CN112144692A

CN112144692A - Method for mounting prefabricated bearing wall

Info

Publication number: CN112144692A
Application number: CN201910572277.4A
Authority: CN
Inventors: 薛庆文; 刘刚; 田泽辉; 林裕; 吴思杉; 王文珏
Original assignee: Chengdu Second Construction Engineering Co ltd Of Cdceg
Current assignee: Chengdu Second Construction Engineering Co ltd Of Cdceg
Priority date: 2019-06-28
Filing date: 2019-06-28
Publication date: 2020-12-29

Abstract

The invention discloses an installation method of a prefabricated bearing wall. The installation method of the prefabricated load-bearing wall comprises the following steps: 1) and (3) measurement and paying-off: popping up sidelines on the bottom surface of the prefabricated bearing wall body on the installation surface for installing the prefabricated bearing wall body, then popping up an X-direction control line which is parallel to one sideline and has a length matched with the sideline after moving towards the outside of the installation surface, and popping up Y-direction control lines at two ends of the X-direction control line; 2) leveling: controlling the flatness of the mounting surface by adopting at least two leveling test blocks to form a grouting bin body between the bottom surface of the prefabricated bearing wall body and the mounting surface; 3) hoisting and mounting the prefabricated bearing wall in place; 4) mounting a support component; 5) sealing a bin: plugging the side surface of the grouting bin body to form a bin sealing strip; 6) grouting. All the steps have a synergistic effect, so that the construction quality of the transition layer and the industrialized floor is reliable, the structure safety is ensured, and no hidden danger is left.

Description

Method for mounting prefabricated bearing wall

Technical Field

The invention relates to the technical field of assembly type buildings, in particular to an installation method of a prefabricated bearing wall.

Background

The prefabricated concrete structure building is a concrete structure type house building which is designed and built in a field assembly mode by mainly using reinforced concrete prefabricated components produced in a factory. Generally, the method is divided into two categories of fully assembled buildings and partially assembled buildings: the fully assembled building is generally a multi-storey building with low requirements for seismic fortification; the main prefabricated components of the partially assembled building are generally prefabricated components which are connected through cast-in-place concrete on site to form the building with an assembled integral structure. Because the prefabricated components are mechanically produced in a factory on a large scale, the production quality is good, the efficiency is high, and meanwhile, the on-site assembly construction of the prefabricated components has the advantages of water conservation, energy conservation, low labor cost, short construction period and the like, the prefabricated concrete structure building has the advantages of high construction speed, contribution to winter construction, high production efficiency, good product quality, reduction of material loss and the like, and has profound significance for promoting the development of green building materials and green building industries. Therefore, the realization of building industrialization is a necessary way for development, transformation and upgrade of the building industry and is revolutionary transformation of the production mode of the building industry.

However, as some industrial construction projects are operated successively, a set of standard technical system for controlling the construction quality of the fabricated concrete structure building is lacked, so that the construction technical means adopted in the implementation process of each project are greatly differentiated, and the construction quality control is not easy to be well guaranteed. Generally, the following problems are easily exposed during construction:

(1) the construction quality of the transition layer is poor and the cost is high.

In the project of assembling the integral concrete shear wall structure, the transition layer is used as a conversion layer of a lower cast-in-place concrete structure and an upper assembled concrete structure, is a full cast-in-place floor and is a key floor for pre-embedded parts such as a dowel, a steel plate, a diagonal bracing limiter and the like, so that the requirements on the construction precision of the dowel and the pre-embedded parts and the forming quality of concrete are high, and the technical requirements are strict. However, in the existing construction process, the transition layer is disturbed due to inaccurate positioning and infirm fixing, which directly results in rework, increases construction cost, and even ensures that the quality safety of the industrial floor cannot be guaranteed.

(2) The quality of the prefabricated parts in the industrial floors is not easy to control in the installation and construction.

The prefabricated components are various in types and generally comprise prefabricated walls, prefabricated columns, prefabricated beams, prefabricated composite floor slabs, prefabricated cladding panels, prefabricated PCF (Poly Crystal fiber) plates, prefabricated balconies, prefabricated air-conditioning plates, prefabricated floating window plates, prefabricated stairs, various special-shaped prefabricated components and the like. The installation of prefabricated components is a major difficulty of the whole assembly type building, and the prefabricated components are required to be accurately positioned and have high verticality control requirements. However, there is no matching process standard for the installation of various prefabricated components, so that the quality of the installation of the prefabricated components is greatly determined by the operation level of installation workers, and especially for the installation of the prefabricated exterior wall and the prefabricated PCF plate, if the deviation occurs due to the verticality, a large amount of polishing work for later decoration and finishing will occur, and raise dust pollution will also be caused while the construction cost is increased, which is contrary to the intention of green buildings.

Disclosure of Invention

The invention mainly aims to provide a method for installing a prefabricated bearing wall, a structure for installing the prefabricated bearing wall, a method for installing a prefabricated non-bearing wall and a structure for installing the prefabricated non-bearing wall, so as to solve the technical problems of inaccurate positioning, infirm fixing, substandard verticality and the like in the installation of a transition layer and a prefabricated part in the prior art. The invention also aims to provide a cast-in-place node formwork structure, which solves the technical problems of troublesome disassembly and assembly and slurry leakage of the existing formwork structure.

In order to achieve the above object, according to one aspect of the present invention, there is provided an installation method of a prefabricated load-bearing wall. The installation method of the prefabricated load-bearing wall comprises the following steps:

1) and (3) measurement and paying-off: popping up sidelines on the bottom surface of the prefabricated bearing wall body on the installation surface for installing the prefabricated bearing wall body, then popping up an X-direction control line which is parallel to one sideline and has a length matched with the sideline after moving towards the outside of the installation surface, and popping up Y-direction control lines at two ends of the X-direction control line;

2) leveling: controlling the flatness of the mounting surface by adopting at least two leveling test blocks to form a grouting bin body between the bottom surface of the prefabricated bearing wall body and the mounting surface;

3) hoisting and installing the prefabricated bearing wall in place: the mounting surface is provided with a convex steel bar, the lower part of the prefabricated bearing wall body is provided with a sleeve matched with the steel bar, and the steel bar is inserted into the sleeve to realize mounting in place;

4) installing a supporting component: the prefabricated bearing wall body which is installed in place is supported by the supporting assembly, and the installation direction and the verticality of the prefabricated bearing wall body are adjusted by the supporting assembly;

5) sealing a bin: plugging the side surface of the grouting bin body to form a bin sealing strip;

6) grouting: the sleeve is provided with a grout outlet at the upper part and a grouting hole at the lower part, and during grouting, one grouting hole is selected for grouting, so that grouting materials are filled in the grouting bin body and the sleeve.

Firstly, the arrangement of the X-direction control lines and the Y-direction control lines facilitates the adjustment of the direction of the prefabricated parts by taking the X-direction control lines and the Y-direction control lines as references after the prefabricated parts are hoisted, so that the prefabricated parts are more accurately positioned, and the butt joint of the prefabricated parts and other prefabricated parts is not influenced. The installation verticality of the prefabricated part can be improved by leveling, and the installation accuracy is further improved. Through setting up supporting component, not only can prevent slope, the displacement that takes place when prefabricated component installs, can also carry out further regulation to prefabricated component's installation direction and straightness that hangs down. All the steps have a synergistic effect, so that the construction quality of the transition layer and the industrialized floor is reliable, the structure safety is ensured, and no hidden danger is left. The reworking and repairing processes such as polishing, picking and the like caused by displacement of the prefabricated part in later-stage decoration and fitment engineering are avoided, dust raising and slag building are reduced, and manpower, financial resources and construction period are saved. The construction quality is practically improved, the reworking is avoided, and the method has the best economic and social benefits. The prefabricated bearing wall body is a prefabricated component with a bearing function, such as a prefabricated bearing wall and a prefabricated column.

Furthermore, the leveling test block is a gasket combination body, and each gasket combination body is formed by superposing at least two gaskets; preferably, the gasket is a circular steel sheet with the diameter of 20-40mm and the thickness of 1-5 mm. The gasket can have multiple thickness specifications, for example, existing 1mm thick, also have 2mm thick, also have 5mm thick, can adjust the gross thickness of each test block like this more freely, is convenient for quick the level. The gasket with the diameter can avoid blocking a grouting channel and influencing grouting material flow, and can also play the best supporting effect.

Furthermore, the number of the leveling test blocks is at least four, the four leveling test blocks are respectively positioned at four corners of the mounting surface, and the distance between the four leveling test blocks and the side line is 15-25 mm; and/or when the length of the prefabricated bearing wall body is more than or equal to 1m, the middle part of the installation surface is provided with the leveling test block. Therefore, on the premise of ensuring the optimal supporting effect, the grouting channel is prevented from being blocked and the flowing of grouting material is prevented from being influenced.

Further, the bin sealing strip is formed by curing seat slurry, and the height of the bin sealing strip is matched with that of the grouting bin body; thus, the optimal sealing effect can be achieved with less seat slurry. And/or the outer surface of the bin sealing strip is an inwards concave cambered surface; therefore, the bin sealing strip is not easy to damage.

Further, when prefabricated bearing wall is the outside wall of building, still include and carry out the caulking before prefabricated bearing wall hoists: the caulking strips are arranged on the side surface of the grouting bin body, which is positioned outside the building, and when the bin is sealed, the other three side surfaces of the grouting bin body are sealed to form bin sealing strips connected with the caulking strips; preferably, the caulking strips are made of elastic materials with the height larger than that of the grouting cabin body; further preferably, the caulking strip is rubber and plastic sponge, the width of the caulking strip is 3-5cm, and the height of the caulking strip is 0.5-2cm higher than the height of the grouting bin body. Through setting up the caulking strip, can prevent that grout material from spilling over and polluting the outer wall, can regard as grout storehouse body to supply external thermal insulation simultaneously. The caulking strips are arranged before hoisting, so that the operation difficulty of arranging the caulking strips after hoisting the prefabricated members of the external wall of the building can be avoided. The elastic material with the height larger than that of the grouting bin body is used as the caulking strip, so that the caulking strip can deform under the gravity pressing of the prefabricated part, gaps are fully filled, a better sealing effect is achieved, and the caulking strip is not easily extruded by grouting materials. One preferable choice of the material of the caulking strip is rubber-plastic sponge, which is a rubber-plastic heat-insulating material, and also is an elastic material with elastic closed pores, and has excellent performances of softness, winding resistance, cold resistance, heat resistance, flame retardance, water resistance, low thermal conductivity, shock absorption, sound absorption and the like. When the rubber-plastic sponge is adopted, the thickness of the caulking strip is preferably 0.5-2cm larger than that of the grouting bin body, and at the moment, the caulking strip can achieve the optimal sealing effect after being extruded. When the rubber-plastic sponge is adopted, the width of the caulking strip is preferably 3-5cm, so that the caulking strip can be effectively prevented from being extruded out of the grouting bin body by grouting materials.

Further, the method also comprises the following steps: arranging bin dividing strips in the mounting surface to form sub-bin bodies, popping out bin dividing control lines, and hoisting and mounting the prefabricated bearing wall in place after bin dividing; through dividing the storehouse, can prevent that the grout material leads to because of the space that flows is too big filling the grout storehouse body and just taking place to solidify not fully yet, and then influence the mobility of grout material, cause the grout storehouse body part region to form the hole because of failing by the slip casting to show reduction engineering quality and security. After the prefabricated part is hoisted, the bin dividing strips are pressed in the grouting bin body, if bin dividing control lines are not arranged, the bin dividing position cannot be determined after bin sealing, because grouting is preferably performed in the middle position of the sub-bin body, and if the position of the bin dividing lines is not clearly determined, grouting quality is difficult to ensure. Preferably, the bin dividing strip is made of an elastic material with the height larger than that of the grouting bin body or is formed by curing seat slurry; therefore, the caulking strips can deform under the gravity pressing of the prefabricated part, so that gaps are fully filled, and a better sealing effect and a better separation effect are achieved. Further preferably, the bin dividing strip is made of rubber and plastic sponge, the width of the bin dividing strip is 3-5cm, and the height of the bin dividing strip is 0.5-2cm higher than the height of the grouting bin body.

Furthermore, the distance between the bin dividing strips and the reinforcing steel bars on the mounting surface is more than or equal to 4 cm; therefore, the grouting material blocking grouting holes of the bin dividing strips is prevented from flowing out of the grouting material passing through or reducing the positions of the bin dividing strips. The length of the sub-bin body is less than or equal to 1 m; therefore, the grouting material can fully fill the sub-bin body before curing.

Furthermore, the supporting assembly comprises two U-shaped clamping seats respectively arranged on the surface of the prefabricated bearing wall body and the surface of the floor slab and a supporting mechanism with two ends respectively hinged with the two U-shaped clamping seats, and the supporting mechanism is provided with a telescopic structure; preferably, the supporting mechanism is provided with an outer sleeve, the two telescopic structures are respectively arranged at two ends of the outer sleeve, each telescopic structure comprises a positive and negative nut and a positive and negative adjusting screw rod which are in threaded connection, the positive and negative nuts are connected with the outer sleeve, one end of each positive and negative adjusting screw rod penetrates through the positive and negative nuts and then extends into the outer sleeve, and the other end of each positive and negative adjusting screw rod is connected with a corresponding U-shaped clamping seat; further preferably, a handle is provided on the outer sleeve. Therefore, the length of the positive and negative adjusting screw rod extending into the outer sleeve can be adjusted by holding the handle to rotate the outer sleeve, so that the length of the supporting mechanism is adjusted, and the perpendicularity and the installation direction of the prefabricated part are adjusted.

Furthermore, an upper group of supporting components and a lower group of supporting components are adopted; preferably, the height of the supporting point of the upper supporting assembly is more than or equal to 2/3 times of the height of the prefabricated bearing wall, the included angle between the supporting mechanism of the upper supporting assembly and the floor slab is 45-60 degrees, the height of the supporting point of the lower supporting assembly is 1/5-1/4 times of the height of the prefabricated bearing wall, and the included angle between the supporting mechanism of the lower supporting assembly and the floor slab is 30-45 degrees. Therefore, the best supporting effect is ensured, and the prefabricated parts are effectively prevented from tilting and displacing in the subsequent operation.

Furthermore, during bin sealing, a positioning part matched with the height of the grouting bin body is placed between the inner side of the forming position of the bin sealing strip and the sleeve, and the positioning part is pulled out after the bin sealing strip is formed; preferably, the positioning member has elasticity; more preferably, the positioning member is a hose. Through setting up locating part, can prevent to push away seat thick liquids in the time of sealing the storehouse and have crossed and stretch into the internal portion in the grouting storehouse and plug up grouting hole place grout passageway. Through adopting elastic locating component, not only can play better restriction effect, be convenient for moreover put into and pull out. The positioning component is preferably a hose which is cheap and easy to obtain, and the use effect is good.

In order to achieve the above object, according to another aspect of the present invention, there is also provided a prefabricated load-bearing wall installation structure. The mounting structure of the prefabricated bearing wall comprises a convex reinforcing steel bar arranged on a mounting surface for mounting the prefabricated bearing wall, a sleeve arranged on the lower part of the prefabricated bearing wall and matched with the reinforcing steel bar, at least two leveling test blocks arranged between the lower surface of the prefabricated bearing wall and the mounting surface so as to form a grouting bin body positioned between the prefabricated bearing wall and the mounting surface, a closed structure arranged on the periphery of the grouting bin body and a grouting material layer filled in the grouting bin body and the sleeve. The mounting structure is high in strength, the upper prefabricated bearing wall body is strong in binding force with the lower layer structure, the bearing effect can be fully exerted, the levelness of the upper surface of the prefabricated bearing wall body is high, and the mounting structure is beneficial to mounting of the lower layer prefabricated bearing wall body. The prefabricated bearing wall body is a prefabricated component with a bearing function, such as a prefabricated bearing wall and a prefabricated column.

Further, when the prefabricated bearing wall is an external wall of a building, the closed structure comprises caulking strips arranged on the side surface of the grouting bin body outside the building and bin sealing strips arranged on the other three side surfaces; when the prefabricated bearing wall body is a wall body in a building, the closed structure comprises bin sealing strips arranged on four side faces of the grouting bin body. Through setting up the caulking strip, can prevent that grout material from spilling over and polluting the outer wall, can regard as grout storehouse body to supply external thermal insulation simultaneously.

Furthermore, the caulking strips are made of elastic materials with the height larger than that of the grouting cabin body; therefore, the caulking strips can deform under the gravity pressing of the prefabricated parts, so that gaps are fully filled, a better sealing effect is achieved, and the caulking strips are not easily extruded by grouting materials. One preferable choice of the material of the caulking strip is rubber-plastic sponge, which is a rubber-plastic heat-insulating material, and also is an elastic material with elastic closed pores, and has excellent performances of softness, winding resistance, cold resistance, heat resistance, flame retardance, water resistance, low thermal conductivity, shock absorption, sound absorption and the like. When the rubber-plastic sponge is adopted, the thickness of the caulking strip is preferably 0.5-2cm larger than that of the grouting bin body, and at the moment, the caulking strip can achieve the optimal sealing effect after being extruded. When the rubber-plastic sponge is adopted, the width of the caulking strip is preferably 3-5cm, so that the caulking strip can be effectively prevented from being extruded out of the grouting bin body by grouting materials.

Further, the bin sealing strip is formed by curing base slurry, and the height of the bin sealing strip is matched with that of the grouting bin body; therefore, the optimal sealing effect can be achieved by adopting less base slurry; and/or the outer surface of the bin sealing strip is an inwards concave cambered surface, so that the bin sealing strip is not easy to damage.

Further, the grouting bin comprises a bin dividing strip which is arranged on the mounting surface and divides the grouting bin into at least two sub-bin bodies. Through dividing the storehouse, can prevent that the grout material leads to because of the space that flows is too big filling the grout storehouse body and just taking place to solidify not fully yet, and then influence the mobility of grout material, cause the grout storehouse body part region to form the hole because of failing by the slip casting to show reduction engineering quality and security.

Furthermore, the bin dividing strips are made of elastic materials with the height larger than that of the grouting bin body or are formed by solidifying seat slurry. Preferably, the bin dividing strips are made of elastic materials with the height larger than that of the grouting bin body, so that the caulking strips deform under the gravity pressing of the prefabricated parts, gaps are fully filled, and a better sealing effect and a better separation effect are achieved. Preferably, the bin dividing strip is made of rubber and plastic sponge, the width of the bin dividing strip is 3-5cm, and the height of the bin dividing strip is 0.5-2cm higher than the height of the grouting bin body.

Furthermore, the distance between the bin dividing strips and the reinforcing steel bars on the mounting surface is more than or equal to 4 cm; therefore, the bin sealing strip is prevented from blocking the grouting hole and allowing grouting material to pass through or reducing the outflow pressure of the grouting material at the bin dividing strip. The length of the sub-bin body is less than or equal to 1 m. Therefore, the grouting material can fully fill the sub-bin body before curing.

Furthermore, the leveling test block is a gasket combination, and each gasket combination is formed by superposing at least two gaskets. Thus, the total height of the test block can be adjusted by adjusting the number of the pads constituting the test block.

Furthermore, the gasket is a circular steel sheet with the diameter of 20-40mm and the thickness of 1-5 mm. The gasket can have multiple thickness specifications, for example, existing 1mm thick, also have 2mm thick, also have 5mm thick, can adjust the gross thickness of each test block like this more freely, is convenient for quick the level. The gasket with the diameter can avoid blocking a grouting channel and influencing grouting material flow, and can also play the best supporting effect.

Furthermore, the number of the leveling test blocks is at least four, the four leveling test blocks are respectively positioned at four corners of the mounting surface, and the distance between the four leveling test blocks and a side line of the bottom surface of the prefabricated bearing wall body is 15-25 mm; therefore, the grouting channel is prevented from being blocked and the flow of grouting material is prevented from being influenced. And/or when the length of the prefabricated bearing wall body is more than or equal to 1m, the middle part of the installation surface is provided with the leveling test block. Thereby, an optimal supporting effect is ensured.

In order to achieve the above objects, according to another aspect of the present invention, there is also provided a method of installing a prefabricated non-load bearing wall. The mounting method of the prefabricated non-bearing wall comprises the following steps:

1) and (3) measurement and paying-off: popping up side lines of the bottom surface of the prefabricated non-bearing wall on an installation surface for installing the prefabricated non-bearing wall, then popping up an X-direction control line which is parallel to one side line and has a length matched with the side line after moving towards the outside of the installation surface, and popping up Y-direction control lines at two ends of the X-direction control line;

2) leveling: controlling the flatness of the mounting surface by adopting at least two leveling test blocks to form a butt joint seam between the bottom surface of the prefabricated non-bearing wall and the mounting surface;

3) setting slurry: pouring base slurry on the mounting surface to form a base slurry layer for filling the butt joint according to the leveling height of the leveling test block;

4) hoisting and installing the prefabricated non-bearing wall in place: hoisting the prefabricated non-load-bearing wall on the base slurry layer;

5) installing a supporting component: the prefabricated non-bearing wall is supported by the supporting component after being installed in place, and the installation direction and the verticality of the prefabricated non-bearing wall are adjusted by the supporting component;

6) binding cast-in-place node steel bars, building a formwork structure and pouring concrete: and sequentially binding the reinforcing steel bars on two sides of the prefabricated non-bearing wall and the reinforcing steel bars of the adjacent wall body, building a formwork structure and pouring concrete.

Firstly, the arrangement of the X-direction control lines and the Y-direction control lines facilitates the adjustment of the direction of the prefabricated parts by taking the X-direction control lines and the Y-direction control lines as references after the prefabricated parts are hoisted, so that the prefabricated parts are more accurately positioned, and the butt joint of the prefabricated parts and other prefabricated parts is not influenced. The installation verticality of the prefabricated part can be improved by leveling, and the installation accuracy is further improved. Through setting up supporting component, not only can prevent slope, the displacement that takes place when prefabricated component installs, can also carry out further regulation to prefabricated component's installation direction and straightness that hangs down. All the steps have a synergistic effect, so that the construction quality of the transition layer and the industrialized floor is reliable, the structure safety is ensured, and no hidden danger is left. The reworking and repairing processes such as polishing, picking and the like caused by displacement of the prefabricated part in later-stage decoration and fitment engineering are avoided, dust raising and slag building are reduced, and manpower, financial resources and construction period are saved. The construction quality is practically improved, the reworking is avoided, and the method has the best economic and social benefits.

Further, after moving 150-500mm to the outside of the installation surface, an X-direction control line which is parallel to one side line and has a matched length is ejected. The larger the spacing, the larger the area that needs to be cleaned, resulting in a significant build-up of building material in other areas. However, if the distance is too small, the image is easily blocked, which is not easy to observe.

Furthermore, the leveling test block is a gasket combination, and each gasket combination is formed by superposing at least two gaskets. Therefore, the height of each test block can be adjusted more freely, and quick leveling is facilitated.

Furthermore, the gasket is a square steel plate with the side length of 20-40mm and the thickness of 1-5 mm. The gasket can have multiple thickness specifications, for example, existing 1mm thick, also have 2mm thick, also have 5mm thick, can adjust the gross thickness of each test block like this more freely, is convenient for quick the level. The gasket with the diameter can play the best supporting effect.

Furthermore, the number of the leveling test blocks is at least four, the four leveling test blocks are respectively positioned at four corners of the mounting surface, and the distance between the four leveling test blocks and the side line is 15-25 mm; and/or when the length of the prefabricated non-bearing wall is more than or equal to 1m, the middle part of the installation surface is provided with the leveling test block. Thereby, an optimal supporting effect is ensured.

Further, when the prefabricated non-bearing wall is an external wall of a building, the method further comprises the following steps of caulking before setting grout: and a caulking strip is arranged on the side surface of the butt joint positioned outside the building.

Furthermore, the caulking strips are made of elastic materials with the height larger than that of the butt joint seam; preferably, the caulking strips are rubber and plastic sponges, the width of the caulking strips is 1.5-2.5cm, and the height of the caulking strips is 0.5-2cm larger than that of the seams. Compared with the prefabricated bearing wall, the prefabricated non-bearing wall has no grouting operation in the installation process, and the pressure for extruding the caulking strips can not be generated, so that the caulking strips adopted by the installation of the prefabricated non-bearing wall can have smaller width.

Furthermore, an upper group of support components and a lower group of support components are adopted, and each group comprises at least two support components; preferably, the height of the supporting point of the upper supporting assembly is more than or equal to 2/3 times of the height of the prefabricated non-bearing wall, the included angle between the supporting mechanism of the upper supporting assembly and the floor slab is 45-60 degrees, the height of the supporting point of the lower supporting assembly is 1/5-1/4 times of the height of the prefabricated non-bearing wall, and the included angle between the supporting mechanism of the lower supporting assembly and the floor slab is 30-45 degrees. Therefore, the best supporting effect is ensured, and the prefabricated parts are effectively prevented from tilting and displacing in the subsequent operation.

In order to achieve the above objects, according to another aspect of the present invention, there is also provided a prefabricated non-load-bearing wall installation structure. This mounting structure of prefabricated non-bearing wall includes: the number of the leveling test blocks is at least two, and the leveling test blocks are arranged on the installation surface for installing the prefabricated non-bearing wall and form a butt joint seam between the bottom surface of the prefabricated non-bearing wall and the installation surface; and the seat slurry layer comprises seat slurry filled in the butt joint seam, and the height of the seat slurry layer is matched with the leveling height of the leveling test block.

The installation straightness that hangs down of prefabricated component can be promoted to the test block of making level, further promotes the installation accuracy. The slurry layer of the base is filled under the plane found by the leveling test block, so that the plane with higher quality can be improved for the prefabricated non-bearing wall. The prefabricated non-bearing wall is a prefabricated wall body without a bearing function or poor in bearing function, and is generally a prefabricated bearing wall and a prefabricated exterior cladding.

Further, when the prefabricated non-bearing wall is an external wall of a building, the mounting structure further comprises caulking strips arranged on the side surfaces of the butt joints, which are positioned outside the building. Through setting up the caulking strip, can prevent that seat thick liquids from spilling over and polluting the outer wall, can regard as the external heat preservation of butt joint supplementary simultaneously.

Further, the caulking strips are made of elastic materials with the height larger than that of the base slurry layer. The elastic material with the height larger than that of the butt joint is used as the caulking strip, so that the caulking strip can deform under the gravity pressing of the prefabricated part, the gap is fully filled, and a better sealing effect is achieved.

Furthermore, the caulking strips are made of rubber and plastic sponge, the width of the caulking strips is 1.5-2.5cm, and the height of the caulking strips is 0.5-2cm higher than that of the seams. The rubber-plastic sponge is a rubber-plastic heat-insulating material, is also an elastic material with elastic closed pores, and has the excellent performances of softness, winding resistance, cold resistance, heat resistance, flame retardance, water resistance, low heat conductivity, shock absorption, sound absorption and the like. When the rubber-plastic sponge is adopted, the thickness of the caulking strip is preferably 0.5-2cm larger than that of the seam, and at the moment, the caulking strip can achieve the optimal sealing effect after being extruded. When rubber-plastic sponge is used, the width of the caulking strip is preferably 3-5 cm.

Furthermore, the number of the leveling test blocks is at least four, and the four leveling test blocks are respectively positioned at four corners of the mounting surface. Thereby, an optimal supporting effect is ensured.

Furthermore, the distance between the leveling test block and the sideline of the bottom surface of the prefabricated non-bearing wall is 15-25 mm. Thereby, an optimal supporting effect is ensured.

Further, when the length of the prefabricated non-bearing wall is larger than or equal to 1m, the middle of the installation surface is provided with the leveling test block. Thereby, an optimal supporting effect is ensured.

In order to achieve the above object, according to another aspect of the present invention, there is also provided a T-shaped cast-in-place node formwork structure, wherein a prefabricated wall body connected with the cast-in-place node comprises two horizontal prefabricated outer walls and one vertical prefabricated inner wall, and the prefabricated outer wall comprises an inner leaf wallboard, an insulating layer and an outer leaf wallboard which are sequentially connected from inside to outside. The T-shaped cast-in-place node formwork structure comprises two L-shaped inner formworks, an outer formwork and a fastening assembly, wherein the shapes of the L-shaped inner formworks are matched with the shapes of the inner sides of nodes; the fastening assembly comprises an L-shaped first rod body arranged outside the inner formwork, a second rod body arranged outside the outer formwork, a first connecting mechanism for connecting the first rod body, the prefabricated outer wall and the second rod body, and a second connecting mechanism for connecting the two first rod bodies.

Furthermore, the device comprises a plurality of groups of fastening components distributed from top to bottom, and the distance between every two adjacent fastening components is 0.3-1 m; (ii) a And a waterproof layer is arranged on the butt joint surface of the inner template and the prefabricated outer wall and/or the prefabricated inner wall. Therefore, the supporting effect is further improved, and concrete is prevented from overflowing.

Furthermore, the first connecting mechanism comprises a first pair of pull screws and buckles, wherein the first pair of pull screws sequentially penetrate through the first rod body, the prefabricated outer wall and the second rod body; the second connecting mechanism comprises a second pair of pull screws penetrating through the two first rod bodies and the two inner formworks and buckles arranged at two ends of the second pair of pull screws. Thereby, easy dismouting and fastening.

Furthermore, a sleeve matched with the width of the node is sleeved outside the second pair of pull screws; and a sealing ring is arranged on the contact surface of the second counter-pulling screw rod and the inner template. Therefore, the form removal is facilitated and the concrete is prevented from overflowing from the contact part of the second pair of pulling screws and the inner formwork.

Further, the outer formworks are including locating the XPS heated board of the heat preservation butt joint department of two prefabricated outer walls. Thereby, heat retaining property is ensured.

Further, the outer template still including locating the waterproof board of the outer page wallboard butt joint department of two prefabricated outer walls. From this, promote the heat preservation effect when waterproof.

Furthermore, the inner template comprises two mutually perpendicular sub-templates and an elastic sealing strip arranged at the joint of the two sub-templates. If the two sub-templates are directly spliced, slurry is easy to overflow at the joint because the joint is long; through setting up the elastic sealing strip, can make the clearance between the two fully filled by the elastic sealing strip under the extrusion of two submodules, prevent effectively that the slurry from spilling over, even the submodule has certain wearing and tearing to the interface, also can prevent that the slurry from spilling over.

Further, the sub-templates are wood plates with the thickness of 3-8 cm; the elastic sealing strip is a rubber-plastic sponge strip matched with the thickness of the sub-template. The wood board and the rubber-plastic sponge strip are combined, so that the wood board and the rubber-plastic sponge strip are cheap and easy to obtain, light in weight and easy to install and transport.

Further, still including locating vertical cage bone between first body of rod and the interior template. Therefore, the supporting effect is further improved, and concrete is prevented from overflowing.

Furthermore, the vertical cage bones are a plurality of battens with the spacing of 5-15cm and the width of 3-5 cm. Therefore, the supporting effect is good and easy to obtain.

In order to achieve the above object, according to another aspect of the present invention, there is also provided an L-shaped cast-in-place node formwork structure, wherein a prefabricated wall connected to the cast-in-place node includes an L-shaped prefabricated PCF plate and prefabricated outer walls at two ends thereof, the prefabricated outer wall includes an inner leaf wall plate, an insulating layer and an outer leaf wall plate which are sequentially connected from inside to outside, the prefabricated PCF plate includes an insulating layer and an outer leaf wall plate which are sequentially connected from inside to outside, and the prefabricated PCF plate is located outside the node. The L-shaped cast-in-place node formwork structure comprises an L-shaped inner formwork, an outer formwork and a fastening assembly, wherein the shape of the L-shaped inner formwork is matched with the shape of the inner side of a node; the fastening assembly comprises an L-shaped first rod body arranged outside the inner template, an L-shaped second rod body arranged outside the prefabricated PCF plate and a connecting mechanism connected with the first rod body, the prefabricated outer wall and the second rod body. This formwork structure's support effect is good, and the concrete can be filled in whole node fully, promotes the cohesion of node and neighbouring wall body, the phenomenon that the concrete spills over from the butt joint can not appear, and formwork structure is easy dismouting, and obtains node structure surfacing after the form removal, has higher quality.

Furthermore, the device comprises a plurality of groups of fastening assemblies distributed from top to bottom, and the distance between every two adjacent fastening assemblies is 0.3-1 m. Therefore, the supporting effect is further improved, and concrete is prevented from overflowing.

Further, coupling mechanism is including passing the buckle at the split screw rod and locating the split screw rod both ends of first body of rod, prefabricated outer wall, the second body of rod in proper order. Thereby, easy dismouting and fastening.

Further, the outer template is including locating the XPS heated board of the heat preservation butt joint department of adjacent wall body. Thereby, heat retaining property is ensured.

Furthermore, the outer template also comprises a waterproof board arranged at the butt joint of the outer leaf wallboards of the adjacent walls. From this, promote the heat preservation effect when waterproof.

And furthermore, a waterproof layer is arranged on the butt joint surface of the inner template and the prefabricated outer wall. Thereby, the slurry overflow is further suppressed.

In order to achieve the above object, according to another aspect of the present invention, there is provided a cast-in-place node formwork structure, where a prefabricated column is arranged below the node, and at least two prefabricated composite beams connected to the prefabricated column and a prefabricated composite floor slab connecting adjacent prefabricated composite beams are arranged on the side surface of the node; the formwork structure comprises an outer formwork, a connecting assembly for connecting the outer formwork on the opposite side of the joint, a waterproof structure and a steel bar fixer; when the number of the prefabricated superposed beams is four, the outer template comprises a first outer template; when the number of the prefabricated superposed beams is two or three, the outer formworks comprise a first outer formwork and a second outer formwork; the first outer templates comprise first sub-templates matched with the side faces of the prefabricated superposed beams and second sub-templates matched with the side faces of the nodes, the first sub-templates and the second sub-templates are perpendicular to each other, and every two first outer templates are arranged between two prefabricated superposed beams outside the adjacent side faces of the nodes and connected through the second sub-templates; the upper surface of the first external template is matched with the lower surface of the prefabricated composite floor slab; the second outer template is arranged outside the side surface of the node without the prefabricated superposed beam; and the upper surface mounting height of the second outer template is more than or equal to that of the prefabricated composite floor slab.

In the cast-in-place node above the precast column, the node structure is diversified due to different numbers of precast superposed beams, so that few supporting formwork structures which can adapt to various types of node structures exist. The prefabricated column node structure can meet various types of prefabricated column node structures through the mutual matching of the first outer template and the second outer template, each surface of the node is effectively supported, the positioning is accurate, the installation precision is high, the combination with a wall body is stable after installation, the abutted seam is tight, the deviation is not easy to occur, the phenomena of slurry leakage and mold expansion can be effectively prevented, and the stability of the wall body can be maintained.

Furthermore, the height of the matching surface between the lower part of the first outer template and/or the second outer template and the prefabricated column is more than or equal to 3 cm. Thus, slurry leakage is effectively prevented.

Further, when the number of the prefabricated superposed beams is three, the length of the second outer template is more than or equal to the width of the side surface of the node; when the number of the prefabricated superposed beams is two, the two adjacent second outer templates are welded into a whole.

Further, the prefabricated composite floor slab is provided with a turning surface matched with the node turning part. Therefore, the matching surface area is large, and slurry is not easy to leak.

Further, the second outer template is formed by splicing two first outer templates. Therefore, the number of the external templates is small, and unified management is facilitated.

And furthermore, two first outer templates arranged between two prefabricated superposed beams on the outer portions of the adjacent side surfaces of the nodes are connected through welding through a second sub-template. From this, prevent to leak thick liquid, and simple to operate, the equipment management of being convenient for.

Further, waterproof construction is including locating the waterproof layer on the mating surface of exterior sheathing and prefabricated post and/or prefabricated superposed beams.

Furthermore, the waterproof structure comprises an elastic sealing strip arranged between the upper surface of the first outer template and the lower surface of the prefabricated superposed beam. Because the matching surface of the formwork structure and the prefabricated composite floor slab is very small, the elastic sealing strip has better waterproof and slurry leakage preventing effects than a spraying waterproof layer.

Further, the elastic sealing strip is a rubber and plastic sponge strip.

Further, still include the reinforcing bar fixer, the reinforcing bar fixer is "returning" font, and its size matches with node cross section size, and is equipped with the through-hole that supplies prefabricated post reinforcing bar to pass. From this, prevent that prefabricated post reinforcing bar from taking place the skew when concrete placement to influence the butt joint of this layer of prefabricated post reinforcing bar and the telescopic of the prefabricated post of last layer.

Furthermore, the connecting assembly comprises a counter-pulling screw and a buckle, wherein the counter-pulling screw sequentially penetrates through the second sub-template, the node and the corresponding second sub-template or second outer template, and the buckle is used for fastening two ends of the counter-pulling screw; and/or the formwork structure comprises at least two groups of connecting components distributed from top to bottom.

Further, first outer template and second outer template include bottom plate, riser all around and locate on the bottom plate and connect the strengthening rib of the riser that sets up relatively, and every group coupling assembling locates between two strengthening ribs and the buckle is located the strengthening rib outside. Therefore, the strength is high, the connection is more stable, and the die expansion phenomenon cannot occur.

Therefore, the invention can ensure the construction quality of the transition layer and the industrialized floor to be reliable, ensure the structure safety without hidden danger, avoid the working procedures of reworking and repairing such as polishing, picking and the like caused by the displacement of the prefabricated part in the later decoration project, reduce the generation of raised dust and construction slag, save manpower, financial resources and construction period, practically improve the construction quality, avoid reworking and have the best economic and social benefits.

The invention is further described with reference to the following figures and detailed description. Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, are included to assist in understanding the invention, and are included to explain the invention and their equivalents and not limit it unduly. In the drawings:

fig. 1 is a plan view of a prefabricated load-bearing wall installation structure according to embodiment 1 of the present invention.

Fig. 2 is a side view of a prefabricated load-bearing wall installation structure according to embodiment 1 of the present invention.

Fig. 3 is an enlarged view of a portion a in fig. 2.

Fig. 4 is a schematic view of a sealing chamber in the installation method of the prefabricated load-bearing wall body in embodiment 1 of the present invention.

Fig. 5 is a plan view of a prefabricated load-bearing wall installation structure according to embodiment 2 of the present invention.

Fig. 6 is a side view of a prefabricated load-bearing wall installation structure according to embodiment 2 of the present invention.

Fig. 7 is a plan view of a prefabricated load-bearing wall installation structure according to embodiment 3 of the present invention.

Fig. 8 is a side view of the prefabricated load-bearing wall installation structure according to embodiment 3 of the present invention.

Fig. 9 is a plan view of a prefabricated load-bearing wall installation structure according to embodiment 4 of the present invention.

Fig. 10 is a side view of the prefabricated load-bearing wall installation structure according to embodiment 4 of the present invention.

Fig. 11 is a top view of a prefabricated non-load-bearing wall installation structure according to example 5 of the present invention.

Fig. 12 is a side view of a prefabricated non-load-bearing wall installation structure according to example 5 of the present invention.

Fig. 13 is an enlarged view at B in fig. 12.

Fig. 14 is a top view of a non-prefabricated load-bearing wall installation structure according to example 6 of the present invention.

Fig. 15 is a side view of a non-prefabricated load-bearing wall installation structure according to example 6 of the present invention.

Fig. 16 is a schematic view of a T-shaped cast-in-place node formwork structure according to embodiment 7 of the present invention.

Fig. 17 is a schematic view of an L-shaped cast-in-place node formwork structure according to embodiment 8 of the present invention.

Fig. 18 is a schematic structural view of a cast-in-place node according to embodiment 9 of the present invention in a complete state of a formwork structure.

Fig. 19 is a schematic structural diagram of a formwork structure of a cast-in-place node according to embodiment 9 of the present invention, when part of the formwork structure is not shown.

Fig. 20 is a schematic structural view of a connection state of an outer formwork and a connection member of a formwork structure of a cast-in-place node according to embodiment 9 of the present invention.

Fig. 21 is a schematic structural diagram of a formwork structure of a cast-in-place node according to embodiment 10 of the present invention, when part of the formwork structure is not shown.

Fig. 22 is a schematic structural diagram of a formwork structure of a cast-in-place node according to embodiment 11 of the present invention, when part of the formwork structure is not shown.

Fig. 23 is a schematic structural diagram of a formwork structure of a cast-in-place node according to embodiment 12 of the present invention, when part of the formwork structure is not shown.

Fig. 24 is a schematic structural diagram of a formwork structure of a cast-in-place node according to embodiment 13 of the present invention, when part of the formwork structure is not shown.

The relevant references in the above figures are:

in examples 1 to 4: 10-sideline, 11-X direction control line, 12-Y direction control line, 13-bin control line, 2-test block, 3-bin dividing strip, 4-bin sealing strip, 5-caulking strip, 6-grouting layer, 71-inner leaf wallboard, 72-heat preservation layer, 73-outer leaf wallboard, 74-sleeve, 741-grout outlet, 742-grout hole, 75-reinforcing steel bar, 8-hose, 92-U-shaped clamping seat, 93-outer sleeve, 94-positive and negative nut, 95-positive and negative adjusting screw rod, 96-handle and 100-rubber plug.

In examples 5 to 6: 1 a-test block, 10 a-sideline, 11a-X direction control line, 12a-Y direction control line, 2 a-base sizing agent layer, 3 a-caulking strip, 71 a-inner page wallboard, 72 a-insulating layer and 73 a-outer page wallboard.

In example 7: 1 b-prefabricated outer wall, 10 b-inner leaf wallboard, 11 b-heat insulation layer, 12 b-outer leaf wallboard, 2 b-prefabricated inner wall, 31 b-sub-formwork, 32 b-elastic sealing strip, 41b-XPS heat insulation board, 42 b-waterproof board, 51 b-first rod body, 52 b-second rod body, 61 b-first pair of pull screw rods, 62 b-second pair of pull screw rods, 621 b-sealing ring, 622 b-sleeve, 63 b-buckle, 7 b-wood strip and 8 b-waterproof layer.

In example 8: the composite board comprises 1 c-prefabricated outer walls, 10 c-inner leaf wall boards, 11 c-heat insulation layers, 12 c-outer leaf wall boards, 2 c-prefabricated PCF boards, 31 c-sub-templates, 32 c-elastic sealing strips, 41c-XPS heat insulation boards, 42 c-waterproof boards, 51 c-first rod bodies, 52 c-second rod bodies, 61 c-counter-pulling screw rods, 62 c-buckles, 7 c-wood strips and 8 c-waterproof layers.

In examples 9 to 12: the prefabricated steel plate comprises 1 d-prefabricated columns, 2 d-prefabricated superposed beams, 3 d-prefabricated superposed floors, 31 d-turning surfaces, 41 d-first outer formworks, 411 d-first sub formworks, 412 d-second sub formworks, 42 d-second outer formworks, 43 d-bottom plates, 44 d-vertical plates, 45 d-reinforcing ribs, 5 d-connecting assemblies, 51 d-split screws, 52 d-buckles, 6 d-elastic sealing strips, 7 d-reinforcing steel bar fixers and 8 d-wood formworks.

Detailed Description

The invention will be described more fully hereinafter with reference to the accompanying drawings. Those skilled in the art will be able to implement the invention based on these teachings. Before the present invention is described in detail with reference to the accompanying drawings, it is to be noted that:

the technical solutions and features provided in the present invention in the respective sections including the following description may be combined with each other without conflict.

Moreover, the embodiments of the present invention described in the following description are generally only some embodiments of the present invention, and not all embodiments. Therefore, all other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without any creative effort shall fall within the protection scope of the present invention.

With respect to terms and units in the present invention. The terms "comprising," "having," and any variations thereof in the description and claims of this invention and the related sections are intended to cover non-exclusive inclusions.

Example 1

The prefabricated bearing wall body of this embodiment is prefabricated bearing wall, and its length is greater than 1m, for building outside wall body, needs caulking and branch storehouse during the installation.

The mounting method of the prefabricated load-bearing wall comprises the following steps:

1) measuring line

As shown in fig. 1 and 4, popping up sidelines 10 at the bottom surface of the prefabricated load-bearing wall on a mounting surface for mounting the prefabricated load-bearing wall, then popping up an X-direction control line 11 which is parallel to the sidelines 10 at the bottom of the inner surface and has a length matched with the length after moving to the outside of the mounting surface for 250mm, and popping up Y-direction control lines 12 at two ends of the X-direction control line 11;

2) leveling

As shown in fig. 1-3, six leveling test blocks 2 are adopted to control the flatness of the installation surface, so that a grouting bin body is formed between the bottom surface of the prefabricated bearing wall and the installation surface; the four leveling test blocks 2 are respectively positioned at four corners of the mounting surface, the distance between the four leveling test blocks 2 and the sideline 10 is 20mm, and the two leveling test blocks 2 are arranged in the middle of the mounting surface;

the leveling test block 2 is a gasket assembly, each gasket assembly is formed by overlapping at least two gaskets, and each gasket is a circular steel sheet with the diameter of 30mm and the thickness of 1-5 mm;

3) caulking

As shown in fig. 1-3, caulking strips 5 are arranged on the side surface of the grouting bin body positioned outside the building; the caulking strip 5 is made of an elastic material with the height larger than that of the grouting bin body; the caulking strip 5 is made of rubber and plastic sponge, the width of the caulking strip is 5cm, and the height of the caulking strip is 1cm higher than the height of the grouting bin body.

4) Separate warehouse

As shown in fig. 1, a bin dividing strip 3 is arranged in the mounting surface along the direction of the Y-direction control line 12 to form a sub-bin body, and a bin dividing control line 13 is ejected out of the mounting surface along the Y-direction; the bin dividing strips 3 are made of elastic materials with the height larger than that of the grouting bin body; the bin dividing strip 3 is made of rubber and plastic sponge, the width of the bin dividing strip is 5cm, and the height of the bin dividing strip is 1cm higher than the height of the grouting bin body; the distance between the bin dividing strips 3 and the reinforcing steel bars 75 on the mounting surface is more than or equal to 4 cm; the length of the sub-bin body is less than or equal to 1 m.

5) Prefabricated bearing wall hoist and mount are taken one's place

The mounting surface is provided with a convex steel bar 75, the lower part of the prefabricated load-bearing wall is provided with a sleeve 74 matched with the steel bar 75, and the steel bar 75 is inserted into the sleeve 74 to realize mounting in place;

6) installation supporting component

As shown in fig. 2, the inner surface of the prefabricated bearing wall is supported by the supporting component after being installed in place, and the installation direction and the verticality of the prefabricated bearing wall are adjusted by the supporting component;

an upper group of supporting components and a lower group of supporting components are adopted, and each group comprises three supporting components; the height of the supporting point of the upper supporting assembly is more than or equal to 2/3 times of the height of the prefabricated bearing wall, the included angle between the supporting mechanism of the upper supporting assembly and the floor slab is 50 degrees, the height of the supporting point of the lower supporting assembly is 1/5-1/4 times of the height of the prefabricated bearing wall, and the included angle between the supporting mechanism of the lower supporting assembly and the floor slab is 40 degrees;

7) sealing bin

As shown in fig. 1-4, three side surfaces of the grouting bin body, on which no caulking strip 5 is arranged, are blocked to form a bin sealing strip 4 connected with the caulking strip 5; the bin sealing strip 4 is formed by curing seat slurry, the height of the bin sealing strip 4 is matched with that of the grouting bin body, and the outer surface of the bin sealing strip 4 is an inwards concave cambered surface; as shown in fig. 4, during the sealing of the bin, firstly, a hose 8 matched with the height of the grouting bin body is placed between the inner side of the forming position of the bin sealing strip 4 and the sleeve 74, and the hose 8 is drawn out after the bin sealing strip 4 is formed;

8) grouting agent

As shown in fig. 2-4, the sleeve 74 has an upper grout outlet 741 and a lower grout hole 742, and when grouting, one grout hole 742 is selected for each sub-cartridge body to be grouted so that the grouting can fill the grouting cartridge body and the sleeve 74.

As shown in fig. 1-3, the installation structure of the prefabricated bearing wall includes a protruding reinforcing bar 75 disposed on an installation surface, a sleeve 74 disposed on a lower portion of the prefabricated bearing wall and engaged with the reinforcing bar 75, six leveling test blocks 2 disposed between a lower surface of the prefabricated bearing wall and the installation surface to form a grouting cabin body located between the prefabricated bearing wall and the installation surface, a sealing structure disposed around the grouting cabin body, a sub-cabin strip 3 disposed on the installation surface and dividing the grouting cabin body into at least two sub-cabin bodies, and a grouting material layer 6 filled in the grouting cabin body and the sleeve 74. The closed structure comprises caulking strips 5 arranged on the side surfaces, located outside the building, of the grouting bin body and bin sealing strips 4 arranged on the other three side surfaces.

Example 2

The prefabricated bearing wall body of this embodiment is prefabricated bearing wall, and its length is greater than 1m, for building interior wall body, need not the caulking during the installation, but needs the branch storehouse.

1) measuring line

As shown in fig. 5-6, popping up sidelines 10 at the bottom surface of the prefabricated load-bearing wall on a mounting surface for mounting the prefabricated load-bearing wall, then popping up an X-direction control line 11 which is parallel to the bottom sidelines 10 of the side surface with larger area and has matched length after moving 150mm to the outside of the mounting surface, and popping up Y-direction control lines 12 at two ends of the X-direction control line 11;

2) leveling

As shown in fig. 5-6, six leveling test blocks 2 are adopted to control the flatness of the installation surface, so that a grouting bin body is formed between the bottom surface of the prefabricated bearing wall and the installation surface; the four leveling test blocks 2 are respectively positioned at four corners of the mounting surface, the distance between the four leveling test blocks 2 and the sideline 10 is 25mm, and the two leveling test blocks 2 are arranged in the middle of the mounting surface;

the leveling test block 2 is a gasket assembly, each gasket assembly is formed by overlapping at least two gaskets, and each gasket is a circular steel sheet with the diameter of 40mm and the thickness of 1-5 mm;

3) separate warehouse

As shown in fig. 5-6, arranging the bin dividing strips 3 in the mounting surface along the direction of the Y-direction control line 12 to form sub-bin bodies, and ejecting the bin dividing control line 13 out of the mounting surface along the Y-direction; the bin dividing strips 3 are made of elastic materials with the height larger than that of the grouting bin body; the bin dividing strip 3 is made of rubber and plastic sponge, the width of the bin dividing strip is 5cm, and the height of the bin dividing strip is 0.5cm higher than the height of the grouting bin body; the distance between the bin dividing strips 3 and the reinforcing steel bars 75 on the mounting surface is more than or equal to 4 cm; the length of the sub-bin body is less than or equal to 1 m.

4) Prefabricated bearing wall hoist and mount are taken one's place

5) installation supporting component

As shown in fig. 2, the side face with a larger area of the prefabricated bearing wall which is installed in place is supported by the supporting component, and the installation direction and the verticality of the prefabricated bearing wall are adjusted by the supporting component;

an upper group of supporting components and a lower group of supporting components are adopted, and each group comprises two supporting components; the height of the supporting point of the upper supporting assembly is more than or equal to 2/3 times of the height of the prefabricated bearing wall, the included angle between the supporting mechanism of the upper supporting assembly and the floor slab is 45 degrees, the height of the supporting point of the lower supporting assembly is 1/5-1/4 times of the height of the prefabricated bearing wall, and the included angle between the supporting mechanism of the lower supporting assembly and the floor slab is 45 degrees;

6) sealing bin

As shown in fig. 5-6, four side surfaces of the grouting bin body are blocked to form bin sealing strips 4; the bin sealing strip 4 is formed by curing seat slurry, the height of the bin sealing strip 4 is matched with that of the grouting bin body, and the outer surface of the bin sealing strip 4 is an inwards concave cambered surface; as shown in fig. 4, during the sealing of the bin, firstly, a hose 8 matched with the height of the grouting bin body is placed between the inner side of the forming position of the bin sealing strip 4 and the sleeve 74, and the hose 8 is drawn out after the bin sealing strip 4 is formed;

7) grouting agent

As shown in fig. 5-6, the installation structure of the prefabricated bearing wall includes a protruding reinforcing bar 75 disposed on the installation surface, a sleeve 74 disposed on the lower portion of the prefabricated bearing wall and engaged with the reinforcing bar 75, six leveling blocks 2 disposed between the lower surface of the prefabricated bearing wall and the installation surface to form a grouting cabin located between the prefabricated bearing wall and the installation surface, a sealing structure disposed around the grouting cabin, a sub-cabin strip 3 disposed on the installation surface and dividing the grouting cabin into at least two sub-cabins, and a grouting material layer 6 filled in the grouting cabin and the sleeve 74. The closed structure comprises bin sealing strips 4 arranged on four side faces of the grouting bin body.

Example 3

The prefabricated bearing wall body of this embodiment is prefabricated post, and its cross section is square, and the length of side is 1.2m, for building interior wall body, needs the branch storehouse during the installation, but need not the caulking.

The mounting method of the prefabricated column comprises the following steps:

1) measuring line

As shown in fig. 7, popping up sidelines 10 of the bottom surface of the prefabricated column on the installation surface for installing the prefabricated column, then popping up an X-direction control line 11 which is parallel to any sideline 10 and has a matched length after moving to the outside of the installation surface for 350mm, and popping up a Y-direction control line 12 at two ends of the X-direction control line 11;

2) leveling

As shown in fig. 7-8, five leveling test blocks 2 are adopted to control the flatness of the installation surface, so that a grouting bin body is formed between the bottom surface of the prefabricated column and the installation surface; the four leveling test blocks 2 are respectively positioned at four corners of the mounting surface, the distance between the four leveling test blocks 2 and the sideline 10 is 20mm, and one leveling test block 2 is arranged in the middle of the mounting surface;

3) separate warehouse

As shown in fig. 7, a cross-shaped bin dividing strip 3 is arranged in the mounting surface, and bin dividing control lines 13 are popped out in four Y directions outside the mounting surface; the bin dividing strips 3 are made of elastic materials with the height larger than that of the grouting bin body; the bin dividing strip 3 is made of rubber and plastic sponge, the width of the bin dividing strip is 3cm, and the height of the bin dividing strip is 2cm higher than the height of the grouting bin body; the distance between the bin dividing strips 3 and the reinforcing steel bars 75 on the mounting surface is more than or equal to 4 cm; the length of the sub-bin body is less than or equal to 1 m.

4) Prefabricated column hoisting and mounting in place

As shown in fig. 8, a convex steel bar 75 is arranged on the installation surface, and a sleeve 74 matched with the steel bar 75 is arranged at the lower part of the prefabricated column, so that the steel bar 75 is inserted into the sleeve 74 to be installed in place;

5) installation supporting component

Supporting two side surfaces of the prefabricated column after being installed in place by adopting a supporting assembly, and adjusting the installation direction and the verticality of the prefabricated column by the supporting assembly; two side surfaces adopt an upper group of supporting components and a lower group of supporting components, and each group is one; the height of a supporting point of the upper supporting assembly is more than or equal to 2/3 times of the height of the prefabricated column, the included angle between a supporting mechanism of the upper supporting assembly and the floor slab is 50 degrees, the height of a supporting point of the lower supporting assembly is 1/5-1/4 times of the height of the prefabricated column, and the included angle between a supporting mechanism of the lower supporting assembly and the floor slab is 35 degrees;

6) sealing bin

As shown in fig. 7-8, the side surface of the grouting bin body is blocked to form a bin sealing strip 4; the bin sealing strip 4 is formed by curing seat slurry, the height of the bin sealing strip 4 is matched with that of the grouting bin body, and the outer surface of the bin sealing strip 4 is an inwards concave cambered surface; when the bin is sealed, firstly, a hose 8 matched with the height of the grouting bin body is placed between the inner side of the forming position of the bin sealing strip 4 and the sleeve 74, and the hose 8 is drawn out after the bin sealing strip 4 is formed;

7) grouting agent

As shown in fig. 8, the sleeve 74 has an upper grout outlet 741 and a lower grout hole 742, and when grouting, one grout hole 742 is selected for each sub-cartridge body to be grouted so that the grouting can fill the grouting cartridge body and the sleeve 74.

As shown in fig. 7-8, the mounting structure of the prefabricated column includes a protruding reinforcing bar 75 disposed on the mounting surface, a sleeve 74 disposed on the lower portion of the prefabricated column and engaged with the reinforcing bar 75, five leveling blocks 2 disposed between the lower surface of the prefabricated column and the mounting surface to form a grouting cabin located between the prefabricated column and the mounting surface, a sealing structure disposed around the grouting cabin, a sub-cabin strip 3 disposed on the mounting surface and dividing the grouting cabin into at least two sub-cabins, and a grouting material layer 6 filled in the grouting cabin and the sleeve 74. The closed structure comprises bin sealing strips 4 arranged on four side faces of the grouting bin body.

Example 4

The prefabricated bearing wall body of this embodiment is prefabricated post, and its cross section is square, and the length of side is 0.8m, for building outside wall body, need not the branch storehouse during the installation, but needs the caulking.

The mounting method of the prefabricated column comprises the following steps:

1) measuring line

As shown in fig. 9, popping up sidelines 10 of the bottom surface of the prefabricated column on the installation surface for installing the prefabricated column, then popping up an X-direction control line 11 which is parallel to the sidelines 10 of the bottom of the inner surface and has a length matched with the length after moving 500mm to the outside of the installation surface, and popping up Y-direction control lines 12 at two ends of the X-direction control line 11;

2) leveling

As shown in fig. 9-10, four leveling test blocks 2 are adopted to control the flatness of the installation surface, so that a grouting bin body is formed between the bottom surface of the prefabricated column and the installation surface; the four leveling test blocks 2 are respectively positioned at four corners of the mounting surface, and the distance between the four leveling test blocks and the sideline 10 is 15 mm;

the leveling test block 2 is a gasket assembly, each gasket assembly is formed by overlapping at least two gaskets, and each gasket is a circular steel sheet with the diameter of 20mm and the thickness of 1-5 mm;

3) caulking

As shown in fig. 9-10, caulking strips 5 are arranged on the side surface of the grouting silo body positioned outside the building; the caulking strip 5 is made of an elastic material with the height larger than that of the grouting bin body; the caulking strip 5 is made of rubber and plastic sponge, the width of the caulking strip is 3cm, and the height of the caulking strip is 1cm higher than the height of the grouting bin body.

4) Prefabricated column hoisting and mounting in place

As shown in fig. 10, a protruding steel bar 75 is arranged on the installation surface, and a sleeve 74 matched with the steel bar 75 is arranged at the lower part of the prefabricated column, so that the steel bar 75 is inserted into the sleeve 74 to be installed in place;

5) installation supporting component

The inner surface of the prefabricated column after being installed in place is supported by a supporting component, and the installation direction and the verticality of the prefabricated column are adjusted by the supporting component;

an upper group of supporting components and a lower group of supporting components are adopted, wherein each group is one; the height of a supporting point of the upper supporting assembly is more than or equal to 2/3 times of the height of the prefabricated column, the included angle between a supporting mechanism of the upper supporting assembly and the floor slab is 60 degrees, the height of a supporting point of the lower supporting assembly is 1/5-1/4 times of the height of the prefabricated column, and the included angle between a supporting mechanism of the lower supporting assembly and the floor slab is 30 degrees;

6) sealing bin

As shown in fig. 9-10, three sides of the grouting bin body, on which no caulking strip 5 is arranged, are blocked to form a bin sealing strip 4 connected with the caulking strip 5; the bin sealing strip 4 is formed by curing seat slurry, the height of the bin sealing strip 4 is matched with that of the grouting bin body, and the outer surface of the bin sealing strip 4 is an inwards concave cambered surface; when the bin is sealed, firstly, a hose 8 matched with the height of the grouting bin body is placed between the inner side of the forming position of the bin sealing strip 4 and the sleeve 74, and the hose 8 is drawn out after the bin sealing strip 4 is formed;

8) grouting agent

As shown in fig. 10, the sleeve 74 has an upper grout outlet 741 and a lower grout hole 742, and when grouting, one grout hole 742 is selected for each sub-cartridge body to be grouted so that the grouting can fill the grouting cartridge body and the sleeve 74.

As shown in fig. 9-10, the mounting structure of the prefabricated column includes a protruding reinforcing bar 75 disposed on the mounting surface, a sleeve 74 disposed at the lower portion of the prefabricated column and engaged with the reinforcing bar 75, four leveling blocks 2 disposed between the lower surface of the prefabricated column and the mounting surface to form a grouting cabin located between the prefabricated column and the mounting surface, a sealing structure disposed around the grouting cabin, and a grouting material layer 6 filled in the grouting cabin and the sleeve 74. The closed structure comprises caulking strips 5 arranged on the side surfaces, located outside the building, of the grouting bin body and bin sealing strips 4 arranged on the other three side surfaces.

In the above embodiments 1 to 4, for a building having N total floors, when the prefabricated load-bearing wall is installed on the 1 st floor, the installation surface is a surface which is embedded in the floor slab and formed by the reinforcing steel bars 75 and matches with the size of the lower surface of the prefabricated load-bearing wall; when the prefabricated bearing wall body is arranged on the Mth layer and M is more than or equal to 2 and less than or equal to N, the mounting surface is the upper surface of the M-1 th layer of prefabricated bearing wall body; the steel bars 75 on the upper surface of the prefabricated load-bearing wall body of the 1 st floor to the N-1 st floor can be all straight steel bars matched with the sleeves 74, and can also comprise the straight steel bars and bent steel bars; the steel bars 75 on the upper surface of the prefabricated bearing wall body of the nth floor are bent steel bars; the straight reinforcing bars are used for being matched and connected with the sleeves 74, and the bent reinforcing bars are used for binding the reinforcing bars.

When the prefabricated bearing wall body is a prefabricated component outside a building, the wall structure comprises an inner leaf wallboard 71, and a heat insulation layer 72 and an outer leaf wallboard 73 which are sequentially arranged on the outer surface of the inner leaf wallboard 71, and the caulking strip 5 is positioned below the heat insulation layer 72 so as to play a heat insulation role together with the heat insulation layer 72. When the prefabricated bearing wall is a prefabricated component in the building, the wall structure is only the inner leaf wallboard 71, namely a reinforced concrete structure.

During grouting, grouting materials sequentially flow out of the grouting holes 742 from non-grouting in a full mode and sequentially block the grouting holes 742 in the grouting sequence, then grouting materials sequentially flow out of the grouting holes 741 in the upper portion in a full mode and sequentially block the grouting holes 741 in the grouting sequence, and the grouting holes 742 are blocked after grouting is completed. The plugging adopts a rubber plug 100.

Example 5

The prefabricated non-bearing wall is an external wall of a building, and the installation method comprises the following steps:

1) measuring line

As shown in fig. 11-13, ejecting sidelines 10a of the bottom surface of the prefabricated non-bearing wall on the installation surface for installing the prefabricated non-bearing wall, then ejecting an X-direction control line 11a which is parallel to the sidelines 10a of the bottom of the inner surface and has a length matched with the length after moving 150mm to the outside of the installation surface, and ejecting Y-direction control lines 12a at two ends of the X-direction control line 11 a;

2) leveling

As shown in fig. 11-13, six leveling test blocks 1a are used for controlling the flatness of the installation surface to form a butt seam between the bottom surface of the prefabricated non-bearing wall and the installation surface; the four leveling test blocks 1a are respectively positioned at four corners of the mounting surface and have a distance of 15mm from the sideline 10a, and the other two leveling test blocks are arranged in the middle of the mounting surface.

The leveling test block 1a is a gasket combination body, and each gasket combination body is formed by superposing at least two gaskets; the gasket is a square steel sheet with the side length of 30mm and the thickness of 1-5 mm.

3) Caulking

As shown in fig. 11 to 13, a caulking strip 3a is provided on the side of the butt seam located outside the building, the caulking strip 3a using an elastic material having a height greater than that of the butt seam; the caulking strip 3a is rubber and plastic sponge, the width is 2cm, and the height ratio is 1cm higher than the height of the seam.

4) Setting mortar

As shown in fig. 11-13, according to the leveling height of the leveling test block 1a, a base slurry layer 2a for filling the butt seam is formed on the installation surface by pouring base slurry;

5) hoisting and installing the prefabricated non-bearing wall in place: hoisting the prefabricated non-load-bearing wall on the base slurry layer 2 a;

6) installation supporting component

As shown in fig. 12, the prefabricated non-bearing wall is supported by the supporting component after being installed in place, and the installation direction and the verticality of the prefabricated non-bearing wall are adjusted by the supporting component;

an upper group of supporting components and a lower group of supporting components are adopted, and each group comprises three supporting components; the height of the supporting point of the upper supporting assembly is more than or equal to 2/3 times of the height of the prefabricated non-bearing wall, the included angle between the supporting mechanism of the upper supporting assembly and the floor slab is 60 degrees, the height of the supporting point of the lower supporting assembly is 1/5-1/4 times of the height of the prefabricated non-bearing wall, and the included angle between the supporting mechanism of the lower supporting assembly and the floor slab is 45 degrees;

7) binding cast-in-place node steel bars, building a formwork structure and pouring concrete: and sequentially binding the reinforcing steel bars on two sides of the prefabricated non-bearing wall and the reinforcing steel bars of the adjacent wall body, building a formwork structure and pouring concrete.

As shown in FIGS. 11-13, the installation structure of the prefabricated non-load-bearing wall comprises a leveling block 1a, a mortar layer 2a and a caulking strip 3 a. The number of the leveling test blocks 1a is six, and the leveling test blocks 1a are arranged on the installation surface for installing the prefabricated non-bearing wall and form butt joints between the bottom surface of the prefabricated non-bearing wall and the installation surface; the seat slurry layer 2a comprises seat slurry filled in the butt seam, and the height of the seat slurry layer 2a is matched with the leveling height of the leveling test block 1 a; the caulking strips 3a are provided on the side of the butt seam located outside the building.

Example 6

The prefabricated non-bearing wall is an internal wall of a building, and the installation method comprises the following steps:

1) measuring line

As shown in fig. 14-15, popping up a sideline 10a at the bottom surface of the prefabricated non-bearing wall on a mounting surface for mounting the prefabricated non-bearing wall, then popping up an X-direction control line 11a which is parallel to the bottom sideline 10a of the side surface with a larger area and has a length matched with the bottom sideline after moving 500mm to the outside of the mounting surface, and popping up Y-direction control lines 12a at two ends of the X-direction control line 11 a;

2) leveling

As shown in fig. 14-15, six leveling test blocks 1a are adopted to control the flatness of the installation surface, and a butt seam between the bottom surface of the prefabricated non-bearing wall and the installation surface is formed; the four leveling test blocks 1a are respectively positioned at four corners of the mounting surface and have a distance of 25mm from the sideline 10a, and the other two leveling test blocks are arranged in the middle of the mounting surface.

The leveling test block 1a is a gasket combination body, and each gasket combination body is formed by superposing at least two gaskets; the gasket is a circular steel sheet with the diameter of 30mm and the thickness of 1-5 mm.

3) Setting mortar

As shown in fig. 14-15, according to the leveling height of the leveling test block 1a, a base slurry layer 2a for filling the butt seam is formed on the installation surface by pouring base slurry;

4) hoisting and installing the prefabricated non-bearing wall in place: hoisting the prefabricated non-load-bearing wall on the base slurry layer 2 a;

5) installation supporting component

The prefabricated non-bearing wall is supported by the supporting component after being installed in place, and the installation direction and the verticality of the prefabricated non-bearing wall are adjusted by the supporting component;

an upper group of supporting components and a lower group of supporting components are adopted, and each group comprises three supporting components; the height of the supporting point of the upper supporting assembly is more than or equal to 2/3 times of the height of the prefabricated non-bearing wall, the included angle between the supporting mechanism of the upper supporting assembly and the floor slab is 45 degrees, the height of the supporting point of the lower supporting assembly is 1/5-1/4 times of the height of the prefabricated non-bearing wall, and the included angle between the supporting mechanism of the lower supporting assembly and the floor slab is 30 degrees;

As shown in fig. 14 to 15, the installation structure of the prefabricated non-load-bearing wall comprises a leveling test block 1a and a base mortar layer 2 a. The number of the leveling test blocks 1a is six, and the leveling test blocks 1a are arranged on the installation surface for installing the prefabricated non-bearing wall and form butt joints between the bottom surface of the prefabricated non-bearing wall and the installation surface; the seat slurry layer 2a comprises seat slurry filled in the butt seam, and the height of the seat slurry layer 2a is matched with the leveling height of the leveling test block 1 a.

In the above embodiments 5-6, when the prefabricated non-bearing wall is a prefabricated exterior part of a building, the wall structure includes the inner leaf wall panel 71a, and the insulating layer 72a and the outer leaf wall panel 73a sequentially disposed on the outer surface of the inner leaf wall panel 71a, and the caulking strips 3a are disposed below the insulating layer 72a, so as to perform the insulating function together with the insulating layer 72 a. When the prefabricated non-bearing wall is a prefabricated component in the building, the wall structure is only the inner leaf wall plate 71a, namely, a reinforced concrete structure.

The support assembly adopted in the above embodiments 1 to 6 includes two U-shaped clamp seats 92 respectively provided on the surface of the prefabricated load-bearing wall and the surface of the floor slab, and a support mechanism having two ends respectively hinged to the two U-shaped clamp seats 92, and the support mechanism has a telescopic structure; preferably, the supporting mechanism is provided with an outer sleeve 93, the number of the telescopic structures is two, the two telescopic structures are respectively arranged at two ends of the outer sleeve 93, each telescopic structure comprises a positive and negative nut 94 and a positive and negative adjusting screw rod 95 which are in threaded connection, the positive and negative nut 94 is connected with the outer sleeve 93, one end of the positive and negative adjusting screw rod 95 penetrates through the positive and negative nut 94 and then extends into the outer sleeve 93, and the other end of the positive and negative adjusting screw rod is connected with a corresponding U-shaped clamping seat; further preferably, a handle 96 is provided on the outer sleeve 93; the U-shaped clamping seat 92 is connected with the wall body through a screw.

Each gasket combination body can be formed by stacking gaskets with the same thickness or stacking gaskets with different thicknesses.

The grouting material used in the above embodiments 1 to 6 is CGMm-VI grouting material of Beijing SidajiamaoSci Production Co. The base slurry used in the above examples 1 to 6 was a CGM JM-Z base slurry of Beijing SidajiamaoSci technology development Co.

Example 7

As shown in fig. 16, the cast-in-place node of this embodiment is T-shaped, the prefabricated wall body connected to the cast-in-place node includes two horizontal prefabricated external walls 1b and one vertical prefabricated internal wall 2b, and the prefabricated external wall 1b includes an inner leaf wall panel 10b, an insulating layer 11b and an outer leaf wall panel 12b which are sequentially connected from inside to outside. The T-shaped cast-in-place node formwork structure comprises two L-shaped inner formworks, the shapes of which are matched with the shapes of the inner sides of the nodes, an outer formwork and a plurality of groups of fastening component fastening components, wherein the outer formwork is arranged between two prefabricated outer walls 1 b; the fastening assembly comprises an L-shaped first rod body 51b arranged outside the inner formwork, a second rod body 52b arranged outside the outer formwork, a first connecting mechanism connected with the first rod body 51b, the prefabricated outer wall 1b and the second rod body 52b, and a second connecting mechanism connected with the two first rod bodies 51 b.

The distance between two adjacent fastening components is 0.3-1 m.

And waterproof layers 8b are arranged on the butt joint surface of the inner template and the prefabricated outer wall 1b and the butt joint surface of the inner template and the prefabricated inner wall 2 b.

The first connecting mechanism comprises a first pair of pull screws 61b and buckles 63b, wherein the first pair of pull screws 61b sequentially penetrate through the first rod body 51b, the prefabricated outer wall 1b and the second rod body 52 b;

the second connecting mechanism comprises a second pair of pull screws 62b penetrating through the two first rod bodies 51b and the two inner templates and buckles 63b arranged at two ends of the second pair of pull screws 62 b; a sleeve 622b matched with the width of the node is sleeved outside the second pair of pull screws 62 b; and a sealing ring 621b is arranged on the contact surface of the second pair of pulling screws 62b and the inner template.

The outer template comprises XPS heat preservation plates 41b arranged at the butt joint of the heat preservation layers 11b of the two prefabricated outer walls 1b and waterproof plates 42b arranged at the butt joint of the outer page wall plates 12b of the two prefabricated outer walls 1 b.

The inner template comprises two sub templates 31b which are vertical to each other and an elastic sealing strip 32b arranged at the butt joint of the two sub templates 31 b; the sub-template 31b is a wood plate with the thickness of 3-8 cm; the elastic sealing strip 32b is a rubber-plastic sponge strip matched with the thickness of the sub-template 31 b.

The novel bar-type formwork also comprises vertical cage bones arranged between the first bar body 51b and the inner formwork, wherein the vertical cage bones are a plurality of battens 7b with the interval of 5-15cm and the width of 3-5 cm.

Example 8

As shown in fig. 17, the cast-in-place node of this embodiment is L-shaped, the prefabricated wall body connected to the cast-in-place node includes an L-shaped prefabricated PCF plate 2c and prefabricated exterior walls 1c at two ends thereof, the prefabricated exterior wall 1c includes an inner leaf wall plate 10c, an insulating layer 11c and an outer leaf wall plate 12c which are sequentially connected from inside to outside, the prefabricated PCF plate 2c includes an insulating layer 11c and an outer leaf wall plate 12c which are sequentially connected from inside to outside, and the prefabricated PCF plate 2c is located outside the node. The L-shaped cast-in-place node formwork structure comprises an L-shaped inner formwork matched with the shape of the inner side of a node, an outer formwork arranged between adjacent prefabricated walls and a plurality of groups of fastening assemblies distributed from top to bottom; the fastening assembly comprises an L-shaped first rod body 51c arranged outside the inner template, an L-shaped second rod body 52c arranged outside the prefabricated PCF plate 2c and a connecting mechanism for connecting the first rod body 51c, the prefabricated outer wall 1c and the second rod body 52 c.

The distance between two adjacent fastening components is 0.3-1 m.

The connecting mechanism comprises a counter-pull screw 61c sequentially passing through the first rod body 51c, the prefabricated outer wall 1c and the second rod body 52c and buckles 62c arranged at two ends of the counter-pull screw 61 c.

The outer template comprises an XPS heat insulation plate 41c arranged at the butt joint of the heat insulation layers 11c of the adjacent walls and a waterproof plate 42c arranged at the butt joint of the outer page wall plates 12c of the adjacent walls.

The inner template comprises two sub templates 31c which are vertical to each other and an elastic sealing strip 32c arranged at the butt joint of the two sub templates 31 c; the sub-template 31c is a wood plate with the thickness of 3-8 cm; the elastic sealing strip 32c is a rubber-plastic sponge strip matched with the thickness of the sub-template 31 c.

The novel bar-type formwork structure is characterized by further comprising a vertical cage rib arranged between the first bar body 51c and the inner formwork, wherein the vertical cage rib is formed by a plurality of battens 7c with the interval of 5-15cm and the width of 3-5 cm.

And a waterproof layer 8c is arranged on the butt joint surface of the inner template and the prefabricated outer wall 1 c.

The prefabricated exterior walls described in examples 7-8 are preferably prefabricated load-bearing walls as described in example 1 or prefabricated non-load-bearing walls as described in example 5. The waterproof layer is sprayed polyurethane waterproof paint, when the waterproof layer is sprayed, firstly the waterproof layer is sprayed on the surface of the prefabricated outer wall, the inner template is installed before solidification, and the polyurethane waterproof paint is fully filled in the butt joint surface of the inner template and the prefabricated outer wall. The sleeve is preferably a PVC pipe.

The XPS thermal insulation board 41c used in examples 7 to 8 is an extruded polystyrene thermal insulation board, which is a rigid foam board manufactured by using a polystyrene resin as a raw material, adding other raw and auxiliary materials and a polymer, heating and mixing the raw and auxiliary materials, injecting a catalyst, and then performing extrusion molding and extrusion molding, and has a perfect closed-cell honeycomb structure, so that the XPS thermal insulation board has extremely low water absorption, low thermal conductivity, high pressure resistance and aging resistance.

Example 9

As shown in fig. 18-20, a prefabricated column 1d is arranged below the node, prefabricated superposed beams 2d connected with the prefabricated column 1d and prefabricated superposed floors 3d connected with the adjacent prefabricated superposed beams 2d are arranged on four side surfaces of the node, and the formwork structure of the cast-in-place node comprises an outer formwork, a connecting component 5d for connecting two outer formworks on opposite side surfaces of the node, a steel bar fixer 7d and a waterproof structure. The outer formworks include eight first outer formworks 41 d.

The first outer template 41d comprises a first sub-template 411d matched with the side surface of the prefabricated superposed beam 2d and a second sub-template 412d matched with the side surface of the node, the first sub-template 411d and the second sub-template 412d are perpendicular to each other, and every two first outer templates 41d are arranged between two prefabricated superposed beams 2d outside the adjacent side surfaces of the node and are connected through the second sub-template 412d in a welding mode; the upper surface of the first external template 41d is matched with the lower surface of the prefabricated composite floor slab 3 d; the height of the matching surface between the lower part of the first external template 41d and the prefabricated column 1d is 5 cm.

The waterproof structure comprises a waterproof layer arranged on the matching surface of the first outer template 41d and the prefabricated column 1d and/or the prefabricated superposed beam 2d and an elastic sealing strip 6d arranged between the upper surface of the first outer template 41d and the lower surface of the prefabricated superposed beam 2d, wherein the elastic sealing strip 6d is a rubber-plastic sponge strip.

The prefabricated composite floor slab 3d is provided with a turning surface 31d matched with the node turning part.

Reinforcing bar fixer 7d is "back" font, and its size matches with node cross section size, and is equipped with the through-hole that supplies prefabricated post 1d reinforcing bar to pass.

The connecting assembly 5d comprises a counter-pulling screw 51d and a buckle 52d, wherein the counter-pulling screw 51d sequentially penetrates through the second sub-template 412d, the node and the corresponding second sub-template 412d or second outer template 42d, and the buckle is used for fastening two ends of the counter-pulling screw 51 d; the formwork structure comprises at least two groups of connecting components 5d distributed from top to bottom. The first external template 41d includes a bottom plate 43d, a peripheral vertical plate 44d, and a reinforcing rib 45d disposed on the bottom plate 43d and connected to the vertical plate 44d disposed oppositely, and each group of connecting assemblies 5d is disposed between two reinforcing ribs 45d and the fastener 52d is located outside the reinforcing rib 45 d.

Example 10

As shown in fig. 21, a prefabricated column 1d is arranged below a node, three side surfaces of the node are provided with a prefabricated superposed beam 2d connected with the prefabricated column 1d and a prefabricated superposed floor slab 3d connected with an adjacent prefabricated superposed beam 2d, and a formwork structure of the cast-in-place node comprises an outer formwork, a connecting assembly 5d for connecting the outer formworks on the opposite side surfaces of the node, a waterproof structure and a steel bar fixer 7 d; the outer formworks include four first outer formworks 41d and one second outer formwork 42 d.

The first outer template 41d comprises a first sub-template 411d matched with the side surface of the prefabricated superposed beam 2d and a second sub-template 412d matched with the side surface of the node, the first sub-template 411d and the second sub-template 412d are perpendicular to each other, and every two first outer templates 41d are arranged between two prefabricated superposed beams 2d outside the adjacent side surfaces of the node and welded through the second sub-template 412 d; the upper surface of the first external template 41d is matched with the lower surface of the prefabricated composite floor slab 3 d; the height of the matching surface between the lower part of the first external template 41d and the prefabricated column 1d is 5 cm.

The second outer template 42d is arranged outside the side surface of the node without the prefabricated superposed beam 2 d; the mounting height of the upper surface of the second outer template 42d is more than or equal to the mounting height of the upper surface of the prefabricated composite floor slab 3 d; the height of the matching surface between the lower part of the second outer template 42d and the prefabricated column 1d is 5 cm; the length of the second outer template 42d is more than or equal to the width of the side surface of the node.

The waterproof structure comprises a waterproof layer arranged on the matching surface of the first outer template 41d and the prefabricated column 1d and/or the prefabricated superposed beam 2d, a waterproof layer arranged on the matching surface of the second outer template 42d and the prefabricated column 1d and an elastic sealing strip 6d arranged between the upper surface of the first outer template 41d and the lower surface of the prefabricated superposed beam 2d, wherein the elastic sealing strip 6d is a rubber-plastic sponge strip.

The connecting assembly 5d comprises a counter-pulling screw 51d and a buckle 52d, wherein the counter-pulling screw 51d sequentially penetrates through the second sub-template 412d, the node and the corresponding second sub-template 412d or second outer template 42d, and the buckle is used for fastening two ends of the counter-pulling screw 51 d; the formwork structure comprises at least two groups of connecting components 5d distributed from top to bottom. The first outer die plate 41d and the second outer die plate 42d include a bottom plate 43d, a peripheral vertical plate 44d, and a reinforcing rib 45d disposed on the bottom plate 43d and connected to the vertical plate 44d disposed oppositely, and each group of connecting assemblies 5d is disposed between two reinforcing ribs 45d and the fastener 52d is located outside the reinforcing rib 45 d.

Example 11

As shown in fig. 22, compared with embodiment 10, in the cast-in-place node formwork structure of this embodiment, on the basis of embodiment 10, the second outer formwork 42d is formed by splicing two first outer formworks 41d, so that the number of the outer formworks is reduced, and management is facilitated.

Example 12

Compared with the embodiment 10, the cast-in-place node formwork structure of the embodiment has the following differences: as shown in fig. 23, there are two first outer templates 41d, two second outer templates 42d, and the two second outer templates 42d are welded together. When the welding is as an organic whole, not only prevent that seam crossing from leaking thick liquid, the equipment management of being convenient for, coupling assembling 5 d's connected state forms symmetrical structure moreover, and the atress is more even.

The preformed column described in examples 9-12 is preferably the preformed column of example 3 or 4. The waterproof layer is sprayed polyurethane waterproof paint, when the waterproof layer is sprayed, firstly, the surface of the prefabricated composite beam or the prefabricated column is sprayed, and the outer template is installed before solidification, so that the polyurethane waterproof paint is fully filled in the butt joint surface of the outer template and the prefabricated composite beam or the butt joint surface of the outer template and the prefabricated column. A sleeve, preferably a PVC pipe, is provided on the counter-pulling screw 51d in the node.

The polyurethane waterproof paint is a single-component polyurethane waterproof paint which is prepared by mixing a prepolymer containing isocyanate groups, which is prepared by carrying out addition polymerization reaction on isocyanate, polyether and the like, and a catalyst, an anhydrous auxiliary agent, an anhydrous filler, a solvent and the like.

Example 13

Compared with the embodiment 10, the cast-in-place node formwork structure of the embodiment has the following differences: as shown in fig. 24, the length of the second outer form 42d < the width of the side of the node, and a wooden form 8d is provided on the side of the second outer form to prevent leakage of grout. The wooden mold plate 8d is connected to the first outer mold plate 41d on the opposite side of the node by the connecting member 5 d. The joint of the wood formwork 8d and the second outer formwork 42d is provided with waterproof glue, the waterproof glue is polyurethane glue, and the polyurethane glue is glue containing urethane groups and isocyanate groups in molecular chains.

The contents of the present invention have been explained above. Those skilled in the art will be able to implement the invention based on these teachings. All other embodiments, which can be derived by a person skilled in the art from the above description without inventive step, shall fall within the scope of protection of the present invention.

Claims

1. The installation method of the prefabricated bearing wall body comprises the following steps:

1) and (3) measurement and paying-off: popping up sidelines (10) of the bottom surface of the prefabricated bearing wall body on an installation surface for installing the prefabricated bearing wall body, then popping up an X-direction control line (11) which is parallel to one sideline (10) and is matched with the length after moving towards the outside of the installation surface, and popping up Y-direction control lines (12) at two ends of the X-direction control line (11);

2) leveling: the flatness of the mounting surface is controlled by adopting at least two leveling test blocks (2), so that a grouting bin body is formed between the bottom surface of the prefabricated bearing wall body and the mounting surface;

3) hoisting and installing the prefabricated bearing wall in place: the prefabricated load-bearing wall is characterized in that a protruding steel bar (75) is arranged on the mounting surface, and a sleeve (74) matched with the steel bar (75) is arranged at the lower part of the prefabricated load-bearing wall, so that the steel bar (75) is inserted into the sleeve (74) to be mounted in place;

5) sealing a bin: plugging the side surface of the grouting bin body to form a bin sealing strip (4);

6) grouting: the sleeve (74) is provided with an upper grout outlet (741) and a lower grout hole (742), and when grouting, one grout hole (742) is selected for grouting, so that grouting materials are filled in the grouting bin body and the sleeve (74).

2. A method of installing a prefabricated load bearing wall according to claim 1, wherein: the leveling test block (2) is a gasket combination, and each gasket combination is formed by overlapping at least two gaskets; preferably, the gasket is a circular steel sheet with the diameter of 20-40mm and the thickness of 1-5 mm.

3. A method of installing a prefabricated load bearing wall according to claim 2, wherein: the number of the leveling test blocks (2) is at least four, the four leveling test blocks (2) are respectively positioned at four corners of the mounting surface, and the distance between the four leveling test blocks and the sideline (10) is 15-25 mm; and/or when the length of the prefabricated bearing wall body is more than or equal to 1m, the middle part of the installation surface is provided with the leveling test block (2).

4. A method of installing a prefabricated load bearing wall according to claim 1, wherein: the bin sealing strip (4) is formed by curing base slurry, and the height of the bin sealing strip (4) is matched with the height of the grouting bin body; and/or the outer surface of the bin sealing strip (4) is an inwards concave cambered surface.

5. A method of installing a prefabricated load bearing wall according to claim 1, wherein: when prefabricated bearing wall is the outside wall body of building, still include and carry out the caulking before prefabricated bearing wall hoists: caulking strips (5) are arranged on the side surfaces of the grouting bin body, which are positioned outside the building, and when the bin is sealed, the other three side surfaces of the grouting bin body are sealed to form bin sealing strips (4) connected with the caulking strips (5); preferably, the caulking strip (5) is made of an elastic material with the height larger than that of the grouting cabin body; further preferably, the caulking strip (5) is rubber and plastic sponge, the width of the caulking strip is 3-5cm, and the height of the caulking strip is 0.5-2cm higher than the height of the grouting bin body.

6. A method of installing a prefabricated load bearing wall according to claim 1, wherein: still include the branch storehouse: arranging bin dividing strips (3) in the mounting surface to form sub-bin bodies, popping out bin dividing control lines (13), and hoisting and mounting prefabricated bearing walls in place after bin dividing; preferably, the bin dividing strip (3) is made of an elastic material with the height larger than that of the grouting bin body or is formed by curing seat slurry; further preferably, the bin dividing strip (3) is made of rubber and plastic sponge, the width of the bin dividing strip is 3-5cm, and the height of the bin dividing strip is 0.5-2cm higher than the height of the grouting bin body.

7. A method of installing a prefabricated load bearing wall according to claim 6, wherein: the distance between the bin dividing strips (3) and the steel bars (75) on the mounting surface is more than or equal to 4 cm; the length of the sub-bin body is less than or equal to 1 m.

8. A method of installing a prefabricated load bearing wall according to claim 1, wherein: the supporting assembly comprises two U-shaped clamping seats (92) which are respectively arranged on the surface of the prefabricated bearing wall body and the surface of the floor slab, and a supporting mechanism of which two ends are respectively hinged with the two U-shaped clamping seats (92), and the supporting mechanism is provided with a telescopic structure; preferably, the supporting mechanism is provided with an outer sleeve (93), the number of the telescopic structures is two, the two telescopic structures are respectively arranged at two ends of the outer sleeve (93), each telescopic structure comprises a positive and negative nut (94) and a positive and negative adjusting screw rod (95) which are in threaded connection, the positive and negative nut (94) is connected with the outer sleeve (93), one end of the positive and negative adjusting screw rod (95) penetrates through the positive and negative nut (94) and then extends into the outer sleeve (93), and the other end of the positive and negative adjusting screw rod is connected with a corresponding U-shaped clamping seat; further preferably, a handle (96) is provided on the outer sleeve (93).

9. A method of installing a prefabricated load bearing wall according to claim 8, wherein: an upper group of supporting components and a lower group of supporting components are adopted; preferably, the height of the supporting point of the upper supporting assembly is more than or equal to 2/3 times of the height of the prefabricated bearing wall, the included angle between the supporting mechanism of the upper supporting assembly and the floor slab is 45-60 degrees, the height of the supporting point of the lower supporting assembly is 1/5-1/4 times of the height of the prefabricated bearing wall, and the included angle between the supporting mechanism of the lower supporting assembly and the floor slab is 30-45 degrees.

10. A method of installing a prefabricated load bearing wall according to claim 1, wherein: when the bin is sealed, firstly, a positioning part matched with the height of the grouting bin body is placed between the inner side of the forming position of the bin sealing strip (4) and the sleeve (74), and the positioning part is pulled out after the bin sealing strip (4) is formed; preferably, the positioning member has elasticity; more preferably, the positioning member is a hose (8).