Stair concrete pouring method based on BIM technology and aluminum formwork

Abstract

The invention discloses a stair concrete pouring method based on a BIM (Building Information Modeling) technology and an aluminum template, which comprises the following steps of: manufacturing a stair aluminum template according to a BIM model, and setting a pouring area; a concrete vibrating opening and an exhaust opening are formed in the aluminum formwork of the top end step of each pouring area, and a cover plate is manufactured; the stair aluminum formwork is installed at the stair construction position, concrete pouring starts from a pouring area of the first section of the bottom of a stair, a vibrating rod is inserted from a vibrating opening for vibrating in the pouring process, and after concrete rises to the inner side of the vibrating opening and concrete grout appears at an exhaust opening, cover plates are installed at the vibrating opening and the exhaust opening; the subsequent pouring construction of a plurality of pouring areas is completed in sequence till the last-section pouring area of the top of the stairway is reached; and during construction of a tail-section pouring area, continuously vibrating until slurry overflows from the exhaust port and concrete rises to the bottom surface position of the aluminum template on the inner side of the vibrating port, stopping vibrating and mounting the cover plate, and completing concrete pouring construction of the whole stair. The method improves the concrete pouring quality and does not need later repair.

Description

Technical Field

[0001] The invention relates to the technical field of building engineering, and in particular to a staircase concrete pouring method based on BIM technology and aluminum formwork. Background Art

[0002] With the rapid development of the construction industry, the requirements for construction efficiency, cost, environmental protection, quality control, etc. are becoming higher and higher. Therefore, aluminum formwork, as a high-quality, high-performance building formwork, has broad application prospects.

[0003] At present, aluminum formwork construction technology is highly valued in the construction industry. It has good performance and economic value, and has certain advantages over similar products. Aluminum formwork has gradually replaced traditional wooden formwork. The advantages of aluminum formwork construction technology, such as convenient construction, high efficiency, high recycling rate, and green environmental protection, have been fully confirmed, but quality problems have also emerged.

[0004] When using aluminum formwork to cast stair concrete, due to its poor air permeability, bubbles cannot be removed during concrete pouring, resulting in bubbles on the concrete surface. There are a large number of pores in the stair molding surface concrete, which seriously affects the molding quality of the stair sections. Traditionally, most of the pores on the stair molding surface are improved by post-repair methods, which is time-consuming and labor-intensive, and it is difficult to achieve the expected results. Summary of the invention

[0005] The technical problem to be solved by the present invention is to provide a stair concrete pouring method based on BIM technology and aluminum formwork, which overcomes the defects of traditional stair forming surface concrete pouring, avoids the generation of bubbles after concrete pouring and molding, improves the quality of concrete pouring, and does not require subsequent repairs, thereby saving manpower and material costs, shortening the construction period, and improving construction efficiency.

[0006] In order to solve the above technical problems, the present invention provides a staircase concrete pouring method based on BIM technology and aluminum formwork, which comprises the following steps: Step 1: Make the staircase aluminum formwork according to the BIM model. The staircase aluminum formwork sets several pouring areas at intervals of several steps from bottom to top; Step 2: A concrete vibration port is opened in the center of the aluminum formwork at the top step of each pouring area, exhaust ports are opened on both sides of the concrete vibration port, and corresponding concrete vibration port cover plates and exhaust port cover plates are made; Step 3: Install the aluminum formwork of the stairs to the construction location of the stairs. The concrete pouring starts from the first pouring area at the bottom of the stairs. During the pouring process, insert a vibrating rod from the concrete vibrating port of the pouring area to vibrate the poured concrete, and observe the rising height of the concrete in the exhaust port and the overflow in real time; Step 4: After the concrete rises to the inner side of the concrete vibrating port and concrete slurry appears at the exhaust port, install the concrete vibrating port cover plate and the exhaust port cover plate at the concrete vibrating port and the exhaust port respectively; Step 5: Complete the concrete pouring construction of several subsequent pouring areas in sequence according to Steps 3 and 4 until the last pouring area at the top of the stairs; Step 6. During the concrete pouring construction in the final pouring area, observe the rising height of the concrete in the exhaust port, continue to vibrate until the concrete slurry overflows from the exhaust port, and the concrete rises to the bottom of the aluminum formwork inside the concrete vibration port, stop vibrating, and complete the pouring; install the concrete vibration port cover and the exhaust port cover to complete the concrete pouring construction of the entire staircase.

[0007] Furthermore, a galvanized steel pipe is manufactured, and the galvanized steel pipe is fixed to the exhaust port by means of pins. A flange is provided on the top surface of the galvanized steel pipe, and the exhaust port cover is fixed to the flange by means of screws.

[0008] Furthermore, the appearance of concrete slurry at the exhaust port in step 4 refers to the appearance of concrete slurry in the galvanized steel pipe, and the overflow of concrete slurry from the exhaust port in step 6 refers to the overflow of concrete slurry from the galvanized steel pipe.

[0009] Furthermore, the diameter of the concrete vibration port is 200×300 mm, and the diameter of the exhaust port is 100 mm.

[0010] Furthermore, a countersunk hole is provided on the inner side of the long side of the concrete vibration port, the concrete vibration port cover plate is provided with baffles around it and a handle in the middle, and a through hole is provided in the middle of the long side baffle. When the concrete vibration port cover plate is installed on the concrete vibration port, it is fixed by inserting pins into the through holes and the countersunk holes. Furthermore, when pouring concrete in each pouring area, observe the rising height of the concrete. Stop pouring the concrete when it reaches 10 to 20 mm below the concrete vibration port and the exhaust port, start continuous vibration, and continue pouring after the concrete is vibrated and compacted.

[0011] Since the staircase concrete pouring method based on BIM technology and aluminum formwork of the present invention adopts the above technical scheme, that is, the method manufactures the staircase aluminum formwork according to the BIM model, and sets a number of pouring areas; a concrete vibration port is centrally opened at the aluminum formwork of the top step of each pouring area, exhaust ports are opened on both sides of the vibration port, and corresponding cover plates are manufactured; the staircase aluminum formwork is installed to the staircase construction position, and the concrete pouring starts from the first pouring area at the bottom of the staircase, and during the pouring process, a vibrating rod is inserted from the concrete vibrating port to vibrate the poured concrete, and after the concrete rises to the inner position of the concrete vibrating port and concrete slurry appears at the exhaust port, cover plates are installed at the vibrating port and the exhaust port; the concrete pouring construction of the subsequent several pouring areas is completed in sequence until the last pouring area at the top of the staircase; when the last pouring area is constructed, the vibration is continued until the concrete slurry overflows from the exhaust port, the concrete rises to the bottom surface of the aluminum formwork inside the vibration port, the vibration is stopped, the cover plate is installed, and the concrete pouring construction of the entire staircase is completed. This method overcomes the defects of traditional step-shaped surface concrete pouring, avoids the generation of bubbles after concrete pouring and molding, improves the quality of concrete pouring, and does not require subsequent repairs, saving manpower and material costs, shortening the construction period, and improving construction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments: Figure 1 This is a schematic diagram of the aluminum formwork for the stairs in this casting method; Figure 2 for Figure 1 A top view of Figure 3 This is a schematic diagram of the galvanized steel pipe and cover plate of the exhaust port in this casting method; Figure 4 This is a schematic diagram of the concrete vibrating port cover in this casting method. DETAILED DESCRIPTION

[0013] Implementation example Figure 1 and Figure 2 As shown, the staircase concrete pouring method based on BIM technology and aluminum formwork of the present invention comprises the following steps: Step 1: Make the staircase aluminum formwork 1 according to the BIM model. The staircase aluminum formwork 1 sets several pouring areas at intervals of several steps from bottom to top; Step 2: A concrete vibrating port 11 is centrally opened on the aluminum formwork at the top step of each pouring area, exhaust ports 12 are respectively opened on both sides of the concrete vibrating port 11, and corresponding concrete vibrating port cover plates 13 and exhaust port cover plates 14 are made; Step 3: Install the staircase aluminum formwork 1 to the staircase construction position, and start pouring concrete from the first pouring area at the bottom of the staircase. During the pouring process, insert a vibrating rod through the concrete vibrating port 11 in the pouring area to vibrate the poured concrete, and observe the rising height and overflow of the concrete in the exhaust port 12 in real time; Step 4: After the concrete rises to the inner side of the concrete vibrating port 11 and concrete slurry appears at the exhaust port 12, the concrete vibrating port cover plate 13 and the exhaust port cover plate 14 are installed at the concrete vibrating port 11 and the exhaust port 12 respectively; Step 5: Complete the concrete pouring construction of several subsequent pouring areas in sequence according to Steps 3 and 4 until the last pouring area at the top of the stairs; Step 6: During the concrete pouring construction in the final pouring area, observe the rising height of the concrete in the exhaust port 12, continue to vibrate until the concrete slurry overflows from the exhaust port 12, and the concrete rises to the bottom surface of the aluminum template inside the concrete vibration port 11, stop vibrating, and complete the pouring; install the concrete vibration port cover plate 13 and the exhaust port cover plate 14 to complete the concrete pouring construction of the entire staircase.

[0014] Preferably, Figure 3 As shown, a galvanized steel pipe 2 is manufactured, and the galvanized steel pipe 2 is fixed to the exhaust port 12 by means of pins. A flange 21 is provided on the top surface of the galvanized steel pipe 2, and the exhaust port cover plate 14 is fixed to the flange 21 by means of screws.

[0015] Preferably, the appearance of concrete slurry at the exhaust port 12 in step 4 refers to the appearance of concrete slurry in the galvanized steel pipe 2 , and the overflow of concrete slurry from the exhaust port 12 in step 6 refers to the overflow of concrete slurry from the galvanized steel pipe 2 .

[0016] Preferably, the caliber of the concrete vibration port 11 is 200×300 mm, and the diameter of the exhaust port 12 is 100 mm.

[0017] Preferably, Figure 4 As shown, a countersunk hole 3 is provided on the inner side of the long side of the concrete vibration port 11, a baffle 4 is provided around the concrete vibration port cover plate 13, a handle 5 is provided in the middle, a through hole 6 is provided in the middle of the long side baffle plate, and when the concrete vibration port cover plate 13 is installed on the concrete vibration port 11, it is fixed by inserting a pin into the through hole 6 and the countersunk hole 3.

[0018] Preferably, when pouring concrete in each pouring area, observe the rising height of the concrete, stop pouring the concrete when it reaches 10 to 20 mm below the concrete vibrating port and the exhaust port, start continuous vibration, and continue pouring after the concrete is vibrated and compacted.

[0019] This method adopts a new type of vibration and exhaust method to improve the density of concrete pouring of the staircase section constructed with aluminum formwork, effectively eliminate the bubbles generated during the pouring process, and with the auxiliary exhaust port setting, the air in the concrete can be better discharged to improve the quality of concrete molding; it effectively solves the problems of poor molding surface quality, poor appearance, and many bubbles after concrete construction and molding using aluminum formwork; at the same time, the BIM model is used to finalize the production and support of aluminum formwork, effectively shortening the construction period; saving the manpower and material costs caused by the subsequent repair of the concrete molding surface, which can significantly shorten the construction period and reduce the cost, thereby improving construction efficiency.

Claims

1. A staircase concrete pouring method based on BIM technology and aluminum formwork, characterized in that The steps include: Step 1: Make the staircase aluminum formwork according to the BIM model. The staircase aluminum formwork sets several pouring areas at intervals of several steps from bottom to top; Step 2: A concrete vibration port is opened in the center of the aluminum formwork at the top step of each pouring area, exhaust ports are opened on both sides of the concrete vibration port, and corresponding concrete vibration port cover plates and exhaust port cover plates are made; Step 3: Install the aluminum formwork of the stairs to the construction location of the stairs. The concrete pouring starts from the first pouring area at the bottom of the stairs. During the pouring process, insert a vibrating rod from the concrete vibrating port of the pouring area to vibrate the poured concrete, and observe the rising height of the concrete in the exhaust port and the overflow in real time; Step 4: After the concrete rises to the inner side of the concrete vibrating port and concrete slurry appears at the exhaust port, install the concrete vibrating port cover plate and the exhaust port cover plate at the concrete vibrating port and the exhaust port respectively; Step 5: Complete the concrete pouring construction of several subsequent pouring areas in sequence according to Steps 3 and 4 until the last pouring area at the top of the stairs; Step 6. During the concrete pouring construction in the final pouring area, observe the rising height of the concrete in the exhaust port, continue to vibrate until the concrete slurry overflows from the exhaust port, and the concrete rises to the bottom of the aluminum formwork inside the concrete vibration port, stop vibrating, and complete the pouring; install the concrete vibration port cover and the exhaust port cover to complete the concrete pouring construction of the entire staircase.

2. The method for pouring concrete for stairs based on BIM technology and aluminum formwork according to claim 1 is characterized in that: A galvanized steel pipe is manufactured and fixed at the exhaust port by means of pins. A flange is arranged on the top surface of the galvanized steel pipe and a cover plate of the exhaust port is fixed to the flange by means of screws.

3. The method for pouring concrete for stairs based on BIM technology and aluminum formwork according to claim 2 is characterized in that: The appearance of concrete slurry at the exhaust port in step 4 refers to the appearance of concrete slurry in the galvanized steel pipe, and the overflow of concrete slurry from the exhaust port in step 6 refers to the overflow of concrete slurry from the galvanized steel pipe.

4. The method for pouring concrete for stairs based on BIM technology and aluminum formwork according to claim 1 is characterized in that: The caliber of the concrete vibrating port is 200×300 mm, and the diameter of the exhaust port is 100 mm.

5. The method for pouring concrete for stairs based on BIM technology and aluminum formwork according to claim 1 is characterized in that: A countersunk hole is provided on the inner side of the long side of the concrete vibrating port, a baffle is provided around the concrete vibrating port cover plate, a handle is provided in the middle, a through hole is provided in the middle of the long side baffle plate, and when the concrete vibrating port cover plate is installed on the concrete vibrating port, it is fixed by inserting a pin into the through hole and the countersunk hole.

6. The method for pouring concrete for stairs based on BIM technology and aluminum formwork according to claim 1 is characterized in that: When pouring concrete in each pouring area, observe the rising height of the concrete. Stop pouring the concrete when it reaches 10 to 20 mm below the concrete vibration port and exhaust port, start continuous vibration, and continue pouring after the concrete is vibrated and compacted.

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