CN115162556B - External wall panel assembly method for synchronous construction with main body structure - Google Patents
External wall panel assembly method for synchronous construction with main body structure Download PDFInfo
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- CN115162556B CN115162556B CN202210820787.0A CN202210820787A CN115162556B CN 115162556 B CN115162556 B CN 115162556B CN 202210820787 A CN202210820787 A CN 202210820787A CN 115162556 B CN115162556 B CN 115162556B
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- 238000010276 construction Methods 0.000 title claims abstract description 59
- 238000000034 method Methods 0.000 title claims abstract description 36
- 230000001360 synchronised effect Effects 0.000 title claims description 8
- 238000009434 installation Methods 0.000 claims abstract description 22
- 238000012545 processing Methods 0.000 claims abstract description 20
- 238000011282 treatment Methods 0.000 claims abstract description 14
- 238000004519 manufacturing process Methods 0.000 claims abstract description 8
- 238000012423 maintenance Methods 0.000 claims abstract description 4
- 239000011150 reinforced concrete Substances 0.000 claims description 55
- 239000010410 layer Substances 0.000 claims description 49
- 239000004567 concrete Substances 0.000 claims description 28
- 229910000831 Steel Inorganic materials 0.000 claims description 17
- 239000010959 steel Substances 0.000 claims description 17
- 239000000463 material Substances 0.000 claims description 12
- 239000012791 sliding layer Substances 0.000 claims description 10
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims description 6
- 238000001125 extrusion Methods 0.000 claims description 6
- 230000000149 penetrating effect Effects 0.000 claims description 6
- 239000004033 plastic Substances 0.000 claims description 5
- 229920003023 plastic Polymers 0.000 claims description 5
- 230000003014 reinforcing effect Effects 0.000 claims description 5
- 239000011083 cement mortar Substances 0.000 claims description 4
- 238000011900 installation process Methods 0.000 claims description 4
- 238000003754 machining Methods 0.000 claims description 4
- 239000011440 grout Substances 0.000 claims description 3
- 238000011065 in-situ storage Methods 0.000 claims description 3
- 230000002787 reinforcement Effects 0.000 claims description 3
- 238000004381 surface treatment Methods 0.000 claims description 3
- 238000005056 compaction Methods 0.000 claims 1
- 238000010422 painting Methods 0.000 abstract description 5
- 239000011449 brick Substances 0.000 abstract description 3
- 238000011418 maintenance treatment Methods 0.000 abstract 1
- 238000002360 preparation method Methods 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 6
- 239000002002 slurry Substances 0.000 description 5
- 230000007547 defect Effects 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 238000004321 preservation Methods 0.000 description 3
- 238000005336 cracking Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000006260 foam Substances 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
- 230000002093 peripheral effect Effects 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 239000002990 reinforced plastic Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000035939 shock 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
- E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B11/00—Apparatus or processes for treating or working the shaped or preshaped articles
- B28B11/24—Apparatus or processes for treating or working the shaped or preshaped articles for curing, setting or hardening
- B28B11/245—Curing concrete articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B13/00—Feeding the unshaped material to moulds or apparatus for producing shaped articles; Discharging shaped articles from such moulds or apparatus
- B28B13/02—Feeding the unshaped material to moulds or apparatus for producing shaped articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B23/00—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects
- B28B23/02—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects wherein the elements are reinforcing members
-
- 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
-
- 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
-
- 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
- E04G21/24—Safety or protective measures preventing damage to building parts or finishing work during construction
- E04G21/26—Strutting means for wall parts; Supports or the like, e.g. for holding in position prefabricated walls
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Manufacturing & Machinery (AREA)
- Conveying And Assembling Of Building Elements In Situ (AREA)
Abstract
The invention discloses an external wall panel assembly method synchronously constructed with a main body structure, and the preparation process comprises a factory processing and manufacturing stage and a site installation and construction stage, wherein the factory processing and manufacturing stage mainly carries out the manufacture and maintenance of a prefabricated wall body, and comprises the processing treatment, pouring treatment, maintenance treatment and transportation treatment of the prefabricated wall body; the construction stage of field installation mainly comprises the steps of construction field pretreatment, construction installation treatment and later adjustment of construction, wherein the construction stage mainly comprises the construction of the prefabricated wall body and the main body. The invention mainly overcomes the problems that the outer wall body needs monolithic masonry construction, the structural columns are not flexibly connected, the process requirement of the top brick at the joint of the structural columns and the beam bottom is high, the inner and outer wall painting is a wet process, the whole outer wall construction consumes a long time, and the mounting difficulty and the construction problem of the assembled building in the prior art are overcome, thereby effectively improving the feasibility and the efficiency of the construction of the assembled outer wall board.
Description
Technical Field
The invention relates to the technical field of outer wall plate processing, in particular to an outer wall plate assembly method for synchronous construction with a main body structure.
Background
At present, along with the high-speed development of building technology, the construction of the outer wall of a main building body is an important link in engineering construction, and the outer wall is an indispensable part in the construction process of the building engineering. For a multi-story high-rise building, the traditional external wall construction method comprises the following steps: the main body structure construction, the peripheral retaining wall masonry and the internal and external painting are mostly performed on site, so that the defects of long time consumption and great labor consumption exist.
In order to solve the construction problem of the traditional external wall panel, the prior art shortens the construction period by using an assembly type building, namely, a building assembled by prefabricated components on a construction site, which is called an assembly type building. Along with the continuous progress development of modern industrialization, the assembled building is popularized and applied, and the building can improve engineering quality and reduce building cost during assembly. However, because the frame beams and columns in the assembled building and the beam-upper throwing ribs in four directions on the column caps are required to be prefabricated at all nodes to be connected with the beam-upper throwing ribs on the opposite beams, the column caps are provided with holes to penetrate through the column caps to be connected with upper-layer column slurry anchors or sleeves, the procedures of transportation, hoisting, supporting, positioning and fixing, secondary mold closing and pouring and the like are quite complicated, time and labor are wasted, and the construction period and the cost are difficult to meet the requirements of all sides; in addition, sleeve grouting is difficult to realize accurate positioning and alignment when a wall body is connected with a floor slab, so that construction is difficult.
Besides the problems, the heat preservation and seepage resistance of the outer wall engineering are also considered in the construction process, and if the technical problems are not effectively improved, cracks are easy to occur between the assembled wall body and the structural column, the outer wall plate construction is difficult to popularize and use.
Therefore, according to the problems, the invention provides an external wall board assembly method capable of constructing with a main body structure, and the method has the characteristics that the prefabricated wall body is made of light materials, the strength of the inside and the outside can meet the requirements, the prefabricated wall body has a heat preservation and heat insulation function, the prefabricated wall body is prefabricated in a factory, the prefabricated wall body is used as a template of a beam column to construct with the main body structure synchronously, the field labor cost can be greatly reduced, the workload of brick laying and painting is reduced, and the construction period is shortened; meanwhile, a novel flexible connection assembly mode is adopted, so that the construction problem in the prior art is solved, and the construction advantage of the assembled building can be exerted.
Disclosure of Invention
(1) Technical problem to be solved
The invention aims to provide an external wall panel assembly type method for synchronous construction with a main body structure, which overcomes the defects that the external wall is constructed in a segmented mode in the prior art, the wet process is long in time consumption, and the problems of difficult installation and construction existing in the prior art when an assembly type building is used are overcome, so that the construction efficiency of the assembly type external wall panel is effectively improved.
(2) Technical proposal
In order to solve the technical problems, the invention discloses an external wall panel assembly method for synchronous construction with a main body structure, which comprises the following steps:
1. the factory processing and manufacturing stage:
1) Processing the prefabricated wall: arranging steel moulds, installing side moulds, and placing an outer-layer reinforcing steel bar net and an embedded part in the steel mould treatment and the side mould installation;
2) Pouring: pouring the prefabricated wall body with the embedded part processed in the step 1) with an outer-layer lightweight aggregate concrete layer, installing a middle extrusion molding plate layer, installing a limit reinforcing connecting piece on a corresponding hole site, placing an inner-layer reinforcing steel bar net and an embedded pipeline, and finally pouring the inner-layer lightweight aggregate concrete layer;
3) Curing: pre-curing the prefabricated wall, placing the prefabricated wall on a curing table for surface treatment, curing at normal temperature or steam curing, and demolding after curing to a certain strength;
4) And (3) transportation treatment: transferring the manufactured prefabricated wall to a stacking position of a construction site through a transport vehicle for standing maintenance;
2. and (3) in-situ installation construction stage:
1) Pretreatment on construction site: before the concrete of the building site floor is poured, embedding a positioning steel bar embedded part, positioning and lofting the floor, and installing a wall positioning clamp;
2) And (3) construction and installation treatment: binding column steel bars, hanging the prefabricated wall body to a designated installation position by using a site tower crane or an automobile crane, wherein the installation process comprises the following steps: (1) the prefabricated wall body is connected with the reinforced concrete top beam, (2) the prefabricated wall body is connected with the structural columns at two sides, (3) the bottom of the prefabricated wall body is connected with the reinforced concrete floor slab, and the concrete steps are as follows:
the prefabricated wall body is connected with the reinforced concrete top beam, and a sliding layer is arranged between the prefabricated wall body and the reinforced concrete top beam;
the prefabricated wall body is connected with the structural columns at the two sides, and flexible connecting pieces are arranged between the prefabricated wall body and the structural columns at the two sides;
the bottom of the prefabricated wall body is connected with a reinforced concrete floor slab, and a clamping piece is arranged at the bottom of the prefabricated wall body;
the prefabricated wall body is provided with temporary support connection, a temporary steel pipe support is arranged after the prefabricated wall body is installed in place, the perpendicularity of the prefabricated wall body is adjusted through the support, and the prefabricated wall body is fixed after adjustment;
3) And (3) post construction adjustment: and adjusting tie bars on the prefabricated wall body and the reinforced concrete beam, adjusting the tie bars between the prefabricated wall body and the structural column, adjusting the beam slab template of the mounting structure column, pouring the beam slab concrete of the structural column, and finally removing the support.
Preferably, the prefabricated wall body and the reinforced concrete top beam connection are specifically operated as follows: the wall top of the prefabricated wall body is used as a bottom die of the reinforced concrete beam, a non-penetrating slot hole is formed in the inner side of the bottom of the reinforced concrete beam, an extrusion molding plate layer is added into the slot hole to be used as a sliding layer of the wall top, the wall top of the prefabricated wall body is abutted against the bottom of the reinforced concrete beam, the prefabricated wall body and the reinforced concrete beam are integrated, and a tie bar between the prefabricated wall body and the reinforced concrete beam is additionally arranged. Through setting up the extruded sheet layer as the sliding layer, be convenient for effectively carry out fixed connection to the inboard non-penetrating slotted hole of reinforced concrete roof beam of settlement can prevent that moisture from getting into, prevent sunshine from shining, reaches certain leakproofness.
Preferably, the connection between the prefabricated wall body and the two side structural columns is specifically operated as follows: the position that is close to the structural column in prefabricated wall body's left and right sides all sets up flexible connection spare, and flexible connection spare is plastics material processing and forms, and the connecting piece is the cavity setting, and flexible connection spare is as prefabricated wall body processing's side forms, simultaneously as the flexible connection between prefabricated wall body and the structural column. Utilize the flexonics spare to replace mortar, improve the connectivity of structure post and prefabricated wall body to can effectually play limit portion sealed effect, through setting up the flexonics spare, the elasticity of connection between reinforcing prefabricated wall body and the structure post avoids the production and the expansion of crack between wall body and the post.
Preferably, the flexible connecting piece is provided with a clamping end and a flange end, the clamping end is arranged inside the prefabricated wall, the flange end is arranged at the junction position of the prefabricated wall and the structural column, and the edge of the flexible connecting piece is arranged in a zigzag manner. The portion that the clamp buckle end that sets up can effectually interlock prefabricated wall body, the flange end that sets up can prevent to connect limit portion fracture after pouring the completion, also can prevent the fracture expansion when producing the fracture.
Preferably, the connection between the bottom of the prefabricated wall body and the reinforced concrete floor slab is specifically operated as follows: when the prefabricated wall bottom is in the factory processing stage, a groove with a fixed size is formed in the middle of the prefabricated wall, after the construction of the reinforced concrete floor is completed, the position and the elevation of the prefabricated wall are clamped and fixed by the clamping pieces according to the floor positioning, the accuracy of the two axial directions and the elevation of the wall is guaranteed, and meanwhile through holes are formed in the clamping pieces and serve as channels for grouting after the wall bottom. Through setting up the fastener, can effectively realize the accuracy of prefabricated wall body two axiss, convenient grout in-process thick liquids are even.
Preferably, the clamping piece is T-shaped, and grouting is performed through a narrow opening of the T-shaped, and slurry flows into the prefabricated wall body through the through hole, so that cement mortar seat slurry reinforcement is formed between the prefabricated wall body and the reinforced concrete floor slab. The clamping piece is T-shaped, so that the positioning of the prefabricated wall body, the accuracy of elevation and the accuracy degree of two axial directions are guaranteed, and an effective fixed-point positioning effect is achieved. So that the fixation is accurate.
Preferably, in the step of processing the prefabricated wall body, the door and window auxiliary frame can be optionally cast together with the prefabricated wall body. Through attaching door and window in the in-process of prefabricated wall body processing and attaching the frame, can reduce later stage constructor and measure again, punch, location, installation, the loaded down with trivial details operation of cock seam, practiced thrift man-hour and improved efficiency.
Preferably, the gap between the bottom of the prefabricated wall body and the reinforced concrete floor slab is compacted by adopting shrinkage-free grouting material.
Preferably, the lightweight aggregate concrete layers of the inner layer and the outer layer of the prefabricated wall body are made of ceramsite concrete materials, and the lightweight aggregate concrete layers of the inner layer and the outer layer are respectively provided with a reinforcing mesh. The prefabricated wall body has the heat preservation and heat insulation functions.
(3) Advantageous effects
Compared with the prior art, the invention overcomes the defects that the external wall body needs monolithic masonry construction, the structural columns are not flexibly connected, the process requirement of the top brick at the joint of the structural columns and the beam bottom is high, the internal and external wall painting is a wet process, the whole external wall construction consumes a long time, and the mounting difficulty and the construction problem of an assembled building in the prior art are overcome. The invention adopts the part of the factory prefabricated wall body, so that the site and the main structure template can be synchronously constructed, the use amount of the site mould and the cost of labor force can be greatly reduced, the time of manual waiting is reduced, the working procedures of building and painting the outer wall are reduced, the construction period is shortened, and the defects in the traditional process are overcome;
according to the invention, the sliding layer is arranged in the connection of the prefabricated wall body and the reinforced concrete top beam, and the non-penetrating slotted hole is used for inserting the sliding layer, so that the flexible connection is enhanced, the sun-proof and waterproof effects are improved, and the tightness after connection and installation is enhanced; the flexible connecting pieces are arranged in the connection of the prefabricated wall body and the structural columns at two sides, so that the prefabricated wall body has certain elasticity, the arranged flange end can effectively play a role in sealing water resistance, the flange end can effectively prevent the connected flange from cracking, the position close to the flexible connecting pieces can also prevent the cracking from expanding, and the situation of being corroded by water is effectively prevented; the edge of the flexible connecting piece is in a zigzag shape, so that the contact area between the flexible connecting piece and the prefabricated wallboard and the contact area between the flexible connecting piece and the structural column are increased, the connection is enhanced, and the anti-slip effect is effectively achieved; the clamping piece is set to be the T-shaped square steel with the through holes in the connection of the bottom of the prefabricated wall body and the reinforced concrete floor slab, so that the positioning accuracy in the transverse and longitudinal axial directions can be realized during positioning, the fixing process is more accurate, grouting materials flow to the connection part through the through holes, the grouting materials can be uniformly distributed, the compactness after grouting is enhanced, and the connectivity between the reinforced concrete floor slab and the wall body is reinforced; the structure connected with the prefabricated wall body is provided with the tie bars, so that the anti-seismic function of the external wall panel is enhanced.
Drawings
The invention is further described below with reference to the drawings and examples. Wherein:
FIG. 1 is an enlarged schematic view of a reinforced concrete beam and prefabricated wall body installation site;
FIG. 2 is an enlarged schematic view of the structure of the prefabricated wall and structural column installation locations;
FIG. 3 is an enlarged schematic view of the flexible connector of FIG. 2;
FIG. 4 is a schematic view of the structure of the installation of the fastener in the prefabricated wall;
FIG. 5 is a three-dimensional block diagram of the fastener of FIG. 4;
FIG. 6 is a cross-sectional view taken along the direction A-A in FIG. 4;
FIG. 7 is a cross-sectional view in the direction B-B in FIG. 4;
fig. 8 is an enlarged view of the structure of the prefabricated wall body inside which the door and window auxiliary frame is installed.
The reference numerals are: the reinforced concrete floor comprises the following components of a 1-reinforced concrete top beam, a 2-prefabricated wall body, a 21-lightweight aggregate concrete layer, a 22-extruded sheet layer, 3-tie bars, 4-flexible connectors, 41-clip ends, 42-flange ends, 5-structural columns, 6-clamping pieces, 7-cement mortar seat slurry, 8-door and window auxiliary frames and 9-reinforced concrete floors.
Detailed Description
The following detailed description of the invention will be provided in terms of various treatment processes, examples of which will be set forth to provide those skilled in the art with a better understanding of the invention, but are not intended to limit the invention in any way, as the invention may be extended to other similar assembly constructions.
Example 1:
an external wall panel assembly method for synchronous construction with a main body structure comprises the following steps:
1. the factory processing and manufacturing stage:
1) Processing the prefabricated wall: setting the thickness of the prefabricated wallboard to be 200mm in the processing process, then carrying out steel mould arrangement and side mould installation, and placing an outer-layer reinforcing steel bar net and an embedded part in the steel mould treatment and side mould installation;
2) Pouring: pouring the prefabricated wall body with the embedded part processed in the step 1) with an outer-layer lightweight aggregate concrete layer, installing a middle extrusion molding plate layer, installing a limit reinforced plastic connecting piece on a corresponding hole site, placing an inner-layer reinforcing steel bar net and an embedded pipeline, pouring the inner-layer lightweight aggregate concrete layer, setting the thicknesses of the inner-layer lightweight aggregate concrete layer and the outer-layer lightweight aggregate concrete layer to be 75mm, and setting the thickness of the extrusion molding plate layer at the middle part to be 50mm;
3) Curing: pre-curing the prefabricated wall, placing the prefabricated wall on a curing table for surface treatment, curing at normal temperature or steam curing, and demolding after curing to a certain strength;
4) And (3) transportation treatment: transferring the manufactured prefabricated wall to a stacking position of a construction site through a transport vehicle for standing maintenance;
2. and (3) in-situ installation construction stage:
1) Pretreatment on construction site: before the concrete of the building site floor is poured, embedding a positioning steel bar embedded part, positioning and lofting the floor, and installing a wall positioning clamp;
2) And (3) construction and installation treatment: binding column steel bars, hanging the prefabricated wall body to a designated installation position by using a site tower crane or an automobile crane, wherein the installation process comprises the following steps: (1) the prefabricated wall body is connected with the reinforced concrete top beam, (2) the prefabricated wall body is connected with the structural columns at two sides, (3) the bottom of the prefabricated wall body is connected with the reinforced concrete floor slab, and the concrete steps are as follows:
the prefabricated wall body is connected with a reinforced concrete top beam, wherein a sliding layer is arranged between the prefabricated wall board and the reinforced concrete top beam, and the thickness of the sliding layer is set to be 20mm; the prefabricated wall body and the reinforced concrete top beam are connected specifically as follows: the wall top of the prefabricated wall body is used as a bottom die of the reinforced concrete beam, a non-penetrating slot hole is formed in the inner side of the bottom of the reinforced concrete beam, the outer distance between the non-penetrating slot hole and the reinforced concrete beam is 20mm, an extruded sheet layer is added into the slot hole and used as a sliding layer of the wall top, namely the thickness of the extruded sheet layer is 20mm, so that the length of the longitudinal section of the dug slot hole is 170mm, the width of the dug slot hole is 20mm, the extruded sheet layer can be just placed, the wall top of the prefabricated wall body is propped against the bottom of the reinforced concrete beam, the prefabricated wall body and the reinforced concrete beam are integrated, and tie bars between the prefabricated wall body and the reinforced concrete beam are additionally arranged.
The prefabricated wall body is connected with the structural columns at the two sides, flexible connecting pieces are arranged between the prefabricated wall body and the structural columns at the two sides, and the length of each flexible connecting piece is 200mm, and the width of each flexible connecting piece is 50mm; the connection specific operation of the prefabricated wall body and the two side structure columns is as follows: the method comprises the steps that flexible connecting pieces are arranged at the positions, close to structural columns, of the left side and the right side of a prefabricated wall body, the flexible connecting pieces are made of plastic materials in a machining mode, the connecting pieces are hollow, the flexible connecting pieces serve as side dies for machining the prefabricated wall body, and meanwhile serve as flexible connection between the prefabricated wall body and the structural columns;
installing a flexible connecting piece between the prefabricated wallboard and the structural column, pre-burying the flexible connecting piece in the prefabricated wallboard, then pouring the structural column, and arranging a drawknot rib between the two to connect, thereby increasing the shock resistance;
in order to strengthen the relation of connection between flexible connection spare and the prefabricated wallboard, flexible connection spare is equipped with and presss from both sides knot end and flange end, presss from both sides knot end for the interlock of knot inside prefabricated wall body, presss from both sides the size of knot end and is long 25mm, crotch 12mm sets up, and the flange end sets up in prefabricated wall body and the position of structure post juncture, and the length of flange portion is 25mm, is half in the inboard of structure post respectively, is half in prefabricated wall body inboard.
The bottom of the prefabricated wall body is connected with the reinforced concrete floor slab, the clamping piece is arranged at the bottom of the prefabricated wall body, a plastic steel groove with a fixed size is arranged in the middle of the bottom of the prefabricated wall body in the factory processing and manufacturing stage, a strip hole with the size of 600mm multiplied by 40mm and a diversion hole with the size of 75mm multiplied by 40mm are formed into a T shape, the T-shaped clamping piece is convenient to install, the T-shaped clamping piece is 500mm long and is just aligned with a groove with the length of 600mm, a through groove for grouting liquid circulation is formed in the clamping piece, the through groove is arranged at the position of 40mm multiplied by 40mm, the grouting liquid is injected through a narrow opening of the T shape, namely a port with the size of 40mm multiplied by 40mm, and the grouting liquid flows into the prefabricated wall body through a through hole, so that cement mortar seat slurry is formed between the prefabricated wall body and the reinforced concrete floor slab for reinforcement; according to floor positioning, clamping and fixing the position and elevation of the prefabricated wall body by adopting a clamping piece, ensuring the accuracy of two axial directions of the cavity, and simultaneously arranging a through hole on the clamping piece as a channel for grouting after the wall bottom;
then, the prefabricated wall body is provided with temporary support connection in the concrete pouring process, a temporary steel pipe support is arranged after the prefabricated wall body is installed in place, the perpendicularity of the prefabricated wall body is adjusted through the support, and the prefabricated wall body is fixed after adjustment;
in the prefabricated wall body processing process, door and window auxiliary frames can be synchronously poured for convenience, and the problems of seam plugging effect, firmness and compactness of the on-site door and window auxiliary frame connecting positions are solved.
3) And (3) post construction adjustment: and adjusting tie bars on the prefabricated wall body and the reinforced concrete beam, adjusting the tie bars between the prefabricated wall body and the structural column, adjusting the beam slab template of the mounting structure column, pouring the beam slab concrete of the structural column, and finally removing the support.
In the construction and installation process, the gap between the bottom of the prefabricated wall body and the reinforced concrete floor slab is closely knit by adopting shrinkage-free grouting materials; in addition, the lightweight aggregate concrete layer is processed by adopting a ceramsite concrete material, and the extruded sheet layer is processed by adopting an extruded sheet or polyurethane hard foam plastic.
The foregoing description is only of the preferred embodiments of the invention, and all changes and modifications that come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Claims (5)
1. An external wall panel assembly method for synchronous construction with a main body structure is characterized in that: the method comprises the following steps:
1. the factory processing and manufacturing stage:
1) Processing the prefabricated wall: arranging steel moulds, installing side moulds, and placing an outer-layer reinforcing steel bar net and an embedded part in the steel mould treatment and the side mould installation;
2) Pouring: pouring the prefabricated wall body with the embedded part processed in the step 1) with an outer-layer lightweight aggregate concrete layer, installing a middle extrusion molding plate layer, installing a limit reinforcing connecting piece on a corresponding hole site, placing an inner-layer reinforcing steel bar net and an embedded pipeline, and finally pouring the inner-layer lightweight aggregate concrete layer;
3) Curing: pre-curing the prefabricated wall, placing the prefabricated wall on a curing table for surface treatment, curing at normal temperature or steam curing, and demolding after curing to a certain strength;
4) And (3) transportation treatment: transferring the manufactured prefabricated wall to a stacking position of a construction site through a transport vehicle for standing maintenance;
2. and (3) in-situ installation construction stage:
1) Pretreatment on construction site: before the concrete of the building site floor is poured, embedding a positioning steel bar embedded part, positioning and lofting the floor, and installing a wall positioning clamp;
2) And (3) construction and installation treatment: binding column steel bars, hanging the prefabricated wall body to a designated installation position by using a site tower crane or an automobile crane, wherein the installation process comprises the following steps: (1) the prefabricated wall body is connected with the reinforced concrete top beam, (2) the prefabricated wall body is connected with the structural columns at two sides, (3) the bottom of the prefabricated wall body is connected with the reinforced concrete floor slab, and the concrete steps are as follows:
the prefabricated wall body is connected with the reinforced concrete top beam, and a sliding layer is arranged between the prefabricated wall body and the reinforced concrete top beam;
the prefabricated wall body is connected with the structural columns at the two sides, and flexible connecting pieces are arranged between the prefabricated wall body and the structural columns at the two sides;
the bottom of the prefabricated wall body is connected with a reinforced concrete floor slab, and a clamping piece is arranged at the bottom of the prefabricated wall body;
the prefabricated wall body is provided with temporary support connection in the concrete pouring process, temporary steel pipe supports are arranged after the prefabricated wall body is installed in place, the perpendicularity of the prefabricated wall body is adjusted through the supports, and the prefabricated wall body is fixed after adjustment;
3) And (3) post construction adjustment: and adjusting tie bars on the prefabricated wall body and the reinforced concrete beam, adjusting the tie bars between the prefabricated wall body and the structural column, adjusting the beam slab template of the mounting structure column, pouring the beam slab concrete of the structural column, and finally removing the support.
The prefabricated wall body and the reinforced concrete top beam are connected specifically as follows: taking the top of the prefabricated wall body as a bottom die of the reinforced concrete beam, arranging a non-penetrating slot hole on the inner side of the bottom of the reinforced concrete beam, adding an extrusion molding plate layer into the slot hole as a sliding layer of the top of the wall body, propping the top of the prefabricated wall body against the bottom of the reinforced concrete beam, integrating the prefabricated wall body with the reinforced concrete beam, and adding a tie bar between the prefabricated wall body and the reinforced concrete beam;
the connection specific operation of the prefabricated wall body and the two side structure columns is as follows: the method comprises the steps that flexible connecting pieces are arranged at the positions, close to structural columns, of the left side and the right side of a prefabricated wall body, the flexible connecting pieces are made of plastic materials in a machining mode, the connecting pieces are hollow, the flexible connecting pieces serve as side dies for machining the prefabricated wall body, and meanwhile serve as flexible connection between the prefabricated wall body and the structural columns;
the flexible connecting piece is provided with a clamping end and a flange end, the clamping end is arranged inside the prefabricated wall, the flange end is arranged at the junction of the prefabricated wall and the structural column, and the edge of the flexible connecting piece is arranged in a zigzag manner;
the bottom of the prefabricated wall body is specifically operated with the reinforced concrete floor slab connection: when the prefabricated wall bottom is in the factory processing stage, a groove with a fixed size is formed in the middle of the prefabricated wall, after the construction of the reinforced concrete floor is completed, the position and the elevation of the prefabricated wall are clamped and fixed by the clamping pieces according to the floor positioning, the accuracy of the two axial directions and the elevation of the prefabricated wall is guaranteed, and meanwhile through holes are formed in the clamping pieces and serve as channels for grouting after the wall bottom.
2. The method for assembling an external wall panel synchronously constructed with a main structure according to claim 1, wherein: the clamping piece is of a T shape, and is injected through a narrow opening of the T shape during grouting, and grout flows into the prefabricated wall body through the through hole, so that cement mortar seat grout is formed between the prefabricated wall body and the reinforced concrete floor slab for reinforcement.
3. The method for assembling the external wall panel synchronously constructed with the main structure according to claim 2, wherein the method comprises the following steps: in the step of processing the prefabricated wall body, the door and window auxiliary frame can be optionally poured with the prefabricated wall body at the same time.
4. A method of assembling an exterior wall panel for synchronous construction with a main structure according to claim 3, wherein: and the gap between the bottom of the prefabricated wall body and the reinforced concrete floor slab is filled with shrinkage-free grouting material for compaction.
5. The method for assembling an external wall panel synchronously constructed with a main structure according to claim 4, wherein: the lightweight aggregate concrete layers of the inner layer and the outer layer of the prefabricated wall body are made of ceramsite concrete materials, and the lightweight aggregate concrete layers of the inner layer and the outer layer are respectively provided with a reinforcing mesh.
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