CN110565797A - hidden corbel type beam-column joint connection method for shock absorption - Google Patents
hidden corbel type beam-column joint connection method for shock absorption Download PDFInfo
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- CN110565797A CN110565797A CN201910811565.0A CN201910811565A CN110565797A CN 110565797 A CN110565797 A CN 110565797A CN 201910811565 A CN201910811565 A CN 201910811565A CN 110565797 A CN110565797 A CN 110565797A
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- 238000000034 method Methods 0.000 title claims abstract description 25
- 230000035939 shock Effects 0.000 title claims abstract description 18
- 238000010521 absorption reaction Methods 0.000 title claims abstract description 15
- 239000004567 concrete Substances 0.000 claims abstract description 33
- 238000004519 manufacturing process Methods 0.000 claims abstract description 8
- 229910000831 Steel Inorganic materials 0.000 claims description 37
- 239000010959 steel Substances 0.000 claims description 37
- 239000002002 slurry Substances 0.000 claims description 18
- 238000004873 anchoring Methods 0.000 claims description 10
- 239000011440 grout Substances 0.000 claims description 10
- 238000009434 installation Methods 0.000 claims description 9
- 238000003780 insertion Methods 0.000 claims description 7
- 230000037431 insertion Effects 0.000 claims description 7
- 239000004570 mortar (masonry) Substances 0.000 claims description 7
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims description 6
- 210000002435 tendon Anatomy 0.000 claims description 6
- 238000003466 welding Methods 0.000 claims description 6
- 238000013016 damping Methods 0.000 claims description 4
- 238000009417 prefabrication Methods 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 239000012466 permeate Substances 0.000 claims description 3
- 238000010276 construction Methods 0.000 abstract description 11
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000004904 shortening Methods 0.000 abstract description 2
- 230000007547 defect Effects 0.000 description 2
- 239000011150 reinforced concrete Substances 0.000 description 2
- 230000003796 beauty Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000021715 photosynthesis, light harvesting Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Classifications
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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
-
- 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
-
- 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
- E04B1/41—Connecting devices specially adapted for embedding in concrete or masonry
- E04B1/4114—Elements with sockets
- E04B1/4135—Elements with sockets receiving removal bolt heads
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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
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/92—Protection against other undesired influences or dangers
- E04B1/98—Protection against other undesired influences or dangers against vibrations or shocks; against mechanical destruction, e.g. by air-raids
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H9/00—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate
- E04H9/02—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate withstanding earthquake or sinking of ground
- E04H9/021—Bearing, supporting or connecting constructions specially adapted for such buildings
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H9/00—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate
- E04H9/02—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate withstanding earthquake or sinking of ground
- E04H9/025—Structures with concrete columns
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Joining Of Building Structures In Genera (AREA)
Abstract
The invention relates to the technical field of construction of assembled beam-column joints, and particularly discloses a hidden corbel type beam-column joint connection method for shock absorption, which comprises the following steps: (1) manufacturing a prefabricated column; (2) manufacturing a precast beam; (3) assembling the beam column; (4) fixing the vertical node; (5) fixing a transverse node; (6) and filling the gap and the gap. The beam-column joint connection adopts the hidden corbels, so that the attractiveness of a building is ensured, and the overall stability of the beam-column joint is improved; and the beam-column joint connection of the invention adopts dry-wet connection combination, thereby avoiding the phenomena of weak connection and unstable performance between the beam columns caused by large-scale secondary concrete pouring on site, reducing the workload of on-site wet operation, facilitating construction and being beneficial to shortening the construction period.
Description
Technical Field
the invention relates to the technical field of construction of assembled beam-column joints, in particular to a connecting method of hidden corbel type beam-column joints for shock absorption.
background
the assembly type is a new emerging building production mode, which is to prefabricate the components needed for building the house in the factory in advance and then splice the prefabricate components on the working site. Compared with the traditional cast-in-place concrete production mode, the assembly type building production mode reduces the workload of wet work of a construction site, and saves the construction period and building materials for a project. The construction technology in the aspect of beam column node connection mode of the existing fabricated building still has the following defects:
(1) The wet connection at the beam column joint requires on-site large-scale wet operation, the structure is complex, the construction process is complicated, and the surrounding environment is easily polluted in the construction process.
(2) when the prefabricated building nodes are connected in a dry mode, cast-in-place concrete is not needed, but the building has low ductility and shock resistance.
(3) The use of building space and the aesthetic appearance can be influenced by the connection mode of the open bracket.
Disclosure of Invention
the invention aims to provide a hidden corbel type beam-column joint connecting method for shock absorption aiming at the defects of the existing assembly type beam-column joint, so as to solve the problems of large wet operation amount, insufficient shock resistance, insufficient building appearance and the like.
in order to achieve the purpose, the invention provides the following technical scheme: a hidden corbel type beam-column joint connecting method for shock absorption comprises a prefabricated column, a T-shaped steel plate, a hidden corbel and a prefabricated beam, wherein the T-shaped steel plate comprises a vertical connecting plate and an inserting plate; the connection method comprises the following steps:
(1) The prefabricated column is manufactured: embedding a vertical connecting plate of a T-shaped steel plate in the prefabricated column, and enabling an inserting plate to horizontally extend out of the prefabricated column from the side surface of the prefabricated column; integrally prefabricating a prefabricated column and a dark bracket, wherein the dark bracket is positioned below an insertion plate, one surface of the dark bracket, which is far away from the prefabricated column, is provided with an inclined surface, and a triangular splicing plate is arranged on the inclined surface; an inserting plate bolt hole and a bracket bolt hole which penetrate through the inserting plate and the hidden bracket from top to bottom are reserved on the inserting plate and the hidden bracket respectively, and a triangular splicing plate bolt hole which penetrates through the triangular splicing plate from left to right is reserved on the triangular splicing plate;
(2) manufacturing a precast beam: a notch matched with the shape of the hidden bracket is arranged below one side of the precast beam close to the precast column, so that the lower surface of the precast beam is flush with the lower surface of the hidden bracket when the precast beam is connected to the precast column; a square groove matched with the inserting plate is formed in one side face, with the gap, of the precast beam, and a triangular groove matched with the triangular splicing plate is formed inwards in the contact surface of the precast beam and the inclined face of the hidden bracket; reserving beam high-strength bolt holes corresponding to the insert plate bolt holes in the height direction of the precast beam, and reserving beam grouting bolt holes corresponding to the triangular splice plate bolt holes in the width direction of the precast beam;
(3) Assembling the beam column: inserting the inserting plates into the square grooves, and inserting the triangular splicing plates into the triangular grooves to complete beam column splicing;
(4) fixing the vertical node: the high-strength bolts sequentially penetrate through the beam high-strength bolt holes, the inserting plate bolt holes and the bracket bolt holes to finish the vertical anchoring connection of the prefabricated beam, the inserting plate and the hidden bracket;
(5) fixing transverse nodes: the grouting bolt sequentially penetrates through the beam grouting bolt hole and the triangular splicing plate bolt hole to complete transverse anchoring connection of the precast beam and the triangular splicing plate; the grouting bolt comprises a split nut and a hollow screw, the two ends of the hollow screw are respectively provided with a grouting hole and a grout outlet, and the surface of the hollow screw is provided with a plurality of grout seepage holes; high-strength non-shrinkage slurry is injected from the grouting hole, and the slurry permeates into a gap between the grouting bolt and the hole from the slurry seepage hole to fill the gap and the hollow screw.
Furthermore, vertical stress bars and stirrups are arranged in the prefabricated columns, and the stirrups are used for fixing the vertical stress bars; the step (1) comprises the following specific steps:
(1-1) arranging reinforcing steel bars: laying vertical stressed tendons in the prefabricated column according to design requirements, and fixing the vertical stressed tendons by using stirrups; laying steel bars in the hidden brackets according to design requirements;
(1-2) steel plate welding: respectively welding a vertical connecting plate of the T-shaped steel plate with a vertical stress rib and a stirrup of the column;
(1-3) supporting a template: erecting a template and a reserved hole according to the shapes of the prefabricated column and the hidden bracket;
(1-4) concrete pouring: and pouring concrete into the prefabricated column and the hidden bracket, and embedding the T-shaped steel plate in the prefabricated column to complete the integral prefabrication of the prefabricated column and the hidden bracket.
Further, the step (2) comprises the following specific steps:
(2-1) arranging reinforcing steel bars: binding steel bars according to design requirements;
(2-2) supporting a template: erecting a template and a reserved hole according to the shape of the precast beam;
(2-3) concrete pouring: and pouring concrete to the precast beam.
furthermore, the upper surface of the hidden bracket is provided with a rubber gasket, and the rubber gasket is provided with a rubber gasket bolt hole corresponding to the bracket bolt hole.
Further, the specific steps of the step (3) are as follows:
(3-1) gasket installation: installing a rubber gasket at the contact position of the upper surface of the hidden bracket and the precast beam;
(3-2) hoisting the precast beam: hoisting the precast beam, wherein the square groove of the precast beam is aligned to the insertion plate at the front end of the T-shaped steel plate; the triangular groove of the precast beam is aligned with the triangular splicing plate on the hidden bracket;
(3-3) beam column splicing: and moving the precast beam to splice the insertion plate and the square groove, and splice the triangular groove and the triangular splicing plate.
Further, the trapezoidal breach of bracket has been seted up along the bolt hole to the hidden bracket lower surface, the trapezoidal breach of roof beam has been seted up along the bolt hole to precast beam upper surface, be equipped with the rectangle bearing plate in the trapezoidal breach of bracket and the trapezoidal breach of roof beam respectively, rectangle bearing plate bolt hole has been seted up on the rectangle bearing plate.
further, the specific steps of the step (4) are as follows:
(4-1) installing a rectangular bearing plate: respectively installing rectangular bearing plates at the beam trapezoidal notch and the bracket trapezoidal notch;
(4-2) high-strength bolt installation: inserting a high-strength bolt from the upper part of a rectangular bearing plate on a beam trapezoidal notch, and sequentially penetrating through a beam high-strength bolt hole, an inserting plate bolt hole, a beam high-strength bolt hole, a rubber gasket bolt hole, a bracket bolt hole and another rectangular bearing plate on the lower surface of a hidden bracket;
(4-3) high-strength bolt anchoring: and fixing the nut of the high-strength bolt, and rotating the nut until the nut cannot be screwed.
Furthermore, the two sides of the precast beam are respectively provided with a triangular notch corresponding to the triangular groove, a triangular bearing plate is arranged in the triangular notch, and a triangular bearing plate bolt hole for a grouting bolt to pass through is arranged on the triangular bearing plate.
further, the step (5) comprises the following specific steps:
(5-1) mounting a triangular bearing plate: respectively installing two triangular bearing plates at triangular notches at two sides of the precast beam;
(5-2) grouting bolt installation: inserting a hollow screw rod from the front of the triangular bearing plate, and sequentially passing through a triangular bearing plate bolt hole, a beam grouting bolt hole, a triangular splicing plate bolt hole, a beam grouting bolt hole and a triangular bearing plate bolt hole on the other side of the precast beam;
(5-3) grouting bolt anchoring: the opposite-pulling nuts at two ends of the grouting bolt are simultaneously rotated by using a spanner until the opposite-pulling nuts cannot be screwed;
(5-4) hollow screw grouting: and (3) injecting high-strength non-shrinkage slurry from the grouting hole, enabling the slurry to penetrate into a gap between the grouting bolt and the hole from the slurry seepage hole, filling the gap and the hollow screw, and stopping grouting when the slurry overflows from the slurry outlet hole.
Further, the connection method further comprises the following step (6) of filling gaps and gaps:
(6-1) gap filling: filling the trapezoidal gap of the beam, the trapezoidal gap of the bracket or the triangular gap with mortar, and covering the bolt;
(6-2) gap filling: and filling the gap between the precast beam and the precast column with mortar to form a filling layer.
compared with the prior art, the invention has the advantages that:
1. The beam-column joint connection of the invention adopts dry-wet connection combination, thereby avoiding the phenomena of weak connection and unstable performance between the beam columns caused by large-scale secondary concrete pouring on site, reducing the workload of on-site wet operation, facilitating construction and being beneficial to shortening the construction period.
2. According to the invention, the rubber pads are arranged at the lap joint of the precast beam and the hidden bracket, the grouting bolt is arranged at the splicing position of the triangular groove, and the mortar layer is poured between the precast beam and the precast column, so that the ductility and the shock resistance of the beam-column joint can be effectively improved.
3. The hidden corbel and the pre-buried T-shaped steel plate are used as shear resistant pieces at the same time, so that the shear strength of the beam-column joint can be effectively increased.
4. the beam-column joint connection adopts the hidden corbels, which not only ensures the beauty of the building, but also improves the integral stability of the beam-column joint.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
fig. 2 is a schematic sectional view of the overall structure of the present invention.
FIG. 3 is a schematic diagram of the structure of a precast column of the present invention.
FIG. 4 is a schematic structural view of a T-shaped steel plate according to the present invention.
fig. 5 is a schematic structural view of the high-strength bolt of the present invention.
Fig. 6 is a schematic structural view of the grouting bolt of the present invention.
fig. 7 is a schematic structural view of the precast beam of the present invention.
FIG. 8 is a schematic view of the structure of the dark corbel of the present invention.
in the figure: 1. prefabricating a column 11, vertical stress bars 12 and stirrups;
2. the steel plate inserting device comprises a T-shaped steel plate 21, a vertical connecting plate 22, an inserting plate 23 and an inserting plate bolt hole;
3. high-strength bolts 31, screws 32, nuts 33, round gaskets 34 and nuts;
4. grouting bolts 41, split nuts 42, hollow screws 43, slurry seepage holes 44, grouting holes 45 and slurry outlet holes;
5. The method comprises the following steps of prefabricating a beam, 51, a concrete beam, 52, a square groove, 53, a beam high-strength bolt hole, 54, a beam trapezoidal notch, 55, a triangular groove, 56, a beam grouting bolt hole, 57 and a triangular notch;
6. the hidden bracket 61, the concrete bracket 62, the bracket bolt hole 63, the triangular splice plate 64, the splice plate bolt hole 65 and the bracket trapezoid notch;
7. A triangular bearing plate;
8. A rectangular bearing plate;
9. A rubber gasket;
10. And (5) filling the layer.
Detailed Description
in order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further specifically described below by way of embodiments in combination with the accompanying drawings.
Example (b): referring to the figures 1-8, the parts related to the connecting method of the hidden corbel type beam column node for shock absorption comprise a prefabricated column 1, a T-shaped steel plate 2, a hidden corbel 6, a prefabricated beam 5, a rubber gasket 9, a rectangular bearing plate 8 and a triangular bearing plate 7, wherein the T-shaped steel plate 2 and the hidden corbel 6 are fixedly arranged on one side of the prefabricated column 1 from top to bottom respectively, the prefabricated beam 5 is connected with the prefabricated column 1 through the T-shaped steel plate 2 and the hidden corbel 6 respectively, a notch matched with the shape of the hidden corbel 6 is arranged below one side of the prefabricated beam 5 close to the prefabricated column, the hidden corbel 6 is embedded into the notch below the prefabricated beam 5 during connection, the purpose of hiding the hidden corbel 6 after connection is achieved, and the beam column node is more attractive in appearance.
The prefabricated column 1 and the hidden bracket 6 are both of reinforced concrete structures, and the prefabricated column 1 and the hidden bracket 6 are integrally cast during prefabrication; four vertical stress bars 11 and a plurality of stirrups 12 for fixing the vertical stress bars 11 are arranged in the prefabricated column 1.
the T-shaped steel plate 2 comprises a vertical connecting plate 21 and an inserting plate 22, the vertical connecting plate 21 is welded on the vertical stress bar 11 and the hoop bar 12 and is embedded in the prefabricated column 1 during pouring, and the inserting plate 22 horizontally extends out of one side surface of the prefabricated column 1; the vertical connecting plate 21 is a rectangular steel plate, the width of the vertical connecting plate is 2/3 of the width of the prefabricated column 1, and the height of the vertical connecting plate is 1/2 of the height of the prefabricated beam 5; the inserting plate 22 is a rectangular steel plate, the width of the inserting plate is 2/3 of the width of the prefabricated column 1, the length and the width of the inserting plate are the same, and the thickness of the inserting plate is 1/8 of the height of the prefabricated beam 5; the surface of the insert plate 22 is provided with two insert plate bolt holes 23, and the insert plate bolt holes 23 are evenly distributed on the surface of the insert plate 22.
the hidden bracket 6 comprises a concrete bracket 61 and a triangular splicing plate 63, the concrete bracket 61 is a straight quadrangular prism with a right trapezoid section, one surface of the concrete bracket, which is far away from the precast column 1, is an inclined surface, and the triangular splicing plate 63 is fixedly arranged on the inclined surface; a bracket bolt hole 62 is arranged on the concrete bracket 61 in a penetrating manner along the height direction, and the position and the size of the bracket bolt hole 62 correspond to those of the inserting plate bolt hole 23; a bracket trapezoid notch 65 is formed in the bottom of the concrete bracket 61, the width of the bracket trapezoid notch 65 is not larger than that of the inserting plate 22, and the position of the bracket trapezoid notch 65 is matched with the bracket bolt hole 62 and used for placing the rectangular bearing plate 8; the triangular splice plate 63 is an isosceles right triangular prism, and six splice plate bolt holes 64 which are uniformly distributed in a triangular shape are arranged on the triangular splice plate.
the precast beam 5 is of a reinforced concrete structure and comprises a concrete beam 51, and one end of the concrete beam 51, which is close to the precast column 1, is provided with a notch matched with the shape and the size of the hidden bracket 6; one end of the concrete beam 51 with the notch is provided with a square groove 52 matched with the inserting plate 22, and the inserting plate 22 is inserted into the square groove for splicing the concrete beam 51 and the T-shaped steel plate 2; two beam high-strength bolt holes 53 are formed in the concrete beam 51 in the height direction, and the positions and the sizes of the beam high-strength bolt holes 53 correspond to those of the plate inserting bolt holes 23; the upper surface of the concrete beam 51 is provided with a beam trapezoidal notch 54, the size of the beam trapezoidal notch 54 is the same as that of the bracket trapezoidal notch 65, and the position of the beam trapezoidal notch 54 corresponds to the beam high-strength bolt hole 53 and is used for placing the rectangular bearing plate 8; the contact surface of the inclined surface of the concrete beam 51 and the inclined surface of the hidden bracket 6 are inwards recessed to form a triangular groove 55, and the shape and the size of the triangular groove 55 are matched with those of a triangular splicing plate 63; six beam grouting bolt holes 56 penetrate through the concrete beam 51 along the width direction, and the positions of the beam grouting bolt holes 56 are matched with the splice plate bolt holes 64; triangular notches 57 corresponding to the positions and the sizes of the triangular grooves 55 are formed in the two sides of the concrete beam 51 and used for placing the triangular bearing plates 7.
The rectangular bearing plates 8 are rectangular steel plates, the size of each rectangular bearing plate is matched with the beam trapezoidal notch 54 and the bracket trapezoidal notch 65, the number of the rectangular bearing plates is two, two rectangular bearing plate bolt holes are formed in each rectangular bearing plate, and the positions and the sizes of the rectangular bearing plate bolt holes correspond to those of the plate inserting bolt holes 23.
the triangular bearing plates 7 are triangular steel plates, six triangular bearing plate bolt holes which are uniformly distributed in a triangular shape are formed in the triangular bearing plates, the positions and the sizes of the triangular bearing plate bolt holes are matched with those of the beam grouting bolt holes 56, the two triangular bearing plates 7 are arranged at triangular notches 57 on two sides of the precast beam 5, and the outer layer of concrete is protected from being damaged.
The rubber gasket 9 is a rectangular gasket, the width of the rubber gasket is the same as that of the precast beam 5, the length of the rubber gasket is the same as that of the upper surface of the hidden bracket 6, and two holes matched with the inserting plate bolt holes 23 are formed in the rubber gasket; the rubber gasket 9 is installed at the upper surface of the hidden corbel 6 to increase the energy dissipation and shock absorption capacity between the precast beam 5 and the hidden corbel 6.
The invention discloses a method for connecting joints of hidden corbel type beams and columns for damping, which comprises the following steps:
(1) The prefabricated column is manufactured:
(1-1) arranging reinforcing steel bars: laying vertical stress bars 11 in the prefabricated column 1 according to design requirements, and fixing the vertical stress bars by using stirrups 12; and arranging the steel bars in the hidden brackets 6 according to the design requirement.
(1-2) steel plate welding: and respectively welding the vertical connecting plate 21 of the T-shaped steel plate 2 with the column vertical stress rib 11 and the stirrup 12.
(1-3) supporting a template: and supporting a template and reserving holes according to the shapes of the prefabricated column 1 and the hidden bracket 6.
(1-4) concrete pouring: and pouring concrete into the prefabricated column 1 and the hidden bracket 6, and embedding the T-shaped steel plate 2 into the prefabricated column 1 to complete the integral prefabrication of the prefabricated column 1 and the hidden bracket 5.
(2) Manufacturing a precast beam:
(2-1) arranging reinforcing steel bars: and (5) binding the steel bars according to the design requirement.
(2-2) supporting a template: and supporting a template and a reserved hole according to the shape of the precast beam 5.
(2-3) concrete pouring: and pouring concrete on the precast beam 5.
(3) Assembling the beam column:
(3-1) gasket installation: a rubber gasket 9 is installed where the upper surface of the dark corbel 6 contacts the precast girders 5.
(3-2) hoisting the precast beam: hoisting the precast beam 5, wherein the square groove 52 of the precast beam 5 is aligned with the insertion plate 22 at the front end of the T-shaped steel plate 2; the triangular groove 55 of the precast beam 5 is aligned with the triangular splice plate 63 on the dark corbel 6.
(3-3) beam column splicing: the precast girders 5 are moved so that the insert plates 22 and the square grooves 52 are spliced, and the triangular grooves 55 and the triangular splice plates 63 are spliced.
(4) fixing the vertical node:
(4-1) installing a rectangular bearing plate: the rectangular bearing plates 8 are installed at the girder trapezoidal notches 54 and the corbel trapezoidal notches 65, respectively.
(4-2) high-strength bolt installation: the screw 31 is inserted from above the rectangular bearing plate 8 on the beam trapezoidal notch 54, and sequentially passes through the beam high-strength bolt hole 53, the inserted plate bolt hole 23, the beam high-strength bolt hole 53, the rubber gasket 9, the bracket bolt hole 62 and the other rectangular bearing plate 8 on the lower surface of the hidden bracket.
(4-3) high-strength bolt anchoring: the nut 32 of the high-strength bolt 3 is fixed and the nut 34 is rotated until the nut cannot be screwed.
(5) fixing transverse nodes:
(5-1) mounting a triangular bearing plate: two triangular bearing plates 7 are respectively arranged at the triangular notches 57 at the two sides of the precast beam 5.
(5-2) grouting bolt installation: the hollow screw 42 is inserted from the front of the triangular bearing plate 7 and sequentially passes through the beam grouting bolt hole 53, the triangular splice plate bolt hole 21, the beam grouting bolt hole 53 and the triangular bearing plate 7 on the other side of the precast beam 5.
(5-3) grouting bolt anchoring: the opposite pull nuts 41 at both ends of the grouting bolt 4 are simultaneously rotated by using a wrench until the opposite pull nuts cannot be screwed.
(5-4) hollow screw grouting: high-strength non-shrinkage grout is injected from the grout injection hole 44, the grout permeates into the gap between the grouting bolt 4 and the hole from the grout permeation hole 43 to fill the gap and the hollow screw 42, and the grouting is stopped when the grout overflows from the grout outlet hole 45.
(6) Filling gaps and gaps:
(6-1) gap filling: and (3) filling the beam trapezoidal notch 54, the bracket trapezoidal notch 65 and the triangular notches 57 at two sides of the precast beam 5 with mortar, and covering the bolts.
(6-2) gap filling: and filling the gap between the precast beam 5 and the precast column 1 with mortar to form a filling layer 10.
The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.
Claims (10)
1. The connecting method of the joints of the hidden corbel type beam column for damping is characterized by comprising a prefabricated column, a T-shaped steel plate, a hidden corbel and a prefabricated beam, wherein the T-shaped steel plate comprises a vertical connecting plate and an inserting plate; the connection method comprises the following steps:
(1) The prefabricated column is manufactured: embedding a vertical connecting plate of a T-shaped steel plate in the prefabricated column, and enabling an inserting plate to horizontally extend out of the prefabricated column from the side surface of the prefabricated column; integrally prefabricating a prefabricated column and a dark bracket, wherein the dark bracket is positioned below an insertion plate, one surface of the dark bracket, which is far away from the prefabricated column, is provided with an inclined surface, and a triangular splicing plate is arranged on the inclined surface; an inserting plate bolt hole and a bracket bolt hole which penetrate through the inserting plate and the hidden bracket from top to bottom are reserved on the inserting plate and the hidden bracket respectively, and a triangular splicing plate bolt hole which penetrates through the triangular splicing plate from left to right is reserved on the triangular splicing plate;
(2) manufacturing a precast beam: a notch matched with the shape of the hidden bracket is arranged below one side of the precast beam close to the precast column, so that the lower surface of the precast beam is flush with the lower surface of the hidden bracket when the precast beam is connected to the precast column; a square groove matched with the inserting plate is formed in one side face, with the gap, of the precast beam, and a triangular groove matched with the triangular splicing plate is formed inwards in the contact surface of the precast beam and the inclined face of the hidden bracket; reserving beam high-strength bolt holes corresponding to the insert plate bolt holes in the height direction of the precast beam, and reserving beam grouting bolt holes corresponding to the triangular splice plate bolt holes in the width direction of the precast beam;
(3) assembling the beam column: inserting the inserting plates into the square grooves, and inserting the triangular splicing plates into the triangular grooves to complete beam column splicing;
(4) fixing the vertical node: the high-strength bolts sequentially penetrate through the beam high-strength bolt holes, the inserting plate bolt holes and the bracket bolt holes to finish the vertical anchoring connection of the prefabricated beam, the inserting plate and the hidden bracket;
(5) Fixing transverse nodes: the grouting bolt sequentially penetrates through the beam grouting bolt hole and the triangular splicing plate bolt hole to complete transverse anchoring connection of the precast beam and the triangular splicing plate; the grouting bolt comprises a split nut and a hollow screw, the two ends of the hollow screw are respectively provided with a grouting hole and a grout outlet, and the surface of the hollow screw is provided with a plurality of grout seepage holes; high-strength non-shrinkage slurry is injected from the grouting hole, and the slurry permeates into a gap between the grouting bolt and the hole from the slurry seepage hole to fill the gap and the hollow screw.
2. The method for connecting the joints of the dark bracket type beam column for shock absorption according to claim 1, wherein vertical stress tendons and stirrups are arranged in the prefabricated column, and the stirrups are used for fixing the vertical stress tendons; the step (1) comprises the following specific steps:
(1-1) arranging reinforcing steel bars: laying vertical stressed tendons in the prefabricated column according to design requirements, and fixing the vertical stressed tendons by using stirrups; laying steel bars in the hidden brackets according to design requirements;
(1-2) steel plate welding: respectively welding a vertical connecting plate of the T-shaped steel plate with a vertical stress rib and a stirrup of the column;
(1-3) supporting a template: erecting a template and a reserved hole according to the shapes of the prefabricated column and the hidden bracket;
(1-4) concrete pouring: and pouring concrete into the prefabricated column and the hidden bracket, and embedding the T-shaped steel plate in the prefabricated column to complete the integral prefabrication of the prefabricated column and the hidden bracket.
3. the method for connecting the joints of the dark corbel type beam column for shock absorption according to claim 1, wherein the step (2) comprises the following specific steps:
(2-1) arranging reinforcing steel bars: binding steel bars according to design requirements;
(2-2) supporting a template: erecting a template and a reserved hole according to the shape of the precast beam;
(2-3) concrete pouring: and pouring concrete to the precast beam.
4. the method for connecting the joints of the dark corbel-type beam column for damping according to claim 1, wherein the upper surface of the dark corbel is provided with a rubber gasket, and the rubber gasket is provided with rubber gasket bolt holes corresponding to the corbel bolt holes.
5. the method for connecting the joints of the dark corbel type beam column for shock absorption according to claim 4, wherein the step (3) comprises the following steps:
(3-1) gasket installation: installing a rubber gasket at the contact position of the upper surface of the hidden bracket and the precast beam;
(3-2) hoisting the precast beam: hoisting the precast beam, wherein the square groove of the precast beam is aligned to the insertion plate at the front end of the T-shaped steel plate; the triangular groove of the precast beam is aligned with the triangular splicing plate on the hidden bracket;
(3-3) beam column splicing: and moving the precast beam to splice the insertion plate and the square groove, and splice the triangular groove and the triangular splicing plate.
6. the method for connecting the node of the dark corbel-type beam column for damping according to claim 1, wherein a corbel trapezoidal notch is formed in the lower surface of the dark corbel along the bolt hole, a beam trapezoidal notch is formed in the upper surface of the precast beam along the bolt hole, rectangular bearing plates are respectively arranged in the corbel trapezoidal notch and the beam trapezoidal notch, and rectangular bearing plate bolt holes are formed in the rectangular bearing plates.
7. the method for connecting the joints of the dark corbel type beam column for shock absorption according to claim 6, wherein the step (4) comprises the following steps:
(4-1) installing a rectangular bearing plate: respectively installing rectangular bearing plates at the beam trapezoidal notch and the bracket trapezoidal notch;
(4-2) high-strength bolt installation: inserting a high-strength bolt from the upper part of a rectangular bearing plate on a beam trapezoidal notch, and sequentially penetrating through a beam high-strength bolt hole, an inserting plate bolt hole, a beam high-strength bolt hole, a rubber gasket bolt hole, a bracket bolt hole and another rectangular bearing plate on the lower surface of a hidden bracket;
(4-3) high-strength bolt anchoring: and fixing the nut of the high-strength bolt, and rotating the nut until the nut cannot be screwed.
8. The method for connecting the joints of the dark corbel type beam column for the shock absorption according to claim 1, wherein triangular notches corresponding to the triangular groove positions are respectively arranged on two sides of the precast beam, triangular bearing plates are arranged in the triangular notches, and triangular bearing plate bolt holes for grouting bolts to pass through are arranged on the triangular bearing plates.
9. the method for connecting the joints of the dark corbel type beam column for shock absorption according to claim 8, wherein the step (5) comprises the following steps:
(5-1) mounting a triangular bearing plate: respectively installing two triangular bearing plates at triangular notches at two sides of the precast beam;
(5-2) grouting bolt installation: inserting a hollow screw rod from the front of the triangular bearing plate, and sequentially passing through a triangular bearing plate bolt hole, a beam grouting bolt hole, a triangular splicing plate bolt hole, a beam grouting bolt hole and a triangular bearing plate bolt hole on the other side of the precast beam;
(5-3) grouting bolt anchoring: the opposite-pulling nuts at two ends of the grouting bolt are simultaneously rotated by using a spanner until the opposite-pulling nuts cannot be screwed;
(5-4) hollow screw grouting: and (3) injecting high-strength non-shrinkage slurry from the grouting hole, enabling the slurry to penetrate into a gap between the grouting bolt and the hole from the slurry seepage hole, filling the gap and the hollow screw, and stopping grouting when the slurry overflows from the slurry outlet hole.
10. the method for connecting the joints of the dark corbel-type beam-column for shock absorption according to claim 6 or 8, wherein the connecting method further comprises the following steps (6) of filling gaps and gaps:
(6-1) gap filling: filling the trapezoidal gap of the beam, the trapezoidal gap of the bracket or the triangular gap with mortar, and covering the bolt;
(6-2) gap filling: and filling the gap between the precast beam and the precast column with mortar to form a filling layer.
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| CN115012670A (en) * | 2022-05-19 | 2022-09-06 | 上海师范大学 | Multilayer anchoring connection method for fiber reinforced concrete beam-column joint |
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Address after: 312000 new Sanjiang Gate West, Yuecheng District, Shaoxing City, Zhejiang Province Patentee after: Zhejiang Zhongqingda Construction Industry Co.,Ltd. Patentee after: SHAOXING University Address before: 312000 new Sanjiang Gate West, Yuecheng District, Shaoxing City, Zhejiang Province Patentee before: ZHEJIANG ZHONGQINGDA ARCHITECTURAL INDUSTRIALIZATION Co.,Ltd. Patentee before: SHAOXING University |