CN112282062A - Slow-bonding prestress core-penetrating bolt-end plate connecting reinforced concrete column-steel beam connecting node - Google Patents
Slow-bonding prestress core-penetrating bolt-end plate connecting reinforced concrete column-steel beam connecting node Download PDFInfo
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- CN112282062A CN112282062A CN202011248623.2A CN202011248623A CN112282062A CN 112282062 A CN112282062 A CN 112282062A CN 202011248623 A CN202011248623 A CN 202011248623A CN 112282062 A CN112282062 A CN 112282062A
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 90
- 239000010959 steel Substances 0.000 title claims abstract description 90
- 239000011150 reinforced concrete Substances 0.000 title claims abstract description 51
- 238000003466 welding Methods 0.000 claims description 30
- 239000004567 concrete Substances 0.000 claims description 27
- 230000000149 penetrating effect Effects 0.000 claims description 15
- 210000003205 muscle Anatomy 0.000 claims 2
- 238000010276 construction Methods 0.000 abstract description 16
- 238000004519 manufacturing process Methods 0.000 abstract description 10
- 238000009417 prefabrication Methods 0.000 abstract description 4
- 230000005540 biological transmission Effects 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 7
- 230000008901 benefit Effects 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- 238000010008 shearing Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 5
- 238000005260 corrosion Methods 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 238000004458 analytical method Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 230000003313 weakening effect Effects 0.000 description 2
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002457 bidirectional effect Effects 0.000 description 1
- 238000005536 corrosion prevention Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000011513 prestressed concrete Substances 0.000 description 1
- 239000003351 stiffener Substances 0.000 description 1
- 230000009466 transformation Effects 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
- E04B1/30—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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- 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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- Joining Of Building Structures In Genera (AREA)
Abstract
The invention discloses a slow-bonding prestress core-penetrating bolt-end plate connecting reinforced concrete column-steel beam connecting node, and belongs to the technical field of building structures. The invention comprises a reinforced concrete column, a steel beam, a slow-bonding prestress core-penetrating bolt, an overhanging end plate, a stiffening rib, a stressed longitudinal rib in the column and a cylindrical steel plate in a node core area, wherein the whole processing and manufacturing process can be completed in a prefabrication factory, a hole is reserved at the overhanging beam end of the steel beam in the node core area, and only dry construction work such as component hoisting, bolt connection and the like is needed on site, so that wet operation is avoided, the node structure is simple, the processing is convenient, the force transmission is clear, and the stress is reasonable.
Description
Technical Field
The invention relates to a connection node of a reinforced concrete column and a steel beam, in particular to a column through type bidirectional connection node which is connected by adopting a slow-bonding prestress core penetrating bolt and an end plate. The node belongs to the technical field of building structures, and can be widely applied to connection of an H-shaped steel beam and a reinforced concrete column in a multi-story and high-rise assembled steel-concrete mixed structure.
Background
The Reinforced Concrete Column-Steel Beam (RCS) hybrid structure fully utilizes and exerts the advantages of two different materials, namely Steel and Reinforced Concrete, and is a structural form with low cost and high efficiency. In the RCS frame structure, a beam-column node is a key part of the system for forming lateral force resistance, and the working state of the beam-column node is directly related to the working performance of the frame structure. The design concept and the construction mode of the fabricated building can solve the defects presented in the construction of the traditional construction engineering project, and are the necessary way for transformation and upgrading of the building industry. The RCS node is getting more and more attention and favored by the assembly building industry due to its excellent stress characteristics and good economic performance.
At the present stage, the RCS hybrid nodes are divided into two types according to the difference of the member through form: 1) the Beam Through type (Through Beam) has the advantages of good integrity, capability of providing larger bearing capacity and rigidity and avoiding a large amount of welding operation; the shortcoming is that the weakening of the section of the core area column is caused, the arrangement difficulty of reinforcing steel bars, especially stirrups, is increased, and the pouring quality of the core area concrete is further influenced. 2) The Column Through type (Through Column), namely, the core area of the node ensures that the concrete Column is completely communicated, the steel beam does not extend into the core area, and the core area is connected to the embedded connecting piece at the Column end Through a high-strength bolt or a welding line. The node form has the greatest advantages of being beneficial to pouring and manufacturing of concrete in a core area, simple in structure and high in construction speed; the defects that the stress of a node core area is complex, and the stress concentration is easy to occur at the beam-column connecting part. In addition, the traditional welding connection of the embedded parts is difficult to meet the stress requirement of the end part of the steel beam of the large-span structure; on one hand, the high-strength bolt connection needs to reserve holes to weaken the shearing resistance of concrete in a node core area, on the other hand, the shearing force of a beam end is mainly transferred by bolts, and the high-strength bolt connection is easy to cause material corrosion and strength damage after long-time service, and has potential safety hazards of durability.
Disclosure of Invention
In order to solve the problems, the invention adopts the following technical scheme: a slow-bonding prestressed core-penetrating bolt-end plate connecting reinforced concrete column-steel beam connecting node comprises a reinforced concrete column, a steel beam, a slow-bonding prestressed core-penetrating bolt, an outward-extending end plate, a stiffening rib, a column middle stress longitudinal rib and a node core area cylindrical surface steel plate, a circle of cylindrical steel plates of the node core area are arranged in the core area of the reinforced concrete column along the height range of the steel beam on the outer surface of the concrete column, the reinforced concrete column is internally provided with a vertical stressed longitudinal rib in the column, the external part of the cylindrical steel plate of the core area is welded with an overhanging end plate, overhanging end plate is connected through welding and girder steel and stiffening rib in advance and is formed wholly, overhanging end plate, node core region cylinder steel sheet are mutually perpendicular's two sets of arranging, and are two sets of it wears to be equipped with slowly to bond prestressing force and wears to wear to be equipped with on the overhanging end plate, the node core region cylinder steel sheet.
As a further explanation, holes corresponding to the slow-bonding prestressed core-penetrating bolts are formed in the overhanging end plates, the cylindrical steel plates in the node core area and the reinforced concrete columns.
As a further illustration, the overhanging end plate is welded to the steel beam by a butt weld and the overhanging end plate is welded to the stiffener by a double fillet weld.
The invention also provides a slow-bonding prestress core-penetrating bolt-end plate connecting reinforced concrete column-steel beam connecting node which comprises a reinforced concrete column, a steel beam, a slow-bonding prestress core-penetrating bolt, embedded end plates, stiffening ribs, longitudinal ribs stressed in the column and hooping in a node core area, wherein a circle of hooping in the node core area which is equidistantly arranged is arranged in the core area of the reinforced concrete column along the height range of the steel beam on the outer surface of the concrete column, the vertical longitudinal ribs stressed in the column are arranged in the reinforced concrete column, the embedded end plates are arranged outside the hooping in the node core area, the embedded end plates are connected with the steel beam and the stiffening ribs into a whole in advance through welding, the embedded end plates are arranged in two groups which are vertical to each other, and the slow-bonding prestress core-penetrating bolts correspondingly penetrate through the two groups of embedded end.
As a further explanation, holes corresponding to the slow-adhesion prestress core penetrating bolts are formed in the embedded end plates and the reinforced concrete columns, and stirrups in the core area of the node are arranged in a staggered mode with the holes.
As a further description, the embedded end plates are welded to the steel beam through butt welds, and the extended end plates are welded to the stiffening ribs through double-sided fillet welds.
Compared with the prior art, the invention has the following advantages:
1) performance weakening caused by opening of concrete in the core area can be realized, and the bearing capacity and the overall safety of the structure are improved;
2) the process flow of factory processing and manufacturing can be simplified, and the problem of concrete pouring compactness in the core area of the node is avoided;
3) the intelligent numerical control tensioning technology can be combined, the prestress tensioning precision is obviously improved, and the comprehensive material cost and the engineering cost can be further reduced;
4) the prestressed core-through bolt is firmly bonded with the concrete, and the phenomena of incompact grouting in a post-tensioning method and corrosion prevention and fatigue problems of the prestressed bolt and an anchorage device in unbonded prestressed concrete can be avoided;
5) the core area of the node does not need to reserve a pore channel, so that materials and equipment required by pore-forming grouting are saved, and the construction process is further simplified;
6) the nodes completely realize prefabrication and component production, the cast-in-place of concrete is eliminated, the construction efficiency is greatly improved, and the construction period is short.
Drawings
FIG. 1 is an isometric view of the present invention;
FIG. 2 is a plan view of an example of a node core area constructed by using a cylindrical steel plate and eliminating stirrups;
FIG. 3 is a cross-sectional view A-A of the embodiment of FIG. 2 of the present invention; (ii) a
FIG. 4 is a cross-sectional view B-B of the embodiment of FIG. 2 of the present invention;
FIG. 5 is a cross-sectional view taken along line C-C of the embodiment of FIG. 2 of the present invention;
FIG. 6 is a cross-sectional view taken along line D-D of the embodiment of FIG. 2 of the present invention;
FIG. 7 is a plan view of an example of a node core area constructed by using pre-embedded end plates and stirrups;
FIG. 8 is a cross-sectional view taken along line E-E of the embodiment of FIG. 7 of the present invention;
FIG. 9 is a cross-sectional view F-F of the embodiment of FIG. 7 of the present invention;
FIG. 10 is a sectional view taken along line G-G of the embodiment of FIG. 7 in accordance with the present invention;
FIG. 11 is a cross-sectional view taken along line H-H of the embodiment of FIG. 7 of the present invention;
figure 12 is a schematic view of the welded connection of the steel beam and the end plate of the present invention.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. 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.
Example 1: as shown in fig. 2-6, the present embodiment provides a bonding-retarded prestressed core-penetrating bolt-end plate connecting reinforced concrete column-steel beam connecting node, which includes a reinforced concrete column 1, a steel beam 2, a bonding-retarded prestressed core-penetrating bolt 3, an overhanging end plate 4, a stiffening rib 5, a column middle stressed longitudinal rib 6, and a node core area cylindrical steel plate 7, wherein a circle of node core area cylindrical steel plate 7 is arranged in a core area of the reinforced concrete column 1 along a height range of the steel beam on an outer surface of the concrete column, a column middle stressed longitudinal rib 6 vertically arranged in the reinforced concrete column 1 is installed in the reinforced concrete column, an overhanging end plate 4 is welded outside the core area cylindrical steel plate 7, the overhanging end plate 4 is connected with the steel beam 2 and the stiffening rib 5 in advance to form a whole body by welding, the overhanging end plate 4 and the node core area cylindrical steel plate 7 are arranged in two groups perpendicular to each, The node core area cylindrical surface steel plate 7 is correspondingly provided with a slow bonding prestress core penetrating bolt 3 in a penetrating way. Holes corresponding to the slow-bonding prestress core penetrating bolts 3 are formed in the overhanging end plate 4, the cylindrical surface steel plate 7 in the node core area and the reinforced concrete column 1. The overhanging end plate 4 is welded with the steel beam 2 through butt welding, and the overhanging end plate 4 is welded with the stiffening rib 5 through double-sided fillet welding.
The specific design and construction process comprises the following steps: 1. firstly, calculating and selecting section specifications of a reinforced concrete column 1, a steel beam 2 and a stressed longitudinal rib 6 in the column according to the design working condition of an actual building, and extracting node load; 2. secondly, determining the diameter and the length of a screw of the slow-bonding prestress core-penetrating bolt 3, the plane size and the thickness of the overhanging end plate 4, the stiffening rib 5 and the cylindrical steel plate 7 in the node core area according to node load analysis; 3. then, the steel beam 2, the overhanging end plate 4 and the stiffening rib 5 are reliably connected to form a node beam end through a welding line, namely the steel beam 2 and the overhanging end plate 4 are connected by adopting a butt welding line through the welding line, and the overhanging end plate 4 and the stiffening rib 5 are connected by adopting a double-sided fillet welding line; 4. then positioning and fixing the node beam end, the stressed longitudinal rib (6) in the column and the cylindrical steel plate 7 in the node core area and the slow-bonding prestress core penetrating bolt 3 according to design; 5. and finally, pouring concrete with a determined strength label, and applying pretension force to the 3 by adopting intelligent numerical control tensioning equipment after the concrete reaches a preset age so as to form a node whole.
The connection structure of the embodiment practically realizes 'clear force transmission and reasonable stress'. In terms of stress performance, the steel beam of the invention is subjected to bending moment, shearing force and axial force. On one hand, the beam end is connected with the stiffening end plate through a welding seam, wherein the flange of the steel beam is connected with the end plate through a butt welding seam, and the web of the steel beam is connected with the end plate through a butt welding seam (or a double-sided fillet welding seam). On the other hand, the stiffening end plate is connected with the reinforced concrete column through the slow bonding prestress core penetrating bolt. The combination of internal forces experienced by the steel beam can be decomposed into tensile, compressive and shear forces. In the beam end-end plate weld joint connection, tensile force and pressure force are transmitted to the end plates through the butt weld of the steel beam flanges, and shear force is transmitted to the end plates through the butt weld (or fillet weld) of the steel beam webs respectively; in the connection of the end plate-column end core penetrating bolt, the tensile force and the shearing force are respectively transmitted to the reinforced concrete column through the end plate by the slow bonding prestressed bolt.
The whole course of processing preparation of this embodiment all can be accomplished at prefabricated mill, and reserves the hole at the overhanging beam-ends of node core space girder steel, and the dry construction work such as component hoist and mount and bolted connection only needs to be carried out on the scene, has avoided wet operation, and the node simple structure of this embodiment, processing is convenient, and it is clear and definite to pass power, and the atress is reasonable. Compared with the traditional beam-through type RCS node, the concrete pouring difficulty and the manufacturing cost in the core area of the node can be greatly reduced; compared with the existing column through type RCS node, the slow bonding prestress and numerical control tensioning technology is innovatively adopted, the slow bonding prestress and numerical control tensioning technology ensures that the prestress core-penetrating bolt is firmly bonded with concrete, and the problems of non-compact grouting in a post-tensioning method and corrosion resistance and fatigue resistance of the prestress bolt and an anchorage device in unbonded prestress concrete are avoided; the latter obviously improves the tensioning precision of the applied prestress and can further reduce the comprehensive material cost and the engineering cost. The invention not only completely realizes the prefabrication and the component production of processing and manufacturing, eliminates the cast-in-place of concrete, greatly improves the construction efficiency and has quick construction period; and the node integrity is strong, and the stress is safe and reliable. Therefore, the invention has obvious economic benefit and outstanding technical effect, is worthy of industrialized implementation and wide popularization and application, and is particularly suitable for a multi-story and high-rise assembled reinforced concrete column-steel beam (RCS) mixed structure system.
Example 2: the embodiment provides a slow-bonding prestressed core-penetrating bolt-end plate connecting reinforced concrete column-steel beam connecting node, which comprises a reinforced concrete column 1, a steel beam 2, a slow-bonding prestressed core-penetrating bolt 3, an embedded end plate 4, a stiffening rib 5, a column middle stress longitudinal rib 6 and a node core area stirrup 8, a circle of node core area stirrups 8 which are arranged at equal intervals are arranged in the core area of the reinforced concrete column 1 along the height range of a steel beam on the outer surface of the concrete column, the reinforced concrete column 1 is internally provided with a vertically arranged column middle stressed longitudinal bar 6, the outer side of the stirrup 8 in the node core area is provided with a pre-embedded end plate 4, the embedded end plates 4 are connected with the steel beams 2 and the stiffening ribs 5 in advance through welding to form a whole, the embedded end plates 4 are two groups of arrangements which are perpendicular to each other, and the embedded end plates 4 are correspondingly provided with the slow-bonding prestress core penetrating bolts 3 in a penetrating mode. The embedded end plate 4 and the reinforced concrete column 1 are provided with holes corresponding to the slow-bonding prestress core penetrating bolts 3, and stirrups 8 in the core area of the node are arranged in a staggered mode with the holes. The embedded end plates 4 are welded with the steel beams 2 through butt welding seams, and the extended end plates 4 are welded with the stiffening ribs 5 through double-sided fillet welding seams.
The specific design and construction process comprises the following steps: 1. firstly, calculating and selecting section specifications of a reinforced concrete column 1, a steel beam 2 and a stressed longitudinal rib 6 in the column according to the design working condition of an actual building, and extracting node load; 2. secondly, determining the diameter and the screw length of the slow-bonding prestress core-penetrating bolt 3, the plane size and the thickness of the overhanging end plate 4 and the stiffening rib 5 and the section specification of the stirrup in the core area of the node according to node load analysis; 3. then, the steel beam 2, the overhanging end plate 4 and the stiffening rib 5 are reliably connected to form a node beam end through a welding line, namely the steel beam 2 and the overhanging end plate 4 are connected by adopting a butt welding line through the welding line, and the overhanging end plate 4 and the stiffening rib 5 are connected by adopting a double-sided fillet welding line; 4. then, positioning and fixing the node beam end, the node core area steel bar 6, the node core area stirrup 8 and the slow bonding prestress core penetrating bolt 3 according to design; 5. and finally, pouring concrete with a determined strength label, and applying pretension force to the 3 by adopting intelligent numerical control tensioning equipment after the concrete reaches a preset age so as to form a node whole.
The connection structure of the embodiment practically realizes 'clear force transmission and reasonable stress'. In terms of stress performance, the steel beam of the invention is subjected to bending moment, shearing force and axial force. On one hand, the beam end is connected with the stiffening end plate through a welding seam, wherein the flange of the steel beam is connected with the end plate through a butt welding seam, and the web of the steel beam is connected with the end plate through a butt welding seam (or a double-sided fillet welding seam). On the other hand, the stiffening end plate is connected with the reinforced concrete column through the slow bonding prestress core penetrating bolt. The combination of internal forces experienced by the steel beam can be decomposed into tensile, compressive and shear forces. In the beam end-end plate weld joint connection, tensile force and pressure force are transmitted to the end plates through the butt weld of the steel beam flanges, and shear force is transmitted to the end plates through the butt weld (or fillet weld) of the steel beam webs respectively; in the connection of the end plate-column end core penetrating bolt, the tensile force and the shearing force are respectively transmitted to the reinforced concrete column through the end plate by the slow bonding prestressed bolt.
The whole course of processing preparation of this embodiment all can be accomplished at prefabricated mill, and reserves the hole at the overhanging beam-ends of node core space girder steel, and the dry construction work such as component hoist and mount and bolted connection only needs to be carried out on the scene, has avoided wet operation, and the node simple structure of this embodiment, processing is convenient, and it is clear and definite to pass power, and the atress is reasonable. Compared with the traditional beam-through type RCS node, the concrete pouring difficulty and the manufacturing cost in the core area of the node can be greatly reduced; compared with the existing column through type RCS node, the slow bonding prestress and numerical control tensioning technology is innovatively adopted, the slow bonding prestress and numerical control tensioning technology ensures that the prestress core-penetrating bolt is firmly bonded with concrete, and the problems of non-compact grouting in a post-tensioning method and corrosion resistance and fatigue resistance of the prestress bolt and an anchorage device in unbonded prestress concrete are avoided; the latter obviously improves the tensioning precision of the applied prestress and can further reduce the comprehensive material cost and the engineering cost. The invention not only completely realizes the prefabrication and the component production of processing and manufacturing, eliminates the cast-in-place of concrete, greatly improves the construction efficiency and has quick construction period; and the node integrity is strong, and the stress is safe and reliable. Therefore, the invention has obvious economic benefit and outstanding technical effect, is worthy of industrialized implementation and wide popularization and application, and is particularly suitable for a multi-story and high-rise assembled reinforced concrete column-steel beam (RCS) mixed structure system.
The present invention is illustrated by way of example and not by way of limitation. It will be apparent to those skilled in the art that other variations and modifications may be made in the foregoing disclosure without departing from the spirit or essential characteristics of all embodiments, and that all changes and modifications apparent from the above teachings are within the scope of the invention.
Claims (6)
1. The utility model provides a slow prestressing force that bonds wears core bolt-end plate connecting reinforced concrete post-girder steel connected node, a serial communication port, including reinforced concrete post (1), girder steel (2), slow prestressing force that bonds wears core bolt (3), overhanging end plate (4), stiffening rib (5), in post atress indulge muscle (6), node core region cylinder steel sheet (7), reinforced concrete post (1) core region is provided with round node core region cylinder steel sheet (7) along concrete post surface girder steel height within range, install in reinforced concrete post (1) the post of vertical setting atress indulge muscle (6), core region cylinder steel sheet (7) outside welding has overhanging end plate (4), overhanging end plate (4) are connected through welding in advance and girder steel (2) and stiffening rib (5) and are formed wholly, overhanging end plate (4) are established, Node core area cylinder steel sheet (7) are mutually perpendicular's two sets of arranging, and are two sets of correspondingly wear to be equipped with slowly bond prestressing force and wear to be equipped with on overhanging end plate (4), the node core area cylinder steel sheet (7) and wear to pass through core bolt (3).
2. The slow-bonding prestressed core-penetrating bolt-end plate connecting reinforced concrete column-steel beam connecting node according to claim 1, wherein holes corresponding to the slow-bonding prestressed core-penetrating bolts (3) are formed in the overhanging end plate (4), the cylindrical steel plate (7) in the core area of the node and the reinforced concrete column (1).
3. A slow-bonding prestressed core-penetrating bolt-end plate connecting reinforced concrete column-steel beam connecting joint according to claim 2, characterized in that said overhanging end plate (4) is welded to the steel beam (2) by butt weld, said overhanging end plate (4) is welded to the stiffening ribs (5) by double fillet weld.
4. A slow-bonding prestress core-penetrating bolt-end plate connecting reinforced concrete column-steel beam connecting node is characterized by comprising a reinforced concrete column (1), a steel beam (2), a slow-bonding prestress core-penetrating bolt (3), an embedded end plate (4), a stiffening rib (5), a column middle stress longitudinal rib (6) and a node core area stirrup (8), wherein a circle of node core area stirrups (8) are equidistantly arranged in the core area of the reinforced concrete column (1) along the height range of the steel beam on the outer surface of the concrete column, the vertically arranged column middle stress longitudinal rib (6) is arranged in the reinforced concrete column (1), the embedded end plate (4) is arranged outside the node core area stirrup (8), the embedded end plate (4) is connected with the steel beam (2) and the stiffening rib (5) into a whole in advance through welding, and the embedded end plates (4) are arranged in two groups which are mutually perpendicular, and the two groups of embedded end plates (4) are correspondingly provided with slow-bonding prestress core penetrating bolts (3).
5. The slow-bonding prestressed core-penetrating bolt-end plate connecting reinforced concrete column-steel beam connecting node according to claim 4, wherein holes corresponding to the slow-bonding prestressed core-penetrating bolts (3) are formed in the embedded end plate (4) and the reinforced concrete column (1), and stirrups (8) in the core area of the node are arranged in a staggered mode with the holes.
6. The slow-bonding prestressed core-penetrating bolt-end plate connecting reinforced concrete column-steel beam connecting node as claimed in claim 4, wherein said embedded end plate (4) is welded to the steel beam (2) by butt weld, and said overhanging end plate (4) is welded to the stiffening rib (5) by double fillet weld.
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| CN202011248623.2A CN112282062A (en) | 2020-11-10 | 2020-11-10 | Slow-bonding prestress core-penetrating bolt-end plate connecting reinforced concrete column-steel beam connecting node |
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| CN202011248623.2A CN112282062A (en) | 2020-11-10 | 2020-11-10 | Slow-bonding prestress core-penetrating bolt-end plate connecting reinforced concrete column-steel beam connecting node |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112942569A (en) * | 2021-04-16 | 2021-06-11 | 中国电建集团福建省电力勘测设计院有限公司 | Detachable connecting joint of steel beam and reinforced concrete column |
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