WO2016010213A1 - Device and method for calculating wind load using horizontal distance between apex and point where structure is located - Google Patents

Abstract

The present invention relates to a device and method for calculating a wind load using a horizontal distance between an apex and a point where a structure is located. A device for calculating a wind load according to an embodiment of the present invention may comprise: a target area setting unit for setting a target area using information on locations and heights of a plurality of points within an area in question; and a horizontal distance calculation unit for calculating a horizontal distance between the apex of the target area and a point where a structure is located.

Description

Wind load calculation device and method using the horizontal distance between the vertex and the point where the structure is located

The present invention relates to a wind load calculation device and method using the horizontal distance between the vertex and the point where the structure is located, as a result of research of the industry-university cooperation leading university (LINC) development project carried out with the support of the Ministry of Education.

Wind influences are one of the items to consider in the design of structures. Wind characteristics, such as wind speed or wind direction, are heavily influenced by the surrounding terrain, and if the wind speed is accelerated by the surrounding terrain, the safety of the structure can be threatened. Therefore, the work to be reflected in the design in consideration of the change in the wind speed according to the surrounding terrain is required.

In order to consider the change of wind speed due to the terrain, the topographic coefficient is introduced when calculating the design wind speed. The topographic coefficient is set to 1.0 for areas that do not affect the wind, such as plains, but greater than 1.0 for areas that change wind speed, such as mountains, hills, or slopes.

The topographic coefficient is calculated based on the upside and downside slopes specified according to the direction of wind with respect to the surrounding features. However, in the related art, the surrounding features, which are the basis for calculating the topographic coefficients, are subjectively and arbitrarily determined by the designer. As a result, the terrain coefficient calculated by the conventional method may not sufficiently reflect the influence of the terrain on the wind, and may cause a problem that the wind load is calculated too large or too small.

An embodiment of the present invention is to provide a wind load calculation device and method that can quantitatively and rationally reflect the effect of the terrain on the wind.

An apparatus for calculating wind load according to an embodiment of the present invention includes: a target area setting unit configured to set a target area using location and height information of a plurality of points in a target area; And a horizontal distance calculator configured to calculate a horizontal distance between a vertex of the target area and a point at which the structure is located.

The target area may include a point at which the structure is located and may have a predetermined shape and size.

The target area setting unit may include: a circular area whose radius is a length obtained by multiplying a predetermined value by a height difference or a horizontal distance between the highest point and the lowest point in the target area around the point where the structure is located; Or a circular area whose radius is a length obtained by multiplying a predetermined value by a height difference or a horizontal distance between the highest point and the lowest point in the target area around the point where the structure is located as the first area. And a length obtained by multiplying a predetermined value by a height difference or a horizontal distance between the highest point in the first area and the lowest point in the target area or the first area around the point where the structure is located. Set the second area as the target area, or center the point where the structure is located The circular area having a radius multiplied by a predetermined value to the height difference or the horizontal distance between the highest point and the lowest point in the target area is set as the first area, and the center of the point where the structure is located Repeating the step of setting the circular area as the second area, the radius of which is a length multiplied by a preset value to the height difference or horizontal distance between the highest point in the first area and the target area or the lowest point in the first area. A length obtained by multiplying a predetermined value by a height difference or a horizontal distance between the highest point in the N-th area and the lowest point in the target area or the N-th area based on the point where the structure is located. An Nth region having a radius can be set as the target region.

The target area setting unit may set a target point using location and height information of a plurality of points in the target area, and set an area having a predetermined shape and size around the target point as the target area.

The target area setting unit may include: setting a point where the structure is located as the target point, and setting an area having a predetermined shape and size around the target point as the target area, or centering a point where the structure is located. A region having a predetermined shape and size is set as a first region, a highest point in the first region is set as the target point, and a second region having a predetermined shape and size is centered around the target point. Set the target area, or set a region having a predetermined shape and size around the point where the structure is located as the first region, and set a predetermined shape and size around the highest point in the first region. Repeating the step of setting the region having the second region to the second region, the highest point in the N-1 region to the target point Settings, and it can set the first N region having a predetermined shape and size with respect to the target point in the target area.

The horizontal distance calculator may determine the highest point in the target area as the vertex.

The target area setting unit may include: setting a first target area and a second target area in the target area, and the horizontal distance calculator: between each point in the first target area and a point at which the structure is located at a preset initial value. Subtract a horizontal distance, add a horizontal distance between each point in the second target area and the location of the structure to the initial value, calculate a reference value for each point, and determine a vertex based on the reference value have.

The first and second target regions may include: two scalloped regions symmetric about a point at which the structure is located and having a preset vertex angle; Or two straight lines symmetrical about a point at which the structure is located.

The horizontal distance calculator may include: selecting a target point among a plurality of points in the first and second target areas, and one or more points in descending order of the reference value around the reference value of the target point and one or more points in an ascending order of the reference value. To select; If the highest point among the selected points is the target point, the corresponding target point may be determined as the vertex.

The target area setting unit may include: an area between parallel lines spaced apart by a predetermined length in the target area or a crossing line having a predetermined vertex angle as the target area, and the horizontal distance calculator is configured to: a plurality of points within the target area. Selecting three or more points consecutive in the order of the horizontal distance between the point and the reference line orthogonal to the parallel line passing through the point where the structure is located; Select three or more points consecutively in the order of the horizontal distance between the point and the intersection of the intersection line, and among the selected three or more points, the point corresponding to the middle in the order of the horizontal distance between the point and the reference line or the intersection point is the highest. In the case of a point, the point may be determined as the vertex.

The target area setting unit may be configured to set an area between parallel lines facing each other in the target area with the point where the structure is located as the target area, or to cross each other at a point where the structure in the target area is located. An area between intersection lines may be set as the target area.

The length between the parallel lines may be zero or more, or the vertex angle between the crossing lines may be 0 or more and 180 degrees or less.

In the case of a point located at one side about the reference line or the intersection point within the target area, a horizontal distance between the point and the reference line or the intersection point is negative, and located at the other side about the reference line or the intersection point within the target area. In the case of a point, the horizontal distance between the point and the reference line or the intersection may be positive.

The horizontal distance calculator may include: when there are a plurality of highest points corresponding to the middle points obtained from a plurality of points in the target area, the horizontal distance from the point where the structure is located among the plurality of highest points is the shortest. This vertex can be determined.

The wind load calculation apparatus may further include a topographic coefficient calculator for calculating a topographic coefficient based on a horizontal distance between the vertex and the point where the structure is located.

Wind load calculation method according to an embodiment of the present invention is a method for calculating the wind load applied to the structure using a wind load calculation device including a target area setting unit and the horizontal distance calculation unit, the position and height of a plurality of points in the target area Setting a target area using the information; And calculating a horizontal distance between a vertex of the target area and a point at which the structure is located.

The setting of the target area may include: setting a first target area and a second target area in the target area, and calculating the horizontal distance may include: setting the target area in the first target area at a preset initial value. A reference value for each point is calculated by subtracting the horizontal distance between each point and the point where the structure is located, and adding the horizontal distance between each point in the second target area and the point where the structure is located to the initial value. step; And determining a vertex based on the reference value.

The setting of the target area may include: setting the area between the parallel lines spaced apart by a predetermined length in the target area or a crossing line having a preset vertex angle as the target area, and calculating the horizontal distance. Is selected from among a plurality of points in the target area, the three or more points being contiguous in the order of the horizontal distance between the point and the reference line orthogonal to the parallel line passing through the point where the structure is located; Selecting at least three consecutive points in order of a horizontal distance between the point and the intersection of the intersection lines; And when the point corresponding to the middle point is the highest point in the order of the horizontal distance between the point and the reference line or the intersection point among the selected three or more points, determining the point as the vertex.

Wind load calculation method according to an embodiment of the present invention is implemented as a computer-executable program, can be recorded on a computer-readable recording medium.

The wind load calculation method according to an embodiment of the present invention may be implemented as a computer program stored in a medium in order to execute in combination with a computer.

According to an embodiment of the present invention, the wind load can be calculated by quantitatively and reasonably reflecting the influence of the terrain on the wind.

1 is an exemplary block diagram showing an apparatus for calculating wind load according to an embodiment of the present invention.

2 is a diagram illustrating an example of a target area set according to an embodiment of the present invention.

3 is a diagram illustrating an example of a target area set according to an embodiment of the present invention.

4 is a diagram illustrating an example of a target area set according to another embodiment of the present invention.

5 is a diagram illustrating an example of a target area set according to an embodiment of the present invention.

6 is a diagram illustrating an example of a target area set according to another embodiment of the present invention.

FIG. 7 is a diagram illustrating an example of first and second target areas set to calculate a horizontal distance between a vertex and a point where a structure is located according to an embodiment of the present invention.

FIG. 8 is a diagram illustrating another example of first and second target areas set to calculate a horizontal distance between a vertex and a point where a structure is located according to an embodiment of the present invention.

FIG. 9 is a diagram illustrating still another example of first and second target areas set to calculate a horizontal distance between a vertex and a point where a structure is located according to an embodiment of the present invention.

10 is an exemplary diagram for describing a process of calculating a reference value for each point according to an embodiment of the present invention.

11 is an exemplary diagram for explaining a process of determining a vertex from a reference value and a height of points according to an embodiment of the present invention.

12 is an exemplary diagram for explaining a process of determining vertex candidates and vertices from reference values and heights of points according to another embodiment of the present invention.

13 and 14 are exemplary diagrams for explaining a process of determining a vertex from a reference value and a height of points according to another embodiment of the present invention.

15 and 16 are exemplary diagrams for explaining a process of determining a vertex from a reference value and a height of points according to another embodiment of the present invention.

17 is a diagram illustrating an example of a target area and a target area set for calculating wind load according to an embodiment of the present invention.

18 is a diagram illustrating an example of a target area and a target area set for calculating wind load according to another embodiment of the present invention.

19 is a diagram illustrating another example of a target area and a target area set for calculating wind load according to an embodiment of the present invention.

20 is a diagram illustrating another example of a target area and a target area set for calculating wind load according to another embodiment of the present invention.

FIG. 21 is a diagram for describing a process of determining a vertex based on a horizontal distance between each point and a reference line or an intersection point and height of each point according to another embodiment of the present invention.

22 is an exemplary flowchart of a wind load calculation method according to an embodiment of the present invention.

Other advantages and features of the present invention, and a method of achieving them will be apparent with reference to the embodiments described below in detail with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but may be implemented in various forms, and only the present embodiments are intended to complete the disclosure of the present invention, and the general knowledge in the art to which the present invention pertains. It is provided to fully convey the scope of the invention to those skilled in the art, and the present invention is defined only by the scope of the claims.

If not defined, all terms used herein (including technical or scientific terms) have the same meaning as commonly accepted by universal techniques in the prior art to which this invention belongs. Terms defined by general dictionaries may be interpreted as having the same meaning as in the related description and / or text of the present application, and are not conceptualized or overly formal, even if not expressly defined herein. Will not.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. In this specification, the singular also includes the plural unless specifically stated otherwise in the phrase. As used herein, the term "comprises" and / or the various forms of use of this verb, for example, "comprises," "comprising," "comprising," "comprising," and the like refer to compositions, ingredients, components, The steps, operations and / or elements do not exclude the presence or addition of one or more other compositions, components, components, steps, operations and / or elements. As used herein, the term 'and / or' refers to each of the listed configurations or various combinations thereof.

On the other hand, the terms '~', '~', '~ block', '~ module', etc. used throughout the present specification may mean a unit for processing at least one function or operation. For example, it can mean a hardware component such as software, FPGA, or ASIC. However, '~', '~', '~ block', '~ module', etc. are not limited to software or hardware. '~', '~', '~', '~' May be configured to reside in an addressable storage medium or may be configured to play one or more processors.

Thus, as an example, '~', '~', '~ block', '~ module' are components such as software components, object-oriented software components, class components, and task components. And processes, functions, properties, procedures, subroutines, segments of program code, drivers, firmware, microcode, circuits, data, databases, data structures, tables, arrays, and Contains variables The components and the functions provided within '~', '~', '~', '~', ',' ~ Module 'or may be further separated into additional components and' ~ part ',' ~ group ',' ~ block ',' ~ module '.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

As used herein, the term "structure" refers to a building, a work piece, a building, a window, an outdoor advertisement, a bridge, and the like, and means any object placed in a space and subjected to a wind load.

An embodiment of the present invention provides an apparatus and method for calculating wind loads applied to a structure, and particularly, an apparatus and method for calculating a horizontal distance between a vertex and a point at which a structure is located as a parameter used for calculating the wind load.

An apparatus and method for calculating wind loads according to an embodiment of the present invention sets a target area using location and height information of a plurality of points in a target area, and then calculates a horizontal distance between the vertex of the target area and the point where the structure is located. By doing so, it is possible to calculate the wind load on the structure objectively and reasonably.

1 is an exemplary block diagram showing a wind load calculation apparatus 100 according to an embodiment of the present invention.

As illustrated in FIG. 1, the wind load calculating apparatus 100 may include a target area setting unit 112 and a horizontal distance calculating unit 113. The target area setting unit 112 may set a target area by using location and height information of a plurality of points in the target area. The horizontal distance calculator 113 may calculate a horizontal distance between a vertex of the target area and a point where the structure is located.

According to an embodiment, the wind load calculating apparatus 100 may further include an information collecting unit 111. The information collecting unit 111 may collect position and height information of a plurality of points in an area (eg, one or both of a target area and a target area).

2 is a diagram illustrating an example of a target area 20 set according to an embodiment of the present invention.

According to an embodiment of the present invention, the target area includes a point where the structure is located and may be an area having a predetermined shape and size.

For example, as shown in FIG. 2, the target area may be set as a circular area 20 having a preset size around the point C where the structure is located. In this embodiment, the target area 20 is set to a circular shape, but the shape of the target area is not limited thereto, and may be set to any shape such as a polygon, an ellipse, a fan, and the like.

According to an embodiment, the target area 20 may be a circular area having a radius of a smaller value of 40 times and 3 km of the height of the structure around the point C where the structure is located. However, the size of the target area is not limited thereto, and may be set to various values according to embodiments.

The information collecting unit 111 may collect position and height information of a plurality of points in the target area 20 set as described above.

According to an embodiment, the information collecting unit 111 may include a location of a point from at least one of a digital map including geographic information about the plurality of points, and survey data obtained by surveying the plurality of points. And height information. The survey data may be data obtained using at least one of ground survey, GPS survey, aerial survey, radar survey, and LiDAR survey, but the survey method for obtaining the survey data is not limited thereto. .

According to an embodiment, the wind load calculating apparatus 100 may further include a storage 12. The storage unit 12 may store geographic information for the plurality of points. In this case, the information collecting unit 111 may retrieve geographic information stored in the storage unit 12 to obtain position and height information of the plurality of points.

According to another embodiment of the present invention, the wind load calculation apparatus 100 may further include a communication unit 10. The communication unit 10 may access a server that provides geographic information for the plurality of points.

For example, as illustrated in FIG. 1, the communication unit 10 may access a server 200 that provides geographic information through a wired or wireless network, for example, a geographic information system (GIS), and the information collection unit. 111 may obtain location and height information by receiving geographic information on the plurality of points from the server 200.

According to an embodiment, the wind load calculation apparatus 100 may further include an input unit 13, and position and height information of the plurality of points may be input from a user through the input unit 13.

According to an embodiment, the information collecting unit 111 may obtain location and height information from an elevation point of the electronic map, a node extracted from the contour line, or both, but the target area 20 from which the location and height information is obtained. Points within are not limited to elevations and nodes.

As described above, the information collecting unit 111 may obtain location and height information of the plurality of points from at least one of an electronic map and survey data, but according to an embodiment, a digital elevation model (DEM) of a target area may be obtained. Can also be obtained from.

For example, the information collecting unit 111 first obtains position and height information of a plurality of points in the target area 20, and then, based on the obtained information, a numerical elevation model for the target area 20. (DEM) can be generated. Thereafter, the information collecting unit 111 may obtain location and height information of another plurality of points in the target area 20 from the numerical elevation model DEM.

According to an embodiment, the plurality of points in the target area 20 may be located at the same interval, but in some embodiments, the plurality of points may be arranged at different intervals. In other words, the plurality of points may be uniformly or non-uniformly distributed in the target area 20.

The target area setting unit 112 may newly set the target area by using the position and height information collected from the target area 20.

3 is a diagram illustrating an example of a target area 21 set to calculate wind load according to an embodiment of the present invention.

According to an embodiment, as shown in FIG. 3, the target area setting unit 112 has a height difference between the highest point and the lowest point in the target area 20 about the point C where the structure is located. Alternatively, the target area 21 may be a circular area whose radius is a length obtained by multiplying a horizontal value by a preset value.

Here, the target area 21 may be smaller in size than the target area 20. However, depending on the value multiplied by the height difference or the horizontal distance between the highest point and the lowest point in the target area 20, the target area 21 may be larger than the target area 20. .

For example, a value multiplied by the height difference or the horizontal distance may be set to 1.6 to obtain a radius of the target area 21, but the multiplied value may be variously set according to an embodiment without being limited thereto. have.

4 is a diagram illustrating an example of a target area 22 set according to another embodiment of the present invention.

According to another embodiment, the target region setting unit 112 is first set in a height difference or horizontal distance between the highest point and the lowest point in the target area 20 with respect to the point C where the structure is located. A circular area having a radius multiplied by a value may be set as a first area (eg, 21 in FIG. 3).

Then, as illustrated in FIG. 4, the target region setting unit 112 may be the highest point in the first region 21 and the target region 20 around the point C where the structure is located. Alternatively, the target area 22 may be a second area 22 whose radius is a length obtained by multiplying a predetermined value by a height difference or a horizontal distance between the lowest points in the first area 21.

Similarly, a value multiplied by the height difference or horizontal distance may be set to 1.6 to obtain a radius of the target area 22, but the multiplied value may be variously set according to an embodiment without being limited thereto. .

According to an embodiment, the target region setting unit 112 may repeat the process of setting a new region and set the region obtained according to the target region.

For example, the target region setting unit 112 may set a predetermined value in a height difference or horizontal distance between the highest point and the lowest point in the target area 20 with respect to the point C where the structure is located. The circular area having the multiplied length as a radius is set as the first area 21, and the highest point in the first area 21 and the target area 20 are centered around the point C where the structure is located. Alternatively, the process may be repeated by setting a circular area having a radius multiplied by a predetermined value to a height difference or a horizontal distance between the lowest points in the first area 21 as the second area 22. A length obtained by multiplying a predetermined value by a height difference or a horizontal distance between the highest point in the N-th region and the lowest point in the target region 20 or the N-th region with respect to the position C located. With radius An N area may be set as the target area. At this time, N is a natural number of 3 or more.

According to an embodiment, the target area setting unit 112 may set a target point by using position and height information of a plurality of points in the target area 20, and may newly set the target area as the target area. have.

5 is a diagram illustrating an example of a target area 31 set to calculate wind load according to an embodiment of the present invention.

According to an embodiment, as shown in FIG. 5, the target region setting unit 112 may set the point C where the structure is located as the target point. Then, a circular region 31 having a predetermined shape and size may be set as a target region around the target point.

The target area may be different from the target area. In other words, the target region setting unit 112 may set a region different from the target region as a target region having a preset shape and size with respect to the target point.

The target area 31 may be set to a circular area having a radius of a height difference between the highest point and the lowest point in the target area, but the shape of the target area 31 is not limited to a circle according to an embodiment. It can be set variously, such as ellipses, polygons, and the like. In addition, with respect to the size of the target area 31, the radius of the target area 31 is not limited to the height difference between the highest point and the lowest point in the target area, and according to the embodiment The horizontal distance between the highest point and the lowest point, the height of the structure, and a user input value may be variously set.

6 is a diagram illustrating an example of a target area 32 set for calculating wind load according to another embodiment of the present invention.

According to another embodiment, the target area setting unit 112 first sets an area having a predetermined shape and size around the point C where the structure is located as the first area (eg, 31 in FIG. 5). The highest point (eg, H ₁ of FIG. 5) in the first region 31 may be set as a target point. Thereafter, the target region setting unit 112 may set a second region (eg, 32 in FIG. 6) having a predetermined shape and size around the target point H ₁ as a target region.

According to an embodiment, the target region setting unit 112 may repeat the process of setting a new region and set the region obtained according to the target region.

For example, the target region setting unit 112 sets a region having a predetermined shape and size as the first region 31 based on the point C where the structure is located, and the first region 31. By repeating the process of setting an area having a predetermined shape and size as the second area 32 around the highest point H ₁ ), the highest point in the N-1 area can be set as the target point. have. Thereafter, the target region setting unit 112 may set the N-th region having a predetermined shape and size around the target point as the target region. At this time, N is a natural number of 3 or more.

The horizontal distance calculator 113 may calculate a horizontal distance between a vertex of the target areas 21, 22, 31, and 32 and a point at which the structure is located.

According to an embodiment, the horizontal distance calculator 113 may determine the highest point in the target areas 21, 22, 31, and 32 as a vertex.

For example, referring to FIG. 6, when the second region 32 is set as a target region, the horizontal distance calculator 113 vertices the point H ₂ , which is the highest point in the target region 32. Can be determined.

According to an embodiment, the target area setting unit 112 may set a first target area and a second target area in the target area 20. The horizontal distance calculator 113 calculates a reference value for each point in the first and second target areas by using position and height information of a plurality of points in the first and second target areas. After determining a vertex based on the reference value, a horizontal distance between the vertex and a point at which the structure is located may be calculated.

FIG. 7 is a diagram illustrating an example of first and second target areas 211 and 212 set to calculate a horizontal distance according to an embodiment of the present invention.

According to an embodiment of the present invention, the target region setting unit 112 may define the target region such that the first target region 211 and the second target region 212 are symmetric about the point C where the structure is located. Can be set. The first and second target areas 211 and 212 may have a predetermined shape and size.

For example, as shown in FIG. 7, the target region setting unit 112 sets a straight line passing through the point C where the structure is located as the target area, but is centered on the point C where the structure is located. The straight line positioned at one side may be set as the first target region 211, and the straight line positioned at the other side may be set as the second target region 212.

The length of each of the first target area 211 and the second target area 212 may be a smaller value of 40 times and 3 km of the height of the structure, but the length of the target area is not limited thereto.

8 is a diagram illustrating another example of the first and second target areas 211 and 212 that are set to calculate the horizontal distance according to an embodiment of the present invention.

As illustrated in FIG. 8, the target region setting unit 112 may set two regions facing each other around the point C where the structure is located, as the first and second target regions 211 and 212. have.

According to an embodiment, the first and second target areas 211 and 212 may have a fan shape having a predetermined radius and a vertex angle.

Here, the radius of the first and second target areas 211 and 212 may be a smaller value of 40 times and 3 km of the height of the structure, but is not limited thereto. The apex angle is greater than or equal to 0 and smaller than 180 °. Or may be the same.

In addition, although the first and second target areas 211 and 212 are illustrated in a fan shape in FIG. 8, the first and second target areas 211 and 212 are formed around the point C at which the structure is located. The shape is not limited as long as it is symmetrical.

9 is a diagram illustrating still another example of the first and second target areas 211 and 212 set to calculate the horizontal distance according to an embodiment of the present invention.

As shown in FIG. 9, the target region setting unit 112 sets a region having a predetermined shape and size as a target region around the point C where the structure is located, and divides the target region by half. The half may be set as the first target area 211, and the other half may be set as the second target area 212.

In FIG. 9, the target area is set to a circular shape, but the shape of the target area is not limited thereto and may be set to any shape, for example, polygonal or elliptical.

When the target area is set to a circle, the radius of the target area may be a smaller value of 40 times and 3 km of the height of the structure, but is not limited thereto.

The information acquisition unit 111 may acquire location information and height information of a plurality of points X in the first and second target areas 211 and 212.

According to an embodiment, the information acquisition unit 111 may determine a location from at least one of a digital map of the plurality of points X and survey data obtained by surveying the plurality of points X. Position information and height information can be obtained. The survey data may be data obtained using at least one of ground survey, GPS survey, aerial survey, radar survey, and LiDAR survey, but the survey method for obtaining the survey data is not limited thereto. .

According to an embodiment, the wind load calculating apparatus 100 may further include a storage 12. The storage unit 12 may store location information and height information of the plurality of points X. In this case, the information acquisition unit 111 may retrieve the information stored in the storage unit 12 to obtain location information and height information of the plurality of points X.

According to another embodiment of the present invention, the wind load calculation apparatus 100 may further include a communication unit 10. The communication unit 10 may access a server that provides geographic information for the plurality of points (X).

For example, as shown in FIG. 1, the communication unit 10 may access a server 200 that provides geographic information through a wired or wireless network, for example, a geographic information system (GIS). 111 may obtain height information on the plurality of points X from the server 200.

According to an embodiment, the wind load calculation apparatus 100 may further include an input unit 13, and position information and height information of the plurality of points X may be input from a user through the input unit 13. have.

As described above, the information acquisition unit 111 obtains position and height information of the plurality of points X from at least one of the electronic map and the survey data of the first and second target areas 211 and 212. In some embodiments, position and height information of the plurality of points X may be obtained by using interpolation based on at least one of an electronic map and survey data.

For example, the information acquisition unit 111 may use the interpolation method based on at least one of an electronic map of the target area and survey data obtained by surveying the target area. The location information and the height information of the plurality of points X in 211 and 212 may be obtained.

According to an embodiment, the information acquisition unit 111 may provide location information and height information of the plurality of points X in the first and second target areas 211 and 212 from the numerical elevation model DEM of the target area. May be obtained.

For example, the information acquisition unit 111 may first obtain position information and height information of a plurality of sample points in the target area, and then generate a numerical elevation model for the target area based on the obtained information. have. Thereafter, the information acquisition unit 111 may obtain location information and height information of the plurality of points X in the first and second target areas 211 and 212 from the numerical elevation model.

According to an embodiment, the plurality of points X may be located at the same intervals in the first and second target areas 211 and 212, but according to an embodiment, the plurality of points X may be disposed at different intervals. It may be arranged. In other words, the plurality of points X may be uniformly or non-uniformly distributed in the first and second target areas 211 and 212.

When the position information and the height information of the plurality of points X are obtained, the horizontal distance calculator 113 uses the position information of the points X in the target areas 211 and 212 for each point. The reference value can be calculated.

FIG. 10 is an exemplary diagram for describing a process of calculating a reference value for each point X according to an embodiment of the present invention.

Hereinafter, points 1 to 50 of the 100 points shown in FIG. 10 are located in the first target area 211, structures are located at point 51, and points 52 to 100 are located in the second target area 212. Assume that you do.

According to an embodiment of the present invention, the horizontal distance calculator 113 calculates a horizontal distance between each point X in the first target area 211 and a point C at which the structure is located at a preset initial value. And subtract the horizontal distance between each point X in the second target area 212 and the point C at which the structure is located to the initial value, thereby subtracting the first and second target areas 211 and 212. A reference value may be calculated for each point X in the display.

For example, referring to FIG. 10, the horizontal distance calculator 113 may correspond to each point (ie, points 1 to 50) in the first target area 211 at a preset initial value (eg, 500). A reference value of each point in the first target area 211 may be calculated by subtracting a horizontal distance between the points C where the structure is located.

In addition, the horizontal distance calculator 113 is horizontal between each point (ie, points 52 to 100) in the second target area 212 and the point C where the structure is located at the initial value (eg, 500). The distance may be added to calculate a reference value of each point in the second target area 212.

As a result, a point 1 having a horizontal distance of 500 m between the point C in which the structure is located while being located in the first target area 211 is calculated as 0, and the structure is located in the second target area 212. A point 100 having a horizontal distance of 490 m between points C located is calculated to have a reference value of 990.

The above-described embodiment uses 500 as an initial value to calculate a reference value, but the initial value may be variously set without being limited thereto.

Then, the horizontal distance calculator 113 may determine a vertex based on the reference value, and calculate a horizontal distance between the vertex and the point where the structure is located.

FIG. 11 is an exemplary diagram for describing a process of determining a vertex from reference values and heights of points X according to an embodiment of the present invention.

According to an embodiment of the present invention, the horizontal distance calculator 113 selects a target point among the plurality of points X, and at least one point and the descending order of the reference value based on the reference value of the target point. You can select one or more points in ascending order of the reference value. Then, when the highest point among the selected points is the target point, the horizontal distance calculator 113 may determine the target point as a vertex.

In addition, the horizontal distance calculator 113 selects a target point in the order of the shortest horizontal distance between the points (C) where the structure is located among the plurality of points (X), but the selected target point is not determined as a vertex The vertex determination process may be repeated by selecting a point having a long horizontal distance between the point C next to the target point as the next target point.

For example, referring to FIG. 11, the horizontal distance calculator 113 selects a point having the shortest horizontal distance between the points C where the structure is located among the plurality of points X, that is, the point 51 at which the structure is located. A target point may be selected, and a point 50 having a smaller reference value than the target point and a point 52 having a larger reference value may be selected.

However, since the highest point among the above selected points 50 to 52 is point 52 rather than point 51 which is a target point, the horizontal distance calculator 113 is located between the point C where the structure is located next to the point 51 which is the target point. The above-described vertex determination process may be repeated by selecting a point having a long horizontal distance (eg, point 52 in FIG. 11) as a next target point.

In this case, among the point 52 which is the target point, the point 51 having a reference value smaller than the target point, and the point 53 having a reference value larger than the target point, the highest point is the point 52 which is the target point, and thus the corresponding target point may be determined as a vertex.

12 is an exemplary diagram for describing a process of determining a vertex from a reference value and a height of a point X according to another embodiment of the present invention.

According to another embodiment of the present invention, the horizontal distance calculator 113 selects three or more points consecutive in the order of reference values among the plurality of points X, and the reference value of the highest point among the selected three or more points is In the middle of the reference values of the selected three or more points, the corresponding point may be determined as a vertex candidate. The horizontal distance calculator 113 may determine, as a vertex, a point having the shortest horizontal distance between the points C where the structure is located among the vertex candidates obtained from the plurality of points X. FIG.

For example, referring to FIG. 12, the horizontal distance calculator 113 selects three or more points (eg, points 1, 2, 3) that are consecutive in the order of reference values among the plurality of points X, and selects the selected points. It may be determined whether a reference value of the highest point among the points (that is, point 3) falls among the reference values of the selected points.

According to this embodiment, if the number N of the selected points is odd, the reference value corresponding to the middle means (N + 1) / 2th reference value, and if the number N of the selected points is even, the reference value corresponding to the middle The reference value means the N / 2th reference value or (N / 2) + 1st reference value.

Therefore, since the reference value of the highest point (point 3) of points 1, 2, and 3 corresponds to the last non-middle among the reference values of the selected points, the point corresponding to point 3 is not determined as a vertex candidate.

Next, the horizontal distance calculator 113 selects another set of points (eg, points 2, 3, and 4) that are continuous in the order of the reference value among the plurality of points X, and selects the most of the selected points. It may be determined whether the reference value of the high point (that is, point 3) falls in the middle of the reference values of the selected points.

In this case, since the reference value of the highest point (point 3) of the points 2, 3, and 4 corresponds to the middle among the reference values of the selected points, the point corresponding to the point 3 is determined as a vertex candidate.

In this manner, n vertex candidates may be obtained by performing a vertex candidate determination process on all of the plurality of points X, and the horizontal distance calculator 113 is a point where a structure is located among the n vertex candidates. A vertex candidate (vertex candidate i in FIG. 12) having the shortest horizontal distance between (C) may be determined as a vertex.

13 and 14 are exemplary diagrams for describing a process of determining a vertex from a reference value and a height of a point X according to another embodiment of the present invention.

According to another embodiment of the present invention, the horizontal distance calculator 113 is a target point of a plurality of points (X), one or more points having a smaller reference value than the target point, and one or more larger reference values than the target point. You can select a point.

Thereafter, the horizontal distance calculator 113 may assign two-dimensional coordinates whose x-axis coordinates are a reference value and y-axis coordinates are the heights of the respective points to the selected points. Thereafter, the horizontal distance calculator 113 may calculate an interpolation equation that passes two-dimensional coordinates of the selected points.

Subsequently, when the interpolation equation has a maximum value between the minimum x axis coordinates and the maximum x axis coordinates of the selected points, the horizontal distance calculator 113 uses the x axis coordinates corresponding to the maximum value of the interpolation equation as a reference value. And a virtual point with a maximum height as the vertex can be determined.

In this case, the horizontal distance calculator 113 selects a target point in the order of the shortest horizontal distance between the points (C) where the structure is located among a plurality of points (X), the interpolation equation is the minimum x of the selected points If there is no maximum value between the axis coordinates and the maximum x-axis coordinates, the vertex determination process may be repeated by selecting a point having a long horizontal distance between the point C where the structure is located next to the target point as the next target point.

For example, referring to FIG. 11, the horizontal distance calculator 113 selects a point having the shortest horizontal distance between the points C where the structure is located among the plurality of points X, that is, the point 51 at which the structure is located. A target point may be selected, and a point 50 having a smaller reference value than the target point and a point 52 having a larger reference value may be selected.

Then, the horizontal distance calculator 113 assigns two-dimensional coordinates to the selected points (points 50, 51, 52) using the reference value of each point as the x-axis coordinate and the height of each point as the y-axis coordinate. can do.

Referring to FIG. 13, an interpolation equation passing through two-dimensional coordinates P ₅₀ , P ₅₁ , and P _{52 corresponding} to the selected points (points 50, 51, 52) is obtained from the selected points (points 50, 51, 52). Since the horizontal distance calculator 113 does not have a maximum value between the minimum x-axis coordinate x ₅₀ and the maximum x-axis coordinate x ₅₂ , the horizontal distance calculator 113 has a horizontal distance between the point C where the structure is located next to the target point 51. The above-described vertex determination process may be repeated by selecting a long target point (eg, point 52 in FIG. 11) as the next target point.

In this case, two-dimensional coordinates are assigned to a point 52 that is a target point, a point 51 having a reference value smaller than the target point, and a point 53 having a reference value larger than the target point, and an interpolation equation passing through the two-dimensional coordinates for these points is calculated. .

Referring to FIG. 10, an interpolation equation passing through two-dimensional coordinates P ₅₁ , P ₅₂ , and P _{53 corresponding} to the selected points (points 51, 52, 53) is obtained by selecting the selected points (points 51, 52, 53). A virtual point having a maximum value between a minimum x-axis coordinate x ₅₁ and a maximum x-axis coordinate x ₅₃ , and the horizontal distance calculator 113 has an x-axis coordinate corresponding to the maximum value as a reference value and the maximum value as a height. Can be determined as a vertex.

15 and 16 are exemplary diagrams for describing a process of determining a vertex from a reference value and a height of a point X according to another embodiment of the present invention.

According to another embodiment of the present invention, the horizontal distance calculator 113 selects three or more points consecutive in the order of reference values among the plurality of points X, and allocates two-dimensional coordinates to the selected three or more points. In addition, an interpolation equation passing through two-dimensional coordinates of the selected three or more points may be calculated. Here, x-axis coordinates of the two-dimensional coordinates is a reference value of each point, y-axis coordinates are the height of each point.

Then, when the interpolation equation has a maximum value between the minimum x-axis coordinates and the maximum x-axis coordinates of the selected three or more points, the horizontal distance calculator 113 calculates an x-axis coordinate corresponding to the maximum value of the interpolation equation. A virtual point having a reference value and having the maximum value as a height may be determined as a vertex candidate.

Thereafter, the horizontal distance calculator 113 may determine, as a vertex, a point having the shortest horizontal distance between the points C where the structure is located among the vertex candidates obtained from the plurality of points X.

For example, referring to FIG. 12, the horizontal distance calculator 113 selects three or more points (eg, points 1, 2, 3) that are consecutive in the order of reference values among the plurality of points X, Two-dimensional coordinates may be assigned to the selected points (points 1, 2, and 3) using the reference value of the point as the x-axis coordinate and the height of each point as the y-axis coordinate.

Referring to FIG. 15, an interpolation equation passing through two-dimensional coordinates P ₁ , P ₂ , and P _{3 corresponding} to the selected points (points 1, 2, 3) is obtained by selecting the selected points (points 1, 2, 3). Since there is no maximal value between the minimum x-axis coordinate x ₁ and the maximum x-axis coordinate x ₃ , no vertex candidate is determined from these points.

Next, the horizontal distance calculator 113 selects another set of points (eg, points 2, 3, and 4) that are continuous in the order of the reference value among the plurality of points X, and 2 as described above. Repeat dimensional coordinate assignment and interpolation equation calculation.

Referring to FIG. 16, an interpolation equation passing through two-dimensional coordinates P ₂ , P ₃ , and P _{4 corresponding} to the selected points (points 2, 3, and 4) may be applied to the selected points (points 2, 3, and 4). Since the maximum value is between the minimum x-axis coordinate x ₂ and the maximum x-axis coordinate x ₄ , the virtual point having the x-axis coordinate corresponding to the maximum value of the interpolation equation as the reference value and the maximum value as the height is determined as the vertex candidate. Can be.

In this manner, n vertex candidates may be obtained by performing a vertex candidate determination process on all of the plurality of points X, and the horizontal distance calculator 113 is configured to locate a structure among the n vertex candidates. The point where the horizontal distance between the points C is shortest may be determined as the vertex.

According to an exemplary embodiment, the target region setting unit 112 may set a region between parallel lines spaced apart by a predetermined length in the target region 20 or a cross line having a preset vertex angle as the target region.

17 is a diagram illustrating an example of a target area 20 and a target area 21 set to calculate wind load according to an embodiment of the present invention.

According to an embodiment of the present invention, the target region setting unit 112 uses the region 21 between the parallel lines 201 and 202 spaced by a predetermined length L in the target region 20 as the target region. Can be set.

For example, as shown in FIG. 17, the target region setting unit 112 faces parallel lines 201 and 202 facing each other in the target region 20 with a point C where the structure is located therebetween. The area 21 between) may be set as the target area. According to an embodiment, each of the parallel lines 201 and 202 may be spaced apart from the point C where the structure is located by the same distance (L / 2), but between each parallel line and the point C where the structure is located. The interval is not limited to this.

FIG. 18 is a diagram illustrating an example of a target area 20 and a target area 22 set to calculate wind load according to another exemplary embodiment of the present invention.

According to this embodiment, the target region setting unit 112 may set the region 22 between the intersection lines 203 and 204 having a preset vertex angle θ in the target region 20 as the target region. .

For example, as illustrated in FIG. 18, the target region setting unit 112 has a preset vertex angle θ in the target region 20 and crosses each other at a point C at which the structure is located. After the intersection lines 203 and 204 are set, the region 22 between the intersection lines 203 and 204 may be set as the target region.

According to an embodiment of the present invention, the length L between the parallel lines 201 and 202 may be zero or more. In other words, the parallel lines 201 and 202 may be spaced apart from each other by a predetermined interval, and the separation length may be set to 0 according to an embodiment.

19 is a diagram illustrating another example of the target area 20 and the target area 21 that are set to calculate the wind load according to an embodiment of the present invention.

As shown in FIG. 19, the distance L between the parallel lines 201 and 202 may be set to 0. In this case, the target area 21 may have a straight shape.

In addition, according to an embodiment of the present invention, the apex angle θ between the intersection lines 203 and 204 may be 0 or more and 180 degrees or less. In other words, the intersection lines 203 and 204 may not only be separated from each other by a predetermined angle, but also the vertex angle θ may be set to 0 according to an embodiment. In this case, the target region between the intersection lines 203 and 204 may have a straight line shape as shown in FIG. 19.

20 is a diagram illustrating another example of the target area 20 and the target area 22 set to calculate the wind load according to another embodiment of the present invention.

As shown in FIG. 20, according to another embodiment of the present invention, the vertex angle θ between the intersection lines 203 and 204 may be set to 180 °, in which case the target area 22 may be It will coincide with the target area 20.

When position and height information of a plurality of points X in the target areas 21 and 22 are obtained, the horizontal distance calculator 113 determines a vertex using the position and height information, and determines the vertex The horizontal distance between the point (C) where the structure is located can be calculated.

According to an embodiment, the horizontal distance calculator 113 may determine the highest point among the plurality of points X as a vertex.

According to another embodiment, the horizontal distance calculator 113 selects three or more points consecutive in the order of the horizontal distance between the point X and the reference line R among the plurality of points X, or the point X And three or more points consecutive in the order of the horizontal distance between the intersection points of the intersection lines 203 and 204 (that is, the point C where the structure is located) may be selected. Then, the horizontal distance calculation unit 113 is the highest point among the three or more selected points in the order of the horizontal distance between the point (X) and the reference line (R) or the intersection point (C) In the case, the point may be determined as a vertex.

Here, the reference line R is defined as a line orthogonal to the parallel lines 201 and 202 while passing through the point C where the structure is located.

According to this embodiment, in the case of a point located on one side of the reference line R or the intersection point C in the target areas 21 and 22, the corresponding point and the reference line R or the intersection point C ), The horizontal distance is negative, and in the case of a point located on the other side with respect to the reference line R or the intersection point C in the target area 21 and 22, the point and the reference line R or the intersection point The horizontal distance between (C) may be positive.

For example, referring to FIGS. 17 and 18, in the target areas 21 and 22, one side 221 around the point 211 around the reference line R or the intersection C may be located. ), The sign of the horizontal distance between the point and the reference line (R) or the intersection point (C) may be set to a negative (-).

In addition, a point located on the other side 212 about the reference line R in the target areas 21 and 22 or a point located on the other side 222 about the intersection point C, the point and the reference line. (R) or the sign of the horizontal distance between the intersection point (C) may be set positive (+).

FIG. 21 is an example for explaining a process of determining a vertex using a horizontal distance between each point X and a reference line R or an intersection point C and the height of each point X according to another embodiment of the present invention. Drawing.

In the embodiment of FIG. 21, it is assumed that a total of 100 points are allocated in the target areas 21 and 22, and a structure is located at a point 51 of the 100 points. In addition, points 1 to 50 are located at one side 211 and 221 around the reference line R or the intersection point C in the target areas 21 and 22, and points 52 to 100 are located at the target area ( Suppose it is located on the other side (212, 222) with respect to the reference line (R) or the intersection point (C) within the 21, 22.

According to this embodiment, the horizontal distance calculating unit 113 may first calculate the horizontal distance between each point (X) and the reference line (R) or intersection point (C). Here, the horizontal distance between the point (X) and the reference line (R) is the horizontal distance between the foot of the waterline where the waterline meets the reference line (R) when the waterline is drawn from the point (X) to the reference line (R) and the point (X) to be. That is, the horizontal distance between the point X and the reference line R means the shortest horizontal distance among the horizontal distances between the point X and the numerous points on the reference line R.

In this embodiment, points 1 to 50 are located at one side 211 and 221 about the reference line R or the intersection point C, and thus the horizontal distance with the reference line R or the intersection point C. The sign may be set to negative. Since the points 52 to 100 are located at the other sides 212 and 222 with respect to the reference line R or the intersection point C, the sign of the horizontal distance from the reference line R or the intersection point C is positive. It can be set to (+).

Thereafter, the horizontal distance calculator 113 may select three or more points consecutive from the plurality of points X in the order of the horizontal distance between the point X and the reference line R or the intersection point C.

For example, referring to FIG. 21, the horizontal distance calculator 113 starts ascending the horizontal distance starting from point 1 having the smallest horizontal distance between the point X and the reference line R or the intersection point C. Three points can be selected: points 1, 2 and 3.

Then, the horizontal distance calculation unit 113, if the point corresponding to the middle point in the order of the horizontal distance between the point (X) and the reference line (R) or the intersection point (C) of the selected point is the highest point, Can be determined as a vertex. Here, if the number N of the selected points is odd, the point corresponding to the middle means (N + 1) / 2th point. If the number N of the selected points is even, the point corresponding to the middle point is N / 2. The first point or (N / 2) + the first point.

For example, referring to FIG. 21, the horizontal distance calculator 113 is horizontal between the point X and the reference line R or the intersection point C among the selected three points (points 1, 2, and 3). After comparing the height of the second point (ie point 2) which is intermediate in distance order with the heights of the other points (ie point 1, 3), the point corresponding to the middle point (point 2) is the selected three points. It can be determined whether it is the highest point among the points (points 1, 2, 3). In FIG. 21, the height of the point 2 is the lowest among the points 1, 2, and 3, so that the point 2 is not determined as the vertex.

Next, the horizontal distance calculating unit 113 starts at point 2, where the horizontal distance between the point X and the reference line R or the intersection point C is the second smallest, and the three points in the ascending order of the horizontal distance. You can select the points 2, 3 and 4 you entered.

Then, the horizontal distance calculation unit 113 is the second of the selected three points (points 2, 3, 4) in the middle of the horizontal distance between the point (X) and the reference line (R) or intersection point (C) After comparing the height of point (i.e. point 3) with the height of other points (i.e. points 2, 4), the middle point (point 3) is selected from the three selected points (points 2, 3, 4) can determine whether the highest point. In FIG. 21, the height of the point 3 is the highest among the points 2, 3, and 4, and thus the point 3 may be determined as a vertex.

As described above, the horizontal distance calculator 113 compares the heights of the points by selecting three consecutive points in order of the horizontal distance between the point X and the reference line R or the intersection point C from 100 points. As a result of repeating the process of determining the back vertex, finally, the points 98, 99, and 100, which are the three largest horizontal distances, are selected to determine whether the middle point 99 is the highest point in the horizontal distance order. To perform the vertex determination process.

According to an embodiment, there may be a case where a plurality of vertices determined from a plurality of points X in the target areas 21 and 22 are present. For example, referring to FIG. 21, point 3 may be determined as a vertex from points 2, 3, and 4 consecutive in the horizontal distance order, and point 52 is a vertex from the points 51, 52, and 53 consecutive in the horizontal distance order. Points 99 may be determined as vertices from points 98, 99, and 100 consecutive in the horizontal distance order.

In this case, according to an embodiment of the present invention, when the horizontal distance calculator 113 has a plurality of highest points corresponding to the middle obtained from the plurality of points X, The point where the horizontal distance from the point C where the structure is located is the shortest may be determined as the vertex.

For example, referring to FIG. 21, the point 3, which is the highest point in the middle of the points 2, 3, and 4 in the order of the horizontal distance, has a horizontal distance of 480 from the point 51, the point C at which the structure is located. m, the highest point in the middle of the points 51, 52, 53 in the order of horizontal distance and the highest point 52 m in the middle of the point 51, 52, 53 in the order of horizontal distance While the highest point 99 has a horizontal distance of 480 m from the point 51, the horizontal distance calculator 113 corresponds to the middle and the highest point 3, 52, 99 where the structure is located. The point 52, the shortest horizontal distance from (C), can be determined as the vertex.

As a result, according to the exemplary embodiment of the present invention, the horizontal distance calculator 113 obtains only one vertex from the target areas 21 and 22.

Then, the horizontal distance calculator 113 may calculate a horizontal distance between the vertex and the point C where the structure is located.

Referring back to FIG. 1, the wind load calculation apparatus 100 may further include a topographic coefficient calculator 114.

The topographic coefficient calculator 114 may calculate a topographic coefficient based on a horizontal distance between the vertex and the point C at which the structure is located. According to the Korean Architectural Structural Standards (KBC) 2009, the topographic coefficient is the height of the vertex (H), the horizontal distance on the wind side (L _u ), the vertical distance on the wind side (H _d ), x) and the height z from the ground surface from which the design wind velocity is to be calculated. The topographic coefficient calculator 114 may calculate the topographic coefficient by using the horizontal distance between the vertex calculated by the horizontal distance calculator 113 and the point where the structure is located.

The above-described information collecting unit 111, target area setting unit 112, horizontal distance calculator 113 and topographic coefficient calculator 114 is composed of a processor for executing a program for calculating the wind load of the structure, for example, a CPU Can be. In addition, the program may be stored in the storage unit 12, and the wind load calculation apparatus 100 may load and execute the program from the storage unit 12.

Wind load calculation apparatus 100 according to an embodiment of the present invention may further include an output unit (14). The output unit 14 may output the horizontal distance calculated according to one embodiment of the present invention and provide the same to the user. According to an embodiment, the output unit 14 may include a display for visually displaying predetermined information such as an LCD and a PDP.

22 is a flowchart illustrating a wind load calculation method 300 according to an embodiment of the present invention.

The wind load calculation method may be performed by the wind load calculation apparatus 100 according to the embodiment of the present invention described above.

As illustrated in FIG. 22, the wind load calculation method 200 may include setting a target area using location and height information of a plurality of points in the target area 20 (S21), and vertex of the target area. It may include the step (S22) for calculating the horizontal distance between the points where the structure is located.

According to an embodiment, the target area 20 may include a point C at which the structure is located and may have a predetermined shape and size.

According to an embodiment of the present invention, the step of setting the target area (S21), the height difference or the horizontal difference between the highest point and the lowest point in the target area 20 around the point (C) where the structure is located The method may include setting the circular area having the radius of the length multiplied by the predetermined value as the radius to the target area 21.

According to another embodiment of the present invention, the step of setting the target area (S21), the height difference or the horizontal difference between the highest point and the lowest point in the target area 20 around the point (C) where the structure is located A circular area having a radius multiplied by a predetermined value as a distance is set as the first area 21, and the highest point in the first area 21 with respect to the point C where the structure is located. A second area 22 having a radius multiplied by a preset value to a height difference or a horizontal distance between the lowest point in the target area 20 or the first area 21 is set as a target area 22. It may include the step.

According to an exemplary embodiment, the setting of the target area (S21) may include a height difference or a horizontal distance between the highest point and the lowest point in the target area 20 about the point C where the structure is located. A circular area having a radius multiplied by a preset value as a radius is set as the first area 21, and the highest point in the first area 21 and the object centered on the point C where the structure is located. Repeating the process of setting the circular area having the radius multiplied by a predetermined value to the height difference or the horizontal distance between the lowest point in the area 20 or the first area 21 as the second area 22 And a preset value of a height difference or a horizontal distance between the highest point in the N-th region and the lowest point in the target region 20 or the N-th region with respect to the point C where the structure is located. Multiply the length by half And setting the N-th region set to the target region. At this time, N is a natural number of 3 or more.

According to an embodiment of the present disclosure, in the setting of the target area (S21), the point C in which the structure is located is set as the target point, and the preset shape and size are centered around the target point. And setting the region 31 having the target region. The target area may be different from the target area. In other words, the setting of the target area (S21) may include setting a target area having a predetermined shape and size around the target point and different from the target area.

According to another exemplary embodiment of the present disclosure, in the setting of the target area (S21), an area having a predetermined shape and size is set as the first area 31 based on the point C at which the structure is located. And set the highest point H _{1 in} the first area 31 as the target point, and set the second area 32 having a predetermined shape and size around the target point as the target area. It may include the step.

According to an embodiment, the step of setting the target area (S21), the area having a predetermined shape and size around the point (C) where the structure is located is set to the first area 31, the first The process of setting the region having a predetermined shape and size as the second region 32 based on the highest point H ₁ in the first region 31 is repeated to identify the highest point in the N-1 region. And setting an N-th region having a predetermined shape and size around the target point as a target area. At this time, N is a natural number of 3 or more.

The calculating of the horizontal distance (S32) may include determining the highest point in the target area as a vertex.

According to another embodiment of the present disclosure, the setting of the target region (S21) may include setting the first target region 211 and the second target region 212 in the target region 20. . In the calculating of the horizontal distance (S22), the first and second target areas 211 using position and height information of a plurality of points X in the first and second target areas 211 and 212. 212) calculating a reference value for each point in the image, determining a vertex based on the reference value, and calculating a horizontal distance between the vertex and the point C at which the structure is located. .

The first and second target regions 211 and 212 are symmetric about a point C where the structure is located and are centered on two sectors having a preset vertex angle, or a point C where the structure is located. Can be two straight lines that are symmetrical.

The calculating of the reference value for each point may include subtracting a horizontal distance between each point in the first target area 211 and a point C at which the structure is located from a preset initial value, and the initial value. And adding a horizontal distance between each point in the second target area 212 and a point C at which the structure is located.

According to an embodiment of the present disclosure, the determining of the vertex comprises: selecting a target point among the plurality of points (X), at least one point in descending order of the reference value based on the reference value of the target point, and Selecting one or more points in ascending order of the reference value; And when the highest point among the selected points is the target point, determining the target point as the vertex.

In this case, the wind load calculation method 200 selects a target point in order of short horizontal distance between the points C where the structure is located among the plurality of points X, but the selected target point is not determined as a vertex. In this case, the vertex determination process may be repeated by selecting a point having a long horizontal distance between the point C where the structure is located next to the target point as the next target point.

According to another exemplary embodiment of the present disclosure, the determining of the vertex may include selecting three or more points consecutive to a reference value among the plurality of points (X), and a reference value of the highest point among the selected three or more points. In the case of a middle value among the reference values of the selected three or more points, determining the point as a vertex candidate, and the horizontal distance between the point (C) where the structure is located among the vertex candidates obtained from the plurality of points is the shortest Determining a point as a vertex.

According to another exemplary embodiment of the present disclosure, the determining of the vertex may include: a target point among the plurality of points (X), one or more points having a reference value smaller than the target point, and one or more reference values larger than the target point. Selecting a point; assigning to the selected points two-dimensional coordinates, wherein x-axis coordinates are reference values and y-axis coordinates are the height of each point; Calculating an interpolation equation that passes two-dimensional coordinates for the selected points; When the equation has a maximum value between the minimum x-axis coordinates and the maximum x-axis coordinates of the selected points, and determine the virtual point having the maximum value as the height with the x-axis coordinates corresponding to the maximum value of the equation as a vertex It may include a step.

In this case, the wind load calculation method 100 selects a target point in order of a short horizontal distance between the points C where the structure is located among the plurality of points X, but the equation is the minimum x-axis coordinates of the selected points. If the maximum value does not have a maximum value between the x-axis coordinates, the vertex determination process may be repeated by selecting a point having a long horizontal distance between the point C where the structure is located next to the target point as the next target point.

According to another embodiment of the present invention, the determining of the vertex comprises: selecting three or more points consecutive from the plurality of points (X) in order of reference value; assigning two-dimensional coordinates, wherein the x-axis coordinates are reference values of each point and the y-axis coordinates are the height of each point, to the selected three or more points; Calculating an interpolation equation that passes two-dimensional coordinates for the selected three or more points; When the equation has a maximum value between the minimum x axis coordinates and the maximum x axis coordinates of the selected three or more points, a vertex candidate having a virtual point having the maximum value as the reference value and the x axis coordinate corresponding to the maximum value of the equation Determining as; The method may include determining, as a vertex, a point having a shortest horizontal distance between the point C where the structure is located among the vertex candidates obtained from the plurality of points X.

According to an exemplary embodiment, the setting of the target area (S21) may include parallel lines 201 and 202 spaced apart by a predetermined length L in the target area 20, or an intersection line having a preset vertex angle θ. Setting an area between 203 and 204 as a target area.

According to an embodiment of the present invention, the step of setting the areas 21 and 22 between the parallel lines 201 and 202 or the intersecting lines 203 and 204 in the target area 20 as the target area may include: The method may include setting the area 21 between the parallel lines 201 and 202 facing each other in the target area 20 with the point C located therebetween as the target area.

According to another exemplary embodiment of the present disclosure, the setting of the areas 21 and 22 between the parallel lines 201 and 202 or the intersecting lines 203 and 204 in the target area 20 as the target area may include: And setting the area 22 between the intersection lines 203 and 204 that intersect each other at the point C at which the structure is located within 20 as the target area.

The length L between the parallel lines 201 and 202 may be zero or more. The vertex angle θ between the intersection lines 203 and 204 may be 0 or more and 180 ° or less.

According to this embodiment, determining the vertex based on the position and height information of the plurality of points X in the target area includes determining the highest point among the plurality of points X as the vertex. can do.

According to another exemplary embodiment of the present disclosure, the determining of the vertex may include selecting three or more points consecutive in the order of the horizontal distance between the point X and the reference line R among the plurality of points X, or Selecting three or more points consecutive in the order of the horizontal distance between X) and the intersection point C, and in the order of the horizontal distance between the point X and the reference line R or the intersection point C among the selected three or more points. If the point corresponding to is the highest point, the method may include determining the point as a vertex. The reference line R is a line perpendicular to the parallel lines 201 and 202 while passing through the point C where the structure is located.

In this case, in the case of a point located on one side 211, 221 around the reference line R or the intersection point C in the target area 21, 22, the corresponding point and the reference line R or the intersection point The horizontal distance between (C) is a negative number, and in the case of a point located on the other side 212, 222 around the reference line R or the intersection point C in the target area 21, 22, the corresponding point and the reference line (R) or the horizontal distance between the intersection point (C) may be positive.

Here, if the number N of the selected points is odd, the point corresponding to the middle means (N + 1) / 2th point. If the number N of the selected points is even, the point corresponding to the middle point is N / 2. The first point or (N / 2) + the first point.

According to an embodiment, the determining of the vertex may include: when the highest point corresponding to the middle obtained from the plurality of points (X) is a plurality, a point (C) at which the structure is located among the plurality of highest points. And determining the point where the horizontal distance with the shortest distance is shortest.

According to an embodiment of the present invention, the wind load calculation method 200 may further include calculating a topographic coefficient based on a horizontal distance between the vertex and the point C at which the structure is located.

The wind load calculation method 200 according to the embodiment of the present invention described above may be manufactured as a program to be executed in a computer and stored in a computer-readable recording medium. The computer readable recording medium includes all kinds of storage devices in which data that can be read by a computer system is stored. Examples of computer-readable recording media include ROM, RAM, CD-ROM, magnetic tape, floppy disk, optical data storage device, and the like. In addition, the wind load calculation method 200 according to the embodiment of the present invention described above may be implemented as a computer program stored in a medium to be combined with the computer to execute.

According to the wind load calculation device and method, the surrounding features which are the wind load calculation criteria may be determined objectively and quantitatively, not determined by the designer's subjective judgment. As a result, a wind load that can reasonably reflect the influence of the surrounding topography of the structure on the wind can be calculated, so that the safety and economic efficiency of the structure can be improved.

Claims (19)

1. A target area setting unit configured to set a target area using location and height information of a plurality of points in the target area; And

   A horizontal distance calculator for calculating a horizontal distance between a vertex of the target area and a point at which the structure is located;

   Wind load calculation device comprising a.
2. The method of claim 1,

   The target area includes a point at which the structure is located and has a predetermined shape and size.
3. The method of claim 1,

   The target area setting unit:

   Setting a circular area as a radius of a length obtained by multiplying a predetermined value by a height difference or a horizontal distance between the highest point and the lowest point in the target area around the point where the structure is located;

   A circular area having a radius of a length multiplied by a predetermined value to a height difference or a horizontal distance between the highest point and the lowest point in the target area around the point where the structure is located is set as the first area, and the structure A second area whose radius is a length obtained by multiplying a predetermined value by a height difference or a horizontal distance between the highest point in the first area and the target area or the lowest point in the first area with respect to the point where the position is located. Set as the target area, or

   A circular area having a radius of a length obtained by multiplying a predetermined value by a height difference or a horizontal distance between the highest point and the lowest point in the target area around the point where the structure is located is set as the first area. A circular area whose radius is a length obtained by multiplying a predetermined value by a height difference or a horizontal distance between the highest point in the first area and the target area or the lowest point in the first area with respect to the point at which the position is located; Repeat the process of setting to the second area, the height difference or the horizontal distance between the highest point in the N-1 region and the lowest point in the target region or the N-1 region around the point where the structure is located And an Nth area having a radius multiplied by a predetermined value as the target area.
4. The method of claim 1,

   The target area setting unit:

   And setting a target point using location and height information of a plurality of points in the target area, and setting an area having a predetermined shape and size around the target point as the target area.
5. The method of claim 4, wherein

   The target area setting unit:

   Set the point where the structure is located as the target point, and set an area having a predetermined shape and size around the target point as the target area;

   An area having a predetermined shape and size is set as a first area based on a point where the structure is located, and the highest point in the first area is set as the target point, and a predetermined shape around the target point. Setting a second area having a size and a size as the target area, or

   An area having a predetermined shape and size is set as a first area based on a point where the structure is located, and an area having a predetermined shape and size is set as a second area around a highest point in the first area. Repeating the above steps to set the highest point in the N-th area as the target point, and set the N-th area having a predetermined shape and size around the target point as the target area.
6. The method of claim 1,

   The horizontal distance calculation unit:

   And a wind load calculating device determining the highest point in the target area as the vertex.
7. The method of claim 1,

   The target area setting unit:

   Setting a first target area and a second target area in the target area;

   The horizontal distance calculation unit:

   Subtract the horizontal distance between each point in the first target area and the point at which the structure is located to a preset initial value, and calculate the horizontal distance between each point in the second target area and the point at which the structure is located at the initial value. And calculating a reference value for each point and determining a vertex based on the reference value.
8. The method of claim 7, wherein

   The first and second target regions are:

   Two sectors symmetric about a point at which the structure is located and having a preset vertex angle; or

   Two straight lines symmetric about a point at which the structure is located;

   Wind load calculation device.
9. The method of claim 7, wherein

   The horizontal distance calculation unit:

   Selecting a target point from among a plurality of points in the first and second target areas, and selecting one or more points in descending order of the reference value around the reference value of the target point and one or more points in ascending order of the reference value; And determining the target point as the vertex when the highest point among the selected points is the target point.
10. The method of claim 1,

    The target area setting unit:

    Set an area between the parallel lines spaced apart by a predetermined length in the target area or an intersection line having a preset vertex angle as the target area,

    The horizontal distance calculation unit:

    Selecting three or more points consecutive in the order of a horizontal distance between the point and a reference line orthogonal to the parallel line while passing through the point where the structure is located, among a plurality of points in the target area; Select at least three consecutive points in order of the horizontal distance between the point and the intersection of the intersection lines;

    If the point corresponding to the middle point in the order of the horizontal distance between the point and the reference line or the intersection point among the selected three or more points is the highest point, the wind load calculation apparatus determines the point.
11. The method of claim 10,

    The target area setting unit:

    Setting the area between the parallel lines facing each other in the target area with the point where the structure is located therebetween, or

    And an area between intersection lines which cross each other at the point where the structure is located in the target area as the target area.
12. The method of claim 10,

    The length between the parallel lines is zero or more, or

    The vertex angle between the crossing lines is 0 or more and 180 degrees or less.
13. The method of claim 10,

    In the case of a point located on one side of the reference line or the intersection point within the target area, a horizontal distance between the corresponding point and the reference line or the intersection point is negative,

    In the case of a point located on the other side with respect to the reference line or the intersection in the target area, the horizontal distance between the point and the reference line or the intersection is a positive number.
14. The method of claim 10,

    The horizontal distance calculation unit:

    When there are a plurality of highest points corresponding to the middle points obtained from a plurality of points in the target area, the wind load determining a point having the shortest horizontal distance from the point where the structure is located among the plurality of highest points is the vertex. Output device.
15. The method of claim 1,

    And a topographic coefficient calculator for calculating a topographic coefficient based on a horizontal distance between the vertex and the point where the structure is located.
16. In the method for calculating the wind load applied to the structure using the wind load calculation device including a target area setting unit and a horizontal distance calculation unit,

    Setting a target area using location and height information of a plurality of points in the target area; And

    Calculating a horizontal distance between a vertex of the target area and a point at which the structure is located;

    Wind load calculation method comprising a.
17. The method of claim 16,

    The setting of the target area may include:

    Setting a first target area and a second target area in the target area;

    Computing the horizontal distance is:

    Subtract the horizontal distance between each point in the first target area and the point at which the structure is located to a preset initial value, and calculate the horizontal distance between each point in the second target area and the point at which the structure is located at the initial value. Adding up to calculate a reference value for each point; And

    Determining a vertex based on the reference value;

    Wind load calculation method comprising a.
18. The method of claim 16,

    The setting of the target area may include:

    Setting an area between the parallel lines spaced apart by a predetermined length in the target area or an intersection line having a preset vertex angle as the target area,

    Computing the horizontal distance is:

    Selecting three or more points consecutive in the order of a horizontal distance between the point and a reference line orthogonal to the parallel line while passing through the point where the structure is located, among a plurality of points in the target area; Selecting at least three consecutive points in order of a horizontal distance between the point and the intersection of the intersection lines; And

    Determining a point as the vertex when the point corresponding to the middle point in the order of the horizontal distance between the point and the reference line or the intersection point is the highest point among the selected three or more points;

    Wind load calculation method comprising a.
19. In a computer-readable recording medium,

    Setting a target area using location and height information of a plurality of points in the target area; And

    Calculating a horizontal distance between a vertex of the target area and a point at which the structure is located;

    The recording medium having a program recorded thereon for executing a method for computing a wind load applied to a structure comprising a computer.

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