CN114150762A - RCS assembly of assembled concrete column and steel beam and construction method thereof - Google Patents
RCS assembly of assembled concrete column and steel beam and construction method thereof Download PDFInfo
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- CN114150762A CN114150762A CN202111526073.0A CN202111526073A CN114150762A CN 114150762 A CN114150762 A CN 114150762A CN 202111526073 A CN202111526073 A CN 202111526073A CN 114150762 A CN114150762 A CN 114150762A
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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
- E04B1/185—Connections not covered by E04B1/21 and E04B1/2403, e.g. connections between structural parts of different 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
- E04B1/38—Connections for building structures in general
- E04B1/58—Connections for building structures in general of bar-shaped building elements
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- 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
- E04G21/14—Conveying or assembling building elements
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Abstract
The invention provides an RCS (reinforced concrete) assembly of an assembled concrete column and a steel beam and a construction method thereof, belonging to the technical field of building structures. The concrete column comprises an upper column and a lower column, wherein the lower column is provided with an outer steel plate, the bottom of the upper column is provided with a first hole, and the upper column is fixedly assembled by inserting a bottom column body into a cylinder body formed by the outer steel plate and arranging a bolt rod penetrating through the upper column body at the first hole; the steel beam comprises a beam body and a connecting plate, a steel plate hoop is arranged on the concrete column, a second hole is formed in a concrete column body located at the position of the first bolt hole, a second bolt hole is formed in the connecting plate, the connecting plate and the steel plate hoop are fixedly connected through bolts penetrating through the first bolt hole and the second bolt hole and arranged at the position of the second hole, and a spiral stirrup is arranged in the concrete column. The RCS assembly provided by the invention can improve the horizontal bearing capacity of the concrete column and the bearing capacity and the seismic performance of the beam column node area.
Description
Technical Field
The invention belongs to the technical field of building structures, and particularly relates to an RCS (reinforced concrete) assembly of an assembled concrete column and a steel beam and a construction method thereof.
Background
The reinforced concrete column-steel beam (RCS) combined structure is a novel structure form, and is a frame structure consisting of a reinforced concrete column (RC) and a steel beam (S), and the RCS combined structure system has the advantages of the traditional steel (S) structure and the traditional Reinforced Concrete (RC) structure. Compared with a steel column, the lateral rigidity of the reinforced concrete column is superior to that of the steel column, and the manufacturing cost is more economic than that of the steel column; for the beam body, the deformation performance of the steel beam is superior to that of a concrete beam, the anti-seismic performance of the steel beam structure is stronger under a beam hinge mechanism, and the construction speed of the steel beam is higher than that of the concrete beam. Compared with the common reinforced concrete frame structure, the RCS hybrid frame structure has the advantages of lighter self weight, larger available space for buildings, higher construction speed and the like, and has more excellent performances in the aspects of rigidity, fire resistance, durability and the like. Based on the above advantages, the RCS composite structure has gained attention from the world's various countries of engineering.
The patent application with the application number of CN2020115801633 discloses an assembled RCS frame-RECC shear wall mixed structure system, wherein the assembled RCS frame comprises prefabricated reinforced concrete columns, prefabricated steel beams and prefabricated end steel beams, each prefabricated reinforced concrete column comprises a prefabricated upper column and a prefabricated lower column, longitudinal ribs of the upper column and longitudinal ribs of the lower column are fixed by the prefabricated upper column and the prefabricated lower columns through steel bar connecting pieces, then the prefabricated upper column and the prefabricated lower columns are connected through pouring slurry, an outer wrapping steel plate is arranged on each prefabricated reinforced concrete column, a steel web plate is arranged on each outer wrapping steel plate, each prefabricated steel beam is connected to the corresponding steel web plate through the corresponding prefabricated end steel beam, and each prefabricated steel beam is connected with the corresponding prefabricated end steel beam through splicing plates. The grouting sleeve connecting mode of the upper column and the lower column can cause the hidden danger of insufficient grouting of the concrete column, and is inconvenient for checking whether the grouting is full, so that the hidden dangers of insufficient horizontal bearing capacity and reduced earthquake resistance of the concrete column are caused; in addition, the connection mode of the prefabricated beam and the prefabricated reinforced concrete column is complex, the number of the connection positions is large, the structural performance and the construction efficiency of the steel beam are easily influenced, stirrups are not arranged at the connection joints of the prefabricated beam and the prefabricated concrete column, concrete is restrained only through external steel plates, the bearing capacity of the concrete column in the joint area can be reduced under the condition of large deformation, the ductility is reduced, and the anti-seismic performance can be reduced.
Disclosure of Invention
Aiming at the technical problems, the invention provides the fabricated concrete column with high horizontal bearing capacity, the RCS assembly with simple connection mode of the fabricated concrete column and the steel beam, high bearing capacity in a node area and simple, quick and efficient construction, and also provides the construction method of the fabricated concrete column and the steel beam assembly, and solves the technical problems of insufficient horizontal bearing capacity of the reinforced concrete column, reduced bearing capacity of the steel beam and the concrete column in the node area and low construction efficiency.
The technical scheme of the invention is as follows:
an RCS combined unit of an assembled concrete column and a steel beam comprises the concrete column and the steel beam, wherein the concrete column comprises an upper column and a lower column, the top end of the lower column is provided with an outer wrapping steel plate which is arranged around the column body of the lower column and forms a square cylinder structure, wherein two opposite steel plates are provided with through holes, the through holes are provided with a bolt rod penetrating through the lower column body, the bolt rod is welded and fixed with the outer steel plate, the lower column, the outer steel plate and the bolt rod are of an integrated structure formed by pouring, the bottom of the upper column is provided with a first hole which transversely penetrates through the column body, the upper column is fixedly assembled with the lower column by inserting the bottom column body into a cylinder body formed by the outer-coated steel plate and arranging a bolt rod which penetrates through the column body of the upper column at the first hole, and the bolt rod and the outer-coated steel plate are welded and fixed; the steel beam comprises a beam body and a connecting plate, and the beam body and the connecting plate are welded and fixed; the concrete column is provided with a steel plate hoop, the steel plate hoop is of a square barrel structure, the steel plate hoop is sleeved on a column body of the concrete column, two opposite side surfaces of the steel plate hoop are provided with first bolt holes, a second hole penetrating through the column body is formed in the column body of the concrete column at the position of the first bolt hole, the connecting plate is provided with a second bolt hole, and the connecting plate and the steel plate hoop are fixedly connected by arranging a bolt penetrating through the first bolt hole and the second bolt hole at the position of the second hole; and a spiral stirrup is arranged in the concrete column.
Furthermore, concrete slurry is poured between the upper column and the outer wrapping steel plate.
Further, the girder steel has two, and respectively with the steel sheet hoop is provided with the face fixed connection of first bolt hole.
Furthermore, the section area of the cylinder at the joint of the bottom end of the upper column and the steel plate is slightly smaller than that of the cylinder at the upper end, and a grouting hole is formed at the joint of the upper column and the steel plate.
Furthermore, a groove is formed in the side face of the contact part of the upper column and the outer wrapping steel plate.
Furthermore, the steel plate strips are welded on the inner side of the outer steel plate, and the steel plate strips are formed by welding four steel plates.
Further, the spiral stirrup is of a square structure.
Furthermore, the steel beam is made of steel materials, the cross section of the beam body is I-shaped, and a regular hexagonal hole is formed in the beam body.
Meanwhile, the invention also provides a construction method of the RCS combined piece of the fabricated concrete column and the steel beam, which comprises the following steps:
the method comprises the following steps: processing the steel beams, the externally-coated steel plates, the steel plate hoops, the steel plate strips, the tie rods, the spiral stirrups and the bolts in a factory, and welding the steel plate strips and the externally-coated steel plates together;
step two: binding the spiral stirrup and the longitudinal steel bar into a steel bar cage;
step three: arranging an outer-wrapping steel plate at the top end of a lower column of the steel reinforcement cage, welding and fixing the outer-wrapping steel plates with each other, arranging a bolt rod at a through hole of the outer-wrapping steel plate, welding and fixing the bolt rod and the outer-wrapping steel plate, and reserving a first hole in a node area of the steel reinforcement cage; and arranging the steel plate hoop on the steel reinforcement cage, and reserving a second hole for arranging a bolt at the position of the steel reinforcement cage, where the steel plate hoop is provided with the first bolt hole.
Step four: preparing concrete, and pouring the prepared concrete into a prefabricated concrete column model;
step five: and assembling the bottom end of the hardened and formed concrete upper column into a cylinder formed by an outer-coated steel plate on the lower column, inserting a bolt rod penetrating through the cylinder of the upper column into a through hole of the outer-coated steel plate, and welding and fixing the bolt rod and the outer-coated steel plate.
Step six: grouting from a grouting hole reserved in the upper column, and filling slurry into a gap between the upper column and the outer steel plate and a first hole provided with a bolt rod until the slurry is solidified;
step seven: the steel beam is mounted on the steel plate hoop of the concrete column body by using bolts.
Further, when the upper column is assembled to the lower column, the position where the upper column is assembled is raised by 3mm to 5 mm.
The invention has the following beneficial effects:
1, through pouring into integral type structure down post and outsourcing steel sheet and peg to insert down the post during outsourcing steel sheet forms the barrel on the post, the rethread sets up in the first hole department of post and assembles into assembled concrete post with outsourcing steel sheet welded fastening's peg, thereby can prevent that the emergence that the grout is not full leads to the horizontal bearing capacity to reduce the condition in cylinder fitting department from appearing, and connect the assembly mode also more simple swift, can improve the efficiency of construction.
2, through set up steel sheet hoop and spiral stirrup on concrete column, can make the concrete receive the dual restraint of steel sheet hoop and spiral stirrup, the regional bearing capacity of reinforcing beam column node improves the ductility of assembled concrete column and girder steel RCS sub-assembly to improve the anti-seismic performance of assembled concrete column and girder steel RCS sub-assembly.
Drawings
FIG. 1 is a schematic structural view of a fabricated concrete column and steel beam connection node according to the present invention;
FIG. 2 is a schematic side view of a fabricated concrete column and steel beam connection node according to the present invention;
FIG. 3 is a schematic front view of the assembled upper and lower columns of the present invention;
FIG. 4 is a side elevational view of the assembled upper and lower columns of the present invention;
FIG. 5 is a schematic view of the upper and lower columns of the present invention when assembled;
FIG. 6 is a schematic side view of a spiral stirrup in a concrete column according to the present invention;
FIG. 7 is a schematic top view of a spiral stirrup in a concrete column according to the present invention;
FIG. 8 is a schematic structural view of the outer steel plate and the steel strip of the present invention welded and fixed together;
FIG. 9 is a perspective view of the steel plate hoop of the present invention;
FIG. 10 is a schematic perspective view of the steel beam of the present invention;
in the figure: 1 concrete column, 10 upper columns, 100 first holes, 101 grouting holes, 102 grooves, 11 lower columns, 111 second holes, 2 steel beams, 20 beam bodies, 21 connecting plates, 210 second bolt holes, 3 steel plates wrapped outside, 30 through holes, 4 tie rods, 5 steel plate hoops, 50 first bolt holes, 6 bolts, 7 spiral stirrups and 8 steel plate strips.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-10, the present invention provides an assembly of an assembled concrete column and a steel beam, comprising a concrete column 1 and a steel beam 2, wherein the concrete column 1 is a square column, the concrete column 1 comprises an upper column 10 and a lower column 11, an outer-coated steel plate 3 is arranged on the top end of the lower column 11, the outer-coated steel plate 3 is arranged around the column body of the lower column and is respectively arranged on four side surfaces of the lower column, two adjacent outer-coated steel plates are fixedly connected by welding and form a square cylinder structure, wherein two opposite outer-coated steel plates 3 are provided with through holes 30, the through holes 30 are arranged in 4 rows, the lower two rows of through holes 30 are provided with tie rods 4 penetrating through the column body of the lower column 11, the upper two rows of through holes 30 are in a vacant state, the tie rods 4 are welded and fixed with the outer-coated steel plates 3, so that the lower column 11, the outer-coated steel plates 3 and the tie rods 4 can be connected into an integral structure, the steel bar is formed by pouring, when pouring is carried out, the outer-coated steel plate 3 is firstly arranged on the steel bar cage of the lower column 11 in a surrounding mode, then the tie rods 4 are welded at the through holes of the outer-coated steel plate 3, and finally pouring is carried out; the bottom of the upper column 10 is provided with a first hole 100 which transversely penetrates through the column body, the upper column 10 is fixedly assembled by inserting the bottom column body into a cylinder body formed by an outer-wrapping steel plate 3 and arranging a bolt 4 which penetrates through the upper column body at the first hole 100 and the lower column 11, when the upper column and the lower column are assembled, the bottom of the upper column 10 is inserted into the cylinder body formed by the outer-wrapping steel plate 3 on the lower column 11, at the moment, two rows of through holes 30 on the upper half part of the outer-wrapping steel plate 3 correspond to the first hole 100 on the upper column 11, the bolt 4 which penetrates through the first hole 100 is inserted into the through hole 30 of the outer-wrapping steel plate 3, the bolt 4 penetrates out of the bolt holes 30 on two opposite surfaces of the outer wrapping 30, and finally, the bolt 4 and the outer-wrapping steel plate 3 are welded together, so that the upper column 10 and the lower column 11 can be assembled and fixed; in order to conveniently assemble the upper column 10 into a cylinder formed by the outer-coated steel plate 3, the section area of the cylinder at the joint of the bottom of the upper column 10 and the outer-coated steel plate 3 is slightly smaller than that of the cylinder at the upper end; in order to improve the structural performance of the assembled upper column 10, the lower column 11 and the outer steel plate 3, after the upper column 10 is assembled into the cylinder formed by the cladding steel plate 3, grouting operation is performed on the gap between the upper column 10 and the cladding steel plate 3, so that the grouting operation is convenient and the slurry is filled in the whole gap, a grouting hole 101 is arranged at the joint of the bottom of the upper column 10 and the upper edge of the outer-coated steel plate 3, a groove 102 is arranged on the side surface of the contact part of the upper column 10 and the outer-coated steel plate, the grouting hole 101 can conveniently pour the slurry into the gap between the upper column 10 and the outer-coated steel plate 3, the grooves 102 allow slurry to be introduced into the gap between the bolt 4 and the first bore 100, by a grouting operation, the upper column 10, the outer steel plate 3 and the lower column 11 can be connected into a compact whole, so that the compactness and the structural performance of the fabricated concrete column are further improved; in order to increase the roughness of 3 internal surfaces of outsourcing steel sheet, increase the friction between grout material and the outsourcing steel sheet 3, 3 internal surfaces at the outsourcing steel sheet still are provided with the lath 8, the lath 8 is the structure that four steel sheet welding formed, the lath 8 welds on the outsourcing steel sheet 3, the lath 8 also can prevent that the passing through department cross-section of outsourcing steel sheet 3 from weakening too greatly simultaneously, lead to the intensity reduction of outsourcing steel sheet 3, when the outsourcing steel sheet 3 is connected with last post 10, lath 8 can imbed in the recess 102. For the confined power and the post bearing capacity of concrete in improving assembled concrete column, still be provided with spiral stirrup 7 in the concrete column cylinder, spiral stirrup 7 is square structure, through setting up the spiral stirrup, can provide higher confined power to the concrete, and can prevent the difficulty of putting in the position of beam column node department, put or not put the node stirrup less, thereby lead to the emergence of frame node shock resistance decline condition, and simultaneously, it is also relatively easier during the pouring concrete, the condition such as hole and exposed reinforcement can not appear causing.
The steel beam 2 comprises a beam body 20 and a connecting plate 21, the beam body 20 and the connecting plate 21 are made of a Q345 steel material, the cross section of the beam body 20 is I-shaped, the beam body 20 and the connecting plate 21 are fixedly connected in a welding mode, the beam body 20 is arranged perpendicular to the connecting plate 21, a steel plate hoop 5 is arranged on a column body of the concrete column 1, the installation position of the steel plate hoop 5 is not the connection node of an upper column and a lower column, the steel plate hoop 5 can be the column body of the upper column 10 or the column body of the lower column 11, the steel plate hoop 5 is also of a square barrel structure, the steel plate hoop 5 is sleeved on the column body of the concrete column 1, first bolt holes 50 are arranged on two opposite side surfaces of the steel plate hoop 5, a second column body 111 penetrating through the column body is arranged on the concrete column 1 at the hole position of the first bolt holes 50, in the concrete column, a plastic pipe is arranged on the position, which is opposite to the first bolt holes 50, and reserved on the steel cage, finally, pouring concrete; the shape of the connecting plate 21 is the same as the shape of the side surface of the steel plate hoop 5, the connecting plate 21 is provided with second bolt holes 210 the number of which is the same as that of the first bolt holes 50 on the single surface of the steel plate hoop 5, the connecting plate 21 and the steel plate hoop 5 are fixedly connected through bolts 6 which penetrate through the first bolt holes 50 and the second bolt holes 210 and are arranged at the second holes 11, the bolts 6 are high-strength bolts, and when in specific connection, the connecting plate 21 can be attached to the side surface of the steel plate hoop 5, when the connecting plate 21 is attached to the side of the steel plate hoop 5, the second bolt hole 210 on the connecting plate 21 coincides with the first bolt hole 50 on the steel plate hoop 5, the bolts 6 on the steel plate hoops 5 can extend out of the second bolt holes 210 on the connecting plate 21, and finally nuts are screwed on the bolts 6 to fix the connecting plate 21 and the steel plate hoops 5, namely, the steel beams 2 are installed on the fabricated concrete column to form an RCS assembly; the steel beam 2 is provided with two steel beams which are respectively arranged on two side surfaces of the steel plate hoop 5 provided with the first bolt holes 50; in order to save steel and not weaken the bearing capacity of the steel beam 2, the beam body 21 is provided with a regular hexagonal hole.
The invention also provides a construction method of the assembled concrete column and steel beam RCS combined piece, which comprises the following concrete construction steps:
the method comprises the following steps: processing the steel plate into a beam, a steel plate hoop, a steel plate strip, a bolt rod and a spiral stirrup in a factory, and welding the steel plate strip and the steel plate hoop together;
step two: binding the spiral stirrup and the longitudinal steel bar into a steel bar cage;
step three: arranging an outer-wrapping steel plate at the top end of a lower column of the steel reinforcement cage, welding and fixing the outer-wrapping steel plates with each other, arranging a bolt rod at a through hole of the outer-wrapping steel plate, welding and fixing the bolt rod and the outer-wrapping steel plate, and reserving a first hole in a node area of the steel reinforcement cage; and arranging the steel plate hoop on the steel reinforcement cage, and reserving a second hole for arranging a bolt at the position of the steel reinforcement cage, where the steel plate hoop is provided with the first bolt hole.
Step four: preparing concrete, and pouring the prepared concrete into a prefabricated concrete column model;
step five: assembling the bottom end of the hardened and formed concrete upper column into an outer-coated steel plate on the lower column, inserting a bolt rod penetrating through the column body of the upper column into a through hole of the outer-coated steel plate, and welding and fixing the bolt rod and the outer-coated steel plate;
step six: grouting from a grouting hole reserved in the upper column, and fully grouting the gap between the upper column and the steel plate hoop and the hole provided with the bolt rod with slurry until the slurry is solidified;
step seven: the steel beam is mounted on the steel plate hoop of the concrete column body by using bolts.
In the process of assembling and grouting, in order to facilitate the later observation of whether the grouting material is full, when an upper column is assembled on a lower column, the assembling position of the upper column 10 is increased by 3-5 mm, through the operation, the upper column 10 can be assembled in a cylinder formed by an outer steel plate without completely contacting with the upper edge of the outer steel plate 3, and a gap convenient for observing the grouting condition can be reserved; meanwhile, in order to ensure the grouting quality and reduce excessive bubbles generated in the grouting process, manual pulping is adopted as the grouting mode, and when grouting is performed, a manual grouting gun is aligned to a grouting hole 101 formed in the upper column 10 to slowly grout and observe whether the surrounding grout is fully grouted or not through a gap between the upper column and the steel plate hoop.
According to the invention, the lower column 11, the outer-coated steel plate 3 and the bolt rod 4 are poured into an integrated structure, the upper column 10 is inserted into the cylinder body formed by the outer-coated steel plate 3 on the lower column 11, and the bolt rod 4 welded and fixed with the outer-coated steel plate 3 is arranged at the first hole 100 of the upper column 10 to assemble the fabricated concrete column, so that the situation that the horizontal bearing capacity is reduced due to insufficient grouting at the assembly position of the column body can be prevented, the connection and assembly mode is simple and rapid, and the construction efficiency can be improved; meanwhile, the steel plate hoops 5 and the spiral hoops 7 are arranged on the concrete column 1, so that the concrete can be subjected to double restraint of the steel plate hoops 5 and the spiral hoops 7, the bearing capacity of a beam column joint area is enhanced, the ductility of the assembled concrete column and the steel beam RCS combined piece is improved, and the anti-seismic performance of the assembled concrete column and the steel beam RCS combined piece is improved.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, and the scope of protection is still within the scope of the invention.
Claims (10)
1. The utility model provides a RCS sub-assembly of assembled concrete column and girder steel, includes concrete column (1) and girder steel (2), its characterized in that: the concrete column (1) comprises an upper column (10) and a lower column (11), wherein an outer-coated steel plate (3) is arranged at the top end of the lower column (11), the outer-coated steel plate (3) surrounds the column body of the lower column and forms a square cylinder structure, through holes (30) are formed in two opposite outer-coated steel plates, a bolt rod (4) penetrating through the column body of the lower column (11) is arranged at the position of each through hole (30), the bolt rod (4) and the outer-coated steel plate (3) are welded and fixed, the lower column (11) and the outer-coated steel plates (3) as well as the bolt rod (4) are of an integrated structure formed by pouring, a first hole (100) transversely penetrating through the column body is formed in the bottom of the upper column (10), the lower column (10) is inserted into a cylinder body formed by the outer-coated steel plate (3) through the bottom column body, and the bolt rod (4) penetrating through the upper column body and the lower column (11) are arranged at the position of the first hole (100) to realize fixed assembly, the bolt rod (4) is fixedly welded with the outer steel plate (3); the steel beam (2) comprises a beam body (20) and a connecting plate (21), and the beam body (20) and the connecting plate (21) are welded and fixed; the concrete column (1) is provided with a steel plate hoop (5), the steel plate hoop (5) is of a square barrel structure, the steel plate hoop (5) is sleeved on the column body of the concrete column (1), two opposite side surfaces of the steel plate hoop (5) are provided with first bolt holes (50), the column body of the concrete column (1) positioned at the first bolt holes (50) is provided with second holes (111) penetrating through the column body, the connecting plate (21) is provided with second bolt holes (210), and the connecting plate (21) and the steel plate hoop (5) are fixedly connected by arranging bolts (6) penetrating through the first bolt holes (50) and the second bolt holes (210) at the second holes (11); the concrete column (1) is internally provided with a spiral stirrup (7).
2. An RCS assembly of fabricated concrete column and steel beam according to claim 1, characterized in that: concrete slurry is poured between the upper column and the outer steel plate.
3. An RCS assembly of fabricated concrete column and steel beam according to claim 1, characterized in that: girder steel (2) have two, and respectively with steel sheet hoop (5) is provided with the face fixed connection of first bolt hole (50).
4. An RCS assembly of fabricated concrete column and steel beam according to claim 1, characterized in that: the section area of the cylinder at the joint of the bottom end of the upper column (10) and the outer steel plate (3) is slightly smaller than that of the cylinder at the upper end, and a grouting hole (101) is formed in the joint of the upper column (10) and the outer steel plate (3).
5. An RCS assembly of fabricated concrete column and steel beam according to claim 1, characterized in that: and a groove (102) is formed in the side surface of the contact part of the upper column (10) and the outer wrapping steel plate.
6. An RCS assembly of fabricated concrete column and steel beam according to claim 1, characterized in that: the steel plate strip (8) is welded on the inner side of the outer steel plate (3), and the steel plate strip (8) is formed by welding four steel plates.
7. An RCS assembly of fabricated concrete column and steel beam according to claim 1, characterized in that: the spiral stirrup (7) is of a square structure.
8. An RCS assembly of fabricated concrete column and steel beam according to claim 1, characterized in that: the steel beam (2) is made of steel materials, the cross section of the beam body (20) is I-shaped, and a regular hexagonal hole is formed in the beam body (20).
9. A construction method of an RCS assembly of a fabricated concrete column and a steel beam is characterized by comprising the following steps:
the method comprises the following steps: processing the steel beams, the externally-coated steel plates, the steel plate hoops, the steel plate strips, the tie rods, the spiral stirrups and the bolts in a factory, and welding the steel plate strips and the externally-coated steel plates together;
step two: binding the spiral stirrup and the longitudinal steel bar into a steel bar cage;
step three: arranging an outer-wrapping steel plate at the top end of a lower column of the steel reinforcement cage, welding and fixing the outer-wrapping steel plates with each other, arranging a bolt rod at a through hole of the outer-wrapping steel plate, welding and fixing the bolt rod and the outer-wrapping steel plate, and reserving a first hole in a node area of the steel reinforcement cage; arranging a steel plate hoop on a reinforcement cage, and reserving a second hole for arranging a bolt at the reinforcement cage part where the steel plate hoop is provided with a first bolt hole;
step four: preparing concrete, and pouring the prepared concrete into a prefabricated concrete column model;
step five: assembling the bottom end of the hardened and formed concrete upper column into a cylinder formed by an outer-coated steel plate on the lower column, inserting a bolt rod penetrating through the cylinder of the upper column into a through hole of the outer-coated steel plate, and welding and fixing the bolt rod and the outer-coated steel plate;
step six: grouting from a grouting hole reserved in the upper column, and filling slurry into a gap between the upper column and the outer steel plate and a first hole provided with a bolt rod until the slurry is solidified;
step seven: the steel beam is mounted on the steel plate hoop of the concrete column body by using bolts.
10. A method of constructing an RCS assembly of fabricated concrete column and steel beam according to claim 9, characterized in that: when the upper column (10) is assembled to the lower column (11), the position where the upper column (10) is assembled is raised by 3mm to 5 mm.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114809445A (en) * | 2022-04-28 | 2022-07-29 | 广东睿住住工科技有限公司 | Modular steel column installation method and modular steel column assembly |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114809445A (en) * | 2022-04-28 | 2022-07-29 | 广东睿住住工科技有限公司 | Modular steel column installation method and modular steel column assembly |
| CN114809445B (en) * | 2022-04-28 | 2024-03-08 | 广东睿住住工科技有限公司 | Modularized steel column installation method and modularized steel column assembly |
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