CN114908899A - Wall constructional column formwork-free construction method based on BIM technology - Google Patents

Wall constructional column formwork-free construction method based on BIM technology Download PDF

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Publication number
CN114908899A
CN114908899A CN202210672195.9A CN202210672195A CN114908899A CN 114908899 A CN114908899 A CN 114908899A CN 202210672195 A CN202210672195 A CN 202210672195A CN 114908899 A CN114908899 A CN 114908899A
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CN
China
Prior art keywords
shaped concrete
concrete membrane
membrane shell
shells
bim technology
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CN202210672195.9A
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Chinese (zh)
Inventor
陈坚河
张富森
成关锋
欧阳煜东
董超男
刘凯能
林逸恒
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Guangdong Fourth Construction Engineering Co ltd
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Guangdong Fourth Construction Engineering Co ltd
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Priority to CN202210672195.9A priority Critical patent/CN114908899A/en
Publication of CN114908899A publication Critical patent/CN114908899A/en
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    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B2/00Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
    • E04B2/02Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls built-up from layers of building elements
    • E04B2/14Walls having cavities in, but not between, the elements, i.e. each cavity being enclosed by at least four sides forming part of one single element
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B2/00Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
    • E04B2/02Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls built-up from layers of building elements
    • E04B2/14Walls having cavities in, but not between, the elements, i.e. each cavity being enclosed by at least four sides forming part of one single element
    • E04B2/16Walls having cavities in, but not between, the elements, i.e. each cavity being enclosed by at least four sides forming part of one single element using elements having specially-designed means for stabilising the position
    • E04B2/18Walls having cavities in, but not between, the elements, i.e. each cavity being enclosed by at least four sides forming part of one single element using elements having specially-designed means for stabilising the position by interlocking of projections or inserts with indentations, e.g. of tongues, grooves, dovetails
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B2/00Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
    • E04B2/02Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls built-up from layers of building elements
    • E04B2/14Walls having cavities in, but not between, the elements, i.e. each cavity being enclosed by at least four sides forming part of one single element
    • E04B2/24Walls having cavities in, but not between, the elements, i.e. each cavity being enclosed by at least four sides forming part of one single element the walls being characterised by fillings in some of the cavities forming load-bearing pillars or beams
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04CSTRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C1/00Building elements of block or other shape for the construction of parts of buildings
    • E04C1/39Building elements of block or other shape for the construction of parts of buildings characterised by special adaptations, e.g. serving for locating conduits, for forming soffits, cornices, or shelves, for fixing wall-plates or door-frames, for claustra
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B2/00Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
    • E04B2/02Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls built-up from layers of building elements
    • E04B2002/0202Details of connections
    • E04B2002/0232Undercut connections, e.g. using undercut tongues and grooves
    • E04B2002/0239Round dovetails

Abstract

The application relates to the technical field of building construction, in particular to a wall constructional column formwork-free construction method based on a BIM technology, which comprises the following steps: s1, modeling design is carried out by utilizing a BIM technology; s2, prefabricating a U-shaped concrete membrane shell; s3, early preparation: gradually arranging the approach of materials and the approach of mechanical equipment; s4, constructional column construction: binding a reinforcement cage at the designed position of the floor plate; assembling the U-shaped concrete membrane shells from bottom to top along the reinforcement cage, and synchronously building the wall body on two sides of the U-shaped concrete membrane shells; and carrying out concrete pouring once every two layers of U-shaped concrete membrane shells so as to gradually pour the concrete to form the required constructional column along with the assembling rhythm of the U-shaped concrete membrane shells. This application assembles and forms the chamber of pouring of constructional column through a plurality of U type concrete membrane shells, need not formwork and form removal, can save manual work and material cost, can shorten the time limit for a project simultaneously.

Description

Wall constructional column formwork-free construction method based on BIM technology
Technical Field
The application relates to the technical field of building construction, in particular to a wall constructional column formwork-free construction method based on a BIM technology.
Background
At present, most of internal and external walls of domestic buildings adopt autoclaved aerated concrete blocks, but the aerated blocks have poor earthquake resistance and loose density, so that the wall body design comprehensively popularizes wall body constructional columns in order to enable the wall body to meet the earthquake resistance requirement.
The tradition way of constructional column is reservation horse tooth raft when building a wall, then twines the steel reinforcement cage between the horse tooth who reserves is rubbed with the hands, and erects the wooden mould in the steel reinforcement cage periphery, pours concrete toward the mould incasement again to form required constructional column, thereby reach the whole firm effect of wall body.
However, the method is complicated in construction when bricklayers build walls, and also needs woodworkers to support and remove the formwork, so that the labor and material investment cost is high, and the construction period is influenced. Therefore, further improvements can be made.
Disclosure of Invention
In order to save labor and material cost and shorten the construction period, the application provides a wall constructional column formwork-free construction method based on the BIM technology.
The application provides a wall body constructional column formwork-free construction method based on BIM technique adopts following technical scheme:
a wall constructional column formwork-free construction method based on a BIM technology comprises the following steps: s1, modeling and designing by using a BIM technology: BIM modeling is carried out by utilizing a primary design drawing, and the constructional columns in different positions, different shapes and different sizes are independently distinguished and coded according to a CAD drawing; s2, prefabricating a U-shaped concrete membrane shell: according to the constructional columns in the BIM design, customizing the required U-shaped concrete membrane shells to manufacturers according to the required types and the required number; s3, early preparation: gradually arranging the approach of materials and the approach of mechanical equipment; s4, constructional column construction: binding a reinforcement cage at the designed position of the floor plate; assembling the U-shaped concrete membrane shells from bottom to top along the reinforcement cage, and synchronously building the wall body on two sides of the U-shaped concrete membrane shells; and carrying out concrete pouring once every two layers of U-shaped concrete membrane shells so as to gradually pour the concrete to form the required constructional column along with the assembling rhythm of the U-shaped concrete membrane shells.
Through adopting above-mentioned technical scheme, assemble and form the chamber of pouring of constructional column through a plurality of U type concrete membrane shells, need not formwork and form removal, can save manual work and material cost, can shorten the time limit for a project simultaneously.
Optionally, in step S4, the types of the U-shaped concrete membrane shells include a long U-shaped concrete membrane shell and a short U-shaped concrete membrane shell, the long U-shaped concrete membrane shell and the short U-shaped concrete membrane shell are sequentially spliced in a staggered manner from bottom to top, and the long U-shaped concrete membrane shell and the short U-shaped concrete membrane shell are arranged in a center.
By adopting the technical scheme, after the wall body is built along the U-shaped concrete membrane shell, the wall body and the U-shaped concrete membrane shell can be connected in a tooth rubbing mode, and the connection strength between the wall body and the constructional column can be improved.
Optionally, the middle position of the bottom of each of the two sides of the opening of the U-shaped concrete membrane shell is provided with a retraction sliding groove extending vertically, a docking insertion rod is slidably arranged in the retraction sliding groove, and the docking insertion rod can be fully retracted into the retraction sliding groove; and the middle positions of the tops of two sides of the opening of each U-shaped concrete membrane shell are provided with butt joint slots extending along the vertical direction, and the butt joint slots are used for enabling butt joint insertion rods on adjacent U-shaped concrete membrane shells to be in sliding insertion connection.
By adopting the technical scheme, in the process of splicing the U-shaped concrete membrane shells, a worker aligns and slidingly inserts the butt joint inserted rod in the U-shaped concrete membrane shell of the previous layer into the butt joint slot of the U-shaped concrete membrane shell of the next layer, so that the U-shaped concrete membrane shells of the upper layer and the lower layer can be quickly centered, and the centering splicing work efficiency of the U-shaped concrete membrane shells can be improved.
Optionally, the top of each of the two sides of the opening of each U-shaped concrete membrane shell is provided with a guide slide rail, the bottom of each of the two sides of the opening of each U-shaped concrete membrane shell is provided with a guide slide groove, and the guide slide grooves are used for the guide slide rails on the U-shaped concrete membrane shell on the previous layer to be inserted and connected in a sliding manner; and after the adjacent two U-shaped concrete membrane shells are spliced, building interfaces for concrete building are formed on two sides of the guide sliding rail.
By adopting the technical scheme, in the splicing process, a worker enables the opening of the U-shaped concrete membrane shell on the upper layer to face the reinforcement cage, the guide chute of the U-shaped concrete membrane shell on the upper layer is aligned to the guide slide rail inserted into the U-shaped concrete membrane shell on the lower layer, and finally concrete is filled in the building interface to bond and fix the two adjacent U-shaped concrete membrane shells so as to complete the splicing work of the U-shaped concrete membrane shells. Due to the fact that the U-shaped concrete membrane shells are spliced in a sliding insertion mode, workers can complete construction work of the constructional column conveniently. Meanwhile, when the butt joint inserted bar in the upper layer of U-shaped concrete membrane shell moves to the position aligned with the lower layer of U-shaped concrete membrane shell along with the U-shaped concrete membrane shell, the butt joint inserted bar in the upper layer of U-shaped concrete membrane shell can be automatically inserted into the butt joint slot in the lower layer of U-shaped concrete membrane shell in a sliding manner, and workers can further complete the centering and splicing work of the U-shaped concrete membrane shells.
Optionally, a pre-ejection spring is further installed in the retraction chute, and the pre-ejection spring is used for ejecting and inserting the head of the butt-joint insertion rod into the butt-joint insertion slot.
Through adopting above-mentioned technical scheme, owing to be provided with and push up the spring in advance, can improve the butt joint inserted bar to inserting the dynamics, make the butt joint inserted bar be difficult for appearing the card situation of dying.
Optionally, the head of the butt joint inserted bar is embedded with a ball in a rolling manner.
By adopting the technical scheme, in the process that the U-shaped concrete film shell on the upper layer is spliced on the U-shaped concrete film shell on the lower layer in a sliding splicing mode, the pre-jacking spring jacks the head of the butt-joint inserted rod outwards to butt against the U-shaped concrete film shell on the lower layer, and the head of the butt-joint inserted rod is embedded with the ball in a rolling mode, so that rolling friction can be formed between the butt-joint inserted rod and the U-shaped concrete film shell, and workers can push the U-shaped concrete film shell on the upper layer to move and splice.
Optionally, two pairs of connecting pieces are installed in the U-shaped concrete membrane shell, the two pairs of connecting pieces are arranged at intervals along the horizontal direction, and two connecting pieces in the same pair of connecting pieces are respectively and fixedly installed on two inner side surfaces of the opening of the U-shaped concrete membrane shell; two opposite pull rods are installed in the U-shaped concrete membrane shell, the two opposite pull rods are installed on the two pairs of connecting pieces respectively, and two ends of each opposite pull rod are detachably connected to two connecting pieces in the corresponding pair of connecting pieces respectively.
Through adopting above-mentioned technical scheme, accomplish the concatenation back when U type concrete membrane shell, the workman will install in U type concrete membrane shell to drawing the jar to supply the steel reinforcement cage to carry out the ligature fixed, make the steel reinforcement cage be difficult for taking place bending deformation at the in-process of concreting, and then can improve the whole support strength who pours the constructional column after the shaping. Meanwhile, the connecting strength of the two sides of the opening of the U-shaped concrete membrane shell can be further improved by the opposite pull rods, so that the two sides of the opening of the U-shaped concrete membrane shell are not easy to deform in the concrete pouring process to influence subsequent decoration work.
Optionally, the opposite pull rod is a double-thread screw, and the thread directions of the two ends of the opposite pull rod are opposite; the connecting pieces comprise adjusting rods hinged to the U-shaped concrete membrane shells and adjusting screw cylinders hinged to one ends, far away from the U-shaped concrete membrane shells, of the adjusting rods, and the adjusting screw cylinders are used for connecting the counter pull rods in a threaded mode.
By adopting the technical scheme, after the U-shaped concrete membrane shell is spliced, the two ends of the counter-pull rod are respectively in threaded connection with the two adjusting screw rods in the corresponding pair of connecting pieces by a worker, and the counter-pull rod is adjusted by rotating, so that the counter-pull rod drives the adjusting screw cylinders at the two tensioned sides and the adjusting rod to tension the two sides of the opening of the U-shaped concrete membrane shell.
Optionally, vertically arranged installation inserted rods are fixed at the bottoms of the two ends of the opposite pull rod; correspondingly, the connecting piece comprises an installation inserting cylinder vertically fixed on the U-shaped concrete membrane shell, and the installation inserting cylinder is used for slidably inserting the installation inserting rod.
By adopting the technical scheme, after the U-shaped concrete membrane shell is spliced, a worker aligns and slidingly inserts the installation insertion rod in the opposite pull rod into the installation insertion cylinder, so that the opposite pull rod oppositely pulls two sides of the opening of the U-shaped concrete membrane shell.
Optionally, the two ends of the counter pull rod are both connected with locking nuts in a threaded manner, and the two locking nuts are used for respectively locking the two ends of the counter pull rod to the two adjusting screw cylinders.
Through adopting above-mentioned technical scheme, owing to be provided with lock nut, can further improve the stability of being connected between tie rod and the regulation spiral shell section of thick bamboo, make and be difficult for taking place relatively not hard up between tie rod and the regulation spiral shell section of thick bamboo, and then can improve the tie rod to the stability of drawing of U type concrete membrane shell opening both sides.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the plurality of U-shaped concrete membrane shells are assembled to form the pouring cavity of the constructional column, formwork support and formwork removal are not needed, labor and material costs can be saved, and the construction period can be shortened;
2. in the process of splicing the U-shaped concrete membrane shells, workers align and slidingly splice the butt-joint inserted rods in the U-shaped concrete membrane shells on the upper layer into the butt-joint slots of the U-shaped concrete membrane shells on the lower layer, so that the U-shaped concrete membrane shells on the upper layer and the lower layer can be quickly centered, and the centering and splicing work efficiency of the U-shaped concrete membrane shells can be improved;
3. in the splicing process, a worker faces the opening of the U-shaped concrete membrane shell on the upper layer to the reinforcement cage, simultaneously aligns and inserts the guide chute of the U-shaped concrete membrane shell on the upper layer to the guide slide rail of the U-shaped concrete membrane shell on the lower layer, and finally fills concrete in the building interface to bond and fix two adjacent U-shaped concrete membrane shells so as to complete the splicing work of the U-shaped concrete membrane shells. Due to the fact that the U-shaped concrete membrane shells are spliced in a sliding insertion mode, workers can complete construction work of the constructional column conveniently. Meanwhile, when the butt joint inserted bar in the upper layer of U-shaped concrete membrane shell moves to the position aligned with the lower layer of U-shaped concrete membrane shell along with the U-shaped concrete membrane shell, the butt joint inserted bar in the upper layer of U-shaped concrete membrane shell can be automatically inserted into the butt joint slot in the lower layer of U-shaped concrete membrane shell in a sliding manner, and workers can further complete the centering and splicing work of the U-shaped concrete membrane shells.
Drawings
Fig. 1 is a construction flow chart of the present application.
Fig. 2 is a schematic structural view during construction of the construction column in step S4.
Fig. 3 is a schematic diagram for showing a splicing state between two adjacent U-shaped concrete membrane shells.
Fig. 4 is an exploded view for showing the space between two adjacent U-shaped concrete membrane shells.
Fig. 5 is a view for showing a specific splicing manner of the butt-joint inserted rod and the butt-joint slot between two adjacent U-shaped concrete membrane shells.
Fig. 6 is a top view of a single U-shaped concrete membrane shell in example 1 of the present application.
Fig. 7 is a side view of a single U-shaped concrete membrane shell in the opening direction in embodiment 2 of the present application.
Description of reference numerals:
1. retracting the chute; 2. butting the inserted rods; 21. pre-jacking a spring; 22. a ball bearing; 3. butting slots; 4. a guide slide rail; 5. a guide chute; 6. building an interface; 7. a pull rod is arranged; 71. adjusting a rod; 72. adjusting the screw cylinder; 73. locking the nut; 74. installing an inserted link; 75. installing an inserting cylinder; 76. locking the screw; 100. a floor plate; 200. a reinforcement cage; 300. u-shaped concrete membrane shells; 400. a wall body.
Detailed Description
The present application is described in further detail below with reference to figures 1-7.
The embodiment of the application discloses a wall constructional column formwork-free construction method based on a BIM technology.
Example 1:
referring to fig. 1 and 2, the formwork-erecting-free construction method of the wall constructional column based on the BIM technology comprises the following steps: s1, modeling and designing by using a BIM technology: BIM modeling is carried out by utilizing a primary design drawing, and the constructional columns in different positions, different shapes and different sizes are independently distinguished and coded according to a CAD drawing; s2, prefabricating a U-shaped concrete membrane shell 300: according to the constructional columns in the BIM design, customizing the required U-shaped concrete membrane shell 300 to manufacturers according to the required types and quantity; s3, early preparation: gradually arranging the approach of materials and the approach of mechanical equipment; s4, constructional column construction: binding the reinforcement cage 200 at the designed position of the floor plate 100; assembling the U-shaped concrete membrane shell 300 from bottom to top along the reinforcement cage 200, and synchronously building the wall body 400 on two sides of the U-shaped concrete membrane shell 300; concrete pouring is performed every two layers of the U-shaped concrete membrane shells 300, and the required constructional columns are gradually poured along with the assembling rhythm of the U-shaped concrete membrane shells 300.
The plurality of U-shaped concrete membrane shells 300 are assembled to form the pouring cavity of the constructional column, formwork support and formwork removal are not needed, labor and material costs can be saved, and the construction period can be shortened.
Specifically, in step S4, there are two types of U-shaped concrete membrane shells 300, namely a long U-shaped concrete membrane shell 300 and a short U-shaped concrete membrane shell 300; the long U-shaped concrete membrane shells 300 and the short U-shaped concrete membrane shells 300 are spliced in a staggered mode from bottom to top, and the long U-shaped concrete membrane shells 300 and the short U-shaped concrete membrane shells 300 are arranged in a centering mode. After the wall 400 is built along the U-shaped concrete membrane shell 300, the wall 400 and the U-shaped concrete membrane shell 300 can be connected in a horse-tooth twist type, so that the connection strength between the wall 400 and the constructional column can be improved.
Referring to fig. 3, 4 and 5, specifically, in this embodiment, retraction sliding grooves 1 are respectively disposed at the bottom middle positions of both sides of the opening of each U-shaped concrete film shell 300, and the retraction sliding grooves 1 extend vertically. The retraction sliding groove 1 is provided with a butt joint insertion rod 2 in a sliding mode, and the total length of the butt joint insertion rod 2 is smaller than the total depth of the retraction sliding groove 1, so that the butt joint insertion rod 2 can be completely retracted into the retraction sliding groove 1. Correspondingly, in this embodiment, each of the U-shaped concrete membrane shells 300 is provided with a docking slot 3 at the top middle position of the two sides of the opening, the docking slot 3 extends vertically, and the docking slot 3 is in sliding insertion fit with the docking rod 2.
In the process of splicing the U-shaped concrete membrane shells 300, a worker aligns and slidingly inserts the butt joint insertion rod 2 in the U-shaped concrete membrane shell 300 on the upper layer into the butt joint insertion slot 3 of the U-shaped concrete membrane shell 300 on the lower layer, so that the U-shaped concrete membrane shells 300 on the upper layer and the lower layer can be quickly centered, and the centering and splicing work efficiency of the U-shaped concrete membrane shells 300 can be improved.
In this embodiment, the top of each U-shaped concrete membrane shell 300 at both sides of the opening is provided with a guide rail 4, the guide rails 4 and the U-shaped concrete membrane shell 300 are integrally formed, and both ends of the guide rails 4 extend to both sides of the U-shaped concrete membrane shell 300 along the horizontal direction. Correspondingly, in this embodiment, the guide sliding grooves 5 have been all seted up to the bottom of every U type concrete membrane shell 300 opening both sides, and two guide sliding grooves 5 are aligned with two guide sliding rails 4 one-to-one respectively and are set up, and every guide sliding groove 5 runs through to U type concrete membrane shell 300 both sides along the horizontal direction.
In the splicing process, a worker faces the opening of the U-shaped concrete membrane shell 300 on the previous layer to the reinforcement cage 200, simultaneously aligns and inserts the guide chute 5 of the U-shaped concrete membrane shell 300 on the previous layer to the guide slide rail 4 of the U-shaped concrete membrane shell 300 on the next layer, and finally fills concrete in the building interface 6 to bond and fix the two adjacent U-shaped concrete membrane shells 300, so as to complete the splicing work of the U-shaped concrete membrane shells 300. Meanwhile, when the butt joint inserted bar 2 in the upper layer of U-shaped concrete membrane shell 300 moves to the position aligned with the lower layer of U-shaped concrete membrane shell 300 along with the U-shaped concrete membrane shell 300, the butt joint inserted bar 2 in the upper layer of U-shaped concrete membrane shell 300 can be automatically inserted into the butt joint inserted bar 3 in the lower layer of U-shaped concrete membrane shell 300 in a sliding manner, so that the workers can further complete the centering and splicing work of the U-shaped concrete membrane shell 300.
In this embodiment, the height of the guide slide rail 4 is higher than the depth of the guide slide groove 5, and after the upper layer of U-shaped concrete membrane shell 300 is spliced to the lower layer of U-shaped concrete membrane shell 300, a building interface 6 for building concrete can be formed on both sides of the guide slide rail 4 between the upper layer of U-shaped concrete membrane shell 300 and the lower layer of U-shaped concrete membrane shell 300, so that workers can build and block the concrete, and the splicing sealing performance between the U-shaped concrete membrane shells 300 is improved, so that the water leakage phenomenon is not easy to occur in the subsequent concrete pouring process.
Referring to fig. 5, specifically, in this embodiment, a pre-supporting spring 21 is further installed in the retraction sliding chute 1, the top of the pre-supporting spring 21 supports against the bottom of the retraction sliding chute 1, and the bottom of the pre-supporting spring supports against the butt-joint insertion rod 2, so that the butt-joint force of the butt-joint insertion rod 2 can be improved, and the butt-joint insertion rod 2 is not easily jammed.
In the embodiment, the head of the butt-joint inserted rod 2 is also embedded with a ball 22 in a rolling way. In the process that the U-shaped concrete membrane shell 300 on the previous layer is spliced on the U-shaped concrete membrane shell 300 on the next layer in a sliding splicing mode, the pre-jacking spring 21 jacks the head of the butt-joint inserted rod 2 outwards to press the U-shaped concrete membrane shell 300 on the next layer, and the ball 22 is embedded in the head of the butt-joint inserted rod 2 in a rolling mode, so that rolling friction can be formed between the butt-joint inserted rod 2 and the U-shaped concrete membrane shell 300, and workers can push the U-shaped concrete membrane shell 300 on the previous layer to move and splice.
In this embodiment, the head of the docking plunger 2 is also rounded. In the process that the pre-jacking spring 21 jacks the butt joint insertion rod 2 to be inserted into the butt joint insertion slot 3 in a sliding mode, the butt joint insertion rod 2 can be conveniently inserted into the butt joint insertion slot 3 in a sliding alignment mode, and therefore the clamping condition is not prone to occurring.
Referring to fig. 2 and 6, in the present embodiment, two pairs of connecting members and two pairs of tie rods 7 are further installed inside the U-shaped concrete membrane shell 300; wherein, two pairs of connecting pieces are arranged at intervals along the horizontal direction, and two connecting pieces in the same pair of connecting pieces are respectively and fixedly arranged on two inner side surfaces of the opening of the U-shaped concrete membrane shell 300. The two tie rods 7 are respectively arranged corresponding to the two pairs of connecting pieces one by one, and two ends of each tie rod 7 are respectively detachably connected with two connecting pieces in the corresponding pair of connecting pieces.
After the U-shaped concrete membrane shell 300 is spliced, a worker installs the split cylinders in the U-shaped concrete membrane shell 300 to bind and fix the reinforcement cage 200, so that the reinforcement cage 200 is not easy to bend and deform in the concrete pouring process, and the integral supporting strength of the poured and formed constructional column can be improved. Meanwhile, the connecting strength of the two sides of the opening of the U-shaped concrete membrane shell 300 can be further improved by the opposite pull rods 7, so that the two sides of the opening of the U-shaped concrete membrane shell 300 are not easy to deform in the concrete pouring process to influence subsequent decoration work.
Referring to fig. 6, in particular, in the present embodiment, the tie-rod 7 is a double-threaded screw, and the thread directions of the two ends of the tie-rod 7 are opposite. Correspondingly, in the present embodiment, each connecting member includes an adjusting rod 71 and an adjusting screw 72; one end of the adjusting rod 71 is hinged to the U-shaped concrete membrane shell 300, one end of the adjusting screw cylinder 72 is hinged to one end of the adjusting rod 71, which is far away from the U-shaped concrete membrane shell 300, and the rotating directions of the adjusting rod 71 and the adjusting screw cylinder 72 are both rotating around the horizontal direction. After the U-shaped concrete membrane shell 300 is spliced, a worker connects two ends of the tie rod 7 to two adjusting screws in a corresponding pair of connecting pieces through threads respectively, and adjusts the tie rod 7 by rotating, so that the tie rod 7 drives and tightens the adjusting screw cylinders 72 at two sides and the adjusting rod 71, thereby tightening two sides of the opening of the U-shaped concrete membrane shell 300.
In this embodiment, lock nuts 73 are screwed to both ends of the tie rod 7. After the opposite pulling and tensioning are carried out on the two sides of the opening of the U-shaped concrete membrane shell 300 through the opposite pulling rod 7, a worker tightens the two locking nuts 73 to respectively lock the two ends of the opposite pulling rod 7 on the two adjusting screw cylinders 72, so that the opposite pulling rod 7 is not easy to loosen with the adjusting screw cylinders 72 in the subsequent working process, and the opposite pulling stability of the opposite pulling rod 7 on the two sides of the opening of the U-shaped concrete membrane shell 300 can be further improved.
Example 2:
referring to fig. 7, the present embodiment is different from embodiment 1 in the structure and the mounting manner of the tie bar 7.
Specifically, in the present embodiment, the counter pull rod 7 is a polished rod; wherein, the bottom of the two ends of the opposite pull rod 7 is fixed with an installation inserted bar 74, and the installation inserted bar 74 is vertically arranged. Correspondingly, in this embodiment, the connecting member includes an installation inserting tube 75, the installation inserting tube 75 is vertically fixed on the U-shaped concrete film shell 300, and the inner contour of the installation inserting tube 75 is adapted to the outer contour of the installation inserting rod 74 in an inserting manner, so as to perform sliding insertion on the installation inserting rods 74 at the two ends of the pull rod 7. After the U-shaped concrete membrane shell 300 is spliced, a worker aligns and slidingly inserts the installation insertion rod 74 in the opposite pull rod 7 into the installation insertion cylinder 75, so that the opposite pull rod 7 oppositely pulls two sides of the opening of the U-shaped concrete membrane shell 300.
Each mounting insertion cylinder 75 is threadedly connected with a locking screw 76, and after the mounting insertion rod 74 is inserted into the mounting insertion cylinder 75, a worker fixes the mounting insertion rod 74 to the mounting insertion cylinder 75 by tightening the locking screw 76, so as to fix the counter pull rod 7, and the counter pull rod 7 is not easy to drive the mounting insertion rod 74 to be separated from the mounting insertion cylinder 75 in the concrete pouring process.
The embodiments of the present invention are preferred embodiments of the present application, and the protection scope of the present application is not limited thereby, wherein like parts are denoted by like reference numerals. Therefore, the method comprises the following steps: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (10)

1. A wall constructional column formwork-free construction method based on a BIM technology is characterized by comprising the following steps: the method comprises the following steps:
s1, modeling and designing by using a BIM technology: BIM modeling is carried out by utilizing a primary design drawing, and the constructional columns in different positions, different shapes and different sizes are independently distinguished and coded according to a CAD drawing;
s2, prefabricating a U-shaped concrete membrane shell (300): according to the constructional columns in the BIM design, customizing the required U-shaped concrete membrane shells (300) to manufacturers according to the required types and the required number;
s3, early preparation: gradually arranging the approach of materials and the approach of mechanical equipment;
s4, constructional column construction: binding a reinforcement cage (200) at the design position of the floor plate (100); assembling the U-shaped concrete membrane shell (300) from bottom to top along the reinforcement cage (200), and synchronously building the wall body (400) at two sides of the U-shaped concrete membrane shell (300); concrete pouring is carried out once every two layers of U-shaped concrete membrane shells (300) so as to gradually pour the required constructional columns along with the assembling rhythm of the U-shaped concrete membrane shells (300).
2. The BIM technology-based wall constructional column formwork-free construction method according to claim 1, characterized in that: in step S4, the types of the U-shaped concrete membrane shells (300) include a long U-shaped concrete membrane shell (300) and a short U-shaped concrete membrane shell (300), the long U-shaped concrete membrane shells (300) and the short U-shaped concrete membrane shells (300) are sequentially spliced in a staggered manner from bottom to top, and the long U-shaped concrete membrane shells (300) and the short U-shaped concrete membrane shells (300) are arranged in a centered manner.
3. The BIM technology-based wall constructional column formwork-free construction method according to claim 2, characterized in that: the middle position of the bottom of each U-shaped concrete membrane shell (300) on two sides of the opening is provided with a retraction sliding groove (1) which extends vertically, a butt joint inserting rod (2) is arranged in the retraction sliding groove (1) in a sliding mode, and the butt joint inserting rod (2) can be completely retracted into the retraction sliding groove (1); each U-shaped concrete membrane shell (300) is provided with a vertically extending butt joint slot (3) at the middle position of the top of the two sides of the opening, and the butt joint slots (3) are used for allowing butt joint insertion rods (2) on the adjacent U-shaped concrete membrane shells (300) to be in sliding insertion connection.
4. The BIM technology-based wall constructional column formwork-free construction method according to claim 3, characterized in that: the top of each U-shaped concrete membrane shell (300) on two sides of the opening is provided with a guide sliding rail (4), the bottom of each U-shaped concrete membrane shell (300) on two sides of the opening is provided with a guide sliding chute (5), and the guide sliding chutes (5) are used for the guide sliding rails (4) on the upper layer of U-shaped concrete membrane shell (300) to be in sliding insertion connection; and after the adjacent two U-shaped concrete membrane shells (300) are spliced, building interfaces (6) for concrete building are formed on two sides of the guide sliding rail (4).
5. The BIM technology-based wall construction column formwork-free construction method according to claim 4, characterized in that: a pre-ejection spring (21) is further installed in the retraction sliding groove (1), and the pre-ejection spring (21) is used for ejecting and inserting the head of the butt joint insertion rod (2) into the butt joint insertion groove (3).
6. The BIM technology-based wall construction column formwork-free construction method according to claim 5, characterized in that: the head of the butt joint inserted bar (2) is embedded with a ball (22) in a rolling manner.
7. The BIM technology-based wall constructional column formwork-free construction method according to claim 3, characterized in that: two pairs of connecting pieces are arranged in the U-shaped concrete membrane shell (300) at intervals along the horizontal direction, and two connecting pieces in the same pair of connecting pieces are fixedly arranged on two inner side surfaces of an opening of the U-shaped concrete membrane shell (300) respectively; two opposite pull rods (7) are installed in the U-shaped concrete membrane shell (300), the two opposite pull rods (7) are respectively installed on the two pairs of connecting pieces, and two ends of each opposite pull rod (7) are respectively detachably connected with two connecting pieces in the corresponding pair of connecting pieces.
8. The BIM technology-based wall construction column formwork-free construction method according to claim 7, characterized in that: the opposite pull rod (7) is a double-thread screw, and the thread turning directions of two ends of the opposite pull rod (7) are opposite; the connecting pieces comprise adjusting rods (71) hinged to the U-shaped concrete membrane shells (300) and adjusting screw cylinders (72) hinged to one ends, far away from the U-shaped concrete membrane shells (300), of the adjusting rods (71), and the adjusting screw cylinders (72) are used for connecting the counter pull rods (7) in a threaded mode.
9. The BIM technology-based wall construction column formwork-free construction method according to claim 7, characterized in that: the bottoms of the two ends of the opposite pull rod (7) are respectively fixed with a vertically arranged installation inserted rod (74); correspondingly, the connecting piece comprises an installation inserting tube (75) which is vertically fixed on the U-shaped concrete membrane shell (300), and the installation inserting tube (75) is used for the installation inserting rod (74) to be inserted in a sliding mode.
10. The BIM technology-based wall construction column formwork-free construction method according to claim 8, characterized in that: two ends of the opposite pull rod (7) are in threaded connection with locking nuts (73), and the two locking nuts (73) are used for respectively locking two ends of the opposite pull rod (7) to the two adjusting screw cylinders (72).
CN202210672195.9A 2022-06-15 2022-06-15 Wall constructional column formwork-free construction method based on BIM technology Pending CN114908899A (en)

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CN109212382A (en) * 2018-10-31 2019-01-15 南昌保莱科技有限公司 A kind of GPS inspection device for high-tension line
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