CN115324196B - Low-layer assembled concrete structure system - Google Patents
Low-layer assembled concrete structure system Download PDFInfo
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- CN115324196B CN115324196B CN202211060487.3A CN202211060487A CN115324196B CN 115324196 B CN115324196 B CN 115324196B CN 202211060487 A CN202211060487 A CN 202211060487A CN 115324196 B CN115324196 B CN 115324196B
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- 239000004567 concrete Substances 0.000 title claims abstract description 30
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 75
- 239000010959 steel Substances 0.000 claims abstract description 75
- 238000010008 shearing Methods 0.000 claims abstract description 7
- 238000005086 pumping Methods 0.000 claims description 2
- 239000011178 precast concrete Substances 0.000 abstract description 12
- 238000011065 in-situ storage Methods 0.000 abstract description 8
- 238000010276 construction Methods 0.000 description 14
- 238000010586 diagram Methods 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000005266 casting Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010952 in-situ formation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000009466 transformation Effects 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
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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
- E04B1/02—Structures consisting primarily of load-supporting, block-shaped, or slab-shaped elements
- E04B1/04—Structures consisting primarily of load-supporting, block-shaped, or slab-shaped elements the elements consisting of concrete, e.g. reinforced concrete, or other stone-like material
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
- E04B2/56—Load-bearing walls of framework or pillarwork; Walls incorporating load-bearing elongated members
- E04B2/64—Load-bearing walls of framework or pillarwork; Walls incorporating load-bearing elongated members with elongated members of concrete
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B5/00—Floors; Floor construction with regard to insulation; Connections specially adapted therefor
- E04B5/02—Load-carrying floor structures formed substantially of prefabricated units
- E04B5/04—Load-carrying floor structures formed substantially of prefabricated units with beams or slabs of concrete or other stone-like material, e.g. asbestos cement
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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
- E04B5/00—Floors; Floor construction with regard to insulation; Connections specially adapted therefor
- E04B5/16—Load-carrying floor structures wholly or partly cast or similarly formed in situ
- E04B5/32—Floor structures wholly cast in situ with or without form units or reinforcements
- E04B5/36—Floor structures wholly cast in situ with or without form units or reinforcements with form units as part of the floor
- E04B5/38—Floor structures wholly cast in situ with or without form units or reinforcements with form units as part of the floor with slab-shaped form units acting simultaneously as reinforcement; Form slabs with reinforcements extending laterally outside the element
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/14—Conveying or assembling building elements
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Mechanical Engineering (AREA)
- Rod-Shaped Construction Members (AREA)
Abstract
The invention discloses a low-layer assembled concrete structure system which comprises a prefabricated hole-drawing hidden column, a prefabricated hole-drawing shear wall, a prefabricated hole-drawing beam, a prefabricated floor slab and a roof cast-in-situ concrete layer, wherein a plurality of first preformed holes which are vertically distributed are formed in the prefabricated hole-drawing hidden column and the prefabricated hole-drawing shear wall, a first steel pipe is inserted into the first preformed holes, a first grouting layer is cast-in-situ formed in the first steel pipe, first vertical connecting steel bars are embedded in the first grouting layer, a plurality of second preformed holes which are vertically distributed and second vertical connecting steel bars embedded in the center of the second preformed holes are arranged in the prefabricated hole-drawing beam, a second steel pipe is inserted into the second preformed holes, and a second grouting layer is cast-in-situ formed in the second steel pipe. The first vertical connecting structure and the second vertical connecting structure have strong bearing capacity and strong horizontal shearing resistance, can improve the connection stability among a plurality of precast concrete members, and solve the problem of heavy weight of the existing precast concrete members.
Description
Technical Field
The invention belongs to the technical field of assembly type buildings, and particularly relates to a low-layer assembly type concrete structure system.
Background
The assembled building has the characteristics of production standardization, construction mechanization and management informatization, and the development of the assembled building can save a large amount of resources, actively promote technical innovation, improve building quality and promote transformation upgrading of building enterprises, is the fundamental conversion of a building production mode from extensive production to intensive production, and is the necessary way and development direction of modernization of the building industry. In recent years, the assembled building has been rapidly developed in China, but the following defects also exist: 1. the aim is to improve the assembly rate and reduce the site wet workload, so that the prefabricated concrete member has great weight, and the safety of the site hoisting assembly is difficult to ensure; 2. the common vertical connecting structure only depends on embedded bars and a post-cast high-strength grouting material layer, and has the defects of insufficient connecting strength and poor stability in the practical application process; accordingly, a low-rise fabricated concrete structural system that is convenient to assemble in the field and reliable in connection should be provided.
Disclosure of Invention
The invention aims to solve the technical problems in the prior art, and provides a low-layer assembled concrete structure system which is reasonable in design, high in bearing capacity of a first vertical connecting structure and a second vertical connecting structure, high in horizontal shearing resistance, capable of improving connection stability among a plurality of precast concrete members, solving the problem of heavy weight of the existing precast concrete members, and capable of improving assembly precision of a precast hole-drawing hidden column and a precast hole-drawing shear wall in horizontal and vertical directions.
In order to solve the technical problems, the invention adopts the following technical scheme: a low-rise assembled concrete structure system is characterized in that: the prefabricated hole-drawing shear wall comprises a prefabricated hole-drawing hidden column and a prefabricated hole-drawing shear wall connected to the prefabricated hole-drawing hidden column, wherein a prefabricated hole-drawing beam and a prefabricated floor slab are paved on the top end of the prefabricated hole-drawing shear wall and the top end of the prefabricated hole-drawing hidden column, the top end of the prefabricated hole-drawing shear wall, the prefabricated hole-drawing beam and the prefabricated floor slab are connected through a cast-in-place formed roof cast-in-place concrete layer, a plurality of first preformed holes which are vertically distributed are formed in the interior of the prefabricated hole-drawing hidden column and the interior of the prefabricated hole-drawing shear wall, first steel pipes are inserted into the first preformed holes, a first grouting layer is formed in the first steel pipes in a cast-in-place mode, a plurality of second preformed holes which are vertically distributed and the second steel pipes which are embedded in the center of the second preformed holes are connected in a cast-in-place mode are formed in the second preformed holes, and annular steel pipes are connected to the two annular steel pipes or the annular steel pipes are connected to the annular side faces of the first steel pipes in a sleeved mode.
The low-layer assembled concrete structure system is characterized in that: the prefabricated hole-drawing hidden column comprises a prefabricated hole-drawing hidden column body and is characterized in that an assembly lug is arranged on one assembly surface of the prefabricated hole-drawing hidden column body, a reserved through hole which is vertically arranged and matched with the first reserved hole is arranged on the assembly lug, and an assembly notch matched with the assembly lug is arranged on one assembly surface of the prefabricated hole-drawing shear wall.
The low-layer assembled concrete structure system is characterized in that: and the top end of the prefabricated hole-drawing hidden column and the top end of the prefabricated hole-drawing shear wall are provided with prefabricated hole-drawing beam mounting grooves.
The low-layer assembled concrete structure system is characterized in that: rectangular abdication channels communicated with the first preformed holes are formed in the inner side face of the bottom end of the prefabricated hole-drawing shear wall, and the number of the rectangular abdication channels is equal to that of the first steel pipes installed on the prefabricated hole-drawing shear wall and corresponds to that of the first steel pipes one by one.
The low-layer assembled concrete structure system is characterized in that: the number of the horizontal annular connecting bars pre-buried on any one side of the precast floor slab is multiple, horizontal straight bars are pre-buried on four sides of the precast floor slab, and the horizontal straight bars are located below the horizontal annular connecting bars.
Compared with the prior art, the invention has the following advantages:
1. according to the invention, the plurality of first preformed holes are vertically arranged in the inner part of the preformed hole hidden column and the inner part of the preformed hole shear wall, and the plurality of second preformed holes are vertically arranged in the inner part of the preformed hole beam, so that when the precast hole hidden column, the precast hole shear wall and the precast hole Kong Liangjun are precast concrete members in actual use, the first preformed holes and the second preformed holes can play the role of lightening holes, the weight of the precast hole hidden column, the precast hole shear wall or the precast hole beam can be lightened, and the problem of the self weight of the existing precast concrete members is solved.
2. According to the invention, the assembly convex block is arranged on one assembly surface of the prefabricated hole-drawing hidden column, and the assembly notch is arranged on one assembly surface of the prefabricated hole-drawing shear wall, so that the assembly precision of the prefabricated hole-drawing hidden column and the prefabricated hole-drawing shear wall in the horizontal and vertical directions can be improved through the cooperation between the assembly convex block and the assembly notch during actual assembly.
3. In the first connection node in the step 202 and the second connection node in the step 302, a first vertical connection structure is formed by the first vertical connection steel bars, the first steel pipes and the first grouting layers, and the connection between the prefabricated hole-drawing hidden columns and the prefabricated hole-drawing shear wall, the connection between the prefabricated hole-drawing hidden columns and the prefabricated hole-drawing shear wall of the prefabricated holes Kong Lianghuo and the prefabricated hole-drawing beam can be realized by utilizing a plurality of first vertical connection structures; in the third connecting node in the fourth step, a second vertical connecting structure is formed by a second vertical connecting steel bar, a second steel pipe and a second grouting layer together, and the connection between the prefabricated floor slab and the prefabricated hole drawing beam can be realized by utilizing a plurality of second vertical connecting structures; compared with the vertical connecting structure in the prior art, the bearing capacity of the first vertical connecting structure and the bearing capacity of the second vertical connecting structure are high, the horizontal shearing resistance is high, and the connection stability between a plurality of precast concrete members can be improved.
4. The construction method is reasonable in design, high in construction safety and convenient to popularize and apply.
In summary, the first vertical connecting structure and the second vertical connecting structure have strong bearing capacity and strong capability of resisting horizontal shearing, can improve the connection stability among a plurality of precast concrete members, solve the problem of heavy weight of the existing precast concrete members, and can improve the assembly precision of the precast drawing hole hidden column and the precast drawing hole shear wall in the horizontal and vertical directions.
The invention is described in further detail below with reference to the drawings and examples.
Drawings
Fig. 1 is a schematic structural view of the present invention.
FIG. 2 is a schematic diagram of the connection relationship between a prefabricated hole-drawing hidden column and a prefabricated hole-drawing shear wall according to the invention.
FIG. 3 is a schematic diagram of the connection relationship between the prefabricated perforated shear wall, the prefabricated perforated beam and the prefabricated floor slab.
FIG. 4 is a schematic diagram of the connection relationship between a prefabricated hole-drawing hidden column, a prefabricated hole-drawing beam and a prefabricated floor slab.
Fig. 5 is a schematic structural diagram of a first connection node according to the present invention.
Fig. 6 is a schematic diagram of the connection relationship between a second connection node and a prefabricated floor slab according to the present invention.
Fig. 7 is a schematic structural diagram of a third connection node according to the present invention.
Reference numerals illustrate:
1-a first vertical connecting bar; 2-a first steel pipe; 3-a first grouting layer;
4-prefabricating a drawer Kong Anzhu; 4-1-fitting the bumps; 4-1-reserving through holes;
5-prefabricating the hole-drawing shear wall; 5-1-an assembly notch; 5-2-rectangular yield channels;
6, prefabricating a hole drawing beam; 7-prefabricating a floor slab; 8-a first preformed hole;
9-a second preformed hole; 10-a second vertical connecting bar; 11-a second steel pipe;
12-a second grouting layer; 13-horizontal annular connecting bars; 14-horizontal straight ribs;
15, prefabricating a hole drawing beam mounting groove; 16-roof cast-in-situ concrete layer.
Detailed Description
As shown in fig. 1 to 7, the prefabricated hollow shear wall comprises a prefabricated hollow hidden column 4 and a prefabricated hollow shear wall 5 connected to the prefabricated hollow hidden column 4, wherein a prefabricated hollow beam 6 and a prefabricated floor slab 7 are respectively paved on the top end of the prefabricated hollow shear wall 5 and the top end of the prefabricated hollow hidden column 4, the top end of the prefabricated hollow shear wall 5, the prefabricated hollow beam 6 and the prefabricated floor slab 7 are connected through a cast-in-place formed roof cast-in-place concrete layer 16, a plurality of first reserved holes 8 which are vertically distributed are respectively formed in the prefabricated hollow hidden column 4 and the prefabricated hollow shear wall 5, a first steel pipe 2 is inserted into the first reserved holes 8, a first vertical connecting steel bar 1 is embedded in the first grouting layer 3, a plurality of vertical second reserved holes 9 and a second pre-embedded steel bar 10 which is embedded in the first grouting layer 3 are respectively arranged in a cast-in-place mode, a second reserved hole 9 is formed in the second grouting layer 11 is sleeved with a second annular steel pipe 11, and a second reserved hole 11 is formed in the second steel pipe 11 or a ring-shaped steel pipe 11 is inserted in the second reserved hole, and the second reserved hole 11 is connected with the second annular steel pipe 11 in the second reserved hole, and the second steel pipe is connected with the annular steel pipe 11 in a sleeved mode.
In this embodiment, through the inside of prefabricated hole dark pillar 4 with the inside of prefabricated hole shear force wall 5 all sets up a plurality of vertical first preformed holes 8 of laying, through set up a plurality of vertical second preformed holes 9 of laying in the inside of prefabricated hole roof beam 6, during the in-service use, prefabricated hole dark pillar 4, prefabricated hole shear force wall 5 and prefabricated hole roof beam 6 are precast concrete member, and first preformed holes 8 and second preformed holes 9 can play the effect of lightening the hole, can alleviate the weight of hoist and mount prefabricated hole dark pillar 4, prefabricated hole shear force wall 5 or prefabricated hole roof beam 6, have solved current precast concrete member weight problem.
In actual construction, when assembling the pre-fabricated hole-drawing hidden column 4 and the pre-fabricated hole-drawing shear wall 5, it is necessary to select a first pre-hole 8 required for assembly from a plurality of the first pre-holes 8 formed in the pre-fabricated hole-drawing shear wall 5, and when assembling between the pre-fabricated hole-drawing hidden column 4 and the pre-fabricated hole-drawing beam 6 or between the pre-fabricated hole-drawing shear wall 5 and the pre-fabricated hole-drawing beam 6, it is necessary to first select a required first pre-hole 8 from a plurality of the first pre-holes 8 formed in the pre-fabricated hole-drawing hidden column 4 or the pre-fabricated hole-drawing shear wall 5, which is because: on prefabricated hole-drawing hidden column 4 and prefabricated hole-drawing shear wall 5, a plurality of first preformed holes 8 need be used as the lightening hole throughout, namely a plurality of first preformed holes 8 need not cartridge first steel pipe 2 throughout, and when a plurality of first preformed holes 8 aperture structures are the same, have the prefabricated hole-drawing hidden column 4 of being convenient for and prefabricated hole-drawing shear wall 5 prefabricated processing's advantage.
During actual construction, when the assembly between the prefabricated hole-drawing hidden column 4 and the prefabricated hole-drawing shear wall 5, between the prefabricated hole-drawing hidden column 4 and the prefabricated hole-drawing beam 6 or between the prefabricated hole-drawing shear wall 5 and the prefabricated hole-drawing beam 6 is carried out, a first vertical connecting structure is formed by the first vertical connecting steel bar 1, the first steel pipe 2 and the first grouting layer 3 together, and the connection between the prefabricated hole-drawing hidden column 4 and the prefabricated hole-drawing shear wall 5 and between the prefabricated hole-drawing hidden column 4 and the prefabricated hole-drawing beam 6 or between the prefabricated hole-drawing shear wall 5 and the prefabricated hole-drawing beam 6 can be realized by utilizing a plurality of first vertical connecting structures; when the prefabricated floor slab 7 and the prefabricated hole-drawing beam 6 are assembled, a second vertical connecting structure is formed by the second vertical connecting steel bars 10, the second steel pipes 11 and the second grouting layers 12, and the connection between the prefabricated floor slab 7 and the prefabricated hole-drawing beam 6 can be realized by utilizing a plurality of second vertical connecting structures; compared with the vertical connecting structure in the prior art, the bearing capacity of the first vertical connecting structure and the bearing capacity of the second vertical connecting structure are high, the horizontal shearing resistance is high, and the connection stability between a plurality of precast concrete members can be improved.
As shown in fig. 3 and 4, in this embodiment, an assembling bump 4-1 is disposed on an assembling surface of the prefabricated hole-drawing hidden column 4, a reserved through hole 4-1-1 vertically disposed and matched with the first reserved hole 8 is disposed on the assembling bump 4-1, and an assembling notch 5-1 matched with the assembling bump 4-1 is disposed on an assembling surface of the prefabricated hole-drawing shear wall 5.
In this embodiment, the assembly bump 4-1 is disposed on one assembly surface of the prefabricated hole-drawing hidden column 4, and the assembly notch 5-1 is disposed on one assembly surface of the prefabricated hole-drawing shear wall 5, so that during actual assembly, the assembly precision of the prefabricated hole-drawing hidden column 4 and the prefabricated hole-drawing shear wall 5 in the horizontal and vertical directions can be improved through the cooperation between the assembly bump 4-1 and the assembly notch 5-1.
In this embodiment, as shown in fig. 2, the top ends of the prefabricated hole-drawing dark columns 4 and the top ends of the prefabricated hole-drawing shear walls 5 are provided with prefabricated hole-drawing beam mounting grooves 15.
In this embodiment, as shown in fig. 1, 2 and 3, rectangular abdication channels 5-2 that are communicated with the first preformed holes 8 are formed on the inner side surface of the bottom end of the preformed hole shear wall 5, and the number of the rectangular abdication channels 5-2 is equal to the number of the first steel pipes 2 installed on the preformed hole shear wall 5, and corresponds to one another.
In this embodiment, a rectangular yielding channel 5-2 is formed on an inner side surface of a bottom end of the prefabricated hole-drawing shear wall 5, and the rectangular yielding channel 5-2 is communicated with the first reserved hole 8, and is aimed at: the horizontal hoisting of the prefabricated hole-drawing shear wall 5 is convenient, so that the first vertical connecting steel bars 1 of the prefabricated hole-drawing shear wall 5 of the next layer can enter the first reserved holes 8 of the prefabricated hole-drawing shear wall 5 of the previous layer through the rectangular abdication channels 5-2, the top of the first vertical connecting steel bars 1 of the prefabricated hole-drawing shear wall 5 of the previous layer is not required to be hoisted to the prefabricated hole-drawing shear wall 5 of the next layer, and the collision between the prefabricated hole-drawing shear wall 5 of the previous layer and the first vertical connecting steel bars 1 of the prefabricated hole-drawing shear wall 5 of the next layer can be avoided.
As shown in fig. 1, 3 and 5 to 7, in this embodiment, the number of horizontal annular connection bars 13 pre-buried on any one side surface of the prefabricated floor slab 7 is multiple, and horizontal straight bars 14 are pre-buried on four side surfaces of the prefabricated floor slab 7, and the horizontal straight bars 14 are located below the horizontal annular connection bars 13.
In this embodiment, the horizontal annular connecting steel bars 13 are sleeved on the first steel pipe 2 or the second steel pipe 11, so that preliminary horizontal positioning connection of the precast floor slab 7 at the tops of the precast perforated hidden columns 4, the precast perforated shear wall 5 and the precast perforated beam 6 can be realized, and after the cast-in-situ formation of the roof cast-in-situ concrete layer 16, the plurality of horizontal annular connecting steel bars 13 and the plurality of horizontal straight ribs 14 can improve the connection strength between the roof cast-in-situ concrete layer 16 and the precast floor slab 7.
As shown in fig. 1, in actual construction, the construction method of the low-layer fully assembled concrete hole-pumping shear wall structure system comprises the following steps:
step one, hoisting the prefabricated hole-drawing hidden column 4:
hoisting the prefabricated hole-drawing hidden column 4, and connecting the prefabricated hole-drawing hidden column 4, the prefabricated ground beam and the prefabricated bottom plate in a socket grouting connection mode;
step two, hoisting the prefabricated hole-drawing shear wall 5 and constructing a first connecting node:
wherein, the first connection node refers to a connection node formed between the prefabricated hole-drawing hidden column 4 and the prefabricated hole-drawing shear wall 5; the concrete construction process comprises the following steps:
step 201, hoisting the prefabricated hole-drawing shear wall 5 along the horizontal direction to enable the assembly lug 4-1 to be matched with the assembly notch 5-1;
step 202, selecting a first preformed hole 8 required by the first connection node from a plurality of first preformed holes 8 formed in the prefabricated hole-drawing shear wall 5, then inserting the first steel pipe 2 into the first preformed hole 8 required by the first connection node, temporarily fixing the first vertical connection reinforcing steel bar 1 in the first steel pipe 2, then pouring high-strength grouting material into the first steel pipe 2 to form a first grouting layer 3, completing construction of the first connection node, and realizing connection between the prefabricated hole-drawing hidden column 4 and the prefabricated hole-drawing shear wall 5;
step three, hoisting the prefabricated hole drawing beam 6 and constructing a second connecting node:
the connection nodes formed between the prefabricated hole-drawing hidden columns 4 and the prefabricated hole-drawing beams 6 are second connection nodes; the concrete construction process comprises the following steps:
step 301, hoisting a prefabricated hole-drawing beam 6, and clamping one end of the prefabricated hole-drawing beam 6 in the prefabricated hole-drawing beam mounting groove 15;
step 302, selecting a first preformed hole 8 required by the second connection node from a plurality of first preformed holes 8 formed in the preformed hole hidden column 4 or the preformed hole shear wall 5, then inserting the first steel pipe 2 into the first preformed hole 8 required by the second connection node, temporarily fixing the first vertical connection steel bar 1 in the first steel pipe 2, then pouring high-strength grouting material into the first steel pipe 2 to form a first grouting layer 3, completing construction of a second connection node, and realizing connection between the preformed hole hidden column 4 and the preformed hole beam 6 or between the preformed hole shear wall 5 and the preformed hole beam 6;
step four, hoisting the precast floor slabs 7 and constructing a third connecting node:
wherein the third connection node refers to a connection node formed between the prefabricated hole drawing beam 6 and the prefabricated floor slab 7; the concrete construction process comprises the following steps:
step 401, hoisting the precast floor slab 7, and sleeving the horizontal annular connecting steel bars 13 of the precast floor slab 7 on the first steel pipes 2 filled with the high-strength grouting material in the step 202 and the step 302;
step 402, inserting a second steel pipe 11 into a second preformed hole 9, temporarily fixing a second vertical connecting steel bar 10 in the second steel pipe 11, and then pouring high-strength grouting material into the second steel pipe 11 to form a second grouting layer 12, so as to finish construction of a third connecting node and realize connection between the prefabricated floor slab 7 and the prefabricated hole drawing beam 6;
fifthly, construction of a roof cast-in-situ concrete layer 16:
and casting micro-expansion fine stone concrete into a casting cavity formed among the prefabricated hole-drawing hidden column 4, the prefabricated hole-drawing shear wall 5, the prefabricated hole-drawing beam 6 and the prefabricated floor slab 7 to form a roof cast-in-situ concrete layer 16.
In this embodiment, in step 201, when the prefabricated hole-drawing shear wall 5 is lifted in the horizontal direction, the outer drain end of the first vertical connecting steel bar 1 of the prefabricated hole-drawing shear wall 5 of the next layer enters the second preformed hole 9 of the prefabricated hole-drawing shear wall 5 of the current lifting layer through the rectangular abdication channel 5-2;
in step 202, after the high-strength grouting material is poured into the first steel pipe 2 to form the first grouting layer 3, mortar needs to be filled into the rectangular yielding channel 5-2, and the rectangular yielding channel 5-2 is plugged.
The foregoing description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and any simple modification, variation and equivalent structural changes made to the above embodiment according to the technical substance of the present invention still fall within the scope of the technical solution of the present invention.
Claims (4)
1. A low-rise assembled concrete structure system is characterized in that: the prefabricated hole-pumping shear wall (5) comprises a prefabricated pump Kong Anzhu (4) and a prefabricated pump hole shear wall (5) connected to the prefabricated pump Kong Anzhu (4), wherein the top end of the prefabricated pump hole shear wall (5) and the top end of the prefabricated pump Kong Anzhu (4) are respectively paved with a prefabricated pump hole beam (6) and a prefabricated floor (7), the top end of the prefabricated pump Kong Anzhu (4) and the top end of the prefabricated pump hole shear wall (5), the prefabricated pump hole beam (6) and the prefabricated floor (7) are connected through a cast-in-place formed roof cast-in-place concrete layer (16), a plurality of first preformed holes (8) which are vertically distributed are formed in the prefabricated pump Kong Anzhu (4) and the prefabricated pump hole shear wall (5), first steel pipes (2) are inserted into the first preformed steel pipes, first grouting layers (3) are embedded in the first vertical connection (1) in the first steel pipes (2), a plurality of second preformed steel pipes (9) which are vertically distributed in the first preformed steel pipes (9) are embedded in the first preformed steel pipes (2), second preformed steel pipes (11) are embedded in the second preformed steel pipes (11), horizontal annular connecting steel bars (13) are pre-buried on two end faces of the prefabricated hole drawing beam (6) and four side faces of the prefabricated floor slab (7), and the horizontal annular connecting steel bars (13) are sleeved on the first steel pipe (2) or the second steel pipe (11); an assembling lug (4-1) is arranged on one assembling surface of the prefabricated drawing Kong Anzhu (4), a reserved through hole (4-1-1) which is vertically arranged and matched with the first reserved hole (8) is arranged on the assembling lug (4-1), and an assembling notch (5-1) matched with the assembling lug (4-1) is arranged on one assembling surface of the prefabricated drawing shear wall (5).
2. A low-rise fabricated concrete structure system according to claim 1, wherein: the top end of the prefabricated suction Kong Anzhu (4) and the top end of the prefabricated suction shear wall (5) are provided with prefabricated suction beam mounting grooves (15).
3. A low-rise fabricated concrete structure system according to claim 1, wherein: rectangular abdication channels (5-2) communicated with the first preformed holes (8) are formed in the inner side face of the bottom end of the preformed hole shearing wall (5), and the number of the rectangular abdication channels (5-2) is equal to the number of the first steel pipes (2) arranged on the preformed hole shearing wall (5) and corresponds to one.
4. A low-rise fabricated concrete structure system according to claim 1, wherein: the number of the horizontal annular connecting steel bars (13) pre-buried on any one side face of the precast floor slab (7) is multiple, horizontal straight steel bars (14) are pre-buried on four side faces of the precast floor slab (7), and the horizontal straight steel bars (14) are located below the horizontal annular connecting steel bars (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211060487.3A CN115324196B (en) | 2022-08-31 | 2022-08-31 | Low-layer assembled concrete structure system |
Applications Claiming Priority (1)
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| CN214833726U (en) * | 2021-08-02 | 2021-11-23 | 贺州学院 | A prefabricated steel tube bundle shear wall |
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| KR101219788B1 (en) * | 2012-08-13 | 2013-01-09 | (주)대우건설 | Method for constructing precast concrete floor plate for bridge with introducing compressive force using hydraulic jack |
| CN103696514A (en) * | 2013-12-26 | 2014-04-02 | 北京工业大学 | T-frame component and lightweight concrete body fabricated shear wall and connection structure thereof |
| CN107201792A (en) * | 2017-07-17 | 2017-09-26 | 广东省建科建筑设计院有限公司 | High-rise assembled single row of holes precast shear wall and its assembling structure and construction method |
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