CN110130502B - Integral connection system of reinforced concrete assembly type building - Google Patents
Integral connection system of reinforced concrete assembly type building Download PDFInfo
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- CN110130502B CN110130502B CN201910477265.3A CN201910477265A CN110130502B CN 110130502 B CN110130502 B CN 110130502B CN 201910477265 A CN201910477265 A CN 201910477265A CN 110130502 B CN110130502 B CN 110130502B
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- column
- connecting piece
- hopper
- floor
- upper column
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/38—Connections for building structures in general
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/38—Connections for building structures in general
- E04B1/58—Connections for building structures in general of bar-shaped building elements
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- 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
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- 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
- E04H9/14—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 against other dangerous influences, e.g. tornadoes, floods
Abstract
The invention discloses an integral connecting system of a reinforced concrete assembly type building, which is mainly used for the assembly type building, has high construction speed and good integrity; the beam-column combined floor mainly comprises an upper column, a lower column, a beam, a floor slab and a floor slab at the joint of the beam and the column; the construction process comprises the following steps: firstly hoisting an upper column, inserting a connecting bucket A of the upper column into a connecting bucket B of a lower column, then temporarily fixing a lower connecting piece and the upper connecting piece by using bolts and nuts, then driving wedge pins into a wedge pin hole B of the lower column and a wedge pin hole A of the upper column, finally screwing a fixing nut of the lower connecting piece of the upper column and the upper connecting piece of the lower column, hoisting a beam, connecting a pre-embedded plate B of the beam with a pre-embedded plate A of the upper column by using bolts and nuts, hoisting a floor slab at the joint of the floor slab and the beam column, then continuously hoisting the column, the beam and the plate of the upper layer structure, simultaneously carrying out steel bar connection and secondary concrete pouring work of the lower layer structure, and alternately carrying out hoisting of the upper layer structure and pouring work of the lower layer structure until the main body engineering is finished.
Description
Technical Field
The invention is mainly used for reinforced concrete fabricated buildings.
Background
The connection of the column, the beam and the plate of the reinforced concrete assembly type building which is applied or used at present has the defects of insecure connection, easy occurrence of connection quality problem, poor connection integrity and unfavorable resistance to earthquake load and wind load.
Disclosure of Invention
The invention solves the problems, has high construction speed, has good integrity of a structural system, and is very beneficial to resisting earthquake load and wind load.
The combined type beam column is composed of an upper column (1), a lower column (2), a lower connecting piece (3), an upper connecting piece (4), an embedded plate A (6), an embedded plate B (7), a beam (8), a wedge pin (9), a floor slab (10) and a floor slab (12) at the joint of the beam column; the lower connecting piece (3) is embedded at the lower end of the upper column (1), the central axis of the upper column (1) is superposed with the central axis of the lower connecting piece (3), the upper connecting piece (4) is embedded at the upper end of the upper column (1), and the central axis of the upper column (1) is superposed with the central axis of the upper connecting piece (4); the lower connecting piece (3) consists of a connecting plate A (24) and a connecting hopper A (20), the connecting plate A (24) is uniformly provided with a plurality of connecting holes A (5), the upper end of the connecting hopper A (20) is fixed with the center of the lower end of the connecting plate A (24), the connecting hopper A (20) is in a frustum shape with a large upper part and a small lower part, the upper end of the connecting hopper A (20) is open, and the periphery of the lower part of the connecting hopper A (20) is uniformly provided with a plurality of wedge pin holes A (22); the upper connecting piece (4) consists of a connecting plate B (25) and a connecting hopper B (21), a plurality of connecting holes B (27) are uniformly distributed on the connecting plate B (25), the upper end of the connecting hopper B (21) is fixed with the center of the lower end of the connecting plate B (25), the connecting hopper B (21) is in a frustum shape with a large upper part and a small lower part, the upper end of the connecting hopper B (21) is open, a plurality of wedge pin holes B (23) are uniformly distributed on the peripheries of the upper parts of the connecting hopper B (21) and the upper column (1), and a plurality of pre-embedded plates A (6) are pre-embedded in the lower part of the upper column; each part of the lower column (2) is completely consistent with the upper column (1), when the connecting hopper A (20) of the lower connecting piece (3) of the upper column (1) is inserted into the connecting hopper B (21) of the upper connecting piece (4) of the lower column (2), the connecting hopper A (20) of the upper column (1) and the connecting hopper B (21) of the lower column (2) are mutually overlapped, the connecting plate A (24) of the upper column (1) and the connecting plate B (25) of the lower column (2) are mutually overlapped, a plurality of connecting holes A (5) of the upper column (1) and a plurality of connecting holes B (27) of the lower column (2) are in one-to-one correspondence, a plurality of wedge pin holes A (22) of the upper column (1) and a plurality of wedge pin holes B (23) of the lower column (2) are in one-to-one correspondence, the connecting hopper A (20) of the lower connecting piece (3) of the upper column (1) and the lower column (2) are filled with concrete, and the upper column (1) and the upper column (4) and the lower column (2) are respectively filled with the upper rib (16) and the upper column (4) Welding, wherein two ends of a lower column main rib (17) of the lower column (2) are respectively welded with an upper connecting piece (4) and a lower connecting piece (3) of the lower column (2); the embedded plates B (7) are embedded in two ends of the beam (8), bolt connecting holes of the embedded plates A (6) of the upper column (1) are in one-to-one correspondence with bolt connecting holes of the embedded plates B (7) of the beam (8), the cross section of the beam (8) is provided with two symmetrically arranged lugs (19), the top elevation of the two lugs (19) is consistent with the bottom elevation of a floor slab (12) at the joint of the floor slab (10) and the beam column, and the upper part of a beam stirrup (18) of the beam (8) is exposed; the periphery of the floor (10) is provided with a plurality of connecting reinforcing steel bars A (11); a plurality of connecting steel bars B (13) are arranged on the periphery of the floor (12) at the joint of the beam and the column; the construction process of the integral connecting system is as follows: hoisting and fixing a lower column (2), coating epoxy glue or sulfur glue on the inner surface of an upper connecting piece (4) of the lower column (2), coating epoxy glue or sulfur glue on the outer surface of a lower connecting piece (3) of the upper column (1), hoisting the upper column (1), inserting a connecting hopper A (20) of the lower connecting piece (3) of the upper column (1) into a connecting hopper B (21) of the upper connecting piece (4) of the lower column (2), temporarily fixing the lower connecting piece (3) and the upper connecting piece (4) by using bolts and nuts, at the moment, superposing a wedge pin hole B (23) of the lower column (2) and a wedge pin hole A (22) of the upper column (1), driving a wedge pin (9) into the wedge pin hole B (23) of the lower column (2) and the wedge pin hole A (22) of the upper column (1), and finally screwing a fixing nut of the lower connecting piece (3) of the upper column (1) and the upper connecting piece (4) of the lower column (2), the connection work of upper prop (1) and lower prop (2) is accomplished, hoist and mount roof beam (8) again, be connected pre-buried board B (7) of roof beam (8) and pre-buried board A (6) of upper prop (1) with bolt and nut, hoist and mount floor (10) and beam column handing-over department floor (12) again, support the both ends of floor (10) and beam column handing-over department floor (12) on ear (19) of choosing of roof beam (8), continue hoisting the post, roof beam, the board of superstructure again, carry out the steel bar connection and the secondary concrete pouring work of understructure simultaneously, its work progress as follows: firstly, binding structural stirrups (26) at the joints of beams and columns, connecting reinforcements B (13) of floor slabs (12) at the joints of adjacent beams and columns, simultaneously connecting reinforcements A (11) of adjacent floor slabs (10), connecting the connecting reinforcements B (13) of the floor slabs (12) at the joints of the beams and columns and the connecting reinforcements A (11) of the adjacent floor slabs (10), connecting the connecting reinforcements A (11) of the adjacent floor slabs (10) supported on the beams (8), connecting the connecting reinforcements B (13) of the floor slabs (12) at the joints of the adjacent beams and columns supported on the beams (8), then constructing secondary cast-in-place formworks (14) and formworks under slab joints in the long edge direction of the adjacent slabs, finally pouring secondary cast-in-place concrete (15), and alternately performing hoisting work of the columns, the beams and the slabs of the upper-layer structure, connecting reinforcements of the lower-layer structure and secondary pouring concrete, until the main body engineering is finished; the method for connecting the steel bars comprises the following steps: two connecting steel bars connected with each other are pressed into a plurality of upper concave shapes (28) and lower concave shapes (29) by a special tool, the internal and external corners of the upper concave shapes (28) are right angles, the internal and external corners of the lower concave shapes (29) are right angles, after secondary cast-in-place concrete (15) is poured and strength is achieved, the left and right connected steel bars can better resist the tensile stress of the connecting steel bars due to the bond effect of the concrete and the resistance effect of the concrete filled in the upper concave shapes (28) and the lower concave shapes (29), the connecting effect of the steel bars is better than that of binding the steel bars, although the connecting effect of the steel bars is poorer than that of welding the steel bars, the efficiency of the connecting method is much faster than that of welding the steel bars.
Drawings
1-upper column, 2-lower column, 3-lower connecting piece, 4-upper connecting piece, 5-connecting hole A, 6-embedded plate A, 7-embedded plate B, 8-beam, 9-wedge pin, 10-floor, 11-connecting steel bar A, 12-beam-column junction floor, 13-connecting steel bar B, 14-secondary cast-in-place template, 15-secondary cast-in-place concrete, 16-upper column main bar, 17-lower column main bar, 18-beam stirrup, 19-lug, 20-connecting bucket A, 21-connecting bucket B, 22-wedge pin hole A, 23-wedge pin hole B, 24-connecting plate A, 25-connecting plate B, 26-structural stirrup, 27-connecting hole B, 28-upper concave shape and 29-lower concave shape.
Fig. 1 is an exploded view of the connection of an upper column 1, a lower column 2 and a beam 8.
Fig. 2 is a schematic view of the upper column 1, the lower column 2, and the beam 8 after connection.
Figure 3 is a schematic view of the connection of upper column 1, lower column 2, beam 8, floor 10 and floor 12 at the beam-column junction.
Fig. 4 is a schematic elevation view of concrete poured into the floor 12 at the junction of the upper column 1, lower column 2, beam 8, floor 10 and beam-column.
Fig. 5 is a schematic plan view of the upper column 1, the lower column 2, the beam 8, the floor slab 10, and the floor slab 12 at the beam-column junction after the concrete is poured.
Fig. 6 is a partial perspective view of fig. 4.
Figure 7 is a plan view of the floor 12 at the beam-column junction.
Fig. 8 is a plan view schematically showing concrete poured after the upper column 1, the lower column 2, the beam 8, the floor slab 10, and the floor slab 12 at the beam-column junction of the side columns are connected.
Fig. 9 is a plan view of the concrete poured after the upper column 1, the lower column 2, the beam 8, the floor slab 10, and the floor slab 12 at the beam-column junction of the corner column are connected.
Fig. 10 is an elevation view schematically showing the upper column main rib 16 of the upper column 1 welded to the lower connecting member 3 and the upper connecting member 4, and the lower column main rib 17 of the lower column 2 welded to the lower connecting member 3 and the upper connecting member 4.
Figure 11 is a schematic view of the connection of the beam 8 to the floor 10.
Fig. 12 is a plan view of the lower link 3.
Fig. 13 is a plan view of the upper link 4.
Detailed Description
Referring to fig. 1 to 13, a lower column 2 is hoisted and fixed, epoxy glue or sulfur glue is smeared on the inner surface of an upper connecting piece 4 of the lower column 2, epoxy glue or sulfur glue is smeared on the outer surface of a lower connecting piece 3 of the upper column 1, then the upper column 1 is hoisted, a connecting bucket a20 of the lower connecting piece 3 of the upper column 1 is inserted into a connecting bucket B21 of the upper connecting piece 4 of the lower column 2, the lower connecting piece 3 and the upper connecting piece 4 are temporarily fixed by using bolts and nuts, at this time, a wedge pin hole B23 of the lower column 2 and a wedge pin hole a22 of the upper column 1 are overlapped, then a wedge pin 9 is driven into a wedge pin hole B23 of the lower column 2 and a wedge pin hole a22 of the upper column 1, finally, a fixing nut of the lower connecting piece 3 of the upper column 1 and the upper connecting piece 4 of the lower column 2 is screwed, the connection work of the upper column 1 and the lower column 2 is completed, then a beam 8 is hoisted, a pre-buried plate B5 of the beam 8 is connected with a 38964 of, hoist floor 10 and beam column handing-over department floor 12 again, support the both ends of floor 10 and beam column handing-over department floor 12 on the ear 19 of choosing of roof beam 8, continue the post, roof beam, the board of hoist and mount superstructure again, carry out the steel bar connection and the work of secondary pouring concrete of substructure simultaneously, its work progress as follows: firstly, binding the constructional stirrups 26 at the joints of the beams and the columns, connecting the connecting reinforcements B13 of the floor slabs 12 at the joints of the adjacent beams and columns, simultaneously connecting the connecting reinforcements A11 of the adjacent floor slabs 10 with each other, connecting the connecting reinforcements B13 of the floor slabs 12 at the joints of the beams and columns with the connecting reinforcements A11 of the adjacent floor slabs 10 with each other, connecting the connecting reinforcements A11 of the adjacent floor slabs 10 supported on the beams 8 with each other, connecting the connecting reinforcements B13 of the floor slabs 12 at the joints of the adjacent beams and columns supported on the beams 8 with each other, constructing a secondary cast-in-place template 14 and a template under slab seams in the long edge direction of the adjacent slabs, finally pouring secondary cast-in-place concrete 15, and alternately performing the hoisting work of the columns, the beams and the slabs of the upper layer structure, the reinforcement connection of the lower layer structure and the secondary concrete pouring work until the main; the method for connecting the steel bars comprises the following steps: pressing two connecting steel bars connected with each other into a plurality of upper concave shapes 28 and lower concave shapes 29 by using a special tool, wherein the internal and external corners of the upper concave shapes 28 are right angles, the internal and external corners of the lower concave shapes 29 are right angles, after the secondary cast-in-place concrete 15 is poured and reaches the strength, the left and right connected steel bars can better resist the tensile stress of the connecting steel bars due to the bond effect of the concrete and the resistance effect of the concrete filled in the upper concave shapes 28 and the lower concave shapes 29, the connecting method of the steel bars has better connecting effect than binding the steel bars, and although the connecting effect is poorer than that of welding the steel bars, the efficiency of the connecting method is much higher than that of welding the steel bars; the lower connecting piece 3 of the upper column 1 is connected with the upper connecting piece 4 of the lower column 2 by bolts and nuts, and simultaneously, a wedge pin 9 is driven into a wedge pin hole B23 of the upper connecting piece 4 of the lower column 2 and a wedge pin hole A22 of the lower connecting piece 3 of the upper column 1 to connect a connecting bucket A20 of the lower connecting piece 3 of the upper column 1 with a connecting bucket B21 of the upper connecting piece 4 of the lower column 2, when the joint of the upper column 1 and the lower column 2 is subjected to bending moment force, the bending moment is jointly born by the plurality of connecting bolts and the plurality of wedge pins 9, so that the bending strength of the joint of the upper column 1 and the lower column 2 is greatly increased, when the joint of the upper column 1 and the lower column 2 is subjected to a shearing force, the shearing force is resisted by the joint hopper B21 of the upper connecting piece 4 of the lower column 2 and the joint hopper A20 of the lower connecting piece 3 of the upper column 1 which are superposed with each other, meanwhile, the connecting bolt resists a part of shearing force, so that the shearing strength of the connecting part of the upper column 1 and the lower column 2 is greatly improved; the joint of the column, the beam and the plate is cast into a whole by concrete, so that the vertical stability of the joint structure of the column, the beam and the plate is increased, and the horizontal stability of the joint structure of the column, the beam and the plate is increased, and the joint structure is favorable for resisting wind load and earthquake load.
Claims (1)
1. The utility model provides a reinforced concrete prefabricated building's integral connection system which characterized by: the combined type beam column is composed of an upper column (1), a lower column (2), a lower connecting piece (3), an upper connecting piece (4), an embedded plate A (6), an embedded plate B (7), a beam (8), a wedge pin (9), a floor slab (10) and a floor slab (12) at the joint of the beam column; the lower connecting piece (3) is embedded at the lower end of the upper column (1), the central axis of the upper column (1) is superposed with the central axis of the lower connecting piece (3), the upper connecting piece (4) is embedded at the upper end of the upper column (1), and the central axis of the upper column (1) is superposed with the central axis of the upper connecting piece (4); the lower connecting piece (3) consists of a connecting plate A (24) and a connecting hopper A (20), the connecting plate A (24) is uniformly provided with a plurality of connecting holes A (5), the upper end of the connecting hopper A (20) is fixed with the center of the lower end of the connecting plate A (24), the connecting hopper A (20) is in a frustum shape with a large upper part and a small lower part, the upper end of the connecting hopper A (20) is open, and the periphery of the lower part of the connecting hopper A (20) is uniformly provided with a plurality of wedge pin holes A (22); the upper connecting piece (4) consists of a connecting plate B (25) and a connecting hopper B (21), a plurality of connecting holes B (27) are uniformly distributed on the connecting plate B (25), the upper end of the connecting hopper B (21) is fixed with the center of the lower end of the connecting plate B (25), the connecting hopper B (21) is in a frustum shape with a large upper part and a small lower part, the upper end of the connecting hopper B (21) is open, a plurality of wedge pin holes B (23) are uniformly distributed on the peripheries of the upper parts of the connecting hopper B (21) and the upper column (1), and a plurality of pre-embedded plates A (6) are pre-embedded in the lower part of the upper column; each part of the lower column (2) is completely consistent with the upper column (1), when the connecting hopper A (20) of the lower connecting piece (3) of the upper column (1) is inserted into the connecting hopper B (21) of the upper connecting piece (4) of the lower column (2), the connecting hopper A (20) of the upper column (1) and the connecting hopper B (21) of the lower column (2) are mutually overlapped, the connecting plate A (24) of the upper column (1) and the connecting plate B (25) of the lower column (2) are mutually overlapped, a plurality of connecting holes A (5) of the upper column (1) and a plurality of connecting holes B (27) of the lower column (2) are in one-to-one correspondence, a plurality of wedge pin holes A (22) of the upper column (1) and a plurality of wedge pin holes B (23) of the lower column (2) are in one-to-one correspondence, the connecting hopper A (20) of the lower connecting piece (3) of the upper column (1) and the lower column (2) are filled with concrete, and the upper column (1) and the upper column (4) and the lower column (2) are respectively filled with the upper rib (16) and the upper column (4) Welding, wherein two ends of a lower column main rib (17) of the lower column (2) are respectively welded with an upper connecting piece (4) and a lower connecting piece (3) of the lower column (2); the embedded plates B (7) are embedded in two ends of the beam (8), bolt connecting holes of the embedded plates A (6) of the upper column (1) are in one-to-one correspondence with bolt connecting holes of the embedded plates B (7) of the beam (8), the cross section of the beam (8) is provided with two symmetrically arranged lugs (19), the top elevation of the two lugs (19) is consistent with the bottom elevation of a floor slab (12) at the joint of the floor slab (10) and the beam column, and the upper part of a beam stirrup (18) of the beam (8) is exposed; the periphery of the floor (10) is provided with a plurality of connecting reinforcing steel bars A (11); a plurality of connecting steel bars B (13) are arranged on the periphery of the floor (12) at the joint of the beam and the column; the construction process of the integral connecting system is as follows: hoisting and fixing a lower column (2), coating epoxy glue or sulfur glue on the inner surface of an upper connecting piece (4) of the lower column (2), coating epoxy glue or sulfur glue on the outer surface of a lower connecting piece (3) of the upper column (1), hoisting the upper column (1), inserting a connecting hopper A (20) of the lower connecting piece (3) of the upper column (1) into a connecting hopper B (21) of the upper connecting piece (4) of the lower column (2), temporarily fixing the lower connecting piece (3) and the upper connecting piece (4) by using bolts and nuts, at the moment, superposing a wedge pin hole B (23) of the lower column (2) and a wedge pin hole A (22) of the upper column (1), driving a wedge pin (9) into the wedge pin hole B (23) of the lower column (2) and the wedge pin hole A (22) of the upper column (1), and finally screwing a fixing nut of the lower connecting piece (3) of the upper column (1) and the upper connecting piece (4) of the lower column (2), the connection work of upper prop (1) and lower prop (2) is accomplished, hoist and mount roof beam (8) again, be connected pre-buried board B (7) of roof beam (8) and pre-buried board A (6) of upper prop (1) with bolt and nut, hoist and mount floor (10) and beam column handing-over department floor (12) again, support the both ends of floor (10) and beam column handing-over department floor (12) on ear (19) of choosing of roof beam (8), continue hoisting the post, roof beam, the board of superstructure again, carry out the steel bar connection and the secondary concrete pouring work of understructure simultaneously, its work progress as follows: firstly, binding structural stirrups (26) at the joints of beams and columns, connecting reinforcements B (13) of floor slabs (12) at the joints of adjacent beams and columns, simultaneously connecting reinforcements A (11) of adjacent floor slabs (10), connecting the connecting reinforcements B (13) of the floor slabs (12) at the joints of the beams and columns and the connecting reinforcements A (11) of the adjacent floor slabs (10), connecting the connecting reinforcements A (11) of the adjacent floor slabs (10) supported on the beams (8), connecting the connecting reinforcements B (13) of the floor slabs (12) at the joints of the adjacent beams and columns supported on the beams (8), then constructing secondary cast-in-place formworks (14) and formworks under slab joints in the long edge direction of the adjacent slabs, finally pouring secondary cast-in-place concrete (15), and alternately performing hoisting work of the columns, the beams and the slabs of the upper-layer structure, connecting reinforcements of the lower-layer structure and secondary pouring concrete, until the main body engineering is finished; the method for connecting the steel bars comprises the following steps: two connecting steel bars connected with each other are pressed into a plurality of upper concave shapes (28) and lower concave shapes (29) by a special tool, the internal and external corners of the upper concave shapes (28) are right angles, the internal and external corners of the lower concave shapes (29) are right angles, after secondary cast-in-place concrete (15) is poured and strength is achieved, the left and right connecting steel bars can better resist the tensile stress of the connecting steel bars due to the bond wrapping effect of the concrete and the resistance effect of the concrete filled in the upper concave shapes (28) and the lower concave shapes (29).
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| CN103104040A (en) * | 2013-03-08 | 2013-05-15 | 郑州大学 | Assembled framework beam-column joint adopting vertical connection and construction method thereof |
| CN105804241A (en) * | 2016-03-22 | 2016-07-27 | 哈尔滨工业大学 | Single-layer prefabricated assembly type reinforced concrete beam-column joint |
| CN106499122A (en) * | 2016-11-03 | 2017-03-15 | 荆门创佳机械科技有限公司 | A kind of spiral pier nose docking facilities |
| CN207436373U (en) * | 2017-09-12 | 2018-06-01 | 中国石油大学(华东) | A kind of assembled is bolted steel core concrete column entirely |
| CN208267198U (en) * | 2018-03-30 | 2018-12-21 | 河北众鹏新材料科技有限公司 | A kind of building profiled sheet and combination floor support plate |
| CN208023842U (en) * | 2018-04-03 | 2018-10-30 | 中民筑友科技投资有限公司 | A kind of bar connecting mechanism |
| CN109372186A (en) * | 2018-12-03 | 2019-02-22 | 北京工业大学 | Divide the assembling framework system of limb combined special-shaped column and shock absorption wall with concrete filled steel tube |
| CN109372180A (en) * | 2018-12-05 | 2019-02-22 | 中国建筑标准设计研究院有限公司 | Prefabricated sandwich heat preservation wallboard stainless steel adapting piece, heat-insulation wall plate and construction method |
| CN109339347A (en) * | 2018-12-12 | 2019-02-15 | 上海宝冶集团有限公司 | A kind of assembled architecture reinforcing bar connector and its application method |
| CN110202689A (en) * | 2019-07-08 | 2019-09-06 | 湖北思泽新能源科技有限公司 | A kind of hydraulic tongs connecting reinforcing bar |
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