CN112376706A - Prefabricated steel-encased concrete column and concrete beam joint and construction process - Google Patents
Prefabricated steel-encased concrete column and concrete beam joint and construction process Download PDFInfo
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- CN112376706A CN112376706A CN202011255426.3A CN202011255426A CN112376706A CN 112376706 A CN112376706 A CN 112376706A CN 202011255426 A CN202011255426 A CN 202011255426A CN 112376706 A CN112376706 A CN 112376706A
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- 239000004567 concrete Substances 0.000 title claims abstract description 301
- 238000010276 construction Methods 0.000 title claims abstract description 35
- 238000000034 method Methods 0.000 title claims abstract description 22
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 600
- 239000010959 steel Substances 0.000 claims abstract description 600
- 239000011150 reinforced concrete Substances 0.000 claims abstract description 117
- 238000013461 design Methods 0.000 claims abstract description 25
- 238000004873 anchoring Methods 0.000 claims description 129
- 238000004519 manufacturing process Methods 0.000 claims description 55
- 238000003466 welding Methods 0.000 claims description 49
- 238000009434 installation Methods 0.000 claims description 11
- 238000012545 processing Methods 0.000 claims description 9
- 210000001503 joint Anatomy 0.000 claims description 3
- 238000004806 packaging method and process Methods 0.000 claims description 3
- 210000004556 brain Anatomy 0.000 claims description 2
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 230000007547 defect Effects 0.000 abstract description 3
- 230000002787 reinforcement Effects 0.000 abstract description 3
- 238000011161 development Methods 0.000 abstract description 2
- 239000013589 supplement Substances 0.000 abstract description 2
- 238000012946 outsourcing Methods 0.000 description 8
- 238000009415 formwork Methods 0.000 description 4
- 230000003014 reinforcing effect Effects 0.000 description 3
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 2
- 238000005336 cracking Methods 0.000 description 2
- 229910001208 Crucible steel Inorganic materials 0.000 description 1
- 229910000746 Structural steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000009417 prefabrication Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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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
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/30—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts being composed of two or more materials; Composite steel and concrete constructions
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Abstract
The prefabricated steel-encased concrete column and concrete beam joint and the construction process are divided into three forms, wherein the first form comprises a prefabricated steel-encased concrete column, a prefabricated reinforced concrete beam and a prefabricated reinforced concrete beam, wherein the prefabricated reinforced concrete beam and the prefabricated reinforced concrete beam are pre-embedded on the column; the second type consists of a prefabricated steel-encased concrete column, a prefabricated steel-encased concrete beam and a prefabricated steel-encased concrete beam, wherein the prefabricated steel-encased concrete beam is embedded in the column; the third type is composed of prefabricated steel-encased concrete columns and prefabricated reinforced concrete beams; in order to improve the insufficient bearing capacity of the fabricated frame structure column, the common reinforced concrete column is replaced by the steel-encased concrete column. The steel-clad structure does not increase the load of the member and the structure basically, does not change the structural system and the stress form of the original design, and the steel-clad reinforcement supplements the defects of the steel bars of the original member on one hand and effectively improves the bearing capacity of the member on the other hand, and effectively protects the concrete of the original member, limits the development of cracks and improves the rigidity and the crack resistance of the original member by sticking large-area steel plates on the other hand.
Description
Technical Field
The invention belongs to the technical field of building structures, and particularly relates to a prefabricated steel-encased concrete column and concrete beam joint and a construction process.
Background
At present, most of building structures in China are traditional cast-in-place concrete structures, the cast-in-place concrete structures are complex in construction procedures, long in construction period and poor in anti-seismic performance and ductility, large-area cracking of the structures is easily caused under the condition of large-volume concrete or poor maintenance, and the structures are limited by factors such as construction space, climate conditions and environmental protection. Practice proves that the ductility and the bearing capacity of the column seriously affect the anti-seismic performance of the fabricated frame structure, and the fabricated frame structure has the defects of poor column bearing capacity and integrity, insufficient node anti-seismic capacity, complex construction procedures and the like. In most fabricated frame structures, the beams and the columns are connected mainly through reinforcing steel bars in the forms of mechanical sleeves, welding connection or wet connection, and the like, so that the formed joints are complex in structure, more in construction procedures, large in workload and indirect in force transmission. In view of the above, in order to improve the limitation of the current node connection form, develop a new prefabricated externally-wrapped steel concrete column-beam node connection form and fully exert the superiority of the assembly type structure, the invention designs several prefabricated externally-wrapped steel concrete column and concrete beam node forms and provides the construction process thereof.
Disclosure of Invention
In order to achieve the purpose, the invention adopts the following technical scheme:
prefabricating nodes of the externally-coated steel concrete columns and the concrete beams, wherein the nodes comprise the prefabricated externally-coated steel concrete columns, prefabricated reinforced concrete beams embedded on the columns and prefabricated reinforced concrete beams; the prefabricated steel-encased concrete column comprises an in-column steel framework, encased angle steels and in-column anchoring steel bars, wherein the encased angle steels are uniformly distributed along the circumferential direction, the in-column steel framework is arranged at the geometric center of a region enclosed by the encased angle steels, the inner surfaces of support arms of the encased angle steels are welded with the ends of stirrups of the in-column steel framework, in-column anchoring steel bars are arranged inside the in-column steel framework, hooks are arranged at two ends of the in-column anchoring steel bars, the horizontal parts of the in-column anchoring steel bars extend to the outer side of the region formed by the encased angle steels to form overhanging parts, the outer sides of the overhanging parts are provided with in-beam steel frameworks, the ends of the overhanging parts and longitudinal bars of the in-beam steel frameworks are welded with an end plate I, high-strength bolts are arranged in bolt holes of the end plate I, and nuts of the in-column steel framework, the encased angle steels, the in-column, the steel skeleton in the beam, the overhanging part, the high-strength bolt, the end plate I and the concrete form a prefabricated reinforced concrete beam pre-embedded on the column; the precast reinforced concrete beam comprises an in-beam steel skeleton, in-beam anchoring steel bars and an end plate II, wherein in-beam anchoring steel bars are arranged in the in-beam steel skeleton, the end parts of the in-beam anchoring steel bars and the end parts of the in-beam steel skeleton longitudinal bars are welded on the end plate II, the in-beam steel skeleton and the in-beam anchoring steel bars are packaged in concrete, and a post-pouring groove is reserved at a position close to the end plate II; aligning an end plate II of the prefabricated reinforced concrete beam with an end plate I of the prefabricated reinforced concrete beam pre-embedded on the column, enabling the high-strength bolt to penetrate through a reserved bolt hole of the end plate II and to be fastened through a nut, filling post-cast concrete in the post-cast groove, and packaging the high-strength bolt and longitudinal bars of an inner beam steel framework on the prefabricated reinforced concrete beam in the post-cast concrete.
Outer steel-clad bottom plates are respectively arranged on the lower surfaces of the precast reinforced concrete beams pre-embedded on the columns and the lower surfaces of the precast reinforced concrete beams, the end part of one outer steel-clad bottom plate is welded with the end plate I, and the end part of the other outer steel-clad bottom plate is welded with the end plate II; the upper surface of the outer steel-clad bottom plate is welded with stirrups of a steel framework in the beam.
The sections of the precast reinforced concrete beam embedded on the column and the precast reinforced concrete beam are T-shaped or rectangular, and when the sections are T-shaped sections, the end plate I and the end plate II are both T-shaped end plates; when the cross section is rectangular, the end plate I and the end plate II are both rectangular end plates.
The construction process of the prefabricated steel-encased concrete column and concrete beam joint comprises the following steps:
manufacturing a member consisting of a prefabricated externally-coated steel concrete column and a prefabricated reinforced concrete beam pre-embedded on the column, arranging in-column anchoring steel bars according to design, binding an in-column steel framework, placing the in-column anchoring steel bars on the inner side of the in-column steel framework, and welding stirrups of the in-column steel framework with the inner surface of a support arm of externally-coated angle steel; simultaneously binding an in-beam steel skeleton of the precast reinforced concrete beam pre-embedded on the column, and adopting stirrup encryption processing at a connection node of the in-beam steel skeleton; sleeving a steel framework in the beam outside the overhanging part of the anchoring steel bar in the column; welding one end of a longitudinal rib of the steel skeleton in the beam on the outer surface of the outer-coated angle steel support arm, and welding the other end of the longitudinal rib of the steel skeleton in the beam and the end part of the outward extending part of the anchoring steel bar in the column on the end plate I; penetrating a screw rod of the high-strength bolt through a bolt hole of the end plate I, supporting a template, and integrally pouring concrete to complete the manufacturing of the component;
manufacturing a precast reinforced concrete beam, arranging anchoring steel bars in the beam according to design, binding a steel framework in the beam, and performing stirrup encryption processing at a connecting node of the steel framework in the beam; welding the end plate II on the longitudinal bars of the steel framework in the beam and the anchoring steel bars in the beam; erecting a formwork, pouring concrete, reserving a post-pouring groove at the end of the prefabricated reinforced concrete beam at the end plate II, and finishing the manufacturing of the prefabricated reinforced concrete beam;
butting the prefabricated steel-encased concrete column with the prefabricated reinforced concrete beam through the prefabricated reinforced concrete beam pre-embedded on the column on site, enabling a stud of a high-strength bolt on the prefabricated steel-encased concrete column to penetrate through a bolt hole on the prefabricated reinforced concrete beam end plate II, and screwing a nut; and pouring concrete into the reserved post-pouring groove, and finishing construction.
And step 1, welding outer-coated steel bottom plates at the bottoms of the in-beam anchoring steel bars of the precast reinforced concrete beam pre-embedded on the column and the stirrups of the in-beam anchoring brain bars of the precast reinforced concrete beam.
The prefabricated steel-encased concrete column and concrete beam joint comprises a prefabricated steel-encased concrete column, a prefabricated steel-encased concrete beam and a prefabricated steel-encased concrete beam, wherein the prefabricated steel-encased concrete beam is embedded in the column; the prefabricated steel-encased concrete column comprises an in-column steel framework, encased angle steels and in-column anchoring steel bars, wherein the encased angle steels are uniformly distributed along the circumferential direction, the in-column steel framework is arranged at the geometric center of a region enclosed by the encased angle steels, the inner surfaces of support arms of the encased angle steels are welded with the ends of stirrups of the in-column steel framework, the in-column anchoring steel bars are arranged inside the in-column steel framework, the horizontal parts of the in-column anchoring steel bars extend to the outer side of the region formed by the encased angle steels to form an overhanging part, the outer sides of the overhanging parts are provided with an in-beam steel framework, an encased steel bottom plate is arranged below the in-beam steel framework, one end of the encased steel bottom plate, far away from the encased angle steels, and the ends of longitudinal bars of the in-beam steel framework are respectively welded with connecting steel plates with bolt holes, two connecting steel plates with bolt holes are arranged right opposite to each other, and the in-column steel framework, the encased, the steel skeleton, the overhanging part, the steel bottom plate and the concrete in the beam form a prefabricated steel concrete beam embedded in the column, and the area surrounded by the two connecting steel plates with bolt holes forms a post-pouring area; the prefabricated outsourcing steel reinforced concrete roof beam includes girder inner steel skeleton, girder inner anchor reinforcing bar and outsourcing steel bottom plate, girder inner steel skeleton inboard is provided with girder inner anchor reinforcing bar, the welding of girder inner steel skeleton stirrup bottom has outsourcing steel bottom plate, the joint steel sheet of taking the bolt hole has been welded respectively to girder inner steel skeleton top longitudinal reinforcement tip and outsourcing steel bottom plate tip lower surface, and two joint steel sheets of taking the bolt hole are just to setting up, encapsulate girder inner steel skeleton and girder inner anchor reinforcing bar in the concrete, and the regional formation post-cast district that two joint steel sheet of taking the bolt hole enclose, pre-buried joint steel sheet and the outsourcing steel sheet of taking the bolt hole of prefabricated outsourcing steel reinforced concrete roof beam on the post and the joint steel sheet and the outsourcing steel sheet of taking the bolt hole of prefabricated outsourcing steel concrete roof beam pass through bolted connection to water the filled concrete in the.
The sections of the prefabricated externally-coated steel concrete beam pre-embedded on the column and the prefabricated externally-coated steel concrete beam are T-shaped or rectangular.
The construction process of the prefabricated steel-encased concrete column and concrete beam joint comprises the following steps:
manufacturing a prefabricated steel-encased concrete column, a prefabricated steel-encased concrete beam component embedded on the column, arranging in-column anchoring steel bars according to design, binding an in-column steel skeleton and enabling the in-column anchoring steel bars to be located on the inner side of the in-column steel skeleton, and welding the end parts of stirrups of the in-column steel skeleton and support arms of the encased angle steels; simultaneously binding an inner beam steel framework of the prefabricated externally-wrapped steel concrete beam pre-embedded on the column, and adopting stirrup encryption processing at a connecting node of the inner beam steel framework; welding an outer steel-clad bottom plate at the bottom of the stirrup of the steel framework in the beam, and welding a connecting steel plate with a bolt hole at the position, close to the connecting node, of the longitudinal rib at the top of the steel framework in the beam and the upper surface of the outer steel-clad bottom plate; pouring concrete on the formwork supporting plate, and reserving a post-pouring area in the connecting steel plate area with the bolt hole to finish the manufacturing of the component;
manufacturing a prefabricated externally-wrapped steel concrete beam, binding a steel skeleton in the beam according to the design, arranging anchoring steel bars in the beam on the inner side of the steel skeleton in the beam, and arranging the anchoring steel bars in the beam at one end of a connecting node; welding an outer steel-clad bottom plate at the bottom of a stirrup of a steel framework in the beam, and respectively welding connecting steel plates with bolt holes at the end part of a longitudinal bar at the top of the steel framework in the beam and the lower surface of the outer steel-clad bottom plate; pouring concrete in the supporting template, and reserving a post-pouring area in the connecting steel plate area with the bolt hole to finish the manufacturing of the component;
butting a prefabricated steel-encased concrete column with a prefabricated steel-encased concrete beam through a prefabricated steel-encased concrete beam pre-embedded on the column, butting an encased steel base plate on the prefabricated steel-encased concrete beam pre-embedded on the column with a connecting steel plate with bolt holes on the prefabricated steel-encased concrete beam, butting the connecting steel plate with bolt holes on the prefabricated steel-encased concrete beam pre-embedded on the column with the encased steel base plate on the prefabricated steel-encased concrete beam, butting the connecting steel plate with bolt holes on the prefabricated steel-encased concrete beam pre-embedded on the column with the connecting steel plate with bolt holes on the prefabricated steel-encased concrete beam, and ensuring that the upper and lower bolt holes are aligned; the high-strength bolt penetrates through the connecting steel plate with the bolt hole and the steel-clad bottom plate, and the bolt is screwed up to complete bolting; and (5) pouring post-cast concrete at the joint of the connecting node, and finishing construction.
Prefabricating nodes of the externally-coated steel concrete columns and the concrete beams, wherein the nodes comprise prefabricated externally-coated steel concrete columns and prefabricated reinforced concrete beams II; the prefabricated steel-encased concrete column comprises an in-column steel framework, encased angle steels and in-column anchoring steel bars, wherein the encased angle steels are uniformly distributed along the circumferential direction, the in-column steel framework is arranged at the geometric center of a region enclosed by the encased angle steels, the in-column anchoring steel bars are arranged in the in-column steel framework, bent hooks are arranged at the tail ends of the vertical parts of the in-column anchoring steel bars, annular steel plate sleeves are sleeved outside the encased angle steels and are arranged at connecting nodes of the prefabricated encased steel-encased concrete column, the tail ends of the horizontal parts of the in-column anchoring steel bars are welded with the inner walls of the annular steel plate sleeves, high-strength bolts are arranged on the connecting end cylinder walls of the annular steel plate sleeves, and nuts of the in-column steel framework, the encased angle steels, the in-column anchoring steel bars and the high; the prefabricated reinforced concrete beam II comprises an in-beam steel skeleton, in-beam anchoring steel bars and a flange plate, wherein the in-beam anchoring steel bars are arranged on the inner side of the in-beam steel skeleton, the end parts of the in-beam steel skeleton longitudinal bars and the end parts of the in-beam anchoring steel bars are welded on the flange plate, and the in-beam steel skeleton and the in-beam anchoring steel bars are packaged in concrete; the prefabricated steel-encased concrete column and the prefabricated reinforced concrete beam II are connected into a whole through a high-strength bolt and a flange plate.
And the lower surface of the prefabricated reinforced concrete beam II is provided with an outer steel-clad bottom plate, the end part of the outer steel-clad bottom plate is welded with the flange plate, and the upper surface of the outer steel-clad bottom plate is welded with the stirrup of the steel skeleton in the beam.
The section of the precast reinforced concrete beam II is T-shaped or rectangular.
The construction process of the prefabricated steel-encased concrete column and concrete beam joint comprises the following steps:
manufacturing a prefabricated steel-encased concrete column, arranging an in-column anchoring steel bar according to design requirements, binding an in-column steel skeleton, positioning the in-column anchoring steel bar at the inner side of the in-column steel skeleton, and welding the end part of a stirrup of the in-column steel skeleton on the inner surface of a support arm of the encased angle steel; sleeving a circumferential steel plate sleeve at a column connecting node, and welding the tail end of a horizontal section of an anchoring steel bar in the column to the inner surface of the circumferential steel plate sleeve; arranging a high-strength bolt in a bolt hole of the annular steel plate, and enabling a stud part of the high-strength bolt to extend out of the annular steel plate sleeve; integrally pouring concrete of the column to finish the manufacture of the prefabricated steel-encased concrete column;
manufacturing a precast reinforced concrete beam II, binding a steel framework in the beam according to design requirements, arranging an anchoring steel bar in the beam in the steel framework in the beam, and welding a flange plate at the end parts of the longitudinal bar of the steel framework in the beam and the anchoring steel bar in the beam; integrally pouring concrete to finish the manufacture of the prefabricated reinforced concrete beam II;
the prefabricated externally-coated steel concrete column is in butt joint with the prefabricated reinforced concrete beam II on site; enabling a stud of a high-strength bolt of the prefabricated steel-encased concrete column to penetrate through a bolt hole of a flange plate of the prefabricated reinforced concrete beam II, and screwing a nut to complete bolting; and finishing construction.
And 1, welding an outer steel-clad bottom plate at the bottom of the stirrup of the steel framework in the beam, and welding the end part of the outer steel-clad bottom plate with the flange plate.
The invention has the beneficial effects that:
in order to improve the insufficient bearing capacity of the fabricated frame structure column, the common reinforced concrete column is replaced by the steel-encased concrete column. The external steel-clad structure basically does not increase the load of the member and the structure, does not change the structural system and the stress form of the original design, supplements the defects of the steel bar of the original member on one hand through steel-clad reinforcement, effectively improves the bearing capacity of the original member, and effectively protects the concrete of the original member, limits the development of cracks and improves the rigidity and the anti-cracking capacity of the original member through the adhesion of large-area steel plates on the other hand.
The invention adopts a prefabrication mode, has simple construction process, small workload and greatly shortened construction period, and the prefabricated beam column is integrally formed, has good integrity and effectively improves the shock resistance of the node.
Drawings
FIG. 1 is a schematic view of a prefabricated steel-encased concrete column and concrete beam joint in embodiment 1 of the present invention;
FIG. 2 is a top view of a prefabricated steel-encased concrete column and concrete beam joint in accordance with embodiment 1 of the present invention;
FIG. 3 is a schematic diagram of a prefabricated externally-wrapped steel concrete column and a concrete beam in the embodiment 1 of the invention;
FIG. 4 is a schematic view of the embodiment 1 taken along line A-A of FIG. 1;
FIG. 5 is a schematic view of the embodiment 1 taken along line B-B of FIG. 1;
FIG. 6 is a schematic view of a rectangular end plate of a prefabricated steel-encased concrete column and concrete beam node in embodiment 1 of the present invention;
FIG. 7 is a schematic view of a prefabricated steel-encased concrete column and concrete beam joint in embodiment 2 of the present invention;
FIG. 8 is a schematic view of the embodiment 2 of the present invention from the direction of a-a in FIG. 7;
FIG. 9 is a schematic view of embodiment 2 of the present invention from the b-b direction in FIG. 7;
FIG. 10 is a schematic view of a T-shaped end plate of a prefabricated steel-encased concrete column and concrete beam joint according to embodiment 2 of the invention;
FIG. 11 is a schematic view of a prefabricated steel-encased concrete column and concrete beam joint in accordance with embodiment 3 of the present invention;
FIG. 12 is a top view of a prefabricated steel-encased concrete column and concrete beam joint in accordance with embodiment 3 of the present invention;
FIG. 13 is a schematic view of a prefabricated steel-encased concrete column and a concrete beam of embodiment 3 of the present invention;
FIG. 14 is a schematic view taken along line C-C of FIG. 11 in accordance with embodiment 3 of the present invention;
FIG. 15 is a schematic view of the embodiment 3 of the present invention along the line D-D of FIG. 11;
FIG. 16 is a schematic view of a prefabricated steel-encased concrete column and concrete beam joint according to embodiment 4 of the present invention;
FIG. 17 is a schematic view of the embodiment 4 of the present invention in the direction of c-c in FIG. 16;
FIG. 18 is a schematic view of FIG. 16 taken along line d-d in accordance with embodiment 4 of the present invention;
FIG. 19 is a schematic view of a prefabricated steel-encased concrete column and concrete beam joint in accordance with embodiment 5 of the present invention;
FIG. 20 is a top view of a prefabricated steel-encased concrete column and concrete beam joint in accordance with embodiment 5 of the present invention;
FIG. 21 is a schematic view of a prefabricated steel-encased concrete column and a concrete beam of embodiment 5 of the present invention;
FIG. 22 is a schematic view from E to E in FIG. 19 according to example 5 of the present invention;
fig. 23 is a schematic view of a connection steel plate with bolt holes of a post-cast strip of a precast encased concrete beam pre-embedded in a column according to embodiment 5 of the present invention;
FIG. 24 is a schematic view of a connecting steel plate with bolt holes of a post-cast strip of a precast encased concrete beam according to example 5 of the present invention;
FIG. 25 is a schematic view of a prefabricated steel-encased concrete column and concrete beam joint according to embodiment 6 of the present invention;
FIG. 26 is a schematic view of example 6 of the present invention taken along line e-e in FIG. 25;
fig. 27 is a schematic view of a prefabricated steel-encased concrete column and concrete beam joint according to embodiment 7 of the present invention;
FIG. 28 is a top view of a prefabricated steel encased concrete column and concrete beam joint of example 7 of the present invention;
fig. 29 is a schematic view of a prefabricated steel-encased concrete column and a concrete beam of embodiment 7 of the present invention;
FIG. 30 is a view showing the direction F-F of FIG. 27 in accordance with embodiment 7 of the present invention;
fig. 31 is a schematic view of a circumferential steel plate sleeve of a prefabricated steel-encased concrete column and concrete beam node according to embodiment 7 of the present invention;
fig. 32 is a schematic view of a prefabricated steel-encased concrete column and concrete beam joint according to embodiment 8 of the present invention;
FIG. 33 is a schematic view of the embodiment 8 of the present invention in the direction f-f shown in FIG. 32;
fig. 34 is a schematic view of a node between a prefabricated steel-encased concrete column and a concrete beam in embodiment 9 of the present invention;
FIG. 35 is a top view of a prefabricated steel encased concrete column and concrete beam joint of example 9 of the present invention;
fig. 36 is a schematic view of a prefabricated steel-encased concrete column and a concrete beam according to embodiment 9 of the present invention;
FIG. 37 is a schematic view showing the direction G-G of FIG. 34 in accordance with embodiment 9 of the present invention;
fig. 38 is a schematic view of a prefabricated steel-encased concrete column and concrete beam joint in accordance with embodiment 10 of the present invention;
FIG. 39 is a schematic view showing the direction of g-g in FIG. 38 according to example 10 of the present invention;
1-prefabricating an externally-wrapped steel concrete column; 201-pre-cast steel concrete beam wrapped outside on the column; 202-precast reinforced concrete beams pre-embedded on the columns; 301-prefabricating an externally wrapped steel concrete beam; 302-prefabricating a reinforced concrete beam; 4-a steel skeleton; 401-stirrup; 402-longitudinal ribs; 5-anchoring reinforcing steel bars in the columns; 6-anchoring steel bars in the beam; 7-wrapping a steel bottom plate outside; 8-end plate I; 9-end plate II; 10-post-pouring the groove; 11-post-pouring concrete; 12-a high-strength bolt; 13-connecting steel plates with bolt holes; 14-a flange plate; 15-circumferential steel plate sleeve; and 16-wrapping angle steel.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples.
Example 1
As shown in fig. 1 to 6, the prefabricated steel-encased concrete column and concrete beam joint includes a prefabricated steel-encased concrete column 1, a prefabricated reinforced concrete beam 202 embedded in the column, and a prefabricated reinforced concrete beam 302; the prefabricated steel-encased concrete column 1 comprises an in-column steel skeleton 4, encased angle steel 16 and in-column anchoring steel bars 5, the encased angle steel 16 is uniformly distributed along the circumferential direction, the in-column steel skeleton 4 is arranged at the geometric center of a region surrounded by the encased angle steel 16, the inner surface of a support arm of the encased angle steel 16 is welded with the end part of a stirrup 401 of the in-column steel skeleton 4, the in-column anchoring steel bars 5 are arranged inside the in-column steel skeleton 4, hooks are arranged at two ends of the in-column anchoring steel bars 5, the horizontal part of the in-column anchoring steel bars 5 extends to the outside of the region formed by the encased angle steel 16 to form an overhanging part, the outside of the overhanging part is provided with the in-beam steel skeleton 4, the end part of the overhanging part and the longitudinal bars 402 of the in-beam steel skeleton 4 are both welded with an end plate I8, high-strength bolts 12 are arranged in bolt holes of the end plate I8, and the in, Nuts of the inner beam steel skeleton 4 and the high-strength bolts 12 are packaged in concrete, wherein the inner beam steel skeleton 4, the overhanging part, the high-strength bolts 12, the end plate I8 and the concrete form a prefabricated reinforced concrete beam 202 which is pre-embedded on the column; the prefabricated reinforced concrete beam 302 comprises an in-beam steel skeleton 4, in-beam anchoring steel bars 6 and an end plate II 9, wherein the in-beam anchoring steel bars 6 are arranged in the in-beam steel skeleton 4, the end parts of the in-beam anchoring steel bars 6 and the end parts of longitudinal bars 402 of the in-beam steel skeleton 4 are welded on the end plate II 9, the in-beam steel skeleton 4 and the in-beam anchoring steel bars 6 are packaged in concrete, and a post-pouring groove 10 is reserved at a position close to the end plate II 9; aligning the end plate II 9 of the precast reinforced concrete beam 302 with the end plate I8 of the precast reinforced concrete beam 202 pre-embedded on the column, enabling the high-strength bolt 12 to penetrate through a reserved bolt hole of the end plate II 9 and be fastened through a nut, filling the post-cast concrete 11 in the post-cast groove 10, and packaging the high-strength bolt 12 and the longitudinal bar 402 of the in-beam steel framework 4 on the precast reinforced concrete beam 302 in the post-cast concrete 11.
The sections of the precast reinforced concrete beam 202 and the precast reinforced concrete beam 302 pre-embedded on the column are both rectangular; and the end plate I8 and the end plate II 9 are rectangular end plates.
The construction process of the prefabricated steel-encased concrete column and concrete beam joint comprises the following steps:
manufacturing a member consisting of a prefabricated externally-coated steel concrete column 1 and a prefabricated reinforced concrete beam 202 pre-embedded on the column, arranging in-column anchoring steel bars 5 according to design, binding an in-column steel framework 4, placing the in-column anchoring steel bars 5 at the inner side of the in-column steel framework 4, and welding stirrups 401 of the in-column steel framework 4 with the inner surface of a support arm of an externally-coated angle steel 16; simultaneously binding an in-beam steel skeleton 4 of the prefabricated reinforced concrete beam 202 pre-embedded on the column, and adopting a stirrup 401 at a connecting node of the in-beam steel skeleton 4 for encryption; sleeving the steel framework 4 in the beam outside the overhanging part of the anchoring steel bar 5 in the column; one end of a longitudinal rib 402 of a beam inner steel framework 4 is welded on the outer surface of the support arm of the externally-wrapped angle steel 16, and the other end of the longitudinal rib 402 of the beam inner steel framework 4 and the end part of the extending part of the column inner anchoring steel bar 5 are welded on the end plate I8; a screw rod of the high-strength bolt 12 penetrates through a bolt hole of the end plate I8, a formwork is erected, concrete is integrally poured, and component manufacturing is completed;
manufacturing a precast reinforced concrete beam 302, arranging in-beam anchoring steel bars 6 according to design, binding an in-beam steel skeleton 4, and performing encryption processing by using stirrups 401 at connecting nodes of the in-beam steel skeleton 4; welding the end plate II 9 on the longitudinal bar 402 of the steel framework 4 in the beam and the anchoring steel bar 6 in the beam; erecting a template, pouring concrete, reserving a post-pouring groove 10 at the 302 end of the precast reinforced concrete beam at the II 9 end plate, and finishing the manufacturing of the precast reinforced concrete beam 302;
butting the prefabricated steel-encased concrete column 1 with the prefabricated reinforced concrete beam 302 on site through the prefabricated reinforced concrete beam 202 pre-embedded on the column, enabling a stud of the high-strength bolt 12 on the prefabricated steel-encased concrete column 1 to penetrate through a bolt hole on the end plate II 9 of the prefabricated reinforced concrete beam 302, and screwing a nut; and pouring concrete into the reserved post-pouring groove 10 to finish construction.
Example 2
As shown in fig. 7 to 10, embodiment 2 is different from embodiment 1 in that the cross sections of the precast reinforced concrete beam 202 and the precast reinforced concrete beam 302 embedded in the column are both T-shaped, and the end plate i 8 and the end plate ii 9 are both T-shaped end plates.
Example 3
As shown in fig. 11 to 15, the difference between the embodiment 3 and the embodiment 1 is that the prefabricated reinforced concrete beam 202 embedded in the column and the prefabricated reinforced concrete beam 302 are respectively provided with an outer-coated steel bottom plate 7 on the lower surfaces thereof, the end of one outer-coated steel bottom plate 7 is welded to the end plate i 8, the end of the other outer-coated steel bottom plate 7 is welded to the end plate ii 9, and the upper surface of the outer-coated steel bottom plate 7 is welded to the stirrup 401 of the steel skeleton 4 in the beam.
The construction process of the prefabricated steel-encased concrete column and concrete beam joint comprises the following steps:
manufacturing a member consisting of a prefabricated externally-coated steel concrete column 1 and a prefabricated reinforced concrete beam 202 pre-embedded on the column, arranging in-column anchoring steel bars 5 according to design, binding an in-column steel framework 4, placing the in-column anchoring steel bars 5 at the inner side of the in-column steel framework 4, and welding stirrups 401 of the in-column steel framework 4 with the inner surface of a support arm of an externally-coated angle steel 16; simultaneously binding an in-beam steel skeleton 4 of the prefabricated reinforced concrete beam 202 pre-embedded on the column, and adopting a stirrup 401 at a connecting node of the in-beam steel skeleton 4 for encryption; sleeving the steel framework 4 in the beam outside the overhanging part of the anchoring steel bar 5 in the column; one end of a longitudinal rib 402 of a beam inner steel framework 4 is welded on the outer surface of an outer wrapping angle steel 16 support arm, the other end of the longitudinal rib 402 of the beam inner steel framework 4 and the end part of an extending part of an anchoring steel bar 5 in a column are welded on an end plate I8, an outer wrapping steel bottom plate 7 is welded at the bottom of a stirrup 401 of the beam inner steel framework 4, one end of the outer wrapping steel bottom plate 7 is welded with the end plate I8, and the other end of the outer wrapping steel bottom plate 7 is welded with the outer wrapping angle steel 16; a screw rod of the high-strength bolt 12 penetrates through a bolt hole of the end plate I8, a formwork is erected, concrete is integrally poured, and component manufacturing is completed;
manufacturing a precast reinforced concrete beam 302, arranging in-beam anchoring steel bars 6 according to design, binding an in-beam steel skeleton 4, and performing encryption processing by using stirrups 401 at connecting nodes of the in-beam steel skeleton 4; welding the end plate II 9 on the longitudinal bar 402 of the steel framework 4 in the beam and the anchoring steel bar 6 in the beam; an outer-coated steel bottom plate 7 is welded at the bottom of a stirrup 401 of the steel framework 4 in the beam, one end of the outer-coated steel bottom plate 7 is welded with an end plate I8, and the other end of the outer-coated steel bottom plate 7 is welded with an outer-coated angle steel 16; erecting a template, pouring concrete, reserving a post-pouring groove 10 at the 302 end of the precast reinforced concrete beam at the II 9 end plate, and finishing the manufacturing of the precast reinforced concrete beam 302;
butting the prefabricated steel-encased concrete column 1 with the prefabricated reinforced concrete beam 302 on site through the prefabricated reinforced concrete beam 202 pre-embedded on the column, enabling a stud of the high-strength bolt 12 on the prefabricated steel-encased concrete column 1 to penetrate through a bolt hole on the end plate II 9 of the prefabricated reinforced concrete beam 302, and screwing a nut; and pouring concrete into the reserved post-pouring groove 10 to finish construction.
Example 4
As shown in fig. 16 to 18, the difference between the embodiment 3 and the embodiment 2 is that the prefabricated reinforced concrete beam 202 embedded in the column and the prefabricated reinforced concrete beam 302 are respectively provided with an outer-coated steel bottom plate 7 on the lower surfaces thereof, and one end of the outer-coated steel bottom plate 7 is welded to the end plate i 8, the other end of the outer-coated steel bottom plate 7 is welded to the end plate ii 9, and the upper surface of the outer-coated steel bottom plate 7 is welded to the stirrup 401 of the steel skeleton 4 in the beam.
Example 5
As shown in fig. 19 to 24, the prefabricated steel-encased concrete column and concrete beam joint includes a prefabricated steel-encased concrete column 1, a prefabricated steel-encased concrete beam 201 pre-embedded on the column, and a prefabricated steel-encased concrete beam 301; the prefabricated externally-coated steel concrete column 1 comprises an in-column steel framework 4, externally-coated angle steel 16 and in-column anchoring steel bars 5, wherein the externally-coated angle steel 16 is uniformly distributed along the circumferential direction, the in-column steel framework 4 is arranged at the geometric center of a region enclosed by the externally-coated angle steel 16, the inner surface of a support arm of the externally-coated angle steel 16 is welded with the end part of a stirrup 401 of the in-column steel framework 4, the in-column anchoring steel bars 5 are arranged inside the in-column steel framework 4, the horizontal part of the in-column anchoring steel bars 5 extends to the outer side of the region formed by the externally-coated angle steel 16 to form an overhanging part, the outer side of the overhanging part is provided with an in-beam steel framework 4, an externally-coated steel bottom plate 7 is arranged below the in-beam steel framework 4, one end of the upper surface of the externally-coated steel bottom plate 7, which is far away from the externally-coated angle steel 16, and the, encapsulating the in-column steel framework 4, the outer-coated angle steel 16, the in-column anchoring steel 5 and the in-beam steel framework 4 in concrete, wherein the in-beam steel framework 4, the outer-coated steel bottom plate 7 and the concrete form a prefabricated outer-coated steel concrete beam 201 which is pre-embedded on the column, and a post-cast area is formed in an area which is surrounded by the two connecting steel plates 13 with the bolt holes; the prefabricated steel-encased concrete beam 301 comprises a beam inner steel framework 4, beam inner anchoring steel bars 6 and an encased steel bottom plate 7, wherein the beam inner steel framework 4 is internally provided with the beam inner anchoring steel bars 6, the bottom of stirrups 401 of the beam inner steel framework 4 is welded with the encased steel bottom plate 7, the top longitudinal bars 402 of the beam inner steel framework 4 and the lower surface of the end part of the encased steel bottom plate 7 are respectively welded with connecting steel plates 13 with bolt holes, the two connecting steel plates 13 with bolt holes are just arranged, the beam inner steel framework 4 and the beam inner anchoring steel bars 6 are encapsulated in concrete, the area enclosed by the two connecting steel plates 13 with bolt holes forms a post-casting area, the connecting steel plates 13 with bolt holes and the encased steel plates 7 of the prefabricated encased steel concrete beam 201 pre-embedded on the column and the connecting steel plates 13 with bolt holes and the encased steel plates 7 of the prefabricated encased steel concrete beam 301 are connected through high-strength bolts 12, and concrete is filled in the post-pouring area, and the sections of the prefabricated externally-wrapped steel concrete beam 201 and the prefabricated externally-wrapped steel concrete beam 301 which are pre-embedded on the column are rectangular.
The sections of the prefabricated externally-wrapped steel concrete beam 201 and the prefabricated externally-wrapped steel concrete beam 301 which are pre-embedded on the columns are T-shaped or rectangular.
The construction process of the prefabricated steel-encased concrete column and concrete beam joint comprises the following steps:
manufacturing a prefabricated externally-coated steel concrete column 1, forming a component by a prefabricated externally-coated steel concrete beam 201 pre-embedded on the column, arranging an in-column anchoring steel bar 5 according to design, binding an in-column steel framework 4, enabling the in-column anchoring steel bar 5 to be positioned on the inner side of the in-column steel framework 4, and welding the end part of a stirrup 401 of the in-column steel framework 4 with a support arm of an externally-coated angle steel 16; simultaneously binding an in-beam steel skeleton 4 of the prefabricated steel-encased concrete beam 201 pre-embedded on the column, and adopting stirrups 401 to perform encryption processing at the connection nodes of the in-beam steel skeleton 4; welding an outer-coated steel bottom plate 7 at the bottom of a stirrup 401 of the steel framework 4 in the beam, and welding a connecting steel plate 13 with a bolt hole at the position, close to a connecting node, of a top longitudinal rib 402 of the steel framework 4 in the beam and the upper surface of the outer-coated steel bottom plate 7; pouring concrete in the supporting template, and reserving a post-pouring area in the area part of the connecting steel plate 13 with the bolt hole to finish the manufacturing of the component;
manufacturing a prefabricated externally-wrapped steel concrete beam 301, binding a beam inner steel framework 4 according to design, arranging beam inner anchoring steel bars 6 on the inner side of the beam inner steel framework 4, and arranging the beam inner anchoring steel bars 6 at one end of a connecting node; welding an outer-coated steel bottom plate 7 at the bottom of a stirrup 401 of the steel framework 4 in the beam, and respectively welding a connecting steel plate 13 with a bolt hole at the end part of a longitudinal bar 402 at the top of the steel framework 4 in the beam and the lower surface of the outer-coated steel bottom plate 7; pouring concrete in the supporting template, and reserving a post-pouring area in the area part of the connecting steel plate 13 with the bolt hole to finish the manufacturing of the component;
butting a prefabricated steel-encased concrete column 1 with a prefabricated steel-encased concrete beam 301 through a prefabricated steel-encased concrete beam 201 pre-embedded on the column, butting an encased steel bottom plate 7 on the prefabricated steel-encased concrete beam 201 pre-embedded on the column with a connecting steel plate 13 with bolt holes on the prefabricated steel-encased concrete beam 301, butting the connecting steel plate 13 with bolt holes on the prefabricated steel-encased concrete beam 201 pre-embedded on the column with the encased steel bottom plate 7 on the prefabricated steel-encased concrete beam 301, butting the connecting steel plate 13 with bolt holes on the prefabricated steel-encased concrete beam 201 pre-embedded on the column with the connecting steel plate 13 with bolt holes on the prefabricated steel-encased concrete beam 301, and ensuring that the upper and lower bolt holes are aligned; the high-strength bolt 12 penetrates through the connecting steel plate 13 with the bolt hole and the steel-clad bottom plate 7, and the bolt is screwed up to complete bolting; and (5) post-pouring the post-cast concrete 11 at the joint, and finishing construction.
Example 6
As shown in fig. 25 and 26, the embodiment 6 is different from the embodiment 1 in that the cross-sections of the precast encased steel concrete beam 201 and the precast encased steel concrete beam 301 embedded in the column are T-shaped.
Example 7
As shown in fig. 27 to 31, the prefabricated steel-encased concrete column and concrete beam node includes a prefabricated steel-encased concrete column 1 and a prefabricated reinforced concrete beam 302; the prefabricated externally-coated steel concrete column 1 comprises an in-column steel skeleton 4, externally-coated angle steels 16 and in-column anchoring steel bars 5, the externally-coated angle steels 16 are uniformly distributed along the circumferential direction, and the steel framework 4 in the column is arranged at the geometric center of the area enclosed by the externally-wrapped angle iron 16, and the steel framework 4 in the column is internally provided with the steel bar 5 for anchoring in the column, and the end of the vertical part of the anchor steel bar 5 in the column is provided with a hook, the outer side of the outer wrapping angle steel 16 is sleeved with a circumferential steel plate sleeve 15, and the annular steel plate sleeve 15 is arranged at the connecting node of the prefabricated externally-coated steel concrete column 1, the tail end of the horizontal part of the anchoring steel bar 5 in the column is welded with the inner wall of the annular steel plate sleeve 15, the high-strength bolt 12 is arranged on the wall of the connecting end cylinder of the annular steel plate sleeve 15, and the in-column steel framework 4, the externally-wrapped angle steel 16, the in-column anchoring steel bar 5 and the nut of the high-strength bolt 12 are packaged in concrete; the prefabricated reinforced concrete beam 302 comprises an in-beam steel skeleton 4, in-beam anchoring steel bars 6 and a flange 14, wherein the in-beam anchoring steel bars 6 are arranged on the inner side of the in-beam steel skeleton 4, the end parts of longitudinal steel bars 402 of the in-beam steel skeleton 4 and the end parts of the in-beam anchoring steel bars 6 are welded on the flange 14, and the in-beam steel skeleton 4 and the in-beam anchoring steel bars 6 are packaged in concrete; the prefabricated steel-encased concrete column 1 and the prefabricated reinforced concrete beam 302 are connected into a whole through the high-strength bolt 12 and the flange plate 14, and the cross section of the prefabricated reinforced concrete beam 302 is rectangular.
The construction process of the prefabricated steel-encased concrete column and concrete beam joint comprises the following steps:
manufacturing a prefabricated steel-encased concrete column 1, arranging an in-column anchoring steel bar 5 according to design requirements, binding an in-column steel framework 4, enabling the in-column anchoring steel bar 5 to be located on the inner side of the in-column steel framework 4, and welding the end part of a stirrup 401 of the in-column steel framework 4 on the inner surface of a support arm of the externally-wrapped angle steel 16; sleeving a circumferential steel plate sleeve 15 at a column connecting node, and welding the tail end of the horizontal section of the anchoring steel bar 5 in the column at the inner surface of the circumferential steel plate sleeve 15; arranging the high-strength bolt 12 in a bolt hole of a circumferential steel plate, and enabling a stud part of the high-strength bolt 12 to extend out of a circumferential steel plate sleeve 15; integrally pouring concrete of the column to finish the manufacture of the prefabricated steel-encased concrete column 1;
manufacturing a precast reinforced concrete beam 302, binding a beam inner steel framework 4 according to design requirements, arranging beam inner anchoring steel bars 6 in the beam inner steel framework 4, and welding a flange 14 at the end parts of longitudinal bars 402 of the beam inner steel framework 4 and the beam inner anchoring steel bars 6; integrally pouring concrete to finish the manufacture of the prefabricated reinforced concrete beam 302;
the prefabricated steel-encased concrete column 1 is butted with the prefabricated reinforced concrete beam 302 on site; the stud of the high-strength bolt 12 of the prefabricated steel-encased concrete column 1 penetrates through the bolt hole of the flange plate 14 of the prefabricated reinforced concrete beam 302, and the nut is screwed to complete bolting; and finishing construction.
Example 8
As shown in fig. 32 and 33, embodiment 8 is different from embodiment 7 in that the precast reinforced concrete beam 302 has a T-shaped section.
Example 9
As shown in fig. 34 to 37, the embodiment 9 is different from the embodiment 7 in that an outer clad steel base plate 7 is provided on the lower surface of the precast reinforced concrete beam 302, the end of the outer clad steel base plate 7 is welded to the flange 14, and the upper surface of the outer clad steel base plate 7 is welded to the stirrup 401 of the beam inner steel framework 4.
The construction process of the prefabricated steel-encased concrete column and concrete beam joint comprises the following steps:
manufacturing a prefabricated steel-encased concrete column 1, arranging an in-column anchoring steel bar 5 according to design requirements, binding an in-column steel framework 4, enabling the in-column anchoring steel bar 5 to be located on the inner side of the in-column steel framework 4, and welding the end part of a stirrup 401 of the in-column steel framework 4 on the inner surface of a support arm of the externally-wrapped angle steel 16; sleeving a circumferential steel plate sleeve 15 at a column connecting node, and welding the tail end of the horizontal section of the anchoring steel bar 5 in the column at the inner surface of the circumferential steel plate sleeve 15; arranging the high-strength bolt 12 in a bolt hole of a circumferential steel plate, and enabling a stud part of the high-strength bolt 12 to extend out of a circumferential steel plate sleeve 15; integrally pouring concrete of the column to finish the manufacture of the prefabricated steel-encased concrete column 1;
manufacturing a precast reinforced concrete beam 302, binding a beam inner steel framework 4 according to design requirements, arranging beam inner anchoring steel bars 6 in the beam inner steel framework 4, welding a flange plate 14 at the end parts of longitudinal ribs 402 of the beam inner steel framework 4 and the beam inner anchoring steel bars 6, welding an outer steel-clad bottom plate 7 at the bottom part of stirrups 401 of the beam inner steel framework 4, and meanwhile welding the end parts of the outer steel-clad steel plates on the flange plate 14; integrally pouring concrete to finish the manufacture of the prefabricated reinforced concrete beam 302;
the prefabricated steel-encased concrete column 1 is butted with the prefabricated reinforced concrete beam 302 on site; the stud of the high-strength bolt 12 of the prefabricated steel-encased concrete column 1 penetrates through the bolt hole of the flange plate 14 of the prefabricated reinforced concrete beam 302, and the nut is screwed to complete bolting; and finishing construction.
Example 10
As shown in fig. 38 and 39, the embodiment 10 is different from the embodiment 8 in that an outer clad steel base plate 7 is provided on the lower surface of the precast reinforced concrete beam 302, the end of the outer clad steel base plate 7 is welded to the flange 14, and the upper surface of the outer clad steel base plate 7 is welded to the stirrup 401 of the beam inner steel frame 4.
Claims (10)
1. The prefabricated steel-encased concrete column and concrete beam joint is characterized by comprising a prefabricated steel-encased concrete column, a prefabricated reinforced concrete beam and a prefabricated reinforced concrete beam, wherein the prefabricated steel-encased concrete column is embedded in the column; the prefabricated steel-encased concrete column comprises an in-column steel skeleton, encased angle steel and in-column anchoring steel bars, the encased angle steel is uniformly distributed along the circumferential direction, the in-column steel skeleton is arranged at the geometric center of an area surrounded by the encased angle steel, the inner surface of a support arm of the encased angle steel is welded with the end portion of a stirrup of the in-column steel skeleton, the in-column anchoring steel bars are arranged inside the in-column steel skeleton, hooks are arranged at two ends of the in-column anchoring steel bars, the horizontal portion of the in-column anchoring steel bars extends to the outside of the area formed by the encased angle steel to form an overhanging portion, the outside of the overhanging portion is provided with the in-beam steel skeleton, the end portion of the overhanging portion and the longitudinal bars of the in-beam steel skeleton are welded with an end plate I, high-strength bolts are arranged in bolt holes of the end plate I, and nuts of the in-column steel skeleton, the encased angle steel, the in-column anchoring, The overhanging part, the high-strength bolt, the end plate I and the concrete form a prefabricated reinforced concrete beam pre-embedded on the column; the precast reinforced concrete beam comprises an in-beam steel skeleton, in-beam anchoring steel bars and an end plate II, wherein the in-beam anchoring steel bars are arranged in the in-beam steel skeleton, the end parts of the in-beam anchoring steel bars and the end parts of the in-beam steel skeleton longitudinal bars are welded on the end plate II, the in-beam steel skeleton and the in-beam anchoring steel bars are packaged in concrete, and a post-pouring groove is reserved at a position close to the end plate II; aligning an end plate II of the prefabricated reinforced concrete beam with an end plate I of the prefabricated reinforced concrete beam pre-embedded on the column, enabling a high-strength bolt to penetrate through a reserved bolt hole of the end plate II and to be fastened through a nut, filling post-cast concrete in a post-cast groove, and packaging the high-strength bolt and longitudinal bars of an inner beam steel framework on the prefabricated reinforced concrete beam in the post-cast concrete; the sections of the precast reinforced concrete beam embedded on the column and the precast reinforced concrete beam are T-shaped or rectangular, and when the sections are T-shaped sections, the end plate I and the end plate II are both T-shaped end plates; when the cross section is rectangular, the end plate I and the end plate II are both rectangular end plates.
2. The prefabricated steel-encased concrete column and concrete beam joint of claim 1, wherein: outer steel-clad bottom plates are respectively arranged on the lower surfaces of the precast reinforced concrete beams pre-embedded on the columns and the lower surfaces of the precast reinforced concrete beams, the end part of one outer steel-clad bottom plate is welded with the end plate I, and the end part of the other outer steel-clad bottom plate is welded with the end plate II; the upper surface of the outer steel-clad bottom plate is welded with stirrups of a steel framework in the beam.
3. The construction process of a prefabricated steel-encased concrete column and concrete beam joint according to claim 1, comprising the steps of:
step 1, component manufacturing:
manufacturing a member consisting of a prefabricated externally-coated steel concrete column and a prefabricated reinforced concrete beam pre-embedded on the column, arranging in-column anchoring steel bars according to design, binding the in-column steel framework, placing the in-column anchoring steel bars on the inner side of the in-column steel framework, and welding stirrups of the in-column steel framework with the inner surface of a support arm of externally-coated angle steel; simultaneously binding an in-beam steel skeleton of the precast reinforced concrete beam pre-embedded on the column, and adopting stirrup encryption processing at a connection node of the in-beam steel skeleton; sleeving a steel framework in the beam outside the overhanging part of the anchoring steel bar in the column; welding one end of a longitudinal rib of the steel skeleton in the beam on the outer surface of the outer-coated angle steel support arm, and welding the other end of the longitudinal rib of the steel skeleton in the beam and the end part of the outward extending part of the anchoring steel bar in the column on the end plate I; penetrating a screw rod of the high-strength bolt through a bolt hole of the end plate I, supporting a template, and integrally pouring concrete to complete the manufacturing of the component;
manufacturing a precast reinforced concrete beam, arranging anchoring steel bars in the beam according to design, binding a steel skeleton in the beam, and performing stirrup encryption processing at a connecting node of the steel skeleton in the beam; welding the end plate II on the longitudinal bars of the steel framework in the beam and the anchoring steel bars in the beam; erecting a template, pouring concrete, and prefabricating a post-pouring groove at the end of the reinforced concrete beam at the end plate II to finish the manufacturing of the prefabricated reinforced concrete beam;
step 2, component installation:
butting the prefabricated steel-encased concrete column with the prefabricated reinforced concrete beam through the prefabricated reinforced concrete beam pre-embedded on the column on site, enabling a stud of a high-strength bolt on the prefabricated steel-encased concrete column to penetrate through a bolt hole on the prefabricated reinforced concrete beam end plate II, and screwing a nut; and pouring concrete into the reserved post-pouring groove, and finishing construction.
4. The construction process of the prefabricated steel-encased concrete column and concrete beam joint according to claim 3, wherein: and step 1, welding outer-coated steel bottom plates at the bottoms of the in-beam anchoring steel bars of the precast reinforced concrete beam pre-embedded on the column and the stirrups of the in-beam anchoring brain bars of the precast reinforced concrete beam.
5. The prefabricated steel-encased concrete column and concrete beam joint is characterized by comprising a prefabricated steel-encased concrete column, a prefabricated steel-encased concrete beam and a prefabricated steel-encased concrete beam, wherein the prefabricated steel-encased concrete beam and the prefabricated steel-encased concrete beam are embedded in the column; the prefabricated steel-encased concrete column comprises an in-column steel framework, encased angle steels and in-column anchoring steel bars, wherein the encased angle steels are uniformly distributed along the circumferential direction, the in-column steel framework is arranged at the geometric center of a region enclosed by the encased angle steels, the inner surfaces of support arms of the encased angle steels are welded with the ends of stirrups of the in-column steel framework, in-column anchoring steel bars are arranged inside the in-column steel framework, the horizontal parts of the in-column anchoring steel bars extend to the outer side of the region formed by the encased angle steels to form an overhanging part, the outer side of the overhanging part is provided with a beam inner steel framework, an encased steel bottom plate is arranged below the beam inner steel framework, one end of the encased steel bottom plate far away from the encased angle steels and the longitudinal bar ends of the beam inner steel framework are respectively welded with connecting steel plates with bolt holes, and the two connecting steel plates with bolt holes are arranged right opposite to each other, and the in-column inner steel framework, the, the steel skeleton, the overhanging part, the steel bottom plate and the concrete in the beam form a prefabricated steel concrete beam wrapped outside and pre-embedded on the column, and the area surrounded by the two connecting steel plates with bolt holes forms a post-pouring area; the prefabricated steel-encased concrete beam comprises a beam inner steel framework, a beam inner anchoring steel bar and an outer steel-encased bottom plate, wherein the beam inner anchoring steel bar is arranged on the inner side of the beam inner steel framework, the outer steel-encased bottom plate is welded at the bottom of a beam inner steel framework stirrup, connecting steel plates with bolt holes are respectively welded on the lower surfaces of the top longitudinal bar end part of the beam inner steel framework and the end part of the outer steel-encased bottom plate, the two connecting steel plates with bolt holes are arranged oppositely, the beam inner steel framework and the beam inner anchoring steel bar are packaged in concrete, a post-cast area is formed by the area surrounded by the two connecting steel plates with bolt holes, the connecting steel plates with bolt holes of the prefabricated steel-encased concrete beam pre-embedded on a column, the outer steel plate and the connecting steel plates with bolt holes of the prefabricated steel-encased concrete beam are connected through high-strength bolts, and concrete is filled in; the sections of the prefabricated externally-wrapped steel concrete beam pre-embedded on the column and the prefabricated externally-wrapped steel concrete beam are T-shaped or rectangular.
6. The construction process of a prefabricated steel-encased concrete column and concrete beam joint according to claim 5, characterized by comprising the steps of:
step 1, component manufacturing:
manufacturing a prefabricated steel-encased concrete column, a prefabricated steel-encased concrete beam component embedded on the column, arranging in-column anchoring steel bars according to design, binding an in-column steel skeleton and enabling the in-column anchoring steel bars to be located on the inner side of the in-column steel skeleton, and welding the end parts of stirrups of the in-column steel skeleton and support arms of the encased angle steels; simultaneously binding an inner beam steel framework of the prefabricated externally-wrapped steel concrete beam pre-embedded on the column, and adopting stirrup encryption processing at a connecting node of the inner beam steel framework; welding an outer steel-clad bottom plate at the bottom of the stirrup of the steel framework in the beam, and welding a connecting steel plate with a bolt hole at the position, close to the connecting node, of the longitudinal rib at the top of the steel framework in the beam and the upper surface of the outer steel-clad bottom plate; pouring concrete in the supporting template, and reserving a post-pouring area in the connecting steel plate area with the bolt hole to finish the manufacturing of the component;
manufacturing a prefabricated externally-wrapped steel concrete beam, binding a beam inner steel framework according to the design, arranging beam inner anchoring steel bars on the inner side of the beam inner steel framework, and arranging the beam inner anchoring steel bars at one end of a connecting node; welding an outer steel-clad bottom plate at the bottom of a stirrup of a steel framework in the beam, and respectively welding connecting steel plates with bolt holes at the end part of a longitudinal bar at the top of the steel framework in the beam and the lower surface of the outer steel-clad bottom plate; pouring concrete in the supporting template, and reserving a post-pouring area in the connecting steel plate area with the bolt hole to finish the manufacturing of the component;
step 2, component installation:
butting a prefabricated steel-encased concrete column with the prefabricated steel-encased concrete beam through a prefabricated steel-encased concrete beam pre-embedded on the column, butting an encased steel base plate on the prefabricated steel-encased concrete beam pre-embedded on the column with a connecting steel plate with bolt holes on the prefabricated steel-encased concrete beam, butting the connecting steel plate with the bolt holes on the prefabricated steel-encased concrete beam pre-embedded on the column with the encased steel base plate on the prefabricated steel-encased concrete beam, butting the connecting steel plate with the bolt holes on the prefabricated steel-encased concrete beam pre-embedded on the column with the connecting steel plate with the bolt holes on the prefabricated steel-encased concrete beam, and ensuring that the upper bolt hole and the lower bolt hole are aligned; the high-strength bolt penetrates through the connecting steel plate with the bolt hole and the steel-clad bottom plate, and the bolt is screwed up to complete bolting; and (5) pouring post-cast concrete at the joint of the connecting node, and finishing construction.
7. The prefabricated steel-encased concrete column and concrete beam node is characterized by comprising a prefabricated steel-encased concrete column and a prefabricated reinforced concrete beam; the prefabricated steel-encased concrete column comprises an in-column steel framework, encased angle steels and in-column anchoring steel bars, wherein the encased angle steels are uniformly distributed along the circumferential direction, the in-column steel framework is arranged at the geometric center of a region enclosed by the encased angle steels, the in-column anchoring steel bars are arranged in the in-column steel framework, bent hooks are arranged at the tail ends of the vertical parts of the in-column anchoring steel bars, annular steel plate sleeves are sleeved outside the encased angle steels and are arranged at connecting nodes of the prefabricated encased steel-encased concrete column, the tail ends of the horizontal parts of the in-column anchoring steel bars are welded with the inner walls of the annular steel plate sleeves, high-strength bolts are arranged on the connecting end cylinder walls of the annular steel plate sleeves, and nuts of the in-column steel framework, the encased angle steels, the in-column anchoring steel bars and the high; the prefabricated reinforced concrete beam comprises an in-beam steel skeleton, in-beam anchoring steel bars and a flange plate, wherein the in-beam anchoring steel bars are arranged on the inner side of the in-beam steel skeleton, the end parts of the in-beam steel skeleton longitudinal bars and the end parts of the in-beam anchoring steel bars are welded on the flange plate, and the in-beam steel skeleton and the in-beam anchoring steel bars are packaged in concrete; the prefabricated externally-coated steel concrete column and the prefabricated reinforced concrete beam are connected into a whole through a high-strength bolt and a flange plate; the section of the prefabricated reinforced concrete beam is T-shaped or rectangular.
8. The prefabricated steel encased concrete column and concrete beam joint of claim 7, wherein: the lower surface of the precast reinforced concrete beam is provided with an outer steel-clad bottom plate, the end part of the outer steel-clad bottom plate is welded with the flange plate, and the upper surface of the outer steel-clad bottom plate is welded with a stirrup of a steel framework in the beam.
9. The process of constructing a prefabricated steel encased concrete column and concrete beam joint as claimed in claim 7, comprising the steps of:
step 1, component manufacturing:
manufacturing a prefabricated steel-encased concrete column, arranging in-column anchoring steel bars according to design requirements, binding an in-column steel skeleton, enabling the in-column anchoring steel bars to be located on the inner side of the in-column steel skeleton, and welding the end parts of stirrups of the in-column steel skeleton on the inner surface of a support arm of the encased angle steel; sleeving a circumferential steel plate sleeve at a column connecting node, and welding the tail end of a horizontal section of an anchoring steel bar in the column at the inner surface of the circumferential steel plate sleeve; arranging a high-strength bolt in a bolt hole of the annular steel plate, and enabling a stud part of the high-strength bolt to extend out of an annular steel plate sleeve; integrally pouring concrete of the column to finish the manufacture of the prefabricated steel-encased concrete column;
manufacturing a precast reinforced concrete beam, binding a steel framework in the beam according to design requirements, arranging an anchoring steel bar in the beam in the steel framework in the beam, and welding a flange plate at the end parts of the longitudinal bar of the steel framework in the beam and the anchoring steel bar in the beam; integrally pouring concrete to finish the manufacture of the prefabricated reinforced concrete beam;
step 2, component installation:
the prefabricated externally-coated steel concrete column is in butt joint with the prefabricated reinforced concrete beam on site; enabling a stud of a high-strength bolt of the prefabricated steel-encased concrete column to penetrate through a bolt hole of a flange plate of the prefabricated reinforced concrete beam, and screwing a nut to complete bolting; and finishing construction.
10. The construction process of a prefabricated steel-encased concrete column and concrete beam joint according to claim 9, wherein: and step 1, welding an outer steel-clad bottom plate at the bottom of a stirrup of the steel framework in the beam, and welding the end part of the outer steel-clad bottom plate with a flange plate.
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