Curved roof construction method

Abstract

The invention provides a curved roof construction method. The curved roof construction method comprises the following steps: S1, constructing a visual model of a curved roof; s2, determining nodes and splitting segments in the visual model of the curved roof; s3, determining construction data according to the nodes and the segments; the construction data comprises the elevation and coordinate of a column top, the elevation and coordinate of the end part of a beam, and data information of different sections; and S4, performing construction according to the construction data. By means of the method, it can be ensured that the curved surface connected according to the elevation and coordinates of the column and the beam is smooth and free of protrusions.

Description

Technical Field

[0001] The invention relates to the field of construction, and in particular to a curved roof construction method. Background Art

[0002] The shape of the special-shaped hyperbolic roof is irregular, and it is difficult to locate the nodes and divide the segments. For buildings with high aesthetic requirements, how to ensure the smooth shape of the roof becomes a major difficulty in construction and deepening.

[0003] In the past, the deepening of curved special-shaped steel structures was done by inferring other nodes through the positioning of columns and main beams, resulting in the inability to fully guarantee the curved shape and the existence of conflicts with other ancillary structures.

[0004] Therefore, in order to solve the above technical problems, it is urgent to propose a new technical means. Summary of the invention

[0005] In order to ensure smooth connection of the roof curved surface, the present invention proposes a curved roof construction method.

[0006] The present invention provides a curved roof construction method, comprising the following steps:

[0007] S1. Construct a visual model of a curved roof;

[0008] S2. Determine nodes and split segments in the visual model of the curved roof;

[0009] S3. Determine construction data according to nodes and segments;

[0010] The construction data includes: the elevation and coordinates of the top of the column, the elevation and coordinates of the end of the beam, and data information of different sections;

[0011] S4. Carry out construction according to the construction data.

[0012] Furthermore, the elevation and coordinates of the column top are obtained by the following method:

[0013] The elevation of the column top is calculated by the following formula:

[0014]

[0015] Among them, H Z,i represents the elevation of the top of the i-th column, H K,j represents the elevation of the surface node corresponding to the top of the i-th column, h t,i represents the height of segment t under the i-th column, and T represents the total number of segments under the i-th column;

[0016] The coordinates of the column top are equal to the coordinates of the column top surface nodes.

[0017] Further, the elevation and coordinates of the end of the beam are obtained by the following method:

[0018] The end elevation of the beam is calculated by the following formula:

[0019]

[0020] Among them, H L,j,n represents the elevation of the nth end of the jth beam, H K,j,n represents the elevation of the surface node corresponding to the nth end of the jth beam, h d,j represents the height of the dth segment under the jth beam, and D represents the total number of segments under the jth beam;

[0021] The coordinates of the ends of the beam are equal to the coordinates of the surface nodes corresponding to the ends of the beam.

[0022] Furthermore, the data information of the segment includes at least: the category, number, coordinates, elevation, material and model specifications of the component.

[0023] Furthermore, the nodes and segments are determined by the following method:

[0024] Divide the center line of the surface into m line segments evenly, and obtain m corresponding surfaces;

[0025] The perpendicular plane of the line segment is used as the positioning surface to obtain the positioning surfaces of m curved surfaces;

[0026] Divide the intersection line segment of the curved surface and the corresponding positioning surface into e segments on average, and use the endpoints of each segment as nodes, where e is an integer greater than or equal to 4;

[0027] Determine whether the segment meets the preset requirements. If so, output the node number, coordinates and elevation, as well as the segment data information; if not, divide the intersection segment of the curved surface and the corresponding positioning surface into e+1 segments on average, and use the endpoints of each segment as nodes to re-determine whether the segment meets the preset requirements until the segment meets the preset requirements.

[0028] Furthermore, the preset requirement is as follows: in each segment evenly divided by the current intersection segment, there is a type of component whose percentage of the total number of components is greater than or equal to a set threshold, and the component type with a percentage greater than or equal to the set threshold is taken as the type of the segment.

[0029] Beneficial effects of the present invention: The present invention determines nodes and segments through a curved roof model, and can infer the elevations and coordinates of columns and beams while ensuring smooth connection of the curved surface, so that a smooth curved surface can be formed according to the elevations and coordinates of the columns and beams. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a flow chart of the present invention.

[0031] Figure 2 It is a schematic diagram of the surface splitting structure of the present invention. DETAILED DESCRIPTION

[0032] The present invention is further described below in conjunction with the accompanying drawings:

[0033] The present invention provides a curved roof construction method, comprising the following steps:

[0034] S1. Construct a visual model of a curved roof;

[0035] S2. Determine nodes and split segments in the visual model of the curved roof;

[0036] S3. Determine construction data according to nodes and segments;

[0037] The construction data includes: the elevation and coordinates of the top of the column, the elevation and coordinates of the end of the beam, and data information of different sections;

[0038] S4. Carry out construction according to the construction data.

[0039] Through the above method, it can be ensured that the curved surface connected according to the elevation and coordinates of the columns and beams is smooth and free of bulges.

[0040] In this embodiment, in step S1, a visualization model of the curved roof is constructed using BIM (Building Information Modeling) technology.

[0041] By utilizing the three-dimensional visualization and parameterization characteristics of BIM technology, the structure of the three-dimensional model based on surface data parameterization is deepened to fully express the smoothness of the designed surface.

[0042] In this embodiment, in step S2, nodes and split segments are determined in the visualization model of the curved roof; that is, the curved surface is split into different components;

[0043] The nodes and segments are determined by the following method:

[0044] The center line of the curved surface is evenly divided into m line segments to obtain m corresponding curved surfaces; the method for determining the center line of the curved surface is a prior art and will not be described in detail here;

[0045] The perpendicular plane of the line segment is used as the positioning surface to obtain the positioning surfaces of m curved surfaces;

[0046] Divide the intersection line segment of the curved surface and the corresponding positioning surface into e segments on average, and use the endpoints of each segment as nodes, where e is an integer greater than or equal to 4; Figure 2 As shown, Figure 2 The split positioning surfaces, curved surfaces and segments are shown;

[0047] Determine whether the segment meets the preset requirements. If so, output the node number, coordinates and elevation, as well as the segment data information; if not, divide the intersection line segment of the curved surface and the corresponding positioning surface into e+1 segments on average, and use the endpoints of each segment as nodes to re-determine whether the segment meets the preset requirements until the segment meets the preset requirements;

[0048] The preset requirements are as follows: in each segment evenly divided by the current intersection segment, there is a type of component whose number accounts for a percentage of the total number of components that is greater than or equal to a set threshold, and the type of component whose percentage is greater than or equal to the set threshold is taken as the type of the segment; generally, when the number of a type of component accounts for a percentage of the total number of components in the segment that is greater than or equal to a set threshold, the segment is called a standard segment of this type of component, and the threshold is set according to demand, preferably 90%. The above method is to divide standard segments; the more standard segments there are, the lower the processing cost.

[0049] That is, when the intersection line segment is divided into four segments on average, it is determined whether the four segments all meet the preset requirements. When any one of the four segments does not meet the requirements, the intersection line segment is divided into five segments on average, and it is determined again whether the segments all meet the preset requirements. If so, the corresponding information is output. If not, the intersection line segment is divided into six segments on average and it is determined whether each segment meets the preset requirements until all segments meet the preset requirements. The above method can ensure that all output segments are standard segments of a certain type of component, reduce production and processing costs, and reduce the difficulty of on-site installation.

[0050] In this embodiment, in step S3, construction data is determined according to nodes and segments;

[0051] The construction data includes: the elevation and coordinates of the top of the column, the elevation and coordinates of the end of the beam, and data information of different sections;

[0052] The data information of the segment includes at least: the category, number, coordinates, elevation, material and model specifications of the component, and may also include information such as the quality, processing, and cost of the component; the data information of the segment can be directly exported through the BIM system, which is an existing technology and will not be described in detail here;

[0053] The components can be divided into at least four categories, including main curved surface modeling components, main supporting components, auxiliary accessories and decorative components, etc.; among them, the main curved surface modeling components include curved surface aluminum plates, surface keels and aluminum alloy square tubes, etc.; the main supporting components include column top support top brackets, purlins, I-beam main beams, I-beam secondary beams, round steel columns and supporting keels, etc.; the auxiliary accessories and decorative components include: steel connectors, water tank bottom steel, gun tower aluminum plates, light trough plates and interlayer aluminum plates, etc.;

[0054] The elevation and coordinates of the column top are obtained by the following method:

[0055] The elevation of the column top is calculated by the following formula:

[0056]

[0057] Among them, H Z,i represents the elevation of the top of the i-th column, H K,j represents the elevation of the surface node corresponding to the top of the i-th column, h t,i represents the height of the segment t under the i-th column, and T represents the total number of segments under the i-th column; generally, there will be at least one supporting segment under the column, and after subtracting the height of the supporting segment, the elevation information of the column top is obtained;

[0058] The coordinates of the column top are equal to the coordinates of the column top surface nodes.

[0059] The elevation and coordinates of the ends of the beam are obtained by the following method:

[0060] The end elevation of the beam is calculated by the following formula:

[0061]

[0062] Among them, H L,j,n represents the elevation of the nth end of the jth beam, H K,j,n represents the elevation of the surface node corresponding to the nth end of the jth beam, h d,j represents the height of the dth segment under the jth beam, and D represents the total number of segments under the jth beam;

[0063] The coordinates of the ends of the beam are equal to the coordinates of the surface nodes corresponding to the ends of the beam.

[0064] In order to enable technical personnel to identify it, in the BIM system, the segments can be further replaced with components with data information, that is, the segments can be replaced with components with component attribute parameters in Revit (software in the BIM system), which can facilitate users to read component names, positioning points and other data and output them to form a component positioning table.

[0065] In this embodiment, in step S4, after the construction data is obtained, the conventional method is used for construction. The process of performing curved surface construction according to the construction data is a prior art and will not be described in detail here.

[0066] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the present invention, which should be included in the scope of the claims of the present invention.

Claims

1. A curved roof construction method, Features: The following steps are involved: S1. Construct a visual model of a curved roof; S2. Determine nodes and split segments in the visual model of the curved roof; S3. Determine construction data according to nodes and segments; The construction data includes: the elevation and coordinates of the top of the column, the elevation and coordinates of the end of the beam, and data information of different sections; S4. Carry out construction according to the construction data.

2. The curved roof construction method according to claim 1, Features: The elevation and coordinates of the column top are obtained by the following method: The elevation of the column top is calculated by the following formula: Among them, H Z,i represents the elevation of the top of the i-th column, H K,j represents the elevation of the surface node corresponding to the top of the i-th column, h t,i represents the height of segment t under the i-th column, and T represents the total number of segments under the i-th column; The coordinates of the column top are equal to the coordinates of the column top surface nodes.

3. The curved roof construction method according to claim 1, Features: The elevation and coordinates of the ends of the beam are obtained by the following method: The end elevation of the beam is calculated by the following formula: Among them, H L,j,n represents the elevation of the nth end of the jth beam, H K,j,n represents the elevation of the surface node corresponding to the nth end of the jth beam, h d,j represents the height of the dth segment under the jth beam, and D represents the total number of segments under the jth beam; The coordinates of the ends of the beam are equal to the coordinates of the surface nodes corresponding to the ends of the beam.

4. The curved roof construction method according to claim 1, Features: The data information of the segment includes at least: the category, number, coordinates, elevation, material and model specifications of the component.

5. The method for constructing a curved roof according to any one of claims 2, 3 or 4, Features: The nodes and segments are determined by the following method: Divide the center line of the surface into m line segments evenly, and obtain m corresponding surfaces; The perpendicular plane of the line segment is used as the positioning surface to obtain the positioning surfaces of m curved surfaces; Divide the intersection line segment of the curved surface and the corresponding positioning surface into e segments on average, and use the endpoints of each segment as nodes, where e is an integer greater than or equal to 4; Determine whether the segment meets the preset requirements. If so, output the node number, coordinates and elevation, as well as the segment data information; if not, divide the intersection segment of the curved surface and the corresponding positioning surface into e+1 segments on average, and use the endpoints of each segment as nodes to re-determine whether the segment meets the preset requirements until the segment meets the preset requirements.

6. The curved roof construction method according to claim 5, Features: The preset requirement is as follows: in each segment evenly divided by the current intersection segment, there is a type of component whose percentage of the total number of components is greater than or equal to a set threshold, and the type of component whose percentage is greater than or equal to the set threshold is taken as the type of the segment.

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