CN117926914A - Support-free assembled beam column node structure and mounting method thereof - Google Patents
Support-free assembled beam column node structure and mounting method thereof Download PDFInfo
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- CN117926914A CN117926914A CN202410321786.0A CN202410321786A CN117926914A CN 117926914 A CN117926914 A CN 117926914A CN 202410321786 A CN202410321786 A CN 202410321786A CN 117926914 A CN117926914 A CN 117926914A
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- 238000000034 method Methods 0.000 title claims abstract description 18
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 80
- 239000010959 steel Substances 0.000 claims abstract description 80
- 239000004567 concrete Substances 0.000 claims abstract description 24
- 239000011150 reinforced concrete Substances 0.000 claims abstract description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 8
- 230000000149 penetrating effect Effects 0.000 claims description 7
- 238000005096 rolling process Methods 0.000 claims description 5
- 229910052742 iron Inorganic materials 0.000 claims description 4
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims 4
- 238000009434 installation Methods 0.000 abstract description 10
- 238000010276 construction Methods 0.000 abstract description 6
- 238000010008 shearing Methods 0.000 abstract description 2
- 230000002787 reinforcement Effects 0.000 description 32
- 230000000694 effects Effects 0.000 description 20
- 238000010586 diagram Methods 0.000 description 14
- 238000009417 prefabrication Methods 0.000 description 7
- 210000002435 tendon Anatomy 0.000 description 6
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000011065 in-situ storage Methods 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 239000011178 precast concrete Substances 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/30—Adapting or protecting infrastructure or their operation in transportation, e.g. on roads, waterways or railways
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- Rod-Shaped Construction Members (AREA)
Abstract
The invention relates to a support-free assembled beam column node structure and an installation method thereof, wherein the beam column node structure comprises a prefabricated column and a prefabricated beam; the prefabricated column is in a reinforced concrete column structure and is provided with a node area where concrete is not poured; the lower part of the node area is provided with a node connecting component; the prefabricated beam is a groove-shaped beam which is erected on the node connecting assembly, and beam steel bars extending into the node areas are arranged in the groove-shaped beam; and pouring cast-in-place concrete in the node area and the groove type beam. The installation method comprises the following steps: installing the prefabricated column at a designated position; hoisting the precast beam, so that the end part of the precast beam is supported on the U-shaped bracket; laying and binding beam steel bars; and finally paving templates on two sides of the precast beam and around the node area and pouring concrete. The arrangement of the node connecting assembly can ensure the reliable transfer of shearing force between precast beam column components, further realize that temporary support is not required to be erected in the process of installing the precast components, and improve the safety and the installation efficiency in the process of structural construction.
Description
Technical Field
The invention relates to the field of assembly buildings, in particular to a support-free assembly type beam column node structure and an installation method thereof.
Background
The existing precast reinforced concrete structure is characterized in that precast columns are precast according to floors in a layered mode, and on-site connection of column vertical steel bars is achieved at beam column joints of all floors by adopting sleeve grouting connection and other technologies. The column reinforcement connection cost of the layered prefabrication scheme is high and the difficulty is high. And because of the limitation of the technological level, the reliability fluctuation of the sleeve grouting connection is larger, and the engineering application of the precast concrete structure is limited. Meanwhile, the layered prefabrication scheme has poor integrity, and after the connection of the prefabrication column and the prefabrication beam is completed, the prefabrication component of the next layer can be installed after the strength of the node is guaranteed by concrete cast-in-situ.
The beam column joints are the junctions of a plurality of steel bars, the steel bars are dense, and the construction difficulty is high. The existing prefabrication scheme adopts the method that overhanging steel bars at the precast beam ends in the same direction are respectively anchored into nodes, and left-right avoidance or up-down avoidance is adopted on space arrangement, so that the number of the node steel bars is increased while the installation possibility is solved, and the node construction difficulty is further increased.
Disclosure of Invention
The invention aims at: the support-free assembled beam column node structure and the installation method thereof can realize quick connection of beam column nodes, and temporary support is not required in the connection process.
The invention is realized by the following technical scheme: a support-free fabricated beam column node structure comprises a prefabricated column and a prefabricated beam;
the precast column is of a reinforced concrete column structure, and a beam column joint of the precast column is a joint area which is connected through vertical steel bars and is not poured with concrete;
The lower part of the node area is surrounded by a plurality of back plates to form a node connecting assembly; the middle part of the upper edge of any backboard is provided with a rib feeding notch, at least part of the outer side wall surface of the backboard is provided with a U-shaped bracket attached to the edge of the rib feeding notch, and the inner side wall of the lower part of any backboard is connected with a plurality of pegs; a steel mesh engraving is arranged in the node connecting assembly and above the stud;
The precast beam is a groove-shaped beam with a groove, and beam stirrups extending upwards are arranged on the beam surface of the groove-shaped beam; the end part of the precast beam is erected on the U-shaped bracket, and beam steel bars extending into the node area are distributed in the groove of the groove-shaped beam from top to bottom;
Stirrups surrounding the vertical steel bars are arranged up and down at the node areas, and beam steel bars are supported on the stirrups;
cast-in-place concrete is poured in the node area of the prefabricated column and the groove type beam, and the cast-in-place concrete coats vertical steel bars and stirrups of the node area and beam steel bars and beam stirrups of the groove type beam.
The mounting method of the support-free assembled beam column node structure comprises the following steps:
step1, installing a prefabricated column at a designated position;
Step2, hoisting the precast beam, so that the end part of the precast beam is supported on the U-shaped bracket;
Step 3, arranging a plurality of beam reinforcement conveying devices on the longitudinal precast beams in sequence according to the extending direction of the precast beams, arranging beam reinforcement on the beam reinforcement conveying devices, and pushing the beam reinforcement into a node area of a precast column or penetrating the node area to another longitudinal precast beam; lifting the beam steel bar by a lifting rope which bypasses the beam steel bar, and taking out the steel bar feeding device to lower the beam steel bar to the bottom of the groove to form a beam bottom steel bar;
Step 4, repeating the operation of the step 3 to finish the arrangement of beam bottom ribs of the transverse precast beams; then finishing the layout of the upper and lower stirrups in the node area; simultaneously binding stirrups and beam bottom ribs;
Step 5, arranging a plurality of beam reinforcement conveying devices on the longitudinal precast beams in sequence according to the extending direction of the precast beams, arranging beam reinforcement on the beam reinforcement conveying devices, and pushing the beam reinforcement into a node area of a precast column or penetrating the node area to another longitudinal precast beam; lifting the beam steel bar by a lifting rope which bypasses the beam steel bar, and supporting the beam steel bar on the stirrup to form Liang Mianjin by taking out the steel bar feeding device; simultaneously, the stirrups and Liang Mianjin are mutually bound;
Step 6, repeating the operation of the step 5 to finish Liang Mianjin layout of the transverse precast beams;
And 7, paving templates on two sides of the precast beam and around the node area, and pouring concrete to enable the concrete to cover the vertical steel bars and stirrups of the node area and the beam steel bars and beam stirrups of the groove-type beam.
Compared with the prior art, the invention has the beneficial effects that:
1. The arrangement of the node connecting assembly can ensure the reliable transfer of shearing force between precast beam column components, so that temporary support is not required to be built in the installation process of the precast components, and the safety and the installation efficiency in the construction process of the structure can be improved while green construction is realized.
2. The number of hanging can be reduced by integrally prefabricating the multi-layer concrete columns, and the installation efficiency of the prefabricating structure is obviously improved; due to the integrated prefabrication, the method has obvious advantages in the aspect of installation precision; the number of field steel bar connections is reduced, so that the installation cost can be obviously reduced.
3. The beam bottom steel bars are arranged in the grooves of the precast beam, so that the number of beam steel bars penetrating through the post-pouring nodes can be reduced by half, the concrete pouring condition at the beam column nodes is obviously improved, and the quality of the precast structure is improved.
4. In the horizontal pushing process of the beam steel bars, the steel bar feeding device is matched, so that the pushing difficulty of the beam steel bars is reduced, and the construction efficiency is improved.
5. The U-shaped bracket can be flexibly arranged according to the arrangement condition of the precast beams, the cost is effectively saved, the joint is free from obvious protrusion, the indoor effect of the cast-in-situ structure is consistent, and the use function of the building is free from adverse effect.
Drawings
FIG. 1 is a schematic view of a structure of a prefabricated column;
FIG. 2 is a schematic structural view of a node connection assembly;
FIG. 3 is an exploded view of FIG. 2;
FIG. 4 is a schematic view of a precast beam structure;
FIG. 5 is a diagram showing the overall effect of the present invention;
FIG. 6 is an effect diagram of mounting Yu Yuzhi a precast beam on a column;
FIG. 7 is an effect diagram of a longitudinal precast beam after installing a tendon feed device;
FIG. 8 is an effect diagram of placing beam tendons on a longitudinal precast beam;
FIG. 9 is an effect diagram of completing the winding of the lifting rope after the pushing of the beam reinforcement is completed on the basis of FIG. 8;
fig. 10 is an effect diagram of the beam rebar lifted and taken out of the rebar feeder on the basis of fig. 9;
FIG. 11 is an effect diagram of the beam rebar placement completed on the basis of FIG. 10 to become a beam underbody rebar;
FIG. 12 is an effect diagram of a transverse precast beam after installing a tendon feed device;
FIG. 13 is an effect diagram of completing the winding of the lifting rope after the pushing of the beam reinforcement is completed on the basis of FIG. 12;
FIG. 14 is an effect diagram of the completion of the placement of the beam rebar into a beam underbody rebar on the basis of FIG. 13;
FIG. 15 is an effect diagram of the placement of stirrups on a nodal region;
FIG. 16 is an effect diagram of the stirrups laid up and down in the node area;
FIG. 17 is an effect view of the longitudinal precast beam after the rib feeding device is mounted again;
Fig. 18 is an effect diagram of the secondary placement of beam rebar on the basis of fig. 17;
FIG. 19 is an effect view of the tendon delivery device taken out of the device of FIG. 18;
FIG. 20 is a view showing the effect of installing the reinforcement feeding device again on the transverse precast beam and completing the pushing of the beam reinforcement;
FIG. 21 is an effect view of the tendon delivery device taken out of the device of FIG. 20;
FIG. 22 is an effect diagram of placement of precast beams on adjacent faces of a node connection assembly;
Fig. 23 is a schematic structural view of the tendon feeding device.
Description of the reference numerals:
1-prefabricated columns, 11-node areas, 12-vertical steel bars and 13-stirrups;
2-precast beams, 21-beam stirrups, 22-beam reinforcements, 221-beam bottom reinforcements, 222-Liang Mianjin and 23-grooves;
the 3-node connecting assembly, the 31-backboard, the 32-rib feeding notch, the 33-U-shaped bracket, the 34-stud and the 35-steel mesh engraving;
4-a rib feeding device, -41 bearing seats and 42 rolling shafts.
Detailed Description
The invention is described in detail below with reference to the accompanying drawings:
As shown in fig. 1-5: a support-free assembled beam column node structure comprises a precast column 1 and a precast beam 2;
The precast column 1 is of a reinforced concrete column structure, and a beam column joint of the precast column 1 is a joint area 11 which is connected through a vertical steel bar 12 and is not poured with concrete;
the lower part of the node area 11 is surrounded by a plurality of backboard 31 to form a node connecting assembly 3; a rib feeding notch 32 is formed in the middle of the upper edge of any backboard 31, a U-shaped bracket 33 attached to the edge of the rib feeding notch 32 is arranged on the outer side wall surface of at least part of the backboard 31, and a plurality of pegs 34 are connected to the inner side wall of the lower part of any backboard 31; a steel mesh hollow 35 is arranged in the node connecting assembly 3 and above the stud 34;
The precast beam 2 is a groove-shaped beam (also called a U-shaped beam) with a groove 23, and the beam surface of the groove-shaped beam is provided with beam stirrups 21 extending upwards; the end part of the precast beam 2 is erected on a U-shaped bracket 33, and a beam steel bar 22 extending into the node area 11 is arranged in a groove 23 of the groove-shaped beam from top to bottom;
Stirrups 13 surrounding the vertical steel bars 12 are arranged up and down at the joint areas 11, and beam steel bars 22 are supported on the stirrups 13;
Cast-in-place concrete is poured in the node area 11 and the groove type beam of the precast column 1, and the cast-in-place concrete coats the vertical steel bars 12 and the stirrups 13 of the node area 11, and the beam steel bars 22 and the beam stirrups 21 of the groove type beam.
The number of node areas 11 is set to one or more according to the height of the prefabricated pillar 1 and the number of nodes.
Here, the U-shaped brackets 33 are welded according to the number of the precast beams 2, and if the positions where the precast beams are required to be installed are adjacent or opposite, the U-shaped brackets 33 are installed on the specified back plate 31; correspondingly, if the precast beams are required to be installed in three or four directions, the U-shaped bracket 33 is installed on the designated back plate 31.
The steel mesh engraving 35 is arranged to ensure that the roughness of the connection surface of the new and old concrete can be ensured when the concrete is poured in a segmented mode, and further the connection strength of a concrete interface is ensured.
The beam reinforcement 22 is divided into a beam bottom reinforcement 221 located at the bottom of the groove 23 of the channel beam and Liang Mianjin 222 located at the top of the groove 23 of the channel beam.
As shown in fig. 23: the steel bar feeding device 4 comprises two bearing seats 41, two bearings and a rolling shaft 42, wherein the two bearings are arranged on the bearing seats 41, and two ends of the rolling shaft 42 are respectively arranged on the two bearings. The beam reinforcement device 4 is mainly used for horizontally conveying the beam reinforcement 22 placed on the precast beam 2, so that the beam reinforcement 22 slides into the node zone 11, and the beam reinforcement 22 can be conveyed to the precast beam 2 on the other side if necessary.
The stirrups 13 and the vertical steel bars 12 are mutually bound and fixed through iron wires. The stirrup 13 may be initially bound to the vertical bar 12, and when necessary, the binding is released, and after being laid up and down, the stirrup is bound again to the vertical bar 12. The device can also be arranged on site at a later stage and then bound on the vertical steel bars 12.
As shown in fig. 6-22: the mounting method of the support-free assembled beam column node structure comprises the following steps:
Step1, installing a prefabricated column 1 at a designated position;
Step 2, hoisting the precast beam 2, so that the end part of the precast beam 2 is supported on a U-shaped bracket 33 (shown in fig. 6);
Step 3, arranging a plurality of beam reinforcement conveying devices 4 on the longitudinal precast beams 2 in sequence according to the extending direction of the precast beams 2, arranging beam reinforcement 22 on the beam reinforcement conveying devices 4, and pushing the beam reinforcement 22 into the node area 11 of the precast column 1 or penetrating through the node area 11 to the other longitudinal precast beam 2; lifting the beam steel bar 22 by a lifting rope which bypasses the beam steel bar 22, and lowering the beam steel bar 22 to the bottom of the groove 23 to form a beam bottom steel bar 221 (shown in fig. 7-11) by taking out the steel bar feeding device 4;
Step 4, repeating the operation of step 3 to complete the arrangement of beam bottom ribs 221 of the transverse precast beam 2; then, the layout of the upper and lower stirrups 13 in the node area 11 is completed; simultaneously, the stirrup 13 and the beam bottom bar 221 are mutually bound; (as shown in fig. 12-16);
Step 5, arranging a plurality of beam reinforcement conveying devices 4 on the longitudinal precast beams 2 in sequence according to the extending direction of the precast beams 2, arranging beam reinforcement 22 on the beam reinforcement conveying devices 4, and pushing the beam reinforcement 22 into the node area 11 of the precast column 1 or penetrating through the node area 11 to the other longitudinal precast beam 2; the beam steel bar 22 is lifted by a lifting rope which bypasses the beam steel bar 22, and the beam steel bar 22 is supported on the stirrup 13 by taking out the steel bar feeding device 4 to form Liang Mianjin 222,222; simultaneously, the stirrups 13 and Liang Mianjin and 222 are mutually bound; (as shown in fig. 17-19);
Step 6, repeating the operation of step5 to complete Liang Mianjin 222,222 layout of the transverse precast beam 2 (as shown in fig. 20-21);
and 7, paving templates on two sides of the precast beam 2 and around the node area 11, and pouring concrete to enable the concrete to cover the vertical steel bars 12 and the stirrups 13 of the node area 11, and the beam steel bars 22 and the beam stirrups 21 of the groove-shaped beam.
Before the step 4, the stirrups 13 are connected to the uppermost vertical steel bar 12 of the node area 11 through iron wires. After the beam bottom reinforcement 221 is laid, the connection between the stirrup 13 and the vertical reinforcement 12 is released, and then the stirrup 13 is laid up and down and bound on the vertical reinforcement 12.
As shown in fig. 22, if only two adjacent faces of the node connection assembly of the prefabricated column are placed with the prefabricated beams, the ends of the beam reinforcing bars 22 thereof extend only into the node area 11 and do not pass through the node area 11.
It should be noted that the foregoing description is only a preferred embodiment of the present invention, and although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood that modifications, equivalents, improvements and modifications to the technical solution described in the foregoing embodiments may occur to those skilled in the art, and all modifications, equivalents, and improvements are intended to be included within the spirit and principle of the present invention.
Claims (6)
1. A exempt from to support assembled beam column node structure which characterized in that: comprises a precast column (1) and a precast beam (2);
the precast column (1) is of a reinforced concrete column structure, and a beam column node of the precast column (1) is a node area (11) which is connected through vertical steel bars (12) and is not poured with concrete;
The lower part of the node area (11) is surrounded by a plurality of back plates (31) to form a node connecting assembly (3); a rib feeding notch (32) is formed in the middle of the upper edge of any backboard (31), a U-shaped bracket (33) attached to the edge of the rib feeding notch (32) is arranged on the outer side wall surface of at least part of the backboard (31), and a plurality of pegs (34) are connected to the inner side wall of the lower part of any backboard (31); a steel mesh engraving (35) is arranged in the node connecting assembly (3) and above the stud (34);
The precast beam (2) is a groove-shaped beam with a groove (23), and a beam surface of the groove-shaped beam is provided with beam stirrups (21) extending upwards; the end part of the precast beam (2) is erected on a U-shaped bracket (33), and beam steel bars (22) extending into the node area (11) are arranged in grooves (23) of the groove-shaped beam from top to bottom;
Stirrups (13) surrounding the vertical steel bars (12) are arranged up and down at the node areas (11), and beam steel bars (22) are supported on the stirrups (13);
Cast-in-place concrete is poured in the node area (11) and the groove-shaped beam of the prefabricated column (1), and the cast-in-place concrete coats the vertical steel bars (12), the stirrups (13) of the node area (11), the beam steel bars (22) and the beam stirrups (21) of the groove-shaped beam.
2. The support-free fabricated beam column node structure of claim 1, wherein: the beam steel bars (22) are divided into beam bottom bars (221) positioned at the bottom of the grooves (23) of the groove-shaped beam and Liang Mianjin (222) positioned at the top surface of the grooves (23) of the groove-shaped beam.
3. The support-free fabricated beam column node structure of claim 1, wherein: the novel steel bar conveying device is characterized by further comprising a steel bar conveying device (4), wherein the steel bar conveying device (4) comprises two bearing seats (41), two bearings and a rolling shaft (42), the two bearings are arranged on the bearing seats (41), and two ends of the rolling shaft (42) are respectively arranged on the two bearings.
4. The support-free fabricated beam column node structure of claim 1, wherein: the stirrups (13) and the vertical steel bars (12) are mutually bound and fixed through iron wires.
5. A mounting method of a support-free assembled beam column node structure is characterized by comprising the following steps of: the method comprises the following steps:
Step 1, installing a prefabricated column (1) at a designated position;
step 2, hoisting the precast beam (2) to enable the end part of the precast beam (2) to be supported on the U-shaped bracket (33);
Step 3, arranging a plurality of rib conveying devices (4) on the longitudinal precast beams (2) in sequence according to the extending direction of the precast beams (2), arranging beam reinforcing steel bars (22) on the rib conveying devices (4), and pushing the beam reinforcing steel bars (22) into a node area (11) of the precast column (1) or penetrating through the node area (11) to the other longitudinal precast beams (2); lifting the beam steel bar (22) through a lifting rope which bypasses the beam steel bar (22), and lowering the beam steel bar (22) to the bottom of the groove (23) to form a beam bottom steel bar (221) by taking out the steel bar conveying device (4);
Step 4, repeating the operation of the step 3 to finish the arrangement of beam bottom ribs (221) of the transverse precast beam (2); then, the arrangement of the stirrups (13) from top to bottom in the node area (11) is completed, and meanwhile, the stirrups (13) and the beam bottom stirrups (221) are mutually bound;
Step 5, arranging a plurality of rib conveying devices (4) on the longitudinal precast beams (2) in sequence according to the extending direction of the precast beams (2), arranging beam reinforcing steel bars (22) on the rib conveying devices (4), and pushing the beam reinforcing steel bars (22) into a node area (11) of the precast column (1) or penetrating through the node area (11) to the other longitudinal precast beams (2); lifting the beam steel bar (22) through a lifting rope which bypasses the beam steel bar (22), and supporting the beam steel bar (22) on the stirrup (13) to form Liang Mianjin (222) by taking out the steel bar conveying device (4); simultaneously, the stirrups (13) and Liang Mianjin (222) are mutually bound;
step 6, repeating the operation of the step 5 to finish Liang Mianjin (222) layout of the transverse precast beam (2);
And 7, paving templates on two sides of the precast beam (2) and around the node area (11), and pouring concrete to enable the concrete to cover the vertical steel bars (12) and the stirrups (13) of the node area (11), and the beam steel bars (22) and the beam stirrups (21) of the groove-type beam.
6. The method for installing a support-free fabricated beam column node structure according to claim 5, wherein: before the step 4, the stirrups (13) are connected to the uppermost vertical steel bar (12) of the node area (11) through iron wires.
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CN202410321786.0A CN117926914A (en) | 2024-03-20 | 2024-03-20 | Support-free assembled beam column node structure and mounting method thereof |
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CN202410321786.0A CN117926914A (en) | 2024-03-20 | 2024-03-20 | Support-free assembled beam column node structure and mounting method thereof |
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KR101770382B1 (en) * | 2016-08-18 | 2017-09-05 | 동서 피, 씨, 씨 주식회사 | Construction method by using precast concrete column |
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CN209686711U (en) * | 2018-09-07 | 2019-11-26 | 三一筑工科技有限公司 | Prefabricated laminated superposed column, reinforced column and assembled architecture body |
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CN113719029A (en) * | 2021-08-16 | 2021-11-30 | 武汉理工大学 | Assembly type beam-column connecting joint based on hidden corbels and construction method thereof |
CN215977672U (en) * | 2021-07-29 | 2022-03-08 | 筑友智造建设科技集团有限公司 | Assembled beam column connected node |
CN116727268A (en) * | 2023-02-17 | 2023-09-12 | 河南永益同丰智能科技有限公司 | Reinforcing bar disorder ruler sorting production line |
CN117587923A (en) * | 2023-12-29 | 2024-02-23 | 中铁第四勘察设计院集团有限公司 | Dry connection frame node structure and construction method thereof |
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KR101770382B1 (en) * | 2016-08-18 | 2017-09-05 | 동서 피, 씨, 씨 주식회사 | Construction method by using precast concrete column |
CN109057046A (en) * | 2018-07-09 | 2018-12-21 | 常州市规划设计院 | The assembled integral beam-column node structure and construction method of additional closure connection reinforcing bar |
CN209686711U (en) * | 2018-09-07 | 2019-11-26 | 三一筑工科技有限公司 | Prefabricated laminated superposed column, reinforced column and assembled architecture body |
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CN215977672U (en) * | 2021-07-29 | 2022-03-08 | 筑友智造建设科技集团有限公司 | Assembled beam column connected node |
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CN117587923A (en) * | 2023-12-29 | 2024-02-23 | 中铁第四勘察设计院集团有限公司 | Dry connection frame node structure and construction method thereof |
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