Construction method for improving construction quality of embedded part and template based on BIM (Building Information Modeling)

Abstract

The invention relates to a BIM (Building Information Modeling)-based construction method for improving the construction quality of an embedded part and a template, which comprises the following steps of: establishing a three-dimensional model of a concrete structure, and determining the position of a steel embedded part and the position of a structural main reinforcement in the three-dimensional model; the additional steel bars are adopted for positioning, the additional bars are welded to the steel embedded part and fixed to the structural main bars in a binding mode, and stable and fixed connection of the steel embedded part can be achieved. Meanwhile, the formwork and the steel embedded part are connected in a fastened mode through the drill tail wire, it is guaranteed that formwork expansion is avoided during pouring, the embedded part is flush with a formed structural plane after formwork removal, secondary chiseling is avoided, the drill tail wire is fixed without limitation of construction conditions, a portable rechargeable electric drill can be adopted for completing fixation without precise positioning, operation is easy, and the construction cost is low; and the overall construction quality can be comprehensively improved.

Description

Technical Field

[0001] The present invention relates to a concrete structure construction method, in particular to a BIM-based construction method for improving the construction quality of embedded parts and formwork. Background Art

[0002] In municipal integrated pipe corridor projects, functional requirements necessitate the installation of a variety of media pipelines. Pipelines with larger diameters or loads are often installed using floor-standing supports or pre-supported piers. To maximize space utilization, most media pipelines are wall-mounted or suspended. This installation method requires pre-installed steel embedded components or later installation into the walls or ceiling of the integrated pipe corridor using expansion bolts or chemical bolts to facilitate subsequent bracket welding. To ensure the long-term stability of embedded components, pre-installed steel embedded components are often used in integrated pipe corridors.

[0003] Steel embedded parts need to be installed after the reinforcement of the corridor is tied. The embedded parts are welded in the form of steel plates + anchor hooks, and the exposed surface of the steel plates needs to be flush with the outside of the corridor's formed body. The medium pipelines of the integrated corridor are mostly installed continuously, so the overall number of embedded parts is large and the installation accuracy and quality requirements are high. Conventional construction embedded parts are mostly installed by fixing the embedded parts and steel bars with welding and then sealing the formwork. This installation method makes the installation size of the embedded parts easy to control, but if there is a deviation in the formwork installation or the formwork expands during the pouring process, it is very easy to cause the embedded parts to be lower than the actual formed wall. The embedded parts need to be manually chiseled out a second time, and the finished product has a poor appearance. In addition, the current standards and specifications strictly prohibit the welding of embedded parts to the main reinforcement of the structure. Fixing the embedded parts by tying them cannot effectively fix the embedded parts. In order to ensure the construction quality of embedded parts, bolts are often used to fix the formwork and embedded parts during construction. This can effectively control the flushness of the embedded parts with the structural surface, but it requires precise bolt hole positioning and the cooperation of multiple people inside and outside to implement it. If one side of the wall has been molded, the wall reinforcement and tension bolts are dense, making it impossible to operate on both sides, bolt positioning cannot be achieved. Summary of the Invention

[0004] The purpose of the present invention is to provide a BIM-based construction method for improving the construction quality of embedded parts and formwork, so as to solve the problems that the embedded parts cannot be effectively fixed in the current construction method and the embedded parts are not flush with the structural surface.

[0005] The present invention is achieved as follows: a construction method for improving the construction quality of embedded parts and templates based on BIM, comprising the following steps.

[0006] a. Create a three-dimensional model of the concrete structure and determine the positions of the steel embedded parts and the main structural reinforcement in the three-dimensional model; the steel embedded parts include steel plates and anchor hooks located at the four corners of the inner side of the steel plates, and the main structural reinforcement includes longitudinal main structural reinforcement and horizontal main structural reinforcement.

[0007] b. Determine the position and size of the additional reinforcement according to the relative position of the steel embedded parts and the main structural reinforcement. The additional reinforcement includes vertical additional reinforcement and transverse additional reinforcement, which are respectively connected to the anchor hooks.

[0008] c. Make additional reinforcement according to the position and size of the additional reinforcement determined in step b, and mark the welding points on the anchor hooks of the steel embedded parts and on the additional reinforcement.

[0009] d. After the construction of the main reinforcement of the structure is accepted, the steel embedded parts are positioned and laid out.

[0010] e. Place the steel embedded parts according to the positioning line position points and use temporary fixing fixtures for positioning.

[0011] f. After the size and position of the steel embedded parts are calibrated and qualified, weld the vertical additional reinforcement and transverse additional reinforcement on the anchor hook of the steel embedded parts according to the points determined in step c.

[0012] g. The transverse additional reinforcement is fixed to the horizontal main reinforcement of the structure with wire binding, and the vertical additional reinforcement is fixed to the longitudinal main reinforcement of the structure with wire binding. All steel embedded parts are installed in this way.

[0013] h. After the steel embedded parts are installed, the template construction is carried out. The template is laid in sequence. The template at the embedded parts position is tightly fitted with the embedded parts. An electric drill is used on the outside of the template to drill the drill wire into the template and the steel plate of the steel embedded parts to connect the steel embedded parts and the template as one.

[0014] i. After the concrete is poured and before the formwork is removed, use an electric drill to remove the drill thread and then remove the formwork.

[0015] Furthermore, for the installation of the overall formwork, tension bolts are set around the steel embedded parts for positioning. After the formwork is installed over a large area, a steel bar scanner or secondary layout is used to initially position the steel embedded parts, and then the drill screw is drilled into the steel plates of the formwork and steel embedded parts.

[0016] Furthermore, a steel bar scanner is used or secondary layout is performed to determine the positions of the edges of the steel plate around the steel embedded part, and drill tail screw drilling construction is performed within the positions of the edges of the steel plate around the steel embedded part.

[0017] Furthermore, the additional reinforcement is arranged close to the steel plate and located on the inner side of the main structural reinforcement, and the length of the additional reinforcement on one side is greater than the distance between the two outermost main structural reinforcements of the steel plate.

[0018] Furthermore, in step e, the height, spatial position and size, and vertical and horizontal flatness of the steel embedded parts are calibrated.

[0019] Furthermore, each steel embedded part is provided with no less than 9 groups of drill threads, the number of which is determined according to the size of the steel plate of the embedded part, and the drill threads are distributed around and in the middle of the steel plate.

[0020] Furthermore, no less than 9 groups of drill threads are provided on each steel embedded part and are evenly distributed in a matrix.

[0021] The present invention uses additional steel bars for positioning. The additional bars are welded to the steel embedded parts and fixed to the main structural bars by binding, which can achieve a stable and fixed connection of the steel embedded parts. At the same time, drill screws are used to fasten the template and the steel embedded parts to ensure that the mold will not expand during pouring. After the mold is removed, the embedded parts are flush with the formed structural surface, avoiding secondary chiseling. The drill screw fixation is not restricted by construction conditions and can be completed with a portable rechargeable electric drill without precise positioning. It is simple to operate, has low construction costs, and can comprehensively improve the overall construction quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a three-dimensional structural diagram of the present invention.

[0023] Figure 2 It is a front view of the present invention.

[0024] Figure 3 yes Figure 2 Right view of .

[0025] Figure 4 yes Figure 2 Top view of .

[0026] In the figure: 1. Steel embedded parts; 2. Formwork; 3. Structural longitudinal main reinforcement; 4. Structural horizontal main reinforcement; 5. Vertical additional reinforcement; 6. Horizontal additional reinforcement; 7. Drill thread; 1-1. Steel plate; 1-2. Anchor hook. DETAILED DESCRIPTION

[0027] The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0028] In the description of the present invention, it should be noted that terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" are used to indicate positions or locations based on the positions or locations shown in the accompanying drawings. These terms are used solely to facilitate the description of the present invention and to simplify the description. They are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, terms such as "first," "second," and "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0029] like Figures 1 to 4 As shown, the present invention is a BIM-based construction method for improving the construction quality of embedded parts and formwork 2 of concrete structures. The specific steps of the method are described by taking the construction of embedded parts and formwork 2 of a municipal integrated pipeline corridor as an example.

[0030] a. Use BIM software to create a 3D model of the concrete structure of the municipal integrated pipeline corridor project. Determine the position of the steel embedded parts 1 and the main structural reinforcement in the 3D model according to the design requirements.

[0031] The steel embedded component 1 includes a steel plate 1-1 and anchor hooks 1-2 located at the four corners of the inner side of the steel plate 1-1. The main structural reinforcement includes longitudinal structural reinforcement 3 and horizontal structural reinforcement 4. The 3D model clearly shows the relative position of each steel embedded component 1 and the main structural reinforcement.

[0032] b. In the three-dimensional model, the position and size of the additional reinforcement are determined according to the relative position of the steel embedded part 1 and the main structural reinforcement. The additional reinforcement includes vertical additional reinforcement 5 and transverse additional reinforcement 6. The vertical additional reinforcement 5 and transverse additional reinforcement 6 are connected to the anchor hooks 1-2 respectively.

[0033] The additional reinforcement is placed close to the steel plate 1-1 and on the inner side of the main structural reinforcement. It must not be placed on the outer side to encroach on the protective layer. The length of the single-sided additional reinforcement is greater than the distance between the two outermost main structural reinforcements of the steel plate 1-1. For the vertical additional reinforcement 5, its length must be greater than the distance between the two outer horizontal main structural reinforcements 4 of the steel plate 1-1. In this way, the middle of the vertical additional reinforcement 5 can be connected to the anchor hook 1-2, and the two ends of the vertical additional reinforcement 5 can overlap the two horizontal main structural reinforcements 4. For the horizontal additional reinforcement, its length must be greater than the distance between the two outer vertical main structural reinforcements 3 of the steel plate 1-1. In this way, the middle of the horizontal additional reinforcement can be connected to the anchor hook 1-2, and the two ends of the horizontal additional reinforcement can overlap the two longitudinal main structural reinforcements 3.

[0034] After determining the length of the additional reinforcement, determine the connection point between the additional reinforcement and the anchor hook 1-2. This location can be determined by the distance between the connection point and the end of the additional reinforcement.

[0035] c. Make additional reinforcement according to the position and size of the additional reinforcement determined in step b, and mark the welding points on the anchor hooks 1-2 of the steel embedded part 1 and the additional reinforcement according to the position of the connecting belt determined in the previous step.

[0036] d. After the main reinforcement construction is inspected and accepted, the steel embedded parts 1 are positioned and laid out, including the elevation and spatial position of the steel embedded parts 1.

[0037] e. Place the steel embedded part 1 according to the position point of the positioning line, use a temporary fixing fixture to position it, and calibrate the height, spatial position size, vertical and horizontal flatness of the steel embedded part.

[0038] f. After the size and position of the steel embedded part 1 are calibrated and qualified, the vertical additional reinforcement 5 and the transverse additional reinforcement 6 are welded on the anchor hook 1-2 of the steel embedded part 1 according to the points determined in step c.

[0039] g. The transverse additional reinforcement 6 is fixed to the horizontal main reinforcement 4 of the structure by binding wire, and the vertical additional reinforcement 5 is fixed to the longitudinal main reinforcement 3 of the structure by binding wire. All steel embedded parts 1 are installed in this way.

[0040] h. After the steel embedded parts 1 are installed, they are self-inspected and accepted. If qualified, mold closing construction is carried out. The template 2 is laid in order. The template 2 and the embedded parts are tightly fitted at the embedded parts. An electric drill is used to drill the drill screw 7 into the template 2 and the steel plate 1-1 of the steel embedded parts 1 on the outside of the template 2, so that the steel embedded parts 1 and the template 2 are connected as a whole.

[0041] The tail of the drill screw 7 is a drill tail or a pointed tail, which can be used to drill, tap and lock directly on materials such as the steel plate 1-1. The fixation of the drill screw 7 is not restricted by construction conditions and can be completed using a portable rechargeable electric drill without precise positioning.

[0042] For the installation of the overall formwork 2, tension bolts are set around the steel embedded parts 1 for positioning. After the formwork 2 is installed over a large area, the position of the steel embedded parts 1 needs to be determined first due to the obstruction of the formwork 2. A steel bar scanner or secondary layout is used to initially position the steel embedded parts 1, and then the drill screw 7 is drilled into the steel plate 1-1 of the formwork 2 and the steel embedded parts 1.

[0043] A steel bar scanner or secondary layout is performed to determine the positions of the edges of the steel plate 1 - 1 around the steel embedded part 1 , and a drill screw 7 is drilled into the positions of the edges of the steel plate 1 - 1 around the steel embedded part 1 .

[0044] At least 9 groups of drill threads 7 are provided on each steel embedded part 1 , and the number is determined according to the size of the steel embedded part plate 1 - 1 . The drill threads 7 are distributed around and in the middle of the steel plate 1 - 1 .

[0045] There are no less than 9 groups of drill threads 7 on each steel embedded part 1 and they are evenly distributed in a matrix. The number of drill threads 7 can be appropriately increased according to the size of the steel embedded part 1 .

[0046] i. Before the concrete is poured and the formwork 2 is removed, use an electric drill to withdraw the drill screw 7 and then remove the formwork 2.

[0047] Since the steel embedded part 1 is firmly fixed by additional ribs, the position of the embedded part can be prevented from moving during construction. At the same time, the template 2 is fastened to the steel plate 1-1 of the steel embedded part 1 by the drill screw 7, which can ensure that the steel embedded part 1 is flush with the formed structural surface after demolding.

[0048] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A construction method for improving the construction quality of embedded parts and templates based on BIM, characterized in that: The following steps are involved: a. Establish a three-dimensional model of the concrete structure and determine the position of the steel embedded parts and the position of the main reinforcement in the three-dimensional model; the steel embedded parts include steel plates and anchor hooks located at the four corners of the inner side of the steel plate, and the main reinforcement includes longitudinal main reinforcement and horizontal main reinforcement; b. Determine the position and size of the additional reinforcement according to the relative position of the steel embedded parts and the main reinforcement of the structure. The additional reinforcement includes additional vertical reinforcement and additional transverse reinforcement, and the additional vertical reinforcement and additional transverse reinforcement are connected to the anchor hooks; c. Make additional reinforcement according to the position and size of the additional reinforcement determined in step b, and mark the welding points on the anchor hooks of the steel embedded parts and the additional reinforcement; d. After the construction and acceptance of the main reinforcement of the structure, the steel embedded parts are positioned and laid out; e. Place the steel embedded parts according to the positioning line and use temporary fixing fixtures to position them; f. After the size and position of the steel embedded parts are calibrated and qualified, weld the vertical additional reinforcement and the transverse additional reinforcement on the anchor hook of the steel embedded parts according to the points determined in step c; g. The transverse additional reinforcement is fixed to the horizontal main reinforcement of the structure with wire ties, and the vertical additional reinforcement is fixed to the longitudinal main reinforcement of the structure with wire ties. All steel embedded parts are installed in the same way; h. After the steel embedded parts are installed, the template construction is carried out. The template is laid in order. The template at the embedded part position is tightly fitted with the embedded parts. An electric drill is used on the outside of the template to drill the drill screw into the template and the steel plate of the steel embedded parts to connect the steel embedded parts and the template as one; i. After the concrete is poured and before the formwork is removed, use an electric drill to remove the drill thread and then remove the formwork.

2. The BIM-based construction method for improving the construction quality of embedded parts and formwork according to claim 1 is characterized in that: For the installation of the entire formwork, tension bolts are set around the steel embedded parts for positioning. After the formwork is installed over a large area, a steel bar scanner or secondary layout is used to initially position the steel embedded parts, and then the drill screw is drilled into the steel plates of the formwork and steel embedded parts.

3. The BIM-based construction method for improving the construction quality of embedded parts and formwork according to claim 2 is characterized in that: Use a rebar scanner or perform secondary layout to determine the position of the edges of the steel plates around the steel embedded parts, and perform drill tail screw drilling construction within the edge positions of the steel plates around the steel embedded parts.

4. The BIM-based construction method for improving the construction quality of embedded parts and formwork according to claim 1 is characterized in that: The additional reinforcement is arranged close to the steel plate and located on the inner side of the main structural reinforcement. The length of the additional reinforcement on one side is greater than the distance between the two outermost main structural reinforcements of the steel plate.

5. The BIM-based construction method for improving the construction quality of embedded parts and formwork according to claim 1 is characterized in that: In step e, the height, spatial position, and vertical and horizontal flatness of the steel embedded parts are calibrated.

6. The BIM-based construction method for improving the construction quality of embedded parts and formwork according to claim 1 is characterized in that: The number of drill threads is determined according to the size of the steel embedded parts and plates, and the drill threads are distributed around and in the middle of the steel plates.

7. The BIM-based construction method for improving the construction quality of embedded parts and formwork according to claim 6 is characterized in that: There are no less than 9 groups of drill threads on each steel embedded part and they are evenly distributed in a matrix.

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