CN111997193A - Assembly type prefabricated beam column connecting joint and construction method - Google Patents
Assembly type prefabricated beam column connecting joint and construction method Download PDFInfo
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- CN111997193A CN111997193A CN202010727475.6A CN202010727475A CN111997193A CN 111997193 A CN111997193 A CN 111997193A CN 202010727475 A CN202010727475 A CN 202010727475A CN 111997193 A CN111997193 A CN 111997193A
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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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- 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
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Abstract
The invention relates to an assembly type precast beam column connection node which comprises a precast column and a precast beam, wherein the precast column comprises column inner longitudinal ribs, column inner hoop ribs and column inner embedded parts; the precast beam comprises an inner beam longitudinal rib, an inner beam hoop rib and pre-buried H-shaped steel; during site operation, beam column connecting steel plates are welded on the end faces of embedded parts in the columns of the prefabricated columns, and the prefabricated beams are externally connected with the end faces of the embedded parts in the columns of the prefabricated columns through the end portions of the pre-buried H-shaped steel and are bolted with the beam column connecting steel plates. The invention also provides a construction method of the assembled precast beam-column connection node, which is easy to construct, has superior stress performance at the connection part and stronger rigidity, and solves the technical problem of difficult beam-column node connection in the assembled concrete frame structure.
Description
Technical Field
The invention belongs to the technical field of building structures, relates to an assembly type beam-column joint technology, and particularly relates to an assembly type prefabricated beam-column connecting joint and a construction method.
Background
With the rapid development of economy in China, the living standard of people is continuously improved, and the requirements on houses are increasingly improved. Meanwhile, the cast-in-place construction mode of the house is not suitable for the sustainable development concept of China. At present, China urgently needs to solve the problems of high energy consumption, high pollution, high investment and the like in residential construction, so the urban and rural construction department of China developing and reforming the commission houses issues a green building action scheme, wherein the building systems such as prefabricated concrete structures, steel structures and the like suitable for industrial production are definitely promoted, the prefabrication and assembly technologies of construction projects are accelerated to be developed, and the building industrial technology integration level is improved.
The prefabricated concrete structure has the following advantages:
(1) and (5) green construction. The construction of the fabricated concrete structure can better meet the requirements of land saving, energy saving, material saving, water saving, environmental protection and the like of green construction, reduce the negative effects on the environment, including noise reduction, dust prevention, environmental pollution reduction, clean transportation, site interference reduction, water, electricity, material and other resources and energy, and follow the principle of sustainable development.
(2) The construction period is short. Because a large amount of fabricated concrete members are produced and maintained in a factory, the work carried out on a construction site is only to hoist, assemble and reinforce nodes of the members prefabricated by a prefabrication factory, a scaffold and a support do not need to be installed, the influence of seasonal factors on the construction period is reduced, the work of decoration, hydropower construction and the like is carried out after the main body structure is formed, the workload is far less than that of construction by a cast-in-place method, and the working procedures of masonry and plastering are even omitted, so that the whole construction period is greatly shortened.
(3) The quality of the component is good. The concrete in the prefabrication plant does not need pumping, the water in the concrete is less, and the strength grade of the concrete is higher than that of cast-in-place concrete. After the components are poured in the prefabrication factory, the components are subjected to steam curing, the quality of concrete is guaranteed, the concrete cured on the construction site cannot provide good conditions for steam curing and is influenced by weather, and the curing quality cannot be compared with that of the prefabrication factory.
Currently, more connecting points are mainly located in the beam-column joint area. The node core area has other structural forms such as an assembly type node with a key slot, an assembly type node without a key slot and using U-shaped steel bars or steel strands, an assembly type node with profile steel added inside and the like. The dry connection mode of the fabricated concrete frame node is a node mode that a connecting part is embedded in a member and connected through prestressed tendons, bolts or welding and the like without pouring concrete. The node core area has the structural forms of pre-stress connected fabricated nodes, welded connected fabricated nodes, bolted connected fabricated nodes and the like.
The existing connection form often has dense reinforcing steel bars in a core area, so that the construction quality of the assembled node is influenced due to the fact that concrete in the core area is not compacted through vibration during construction. And the connecting part of the fabricated node is usually positioned at the junction of the beam and the column, and the failure of the node causes the failure of the fabricated reinforced concrete frame structure, which is common in the earthquake. Whether the core area of the node is reasonable in structure or not and whether the force transmission path is simple and effective or not also become important factors influencing the bearing capacity of the prefabricated frame concrete structure.
The following patent documents relevant to the present application are found by search, and specific disclosures are as follows:
1. the utility model provides an assembled node (CN209874054U) for building structure, includes lower connecting piece, square steel-pipe pile and H shaped steel roof beam, the H shaped steel roof beam is connected through lower connecting piece to the square steel-pipe pile, the H shaped steel roof beam mainly comprises two apron and the web of perpendicular connection between the apron that are parallel to each other, the one end that the web is close to lower connecting piece is connected with the picture peg of two sets of perpendicular to web (4), cut the second slot that has two first slots and two vertical settings of horizontal setting on the lower connecting piece, the apron is inserted and is established in first slot, the picture peg is inserted and is established in the second slot. The proposal is that the H-shaped steel is connected with the square steel pipe through the connecting piece, the force transmission path is complex, the integrity is poor,
2. an H-shaped section beam column assembled node (CN209457144U) suitable for unequal-span frames comprises an H-shaped steel column, a long-span H-shaped steel beam and a short-span H-shaped steel beam, wherein the end part of the long-span H-shaped steel beam is fixed on the upper flange of the H-shaped steel column, the upper flange of the short-span H-shaped steel beam is connected with one side of a first angle steel through a first bolt, the other side of the first angle steel is connected with the lower flange of the H-shaped steel column through a second bolt, the web of the short-span H-shaped steel beam is connected with one side of the second angle steel through a third bolt, the other side of the second angle steel is connected with the lower flange of the H-shaped steel column through a fourth bolt, the lower flange of the short-span H-shaped steel beam is connected with one side of a third angle steel through a fifth bolt, and the other side of the third; the first angle steel is provided with a first strip-shaped through hole for a first bolt to pass through; and a second strip-shaped through hole for a fifth bolt to pass through is formed in the lower flange of the short-span H-shaped steel beam. The failure of the joint at the beam-column interface is not improved by the plastic hinge.
3. An assembled beam column connection node (CN110607842A) with steel beams comprises precast concrete columns, cantilever beams, precast concrete beams and rectangular outer steel sleeves, wherein the cantilever beams are symmetrically arranged on two sides of each precast concrete column, a rectangular steel beam which horizontally penetrates through the ends of the two cantilever beams and the precast concrete columns is pre-embedded in the two cantilever beams, the rectangular steel beams respectively penetrate through two ends of the horizontal ends of the two cantilever beams and symmetrically extend outwards, the two precast concrete beams are respectively arranged on two sides of each precast concrete column, a rectangular inner steel sleeve is arranged in each rectangular inner hole, the part of each rectangular steel beam extending outwards is inserted into the corresponding rectangular inner steel sleeve, and the rectangular outer steel sleeves wrap the joints of the cantilever beams and the precast concrete beams, and the rectangular outer steel sleeve is used for locking and connecting the joint of the cantilever beam and the precast concrete beam through a bolt vertically penetrating through the cantilever beam and the precast concrete beam. After concrete in the steel sleeve at the joint section is crushed, the structure suddenly generates large deformation. And are difficult to observe because of the steel sleeve coverage.
Through comparison of technical features, the technical structures of the above-mentioned patent publications and the present invention are different, and the creativity and novelty of the present invention application are not affected.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides an assembly type prefabricated beam-column connecting node and a construction method.
The technical problem to be solved by the invention is realized by adopting the following technical scheme:
an assembled precast beam column connection node comprises a precast column and a precast beam, wherein the precast column comprises an in-column longitudinal rib, an in-column stirrup and an in-column embedded part, the in-column stirrup is positioned on the outer side of the in-column longitudinal rib, the in-column embedded part realizes limiting and fixing through alternate binding of the in-column stirrup and the in-column longitudinal rib, the in-column stirrup and the in-column embedded part form a complete precast column through concrete pouring; the precast beam comprises an inner beam longitudinal rib, an inner beam stirrup and pre-buried H-shaped steel, wherein the inner beam stirrup is positioned on the outer side of the inner beam longitudinal rib, and the end part of the inner beam longitudinal rib is connected with the end part of the pre-buried H-shaped steel in a welding manner; the beam inner longitudinal rib, the beam inner hoop rib and the pre-buried H-shaped steel are poured through concrete to form a complete precast beam, beam column connecting steel plates are perpendicularly welded on the end faces of the embedded parts in the columns of the precast columns at intervals, and the end portions of the pre-buried H-shaped steel of the precast beam are inserted between the beam column connecting steel plates and are externally connected with the end faces of the embedded parts in the columns of the precast columns and are bolted with the beam column connecting steel plates.
And the embedded parts in the columns are I-shaped corrugated steel embedded parts and comprise corrugated steel and column side steel plates, the column side steel plates are symmetrically and fixedly arranged at two ends of the corrugated steel, and the number of the corrugated steel is 1 or 2.
And the embedded parts in the columns are groined type corrugated steel embedded parts and comprise groined type corrugated steel and column side steel plates, the groined type corrugated steel is formed by welding four corrugated steels, and the column side steel plates are welded on each end face of the groined type corrugated steel.
And the embedded parts in the columns are cross corrugated steel embedded parts and comprise cross corrugated steel and column side steel plates, the cross corrugated steel is formed by welding two corrugated steels, and the column side steel plates are welded on each end face of the cross corrugated steel.
And the embedded part in the column also comprises a connecting plate which is horizontally and fixedly arranged between the column side steel plates at the upper and lower positions of the corrugated steel.
And the connecting plates are all provided with limiting through holes for the longitudinal ribs in the columns to pass through.
And moreover, the embedded part in the column further comprises high-strength pull rods which are fixedly connected between the steel plates on the sides of the symmetrical columns at intervals, and the diameters of the high-strength pull rods and the intervals between the adjacent high-strength pull rods are set according to the requirement of connection strength.
And the end part of the corrugated steel extends out of the column end of the prefabricated column by 100-300 mm.
And the length of the embedded H-shaped steel embedded precast beam concrete is 10-15 times of the diameter of the longitudinal bar in the precast beam.
A construction method of an assembly type precast beam column connection node comprises the following steps:
the method comprises the following steps: manufacturing a prefabricated column: selecting an in-column embedded part according to design rules, placing the in-column embedded part on a template of a prefabricated column according to the position of the design rules, then firstly arranging in-column longitudinal ribs, limiting the in-column longitudinal ribs to penetrate through limiting through holes on a connecting plate of the in-column embedded part or intervals between adjacent high-strength pull rods, realizing limiting and fixing of the in-column embedded part, then binding in-column stirrups outside the in-column longitudinal ribs, further limiting and fixing the in-column embedded part on the in-column longitudinal ribs by the in-column stirrups, pouring concrete, and finishing maintenance;
step two, manufacturing a precast beam: placing the pre-buried H-shaped steel at one end of a template of the precast beam according to a design specification position, then arranging the beam inner longitudinal bars and the beam inner stirrups to form a reinforcement cage, then welding, connecting and fixing the beam inner longitudinal bars and the contact parts of the upper surface and the lower surface of the H-shaped steel, binding the beam inner longitudinal bars and the beam inner stirrups, then pouring concrete, and finishing maintenance;
before on-site hoisting, vertically welding two beam-column connecting steel plates on the column side steel plate of the in-column embedded part of the prefabricated column at intervals according to requirements, inserting the end part of the pre-buried H-shaped steel between the beam-column connecting steel plates during installation, vertically welding the end part of the pre-buried H-shaped steel with the end surface of the in-column embedded part of the prefabricated column, and then bolting the in-column connecting steel plates with bolts;
the first step and the second step are not in sequence.
The invention has the advantages and positive effects that:
1. the flange of the embedded H-shaped steel is externally connected with the embedded part in the node core area column, the external connection mode can be realized by edge welding or bolting through arranging a connecting end plate, and the connection mode of the web of the embedded H-shaped steel and the beam column connecting plate in bolted connection is combined, so that the structural connection is reliable, the force transmission path is simple and effective, and the node integrity is improved; the node structure form of the invention is simple, the force transmission mechanism is clear and reasonable, the problem of over-dense steel bars in the core area of the conventional fabricated node is solved, and the stress performance of the fabricated node is effectively improved;
2. the prefabricated components are all completed in a factory, only welding and bolt connection are needed on site, so that the construction process is simplified, the construction speed is accelerated, the beam column is more accurately positioned, the construction is convenient and rapid, and the construction efficiency is improved;
3. the main stress parts of the embedded parts in the core area adopt corrugated steel to replace original steel plates, the bonding property with concrete is good, the node shearing resistance is facilitated, the steel can be more effectively exerted, the rigidity of the embedded parts in the prefabricated column is improved, the deformation is reduced, and the bearing capacity of the whole node is improved; the corrugated steel of the embedded part in the core area further extends out of the column end by 100mm-300mm, so that the beam-column connecting position moves outwards from the node core area, the plastic hinge can be effectively moved outwards, and the corresponding anti-seismic requirement is met.
4. According to the invention, the connecting plates are horizontally and fixedly arranged between the column side steel plates at the upper and lower positions of the corrugated steel of the embedded part in the column or the high-strength pull rods are horizontally arranged at intervals.
Drawings
FIG. 1 is a schematic view of a node structure of a connecting plate according to embodiment 1;
FIG. 2 is a schematic structural view of an embedded part in a column provided with a connecting plate in embodiment 1;
FIG. 3 is a schematic structural view of the corrugated steel end portion extending a certain distance beyond the edge of the prefabricated column;
FIG. 4 is a schematic structural view of an embedded part in a column provided with a high-strength pull rod in embodiment 1;
FIG. 5 is a schematic view of a node structure of a corrugated steel embedded part in a shape like a Chinese character jing of the connecting plate according to embodiment 2;
FIG. 6 is a schematic structural view of a cross-shaped corrugated steel embedded part provided with a connecting plate in embodiment 2;
FIG. 7 is a schematic view of a node structure in which the end of the corrugated steel shaped like Chinese character 'jing' of embodiment 2 extends out of the edge of the prefabricated column by a certain distance;
FIG. 8 is a schematic structural view of a cross-shaped corrugated steel embedded part provided with high-strength pull rods in embodiment 2;
FIG. 9 is a schematic structural view of the embodiment 2, wherein the end of the corrugated steel with the high-strength pull rod is extended out of the edge of the prefabricated column by a certain distance;
FIG. 10 is a schematic structural view of a cross-shaped corrugated steel embedded part provided with a connecting plate in embodiment 2;
FIG. 11 is a schematic structural diagram of a node of the embodiment 2 in which the end of the cross-shaped corrugated steel extends out of the edge of the prefabricated column for a certain distance;
FIG. 12 is a schematic structural diagram of a cross-shaped corrugated steel embedded part provided with high-strength pull rods in embodiment 2.
Detailed Description
The present invention will be described in further detail with reference to the following embodiments, which are illustrative only and not limiting, and the scope of the present invention is not limited thereby.
Example 1:
the utility model provides an assembled precast beam post connected node, includes a precast column 1 and two precast beams 2, through pre-buried H shaped steel 2-1 fixed connection of precast beam one end between precast beam and the precast column. In the embodiment, two side surfaces of the precast column are simultaneously and respectively connected with a precast beam; in this embodiment, the connection nodes of the precast column and all the precast beams have the same structure, and the specific structure of the connection node between the end of the precast beam and the side surface of the precast column is as follows:
the prefabricated column comprises column inner longitudinal bars 1-1, column inner stirrups 1-2 and column inner embedded parts 1-3, the column inner stirrups are located on the outer sides of the column inner longitudinal bars, the column inner embedded parts are fixed in a limiting mode through penetrating and bundling of the column inner stirrups and the column inner longitudinal bars, the column inner embedded parts comprise corrugated steels 1-3-1 and column side steel plates 1-3-2, two column side steel plates are symmetrically and fixedly arranged at two ends of the corrugated steels, in order to further improve the self strength of the prefabricated column and the bearing capacity of an integral node, connecting plates 1-3-3 are horizontally and fixedly arranged between the two column side steel plates at the upper position and the lower position of the corrugated steels or high-strength pull rods 1-3-5 are uniformly distributed and spaced, a complete I-shaped column inner embedded part with prefabricated beams arranged at two sides is formed, limiting through holes 1-3-4 for the column inner longitudinal bars to pass through are formed in the connecting plates, the high-strength pull rods are fixedly connected between the column side steel plates symmetrically arranged at intervals, and the distance between every two adjacent high-strength pull rods and the diameter of each high-strength pull rod are arranged according to the requirement of connection strength.
The number of the corrugated steels in this embodiment may be 1 or 2, the corrugated steels are fixed in the prefabricated column by pouring concrete, the column-side steel plates are located at the sides of the column, when the corrugated steels extend out of the column, the column-side steel plates at two ends of the corrugated steels extend out of the column, and the distance that the corrugated steels extend out of the side faces of the prefabricated column is 100-300 mm, the extension distance in this embodiment is preferably 200 mm, and as the corrugated steels of the embedded part in the core area extend out, the beam-column connection position moves outwards from the node core area, so that the outward movement of the plastic hinge can be effectively realized, and the corresponding anti-seismic requirements are met;
the precast beam comprises an inner beam longitudinal rib 2-2, an inner beam stirrup 2-3 and pre-buried H-shaped steel 2-1, wherein the inner beam stirrup is positioned on the outer side of the inner beam longitudinal rib, the end part of the inner beam longitudinal rib is connected with the end part of the pre-buried H-shaped steel in a welding manner, so that the pre-buried H-shaped steel is fixed at the end part of the precast beam to form an inner beam embedded part, and during specific construction, the length of the pre-buried H-shaped steel embedded in the precast beam concrete is 10-15 times of the diameter of the inner beam longitudinal rib of the precast beam;
furthermore, the corrugated steel of the embedded part in the column is vertical to the plane of the steel plate at the column side, the longitudinal bar in the column is parallel to the plane of the steel plate at the column side, and the H-shaped steel is vertical to the plane of the steel plate at the column side; the beam inner longitudinal bar is perpendicular to the plane of the flange of the embedded H-shaped steel, and the plane of the flange of the embedded H-shaped steel is parallel to the plane of the beam inner stirrup;
in this embodiment, when the precast column and the precast beam are assembled on site, one end of the embedded H-section steel is welded to the column-side steel plate, that is, the upper flange, the web, and the lower flange of one end of the embedded H-section steel are respectively welded to the column-side steel plate, or a connecting plate is arranged at one end of the embedded H-section steel and bolted to the column-side steel plate; the embodiment adopts a welding mode;
further, equal symmetrical welding has beam column connection steel sheet 4 on the post side steel sheet, all be equipped with the bolt hole on the relevant position of beam column connection steel sheet and pre-buried H shaped steel web, when the concatenation, pre-buried H shaped steel web inserts the beam column connection steel sheet interval internal fixation that the symmetry set up, will through bolt 3 beam column connection steel sheet and H shaped steel's web fixed connection.
Further, the beam-column connecting steel plate is perpendicular to the plane of the column-side steel plate.
Furthermore, the joints of the embedded H-shaped steel and the column side steel plates are welded by penetration grooves or fillet welds;
and the joints of the beam-column connecting steel plates and the column side steel plates are welded by penetration grooves or fillet welds.
The invention also provides a construction method of the assembled precast beam-column connection node, which comprises the following steps:
step one, manufacturing a prefabricated column: the method comprises the steps that corrugated steel is fixedly installed between two column side steel plates, a connecting plate or a high-strength pull rod is horizontally and fixedly installed between the column side steel plates at the upper position and the lower position of the corrugated steel to form an I-shaped in-column embedded part, the in-column embedded part is placed on a template of a prefabricated column according to a position specified by design, then, in-column longitudinal ribs are firstly arranged, the in-column longitudinal ribs are limited to penetrate through limiting through holes in the connecting plate of the in-column embedded part or intervals between adjacent high-strength pull rods to realize limiting and fixing of the in-column embedded part, in-column hoop ribs are bound on the outer sides of the in-column longitudinal ribs, the in-column hoop ribs further limit and fix the in-column embedded part on the in-column longitudinal ribs, concrete is poured, and curing;
step two, manufacturing a precast beam: placing the pre-buried H-shaped steel at one end of a template of the precast beam according to a design specification position, then arranging the beam inner longitudinal bars and the beam inner stirrups to form a reinforcement cage, then welding, connecting and fixing the beam inner longitudinal bars and the contact parts of the upper surface and the lower surface of the H-shaped steel, binding the beam inner longitudinal bars and the beam inner stirrups, then pouring concrete, and finishing maintenance;
before on-site hoisting, vertically welding two beam-column connecting steel plates on the column side steel plate of the in-column embedded part of the prefabricated column at intervals according to requirements, inserting the end part of the pre-buried H-shaped steel between the beam-column connecting steel plates during installation, vertically welding the end part of the pre-buried H-shaped steel with the end surface of the in-column embedded part of the prefabricated column, and then bolting the in-column connecting steel plates with bolts;
the first step and the second step are not in sequence.
Example 2:
the utility model provides an assembled precast beam post connected node, includes a precast column and four precast beams, and a precast beam is connected respectively simultaneously to four sides of precast column, the tip of precast beam with the connected node's of the side of precast column concrete structure as follows:
the prefabricated column comprises column internal longitudinal bars, column internal stirrups and column internal embedded parts, wherein the column internal stirrups are positioned on the outer sides of the column internal longitudinal bars, the column internal embedded parts are fixed in a limiting manner by inserting and bundling the column internal stirrups and the column internal longitudinal bars, the column internal embedded parts are groined type column internal embedded parts 1-4 or cross type column internal embedded parts 1-5, each groined type column internal embedded part comprises groined type corrugated steel and four column side steel plates 1-4-2, and the groined type corrugated steel is formed by cutting and cross welding four corrugated steels 1-4-1; in order to further improve the self strength of the prefabricated column and the bearing capacity of an integral node, connecting plates 1-4-3 or high-strength pull rods 1-4-5 are horizontally and fixedly arranged between the four column side steel plates at the upper position and the lower position of the well-shaped corrugated steel to form a complete column embedded part capable of arranging the prefabricated beam on four sides, limiting through holes 1-4-4 for penetrating longitudinal ribs in the column are formed in the connecting plates, the connecting plates are cross-shaped connecting plates, the high-strength pull rods are fixedly connected between the column side steel plates which are symmetrically arranged at intervals, and the distance between the adjacent high-strength pull rods and the diameter of the high-strength pull rods are arranged according to the requirement of the connection strength; the structure of the embedded part in the cross-shaped column is basically the same as that of the embedded part in the # -shaped column, and the only difference is that: the corrugated steel of the embedded part in the cross-shaped column is cross-shaped and is formed by cross welding of two corrugated steel sections;
the well-shaped corrugated steel and the cross-shaped corrugated steel are both fixed in the prefabricated column through concrete pouring, the column side steel plates are positioned at the edges of the column, when the end parts of the corrugated steel extend out of the column, the column side steel plates at two ends of the corrugated steel are positioned outside the column, and the distance that the corrugated steel extends out of the side surface of the prefabricated column is 100-300 mm, the extension distance in the implementation is preferably 200 mm, and due to the fact that the corrugated steel of the embedded part in the core area extends out, the connecting position of the beam column is moved outwards from the core area of the node, the outward movement of the plastic hinge can be effectively achieved, and the corresponding anti-seismic requirements are met;
the precast beam comprises an inner longitudinal beam rib, an inner beam stirrup and pre-buried H-shaped steel, wherein the inner beam stirrup is positioned outside the inner beam longitudinal rib, the end part of the inner beam longitudinal rib is connected with the flange of the pre-buried H-shaped steel in a welding manner, so that the pre-buried H-shaped steel is fixed at the end part of the precast beam to form an inner beam embedded part, and during concrete construction, the length of the pre-buried H-shaped steel embedded in the precast beam is 10-15 times the diameter of the inner beam longitudinal rib of the precast beam;
furthermore, the corrugated steel of the embedded part in the column is vertical to the plane of the steel plate at the column side, the longitudinal bar in the column is parallel to the plane of the steel plate at the column side, and the H-shaped steel is vertical to the plane of the steel plate at the column side;
furthermore, the beam inner longitudinal rib is perpendicular to the plane of the flange of the embedded H-shaped steel, and the plane of the flange of the H-shaped steel is parallel to the plane of the beam inner stirrup;
in this embodiment, when the precast column and the precast beam are assembled on site, one end of the embedded H-section steel is welded to the column-side steel plate, that is, the upper flange, the web, and the lower flange of one end of the embedded H-section steel are respectively welded to the column-side steel plate, or a connecting plate is arranged at one end of the embedded H-section steel and bolted to the column-side steel plate; the present embodiment adopts a welding method.
Further, it has beam column connection steel sheet 4 to go up still equal symmetrical welding on the post side steel sheet, all be equipped with the bolt hole on the relevant position of beam column connection steel sheet and pre-buried H shaped steel web, when the concatenation, pre-buried H shaped steel web inserts the beam column connection steel sheet interval internal fixation that the symmetry set up, will through bolt 3 beam column connection steel sheet and H shaped steel's web fixed connection.
Further, the beam-column connecting steel plate is perpendicular to the plane of the column-side steel plate.
Furthermore, the joints of the embedded H-shaped steel and the column side steel plates are welded by penetration grooves or fillet welds;
and the joints of the beam-column connecting steel plates and the column side steel plates are welded by penetration grooves or fillet welds.
The invention also provides an assembly type precast beam column connecting node, which comprises the following steps:
step one, manufacturing a prefabricated column: four or two corrugated steels are adopted to form well-shaped corrugated steels or cross-shaped corrugated steels through cross welding by cutting, column side steel plates are respectively welded on four end faces of the corrugated steels, and a connecting plate or a high-strength pull rod is horizontally and fixedly arranged between the column side steel plates at the upper and lower positions of the corrugated steels to form an integral in-column embedded part;
step two, manufacturing a precast beam: placing the H-shaped steel on a template of the precast beam according to a design specification position, then arranging a beam inner longitudinal rib and a beam inner hoop rib to form a reinforcement cage, welding and fixing the contact part of the beam inner longitudinal rib and the upper and lower surfaces of the H-shaped steel, binding the beam inner longitudinal rib and the beam inner hoop rib, then pouring concrete, and finishing maintenance;
before on-site hoisting, vertically welding two beam-column connecting steel plates on the column side steel plate of the in-column embedded part of the prefabricated column at intervals according to requirements, inserting the end part of the pre-buried H-shaped steel between the beam-column connecting steel plates during installation, vertically welding the end part of the pre-buried H-shaped steel with the end surface of the in-column embedded part of the prefabricated column, and then bolting the in-column connecting steel plates with bolts;
the first step and the second step are not in sequence.
Although the embodiments of the present invention and the accompanying drawings are disclosed for illustrative purposes, those skilled in the art will appreciate that: various substitutions, changes and modifications are possible without departing from the spirit and scope of the invention and the appended claims, and therefore the scope of the invention is not limited to the disclosure of the embodiments and the accompanying drawings.
Claims (10)
1. The utility model provides an assembled precast beam post connected node, includes precast post and precast beam, its characterized in that: the prefabricated column comprises column inner longitudinal ribs, column inner stirrups and column inner embedded parts, the column inner stirrups are located on the outer sides of the column inner longitudinal ribs, the column inner embedded parts are fixed in a limiting mode through penetrating and bundling of the column inner stirrups and the column inner longitudinal ribs, the column inner stirrups and the column inner embedded parts are cast through concrete to form the complete prefabricated column; the precast beam comprises an inner beam longitudinal rib, an inner beam stirrup and pre-buried H-shaped steel, wherein the inner beam stirrup is positioned on the outer side of the inner beam longitudinal rib, and the end part of the inner beam longitudinal rib is connected with the end part of the pre-buried H-shaped steel in a welding manner; the beam inner longitudinal rib, the beam inner hoop rib and the pre-buried H-shaped steel are poured through concrete to form a complete precast beam, beam column connecting steel plates are perpendicularly welded on the end faces of the embedded parts in the columns of the precast columns at intervals, and the end portions of the pre-buried H-shaped steel of the precast beam are inserted between the beam column connecting steel plates and are externally connected with the end faces of the embedded parts in the columns of the precast columns and are bolted with the beam column connecting steel plates.
2. The fabricated precast beam-column connection node of claim 1, wherein: the embedded parts in the columns are I-shaped corrugated steel embedded parts and comprise corrugated steel and column side steel plates, the column side steel plates are symmetrically and fixedly arranged at two ends of the corrugated steel, and the number of the corrugated steel is 1 or 2.
3. The fabricated precast beam-column connection node of claim 1, wherein: the embedded parts in the columns are # -shaped corrugated steel embedded parts and comprise # -shaped corrugated steel and column side steel plates, the # -shaped corrugated steel is formed by welding four corrugated steels, and the column side steel plates are welded on each end face of the # -shaped corrugated steel.
4. The fabricated precast beam-column connection node of claim 1, wherein: the embedded parts in the columns are cross corrugated steel embedded parts and comprise cross corrugated steel and column side steel plates, the cross corrugated steel is formed by welding two corrugated steels, and the column side steel plates are welded on each end face of the cross corrugated steel.
5. The fabricated precast beam column connection node according to claims 2 to 4, characterized in that: the embedded part in the column further comprises a connecting plate, and the connecting plate is horizontally and fixedly arranged between the column side steel plates at the upper position and the lower position of the corrugated steel.
6. The fabricated precast beam-column connection node of claim 5, wherein: and limiting through holes for the longitudinal ribs in the columns to penetrate are formed in the connecting plates.
7. The fabricated precast beam column connection node according to claims 2 to 4, characterized in that: the embedded part in the column further comprises high-strength pull rods, the high-strength pull rods are fixedly connected between the symmetrical column side steel plates at intervals, and the diameters of the high-strength pull rods and the intervals between the adjacent high-strength pull rods are set according to the requirement of connection strength.
8. The fabricated precast beam column connection node according to claims 2 to 4, characterized in that: the end part of the corrugated steel extends out of the column end of the prefabricated column by 100-300 mm.
9. The fabricated precast beam-column connection node of claim 1, wherein: the length of the embedded H-shaped steel embedded in the precast beam concrete is 10-15 times of the diameter of the longitudinal bar in the beam of the precast beam.
10. A construction method of an assembly type prefabricated beam column connecting joint is characterized by comprising the following steps: the method comprises the following steps:
the method comprises the following steps: manufacturing a prefabricated column: selecting an in-column embedded part according to design rules, placing the in-column embedded part on a template of a prefabricated column according to the position of the design rules, then firstly arranging in-column longitudinal ribs, limiting the in-column longitudinal ribs to penetrate through limiting through holes on a connecting plate of the in-column embedded part or intervals between adjacent high-strength pull rods, realizing limiting and fixing of the in-column embedded part, then binding in-column stirrups outside the in-column longitudinal ribs, further limiting and fixing the in-column embedded part on the in-column longitudinal ribs by the in-column stirrups, pouring concrete, and finishing maintenance;
step two, manufacturing a precast beam: placing the pre-buried H-shaped steel at one end of a template of the precast beam according to a design specification position, then arranging the beam inner longitudinal bars and the beam inner stirrups to form a reinforcement cage, then welding, connecting and fixing the beam inner longitudinal bars and the contact parts of the upper surface and the lower surface of the H-shaped steel, binding the beam inner longitudinal bars and the beam inner stirrups, then pouring concrete, and finishing maintenance;
before on-site hoisting, vertically welding two beam-column connecting steel plates on the column side steel plate of the in-column embedded part of the prefabricated column at intervals according to requirements, inserting the end part of the pre-buried H-shaped steel between the beam-column connecting steel plates during installation, vertically welding the end part of the pre-buried H-shaped steel with the end surface of the in-column embedded part of the prefabricated column, and then bolting the in-column connecting steel plates with bolts;
the first step and the second step are not in sequence.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010727475.6A CN111997193A (en) | 2020-07-27 | 2020-07-27 | Assembly type prefabricated beam column connecting joint and construction method |
| AU2020101918A AU2020101918A4 (en) | 2020-07-27 | 2020-08-20 | Fabricated beam-to-column joint and construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010727475.6A CN111997193A (en) | 2020-07-27 | 2020-07-27 | Assembly type prefabricated beam column connecting joint and construction method |
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| CN111997193A true CN111997193A (en) | 2020-11-27 |
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| CN202010727475.6A Pending CN111997193A (en) | 2020-07-27 | 2020-07-27 | Assembly type prefabricated beam column connecting joint and construction method |
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| CN (1) | CN111997193A (en) |
| AU (1) | AU2020101918A4 (en) |
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Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001173092A (en) * | 1999-12-21 | 2001-06-26 | Shimizu Corp | Structure of column |
| CN1715586A (en) * | 2004-06-14 | 2006-01-04 | 东洋综合建业株式会社 | Prestress mixed beam with concrete plate and corrugate steel web beam |
| CN101215912A (en) * | 2008-01-10 | 2008-07-09 | 同济大学 | Double corrugated web plate steel box girder |
| CN102587495A (en) * | 2012-02-09 | 2012-07-18 | 北京建筑工程学院 | Steel beam and concrete wall semi-rigid full-bolted-connection joint |
| CN104818775A (en) * | 2015-04-29 | 2015-08-05 | 浙江工业职业技术学院 | Novel prefabricated frame structure |
| CN105649202A (en) * | 2016-01-11 | 2016-06-08 | 安徽理工大学 | Prestress fabricated frame joint structure and construction method thereof |
| CN106049691A (en) * | 2016-07-20 | 2016-10-26 | 福建工程学院 | Fully-prefabricated assembling type steel tube constraint frame node |
| CN207032474U (en) * | 2017-07-11 | 2018-02-23 | 上海应用技术大学 | A kind of assembly concrete frame structure beam column rigid connection node |
| CN108396860A (en) * | 2018-03-09 | 2018-08-14 | 河北工业大学 | A kind of frame beam column and its connecting joint structure for precast reinforced concrete structure |
| CN109457816A (en) * | 2018-11-19 | 2019-03-12 | 南京长江都市建筑设计股份有限公司 | A kind of connecting node and construction method of steel beam with box shape and reinforced concrete interface |
-
2020
- 2020-07-27 CN CN202010727475.6A patent/CN111997193A/en active Pending
- 2020-08-20 AU AU2020101918A patent/AU2020101918A4/en not_active Ceased
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001173092A (en) * | 1999-12-21 | 2001-06-26 | Shimizu Corp | Structure of column |
| CN1715586A (en) * | 2004-06-14 | 2006-01-04 | 东洋综合建业株式会社 | Prestress mixed beam with concrete plate and corrugate steel web beam |
| CN101215912A (en) * | 2008-01-10 | 2008-07-09 | 同济大学 | Double corrugated web plate steel box girder |
| CN102587495A (en) * | 2012-02-09 | 2012-07-18 | 北京建筑工程学院 | Steel beam and concrete wall semi-rigid full-bolted-connection joint |
| CN104818775A (en) * | 2015-04-29 | 2015-08-05 | 浙江工业职业技术学院 | Novel prefabricated frame structure |
| CN105649202A (en) * | 2016-01-11 | 2016-06-08 | 安徽理工大学 | Prestress fabricated frame joint structure and construction method thereof |
| CN106049691A (en) * | 2016-07-20 | 2016-10-26 | 福建工程学院 | Fully-prefabricated assembling type steel tube constraint frame node |
| CN207032474U (en) * | 2017-07-11 | 2018-02-23 | 上海应用技术大学 | A kind of assembly concrete frame structure beam column rigid connection node |
| CN108396860A (en) * | 2018-03-09 | 2018-08-14 | 河北工业大学 | A kind of frame beam column and its connecting joint structure for precast reinforced concrete structure |
| CN109457816A (en) * | 2018-11-19 | 2019-03-12 | 南京长江都市建筑设计股份有限公司 | A kind of connecting node and construction method of steel beam with box shape and reinforced concrete interface |
Non-Patent Citations (1)
| Title |
|---|
| 马劲红等: "《波纹轨腰钢轨开发与研究》", 31 August 2014, 冶金工业出版社 * |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112647590A (en) * | 2020-12-01 | 2021-04-13 | 河北建工集团有限责任公司 | Construction method for prefabricated assembled reinforced concrete beam column steel node prefabricated combination column |
| CN112647591A (en) * | 2020-12-01 | 2021-04-13 | 河北建工集团有限责任公司 | Prefabricated reinforced concrete beam column steel node |
| CN113389271A (en) * | 2021-07-15 | 2021-09-14 | 辽宁工程技术大学 | Novel assembled concrete beam column node |
| CN113863494A (en) * | 2021-09-30 | 2021-12-31 | 广东普发建筑有限公司 | Assembly type concrete beam column connecting node and mounting method thereof |
| CN114033033A (en) * | 2021-11-13 | 2022-02-11 | 华北水利水电大学 | Reinforced concrete beam column-profile steel node combined structure and construction method thereof |
| CN114033033B (en) * | 2021-11-13 | 2024-03-29 | 华北水利水电大学 | Reinforced concrete beam column-section steel node combined structure and construction method thereof |
| CN114737674A (en) * | 2022-04-08 | 2022-07-12 | 无锡天盈建筑科技有限公司 | Construction method for building beam-column dry connection |
| CN115710855A (en) * | 2022-11-21 | 2023-02-24 | 南京理工大学 | Bridge prestress crossed continuous beam combined steel concrete structure |
| CN115710855B (en) * | 2022-11-21 | 2023-06-27 | 南京理工大学 | Bridge prestress crossed continuous beam combined steel concrete structure |
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