CN108385876B

CN108385876B - Integral-casting and quick-building process for prefabricated assembly type shear wall

Info

Publication number: CN108385876B
Application number: CN201810146735.3A
Authority: CN
Inventors: 刘振华
Original assignee: Individual
Current assignee: Liu Yijie
Priority date: 2018-02-12
Filing date: 2018-02-12
Publication date: 2020-01-03
Anticipated expiration: 2038-02-12
Also published as: CN108385876A

Abstract

The invention discloses a prefabricated assembly type shear wall integral-casting and quick-building process, which is characterized in that a reinforcing steel frame and a reinforced concrete wallboard are prefabricated, the wallboard and the reinforcing steel frame are hoisted on a construction site, then a lateral opening of the wallboard is sealed, and the construction of a shear wall can be completed by pouring concrete, wherein the wallboard is prefabricated into a reinforced concrete structure in a factory and can be used as a bearing member of the shear wall and a template of the shear wall, and the template does not need to be removed after the concrete is poured, so that the construction cost and the material cost are greatly reduced, and the construction efficiency of the shear wall is improved. The prefabricated reinforcing steel bar frame is arranged between the two wallboards to reinforce the shear wall, so that the processes of site construction are further reduced, the site construction operation is simpler, and the construction efficiency is higher. And moreover, concrete is poured in situ in the interlayer between the two wallboards, so that the node integrity of the shear wall and the part to be connected at the bottom is ensured, and the node connection is more stable, reliable and safe.

Description

Integral-casting and quick-building process for prefabricated assembly type shear wall

Technical Field

The invention belongs to the field of buildings, and particularly relates to a whole-casting and quick-building process of a prefabricated assembly type shear wall.

Background

At present, the construction of China is mainly based on site full-cast-in-place, and the problems of low construction efficiency, high resource consumption, high construction noise, high environmental pollution, low occupational literacy of construction teams, poor construction precision, high customer complaint rate and the like exist, so that the method has a great gap with the construction technology of the developed national building.

The prefabricated building in China just starts and is quickly promoted, a plurality of technical problems are in an exploration stage, some problems theoretically solved cannot be solved in actual construction, and a plurality of hidden dangers influencing the structural safety exist. Especially, in the existing assembly type shear wall construction, the mode of prefabricating the whole shear wall body in a factory and assembling and constructing on site is adopted, the node connection integrity is poor, the steel bar connection operation is troublesome, the steel bar connection reliability is low, the bearing capacity is unreliable, and a plurality of potential safety hazards exist.

Disclosure of Invention

The invention aims to solve the technical problem of providing a prefabricated assembly type shear wall integral casting and quick building process which is strong in node integrity and simple in construction operation.

The technical scheme of the invention is as follows: a whole-pouring and quick-building process for a prefabricated assembly type shear wall comprises the following steps:

prefabricating a wallboard and a reinforcing steel bar frame, namely prefabricating the reinforced concrete wallboard in a factory and prefabricating the reinforcing steel bar frame;

hoisting the wall boards and the reinforcing steel frames, namely hoisting two oppositely arranged wall boards at the position of the shear wall to be constructed and hoisting the reinforcing steel frame between the two wall boards;

fixing a sealing plate, namely fixing the sealing plate between the two wallboards, wherein the sealing plate seals a lateral opening between the two wallboards;

step four, pouring concrete, namely pouring concrete between the two wallboards;

and fifthly, disassembling the sealing plate and finishing construction.

The construction of the shear wall can be finished by prefabricating the reinforcing steel frames and the reinforced concrete wall boards, hoisting the wall boards and the reinforcing steel frames on a construction site, then closing the lateral openings of the wall boards, and pouring concrete, wherein the wall boards are prefabricated into reinforced concrete structures in factories, can be used as bearing members of the shear wall and templates of the shear wall, and do not need to be dismantled after the concrete is poured, so that the construction cost and the material cost are greatly reduced, and the construction efficiency of the shear wall is improved. The prefabricated reinforcing steel bar frame is arranged between the two wallboards to reinforce the shear wall, so that the processes of site construction are further reduced, the site construction operation is simpler, and the construction efficiency is higher. And moreover, concrete is poured in situ in the interlayer between the two wallboards, so that the node integrity of the shear wall and the part to be connected at the bottom is ensured, and the node connection is more stable, reliable and safe.

And in the second step, before the wallboard is hoisted, structural adhesive or concrete reinforcing slurry with the thickness of at least 3mm is coated at the position where the wallboard is to be installed. Therefore, structural adhesive or concrete reinforcing slurry is coated, and the joint between the lower end of the wallboard and the part to be connected is ensured to transmit force reliably.

In the second step, the two wallboards are fixedly connected and then integrally hoisted. The wallboard thickness control is more convenient, and the efficiency of construction is higher.

In the first step, connectors for connecting reinforcing steel bars are pre-embedded in the prefabricated wall panels. When the pre-buried connecting piece is used for fixing two wallboards subsequently, the steel bars can be conveniently and quickly inserted, and the field construction efficiency can be improved.

In the second step, after the wall panels are hoisted in place, the inclined stay bar is arranged outside at least one of the wall panels. Carry out the bracing to the wallboard and strengthen, be favorable to guaranteeing the stability of wallboard.

In the first step, an insulating layer and/or a decorative layer are fixed outside the wall board prefabricated in a factory. The heat-insulating layer and/or the decorative layer are directly fixed on the wall board in a factory, so that the wall board can be directly used as the outer wall surface of a building, the construction of the heat-insulating layer and/or the decorative layer on the site is avoided, the on-site construction efficiency is favorably improved, and the construction period is shortened.

And fourthly, before concrete is poured, a wire pipe is embedded in an interlayer between the two wallboards, an inspection box communicated with the wire pipe is installed in a hole at the lower end of each wallboard, and a junction box communicated with the wire pipe is installed in a hole at the middle of each wallboard. Therefore, the line pipe, the inspection box and the junction box are embedded in the wallboard in advance, so that the line pipe, the inspection box and the junction box are prevented from being installed in a groove on site, and the construction efficiency and the decoration efficiency are improved conveniently.

And embedding a to-be-connected steel bar extending upwards in the to-be-installed part of the shear wall, inserting a vertical steel bar into the steel bar frame in the step two, connecting the lower end of the vertical steel bar with the to-be-connected steel bar, and extending the upper end of the vertical steel bar out of the upper end of the wallboard. Arrange vertical reinforcing bar like this in the reinforcing bar frame to with vertical reinforcing bar and pre-buried treating connecting reinforcement to be connected, stretch out the wallboard with vertical reinforcing bar upper end, be favorable to improving the whole atress effect of shear force wall, and be favorable to further strengthening the biography power effect of node wholeness and node.

In the second step, each wallboard comprises at least two prefabricated wallboards which are spliced side by side, and in the second step, a reinforcing steel bar frame is arranged in an interlayer at the splicing position of the wallboards. Set up the concatenation of polylith wallboard like this and be whole face wallboard, be favorable to the disposable construction of pouring of broad and longer shear force wall, the reinforcing bar frame that concatenation department arranged is favorable to carrying out the structure to the concatenation and strengthens.

Has the advantages that: the invention can finish the construction of the shear wall by prefabricating the reinforcing steel frames and the reinforced concrete wall boards, hoisting the wall boards and the reinforcing steel frames on a construction site, then closing the lateral openings of the wall boards and pouring concrete, thereby providing the integral casting and quick construction process of the prefabricated assembly type shear wall with strong node integrity and simple construction operation.

Drawings

In order to more clearly illustrate the detailed description of the invention or the technical solutions in the prior art, the drawings that are needed in the detailed description of the invention or the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.

FIG. 1 is a schematic view of the first embodiment of the present invention.

Fig. 2 is a construction state diagram of the shear wall on site.

Fig. 3 is a schematic structural view of a reinforcing mesh in the wall panel.

Fig. 4 is a schematic structural view of a connector for inserting reinforcing bars.

Fig. 5 is a right side view of the first sleeve of fig. 4.

Fig. 6 is a schematic view of one of the fixing structures of the two wall panels.

Fig. 7 is a schematic view of another fixing structure of two wall panels.

Fig. 8 is a schematic view of the installation of the diagonal stay.

Fig. 9 is a schematic view of the installation structure of the line tube, the junction box and the inspection box.

Fig. 10 is a schematic view of one of the connection structures of the shear wall bottom.

Fig. 11 is a schematic view of a connection structure of the vertical reinforcing bars in fig. 10.

Fig. 12 is a top view of the second sleeve of fig. 11.

Fig. 13 is a schematic view of another connection structure of the shear wall bottom.

Fig. 14 is a structural schematic diagram of a small-hole shear wall.

Fig. 15 is a schematic structural view of the coupling beam.

Fig. 16 is a construction diagram of the coupling beam and the shear wall.

FIG. 17 is a construction schematic view of a shear wall with a large hole.

Fig. 18 is a schematic view of an installation structure of the heating ventilation pipe.

Fig. 19 is a left side view of fig. 18.

Fig. 20 is a schematic view of the split and combined structure of the wall panel of one of the special-shaped wall limbs.

Fig. 21 is a schematic view of the split and combined structure of the wall panel of another special-shaped wall limb.

Fig. 22 is a schematic view of the split and combined structure of the wall panel of another special-shaped wall limb.

Fig. 23 is a schematic view of the split and combined structure of the wall panel of another special-shaped wall limb.

Reference numerals: the steel bar net 1, the bent steel bar 2, the insertion pipe 3, the connecting piece 4, the first sleeve 411, the lantern ring 412, the locking piece 413, the first spring ring 414, the wall plate 5, the heat preservation layer 6, the decoration layer 7, the diagonal brace 8, the line pipe 9, the junction box 10, the inspection box 11, the second sleeve 12, the clamping piece 13, the second spring ring 14, the pin 15, the reinforcing steel bar 16, the reserved opening 17, the connecting beam 18, the steel bar frame 19, the closing plate 20, the heating and water passing pipe 21, the tie steel bar 22, the steel pipe with the bend 23, the vertical steel bar 24 and the rectangular steel bar frame 25.

Detailed Description

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.

In the description of the present application, it is to be understood that the terms "upper", "lower", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", and the like, are used in the positional or orientational relationships indicated in fig. 1 of the specification, which are based on the positional or orientational relationships illustrated in the drawings, are used for convenience of description and simplicity of description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

The first embodiment is as follows:

as shown in fig. 1 and 2, the present embodiment includes the following steps:

prefabricating a wall plate 5 and a reinforcing steel frame 19, prefabricating the reinforced concrete wall plate 5 in a factory, and prefabricating the reinforcing steel frame 19;

and step two, hoisting the wall boards 5 and the reinforcing steel frames 19, hoisting two oppositely arranged wall boards 5 at the position of the shear wall to be constructed, and hoisting the reinforcing steel frames 19 between the two wall boards 5. The hoisting sequence of the wall board 5 and the reinforcing steel frames 19 is not limited, and two oppositely arranged wall boards 5 can be hoisted firstly, the wall boards 5 are fixed, and then the reinforcing steel frames 19 are hoisted between the two wall boards 5; it is also possible to hoist the reinforcing frames 19 first and then hoist the wall panels 5.

Step four, fixing a sealing plate 20, namely fixing the sealing plate 20 between the two wall plates 5, and sealing a lateral opening between the two wall plates 5 by the sealing plate 20;

step five, pouring concrete, namely pouring concrete between the two wallboards 5;

and step six, disassembling the sealing plate 20, and finishing construction.

As shown in fig. 2 and 3, in the first step, a grid-shaped reinforcing mesh 1 is arranged in the wall plate 5. In order to facilitate the hoisting of the wall boards 5, the upper end of the reinforcing mesh 1 of each wall board 5 is also welded and fixed with a bent reinforcing bar 2 with an upward arched middle part, and the lower side of the arched part of the bent reinforcing bar 2 is welded and fixed with an insertion pipe 3. In the second step, the two wall boards 5 are fixedly connected and then integrally hoisted. During hoisting, the short steel bars only need to be penetrated in the insertion pipes 3 of the two wallboards 5, and the lifting hooks can be hung on the short steel bars for hoisting.

As shown in fig. 2, 3, 4, 5 and 6, in order to facilitate the fixed connection of two wall panels 5, connectors 4 for connecting reinforcing bars are embedded uniformly in the prefabricated wall panels 5. The structure of the connecting piece 4 is not limited, and the connecting piece can be used for connecting steel bars. In the embodiment, the connecting piece 4 on one wall plate 5 to be fixed is preferably in a tubular shape with a step surface, so that the connecting steel bar can pass through the connecting piece; the connecting element 4 of the other wall panel 5 to be fixed is shown in fig. 4 and 5, and comprises a first sleeve 411 formed by splicing at least two sleeve blocks which are uniformly distributed in the circumferential direction, and a sleeve 412 is sleeved outside the first sleeve 411. Open in the first sleeve 411 and to have first mounting hole, it has two at least first mounting grooves to open at first mounting hole inner wall, all be fixed with the locking plate group in each first mounting groove, locking plate group is including the locking plate 413 of three circumference equipartition at least, hoop cover has first spring coil 414 outside the locking plate group, the outer loop of locking plate group and first spring coil 414 all block in the first mounting groove that corresponds, the inner ring of locking plate group stretches out corresponding first mounting groove, the interior rampart of every locking plate group is the circular conical surface of big end inside out. When carrying out fixed connection to two blocks of wallboard 5, only need process spacing ring platform, other end processing and the annular of locking plate group one-to-one at the one end of connecting reinforcement, will connect the reinforcement end and pass two wallboard 5 in proper order, insert in the first mounting hole that corresponds first sleeve 411 until the reinforcement end to each locking plate group card go into the annular that connects the reinforcement end and correspond can.

As shown in fig. 7, another fixing structure of two wall boards 5 is shown, when the wall boards 5 are prepared, the steel pipes with elbows 23 are welded on the steel bar mesh 1, and fillers such as benzene plates or soft plastics are filled in the steel pipes with elbows 23, when the two wall boards 5 need to be fixedly connected after the wall boards 5 are formed, the fillers in the steel pipes with elbows 23 are removed, the tie bars 22 are inserted into the corresponding steel pipes with elbows 23, and the steel pipes with elbows 23 and the tie bars 22 are welded. Therefore, the requirement on the installation accuracy is not high, and the installation speed is high. The method can be used for assembling the prefabricated shear wall plate in a factory and a construction site, and is simple, convenient and quick, and strong in adjustability; the method can also be used for assembling the prefabricated shear wall panel with a complex shape on a construction site, modifying the assembled prefabricated shear wall panel, modifying and changing engineering design and the like.

In order to enhance the transfer of forces between wall panel 5 and the location to be joined, a structural glue or concrete reinforcing slurry of at least 3mm thickness is applied to the location where wall panel 5 is to be installed, prior to lifting wall panel 5. The structural adhesive and the concrete reinforcing grouting material are both existing materials, and only appropriate materials are selected according to concrete reinforcing specifications, which is not described herein any more.

As shown in fig. 2 and 6, if used as an exterior wall, an insulation layer 6 and/or a decorative layer 7 are fixed to the exterior of the wall panel 5 prefabricated in a factory. Such wall panels 5 can be used directly as building facades without the need for the construction of insulation 6 and/or decorative layers 7 on site.

As shown in fig. 2 and 8, in step two, after the wall panels 5 are hoisted into place, a diagonal brace 8 is arranged outside at least one of the wall panels 5. The present embodiment preferably provides diagonal braces 8 outside the wall panels 5 as the inner wall surface.

As shown in fig. 9, before concrete is poured in step four, a conduit 9 is embedded in the interlayer between the two wall panels 5, an inspection box 11 communicated with the conduit 9 is installed in a hole at the lower end of each wall panel 5, and a junction box 10 communicated with the conduit 9 is installed in a hole at the middle part of each wall panel 5. The conduit 9 and the junction box 10 can be pre-buried or installed in a hole in a factory, or installed in a hole in a construction site according to actual conditions. As shown in fig. 18 and 19, a heating ventilation pipe 21 may be installed between the two wall panels 5 before the concrete is poured, so as to facilitate heating or cooling.

As shown in fig. 10, in order to improve the force transmission effect between the shear wall and the upper and lower portions, the portion of the shear wall to be installed is pre-embedded with the steel bars to be connected, which extend upwards, in the second step, the vertical steel bars 24 are inserted into the steel bar frames 19, and the lower ends of the vertical steel bars 24 are connected with the steel bars to be connected; the upper end of the vertical reinforcing steel bar 24 extends out of the upper end of the wallboard 5 and is used as an embedded reinforcing steel bar for connecting the upper layer of shear wall. In actual construction, after the vertical steel bars 24 are connected with the steel bars to be connected, the steel bar frame 19 is hoisted.

The connection structure between the vertical reinforcing bars is not limited, and various modes can be provided. As shown in fig. 11 and 12, the present embodiment preferably adopts the following manner: the lower end of the second sleeve 12 is in threaded fit with the end of the embedded steel bar. Open the second mounting hole in the upper end of second sleeve 12, open at least one second mounting groove at the inner wall of second mounting hole, equal clamping piece group in each second mounting groove, clamping piece group is including the clamping piece 13 of at least three circumference equipartition, clamping groove and vertical jack are opened to the one end that each clamping piece 13 stretches out the second mounting groove, same second spring ring 14 of card dress in all clamping piece 13 draw-in grooves of each clamping piece group, equal cartridge pin 15 in the jack of each clamping piece 13, all pin 15 are cramped inwards to second spring ring 14. The vertical reinforcing bar lower extreme of treating to connect at the top is equipped with the snap ring with clamping piece group one-to-one, the vertical reinforcing bar lower extreme of treating to connect inserts in the second mounting hole, and clamping piece group card is in the top that corresponds the snap ring, before the vertical reinforcing bar of pegging graft, it has structure glue or concrete reinforcement grout material to fill in the second mounting hole, the reinforcing bar plug bush section of thick bamboo that can realize many reinforcing bars while quick connect is connected, even the reinforcing bar of treating to connect is eccentric with the reinforcing bar below, also can be in order to make things convenient for swiftly to connect.

Fig. 13 shows another connection structure of the shear wall bottom, that is, an upward extending rectangular reinforcing steel bar frame 25 is embedded in a to-be-installed portion of the shear wall, and the upper end of the rectangular reinforcing steel bar frame 25 extends into a space between two wall plates 5 of the shear wall.

In practical operation, for construction of wider or longer shear walls, in step two, each wall panel 5 may be a prefabricated wall panel 5 including at least two wall panels 5 spliced side by side left and right or top and bottom, and in step two, a reinforcing steel frame 19 is disposed in the interlayer at the splicing position of the wall panels 5. At the position of prefabricated wallboard 5 piece, reserve the recess of 40mm wide, 8mm deep on seam both sides, after wallboard 5 installation was accomplished, iron wire netting and two-layer glass fiber net are pasted in proper order in the recess, and the wall body fracture can be effectively prevented to the compaction of polymer mortar trowelling.

As shown in fig. 14, for the construction of the shear wall with the small hole, the small hole is reserved on the prefabricated wall panel 5, the reserved hole 17 with the diameter of phi 80-100 is reserved when the wall panel 5 at the lower part of the hole is sealed, and is used as a concrete observation hole or a concrete pouring port, and when concrete at two sides of the hole cannot flow into the cavity below the hole, concrete needs to be poured from the reserved hole 17. And, reinforcing bars 16 are attached to the reinforcing mesh 1 of the prefabricated wall panel 5 around the small hole and/or reinforcing bars 16 are installed between two wall panels 5 around the small hole.

By adopting the construction process of the shear wall in the embodiment, the shear wall and the connecting beam 18 can be constructed together, namely the connecting beam 18 is constructed above two parallel shear walls simultaneously. As shown in fig. 15, the coupling beam 18 is a factory-prefabricated coupling beam 18; if the wall is an outer wall, the heat insulation layer, the outer protection layer and the like can be directly prefabricated with the connecting beam 18 in a factory; the connecting beam 18 has extending reinforcing bars at both ends. The shear wall panels 5 are installed in place on a construction site, and after the reinforcing steel frames 19 are installed, the prefabricated connecting beams 18 are directly hoisted and installed in place. The side port closing plates 20 of the shear wall are directly used as supporting points at two ends of the connecting beam 18, reinforcing steel bars at two ends of the connecting beam 18 extend between two wall plates of the shear wall, and a cast-in-place reinforced concrete shear wall connecting beam 18 structure shown in fig. 16 can be formed after concrete is poured.

As shown in fig. 17, for the construction of the shear wall with the large hole, the shear wall can be split into a shear wall coupling beam 18 structure and a wall limb structure below the hole for construction.

The wall panels can be split and combined for the special-shaped shear wall, so that the shear wall construction can be carried out based on the concept of the invention, as shown in fig. 20, 21, 22 and 23, the special-shaped shear wall is a schematic view of the split and combined structure of the wall panels of several common special-shaped wall limbs.

Example two:

the embodiment comprises the following steps:

step one, factory production, which comprises the following operations,

(1) and welding a reinforcing mesh on the production table board of the factory, welding and fixing the tie bar connecting piece on the reinforcing mesh, pouring fine stone concrete, maintaining and finishing the prefabrication and manufacturing of the single wallboard. The wall board is a surface layer structure of the permanent shear wall and replaces a template in the construction process.

For the inner wall board with the standard floor height, the standardized production can be carried out according to the wall height such as 2,78 m width, fixed length 9 m or 6 m; and cutting the single reinforced concrete thin plate into single reinforced concrete thin plates according to the actual required size of the single wall.

For the external wall panel, the external layer concrete of the shear wall, the reinforcing mesh, the tie bar connecting piece, the heat preservation layer, the protection layer, the decoration layer and the like are compounded into a whole.

(3) And for the wall with the small hole opening, additional reinforcing steel bars at the hole opening are additionally arranged at corresponding positions on the welded steel mesh.

(4) And various pipeline mounting holes are reserved on the board according to professional requirements of buildings, water, heat, electricity, decoration and the like.

(5) Various embedded parts, hanging parts, bolts, mounting holes and the like are reserved on the plate according to the requirements of construction transportation, hoisting and field installation, or grooves are reserved according to the assembly requirement.

(6) According to the requirement of the split design size of the shear wall, the two prefabricated reinforced concrete thin plates are aligned on the table top of a factory production table, the tie bars are installed at the positions of the tie bar connecting pieces, and the two prefabricated reinforced concrete thin plates are fixedly connected through the tie bars to form the prefabricated shear wall plate with the middle cavity.

(7) For the coupling beam; firstly, when the beam is short, the beam is manufactured into a prefabricated superposed beam in a factory; secondly, when the beam is long, the beam can be produced into a reinforced concrete thin plate groove-shaped template in a factory, and the beam connecting reinforcing steel bar is produced into a longitudinal bar and stirrup composite reinforcing steel bar truss which is directly hung in the groove-shaped template in a construction site.

(8) One of the shear wall edge component embedded column steel bars is directly processed into a longitudinal bar and stirrup composite steel bar truss in a factory and directly hoisted on a construction site, when the diameter of the vertical steel bar is larger, mechanical connection is adopted, the sleeve inserting connection technology of the patent technology is preferably selected, and when the diameter of the vertical steel bar is smaller, lap joint connection is adopted; secondly, when the hidden column reinforcing steel bars are complex, the hidden column reinforcing steel bars are bound on site, and then the shear wall plate is installed.

(9) And according to the special design requirements, prefabricating and manufacturing special components in a factory.

And step two, according to the information management requirement, a special hanging bracket or a special transport machine is adopted to transport the prefabricated part to a construction site, and the semi-finished product is required to be perfectly protected and not damaged.

And step three, hoisting the wallboards, namely hoisting two wallboards which are correspondingly arranged at the positions of the shear walls to be constructed, cleaning and leveling the construction surface of the structural base layer behind the wallboards, coating structural adhesive or concrete grouting material on the lower floorboards, and supporting and fixing the wallboards after the wallboards are hoisted.

Step four, hoisting and installing the hidden column steel bar frame of the shear wall edge component, hoisting the steel bar frame between the two wallboards, adopting mechanical connection when the diameter of the vertical steel bar is larger, preferably adopting the insertion sleeve connection technology of the patent technology of the inventor, and adopting lap joint connection when the diameter of the vertical steel bar is smaller; the binding, installation and fixation of the edge structure stirrup reinforcement can directly bind and install the shear wall concealed column reinforcement on the quite complicated concealed column parts of the E-shaped and the cross-shaped wall bodies, and then the closed local template is assembled.

And fifthly, mounting the prefabricated superposed coupling beam, mounting the coupling beam groove-shaped template, mounting the lower window wall and the like.

And step six, mounting the additional reinforcing steel bars of the connecting beam, mounting the additional reinforcing steel bars of the opening and the like.

Seventhly, installing various pipelines, junction boxes, interfaces and the like in the water heating power and weak current industries in the wall;

step eight, fixing a sealing plate, namely fixing the sealing plate between the two wallboards, and sealing a lateral opening between the two wallboards by the sealing plate; and for the window lower wall, when the window platform surface sealing plate is fixed, concrete pouring holes are reserved on the window platform surface.

And step nine, mounting the prefabricated composite floor slab and mounting the prefabricated composite floor beam.

And step ten, mounting the prefabricated staircase.

And eleventh, mounting a prefabricated balcony, a prefabricated overhanging component and the like.

And step twelve, mounting floor surface steel bars and beam surface steel bars, and connecting steel bars among floors at the lower part of the mounting wall.

And thirteen steps, fixing the wall body and the floor slab temporary support reliably, and checking and accepting floor hiding projects.

Fourteen, pouring concrete, and controlling a reasonable concrete pouring process; pouring concrete in a cavity between the two wallboards, when the wall body is higher, pouring the concrete in layers by using a lower guide pipe, and inspecting and pouring the concrete from a reserved hole on the windowsill surface on the lower wall of the window; the wall concrete should be compacted along with pouring and vibration; after the concrete on the floor is poured and initially set, the concrete is compacted, flattened and smeared to form a rough surface.

And fifthly, completing construction of the floor, entering the cycle construction of the upper floor, and dismantling the support frame of the lower floor.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention, and they should be construed as being included in the following claims and description.

Claims

1. The integral casting and quick building process of the prefabricated assembly type shear wall is characterized by comprising the following steps of:

prefabricating a wallboard and a reinforcing steel bar frame, namely prefabricating the reinforced concrete wallboard in a factory and prefabricating the reinforcing steel bar frame; the connecting piece on one wall plate comprises a tubular connecting piece with a step surface, the connecting piece on the other wall plate comprises a first sleeve formed by splicing at least two circumferentially uniformly distributed sleeve blocks, a sleeve ring is sleeved outside the first sleeve, a first mounting hole is formed in the first sleeve, at least two first mounting grooves are formed in the inner wall of the first mounting hole, a lock piece group is fixed in each first mounting groove, a first spring ring is sleeved outside the lock piece group in a hooping manner, the outer ring and the first spring ring of the lock piece group are clamped into the corresponding first mounting grooves, the inner ring of the lock piece group extends out of the corresponding first mounting groove, and the inner ring wall of each lock piece group is a conical surface with a large outside and a small inside; when the two wallboards are fixedly connected, only the limiting ring platform is processed at one end of the connecting steel bar, the annular grooves corresponding to the locking plate groups one by one are processed at the other end of the connecting steel bar, the end of the connecting steel bar sequentially penetrates through the two wallboards until the end of the steel bar is inserted into the first mounting hole corresponding to the first sleeve, and each locking plate group is clamped into the annular groove corresponding to the end of the connecting steel bar;

and fifthly, disassembling the sealing plate and finishing construction.

2. The precast assembled shear wall fast-casting process according to claim 1, characterized in that: and in the second step, before the wallboard is hoisted, structural adhesive or concrete reinforcing slurry with the thickness of at least 3mm is coated at the position where the wallboard is to be installed.

3. The precast assembled shear wall fast-casting process according to claim 2, characterized in that: in the second step, the two wallboards are fixedly connected and then integrally hoisted.

4. The precast assembled shear wall fast-casting process according to claim 3, characterized in that: in the first step, connectors for connecting reinforcing steel bars are pre-embedded in the prefabricated wall panels.

5. The precast assembled shear wall fast-casting process according to claim 4, characterized in that: in the second step, after the wall panels are hoisted in place, the inclined stay bar is arranged outside at least one of the wall panels.

6. The precast assembled shear wall cast-in-place and fast-building process according to claim 1, 2, 3, 4 or 5, characterized in that: in the first step, an insulating layer and/or a decorative layer are fixed outside the wall board prefabricated in a factory.

7. The precast assembled shear wall fast-casting process according to claim 6, characterized in that: and fourthly, before concrete is poured, a wire pipe is embedded in an interlayer between the two wallboards, an inspection box communicated with the wire pipe is installed in a hole at the lower end of each wallboard, and a junction box communicated with the wire pipe is installed in a hole at the middle of each wallboard.

8. The precast assembled shear wall cast-in-place and fast-building process according to claim 1, 2, 3, 4 or 5, characterized in that: and embedding a to-be-connected steel bar extending upwards in the to-be-installed part of the shear wall, inserting a vertical steel bar into the steel bar frame in the step two, connecting the lower end of the vertical steel bar with the to-be-connected steel bar, and extending the upper end of the vertical steel bar out of the upper end of the wallboard.

9. The precast assembled shear wall cast-in-place and fast-building process according to claim 1, 2, 3, 4 or 5, characterized in that: in the second step, each wallboard comprises at least two prefabricated wallboards which are spliced side by side, and in the second step, a reinforcing steel bar frame is arranged in an interlayer at the splicing position of the wallboards.