevation-adjustable node strengthening method based on multi-limb hoop Download PDFInfo
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- CN113389380B CN113389380B CN202110839247.2A CN202110839247A CN113389380B CN 113389380 B CN113389380 B CN 113389380B CN 202110839247 A CN202110839247 A CN 202110839247A CN 113389380 B CN113389380 B CN 113389380B
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/20—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of concrete, e.g. reinforced concrete, or other stonelike material
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/20—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of concrete, e.g. reinforced concrete, or other stonelike material
- E04B1/21—Connections specially adapted therefor
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Abstract
The invention discloses a multi-limb hoop based elevation-adjustable node strengthening method, which comprises the following steps of: 1) Constructing a semi-finished frame structure; 2) Prefabricating a connecting steel bar matched with the constructed semi-finished frame structure based on the constructed semi-finished frame structure; 3) Welding a steel bar framework on the semi-finished frame structure based on the embedded connecting steel bars; 4) Coating a plurality of labels at equal intervals on the steel bar framework; 5) Bending and binding a plurality of stirrups on each connecting reinforcement to form a reinforcement cage shape to form a multi-limb hoop; 6) C-shaped buckling pieces are clamped into the side faces of the multiple limb hoops which are arranged in a stacked mode for bundling; 7) Matching with the C-shaped fastener, inserting longitudinal steel bars among the multi-limb hoops to form a finished product frame structure; the elevation-adjustable node reinforcing structure based on the multi-limb hoop can be quickly and accurately constructed, meets the standardized process, implements advanced concepts such as green environmental protection and resource saving, and contributes to improving the construction quality and the installation efficiency.
Description
Technical Field
The invention relates to a multi-limb hoop-based elevation-adjustable node strengthening method.
Background
The assembled integral frame structure is prefabricated by adopting vertical bearing components, the joint areas of the prefabricated vertical bearing components and the cast-in-situ horizontal bearing components are provided with stirrups according to the stirrup encryption areas of the vertical bearing components, longitudinal steel bars penetrating through the cast-in-situ horizontal bearing components are inserted, and finally, concrete higher than the prefabricated vertical bearing components by one grade is poured and compacted to form a whole structure. However, the construction method has many disadvantages, and the specific analysis is as follows:
1) The vertical bearing components are prefabricated, the transverse bearing components are cast in situ, longitudinal steel bars of prefabricated beam-column nodes are dense, and the installation precision of the stirrups in the dense areas cannot be guaranteed, so that the strength and the quality of the beam-column nodes are seriously influenced;
2) The stirrup frame body formed by welding the peripheral stirrups extrudes an insertion space for inserting the longitudinal steel bars of the cast-in-place reinforced concrete beam into the beam column nodes, so that the space between double rows or multiple rows of steel bars is difficult to ensure;
3) After the longitudinal steel bars need to penetrate through the cast-in-place reinforced concrete beam, the two middle double-limb hoops are manually fixed on the stirrup frame body, if the longitudinal steel bars are too dense, the situation that the longitudinal steel bars and the rear double-limb hoops are erected easily occurs, and the construction quality of the hoops in the encryption area is difficult to guarantee while the consumed time is long.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide the elevation-adjustable node reinforcing structure based on the multi-limb hoop, which can be used for quickly and accurately constructing, meets the requirements of standardized processes, implements advanced concepts of environmental protection, resource saving and the like, and is used for improving the construction quality and the installation efficiency.
The technical scheme adopted by the invention for solving the technical problems is as follows:
a multi-limb hoop based adjustable elevation node strengthening method comprises the following steps:
1) Constructing a semi-finished frame structure;
2) Prefabricating a connecting steel bar matched with the constructed semi-finished product frame structure based on the constructed semi-finished product frame structure, and embedding the connecting steel bar into the semi-finished product frame structure;
3) Welding a steel bar framework on the semi-finished frame structure based on the embedded connecting steel bars;
4) Coating a plurality of labels at equal intervals on the steel bar framework;
5) Combining and binding three large, two small closed stirrups on each connecting steel bar to form a multi-limb hoop, and enabling each multi-limb hoop to be arranged on the connecting steel bar in a laminated manner;
6) C-shaped buckling pieces are clamped into the side faces of the multiple limb hoops which are arranged in a stacked mode for bundling;
7) And (3) inserting longitudinal steel bars between the multi-limb hoops by matching with the C-shaped buckle piece to form a finished product frame structure.
Preferably, in step 1), the method for constructing the semi-finished frame structure includes: the size of the prefabricated reinforced concrete column, the number and the size of the longitudinal steel bars and the beam height of the cast-in-place reinforced concrete beam are used for producing the corresponding semi-finished frame structure based on the parameters.
Preferably, in the step 2), more than one connecting steel bar is arranged, the connecting steel bars are distributed on the semi-finished frame structure in a rectangular shape, and at least three connecting steel bars are arranged at each rectangular corner.
Further, in step 3), the number of the steel bar frameworks is more than one, and the steel bar frameworks are matched with the positions of the connecting steel bars, and at least one steel bar framework is matched with the position of the connecting steel bar at each rectangular corner.
Preferably, in step 4), the number of labels is N, the number of longitudinal rebars is N, and N = N-1.
Further, in the step 4), the labeling interval length is matched with the diameter length of the longitudinal steel bar.
Preferably, in step 5), the multi-limb hoop comprises a highest layer, a lowest layer and an intermediate layer, wherein the highest layer is fixed at the top of the connecting steel bars, the lowest layer is fixed at the bottom of the connecting steel bars, and the intermediate layer is matched with the labeling position.
Further, in the step 6), two groups of C-shaped buckling pieces are provided, which are respectively disposed on two sides of the multi-limb hoop and used for bundling the multi-limb hoops of each layer.
Further, in step 6), the C-shaped fastener is a retractable holding member.
Preferably, in step 7), when the longitudinal steel bar is not inserted, the multi-limb hoop in the middle layer is tied to the multi-limb hoop at the highest layer through the C-shaped fastener, and when the longitudinal steel bar is inserted, the multi-limb hoop in the middle layer is pulled out through the C-shaped fastener and is overlapped in a staggered and overlapped manner by matching with the longitudinal steel bar.
The conventional peripheral stirrup frame body and the multi-limb hoops are inspired by research, the elevation-adjustable node reinforcing structure based on the multi-limb hoops has the characteristics of factory production, convenience in installation, clear partitions, no need of post-installation of stirrups and the like, the requirements of on-site actual construction conditions and design drawings on prefabricated beam column nodes are fully considered, the conventional peripheral stirrup frame body and the multi-limb hoops are properly technically combined, and the engineering construction technology research of the elevation-adjustable node reinforcing structure based on the multi-limb hoops, which is suitable for the engineering construction application, is determined.
Aiming at improving the quality of the prefabricated beam column joint, according to the requirements of projects on the quality of concrete engineering and the schedule construction period, the construction technology adopts a construction technology of the joint reinforcing structure based on multi-limb hoops and capable of adjusting the elevation, and the technology mainly comprises three parts, namely a multi-limb hoop, a smooth round steel bar forming a stirrup frame body and a clamping piece. The utility model provides a construction quality that node additional strengthening of adjustable elevation based on many limbs hoop is favorable to improving the longitudinal reinforcement of cast-in-place reinforced concrete roof beam and the district's of encrypting stirrup among the precast beam column node, guarantees rigidity stability and anti-seismic performance, and we adopt unnecessary plain steel muscle tails to recycle in the on-the-spot steel bar processing canopy simultaneously, carries out measures such as green construction, environmental protection of implementation completely.
The invention has the beneficial effects that:
1) Preparing enough multi-limb hoops in advance according to the arrangement requirement of beam column node encryption zone intervals, forming a stirrup frame body by four hot-rolled plain circular steel bars in the corner zones of the inner rings of the top and bottom multi-limb hoops, and completely hanging the middle multi-limb hoop below the top multi-limb hoop through an openable buckle. The method comprises the steps that longitudinal steel bars of a cast-in-place reinforced concrete beam penetrate through a stirrup frame from bottom to top, after the longitudinal steel bars of the cast-in-place reinforced concrete beam with a dense area height are arranged, a buckle at the top of a node reinforcing structure with adjustable height based on a multi-limb hoop is opened, the multi-limb hoop is placed to a mark position of the dense area and fixed on the stirrup frame until all the longitudinal steel bars penetrate through beam column nodes, and after a template support and a template are completely erected and checked to be correct, concrete with a strength level higher than that of precast column body concrete is poured at the beam column nodes; 2) The construction method has the characteristics of convenience, easiness in obtaining, simplicity in construction, reliability in stress, reasonable structure and the like, solves the problem that the construction pain points of the double-limb hoops in the column are difficult to apply due to the fact that reinforcing steel bars in beam column joint areas of the prefabricated column and the cast-in-place beam are dense, effectively ensures the construction quality of the prefabricated beam column joints, and improves the construction efficiency on site; 3) The multi-limb hoop is integrally formed, has good quality, small error and convenient processing, is suitable for beam column nodes with higher requirements on structural strength, has high precision of factory production of prefabricated parts, can enter a construction site along with the prefabricated parts, does not need to lay two double support hoops of an inner ring at the intensive beam column nodes manually, and obviously improves the construction quality; 4) After the multi-limb hoops are transported to a construction site, the stirrup frame body can be welded by the plain circular reinforcement excess material of the on-site reinforcement processing shed, and the positions of the stirrup encryption areas are marked by white marking pens or white paint, so that the installation is convenient, the materials are saved, meanwhile, the welding can be carried out at the reinforcement processing shed on the ground, the multi-limb hoops can be transported to the floor construction site in batches by a vertical transportation device, and the construction efficiency is improved; 5) The buckle arranged at the top of the stirrup frame body has low cost, is convenient and easy to obtain, is convenient to install and disassemble, can effectively ensure that all the middle multi-limb hoops are temporarily placed at the top, can ensure the convenience of taking and using the multi-limb hoops, and also vacates a construction space for prefabricating Liang Zhujie point-penetrating transverse longitudinal bars, thereby facilitating the construction of teams and groups;
6) In the process that longitudinal steel bars of a cast-in-place reinforced concrete beam penetrate through a prefabricated beam column node from bottom to top, after the longitudinal steel bars of the cast-in-place reinforced concrete beam from four directions and at the same height of a dense area are arranged, a buckle at the top of a stirrup frame body is opened, a multi-limb hoop is placed to the mark position of the dense area and fixed on the stirrup frame body until all the longitudinal steel bars penetrate through the beam column node, the effect of partitioning the cast-in-place reinforced concrete beam longitudinal steel bars is achieved, meanwhile, if one dense area penetrates through double rows of steel bars with larger diameters, the longitudinal steel bars at the upper layer can be bound on the multi-limb hoop through steel wire ropes, the space between the double rows of steel bars is guaranteed, and the cohesive force effect of the steel bars and concrete is improved; 7) According to the assembly type building construction principle of green construction, environmental protection and energy saving, a multi-limb hoop-based elevation-adjustable node reinforcing structure adopts a multi-limb hoop manufactured by a factory, and meanwhile, tailings of a field steel bar processing shed are recycled and reused.
Drawings
FIG. 1 is a top view of a node reinforcement structure;
FIG. 2 is a schematic view of a multi-limb hoop locking state of the node reinforcing structure;
fig. 3 is a schematic view of the multi-limb hoop unfolding state of the node reinforcing structure.
Detailed Description
The present invention is further described with reference to the following drawings and specific examples so that those skilled in the art can better understand the present invention and can practice the present invention, but the examples are not intended to limit the present invention.
Example 1
Referring to fig. 1-3, a node additional strengthening of adjustable elevation based on many limbs hoop, including reinforced concrete column 1, and one end buries in reinforced concrete column 1, the other end extends to reinforced concrete column 1 outer connecting reinforcement 2, and set up on reinforced concrete column 1, the steel reinforcement skeleton 3 that sets up adjacent to connecting reinforcement 2, and twine many limbs hoop 4 on connecting reinforcement 2, steel reinforcement skeleton 3 on be equipped with a plurality of subsides marks 5 that are the equidistance interval and set up, many limbs hoop 4 is equipped with more than one, and pastes 5 corresponding being equidistance interval distribution on connecting reinforcement 2 and steel reinforcement skeleton 3 with each, each insert longitudinal reinforcement 6 between many limbs hoop 4, in this embodiment, each the equidistance of subsides mark 5 the interval of fixing to be according to beam column node hoop district hoop muscle interval.
It shows to refer to fig. 1, connecting reinforcement 2 be equipped with more than one, and be the rectangle form and distribute on reinforced concrete column, the rectangle column structure that connecting reinforcement 2 formed in, each rectangle corner point has three piece at least connecting reinforcement 2, and the connecting reinforcement 2 of each rectangle corner point is the right triangle shape and distributes, in this embodiment, adopted twelve connecting reinforcement 2, each corner point sets up three connecting reinforcement 2 and carries out the right triangle shape and distributes, is convenient for cooperate many limbs hoop 4 to twine.
Referring to fig. 1-2, the multi-limb hoops 4 are combined and bound on the connecting steel bars 2 by three closed hoops with two large closed hoops and two small closed hoops to form a steel bar cage shape, the steel bar cages formed by the multi-limb hoops 4 are arranged on the connecting steel bars 2 in a laminated shape, more than one steel bar framework 3 is arranged and distributed on the reinforced concrete column in a rectangular shape, and after the multi-limb hoops 4 are bent and bound, the multi-limb hoops are designed at intervals of one layer by one layer according to the labeling 5, so that the multi-limb hoops are matched with the insertion of the longitudinal steel bars 6.
Referring to fig. 2-3, the multi-limb hoops 4 are provided with C-shaped fasteners 7, the C-shaped fasteners 7 are arranged at more than one, and are clamped on the multi-limb hoops 4 from the side to form clamping matching, the multi-limb hoops 4 positioned at the top and the bottom are fixed with the framework steel bars 3 in a welding matching mode, the spacing distance between the multi-limb hoops 4 is consistent with the spacing distance between the labels 5, the C-shaped fasteners 7 are mainly used for binding the multi-limb hoops 4, the C-shaped fasteners 7 are designed to be detachable, the multi-limb hoops 4 are clamped when bound, and the corresponding multi-limb hoops 4 are detached when longitudinal steel bars 6 are inserted between the multi-limb hoops 4.
Referring to fig. 1, a shear key 8 and an embedded lifting point 9 are arranged in the exposure direction of a connecting steel bar 2 of a reinforced concrete column 1, the shear key 8 is located in a rectangular structure formed by the connecting steel bar 2, and the embedded lifting point 9 is located in the shear key 8.
Example 2
Referring to fig. 1-3, a method for adjustable elevation node reinforcement based on multi-limb hoops includes the following steps:
1) Constructing a semi-finished frame structure;
2) Prefabricating a connecting steel bar matched with the constructed semi-finished product frame structure based on the constructed semi-finished product frame structure, and embedding the connecting steel bar into the semi-finished product frame structure;
3) Welding a steel reinforcement framework 3 on the semi-finished frame structure based on the embedded connecting steel bars 2;
4) Coating a plurality of labels 5 at equal intervals on the steel bar framework 3;
5) Combining and binding three large, two small closed stirrups on each connecting steel bar to form a multi-limb hoop 4, and enabling each multi-limb hoop 4 to be arranged on the connecting steel bar in a laminated manner;
6) C-shaped buckling pieces 7 are clamped into the side surfaces of the multiple limb hoops 4 which are arranged in a stacked mode for bundling;
7) And (3) matching with the C-shaped fastener 7, and inserting longitudinal steel bars 6 between the multi-limb hoops 4 to form a finished frame structure.
In step 1), the construction method of the semi-finished frame structure comprises the following steps: the size of the prefabricated reinforced concrete column, the number and the size of the longitudinal steel bars 6 and the beam height of the cast-in-place reinforced concrete beam are determined, and the corresponding semi-finished frame structure is produced based on the parameters.
In step 2), the number of the connecting steel bars 2 is more than one, the connecting steel bars are distributed in a rectangular shape on the semi-finished frame structure, and at least three connecting steel bars 2 are arranged at each rectangular corner.
In step 3), the steel reinforcement framework 3 is provided with more than one, and is matched with the position of the connecting steel reinforcement 2, and at least one steel reinforcement framework 3 is matched with the position of the connecting steel reinforcement 2 at each rectangular corner.
In the step 4), the number of the labels 5 is N, the number of the longitudinal steel bars 6 is N, and N = N-1.
In the step 4), the interval length of the labels 5 is matched with the diameter length of the longitudinal steel bars 6.
In the step 5), the multi-limb hoop 4 comprises a highest layer, a lowest layer and an intermediate layer, wherein the highest layer is fixed at the top of the connecting steel bar 2, the lowest layer is fixed at the bottom of the connecting steel bar 2, and the intermediate layer is matched with the position of the label 5.
In the step 6), two groups of the C-shaped fasteners 7 are respectively arranged on two sides of the multi-limb hoop 4, and the multi-limb hoops 4 on each layer are bound.
In step 6), the C-shaped fastener 7 is a retractable holding member.
In step 7), when the longitudinal steel bar 6 is not inserted, the multi-limb hoop 4 in the middle layer is constrained at the multi-limb hoop 4 at the highest layer through the C-shaped fastener 7, and when the longitudinal steel bar 6 is inserted, the multi-limb hoop 4 in the middle layer is pulled out through the C-shaped fastener 7 and is matched with the longitudinal steel bar 6 for staggered overlapping.
The invention has the beneficial effects that:
1) Preparing enough multi-limb hoops in advance according to the arrangement requirement of beam column node encryption zone intervals, forming a stirrup frame body by four hot-rolled plain circular steel bars in the corner zones of the inner rings of the top and bottom multi-limb hoops, and completely hanging the middle multi-limb hoop below the top multi-limb hoop through an openable buckle. The method comprises the steps that longitudinal steel bars of a cast-in-place reinforced concrete beam penetrate through a stirrup frame from bottom to top, after the longitudinal steel bars of the cast-in-place reinforced concrete beam with a dense area height are arranged, a buckle at the top of a node reinforcing structure with adjustable height based on a multi-limb hoop is opened, the multi-limb hoop is placed to a mark position of the dense area and fixed on the stirrup frame until all the longitudinal steel bars penetrate through beam column nodes, and after a template support and a template are completely erected and checked to be correct, concrete with a strength level higher than that of precast column body concrete is poured at the beam column nodes; 2) The construction method has the characteristics of convenience, easiness in obtaining, simplicity in construction, reliability in stress, reasonable structure and the like, solves the problem that the construction pain points of the double-limb hoops in the column are difficult to apply due to the fact that reinforcing steel bars in beam column joint areas of the prefabricated column and the cast-in-place beam are dense, effectively ensures the construction quality of the prefabricated beam column joints, and improves the construction efficiency on site; 3) The multi-limb hoop is integrally formed, has good quality, small error and convenient processing, is suitable for beam column nodes with higher requirements on structural strength, has high precision of factory production of prefabricated parts, can enter a construction site along with the prefabricated parts, does not need to lay two double support hoops of an inner ring at the intensive beam column nodes manually, and obviously improves the construction quality; 4) After the multi-limb hoops are transported to a construction site, the stirrup frame body can be welded by the plain circular reinforcement excess material of the on-site reinforcement processing shed, and the positions of the stirrup encryption areas are marked by white marking pens or white paint, so that the installation is convenient, the materials are saved, meanwhile, the welding can be carried out at the reinforcement processing shed on the ground, the multi-limb hoops can be transported to the floor construction site in batches by a vertical transportation device, and the construction efficiency is improved; 5) The buckle arranged at the top of the stirrup frame body has low cost, is convenient and easy to obtain, is convenient to install and disassemble, can effectively ensure that all the middle multi-limb hoops are temporarily placed at the top, can ensure the convenience of taking and using the multi-limb hoops, and also vacates a construction space for prefabricating Liang Zhujie point-penetrating transverse longitudinal bars, thereby facilitating the construction of teams and groups; 6) In the process that longitudinal steel bars of a cast-in-place reinforced concrete beam penetrate through a prefabricated beam column node from bottom to top, after the longitudinal steel bars of the cast-in-place reinforced concrete beam from four directions and at the same height of a dense area are arranged, a buckle at the top of a stirrup frame body is opened, a multi-limb hoop is placed to the mark position of the dense area and fixed on the stirrup frame body until all the longitudinal steel bars penetrate through the beam column node, the effect of partitioning the cast-in-place reinforced concrete beam longitudinal steel bars is achieved, meanwhile, if one dense area penetrates through double rows of steel bars with larger diameters, the longitudinal steel bars at the upper layer can be bound on the multi-limb hoop through steel wire ropes, the space between the double rows of steel bars is guaranteed, and the cohesive force effect of the steel bars and concrete is improved; 7) According to the assembly type building construction principle of green construction, environmental protection and energy saving, a multi-limb hoop-based elevation-adjustable node reinforcing structure adopts a multi-limb hoop manufactured by a factory, and meanwhile, tailings of a field steel bar processing shed are recycled and reused.
The above-described embodiments of the present invention are not intended to limit the scope of the present invention, and the embodiments of the present invention are not limited thereto, and various other modifications, substitutions and alterations can be made to the above-described structure of the present invention without departing from the basic technical concept of the present invention as described above, according to the common technical knowledge and conventional means in the field of the present invention.
Claims (6)
1. A multi-limb hoop based elevation-adjustable node strengthening method is characterized by comprising the following steps:
1) Constructing a semi-finished frame structure;
2) Prefabricating connecting steel bars matched with the constructed semi-finished frame structure, and embedding the connecting steel bars into the semi-finished frame structure;
3) Welding a steel bar framework on the semi-finished frame structure based on the embedded connecting steel bars;
4) Coating a plurality of labels at equal intervals on the steel bar framework;
5) Combining and binding three large, two small closed stirrups on each connecting steel bar to form a multi-limb hoop, and enabling each multi-limb hoop to be arranged on the connecting steel bar in a laminated manner;
6) C-shaped buckling pieces are clamped into the side faces of the multiple limb hoops which are arranged in a stacked mode for bundling;
7) Matching with the C-shaped fastener, inserting longitudinal steel bars among the multi-limb hoops to form a finished product frame structure;
in the step 5), the multi-limb hoop comprises a highest layer, a lowest layer and an intermediate layer, wherein the highest layer is fixed at the top of the connecting steel bars, the lowest layer is fixed at the bottom of the connecting steel bars, and the intermediate layer is matched with the labeling position;
in the step 6), two groups of C-shaped buckling pieces are arranged and are respectively arranged at two sides of the multi-limb hoop, and the multi-limb hoops at each layer are bound;
in the step 6), the C-shaped fastener is a clamping component with elasticity;
in step 7), when the longitudinal steel bar is not inserted, the multi-limb hoop in the middle layer is restrained at the multi-limb hoop at the highest layer through the C-shaped buckling piece, and when the longitudinal steel bar is inserted, the multi-limb hoop in the middle layer is separated from the C-shaped buckling piece and is matched with the longitudinal steel bar to carry out staggered overlapping;
this finished product frame construction is including reinforced concrete column, and one end buries in reinforced concrete column, the other end extends to the outer connecting reinforcement of reinforced concrete column, and set up on reinforced concrete column, the adjacent steel reinforcement skeleton that sets up in connecting reinforcement, and twine the many limbs hoop on connecting reinforcement, steel reinforcement skeleton on be equipped with a plurality of subsides that are the equidistance interval and set up, many limbs hoop is equipped with more than one, and is equidistance interval distribution, each with each subsides mark corresponding on connecting reinforcement and steel reinforcement skeleton, each insert longitudinal reinforcement between the many limbs hoop, connecting reinforcement be equipped with more than one, and be rectangle form distribution on reinforced concrete column, the rectangle form structure that connecting reinforcement formed in, each rectangle corner point has three at least connecting reinforcement, and the connecting reinforcement of each rectangle limit is the triangle shape distribution of angle point, many limbs hoop form steel reinforcement cage on connecting reinforcement by the combination of three little three closed reinforcement of one big or small, each many limbs hoop form steel reinforcement cage on the connecting reinforcement cage that is the buckle form on connecting reinforcement is connected, the steel reinforcement skeleton be equipped with the card and be equipped with the many limbs and fix the interval and block the cooperation of C between the many limbs, the many limbs and the C form the cooperation of the many limbs, the fixed limb, the side of the many limbs hoop and the cooperation of the many limbs hoop.
2. The multi-limb hoop based adjustable elevation node reinforcement method according to claim 1, wherein in step 1), the semi-finished frame structure is constructed by the following method: and (3) producing a corresponding semi-finished frame structure based on the size of the prefabricated reinforced concrete column, the number and the size of the longitudinal steel bars and the beam height of the cast-in-place reinforced concrete beam.
3. A multi-limb hoop based elevation-adjustable joint reinforcing method as claimed in claim 1, wherein in step 2), more than one connecting steel bar is arranged, and the connecting steel bars are distributed on the semi-finished frame structure in a rectangular shape, and at least three connecting steel bars are arranged at each corner of the rectangle.
4. The multi-limb hoop based elevation-adjustable joint reinforcing method as claimed in claim 3, wherein in the step 3), more than one steel bar skeleton is provided and matched with the positions of the connecting steel bars, and at least one steel bar skeleton is matched with the position of the connecting steel bar at each rectangular corner.
5. The multi-limb hoop based adjustable elevation node reinforcement method as claimed in claim 1, wherein in step 4), the number of labels is N, the number of longitudinal steel bars is N, and N = N-1.
6. The multi-limb hoop based adjustable elevation node reinforcement method according to claim 5, wherein in the step 4), the labeling interval length is matched with the diameter length of the longitudinal steel bar.
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| EP0297006B1 (en) * | 1987-06-26 | 1992-05-13 | SHIMIZU CONSTRUCTION Co. LTD. | Meshwork reinforced and pre-stressed concrete member, method and apparatus for making same |
| CN106545086B (en) * | 2016-10-17 | 2019-03-05 | 华南理工大学 | A kind of steel bar regeneration monolith beam-column joint and its construction method |
| CN209585119U (en) * | 2018-11-02 | 2019-11-05 | 上海建工二建集团有限公司 | Inverse method one-column one-pile Column border node hooping structure |
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