CN114108807A - Beam column connecting node - Google Patents
Beam column connecting node Download PDFInfo
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- CN114108807A CN114108807A CN202111440981.8A CN202111440981A CN114108807A CN 114108807 A CN114108807 A CN 114108807A CN 202111440981 A CN202111440981 A CN 202111440981A CN 114108807 A CN114108807 A CN 114108807A
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 210
- 239000010959 steel Substances 0.000 claims abstract description 210
- 238000004873 anchoring Methods 0.000 claims abstract description 41
- 230000021715 photosynthesis, light harvesting Effects 0.000 claims abstract description 12
- 210000001503 joint Anatomy 0.000 claims abstract description 8
- 230000000149 penetrating effect Effects 0.000 claims abstract description 7
- 229910001209 Low-carbon steel Inorganic materials 0.000 claims description 12
- 230000002787 reinforcement Effects 0.000 claims description 4
- 239000012530 fluid Substances 0.000 claims 1
- 238000005034 decoration Methods 0.000 abstract description 4
- 238000003466 welding Methods 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 4
- 238000005452 bending Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 238000010008 shearing Methods 0.000 description 2
- 239000003351 stiffener Substances 0.000 description 2
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000006467 substitution reaction Methods 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
- E04B1/38—Connections for building structures in general
- E04B1/58—Connections for building structures in general of bar-shaped building elements
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- Electromagnetism (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Joining Of Building Structures In Genera (AREA)
Abstract
The invention discloses a beam-column connection node, which comprises: the first square concrete-filled steel tube column and the second square concrete-filled steel tube column are in up-down butt joint; the connecting cylinder is sleeved at the butt joint; the two H-shaped steel beams are respectively arranged on two opposite sides of the connecting cylinder, a first L-shaped connecting piece is arranged between the upper flange of each H-shaped steel beam and the connecting cylinder, a second L-shaped connecting piece is arranged between the lower flange of each H-shaped steel beam and the connecting cylinder, a detachable energy dissipation part is arranged on the flange of each H-shaped steel beam, and an anchoring plate is arranged on the web plate of each H-shaped steel beam; the first prestressed steel strand penetrates through the connecting cylinder and the first square concrete-filled steel tube column, and two ends of the first prestressed steel strand are respectively anchored on two anchoring plates positioned on different sides of the connecting cylinder; and the second prestressed steel strand is arranged on the connecting cylinder and the second square steel tube concrete column in a penetrating manner, and two ends of the second prestressed steel strand are anchored on two anchoring plates positioned on different sides of the connecting cylinder respectively. The beam column connecting node adopting the structure has good stress performance and is convenient for later decoration.
Description
Technical Field
The invention relates to the technical field of earthquake prevention and disaster reduction of building structures, in particular to a beam-column connecting node.
Background
China is a country with frequent earthquakes, so the safety and reliability of a building structure are important barriers for ensuring personal safety and property safety, beam-column connecting nodes are used as important components of the building structure, the safety and reliability of the whole building structure are directly influenced by the strength of the stress performance of the beam-column connecting nodes, but the welding parts of the traditional beam-column connecting nodes are easily subjected to brittle failure, the flange parts of beams are easily torn, the stress performance of the beam-column connecting nodes is limited, and most of the traditional beam-column connecting nodes adopt H-shaped steel columns and H-shaped steel beams, wherein the stress condition of the H-shaped steel columns is complex and is inconvenient for later decoration.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art. Therefore, the beam-column connecting node has good stress performance and is convenient for later decoration.
According to the beam column connected node of the embodiment of the invention, including: a first square concrete filled steel tubular column; the second square concrete-filled steel tube column is arranged below the first square concrete-filled steel tube column and is in up-down butt joint with the first square concrete-filled steel tube column; the connecting cylinder is sleeved at the butt joint of the first square concrete-filled steel tube column and the second square concrete-filled steel tube column; the two H-shaped steel beams are respectively arranged on two opposite sides of the connecting cylinder, a first L-shaped connecting piece is arranged between the upper flange of each H-shaped steel beam and the upper part of the connecting cylinder, a second L-shaped connecting piece is arranged between the lower flange of each H-shaped steel beam and the lower part of the connecting cylinder, each first L-shaped connecting piece comprises a first vertical connecting plate and a first transverse connecting plate, each first vertical connecting plate, each connecting cylinder and the first square concrete-filled steel tube column are connected through high-strength split bolts, each first transverse connecting plate is connected with the upper flange of each H-shaped steel beam through high-strength bolts, each second L-shaped connecting piece comprises a second vertical connecting plate and a second transverse connecting plate, each second vertical connecting plate, each connecting cylinder and each second square concrete-filled steel tube column are connected through high-strength split bolts, and each second transverse connecting plate is connected with the lower flange of each H-shaped steel beam through high-strength bolts, detachable energy dissipation components are arranged on the upper flange and the lower flange of the H-shaped steel beam, and an anchoring plate is arranged on a web plate of the H-shaped steel beam; the first prestress steel strand penetrates through the connecting cylinder and the first square concrete-filled steel tube column, one end of the first prestress steel strand is anchored on the anchoring plate of one H-shaped steel beam, and the other end of the first prestress steel strand is anchored on the anchoring plate of the other H-shaped steel beam; the second prestress steel strand penetrates through the connecting cylinder and the second square steel tube concrete column, one end of the second prestress steel strand is anchored on one of the anchoring plates of the H-shaped steel beam, and the other end of the second prestress steel strand is anchored on the other anchoring plate of the H-shaped steel beam.
The beam-column connecting joint provided by the embodiment of the invention at least has the following beneficial effects: each member is assembled and connected in the process of site operation, welding operation is not needed, welding quantity of beam column connecting nodes can be reduced, meanwhile, the first prestress steel strand, the second prestress steel strand and the energy dissipation part can dissipate earthquake energy, residual deformation of each member and damage of a main structure are reduced, wherein the energy dissipation part can be replaced after being damaged, the stress performance of the beam column connecting nodes is improved by the structure, and later-stage decoration can be facilitated by the first square steel pipe concrete column and the second square steel pipe concrete column.
According to some embodiments of the invention, the energy dissipation component is a U-shaped mild steel damper, and the U-shaped mild steel damper is connected to the flange of the H-shaped steel beam through a high-strength bolt.
According to some embodiments of the invention, the U-shaped mild steel dampers are connected to both upper and lower sides of the flange of the H-shaped steel beam.
According to some embodiments of the invention, the first L-shaped connector is provided with a first stiffening rib and the second L-shaped connector is provided with a second stiffening rib.
According to some embodiments of the invention, the side portion of the connecting cylinder is provided with third transverse connecting plates and fourth transverse connecting plates which are distributed at intervals along the length direction of the connecting cylinder, a third vertical connecting plate through which the first prestressed steel strand and the second prestressed steel strand can pass is arranged between the third transverse connecting plates and the fourth transverse connecting plates, one end of the H-shaped steel beam close to the connecting cylinder is provided with an end plate through which the first prestressed steel strand and the second prestressed steel strand can pass, the end plate is connected with the third vertical connecting plates through high-strength bolts, the first transverse connecting plates are connected with the third transverse connecting plates through high-strength bolts, and the second transverse connecting plates are connected with the fourth transverse connecting plates through high-strength bolts, a cross rib plate is arranged between the side part of the connecting cylinder and the third vertical connecting plate, the top of the cross rib plate is connected to the third transverse connecting plate, and the bottom of the cross rib plate is connected to the fourth transverse connecting plate.
According to some embodiments of the invention, one of the bottom of the first square concrete filled steel tubular column and the top of the second square concrete filled steel tubular column is provided with a protrusion, and the other is provided with a groove for embedding the protrusion.
According to some embodiments of the present invention, a plurality of overhanging steel bars are arranged at the top of the second square concrete-filled tubular column, a plurality of grouting sleeves are buried in the lower portion of the first square concrete-filled tubular column, the overhanging steel bars are inserted into the grouting sleeves in a one-to-one correspondence manner, a preformed hole for penetrating the first prestressed steel strand is arranged on the first square concrete-filled tubular column, and the preformed hole is communicated with the grouting sleeves.
According to some embodiments of the invention, a flow guide pipe is connected between the grouting sleeves communicated with the same prepared hole.
According to some embodiments of the invention, the first square concrete filled steel tubular column has a first anchoring member embedded therein and connected to the grouting sleeve, and the second square concrete filled steel tubular column has a second anchoring member embedded therein and connected to the overhanging steel bar.
According to some embodiments of the invention, the first square concrete-filled steel tubular column has a first anchoring bar embedded therein and connected to the first anchoring member, and the second square concrete-filled steel tubular column has a second anchoring bar embedded therein and connected to the second anchoring member.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a schematic diagram of the overall structure of an embodiment of the present invention;
FIG. 2 is an exploded view of a portion of the structure of an embodiment of the present invention;
FIG. 3 is a schematic structural view of a concrete filled steel tubular column according to a first embodiment of the present invention;
FIG. 4 is a schematic cross-sectional view of a concrete filled steel tubular column according to a first embodiment of the present invention;
FIG. 5 is a schematic structural view of a second square concrete filled steel tubular column according to an embodiment of the present invention;
FIG. 6 is a schematic cross-sectional view of a second square concrete filled steel tubular column according to an embodiment of the present invention.
Reference numerals:
the concrete-filled steel tube column comprises a first square concrete-filled steel tube column 100, a bulge 110, a grouting sleeve 120, a guide pipe 121, a preformed hole 130, a first anchoring piece 140, a first anchoring steel bar 150, a second square concrete-filled steel tube column 200, a groove 210, an overhanging steel bar 220, a second anchoring piece 230, a second anchoring steel bar 240, a connecting cylinder 300, a third transverse connecting plate 310, a fourth transverse connecting plate 320, a third vertical connecting plate 330, a cross rib plate 340, an H-shaped steel beam 400, an anchoring plate 410, an end plate 420, a first L-shaped connecting piece 500, a first vertical connecting plate 510, a first transverse connecting plate 520, a first stiffening rib 530, a second L-shaped connecting piece 600, a second vertical connecting plate 610, a second transverse connecting plate 620, a second stiffening rib 630, a first pre-stressed steel strand 700, a second pre-stressed steel strand 800 and a U-shaped soft steel damper 900.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
In the description of the present invention, it should be understood that if an orientation description is referred to, for example, the directions or positional relationships indicated by upper, lower, front, rear, left, right, etc., are based on the directions or positional relationships shown in the drawings, it is only for convenience of description and simplification of description, but it is not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, if several, more than, less than, more than, above, below, or within words appear, several means are one or more, several means are two or more, more than, less than, more than, etc. are understood as not including the number, and more than, less than, within, etc. are understood as including the number.
In the description of the present invention, if the first, second, etc. terms appear, they are only used for distinguishing technical features, but are not to be interpreted as indicating or implying relative importance or implying number of indicated technical features or implying precedence of indicated technical features.
In the description of the present invention, unless otherwise explicitly limited, terms such as arrangement, installation, connection and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific contents of the technical solutions.
Referring to fig. 1 and 2, the beam-column connection node according to the embodiment of the present invention includes a first square concrete-filled steel tubular column 100, a second square concrete-filled steel tubular column 200, a connecting cylinder 300, an H-shaped steel beam 400, a first pre-stressed steel strand 700, and a second pre-stressed steel strand 800.
The first square concrete-filled steel tube column 100 and the second square concrete-filled steel tube column 200 are vertically arranged, the second square concrete-filled steel tube column 200 is arranged below the first square concrete-filled steel tube column 100 and is in up-and-down butt joint with the first square concrete-filled steel tube column 100, the connecting cylinder 300 is sleeved at the butt joint of the first square concrete-filled steel tube column 100 and the second square concrete-filled steel tube column 200, the number of the H-shaped steel beams 400 is two, the two H-shaped steel beams 400 are transversely arranged, the two H-shaped steel beams 400 are respectively arranged at two opposite sides of the connecting cylinder 300, a first L-shaped connecting piece 500 is arranged between the upper flange of the H-shaped steel beam 400 and the upper part of the connecting cylinder 300, a second L-shaped connecting piece 600 is arranged between the lower flange of the H-shaped steel beam 400 and the lower part of the connecting cylinder 300, the first L-shaped connecting piece 500 comprises a first vertical connecting plate 510 and a first transverse connecting plate 520, the first vertical connecting plate 510, the connecting cylinder 300 and the first square concrete-filled steel tube column 100 are connected through high-strength split bolts, the first transverse connecting plate 520 is connected with the upper flange of the H-shaped steel beam 400 through a high-strength bolt, the second L-shaped connecting piece 600 comprises a second vertical connecting plate 610 and a second transverse connecting plate 620, the second vertical connecting plate 610, the connecting cylinder 300 and the second square steel tube concrete column 200 are connected through a high-strength split bolt, the second transverse connecting plate 620 is connected with the lower flange of the H-shaped steel beam 400 through a high-strength bolt, the upper flange and the lower flange of the H-shaped steel beam 400 are respectively provided with a detachable energy dissipation part, the web plate of the H-shaped steel beam 400 is provided with an anchoring plate 410, the first prestressed steel strand 700 is arranged on the connecting cylinder 300 and the first square steel tube concrete column 100 in a penetrating manner, one end of the first prestressed steel strand 700 is anchored on the anchoring plate 410 of one H-shaped steel beam 400, the other end of the first prestressed steel strand 700 is anchored on the anchoring plate 410 of the other H-shaped steel beam 400, the second prestressed steel strand 800 is arranged on the connecting cylinder 300 and the second square steel tube concrete column 200 in a penetrating manner, one end of the second prestressed steel strand 800 is anchored to the anchoring plate 410 of one of the H-shaped steel beams 400, and the other end of the second prestressed steel strand 800 is anchored to the anchoring plate 410 of the other H-shaped steel beam 400.
The components are connected in an assembly mode in the field construction process, welding operation is not needed, the welding amount of beam-column connecting nodes can be reduced, meanwhile, the first prestress steel strand 700, the second prestress steel strand 800 and energy dissipation parts can dissipate earthquake energy, and therefore residual deformation of the components and damage of a main body structure are reduced, the energy dissipation parts can be replaced after being damaged, the structure improves the stress performance of the beam-column connecting nodes, specifically, when a small earthquake occurs, due to the fact that the corner of the H-shaped steel beam 400 is small, elastic strain energy can be stored and released back and forth in the first prestress steel strand 700 and the second prestress steel strand 800 to achieve a self-resetting function, when the earthquake occurs and when the earthquake occurs, energy input into the structure by the earthquake can be dissipated through the energy dissipation parts, and prepressing bending moment is generated by the prestress force in the prestress steel strands, the controllable constrained rotation of the beam-column joint is formed, the plastic hinge formation similar to the traditional steel frame beam-column joint is effectively avoided, the transmission radius of the column bottom is reduced, and the rigidity requirement of the joint is lowered. Because the U-shaped mild steel damper is connected to the upper side and the lower side of the beam flange by the high-strength bolts, when the beam flange is damaged after an earthquake, the U-shaped mild steel damper can be replaced again, so that the node can recover the energy consumption capability to continue working. In addition, the upper and lower steel tube concrete columns are connected in a sleeve mode through the prestress steel strand reserved holes, the connecting effect of the upper and lower steel tube concrete columns in the middle of the sleeve is enhanced, the problems that the nodes cannot fully exert self-resetting, energy consumption and the like due to prying of the upper and lower steel tube concrete columns in the middle of the sleeve after stress is effectively solved, furthermore, due to the fact that prestress steel strands are applied to two ends of the prestress steel strands, the sleeve beam column connecting piece is enabled to be more attached to the inner side square steel tube concrete column, the nodes are also in a vertical and horizontal compression state at the moment, and bending resistance bearing capacity and shearing resistance bearing capacity of the nodes are improved
And adopt first square concrete filled steel tubular column 100 and second square concrete filled steel tubular column 200 can be convenient for the later stage fitment, and further, foretell each component all can be prefabricated in the mill, can shorten construction cycle and reduce labour cost.
Referring to fig. 1 and 2, in some embodiments, the energy dissipation member is a U-shaped mild steel damper 900, the U-shaped mild steel damper 900 is connected to the flange of the H-shaped steel beam 400 by a high-strength bolt, and the yield strength of the U-shaped mild steel damper 900 is lower than that of the flange of the H-shaped steel beam 400, and is simple in structure and easy to assemble.
Referring to fig. 1 and 2, in some embodiments, U-shaped mild steel dampers 900 are connected to upper and lower sides of a flange of the H-shaped steel beam 400, so as to facilitate the improvement of the stress performance of the beam-column connection node.
It should be noted that, in some embodiments, the energy consuming component may also be a friction damper, which is not limited herein.
Referring to fig. 1 and 2, in some embodiments, the first L-shaped connector 500 is provided with the first stiffener 530, and the second L-shaped connector 600 is provided with the second stiffener 630, so that the structural strength of the first L-shaped connector 500 and the second L-shaped connector 600 can be enhanced, and the stability and reliability of the first L-shaped connector 500 and the second L-shaped connector 600 can be enhanced.
Referring to fig. 2, in some embodiments, the side of the connecting cylinder 300 is provided with third and fourth transverse connecting plates 310 and 320, the third and fourth transverse connecting plates 310 and 320 are spaced apart from each other along the length direction of the connecting cylinder 300, a third vertical connecting plate 330 through which the first and second prestressed steel strands 700 and 800 can pass is disposed between the third and fourth transverse connecting plates 310 and 320, one end of the H-shaped steel beam 400 near the connecting cylinder 300 is provided with an end plate 420 through which the first and second prestressed steel strands 700 and 800 can pass, the end plate 420 is connected with the third vertical connecting plate 330 by high-strength bolts, the first and third transverse connecting plates 520 and 310 are connected by high-strength bolts, the second and fourth transverse connecting plates 620 and 320 are connected by high-strength bolts, cross ribs 340 are disposed between the side of the connecting cylinder 300 and the third vertical connecting plate 330, the top of the cross rib plate 340 is connected to the third transverse connecting plate 310, and the bottom of the cross rib plate 340 is connected to the fourth transverse connecting plate 320, so that the stability and reliability of the connection relationship between the connecting cylinder 300 and the H-shaped steel beam 400 can be enhanced.
Referring to fig. 3 to 6, in some embodiments, the bottom of the first square concrete filled steel tubular column 100 is provided with a protrusion 110, and the top of the second square concrete filled steel tubular column 200 is provided with a groove 210 for embedding the protrusion 110, so that the first square concrete filled steel tubular column 100 and the second square concrete filled steel tubular column 200 can be conveniently butted up and down during assembly, and the stability and reliability of the connection relationship between the first square concrete filled steel tubular column 100 and the second square concrete filled steel tubular column 200 can be enhanced.
It should be noted that, in some embodiments, the protrusion may also be disposed on the top of the second square concrete filled steel tubular column, and the corresponding groove is disposed on the bottom of the first square concrete filled steel tubular column, which is not limited herein.
Referring to fig. 3 to 6, in some embodiments, a plurality of external reinforcing bars 220 are disposed on the top of the second square concrete filled steel tubular column 200, a plurality of grouting sleeves 120 are buried in the lower portion of the first square concrete filled steel tubular column 100, the plurality of external reinforcing bars 220 are inserted into the plurality of grouting sleeves 120 in a one-to-one correspondence manner, a prepared hole 130 for penetrating a first prestressed steel strand 700 is disposed on the first square concrete filled steel tubular column 100, the prepared hole 130 is communicated with the grouting sleeves 120, and after assembly, grouting is performed into the grouting sleeves 120 through the prepared hole 130, so that stability and reliability of a connection relationship between the first square concrete filled steel tubular column 100 and the second square concrete filled steel tubular column 200 can be enhanced, the shearing force and the bending moment applied to the H-shaped steel beam 400 can be effectively transmitted to the first square concrete filled steel tubular column 100 and the second square concrete filled steel tubular column 200, so that the comprehensive bearing capacity of the beam-column connection node is improved. The diameter of the preformed hole 130 is greater than the diameter of the prestressed steel strand so as to facilitate grouting, and specifically, the diameter of the preformed hole 130 is greater than 1.5 times the diameter of the first prestressed steel strand 700.
Referring to fig. 4, in some embodiments, a flow guide pipe 121 is connected between the grouting sleeves 120 communicated with the same prepared hole 130, which is beneficial to improving grouting efficiency.
Referring to fig. 4 and 6, in some embodiments, a first anchoring member 140 connected to the grouting sleeve 120 is embedded in the first square concrete filled steel tubular column 100, and a second anchoring member 230 connected to the external reinforcement 220 is embedded in the second square concrete filled steel tubular column 200, which is beneficial to improving the stability and reliability of the connection relationship between the grouting sleeve 120 and the first square concrete filled steel tubular column 100 and between the external reinforcement 220 and the second square concrete filled steel tubular column 200.
Referring to fig. 4 and 6, in some embodiments, a first anchoring steel bar 150 connected to the first anchoring member 140 is embedded in the first square concrete filled steel tubular column 100, and a second anchoring steel bar 240 connected to the second anchoring member 230 is embedded in the second square concrete filled steel tubular column 200, which is beneficial to further improving the stability and reliability of the connection relationship between the grouting sleeve 120 and the first square concrete filled steel tubular column 100 and between the external reinforcing steel bar 220 and the second square concrete filled steel tubular column 200.
In the description of the present specification, if reference is made to the description of "one embodiment", "some embodiments", "exemplary embodiments", "examples", "specific examples", and "some examples", etc., reference is made to the terminology, it is intended that a particular feature, structure, material, or characteristic described in connection with the embodiment or example be included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (10)
1. A beam-column connection node, comprising:
a first square concrete filled steel tubular column (100);
the second square concrete-filled steel tube column (200), the second square concrete-filled steel tube column (200) is arranged below the first square concrete-filled steel tube column (100) and is in up-and-down butt joint with the first square concrete-filled steel tube column (100);
the connecting cylinder (300) is sleeved at the butt joint of the first square concrete-filled steel tube column (100) and the second square concrete-filled steel tube column (200);
the connecting device comprises two H-shaped steel beams (400), wherein the two H-shaped steel beams (400) are respectively arranged on two opposite sides of a connecting cylinder (300), a first L-shaped connecting piece (500) is arranged between the upper flange of each H-shaped steel beam (400) and the upper portion of the connecting cylinder (300), a second L-shaped connecting piece (600) is arranged between the lower flange of each H-shaped steel beam (400) and the lower portion of the connecting cylinder (300), each first L-shaped connecting piece (500) comprises a first vertical connecting plate (510) and a first transverse connecting plate (520), the first vertical connecting plate (510), the connecting cylinder (300) and the first square concrete-filled steel tubular column (100) are connected through high-strength split bolts, the first transverse connecting plate (520) is connected with the upper flange of each H-shaped steel beam (400) through high-strength bolts, each second L-shaped connecting piece (600) comprises a second vertical connecting plate (610) and a second transverse connecting plate (620), the second vertical connecting plate (610), the connecting cylinder (300) and the second square concrete-filled steel tube column (200) are connected through high-strength split bolts, the second transverse connecting plate (620) is connected with the lower flange of the H-shaped steel beam (400) through high-strength bolts, detachable energy dissipation components are arranged on the upper flange and the lower flange of the H-shaped steel beam (400), and an anchoring plate (410) is arranged on a web plate of the H-shaped steel beam (400);
the first prestressed steel strand (700) penetrates through the connecting cylinder (300) and the first square concrete-filled steel tube column (100), one end of the first prestressed steel strand (700) is anchored on the anchoring plate (410) of one H-shaped steel beam (400), and the other end of the first prestressed steel strand (700) is anchored on the anchoring plate (410) of the other H-shaped steel beam (400);
the connecting cylinder (300) and the second square steel tube concrete column (200) are arranged in a penetrating mode, one end of the second prestress steel strand (800) is anchored on one of the anchoring plates (410) of the H-shaped steel beam (400), and the other end of the second prestress steel strand (800) is anchored on the other anchoring plate (410) of the H-shaped steel beam (400).
2. The beam-column connection node according to claim 1, wherein the energy dissipation component is a U-shaped mild steel damper (900), and the U-shaped mild steel damper (900) is connected to the flange of the H-shaped steel beam (400) through a high-strength bolt.
3. The beam-column connection node according to claim 2, wherein the U-shaped mild steel dampers (900) are connected to both upper and lower sides of the flange of the H-shaped steel beam (400).
4. A beam-column connection node according to claim 1, characterized in that a first stiffening rib (530) is provided on the first L-shaped connector (500) and a second stiffening rib (630) is provided on the second L-shaped connector (600).
5. The beam-column connection node of claim 1, wherein the side of the connection cylinder (300) is provided with a third transverse connection plate (310) and a fourth transverse connection plate (320), the third transverse connection plate (310) and the fourth transverse connection plate (320) are distributed at intervals along the length direction of the connection cylinder (300), a third vertical connection plate (330) through which the first prestressed steel strand (700) and the second prestressed steel strand (800) can pass is arranged between the third transverse connection plate (310) and the fourth transverse connection plate (320), one end of the H-shaped steel beam (400) close to the connection cylinder (300) is provided with an end plate (420) through which the first prestressed steel strand (700) and the second prestressed steel strand (800) can pass, and the end plate (420) and the third vertical connection plate (330) are connected through a high-strength bolt, the first transverse connecting plate (520) is connected with the third transverse connecting plate (310) through a high-strength bolt, the second transverse connecting plate (620) is connected with the fourth transverse connecting plate (320) through a high-strength bolt, a cross rib plate (340) is arranged between the side portion of the connecting cylinder (300) and the third vertical connecting plate (330), the top of the cross rib plate (340) is connected with the third transverse connecting plate (310), and the bottom of the cross rib plate (340) is connected with the fourth transverse connecting plate (320).
6. A beam-column connection node according to claim 1, characterized in that one of the bottom of the first square steel tubular concrete column (100) and the top of the second square steel tubular concrete column (200) is provided with a protrusion (110) and the other is provided with a groove (210) for embedding the protrusion (110).
7. The beam-column connection node according to claim 1, wherein a plurality of external steel bars (220) are arranged at the top of the second square concrete-filled tubular column (200), a plurality of grouting sleeves (120) are embedded at the lower part of the first square concrete-filled tubular column (100), the external steel bars (220) are inserted into the grouting sleeves (120) in a one-to-one correspondence manner, a preformed hole (130) for penetrating the first prestressed steel strand (700) is formed in the first square concrete-filled tubular column (100), and the preformed hole (130) is communicated with the grouting sleeves (120).
8. The beam-column connection node according to claim 7, wherein a fluid guide pipe (121) is connected between the grouting sleeves (120) communicated with the same prepared hole (130).
9. The beam-column connection node according to claim 7, wherein a first anchoring member (140) connected to the grouting sleeve (120) is embedded in the first square concrete-filled steel tube column (100), and a second anchoring member (230) connected to the overhanging steel bar (220) is embedded in the second square concrete-filled steel tube column (200).
10. A beam-column connection node according to claim 9, wherein the first square concrete-filled steel tube column (100) has a first anchoring reinforcement (150) embedded therein, which is connected to the first anchoring member (140), and the second square concrete-filled steel tube column (200) has a second anchoring reinforcement (240) embedded therein, which is connected to the second anchoring member (230).
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