A BIM-based curved concrete roof construction method

Abstract

The present disclosure relates to a BIM-based curved concrete roof construction method. The method includes: establishing a roof BIM three-dimensional model; generating a pole array three-dimensional model and a formwork array three-dimensional model in the roof BIM three-dimensional model; performing interference detection on the pole array three-dimensional model and the formwork array three-dimensional model, and if interference occurs, adjusting the formwork and poles that interfere; performing physical construction of the pole array and the formwork array according to the adjusted pole array three-dimensional model and the formwork array three-dimensional model; and performing concrete pouring. The present application performs interference detection on the pole array three-dimensional model and the formwork array three-dimensional model in the roof BIM three-dimensional model, and if interference occurs, adjusting the formwork and poles that interfere. In this way, rework caused by interference during the construction process can be avoided. It is conducive to improving construction efficiency.

Description

Technical Field

[0001] The present disclosure relates to the field of roof technology, and in particular to a BIM-based curved concrete roof construction method. Background Art

[0002] In recent years, with the development of the construction industry, the proportion of public buildings has become increasingly higher, and various special and complex structures have emerged one after another, especially the roofs of public buildings. There are more and more curved roofs, and even some super-large inclination angles, such as a slope roof of nearly 90°. However, due to the large inclination angle of the roof and the large curvature of the curved surface, it is difficult to support the formwork and cast the roof structure. Summary of the invention

[0003] In order to overcome the problems existing in the related art, the present disclosure provides a BIM-based curved concrete roof construction method to solve the above problems.

[0004] According to a first aspect of an embodiment of the present disclosure, a BIM-based curved concrete roof construction method is provided, the method comprising:

[0005] Establish roof BIM 3D model;

[0006] In the roof BIM three-dimensional model, a three-dimensional model of a pole array and a three-dimensional model of a formwork array are generated;

[0007] Perform interference detection on the three-dimensional model of the pole array and the three-dimensional model of the formwork array, and if interference occurs, adjust the formwork and poles that interfere;

[0008] Performing physical construction of the pole array and the formwork array according to the adjusted three-dimensional model of the pole array and the three-dimensional model of the formwork array;

[0009] Carry out concrete pouring.

[0010] In one embodiment, after physically constructing the pole array and the formwork array according to the adjusted three-dimensional model of the pole array and the three-dimensional model of the formwork array, and before pouring concrete, the method further includes:

[0011] A damping steel wire mesh is arranged according to the inclination angle of the roof.

[0012] In one embodiment, the damping steel wire mesh is arranged according to the roof inclination angle, including:

[0013] When the roof inclination angle is greater than a first angle threshold and less than a second angle threshold, damping wire meshes are arranged at predetermined intervals;

[0014] When the roof inclination angle is greater than or equal to a second angle threshold, the damping wire mesh.

[0015] In one embodiment, in the roof BIM three-dimensional model, a three-dimensional model of a pole array and a three-dimensional model of a formwork array are generated, including:

[0016] Determine the size of the prefabricated formwork; the size of the formwork includes: formwork width and formwork height;

[0017] Dividing the roof BIM three-dimensional model into multiple blocks according to predetermined elevations and control lines;

[0018] Wherein, the distance between any two adjacent elevations is equal to the formwork height;

[0019] The distance between any two adjacent control lines is equal to the formwork width;

[0020] Build the roof base plate model;

[0021] Projecting the control line onto the base plate model, dividing the roof base plate model into a plurality of base plate areas;

[0022] A three-dimensional model of a rod array is generated in the bottom plate area.

[0023] In one embodiment, a single formwork in the formwork array comprises: a flat bottom plate, a bracket and a curved plate;

[0024] The bracket is arranged on the flat bottom plate and is used to support the curved plate;

[0025] The curvature of the curved plate is equal to the curvature of the roof;

[0026] When the formwork is placed, the arc-shaped plate is parallel to the longitudinal beam of the roof; and the flat bottom plate is parallel to the bottom plate of the roof.

[0027] In one embodiment, the bracket includes: a first side, a second side, and a third side;

[0028] The first side is disposed on the flat bottom plate;

[0029] The second side is perpendicular to the first side; the first end of the second side is connected to the first end of the first side;

[0030] The first end of the third side is connected to the second end of the first side, and the second end of the third side is connected to the second end of the second side;

[0031] The curvature of the third side is equal to the curvature of the arc-shaped plate;

[0032] The third side contacts the arc-shaped plate and is used for supporting the arc-shaped plate.

[0033] In one embodiment, the bracket further comprises a plurality of diagonal bracing edges;

[0034] The plurality of diagonal support edges are arranged in a closed area surrounded by the first edge, the second edge and the third edge;

[0035] The plurality of diagonal supporting edges are used to support the third edge.

[0036] In one embodiment, the plurality of diagonal bracing edges include:

[0037] A first oblique bracing edge, wherein a first end of the first oblique bracing edge is connected to a first end of the first edge, a second end of the first oblique bracing edge is connected to the third edge, and the first oblique bracing edge is perpendicular to the third edge;

[0038] A second oblique bracing edge, wherein a first end of the second oblique bracing edge is connected to the third edge, and a connection position is close to a position of a second end of the first oblique bracing edge;

[0039] The second end of the second oblique support edge is connected to the middle position of the first edge;

[0040] A third oblique bracing edge, wherein a first end of the third oblique bracing edge is connected to the third edge, and a second end of the third oblique bracing edge is connected to the first edge, and a connection position is a middle position of the first edge.

[0041] The technical solution provided by the embodiments of the present disclosure may have the following beneficial effects:

[0042] The above technical solution of the present application performs interference detection on the three-dimensional model of the pole array and the three-dimensional model of the formwork array in the roof BIM three-dimensional model. If interference occurs, the formwork and poles that interfere are adjusted. In this way, rework caused by interference during the construction process can be avoided, which is conducive to improving construction efficiency.

[0043] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and, together with the description, serve to explain the principles of the present disclosure.

[0045] Figure 1 is a flow chart of a BIM-based curved concrete roof construction method according to an exemplary embodiment;

[0046] Figure 2 A BIM three-dimensional model of a curved concrete roof is shown according to an exemplary embodiment;

[0047] Figure 3 is a structural schematic diagram of a formwork according to an exemplary embodiment;

[0048] Figure 4 is a schematic structural diagram of a bracket according to an exemplary embodiment;

[0049] Figure 5 is a schematic structural diagram of another bracket according to an exemplary embodiment. DETAILED DESCRIPTION

[0050] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present disclosure. Instead, they are merely examples of devices and methods consistent with some aspects of the present disclosure as detailed in the appended claims.

[0051] A BIM-based curved concrete roof construction method, see attached Figure 1 A flow chart of a BIM-based curved concrete roof construction method is shown, the method comprising the following steps:

[0052] In step S102, a roof BIM three-dimensional model is established.

[0053] Specifically, a three-dimensional model of the roof can be generated in the BIM software. Alternatively, other three-dimensional drawing software can be used to generate a three-dimensional model, and then the model can be imported into the BIM software.

[0054] In step S104, a three-dimensional model of a pole array and a three-dimensional model of a formwork array are generated in the roof BIM three-dimensional model.

[0055] In this embodiment, a three-dimensional model of the formwork array can be generated according to the positions of the horizontal beams and vertical beams in the roof BIM three-dimensional model. The formwork array includes multiple rows, each row is parallel to the horizontal beams in the BIM three-dimensional model, and each row includes multiple adjacent formworks.

[0056] In step S106, interference detection is performed on the three-dimensional model of the pole array and the three-dimensional model of the formwork array. If interference occurs, the interfering formwork and poles are adjusted.

[0057] In this embodiment, the interference detection command in the BIM software can be used to perform interference detection on the above-mentioned three-dimensional model of the vertical pole array and the three-dimensional model of the formwork array. For the formwork and vertical poles that interfere, the size can be adjusted as described above.

[0058] In step S108, the physical construction of the pole array and the formwork array is performed according to the adjusted three-dimensional model of the pole array and the three-dimensional model of the formwork array.

[0059] In this embodiment, after the above-mentioned three-dimensional model of the pole array and the three-dimensional model of the formwork array are adjusted, physical construction is performed according to the adjusted three-dimensional model of the pole array and the three-dimensional model of the formwork array. In the specific construction process, the pole array can be arranged first, wherein the length of each pole refers to the size in the BIM three-dimensional model. After the pole array is arranged, the formwork array is arranged on the upper part of the pole array.

[0060] In step S110, concrete pouring is performed.

[0061] The above technical solution of the present application performs interference detection on the three-dimensional model of the pole array and the three-dimensional model of the formwork array in the roof BIM three-dimensional model. If interference occurs, the formwork and poles that interfere are adjusted. In this way, rework caused by interference during the construction process can be avoided, which is conducive to improving construction efficiency.

[0062] In one embodiment, after physically constructing the pole array and the formwork array according to the adjusted three-dimensional model of the pole array and the three-dimensional model of the formwork array, before pouring concrete,

[0063] A damping steel wire mesh is arranged according to the inclination angle of the roof.

[0064] In this embodiment, the damping steel mesh can be set according to the size of the inclination angle of the roof. If the inclination angle is relatively small, a section of damping steel mesh can be set at a predetermined distance. If the inclination angle is relatively large, the damping steel mesh needs to be laid throughout.

[0065] In one embodiment, setting the damping steel wire mesh according to the roof inclination angle may further include the following steps:

[0066] When the roof inclination angle is greater than the first angle threshold and less than the second angle threshold, damping steel mesh is set at predetermined intervals on the roof slope; when the roof inclination angle is greater than or equal to the second angle threshold, the damping steel mesh is laid all over the roof slope.

[0067] In this embodiment, the first angle threshold can be set to 30 degrees, and the second angle threshold can be set to 60 degrees. The predetermined distance can be 5 meters. The damping wire mesh is used to prevent the concrete from sliding down. When the roof tilt angle is relatively large, the damping wire mesh needs to be laid throughout to prevent the concrete from sliding down. When the roof tilt angle is relatively small, the damping wire mesh can be arranged at intervals.

[0068] In one embodiment, in the roof BIM three-dimensional model, generating a three-dimensional model of a pole array and a three-dimensional model of a formwork array may further include the following steps:

[0069] Determine the size of the prefabricated formwork; the size of the formwork includes: formwork width and formwork height;

[0070] Dividing the roof BIM three-dimensional model into multiple blocks according to predetermined elevations and control lines;

[0071] Wherein, the distance between any two adjacent elevations is equal to the formwork height;

[0072] The distance between any two adjacent control lines is equal to the formwork width;

[0073] Build the roof base plate model;

[0074] Projecting the control line onto the base plate model, dividing the roof base plate model into a plurality of base plate areas;

[0075] A three-dimensional model of a rod array is generated in the bottom plate area.

[0076] In this embodiment, see the attached Figure 2 As shown, three layers of formwork are provided, and a vertical pole array is provided at the bottom of each layer of formwork. The height of each formwork is the same, the width of each formwork is the same, and the arc plate of each formwork is parallel to the longitudinal beam 21.

[0077] In one embodiment, see the attached Figure 3 , a single formwork in the formwork array includes: a flat bottom plate 31, a bracket 32 ​​and an arc plate 33;

[0078] The bracket 32 ​​is disposed on the flat bottom plate 31 and is used to support the arc plate 33;

[0079] The curvature of the curved plate 33 is equal to the curvature of the roof;

[0080] When the formwork is installed, the arc-shaped plate 33 is parallel to the longitudinal beam of the roof; the flat bottom plate 31 is parallel to the bottom plate of the roof.

[0081] The above technical solution of the present application sets a formwork, and the formwork is provided with an arc-shaped plate, and the curvature of the arc-shaped plate is equal to the curvature of the roof. In this way, a large number of formworks can be used, such as Figure 2 As shown in , the setting of the formwork makes the construction of the curved roof easier and smoother, which is beneficial to improving the efficiency of the construction of the curved roof.

[0082] In one embodiment, see Figure 3 and Figure 4, the bracket includes: a first side 321, a second side 322, and a third side 323;

[0083] The first edge 321 is disposed on the flat bottom plate;

[0084] The second side 322 is perpendicular to the first side 321; the first end of the second side 322 is connected to the first end of the first side 321;

[0085] The first end of the third side 323 is connected to the second end of the first side 321 , and the second end of the third side 323 is connected to the second end of the second side 322 ;

[0086] The curvature of the third side 323 is equal to the curvature of the arc-shaped plate 33;

[0087] The third edge 323 contacts the arc plate 33 and is used to support the arc plate 33 .

[0088] In one embodiment, the bracket further comprises a plurality of diagonal bracing edges;

[0089] The plurality of diagonal support edges are arranged in a closed area surrounded by the first edge, the second edge and the third edge;

[0090] The plurality of diagonal supporting edges are used to support the third edge.

[0091] In one embodiment, see the attached Figure 5 , the plurality of diagonal bracing edges may include:

[0092] A first oblique supporting edge 324, wherein a first end of the first oblique supporting edge 324 is connected to a first end of the first edge, a second end of the first oblique supporting edge 324 is connected to the third edge, and the first oblique supporting edge 324 is perpendicular to the third edge;

[0093] A second oblique supporting edge 325, wherein a first end of the second oblique supporting edge 325 is connected to the third edge, and a connection position is close to a second end of the first oblique supporting edge 324;

[0094] The second end of the second oblique support edge 325 is connected to the middle position of the first edge;

[0095] A third oblique supporting edge 326 , wherein a first end of the third oblique supporting edge 326 is connected to the third edge, and a second end of the third oblique supporting edge 326 is connected to the first edge, and a connection position is a middle position of the first edge.

[0096] The above technical solution of the present application is beneficial to improve the force stability of the support due to the provision of multiple inclined support edges, thereby improving the stability of the formwork.

[0097] Those skilled in the art will readily appreciate other embodiments of the present disclosure after considering the specification and practicing the present disclosure. This application is intended to cover any variations, uses or adaptations of the present disclosure, which follow the general principles of the present disclosure and include common knowledge or customary technical means in the art that are not disclosed in the present disclosure. The specification and examples are to be considered as exemplary only, and the true scope and spirit of the present disclosure are indicated by the following claims.

[0098] It should be understood that the present disclosure is not limited to the exact structures that have been described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A BIM-based curved concrete roof construction method, characterized in that: include: Establish roof BIM 3D model; In the roof BIM three-dimensional model, a three-dimensional model of a pole array and a three-dimensional model of a formwork array are generated; Perform interference detection on the three-dimensional model of the pole array and the three-dimensional model of the formwork array, and if interference occurs, adjust the formwork and poles that interfere; Performing physical construction of the pole array and the formwork array according to the adjusted three-dimensional model of the pole array and the three-dimensional model of the formwork array; Carry out concrete pouring; In the roof BIM three-dimensional model, a three-dimensional model of a pole array and a three-dimensional model of a formwork array are generated, including: Generate a three-dimensional model of a formwork array according to the positions of the horizontal beams and vertical beams in the three-dimensional BIM model of the roof, wherein the formwork array includes a plurality of rows, each row is parallel to the horizontal beams in the three-dimensional BIM model, and each row includes a plurality of adjacent formworks; Determine the size of the prefabricated formwork; the size of the formwork includes: formwork width and formwork height; A vertical pole array is arranged at the bottom of each layer's formwork, each formwork has the same height, each formwork has the same width, and each formwork's curved plate is parallel to the longitudinal beam; Dividing the roof BIM three-dimensional model into multiple blocks according to predetermined elevations and control lines; Wherein, the distance between any two adjacent elevations is equal to the formwork height; The distance between any two adjacent control lines is equal to the formwork width; Build the roof base plate model; Projecting the control line onto the base plate model, dividing the roof base plate model into a plurality of base plate areas; The bottom plate area generates a three-dimensional model of a pole array; A single formwork in the formwork array comprises: a flat bottom plate, a bracket and a curved plate; The bracket is arranged on the flat bottom plate and is used to support the curved plate; The curvature of the curved plate is equal to the curvature of the roof; When the formwork is installed, the arc-shaped plate is parallel to the longitudinal beam of the roof; the flat bottom plate is parallel to the bottom plate of the roof; The bracket comprises: a first side, a second side, and a third side; The first side is disposed on the flat bottom plate; The second side is perpendicular to the first side; the first end of the second side is connected to the first end of the first side; The first end of the third side is connected to the second end of the first side, and the second end of the third side is connected to the second end of the second side; The curvature of the third side is equal to the curvature of the arc-shaped plate; The third side is in contact with the arc-shaped plate and is used to support the arc-shaped plate; The bracket also includes a plurality of diagonal bracing edges; The plurality of diagonal support edges are arranged in a closed area surrounded by the first edge, the second edge and the third edge; The plurality of diagonal support edges are used to support the third edge; The plurality of diagonal bracing edges include: A first oblique bracing edge, wherein a first end of the first oblique bracing edge is connected to a first end of the first edge, a second end of the first oblique bracing edge is connected to the third edge, and the first oblique bracing edge is perpendicular to the third edge; A second oblique bracing edge, wherein a first end of the second oblique bracing edge is connected to the third edge, and a connection position is close to a position of a second end of the first oblique bracing edge; The second end of the second oblique support edge is connected to the middle position of the first edge; A third oblique bracing edge, wherein a first end of the third oblique bracing edge is connected to the third edge, and a second end of the third oblique bracing edge is connected to the first edge, and a connection position is a middle position of the first edge.

2. The curved concrete roof construction method according to claim 1, characterized in that: After physically constructing the pole array and the formwork array according to the adjusted three-dimensional model of the pole array and the three-dimensional model of the formwork array, and before pouring concrete, the method further includes: A damping steel wire mesh is arranged according to the inclination angle of the roof.

3. The curved concrete roof construction method according to claim 2, characterized in that: The damping steel wire mesh is arranged according to the roof inclination angle, including: When the roof inclination angle is greater than a first angle threshold and less than a second angle threshold, damping wire meshes are arranged at predetermined intervals; When the roof inclination angle is greater than or equal to a second angle threshold, the damping wire mesh.

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