CN108396859B - Assembly type concrete beam column connecting joint and construction method thereof - Google Patents
Assembly type concrete beam column connecting joint and construction method thereof Download PDFInfo
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- CN108396859B CN108396859B CN201810187482.4A CN201810187482A CN108396859B CN 108396859 B CN108396859 B CN 108396859B CN 201810187482 A CN201810187482 A CN 201810187482A CN 108396859 B CN108396859 B CN 108396859B
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- steel plate
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/20—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of concrete, e.g. reinforced concrete, or other stonelike material
- E04B1/21—Connections specially adapted therefor
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/20—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of concrete, e.g. reinforced concrete, or other stonelike material
- E04B1/21—Connections specially adapted therefor
- E04B1/215—Connections specially adapted therefor comprising metallic plates or parts
Abstract
The invention discloses an assembly type concrete beam-column connecting node and a construction method thereof, and is characterized in that a first lateral steel plate and a second lateral steel plate (8-1 and 8-2) are fixed on the side surface of a beam (7); fixed with on the vertical board on the sleeve: a fifth lateral steel plate (9-1) and a sixth lateral steel plate (9-2); the fifth lateral steel plate (9-1) is parallel to the sixth lateral steel plate (9-2); the outer sides of the first lateral steel plate and the second lateral steel plate are provided with wave grains, and the inner sides of the fifth lateral steel plate (9-1) and the sixth lateral steel plate (9-2) are provided with wave grains. The fabricated concrete beam-column connecting joint and the construction method thereof have the advantage that the connecting joint between beams and columns is improved.
Description
Technical Field
The invention relates to the field of buildings, in particular to an assembly type concrete beam-column connecting node and a construction method thereof.
Background
In the prior art, researches on prefabricated concrete precast beam-column nodes are abundant, and for example, the invention patent with the application number of 201610982219.5 discloses that the prefabricated concrete precast beam-column nodes are provided, and the prefabricated concrete precast beam-column nodes comprise precast columns, precast beams and node connecting components for connecting the precast columns and the precast beams, wherein channels are reserved on the precast columns, and longitudinal bars of the precast beams are embedded in the precast beams. The node connecting member comprises a steel bar, a reinforcing steel bar, a stirrup and cast-in-place concrete; set up four layers on prefabricated post and reserve the pore, the reinforcing bar passes the pore, is connected with the roof beam longitudinal bar through the welding, and is fixed with the stirrup, and cast in situ concrete pours in the beam column connected node region. The connecting member is simple in structure, good in integrity, excellent in seismic performance, capable of remarkably improving the industrialization efficiency of the connecting member, and capable of achieving universalization and standardization.
As another example, the invention with application number 201710561263.3 discloses providing a beam-column rigid connection node of an assembly type concrete frame structure, which comprises a frame beam, a frame column and a beam-column rigid connection node; the tip of frame roof beam is equipped with first steel sheet, and the both sides of frame post are equipped with second steel sheet and third steel sheet, and the second steel sheet passes through second built-in fitting internal thread reinforcing bar and is connected with the third steel sheet, and beam column rigid connection node includes H shaped steel, and first steel sheet passes through H shaped steel and is connected with the second steel sheet, realizes being connected of frame roof beam and frame post. According to the invention, the external H-shaped steel is connected with the beam column of the fabricated concrete frame structure, so that the complexity of beam column connection is greatly simplified, the H-shaped steel is not in the concrete of the precast beam but is connected with the anchor bars in the beam through the end plates, the H-shaped steel is directly connected with the end plates on the side of the column through bolt welding, the connection nodes of the steel structure are directly applied to precast concrete members, the construction process is simplified, the construction speed is improved, the positioning of the beam column is more accurate, and convenience is brought to the subsequent structure construction.
Also, for example, the invention patent with application number 201610165264.1 discloses providing a prefabricated reinforced concrete beam-column node, which is integrally manufactured by a vertical column section 1 and a node superposed beam section 2 in a prefabrication factory, and comprises beam-column longitudinal reinforcement and stirrup binding, connector pre-embedding, formwork erecting, concrete pouring and maintenance. The height of a vertical column section 1 is 1/2, the length of a node superposed beam section 2 is 1/3 of the span of an adjacent column, wherein the vertical column section 1 comprises a pouring section, a concrete-filled steel tube connector, a steel tube connector and a column section longitudinal bar, and the node superposed beam section 2 comprises a groove-shaped pouring section, an inverted T-shaped steel connector and a steel reinforcement cage framework. The invention is used in the construction industry.
The invention also discloses a beam-column joint of a concrete fabricated building and a manufacturing process thereof as an invention patent with the application number of 201610265034.2, wherein the joint comprises a beam-column joint part consisting of a column joint part and a plurality of beam joint parts arranged at the side part of the column joint part at intervals, reserved reinforcing steel bar holes longitudinally penetrating through the column joint part are arranged at intervals on the periphery of the column joint part, and a stressed reinforcing steel bar joint is arranged at the lower part of the outer side end of the beam joint part. The beam-column joint is simple in structure, reduces the on-site steel bar configuration and binding time of the beam-column joint, and is simple and convenient in manufacturing process.
As another invention patent with application number 201611093822.4, there is disclosed providing an assembled reinforced concrete frame beam-column joint comprising: the prefabricated column is provided with a prefabricated column body, an extension section and at least one pair of column lap joint longitudinal ribs, the extension section is arranged in the center of the prefabricated column body and extends towards two sides, and each pair of column lap joint longitudinal ribs are arranged in the extension section, penetrate through the whole extension section and extend out of two ends of the extension section; the precast beam comprises a precast beam body and at least one pair of precast beam longitudinal ribs arranged on the precast beam body, wherein one end of each pair of precast beam longitudinal ribs extends out of one end of the precast beam body, which is close to the precast column; the prefabricated columns are connected with the prefabricated beams through a plurality of stirrups and ultrahigh-performance concrete; the column lap joint longitudinal bars and the precast beam longitudinal bars are fixed by the stirrups at certain intervals.
For the assembled beam-column joint, how to improve the rotation capacity of the limiting beam is always a great problem.
Disclosure of Invention
The invention aims to provide an assembly type concrete beam-column connecting joint which can effectively connect an upper column, a lower column and a beam.
Another object of the present invention is to provide a construction method of a fabricated concrete beam-column connection node, which can effectively connect an upper column, a lower column, and a beam.
An assembled concrete beam column connection node, comprising: a column, a beam 7; the columns are connected with the beams through sleeves 3;
a first lateral steel plate 8-1 and a second lateral steel plate 8-2 are fixed on the lateral surface of the beam 7;
the sleeve is fixed with: a fifth lateral steel plate 9-1 and a sixth lateral steel plate 9-2; the fifth lateral steel plate 9-1 is parallel to the sixth lateral steel plate 9-2;
the outer sides of the first lateral steel plate and the second lateral steel plate are provided with wave grains, and the inner sides of the fifth lateral steel plate 9-1 and the sixth lateral steel plate 9-2 are provided with wave grains; the wave crests and the wave troughs of the fifth lateral steel plate 9-1 and the sixth lateral steel plate 9-2 extend vertically;
the wave patterns of the fifth lateral steel plate 9-1 and the first lateral steel plate 8-1 are matched, and the wave patterns of the sixth lateral steel plate 9-2 and the second lateral steel plate 8-2 are matched.
Further, still include: a seventh bottom steel plate 9-3 and a third bottom steel plate 8-3;
a horizontal seventh bottom steel plate 9-3 is connected between the fifth lateral steel plate 9-1 and the sixth lateral steel plate 9-2, the fifth lateral steel plate 9-1, the sixth lateral steel plate 9-2 and the seventh bottom steel plate 9-3 jointly form a U-shaped connecting piece 9, and three sides of the seventh bottom steel plate 9-3 are respectively connected with the fifth lateral steel plate 9-1, the sixth lateral steel plate 9-2 and the sleeve;
a third bottom steel plate 8-3 is arranged on the bottom surface of the end part of the beam, and two sides of the third bottom steel plate 8-3 are respectively fixedly connected with the first lateral steel plate 8-1 and the second lateral steel plate 8-2;
the upper surface of the seventh bottom steel plate 9-3 is provided with raised grains, and the lower surface of the third bottom steel plate is provided with raised grains matched with the upper surface of the seventh bottom steel plate 9-3;
the extending direction of wave crests and wave troughs of the wave patterns of the seventh bottom steel plate 9-3 is vertical to the fifth lateral steel plate.
Furthermore, a fourth top steel plate is arranged on the top surface of the beam and fixedly connected with the first and second lateral steel plates 8-1 and 8-2;
the fourth top steel plate on the top surface of the beam is provided with wave grains, and the direction of the wave grains is the same as that of the third bottom steel plate 8-3;
also includes: the bottom surface of the eighth top side steel plate is provided with wave grains matched with the fourth top side steel plate;
the fifth lateral steel plate 9-1 and the sixth lateral steel plate 9-2 are designed in an L mode, the steel plate further comprises a horizontal plate which extends outwards and is provided with bolt holes, and a plurality of bolt holes are formed in two ends of the eighth top side steel plate.
Furthermore, a vertical plate is arranged on the upper surface of the eighth top side steel plate 9-4, 2 parallel vertical plates 9-5 are further arranged on the side surface of the sleeve, and a slot is formed between the 2 parallel vertical plates 9-5; the vertical plate on the upper surface of the eighth top side steel plate 9-4 and the side surface of the sleeve are also provided with 2 parallel vertical plates 9-5 which are provided with bolt holes;
the eighth top steel plate 9-4 is provided with a notch so as to facilitate the passage of 2 parallel vertical plates 9-5 when moving downwards;
after the eighth top steel plate 9-4 is fixed with the fifth lateral steel plate 9-1 and the sixth lateral steel plate 9-2, the vertical plate on the upper surface of the eighth top steel plate 9-4 is fixed with the 2 parallel vertical plates 9-5 on the side surface of the sleeve through a bolt-nut assembly.
Further, the columns are circular or square.
A construction method of an assembly type concrete beam-column connecting joint,
firstly, the concrete beam moves downwards towards a U-shaped connecting piece 9 of a sleeve until a third bottom steel plate 8-3 at the bottom of the concrete beam is contacted with a seventh bottom steel plate 9-3, wherein a first lateral steel plate 8-1 and a second lateral steel plate 8-2 at two sides of the concrete beam are respectively matched with the wave patterns of a fifth lateral steel plate 9-1 and a sixth lateral steel plate 9-2 of the U-shaped connecting piece 9 fixed on the side surface of the sleeve 3;
secondly, after the concrete beam is placed into the U-shaped connecting piece 9, an eighth top steel plate is installed on a fourth top steel plate of the concrete beam; the eighth top steel plate is fixed with the fifth lateral steel plate 9-1 of the U-shaped connecting piece 9 and the horizontal plate of the sixth lateral steel plate 9-2 through bolts and nuts.
The invention has the advantages that:
(1) the technical concept of the invention mainly comprises the following five points:
(2) firstly, the horizontal plate of the sleeve is provided with raised grains (applied for another case), and the horizontal plate is divided into at least 2 areas, and the raised grains of adjacent areas are mutually vertical; the design mainly ensures the shear strength of the upper column-lower column connecting surface in different directions; at the same time, this design increases the torsional strength of the upper-lower column interface, which is much less studied in the prior art, but is also a problem encountered in engineering, for example, where the column generates a torque N when subjected to a horizontal eccentric force F (the beam is in an earthquake situation or the device is moving horizontally) as shown in fig. 26.
(3) Secondly, the bending resistance of the joints of the upper column and the lower column is a core (applied for another application), and the vertical plate of the sleeve is provided with horizontal wavy veins (wave crests and wave troughs extend along the horizontal direction), so that the bending resistance of the upper column and the lower column can be better improved. And the design that the sleeve riser set up the horizontal unrestrained line, how the installation and how telescopic horizontal plate and sleeve riser are connected are two difficult points, and this is two problems that this application solved also.
(4) Third, the sleeve design of this application not only is applicable to square column, also is applicable to the cylinder.
(5) Fourthly, the design of matching the wave patterns is adopted between the sleeve and the beam so as to improve the bending strength between the sleeve and the beam. In particular, the application provides two connection forms of a U-shaped sleeve and a square sleeve and a beam. The direction of raised grain is directly influencing the installation of roof beam, and how to solve the installation of roof beam is the problem that this application needs to consider also.
(6) Fifthly, a damper (applied for another application) is arranged between the beam and the column, and the design of an inner layer wave-shaped soft steel and an outer layer wave-shaped soft steel is adopted, wherein the outer layer wave-shaped soft steel can provide initial rigidity; and the energy consumption is realized by the axial deformation of the wavy mild steel.
Drawings
The invention will be further described in detail with reference to examples of embodiments shown in the drawings to which, however, the invention is not restricted.
Fig. 1 is an exploded view of a connection node of an upper column and a lower column of fabricated concrete according to the first embodiment.
Fig. 2 is a top view of the sleeve 3 and the post according to the first embodiment.
FIG. 3 is an exploded schematic view of the prepared column in example one.
Fig. 4 is an exploded view of the fabricated concrete beam-column connection node of the second embodiment.
Fig. 5 is a schematic design view of the sleeve 3 of the second embodiment.
Fig. 6 is a schematic design diagram of a beam according to the second embodiment.
Fig. 7 is a schematic design of a sleeve 3 embodying the third embodiment.
Fig. 8 is a schematic view of a connection plate in which the end of the beam of the third embodiment is connected to the sleeve 3.
Fig. 9 is a schematic view showing several designs of the wave patterns of the seventh floor steel plate 9-3 of the third embodiment.
Fig. 10 is a design diagram of the sleeve 3 of the fourth embodiment.
Fig. 11 is a schematic design view of another sleeve 3 according to the fourth embodiment.
FIG. 12 is a schematic view showing a design of an eighth top steel plate according to another embodiment of the fourth embodiment.
Fig. 13 is a schematic illustration of the corrugated design of the sleeve 3 of the fifth embodiment.
Fig. 14 is a plan view of the split design of the sleeve 3 according to the fifth embodiment.
Fig. 15 is a layout view of the sleeve of the sixth embodiment.
Fig. 16 is a design diagram of a sleeve in the seventh embodiment.
Fig. 17 is a design schematic of a sleeve riser in example seven.
Fig. 18 is a schematic view of a beam-column joint arrangement in the eighth embodiment.
Fig. 19 is a longitudinal schematic view of a damper in an eighth embodiment.
Fig. 20 is a transverse sectional view of a damper in an eighth embodiment.
FIG. 21 is a cross-sectional view of one form of a damper of the ninth embodiment.
FIG. 22 is a cross-sectional view of another form of damper of the ninth embodiment.
Fig. 23 is a longitudinal schematic view of a damper in the ninth embodiment.
Fig. 24 is a schematic view of one form of a damper first connecting plate in the ninth embodiment.
Fig. 25 is a schematic view of another form of the first connecting plate of the damper in the ninth embodiment.
FIG. 26 is a schematic view of the column force as it generates torque.
Detailed Description
First embodiment, as shown in fig. 1 to 2, a prefabricated concrete structure beam-column node includes: an upper column 4-1 and a lower column 4-2;
the upper column 4-1, the lower column 4-2 and the beam are all prefabricated;
the end part of the upper column 4-1 is embedded with a connecting plate 4-1-1, and the connecting plate 4-1-1 of the upper column 4-1 comprises: the bottom surface horizontal plate and the side surface vertical connecting plate are connected into a whole, and the bottom surface of the bottom surface horizontal plate of the upper column 4-1 is provided with raised grains;
the end part of the lower column 4-2 is embedded with a connecting plate 4-2-1, and the connecting plate 4-2-1 of the lower column 4-2 comprises: the top surface horizontal plate and the side surface vertical connecting plate are connected into a whole, and the top surface of the top surface horizontal plate of the lower column 4-2 is provided with raised grains;
the upper column 4-1 is connected with the lower column 4-2 through a sleeve 3;
the sleeve 3 includes: a horizontal plate and a vertical plate;
the top surface of the horizontal plate of the sleeve 3 is provided with raised grains matched with the horizontal plate at the bottom surface of the upper column 4-1, and the bottom surface of the horizontal plate of the sleeve 3 is provided with raised grains matched with the horizontal plate at the top surface of the lower column 4-2.
The sleeve 3, the upper column and the lower column are provided with bolt holes, and the sleeve is tightly connected with the upper column and the sleeve is tightly connected with the lower column through the bolt holes.
The construction method of the first embodiment is as follows:
firstly, preparing a prefabricated assembled concrete column (as shown in fig. 3) with a connecting plate embedded at the end part, wherein the connecting plate 4-2-1 is embedded at the top end of the assembled concrete column, and the connecting plate 4-1-1 is embedded at the bottom end of the assembled concrete column;
secondly, sleeving a sleeve on the top end of the lower column, and connecting a horizontal plate of the sleeve with a top surface connecting plate of the lower column;
thirdly, fixing a bolt and a nut between the sleeve and the lower column;
fourthly, the upper column is inserted into the sleeve, and a horizontal plate of the sleeve is connected with a bottom surface connecting plate of the upper column;
fifth, a bolt and nut are then secured between the sleeve and the upper post.
The first embodiment has the advantages that the connecting plates are arranged at the top end and the bottom end of the column, so that the strength of the end part of the column is enhanced, and the raised grains are arranged on one surface of the connecting plate and matched with the raised grains arranged on the horizontal plate in the sleeve, so that the column and the sleeve are conveniently positioned; thirdly, the shear strength between the horizontal plate and the column of the sleeve is improved through the wavy lines.
In the second embodiment, a beam-column node of an assembled concrete structure, as shown in fig. 4-6, further comprises a beam 7, wherein a first lateral steel plate 8-1 and a second lateral steel plate 8-2 are fixed on two side surfaces of the beam;
fixed with on the vertical board of the face beam of sleeve: a fifth lateral steel plate 9-1 and a sixth lateral steel plate 9-2; the fifth lateral steel plate 9-1 is parallel to the sixth lateral steel plate 9-2;
the outer sides of the first lateral steel plate and the second lateral steel plate are provided with wave grains, and the inner sides of the fifth lateral steel plate 9-1 and the sixth lateral steel plate 9-2 are provided with wave grains; the wave crests and the wave troughs of the fifth lateral steel plate 9-1 and the sixth lateral steel plate 9-2 extend vertically;
the wave patterns of the fifth lateral steel plate 9-1 and the first lateral steel plate 8-1 are matched, and the wave patterns of the sixth lateral steel plate 9-2 and the second lateral steel plate 8-2 are matched.
The second embodiment has the advantages that: the tip of roof beam sets up the side direction steel sheet, and telescopic side also is provided with the side direction steel sheet, utilizes the wave line to restrict the rotation of roof beam.
In a third embodiment, a beam-column node of a prefabricated concrete structure, as shown in fig. 7, further includes: a seventh bottom steel plate 9-3 and a third bottom steel plate 8-3;
a horizontal seventh bottom steel plate 9-3 is connected between the fifth lateral steel plate 9-1 and the sixth lateral steel plate 9-2, and the fifth lateral steel plate 9-1, the sixth lateral steel plate 9-2 and the seventh bottom steel plate 9-3 form a U-shaped connecting piece 9;
three edges of the seventh bottom steel plate 9-3 are respectively connected with the fifth lateral steel plate 9-1, the sixth lateral steel plate 9-2 and the sleeve;
a third bottom steel plate 8-3 is arranged on the bottom surface of the end part of the beam, and two sides of the third bottom steel plate 8-3 are respectively connected with the first lateral steel plate 8-1 and the second lateral steel plate 8-2;
the upper surface of the seventh bottom steel plate 9-3 is provided with raised grains, and the lower surface of the third bottom steel plate is provided with raised grains matched with the upper surface of the seventh bottom steel plate 9-3;
the extending direction of wave crests and wave troughs of the wave patterns of the seventh bottom steel plate 9-3 is vertical to the fifth lateral steel plate.
As shown in fig. 9, several forms of undulations are shown.
The third embodiment is further improved on the basis of the second embodiment, and has the advantages that: the integrity of the sleeve is improved, and the strength of the beam end is improved; secondly, during construction, the beam is conveniently placed on the seventh bottom steel plate 9-3 of the sleeve;
this scheme is applicable to semi-rigid connection node.
In the fourth embodiment, as shown in fig. 10, a fourth top steel plate is arranged on the top surface of the beam, and the fourth top steel plate is fixedly connected with the first and second lateral steel plates 8-1 and 8-2.
The fourth top steel plate on the top surface of the beam is provided with wave grains, and the direction of the wave grains is the same as that of the third bottom steel plate 8-3;
also includes: the bottom surface of the eighth top side steel plate is provided with wave grains matched with the fourth top side steel plate;
the fifth lateral steel plate 9-1 and the sixth lateral steel plate 9-2 are designed in an L mode, the steel plate further comprises a horizontal plate which extends outwards and is provided with bolt holes, and a plurality of bolt holes are formed in two ends of the eighth top side steel plate.
The construction method comprises the following steps:
first, connecting the upper and lower columns: firstly, preparing a prefabricated assembled concrete column with a connecting plate embedded at the end part, wherein the connecting plate 4-2-1 is embedded at the top end of the assembled concrete column, and the connecting plate 4-1-1 is embedded at the bottom end of the assembled concrete column; then the sleeve is sleeved at the top end of the lower column, and a horizontal plate of the sleeve is connected with a top surface connecting plate of the lower column; then fixing a bolt and a nut between the sleeve and the lower column; then the upper column is inserted into the sleeve, and the horizontal plate of the sleeve is connected with the bottom surface connecting plate of the upper column; then fixing a bolt and a nut between the sleeve and the upper column;
second, beam to sleeve connection: the concrete beam moves downwards towards the U-shaped connecting piece 9 until a third bottom steel plate 8-3 at the bottom of the concrete beam is contacted with a seventh bottom steel plate 9-3, wherein a first lateral steel plate 8-1 and a second lateral steel plate 8-2 at two sides of the concrete beam are respectively matched with the wave patterns of a fifth lateral steel plate 9-1 and a sixth lateral steel plate 9-2 of the U-shaped connecting piece 9 fixed on the side surface of the sleeve 3; after the concrete beam is placed into the U-shaped connecting piece 9, an eighth top steel plate is installed on a fourth top steel plate of the concrete beam; the eighth top steel plate is fixed with the fifth lateral steel plate 9-1 of the U-shaped connecting piece 9 and the horizontal plate of the sixth lateral steel plate 9-2 through bolts and nuts.
In the fourth mode, the concrete beam and the sleeve do not need to be connected by bolts or the use of the bolts can be reduced.
In the third and fourth embodiments, the direction of the wave pattern of the connecting plate of the sleeve and the beam is the key of the design, and the key point of the design is to prevent the beam from being pulled out of the sleeve, so that the wave pattern is preferably designed in the direction of the third and fourth embodiments.
Meanwhile, the connecting part of the sleeve and the beam in the fourth embodiment is better in fact in a square shape.
It should be noted that: as shown in fig. 11, the upper surface of the eighth topside steel plate 9-4 of the fourth embodiment may be provided with a vertical plate, and the side of the sleeve is further provided with 2 parallel vertical plates 9-5, and a slot is formed between the 2 parallel vertical plates 9-5; the vertical plate on the upper surface of the eighth top side steel plate 9-4 and the side surface of the sleeve are also provided with 2 parallel vertical plates 9-5 which are provided with bolt holes,
the eighth top steel plate 9-4 is provided with notches to facilitate the passage of 2 parallel vertical plates 9-5 when moving downwards.
After the eighth top steel plate 9-4 is fixed with the fifth lateral steel plate 9-1 and the sixth lateral steel plate 9-2, the vertical plate on the upper surface of the eighth top steel plate 9-4 is fixed with the 2 parallel vertical plates 9-5 on the side surface of the sleeve through a bolt-nut assembly.
The above embodiment is more reasonable in terms of force.
In the fifth embodiment, as shown in fig. 13, when the prefabricated column is rectangular, the sleeve is also rectangular, wherein the wave crests and the wave troughs of the 2 corresponding surface waves extend vertically, and the wave crests and the wave troughs of the other 2 corresponding surface waves extend horizontally.
As shown in fig. 14, the design of the sleeve 3 is as follows: comprises a sleeve first vertical plate 3-1, a sleeve second vertical plate 3-2, a sleeve third vertical plate 3-3 and a sleeve fourth vertical plate 3-4;
the first vertical plate 3-1 of the sleeve corresponds to the third vertical plate 3-3 of the sleeve, and the wave crests and wave troughs on the inner side of the first vertical plate extend vertically;
the sleeve second vertical plate 3-2 corresponds to the sleeve fourth vertical plate 3-4, and the wave crests and the wave troughs on the inner side of the sleeve second vertical plate extend along the horizontal direction;
oblique folded plates are arranged on two sides of a sleeve first vertical plate 3-1, a sleeve second vertical plate 3-2, a sleeve third vertical plate 3-3 and a sleeve fourth vertical plate 3-4, and bolt holes are formed in the oblique folded plates;
the bolt holes of the oblique folded plates of the sleeve second vertical plate 3-2 and the sleeve fourth vertical plate 3-4 are vertical slotted holes.
Two sides of the horizontal plate of the sleeve 3 are fixedly connected with a first vertical plate 3-1 and a third vertical plate 3-3 of the sleeve in advance by welding or other methods.
Correspondingly, the wave patterns of the steel plates on the side surfaces of the periphery of the upper column and the lower column are also designed as follows: the 2 vertical surfaces and the 2 horizontal surfaces are matched with the wave patterns of a sleeve first vertical plate 3-1, a sleeve second vertical plate 3-2, a sleeve third vertical plate 3-3 and a sleeve fourth vertical plate 3-4.
The construction method comprises the following steps:
first, connecting the upper and lower columns: firstly, preparing a prefabricated assembled concrete column with a connecting plate embedded at the end part, wherein the connecting plate 4-2-1 is embedded at the top end of the assembled concrete column, and the connecting plate 4-1-1 is embedded at the bottom end of the assembled concrete column; then a first vertical plate 3-1 of a sleeve, a third vertical plate 3-3 of the sleeve and a horizontal plate of the sleeve are sleeved at the top end of the lower column, and the horizontal plate of the sleeve is connected with a top surface connecting plate of the lower column;
then the upper column is inserted between a first vertical plate 3-1 and a third vertical plate 3-3 of the sleeve, and a horizontal plate of the sleeve is connected with a bottom surface connecting plate of the upper column;
then, pressing a sleeve second vertical plate 3-2 and a sleeve fourth vertical plate 3-4 to the surfaces of the upper column and the lower column, and then fixedly connecting the sleeve first vertical plate 3-1, the sleeve second vertical plate 3-2, the sleeve third vertical plate 3-3 and the sleeve fourth vertical plate 3-4 in pairs through bolts and nuts;
then fixing a bolt and a nut between the sleeve and the lower column, and fixing the bolt and the nut between the sleeve and the upper column;
second, beam to sleeve connection: the concrete beam moves downwards towards the U-shaped connecting piece 9 until a third bottom steel plate 8-3 at the bottom of the concrete beam is contacted with a seventh bottom steel plate 9-3, wherein a first lateral steel plate 8-1 and a second lateral steel plate 8-2 at two sides of the concrete beam are respectively matched with the wave patterns of a fifth lateral steel plate 9-1 and a sixth lateral steel plate 9-2 of the U-shaped connecting piece 9 fixed on the side surface of the sleeve 3; after the concrete beam is placed into the U-shaped connecting piece 9, an eighth top steel plate is installed on a fourth top steel plate of the concrete beam; the eighth top steel plate is fixed with the fifth lateral steel plate 9-1 of the U-shaped connecting piece 9 and the horizontal plate of the sixth lateral steel plate 9-2 through bolts and nuts.
As can be seen from the third embodiment and the fourth embodiment, the design of the wave patterns is particularly critical, and the fifth embodiment has the advantages that the horizontal wave patterns are arranged (the upper and lower columns can be prevented from being pulled out of the sleeve, and the bending resistance of the node is improved); another significance of the fifth embodiment is that: the wave patterns on the inner surface of the sleeve are designed horizontally, and the upper column and the lower column are difficult to insert (the horizontal wave patterns generate great friction force), so that the fifth embodiment provides a split sleeve design, and how to construct is explained; meanwhile, another technical effect of the fifth embodiment is as follows: the torsional effect of the joint surface of the upper and lower columns is limited (which is important for the cylinder, see example six).
Example six, the study object of example six is a cylinder. As shown in fig. 15, the sleeve is circular and is divided into 4 segments of the same arc-shaped vertical sleeve plates: a sleeve first vertical plate 3-1, a sleeve second vertical plate 3-2, a sleeve third vertical plate 3-3 and a sleeve fourth vertical plate 3-4;
the first vertical plate 3-1 of the sleeve corresponds to the third vertical plate 3-3 of the sleeve, and the wave crests and wave troughs on the inner side of the first vertical plate extend vertically;
the sleeve second vertical plate 3-2 corresponds to the sleeve fourth vertical plate 3-4, and the wave crests and the wave troughs on the inner side of the sleeve second vertical plate extend along the horizontal direction;
two sides of the horizontal plate of the sleeve 3 are fixedly connected with a first vertical plate 3-1 and a third vertical plate 3-3 of the sleeve in advance by welding or other methods.
Connecting plates are arranged on two sides of a first sleeve vertical plate 3-1, a second sleeve vertical plate 3-2, a third sleeve vertical plate 3-3 and a fourth sleeve vertical plate 3-4, bolt holes are formed in the connecting plates, and the first sleeve vertical plate 3-1, the second sleeve vertical plate 3-2, the third sleeve vertical plate 3-3 and the fourth sleeve vertical plate 3-4 are connected into a whole through folded plates and bolts and nuts in sequence;
in addition, the horizontal plate of the sleeve is divided into at least 2 areas, and the directions of the raised grains on the adjacent areas are set to be mutually vertical; the design not only can ensure that the connecting surface of the upper column and the lower column can resist shearing force in all directions, but also can improve the torsion resistance of the connecting surface of the upper column and the lower column.
The seventh embodiment, the inner surface of the sleeve of the seventh embodiment is horizontally corrugated, and the solution of the seventh embodiment is mainly applicable to the joints of the beams connected around the columns.
As shown in fig. 16-17, the sleeve is made of: a sleeve first vertical plate 3-1, a sleeve second vertical plate 3-2, a sleeve third vertical plate 3-3 and a sleeve fourth vertical plate 3-4;
wave crests and wave troughs on the inner sides of a first vertical plate 3-1, a second vertical plate 3-2, a third vertical plate 3-3 and a fourth vertical plate 3-4 of the sleeve extend along the horizontal direction;
the edge part of the horizontal plate of the sleeve is provided with a plurality of protruding end plates, and bolt holes are arranged on the end plates; sockets matched with the end plates are respectively arranged on the sleeve first vertical plate 3-1, the sleeve second vertical plate 3-2, the sleeve third vertical plate 3-3 and the sleeve fourth vertical plate 3-4.
The construction method comprises the following steps:
first, connecting the upper and lower columns: firstly, preparing a prefabricated assembled concrete column with a connecting plate embedded at the end part, wherein the connecting plate 4-2-1 is embedded at the top end of the assembled concrete column, and the connecting plate 4-1-1 is embedded at the bottom end of the assembled concrete column; then pressing the horizontal plate of the sleeve on the top surface connecting plate of the lower column;
then the upper column is moved, so that the bottom surface connecting plate of the upper column is pressed on the horizontal plate of the sleeve;
then, pressing a first sleeve vertical plate 3-1, a second sleeve vertical plate 3-2, a third sleeve vertical plate 3-3 and a fourth sleeve vertical plate 3-4 to the surfaces of the upper column and the lower column to enable the sockets of the first sleeve vertical plate 3-1, the second sleeve vertical plate 3-2, the third sleeve vertical plate 3-3 and the fourth sleeve vertical plate 3-4 to be aligned with the end plates protruding from the edge of the horizontal plate; bolt nuts are then installed in the bolt holes of the end plates.
Then fixing a bolt and a nut between the sleeve and the lower column, and fixing the bolt and the nut between the sleeve and the upper column;
second, beam to sleeve connection: the concrete beam moves downwards towards the U-shaped connecting piece 9 until a third bottom steel plate 8-3 at the bottom of the concrete beam is contacted with a seventh bottom steel plate 9-3, wherein a first lateral steel plate 8-1 and a second lateral steel plate 8-2 at two sides of the concrete beam are respectively matched with the wave patterns of a fifth lateral steel plate 9-1 and a sixth lateral steel plate 9-2 of the U-shaped connecting piece 9 fixed on the side surface of the sleeve 3; after the concrete beam is placed into the U-shaped connecting piece 9, an eighth top steel plate is installed on a fourth top steel plate of the concrete beam; the eighth top steel plate is fixed with the fifth lateral steel plate 9-1 of the U-shaped connecting piece 9 and the horizontal plate of the sixth lateral steel plate 9-2 through bolts and nuts.
The connection mode of the horizontal plate and the vertical plate of the sleeve in the seventh embodiment is also suitable for the connection between the second vertical plate 3-2 and the fourth vertical plate 3-4 of the sleeve and the horizontal plate of the sleeve in the fifth and sixth embodiments; the difference is that a plurality of protruding end plates are arranged on the horizontal plate corresponding to the edges of the sleeve second vertical plate 3-2 and the sleeve fourth vertical plate 3-4.
In the eighth embodiment, as shown in fig. 18, the dampers 10 are fixedly connected to the upper surfaces of the upper column and the beam, and the lower surfaces of the lower column and the beam.
As shown in fig. 18, the damper 10 includes: the damper comprises a damper first connecting plate 10-1, a damper second connecting plate 10-2, a damper first spring 10-3, a damper second spring 10-4, an internal wavy soft steel cylinder 10-5 and external wavy soft steel 10-6;
two end parts of the internal wavy mild steel cylinder 10-5 are provided with end plates to seal the internal wavy mild steel cylinder, and the side surface of the internal wavy mild steel cylinder is wavy mild steel;
a connecting seat is arranged on the sleeve 3, and a first damper connecting plate 10-1 of the damper 10 is connected with the connecting seat of the sleeve 3;
connecting seats are also arranged on the third bottom surface steel plate 8-3 on the bottom surface of the beam and the fourth top surface steel plate on the top surface of the beam, a second damper connecting plate 10-2 is connected with the connecting seats of the third bottom surface steel plate 8-3 or the fourth top surface steel plate of the beam, and end plates at two ends of the inner wavy soft steel cylinder 10-5 are respectively connected with a first damper spring 10-3 and a second damper spring 10-4;
the other end of the damper first spring 10-3 is connected with the damper first connecting plate 10-1;
the other end of the second spring 10-4 of the damper is connected with a second connecting plate 10-2 of the damper;
a plurality of external wavy mild steels 10-6 are uniformly arranged outside the internal wavy mild steel cylinder 10-5 in the axial direction; two ends of the external wavy mild steel 10-6 are respectively connected with the first damper connecting plate 10-1 and the second damper connecting plate 10-2.
The bus of the internal wavy soft steel cylinder 10-5 is a wavy line, and the length direction of the external wavy soft steel cylinder 10-6 is a wavy line.
The connecting means of the damper and the fourth top surface steel plate of the sleeve and the beam top surface are two types: firstly, the hinge joint is adopted; secondly, all adopt the rigid coupling.
When the hinges are adopted, the damper only axially deforms, and energy is consumed through axial tension and compression deformation of the inner wavy soft steel cylinder 10-5, the outer wavy soft steel 10-6 and the spring.
When the fastening is used, the damper deforms in shear in addition to axial deformation, and for shear deformation, the damper 10 consumes energy through bending deformation of the outer wavy mild steel 10-6.
In the ninth embodiment, further, in order to facilitate the installation of the external wave-shaped mild steel 10-6 and increase the energy consumption effect, the external wave-shaped mild steel 10-6 can be cylindrical to form an external wave-shaped mild steel cylinder 10-7.
The shapes of the first connecting plate 10-1 of the damper, the second connecting plate 10-2 of the damper, the inner wave-shaped soft steel cylinder 10-5 and the outer wave-shaped soft steel cylinder 10-7 can be selected according to actual needs, and as shown in fig. 18-19, the shapes can be rectangular or circular.
The design of the double-layer wave-shaped soft steel cylinder is adopted, and one problem involved in the design is how to install the double-layer wave-shaped soft steel cylinder.
The first connecting plate 10-1 of the damper comprises a connecting seat connecting plate 10-1-1 and an external wavy soft steel cylinder connecting plate 10-1-2;
the second connecting plate 10-2 of the damper comprises a connecting seat connecting plate 10-1-1 and an external wavy soft steel cylinder connecting plate 10-1-2;
the connecting seat connecting plate is used for connecting the connecting seats of the sleeve and the beam;
the external wavy soft steel cylinder connecting plate is arranged inside the external wavy soft steel cylinder 10-7 and used for installing and fixing the external wavy soft steel cylinder 10-7, and the external wavy soft steel cylinder connecting plate and the external wavy soft steel cylinder are connected through bolts.
The axes of the external wavy soft steel cylinder 10-7, the internal wavy soft steel cylinder 10-5, the first damper spring 10-3 and the second damper spring 10-4 are coincided.
It should be noted that the technical features of the technical solutions of the first to seventh embodiments can be applied in a cross manner.
It should be noted that the raised grains of the first horizontal plate, the second horizontal plate, the third horizontal plate, the fourth horizontal plate, the inner surface of the sleeve 3, the U-shaped connecting member, and the eighth top steel plate are insections, and the raised grains of the concrete column and the concrete beam that are matched with the above-mentioned components are insections.
The above-mentioned embodiments are only for convenience of description, and are not intended to limit the present invention in any way, and those skilled in the art will understand that the technical features of the present invention can be modified or changed by other equivalent embodiments without departing from the scope of the present invention.
Claims (3)
1. A construction method of an assembly type concrete beam column connecting joint is characterized by comprising the following construction steps:
firstly, the concrete beam moves downwards towards a U-shaped connecting piece (9) of the sleeve until a third bottom steel plate (8-3) at the bottom of the concrete beam is contacted with a seventh bottom steel plate (9-3), wherein a first lateral steel plate (8-1) and a second lateral steel plate (8-2) at two sides of the concrete beam are respectively matched with the wave patterns of a fifth lateral steel plate (9-1) and a sixth lateral steel plate (9-2) of the U-shaped connecting piece (9) fixed at the side surface of the sleeve (3);
secondly, after the concrete beam is placed into the U-shaped connecting piece (9), an eighth top steel plate is installed on a fourth top steel plate of the concrete beam; the eighth top side steel plate is fixed with a fifth lateral steel plate (9-1) of the U-shaped connecting piece (9) and a horizontal plate of a sixth lateral steel plate (9-2) through bolts and nuts;
an assembled concrete beam column connected node, include: columns, beams (7); the columns are connected with the beams through sleeves (3)
Wherein, the side of the beam (7) is fixed with a first and a second lateral steel plates (8-1, 8-2);
fixed with on the vertical board on the sleeve: a fifth lateral steel plate (9-1) and a sixth lateral steel plate (9-2); the fifth lateral steel plate (9-1) is parallel to the sixth lateral steel plate (9-2);
the outer sides of the first lateral steel plate and the second lateral steel plate are provided with wave grains, and the inner sides of the fifth lateral steel plate (9-1) and the sixth lateral steel plate (9-2) are provided with wave grains; the wave crests and the wave troughs of the fifth lateral steel plate (9-1) and the sixth lateral steel plate (9-2) extend along the vertical direction;
the fifth lateral steel plate (9-1) is matched with the wave patterns of the first lateral steel plate (8-1), and the sixth lateral steel plate (9-2) is matched with the wave patterns of the second lateral steel plate (8-2);
wherein, still include: a seventh bottom steel plate (9-3) and a third bottom steel plate (8-3);
a horizontal seventh bottom steel plate (9-3) is connected between the fifth lateral steel plate (9-1) and the sixth lateral steel plate (9-2), the fifth lateral steel plate (9-1), the sixth lateral steel plate (9-2) and the seventh bottom steel plate (9-3) jointly form a U-shaped connecting piece (9), and three edges of the seventh bottom steel plate (9-3) are respectively connected with the fifth lateral steel plate (9-1), the sixth lateral steel plate (9-2) and the sleeve;
a third bottom steel plate (8-3) is arranged on the bottom surface of the end part of the beam, and two sides of the third bottom steel plate (8-3) are respectively fixedly connected with the first lateral steel plate (8-1) and the second lateral steel plate (8-2);
the upper surface of the seventh bottom steel plate (9-3) is provided with raised grains, and the lower surface of the third bottom steel plate is provided with raised grains matched with the upper surface of the seventh bottom steel plate (9-3);
the extending direction of wave crests and wave troughs of the wave patterns of the seventh bottom surface steel plate (9-3) is vertical to the fifth lateral steel plate;
a fourth top steel plate is arranged on the top surface of the beam and fixedly connected with the first and second lateral steel plates (8-1, 8-2);
the fourth top steel plate on the top surface of the beam is provided with wave grains, and the direction of the wave grains is the same as that of the third bottom steel plate (8-3);
also includes: the bottom surface of the eighth top side steel plate is provided with wave grains matched with the fourth top side steel plate (9-4);
the fifth lateral steel plate (9-1) and the sixth lateral steel plate (9-2) are designed in an L mode, the steel plate further comprises a horizontal plate which extends outwards and is provided with bolt holes, and a plurality of bolt holes are formed in two ends of the eighth top side steel plate.
2. The construction method of an assembled concrete beam-column connection node according to claim 1, wherein vertical plates are arranged on the upper surfaces of the eighth top steel plates (9-4), 2 parallel vertical plates (9-5) are further arranged on the side surfaces of the sleeve, and a slot is formed between the 2 parallel vertical plates (9-5); the vertical plate on the upper surface of the eighth top side steel plate (9-4) and the side surface of the sleeve are also provided with 2 parallel vertical plates (9-5) which are provided with bolt holes;
the eighth top steel plate (9-4) is provided with a notch so as to facilitate the passage of 2 parallel vertical plates (9-5) when moving downwards;
after the eighth top steel plate (9-4) is fixed with the fifth lateral steel plate (9-1) and the sixth lateral steel plate (9-2), the vertical plate on the upper surface of the eighth top steel plate (9-4) and the 2 parallel vertical plates (9-5) on the side surface of the sleeve are also fixed together through a bolt-nut assembly.
3. A method of constructing a fabricated concrete beam-column connection node according to claim 1 or 2, wherein the column is circular or square.
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| CN110144811B (en) * | 2019-05-28 | 2020-12-22 | 杜东坡 | Unbalanced torsion-resistant and overturn-resistant structure of single-column pier of curved beam bridge and construction method of unbalanced torsion-resistant and overturn-resistant structure |
| CN110258792B (en) * | 2019-06-29 | 2020-12-08 | 江西建邦建设集团有限公司 | Fabricated beam, fabricated double-spliced T-shaped beam and construction method thereof |
| CN112227540B (en) * | 2020-10-23 | 2021-08-24 | 温州大学瓯江学院 | Assembled building beam column node |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105839846A (en) * | 2016-03-22 | 2016-08-10 | 哈尔滨工业大学 | Prefabricated reinforced concrete composite beam |
| CN106368315A (en) * | 2016-10-14 | 2017-02-01 | 天津大学 | Assembly type wood frame structure beam-column joint with sleeve |
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| JP2009091844A (en) * | 2007-10-10 | 2009-04-30 | Takenaka Komuten Co Ltd | Column-beam joint method and column-beam joint structure |
| CN101397821A (en) * | 2008-09-26 | 2009-04-01 | 沈英 | Combined hanger and ceramic plate curtain wall mounting structure by employing the same |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105839846A (en) * | 2016-03-22 | 2016-08-10 | 哈尔滨工业大学 | Prefabricated reinforced concrete composite beam |
| CN106368315A (en) * | 2016-10-14 | 2017-02-01 | 天津大学 | Assembly type wood frame structure beam-column joint with sleeve |
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