A BIM-based assembly type integrated insulation board assembling auxiliary device and construction method

Abstract

The application discloses a kind of based on BIM assembly type integrated heat preservation board splicing auxiliary device and construction method, wherein the auxiliary device includes chassis, turnover frame and cylinder, first support rod is arranged at the left end of chassis, turnover frame is rotatably connected between two first support rods, support is arranged at the right end of turnover frame, cylinder is arranged between support and chassis, baffle is arranged at the left end of turnover frame, second support rod is arranged below turnover frame, plug rod is inserted in the middle part of turnover frame, limit rod is sleeved at the end of plug rod.The application optimizes prefabricated component by using BIM technology, restores design intention and scheme, and also provides guidance for worker's construction; by using auxiliary device to hoist prefabricated component, the hoisting angle of prefabricated component is changed, the knocking and damage of component during hoisting is avoided, the work efficiency is improved, and the smooth construction is ensured.

Description

Technical Field

[0001] This invention relates to the assembly and construction of prefabricated PC component integrated insulation boards, and particularly to a BIM-based prefabricated integrated insulation board assembly auxiliary device and construction method. Background Technology

[0002] Prefabricated construction has become a trend in the construction industry. However, in actual construction, due to tight schedules and the need for timely delivery, aluminum alloy formwork and attached scaffolding systems are being used for the transfer layer. This has led to problems such as: the balcony location or facade details not being considered in the detailed design of PC components; the distance between the climbing formwork and the building not being considered, resulting in limited space for the later reinforcement of the aluminum alloy formwork; prefabrication deviations in the reinforcement holes at the connection between the prefabricated frame and the aluminum alloy formwork, making reinforcement impossible; deviations in the later attachment holes of the attached scaffolding and the wall attachment holes of the tower crane; and collisions during the hoisting of prefabricated components.

[0003] During construction, for safety reasons, the prefabricated components are transported to the construction site by being loaded horizontally. After being unloaded, they are lifted directly. During this process, the edges and corners of the prefabricated components may be bumped or damaged, which may cause inconvenience to the later construction. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide a BIM-based prefabricated integrated insulation board assembly auxiliary device and construction method, which uses BIM technology to optimize prefabricated components and solve problems such as deviation and collision during the assembly process.

[0005] The technical solution adopted by this invention to solve the technical problem is as follows:

[0006] A BIM-based prefabricated integrated insulation board assembly auxiliary device includes a base frame, a tilting frame, and a cylinder. The left end of the base frame is provided with a first support rod, which consists of two rods, and the tilting frame is rotatably connected between the two rods. The right end of the tilting frame is provided with a bracket, and a cylinder is provided between the bracket and the base frame. The left end of the tilting frame is provided with a baffle, and a second support rod is provided below the tilting frame. An insert rod is inserted into the middle of the tilting frame, and a limiting rod is sleeved at the end of the insert rod.

[0007] The second support rod is L-shaped, with its top located below the tilting frame, and one end of its bottom connected to the base frame.

[0008] The left end of the tilting frame is provided with connecting shafts on both sides, and the connecting shafts are rotatably connected to the first support rod.

[0009] The bottom of the air cylinder is fixedly connected with the right end of the chassis, and the push rod of the air cylinder is hingedly connected with the support.

[0010] The middle part of the turnover frame is provided with at least two insertion rods, the insertion rods are in L-shaped distribution, and through holes are formed in the insertion rods.

[0011] The outer part of one side of the turnover frame is provided with a guide sleeve, the insertion rod penetrates through the guide sleeve, and the insertion rod and the guide sleeve are fixedly connected through bolts.

[0012] The limiting rods are at least two, adjacent limiting rods are connected through connecting rods, and the limiting rods are fixedly connected with the insertion rod through jacking bolts.

[0013] The construction method of the BIM-based assembly type integrated insulation board splicing auxiliary device comprises the following steps:

[0014] S1: According to the construction drawing, the PC component is modeled according to the wall body and position, and the reserved hole position on the wall body is labeled and described;

[0015] S2: The connecting parts of the PC component and the cast-in-place structure are simulated and spliced by using BIM, the collision points are recorded, the collision points are analyzed, the problems of the installation are determined, the deviation size is adjusted, and the adjustment content is reflected in the simulation splicing model;

[0016] S3: According to the circumference and shape of the floor, the total machine position number and specific position of the attached scaffold are determined, the drawing is designed, the actual situation and specific position of each building are optimized on the basis of the design drawing, the optimization parts mainly reduce the position of the conflict with the external protruding eaves and nodes, and the model is established by using the BIM technology after the optimization of the attached scaffold, and the simulation test splicing is carried out according to the requirements and the deepening assembly type PC component;

[0017] S4: The hoisting process of the prefabricated component is demonstrated by using the BIM technology, the prefabricated component is hoisted to the turnover frame in a transverse hoisting mode, and the position of the limiting rod is adjusted according to the width of the prefabricated component, so that the prefabricated component is clamped on both sides.

[0018] S5: Start the air cylinder, make the turnover frame lift the prefabricated component upward by 60°, and use the crawler crane to vertically hoist the prefabricated component;

[0019] S6: The aluminum alloy formwork splicing is carried out in the construction sequence of wall first and roof later, because there is a 250mm wall in the local conversion layer, a 50mm wide plate is used to adjust the wall thickness and roof;

[0020] S7: The prefabricated component wall body formwork is fixed by adopting 4 inner wall and 4 outer wall back notches, and the cast-in-place structure wall body formwork is fixed by adopting 4 inner wall and 5 outer wall back notches, and two 40*60*2mm steel back notches are pulled in and out by the high-tension butt bolts of M18, the first position of the pull bolt in the vertical direction is 200mm in the horizontal position, the second is 800mm, the third is 1400mm, and the fourth is 2200mm; the interval is not more than 800mm;

[0021] S8: The concrete pouring process is simulated by adopting the BIM technology, the pouring sequence, the vibrating requirement, the plate thickness and the elevation control measures are clear, and the pouring is carried out by adopting the special hopper, wherein: the pouring sequence is carried out from the west side according to the position of the pump truck, in order to prevent the problems of bubbles and honeycomb after the shear wall is removed, the shear wall is poured in layers, preferably not more than 500mm, the beam is poured after the wall, the pouring process is not more than 1h, and the cold joint is prevented due to the pouring work;

[0022] S9: The elevation control is carried out by using the original control line of the pop line +50mm on the floor vertical reinforcement after the formwork is completed, and the plate thickness control is carried out by using the special ruler and the pull line control; after the pouring is completed, the surface should be covered and maintained according to the standard;

[0023] S10: The formwork removal should follow the basic principle of first supporting and then removing, and then supporting and then removing, under the premise of not affecting the forming quality of the concrete component, the wall column side formwork is removed, the aluminum alloy formwork vertical support is reserved, and the side formwork of the vertical frame is transmitted to the next layer for continuous use through the material transmission port, after the formwork is removed, the concrete wall and the floor surface are maintained for not less than 7d.

[0024] The positive beneficial effects of the present application are:

[0025] 1: The present application adopts the BIM technology to simulate in advance, carries out standardized construction, saves cost on this basis, reduces the loss rate of the insulation integrated formwork, and dynamically simulates and three-dimensionally discloses more intuitively, improves the construction skills and technical operation ability of workers, guarantees the one-time survival rate, and avoids unnecessary waste and repeated construction.

[0026] 2: The present application changes the hoisting angle of the prefabricated component by using the auxiliary device to hoist the prefabricated component, avoids the knocking and damage of the component in the hoisting process, improves the work efficiency, and ensures the smooth construction in the later period.

[0027] 3: The present application optimizes the prefabricated component by using the BIM technology, needs to reserve holes on the PC component in advance according to the simulation results, optimizes the conflict and collision in advance, restores the design intention and scheme, and also provides guidance for the construction of workers. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 It is a structure schematic view of the auxiliary device of the application;

[0029] Figure 2 It is a partial structure schematic view of the turnover frame of the application;

[0030] Wherein: 1 - base frame, 2 - first support rod, 3 - second support rod, 4 - turnover frame, 401 - guide sleeve, 5 - baffle, 6 - support, 7 - cylinder, 8 - plug rod, 9 - limiting rod, 10 - connecting rod, 11 - through hole, 12 - bolt. DETAILED DESCRIPTION

[0031] The application will be further explained and described below in combination with the drawings:

[0032] Example 1, a kind of based on BIM assembly type integrated insulation board assembly auxiliary device, including base frame 1, turnover frame 4 and cylinder 7, the left end of base frame 1 is provided with first support rod 2, first support rod 2 is two, and turnover frame 4 is rotatably connected between the two first support rods 2, the right end of turnover frame 4 is provided with support 6, and cylinder 7 is arranged between support 6 and base frame 1, the left end of turnover frame is provided with baffle 5, the lower portion of turnover frame 4 is provided with second support rod 3, plug rod 8 is inserted in the middle portion of turnover frame 4, and the end portion of plug rod 8 is sleeved with limiting rod 9.

[0033] Second support rod 3 is L-shaped distribution, and the top of second support rod 3 is located below turnover frame 4, and one end of the bottom of second support rod 3 is connected with base frame 1.

[0034] The left side of the left end of turnover frame 4 is provided with a connecting shaft, and the connecting shaft is rotatably connected with first support rod 2.

[0035] The bottom of cylinder 7 is fixedly connected with the right end of base frame 1, and the push rod of cylinder 7 is hingedly connected with support 6.

[0036] At least two plug rods 8 are penetrated through the middle portion of turnover frame 4, plug rod 8 is L-shaped distribution, and through hole 11 is formed in plug rod 8.

[0037] The outer portion of one side of turnover frame 4 is provided with guide sleeve 401, plug rod 8 is penetrated through guide sleeve 401, and plug rod 8 and guide sleeve 401 are fixedly connected by bolt 12.

[0038] Limiting rod 9 is at least two, and adjacent limiting rods 9 are connected together by connecting rod 10, and limiting rod 9 is fixedly connected with plug rod 8 by jacking bolt.

[0039] In the above description, when the cylinder is in the reset state, the turnover frame is in the horizontal state, and the bottom of the turnover frame is in contact with the top of the second support rod.

[0040] In the above description, the baffle and the turnover frame are in an integrated structure, and the upper end surface of the turnover frame is located at a position above the top surface of the first support.

[0041] In the above description, a guide sleeve is arranged on one side of the turnover frame, and a second through hole is formed in the guide sleeve, and the position of the second through hole corresponds to the position of the through hole in the insertion rod.

[0042] In the above description, one side of the insertion rod is fixed by a bolt penetrating through the through hole in the guide sleeve and the through hole in the insertion rod, and a matching nut is used for tightening; the limiting rod is fixedly connected with the end of the insertion rod by a bolt; during use, the width of the preform is adjusted freely, which plays a limiting role and avoids the preform from falling off the turnover frame during turnover.

[0043] In the above description, the left end of the turnover frame is rotatably connected with the first support rod.

[0044] In the above description, the air cylinder can rotate the turnover frame by 60°.

[0045] In the above description, the limiting rods are connected together by connecting rods to avoid the horizontal tilting of a single limiting rod. Embodiment

[0046] The above-described construction method of the BIM-based assembly type integrated insulation board assembly auxiliary device includes the following steps:

[0047] S1: According to the construction drawings, model the PC components according to the wall body and position, and label and explain the reserved hole positions on the wall body.

[0048] In the above description, before construction, the technical department takes the lead in organizing a coordination meeting among multiple units, the assembly type deepening design unit, the PC component prefabrication plant, and the aluminum alloy formwork manufacturer. The aluminum alloy formwork manufacturer carries out propaganda and popularization according to the aluminum film deepening design, and clearly states whether all the eaves nodes of the outer wall are deepened, so as to avoid the situation that the nodes are not deepened by both the aluminum alloy formwork manufacturer and the assembly type design, causing difficulty in later reinforcement connection. Then, the assembly type deepening design unit makes comments. If there is no comment on the aluminum alloy formwork, the assembly type wall hole deepening is carried out according to the aluminum film deepening design, and the prefabricated component manufacturer produces according to the drawings. If there are too many differences in opinions among the parties, the opinions of all parties need to be sorted out to produce new drawings. If there are not many disputes, the final version of the signed drawings is formed. According to the construction drawings, modeling is started, and an aluminum alloy formwork trial assembly model is established according to the signed drawings. The PC components are modeled according to the wall body and position, and the reserved hole positions on the wall body need to be specially explained.

[0049] S2: Simulate the connection part of PC component and cast-in-place structure by BIM, record the collision points, analyze the collision points, find out the problem of installation, adjust the deviation size, and reflect the adjustment content to the simulation assembly model;

[0050] In the above description, the simulation assembly is performed by BIM technology, especially the connection part of PC component and cast-in-place structure. The BIM staff simulates the connection part of PC component and cast-in-place structure. The collision points found in the assembly process are recorded and analyzed. The problem of installation is found out. The deviation size is adjusted. The adjustment content is reflected to the simulation assembly model. After adjustment, the trial assembly is performed again. If the trial assembly is successful, it is directly submitted to the assembly type design for further adjustment and deepening. If the trial assembly is not successful, it returns to the previous step, re-adjusts and optimizes the design.

[0051] S3: Determine the total number and specific position of the attached scaffold according to the perimeter and shape of the floor, design the drawing, optimize the actual situation and specific position of each building based on the design drawing, and optimize the position to minimize the conflict with the external protruding eaves and nodes. After optimization, a model is established using BIM technology. After the attached scaffold modeling, simulate the trial assembly with the deepened assembly type PC component according to the requirements;

[0052] In the above description, the total number and specific position of the attached scaffold are preliminarily determined according to the perimeter and shape of the floor. The drawing is designed. The actual situation and specific position of each building are optimized based on the design drawing. The optimized position mainly minimizes the conflict with the external protruding eaves and nodes to ensure the convenience and accuracy of the later wall attachment support installation. Since each external facade has a non-linear type, the distance problem is not the only consideration for the machine position setting. The stress problem must also be considered. After the drawing is optimized, the deepened assembly type wall attachment support is established according to the final version of the drawing and BIM technology. After the attached scaffold modeling, simulate the trial assembly with the deepened assembly type PC component according to the requirements.

[0053] S4: Demonstrate the hoisting process of the prefabricated component using BIM technology, and use the horizontal hoisting method to hoist the prefabricated component to the turnover frame (4), then adjust the position of the limiting rod (9) according to the width of the prefabricated component to clamp the two sides of the prefabricated component;

[0054] S5: Start the air cylinder (7) to lift the prefabricated component upward by 60° by the turnover frame (4), and use the crawler crane to hoist the prefabricated component vertically;

[0055] In the above description, the hoisting process of prefabricated components is demonstrated by using BIM technology, from the transportation of wall panels to the site, numbered storage, lifting, support, correction, reinforcement and grouting. These points are visualized by using BIM technology to simulate animation, which reflects the 20mm gap between the bottom of the vertical component and the floor, explains the positioning and the conditions that should be met before hoisting, and describes the operation method, elevation control, inspection and adjustment of prefabricated components, auxiliary measures for positioning, correction methods, and quality requirements, including axis position, surface perpendicularity, floor elevation, and component installation allowable deviation. In addition to the above, the process flow is also clearly defined, and the simulated animation is used to train the construction team to achieve the purpose of guiding the construction.

[0056] S6: Aluminum alloy formwork assembly adopts the construction sequence of wall first and roof later. Due to the existence of 250mm wall in the local conversion layer, 50mm wide plates are used to adjust the wall thickness and roof;

[0057] S7: The prefabricated component wall formwork adopts 4-way internal wall and 4-way external wall back fillet for fixation, and the cast-in-place structure wall formwork adopts 4-way internal wall and 5-way external wall back fillet for fixation. Two 40*60*2mm steel back fillets are connected inside and outside by M18 high-tension butt bolts. The first position of the pull bolt in the vertical direction is 200mm in the horizontal position, the second is 800mm, the third is 1400mm, and the fourth is 2200mm. The spacing is not greater than 800mm;

[0058] S8: BIM technology is used to simulate the concrete pouring process to clarify the pouring sequence, vibration requirements, plate thickness and elevation control measures. Special hopper is used for hoisting and pouring. The pouring sequence is from the west side according to the position of the pump truck, and the shear wall is poured in layers to prevent bubbles and honeycomb from affecting the appearance quality after the membrane is removed. The shear wall is poured in layers with a thickness of not more than 500mm, and the beam is poured after the wall to ensure that the pouring process is not more than 1h to prevent cold joints due to pouring work;

[0059] S9: Elevation control uses a +50mm line on the floor vertical reinforcement after the formwork is completed, which is used as the original control line during pouring. Plate thickness control uses special rulers and lines for control. After pouring is completed, the surface should be covered and maintained according to the standard;

[0060] S10: Formwork removal should follow the basic principle of first support and then removal, and then support and then removal. The side formwork of the vertical frame is removed, the aluminum alloy formwork vertical support is retained, and the side formwork of the vertical frame is transferred to the next layer for continuous use through the material transfer port. After the formwork is removed, the concrete wall and floor surface should be maintained for not less than 7d.

[0061] In the above description, the height of the attached scaffold is generally assembled with the floor, when the assembled height is greater than 4 floors, it is necessary to timely promote, to check the outer wall before promotion, to seal the outer wall bolt hole and to process the outer wall surface base layer, to polish and repair the uneven place; after the above construction steps are completed, the attached scaffold is promoted as a whole, and the promotion process needs the on-site supervision of the safety personnel of the using unit and the safety personnel of the installation unit.

[0062] The application adopts BIM technology to simulate in advance, carries out standardized construction, saves cost on this basis, and reduces the loss rate of the thermal insulation integrated formwork; moreover, dynamic simulation and three-dimensional disclosure are more intuitive, improve the construction skills and technical operation ability of workers, ensure the one-time survival rate, and avoid unnecessary waste and repeated construction.

Claims

1. A BIM-based assembly-type integrated insulation board assembly aid device, comprising a chassis (1), a turnover frame (4) and a pneumatic cylinder (7), characterized in that: The left end of the chassis (1) is provided with first support rods (2), the first support rods (2) are two, and a turnover frame (4) is rotatably connected between the two first support rods (2), the right end of the turnover frame (4) is provided with a support (6), a pneumatic cylinder (7) is arranged between the support (6) and the chassis (1), the left end of the turnover frame is provided with a baffle (5), the lower portion of the turnover frame (4) is provided with a second support rod (3), the middle portion of the turnover frame (4) is provided with an inserting rod (8), and the end portion of the inserting rod (8) is sleeved with a limiting rod (9); the second support rod (3) is L-shaped, the top of the second support rod (3) is located below the turnover frame (4), and one end of the bottom of the second support rod (3) is connected with the chassis (1); the left end of the turnover frame (4) is provided with a connecting shaft on each side, and the connecting shaft is rotatably connected with the first support rod (2); the bottom of the pneumatic cylinder (7) is fixedly connected with the right end of the chassis (1), and the push rod of the pneumatic cylinder (7) is hingedly connected with the support (6); the middle portion of the turnover frame (4) penetrates at least two inserting rods (8), the inserting rods (8) are L-shaped, and through holes (11) are formed in the inserting rods (8); the outer portion of one side of the turnover frame (4) is provided with a guide sleeve (401), the inserting rod (8) penetrates the guide sleeve (401), and the inserting rod (8) and the guide sleeve (401) are fixedly connected by bolts (12); the limiting rods (9) are at least two, adjacent limiting rods (9) are connected by connecting rods (10), and the limiting rods (9) are fixedly connected with the inserting rods (8) by jacking bolts. 2.The construction method of the BIM-based assembly type integrated insulation board splicing auxiliary device according to claim 1, characterized in that, The method comprises the following steps: S1: According to the construction drawing, the PC component is modeled according to the wall and position, and the reserved hole position on the wall is labeled and explained; S2: Simulate the connecting part of the PC component and the cast-in-place structure by using BIM, record the collision points, analyze the collision points, find out the problem of installation, adjust the deviation size, and reflect the adjustment content in the simulation assembly model; S3: According to the circumference and shape of the floor, the total machine position number and specific position of the attached scaffold are determined, the drawing is designed, and the actual situation and specific position of each building are optimized based on the design drawing. The optimization part is to reduce the position of the conflict with the external protruding eaves and nodes. After optimization, a model is established by using BIM technology. After the attached scaffold modeling, the simulation test assembly is carried out according to the requirements and the deepening assembly type PC component; S4: The hoisting process of the prefabricated component is demonstrated by using BIM technology, and the prefabricated component is hoisted to the turnover frame (4) by using the transverse hoisting mode. According to the width of the prefabricated component, the position of the limiting rod (9) is adjusted, so that the prefabricated component is clamped on both sides; S5: Start the pneumatic cylinder (7), make the turnover frame (4) lift the prefabricated component upward by 60°, and use the crawler crane to vertically hoist the prefabricated component. S6: The aluminum alloy template assembly adopts the construction sequence of wall first and roof later. Due to the existence of 250mm wall in the local conversion layer, 50mm wide plate is used to adjust the wall thickness and roof; S7: The wall template of prefabricated components adopts 4-way inner wall and 4-way outer wall back fillet for fixation, and the wall template of cast-in-place structure adopts 4-way inner wall and 5-way outer wall back fillet for fixation. Two 40*60*2mm steel back fillets are pulled inside and outside by M18 high-tension butt bolts. The vertical direction of the pull bolt is first at the horizontal position of 200mm, second at 800mm, third at 1400mm, and fourth at 2200mm. The interval is not more than 800mm; S8: BIM technology is used to simulate the concrete pouring process, and the pouring sequence, vibration requirements, plate thickness and elevation control measures are clear. Pouring is carried out by using a hopper, in which: the pouring sequence is carried out from the west side according to the position of the pump truck, and in order to prevent bubbles and honeycomb problems after the shear wall is removed, the shear wall is poured in layers, preferably not more than 500mm, and the wall is poured before the beam, ensuring that the pouring process is not more than 1h to prevent cold joints due to pouring work; S9: Elevation control uses a +50mm line on the floor vertical reinforcement after the formwork is completed, which is used as the original control line during pouring. Plate thickness control uses a ruler and a line. After pouring is completed, the surface should be covered and maintained according to the standard; S10: Template removal should follow the basic principles of first support and then removal, and later support and then removal. On the premise of not affecting the forming quality of concrete components, the side template of the wall column is removed, the aluminum alloy template vertical support is retained, and the side template of the vertical frame is transferred to the next layer for continuous use through the material transfer port. After the template is removed, the concrete wall and floor surface should be maintained for not less than 7d.

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