JP2014109933A - Reinforcement arrangement correction processing device in three-dimensional reinforcement arrangement simulation system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To avoid interference between reinforcements without generating a new interference point in interference avoidance processing and without giving an attribute for each reinforcement.SOLUTION: A reinforcement arrangement correction processing device in a three-dimensional reinforcement arrangement simulation system includes: pairing means of creating a combination comprising two members including reinforcements on the basis of member information and member arrangement information held in storage means; distance measuring means of calculating a distance between the two members constituting the combination in a segment unit; closest point calculation means of deriving the closest point of the two members constituting the combination in a segment unit; interference point extraction means of extracting an interference point so that the distance between the interference point and the closest point of the two members constituting the combination is within a regulated distance, and storing interference point information in the storage means; and interference avoidance means of deforming the reinforcements so as to detour them in a direction of avoiding the interference only in a regulated area before and after the interference point as a center.

Description

  The present invention relates to a system and a program for performing a bar arrangement simulation of a reinforcing bar structure, and more particularly, to a process for correcting a bar arrangement state based on an interference state between arranged reinforcing bars.

  Conventionally, various systems for drawing construction drawings are provided, and the efficiency of bar arrangement work according to a predetermined rule is achieved according to the design of each building structure. In such a bar arrangement work, there is a problem of avoiding interference between reinforcing bars. In the technique described in Patent Document 1 below, the interference of reinforcing bars in the level direction is detected in the initial arrangement state. The rebar level direction avoidance process is performed based on the pre-stored rule information, and the rebar interference process is detected based on the pre-stored rule information. It is like.

  Furthermore, in the technique described in the following Patent Document 2, in the interference check avoidance step, the three-dimensional bar arrangement updated by reflecting the information of the reinforcing bar moved or changed in order to avoid interference in the preceding concrete placement lot. Based on the model, a technique is disclosed in which the interference of the reinforcing bars in the next concrete placement lot can be checked to avoid the interference.

JP 2009-30403 A JP 2011-253484 A

However, the conventional system including the technique described in the above publication employs a technique for avoiding interference by translating the rebar alignment in which the interference is detected. There is a possibility of creating new interference.
For example, if the beam is moved to avoid interference with a column on the starting end side of the beam, a new interference point can be formed with the column on the end side.

  Thus, although the conventional method can eliminate the interference between simple reinforcing bars, for example, when there are a plurality of interference points between a plurality of reinforcing bars, the interference avoidance process easily becomes an infinite loop, As a solution process, there is a problem that the process must be terminated in an incomplete state where interference points remain.

  In addition, since the conventional technology performs a process of moving in a specified direction with a high possibility of avoiding mutual interference between reinforcing bars according to combinations of attributes such as beam bars or column bars for each reinforcing bar. Further, there is a problem that an attribute must be given to each reinforcing bar, and interference does not always avoid even if it moves in the specified direction.

  The present invention has been made in view of the above circumstances, and does not generate a new interference point in the interference avoiding process, and can avoid interference between reinforcing bars without giving an attribute to each reinforcing bar. An object of the present invention is to provide a bar arrangement correction processing apparatus in a system.

  A bar arrangement correction processing apparatus in a three-dimensional bar arrangement simulation system according to the present invention made to solve the above problems is a pair that makes a combination of two members including reinforcing bars from member information and member arrangement information held in a storage means A ring means, a distance measuring means for calculating the distance between two members constituting the combination in a line segment unit, a closest point calculating means for deriving the closest point of the two members constituting the combination in a line segment unit, and the combination Interference point extraction means for extracting an interference point whose distance between the nearest points of the two constituent members is within a specified distance and storing the interference point information in a storage means, and avoiding the interference only in the front and rear specified area centered on the interference point It is provided with the interference avoidance means which detours the said reinforcing bar in the direction to do.

  The interference avoiding means includes a detour means for detouring the reinforcing bar in a direction to avoid the interference only when the interfering reinforcing bar exceeds a predetermined length, and the interfering reinforcing bar is within a predetermined length. In some cases, the rebar may be provided with a moving unit that translates the reinforcing bar in a direction that avoids the interference.

  As a configuration example of the moving means, a member specifying means for specifying a reinforcing bar to be moved based on the presence or absence of an interference point, and a movement function for translating the reinforcing bar from the interference point information of the interference point in a direction to avoid the interference. A configuration comprising a function constructing unit that guides, a coordinate calculating unit that calculates a destination coordinate of a reinforcing bar to be moved using the movement function, and a coordinate applying unit that performs a process of translating the reinforcing bar to the guided destination coordinate. Can be mentioned.

  As an aspect of the detour means, a member specifying means for specifying a reinforcing bar to be detoured based on the presence or absence of an interference point, and a detour process is performed on a region extending from the interference point to a base point of a specified distance in the front-rear direction using the interference point as a moving point. A function providing means for deriving a movement function (matrix or the like) for moving the interference point in a direction to avoid the interference from the interference point information of the interference point; There is a technique including a coordinate calculation unit that calculates a destination coordinate of an interference point to be moved using a movement function, and a coordinate application unit that performs a process of moving the interference point to the derived destination coordinate. .

  The detour means includes a coefficient calculation means for calculating a deformation distance coefficient from a movement amount of an interference point necessary for avoiding interference and a bending angle allowed for a reinforcing bar, and a movement distance t of each part of the specified front-rear distance from the deformation distance coefficient and the reinforcing bar diameter. It is good also as a structure provided with the deformation | transformation distance calculation means to calculate.

  Further, in the configuration of the detour means, a dividing means that divides the reinforcing bar having the interference point forward and backward with the interference point in between, and an area over a prescribed distance before and after the division point (divided point) in the avoidance direction. It is good also as a structure provided with the bending means to move back and forth symmetrically, and the coupling means which reconnects the said dividing point. As an aspect of reconnection, an aspect in which the division points are reconnected after movement may be used, or a line segment may be provided between the division points b and b ′ in the relationship between the front and rear specified distance and the interference resolution distance described later. It may be connected by intervening (see FIG. 19).

  As a detouring mode, for example, the range of the specified distance before and after the interference point is the shape of one hypotenuse of an isosceles triangle having the base as the base, or all of the other hypotenuses on the one hypotenuse (FIG. 1 or FIG. 2) or a part or a line segment parallel to the base (see FIG. 20B) is transformed into a connected shape, and the range of the prescribed distance before and after the interference point is a half with the range as the diameter. A configuration in which one circular arc shape or a process in which all or a part of the other arc shape is connected to the one arc shape is deformed can be given (see FIG. 22).

  A circular arc of each inscribed circle is applied between two contact points of a polygonal apex angle b or base angles a and c that connect the interference point after movement by the coordinate application means and the base points before and after the interference point. It is good also as a structure provided with the bending | flexion relaxation means. The apex angle refers to an angle formed only by the alignment after detouring, and the base angle refers to an angle formed by the alignment before detouring and the hypotenuse after detouring (FIG. 22A). reference).

  A bar arrangement correction processing device and a bar arrangement correction processing program in a three-dimensional bar arrangement simulation system made to solve the above-described problems cause a computer to function as each specific means constituting the bar arrangement correction processing device. It is characterized by.

  The bar arrangement correction processing apparatus in the three-dimensional bar arrangement simulation system according to the present invention includes an interference avoidance unit that bypasses the reinforcing bar in a direction to avoid the interference only in the front-rear specified region of the interference point. Interference between reinforcing bars can be avoided while avoiding the generation of new interference points.

  Further, the interference avoiding means includes a detour means for detouring the reinforcing bar in a direction to avoid the interference only in the front and rear specified area centered on the interference point when the interfering reinforcing bar exceeds a specified length, and the interfering reinforcing bar is specified. By providing a moving means for translating the reinforcing bar in a direction to avoid the interference when it is within the long position, it is possible to select an effective interference avoiding process that avoids the complicated work of deformation of the reinforcing bar.

  By providing the interference avoiding means with detour means for transforming the range of the specified distance in the front-rear direction of the interference point into a shape connecting a pair of oblique sides of an isosceles triangle with the range as the base, relatively easy processing can be performed. Therefore, the range of the specified distance before and after the interference point can be bypassed in an effective manner.

  The detour means includes a coefficient calculation means for calculating a deformation distance coefficient from a movement amount of an interference point necessary for avoiding interference and a bending angle allowed for a reinforcing bar, and a movement distance t of each part of the specified front-rear distance from the deformation distance coefficient and the reinforcing bar diameter. By providing the deformation distance calculation means for calculating the above, it is possible to adopt an effective deformation distance according to the interference situation for interference avoidance.

It is explanatory drawing and flowchart which show an example of the detouring process of the bar arrangement correction processing apparatus in the three-dimensional bar arrangement simulation system by this invention. It is explanatory drawing and flowchart which show an example of the detouring process of the bar arrangement correction processing apparatus in the three-dimensional bar arrangement simulation system by this invention. It is a flowchart which shows an example of (A): parallel movement process and (B): detouring process of the bar arrangement correction processing apparatus in the three-dimensional bar arrangement simulation system according to the present invention. It is a flowchart which shows an example of the information update process after the interference avoidance process in the bar arrangement correction processing apparatus in the three-dimensional bar arrangement simulation system by this invention. It is a flowchart which shows an example of the verification process of the interference avoidance process in the bar arrangement correction processing apparatus in the three-dimensional bar arrangement simulation system by this invention. It is a block diagram which shows an example of the bar arrangement correction processing apparatus in the three-dimensional bar arrangement simulation system by this invention. It is a flowchart which shows an example of the arrow creation process in the bar arrangement correction processing apparatus in the three-dimensional bar arrangement simulation system by this invention. It is a flowchart which shows an example of the nearest point calculation process and interference point extraction process in the bar arrangement correction processing apparatus in the three-dimensional bar arrangement simulation system by this invention. It is a flowchart which shows an example of the nearest point calculation process and interference point extraction process in the bar arrangement correction processing apparatus in the three-dimensional bar arrangement simulation system by this invention. It is a flowchart which shows an example of the interference point extraction process with respect to the continuous interference point in the bar arrangement correction processing apparatus in the three-dimensional bar arrangement simulation system by this invention. It is a flowchart which shows an example of the pairing process in the bar arrangement correction processing apparatus in the three-dimensional bar arrangement simulation system by this invention. It is a flowchart which shows an example of the interference point edit process in the bar arrangement correction processing apparatus in the three-dimensional bar arrangement simulation system by this invention. It is a flowchart which shows an example of the emphasis display process in the bar arrangement correction processing apparatus in the three-dimensional bar arrangement simulation system by this invention. It is a flowchart which shows an example of the avoidance target detection process in the bar arrangement correction processing apparatus in the three-dimensional bar arrangement simulation system by this invention. It is a flowchart which shows an example of the avoidance target detection process in the bar arrangement correction processing apparatus in the three-dimensional bar arrangement simulation system by this invention. It is a flowchart which shows an example of the process which extracts what has given two avoidance arrows with respect to one interference point in the bar arrangement correction processing apparatus in the three-dimensional bar arrangement simulation system by this invention. It is a photograph which shows an example of the screen in the bar arrangement correction processing apparatus in the three-dimensional bar arrangement simulation system by this invention. It is a table | surface which shows an example of the information structure in the bar arrangement correction processing apparatus in the three-dimensional bar arrangement simulation system by this invention. It is explanatory drawing which shows an example of the detour in the detour process of the bar arrangement correction processing apparatus in the three-dimensional bar arrangement simulation system by this invention. It is explanatory drawing which shows an example of the detour in the detour process of the bar arrangement correction processing apparatus in the three-dimensional bar arrangement simulation system by this invention. It is explanatory drawing which shows an example of the detour in the detour process of the bar arrangement correction processing apparatus in the three-dimensional bar arrangement simulation system by this invention. It is explanatory drawing which shows an example of the detouring form (including a bending relaxation process) in the detouring process of the bar arrangement correction processing apparatus in the three-dimensional bar arrangement simulation system according to the present invention.

  Hereinafter, a three-dimensional reinforcement simulation system according to the present invention (a so-called computer input device or a recording medium is used to input various information, and an image is displayed on the display screen while the three-dimensional reinforcement arrangement state is displayed. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of a bar arrangement correction processing apparatus and a program thereof in FIG. 1 will be described in detail with reference to the drawings.

  The bar arrangement correction processing apparatus shown in FIG. 1 uses a so-called computer equipped with an arithmetic unit, inputs various information with an input device such as a keyboard and a mouse, and displays the image on the display screen while displaying the image as a three-dimensional image. In a system for simulating a bar arrangement state (for example, the system described in the patent document), a storage unit that records registration information and interference point information, and a bar arrangement group that is stored as the registration information in the storage unit A pairing means for creating a combination of one reinforcing bar and one reinforcing bar or a steel frame (hereinafter referred to as a member pair) and a distance between members X and Y constituting the member pair are calculated in line segments. The distance measuring means, the nearest point calculating means for deriving the nearest point between the members X and Y constituting the member pair in line units, and the distance between the nearest points between the members X and Y constituting the member pair are regulated. Comprising an interference point extracting means for extracting an interference point within the distance, the interference avoiding means for avoiding interference of miso before and after a defined area of the interference points (see FIGS. 6 and 11).

  Here, the line segment means that each straight line component obtained by dividing a straight line portion such as a reinforcing bar into straight line components every fixed length, or dividing a curved line portion into straight line components satisfying the accuracy that satisfies the specifications of the apparatus. Point to.

  The storage means records body information, member information, member arrangement information (including reinforcement arrangement information and steel frame arrangement information) and the like as the registration information, and adopts a chip, a magnetic disk, or other configuration. (See FIG. 18).

  The member information includes reinforcing bar data and steel frame data (hereinafter referred to as “member data” together).

  The reinforcing bar data in the example includes data indicating display specifications such as a member index, a linear shape, a name, a reinforcing bar radius, and a display transparency of each reinforcing bar. It consists of data indicating display specifications such as steel member index, closed polygon group (polygon group forming the surface of the steel frame), name, and surface transparency.

The interference point information includes interference point data and arrow data.
The interference point data in the example includes, for each interference point, the index of the interference point, one of the two points constituting the interference point: the coordinates of the point PX, and the two points constituting the interference point. The other: the coordinates of the point PY, the member index X: the index X of the member including the point PX, and the member index Y: the index of the member Y including the point PY.

  The arrow data in this example includes the arrow index, the interference point index, the start point (points having the same coordinates as the interference points PX and PY) and the end point (for example, PX + V) × q and PY + V × q), distance between interference points (| PX−PY |), member index α of a member including one of the interference points, member index β including another point of the interference point, and interference A resolution distance (a movement distance sufficient to resolve the current interference state) is provided.

  In this example, as described above, a unique index (name (code or the like)) is assigned to each piece of information, and the registration information includes a unique index (member index) such as a reinforcing bar or steel frame and the above-described information. A line segment constituting the member or a closed polygon or an index (line segment index) unique to the closed polygon line (hereinafter referred to as a line segment) is given, and for the interference point information, individual interference point pairs are provided. A unique interference point index is assigned to each of the arrows, and a unique arrow index is assigned to each avoidance arrow for convenience of processing.

<Avoidance target detection process>
Pairing processing, distance measurement processing, nearest point calculation processing, and interference point extraction processing are performed for a reinforcing bar (hereinafter referred to as a registered reinforcing steel) or a steel frame (hereinafter referred to as a registered steel frame) provided as the registration information in the storage means. And guide the interference point to be avoided.
The guided interference points are each stored in the storage means as interference point data (see FIG. 8 or FIG. 9).

<Pairing process>
The pairing means includes a member pair having one reinforcing bar and one reinforcing bar or steel frame (hereinafter referred to as a member) as a unit from among the registered reinforcing bars or registered steel frames provided as the registration information in the storage means. Create (see FIG. 11).

  At that time, it is possible to make a brute force member pair for all members, or to make a brute force member pair for a limited member (hereinafter referred to as a designated member) designated by a region designation operation or the like. it can.

  In the avoidance target detection process in this example, the registered reinforcing bars specified by the individual input information by the mouse click operation or the registered reinforcing bars included in the screen area specified by the input information by the drag operation are extracted from the storage means. Make a member pair with the specified reinforcing bars.

[Screen area specification processing]
The avoidance target detection process in the interference avoidance process in the example includes a process of deriving a rectangle (rectangle) whose diagonal is a line connecting the start point and the end point of the drag from the screen coordinates of the mouse, and a rectangular parallelepiped that gives a depth to the rectangle A process of guiding, a process of converting the outer edge of the rectangular parallelepiped into a real coordinate by a transformation matrix, and a rebar that places a real coordinate inside the outer edge of the rectangular parallelepiped are detected from the registration information, and each of them is used as a designated member in the contents of the member data Based on this, the predetermined processing (pairing processing, distance measurement processing, closest point calculation processing, and interference point extraction processing) is performed.

<Distance measurement processing>
The distance measuring means is a unit of line segment (line segment distance) and a distance between the members X and Y constituting the member pair for the member pair consisting of the member X and the member Y made by the pairing means. It calculates with (distance between members) (refer FIG.8 and FIG.9).

  That is, the distance measuring unit refers to the line segment data of the members constituting the member pair, and performs pairing in units of line segments of the members constituting the member pair (hereinafter referred to as the line segment pair created thereby). And a process of calculating the distances of all line segment pairs obtained by the pairing (hereinafter referred to as line segment distances).

On the other hand, the line segment data is obtained by appropriately dividing the straight line portion or the curved portion of the member, the respective line segments obtained by dividing, or the end point coordinates of each closed polygon line constituting the closed polygon group, and Contains the member index of the member that contains the line segment.
In this example, for each member pair, the linear portion of the reinforcing bar or the steel frame is divided into line segments for each fixed length by the replacement means, or a line that satisfies the accuracy that satisfies the curved portion as the specifications of the device. By dividing into segments, the concept of line segments as components of each member is given, and each line segment data is stored in the buffer of the storage means.

[For reinforcing bars and reinforcing bars]
In the case of the reinforcing bar X and the reinforcing bar Y, when the pair of line segments is parallel, the closest point is the end point of one line segment and the leg of the perpendicular line from the end point to the other line segment. pX and pY are stored, and the distance between the nearest points pX and pY is stored as a line segment distance in the buffer of the storage means (see FIG. 8). When the reinforcing bar X and the reinforcing bar Y are on the extension line, the distance between the closest points pX and pY is processed as infinite, that is, a distance that does not require correction.

[For reinforcing bars and steel frames]
The distance measurement process in the case of the reinforcing bar X and the steel frame Y is performed separately depending on whether or not the line segment of the specified reinforcing bar intersects with the closed polygonal surface.

  That is, when the line segment of the specified reinforcing bar and the closed polygonal plane intersect, the intersection points are set as the nearest points pX and pY, while when the line segment of the specified reinforcing bar and the closed polygonal plane do not intersect, The point between the end point of the specified reinforcing bar line and the closed polygonal line (the outer edge line of the closed polygon) is the shortest distance between the two points, or the end point of the specified reinforcing bar line segment is lowered to the closed polygonal surface. The point with the shortest distance among any of the legs up to the vertical line is set as the nearest point pX, pY, and the distance between the nearest points is stored as a line segment distance in the buffer of the storage means (see FIG. 9). .

<Nearest point calculation process>
The nearest point calculating means compares line segment distances of the line segment pairs calculated by the distance measuring means (distance between the nearest points pX and pY) with each member pair unit, and a combination of the closest points (hereinafter, The nearest point PX, PY in the member pair is referred to as the nearest point PX, PY, the distance between the nearest points (hereinafter referred to as the inter-member distance), and the coordinates of the nearest points PX, PY (hereinafter, the nearest point). Is stored in the buffer of the storage means.

<Interference point extraction processing>
The interference point extraction means extracts the closest point pair (nearest point PX, PY) whose distance between the members is within a specified distance from the nearest point pair information as the interference point PX, PY, and information on the interference point pair (member The distance between the interference points and the coordinates of the interference points PX and PY) is stored in the storage means as the interference point data together with the information described above, such as the interference point index, and a member constituting the interference point by the display means (hereinafter, interference member) A list of diameters and the number of interference point pairs, a three-dimensional image display in which the interference member is emphasized, and the avoidance arrow indicating the direction in which the interference points PX and PY should be moved are displayed. The arrow data is created (see FIG. 7).

  When the interference points PX and PY are not the same point, the directions in which the interference points PX and PY should be moved are two opposite directions of the vector connecting the interference points PX and PY, that is, the interference members are separated from each other. If there are two directions and the same point, the cross product direction is obtained from the line direction vector of the line segment including the interference points PX and PY, and the positive and negative directions are obtained.

  In this case, the interference point data includes the interference point index, the coordinates of the nearest point PX and the coordinates of the nearest point PY constituting the interference point, and the index X (member index of the member X including the nearest point PX) and the index Y. (Member index of member Y including nearest point PY) (see FIG. 8 or FIG. 9).

A predetermined highlighting process is appropriately performed on the interference member including the interference point detected as described above.
The highlighting process in this example is to output display data that gives the interference member a color, tone, or pattern that is different from that of other members. As a specific example, for all members having an interference point, it is confirmed whether the member index of those members is registered in the interference point information (interference point data) of the storage means. Display data with low transparency is output, and if it does not exist, display data with high transparency is output (see FIG. 13).

When the interference point is continuous over a predetermined length for one member pair, the following processing is performed.
<Interference point extraction processing for successive interference points>
When detecting successive interference points (a series of interference points) for the member pair created by the pairing means, all steps from the start point to the end point of one interference member (unit length set for convenience of processing) ), An interference point is extracted by the following distance measurement process and interference point extraction process (see FIG. 10).

  At this time, the final search number Max is obtained by dividing the length r of the one interference member (for example, the reinforcing bar) by the length m of the predetermined unit step at the time of the search, and the search number i With respect to the distance s from the starting point of the member multiplied by the length m, until the final detection number Max is reached, the distance measuring process determined by the distance measuring means and the interference point extracting means determined for the reinforcing bar or the steel frame as described above Repeat the interference point extraction process.

In each of the interference point extraction processes repeated as described above, the distance measurement process determines the distance between the two members X and Y constituting the member pair for each member pair created by the pairing means in steps. Calculate with
That is, in the case where the interference points are continuous, the distance measurement processing obtains the length from the position of the distance s from the starting point of the one interference member to the leg of the perpendicular dropped on the other interference member, and The distance between the members is X and Y.

  Next, in the interference point extraction processing, a pair of points consisting of the feet of the perpendicular whose distance calculated as described above is within a specified distance is extracted as an interference point, and the search number i at that time is extracted from the buffer of the storage means. Save to.

  This process starts the interference point extraction process from the starting point of the one interference member, increments the search number i every time the process is performed, and until the search number i reaches the final search number Max, It repeats extending the distance s in steps from the starting point of one interference member, and the extraction of the interference points between the one interference member and the other interference member is performed in steps.

  When the interference point extraction process up to the final step is completed, the interference point extraction unit searches for the continuous search numbers from the search numbers stored in the buffer of the storage unit, and extracts the start and end points of the continuous search numbers. Then, a process (interference length measurement process) of multiplying the number of steps from the start end to the end by the unit step length m to obtain the distance of the interference section is performed.

  The display means cuts out the line segment of the interference section from the entire length of both interference members forming a member pair, and outputs the cut-out line segment as image data of a cylinder thicker than the reinforcing bar diameter other than the interference member (FIG. 10).

<Avoidance arrow display process>
[About interference point PX]
For the interference point PX, the avoidance arrow display process includes a process for calculating a vector VX (PXtoPY) from the interference point PY to the interference point PX (avoidance vector calculation process), and a vector having the same direction as the vector VX. The interference point PX is used as a starting point, and is displayed as an avoidance arrow of the length q (adjusted appropriately according to the display condition. Other lengths reflecting the distance between points (PX-PY distance) may be used). A process of displaying the solution distance as a character string (avoidance vector display process) and a process of saving the arrow data of the avoidance arrow in the storage unit are performed for all interference points designated by the region designation operation or the like.

  When the vector amount of the vector VX is 0, the avoidance vector calculation process obtains a unit vector PXV in the line segment direction starting from the interference point PX recorded in the interference point data X for the interference point PX. Similarly, also for the interference point PY, a unit vector PYV in the line segment direction starting from the interference point PY recorded in the interference point data Y is obtained, and the outer product (PXV × PYV) of the vector PXV and the vector PYV is calculated as the vector Let VX (see FIG. 7).

  The arrow data of the interference point PX in the example includes the start point (interference point PX), the end point (PX + VX × q in the example), the point-to-point distance (PX-PY distance), and the member index X (interference point PX). The member index of the member X including the start point of the avoidance arrow attached to (interference point PX), the member index Y (the member index of the member Y including the start point of the avoidance arrow attached to the other interference point PY), and interference. The solution distance (for example, the radius of interference rebar (rebar X) + the radius of other interference reinforcing bar (rebar Y) −the distance between points, in the case of a steel frame, calculation is performed with radius = 0)).

[About interference point PY]
For the interference point PY, the avoidance arrow display process includes a process for calculating a vector VY (PYtoPX) from the interference point PX to the interference point PY (avoidance vector calculation process), and a vector having the same direction as the vector VY. The interference point PY is used as a starting point, and is displayed as an avoidance arrow of a length q (adjusted appropriately according to the display condition. Other lengths reflecting the distance between points (PY-PX distance) may be used). A process of displaying the solution distance as a character string (avoidance vector display process) and a process of saving the arrow data of the avoidance arrow in the storage unit are performed for all interference points designated by the region designation operation or the like.

  When the vector amount of the vector VY is 0, the avoidance vector calculation process obtains a unit vector PYV in the line segment direction starting from the interference point PY recorded in the interference point data Y for the interference point PY. Similarly, also for the interference point PX, a unit vector PXV in the line segment direction starting from the interference point PX recorded in the interference point data X is obtained, and the vector product (PYV × PXV) of the vector PYV and the vector PXV is obtained as a vector. VY (see FIG. 7).

  The arrow data of the interference point PY in the example includes the start point (interference point PY) of the avoidance arrow, the end point (PY + VY × q in the example), the point-to-point distance (PY-PX distance), and the member index Y (interference point PY). The member index of the member X including the start point (interference point PY) of the avoidance arrow attached to). (Member index of member Y including start point of avoidance arrow attached to other interference point PX) and interference resolution distance (for example, radius of interference rebar (rebar Y) + other interference rebar (rebar X) radius−point) Distance, and in the case of a steel frame, it is calculated with radius = 0).

<Interference point list processing>
The process of displaying a list of interference members, for example, the diameter of interference bars and the number of interference points (interference point list information) is edited as follows by interference point editing processing by interference point editing means.
The interference point editing means refers to the interference point information, specifies a reinforcing bar or a steel frame including the interference points PX and PY from the member index X and the member index Y of the interference point data of each interference point, and refers to the member information Then, create a character string that means the specified reinforcing bar or steel frame, check whether the same character string indicating the member including the interference point PX, PY is stored in each interference point data, and if not, The character string meaning the specified pair of members and the number of interference points = 1 are stored, and if stored, the number of interference points is incremented and displayed (see FIG. 12).

  The interference point editing means sets the combination of codes of the members that interfere with each other and the number of the combinations as the character string in the form of code-code (number), for example, D25-D22 (3) or D25 -Character data to be displayed as H500 (2). Here, the code: D25 or D22 indicates a reinforcing bar of the standard D25 or D22, the code: H500 indicates a steel frame of the standard of H500, and (2) indicates the number of combinations thereof (FIG. 12 and FIG. 17).

<Avoidance target detection process>
[Specify avoidance arrows individually]
Designating an avoidance arrow means selecting and determining an avoidance arrow for performing interference avoidance processing or the like.
This process defines a straight line perpendicular to the screen from the coordinates of the cursor operated with a mouse or the like on the screen displaying the bar arrangement status, etc., and the trajectory of the straight line (hereinafter referred to as a support line) is realized by a transformation matrix. Convert to coordinates, detect the interference point within the specified distance from the straight line from the interference point information (interference point data), the arrow data of the avoidance arrow attached to the interference point (the coordinates of the start and end points of the avoidance arrow, Predetermined processing (interference avoidance processing, etc.) according to the contents of the distance between the interference points, the member index α of the member including one of the interference points, the member index β including the other point of the interference point, and the interference resolution distance) (See FIG. 14).

  The distance between the support line and the avoidance arrow (interference point) is, for example, the coordinate from the interference point to the foot of the perpendicular dropped on the support line, based on the coordinates detected from the interference point information (interference point data). Calculate based on

[Specify avoidance arrow by area]
The avoidance target detection process in the interference avoidance process in the example includes a process of deriving a rectangle (rectangle) having a diagonal line connecting the drag start point and the end point from the mouse screen coordinates, and a rectangular parallelepiped with a depth added to the rectangle. Processing, processing for converting the outer edge of the rectangular parallelepiped into a real coordinate with a transformation matrix, and detecting an interference point that places the actual coordinate in a range surrounded by the outer edge of the rectangular parallelepiped from interference point information (interference point data) Predetermined processing following the contents of the arrow data of the attached avoidance arrow is performed (see FIG. 15).

  In this example, during the avoidance target detection process by the area designation, the arrow data of the detected avoidance arrow is recorded in the arrow storage buffer of the storage means.

[Process to extract two avoidance arrows for one interference point]
It is determined whether or not all avoidance arrows (hereinafter referred to as target arrows; i = 1 to N) recorded in the arrow storage buffer include an interference point index. Substitute and save the code (index) of the target arrow.
In this way, an interference point in which the code of the target arrow is assigned to the arrow index β is an extraction target.
On the other hand, for those not including the interference point index, a new interference point index is provided and stored as the interference point index of the target arrow, and the code of the target arrow is substituted for the parameter of the arrow index α and stored ( FIG. 16).

<Interference avoidance means>
When the interference avoiding means detects an avoidance arrow through the avoidance target detection process, the interference avoidance means detects the interference when the interfering reinforcing bar exceeds the specified length for the interference point including the interference point index in the arrow data of the avoidance arrow. A detour means for detouring the reinforcing bar in a direction to avoid the interference only in the front and rear specified area centered on the point, and a parallel movement of the reinforcing bar in a direction to avoid the interference when the interfering reinforcing bar is within the specified long position The moving means is provided (see FIGS. 1 to 3).

<transportation>
The moving means is parallel to a member specifying means for performing processing for specifying a reinforcing bar or the like to be moved based on the presence or absence of an avoidance arrow, and a direction of avoiding the interference from the information of the avoidance arrow (interference point information of the interference point). Function construction means for performing a process for creating a movement matrix to be moved, coordinate calculation means for performing a process for calculating a movement destination coordinate of a reinforcing bar to be moved using the movement matrix, a reinforcing bar or the like for the derived movement destination coordinate Coordinate application means for performing a movement process is provided (see FIG. 3A).

<Bypass means>
The detour means is a member specifying means for performing processing for specifying a reinforcing bar or the like to be moved based on the presence or absence of an avoidance arrow, and a moving point specifying for performing processing for specifying an interference point to be detoured from the arrow data including the start point of the avoidance arrow Dividing the means and both sides sandwiching the interference point, using the front and rear end points (breaking points) as moving points, bending the front half and the rear half over the specified distance before and after the division point in the same direction (bending process) ) A bending means and a connecting means for connecting the dividing points of the first half and the second half (see FIG. 1).
By employing detour means for performing these processes, it is possible to prevent other interference points from being generated by the process of avoiding one interference point.

As a specific example of the detour processing in the detour means, for example, a specified distance from the interference point (start point of the arrow) is a cutout length L, and a triangle having the cutout length L as a base, or a double length 2L thereof as a base The shape which becomes the one hypotenuse which the isosceles triangle which carries out, or the detour form which deform | transforms into the shape which connected a pair of hypotenuse is mentioned (refer FIG. 1 or FIG. 2).
The latter is the shape of one hypotenuse of the isosceles triangle or the one of the isosceles triangle with the range of the specified distance before and after the interference point as the cutout length L and the range plus the cutout length L existing before and after the interference point. To the shape in which all or a part of the other hypotenuse or a line segment parallel to the base is connected to the hypotenuse (see FIG. 20).

[Bending treatment]
The bending process is performed by the bending means when the overall length of the reinforcing bar to be processed to avoid interference (the linear length of the reinforcing bar composed of one or more line segments) is shorter than the cut-out length L from the dividing point. .

  As a premise of the bending process, the bending means includes a coefficient calculating means for calculating a deformation distance coefficient from a movement amount of an interference point necessary for avoiding interference and a bending angle allowed for a reinforcing bar, and the front and rear from the deformation distance coefficient and the reinforcing bar diameter. A deformation distance calculating means for calculating a specified distance and a movement matrix for moving the interference point guided by the moving point specifying means from the information of the avoidance arrow (interference point information of the interference point) in a direction to avoid the interference are created. Function construction means for performing processing, coordinate calculation means for performing processing for calculating the movement destination coordinates of the interference point to be moved using the movement matrix, and coordinates for performing processing for moving the interference point to the derived movement destination coordinates Application means is provided (see FIG. 3B).

The coefficient calculation means sets a bending angle θ based on a movement amount (movement amount of movement point: interference resolution distance) T necessary for avoiding interference with reference to the arrow data, and a deformation coefficient: T × 1 / sin θ. The process which leads is performed.
When the bending angle falls within the elastic deformation, the maximum bending angle is obtained from the cross-section coefficient of the reinforcing bar, and when the cross-section coefficient is unknown or does not stick to the elastic deformation, the bending angle θ is appropriately determined (for example, sin 1 ° to sin 5 °, etc.).

When the bending angle θ is determined, the deformation distance calculating means determines an isosceles triangle having the bending angle θ as a base angle, and a cutout length L (the base of the isosceles triangle is proportional to the interference resolution distance T and the reinforcing bar diameter R). X1 / 2) is obtained by using the following equation, for example.
Cutting length: L = R × T × 1 / sin θ

When the cutout length L is determined, the distance K from the division point to the end point of each line segment that forms the cutout length L, using the point of the cutout length L as a base point,
Distance: K = K + connecting line segment length (link adjacent line segment lengths sequentially)
For each point of the distance K, the line segment end point movement amount t proportional to the distance is obtained using, for example, the following equation.
Line segment end point travel: t = K × T / L

  A movement matrix conforming to the line segment end point movement amount t obtained as described above is created by the function construction means, and the bending process based on the movement matrix is performed in the first half over a predetermined distance (cutout length) L before and after the division point. And after giving about the end point of each line segment contained in the latter half part, the front-and-rear end point of the said interference point is couple | bonded by the said coupling means, the divided | segmented reinforcing bar is connected, and a bending process is complete | finished.

  The above processing shows a method of bending a part of a reinforcing bar by bending it into an isosceles triangle shape. However, if it is not enough to make the base of twice the cutout length L, before and after the interference point The end points may be joined by the joining means (except when the bending process is performed on only one of the front and rear sides), and the processing may be avoided in a form lacking all or part of one oblique side.

<Reduction of bending angle>
In order to make the detouring process more realistic, it is desirable to perform bending angle relaxation processing by a bending relaxation means.
The first method of the bending angle relaxation process is to apply an arc of each inscribed circle between two contact points of the apex angle of the triangle and the outer angle of the two base angles. The application of the arc causes a shortage in the interference resolution distance corresponding to the distance from the tip of the applied arc to the apex of the apex angle before application (hereinafter, this situation is referred to as diminished). Therefore, when performing the above-described bending angle relaxation processing, it is necessary to set the interference resolution distance in consideration of the reduced amount.

The second method of the bending angle relaxation process is a Bezier curve process (see FIG. 21). In this process, vertices a (left base angle), b (vertical angle), c (right base angle) of the isosceles triangle are set, and Va (linear direction vertex a) is used as a vector from one end of the reinforcing bar to the other end. ), Vb (vector toward the linear direction vertex b), Vc ((vector ab + vector bc) / 2), start point: a, end point: b, control point A: a + Va × Fab, control point B : B + Vc × (−Fab) Bezier curve is set and replaced with ab and bc of the isosceles triangle.
In this way, when Bezier curve processing is used, the above-mentioned reduction is not caused.

<Detour processing for consecutive interference points>
When the detour processing performed as described above occurs not only for one point but over a certain length at intervals less than the double length 2L of the cutout length L, among the continuous detour forms, A detouring process that adopts a trapezoidal detour form may be performed by leaving only the hypotenuses located at both ends and connecting the vertices with a straight line by a coupling means.

[Interference avoidance process verification process]
In the interference avoidance process, first, for each interference point, the interference avoidance process based on the interference resolution distance included in the arrow data of the arrow attached to the interference point is performed, and then the interference with other members is detected. Then, the result is returned and a process of temporarily storing it in the buffer of the storage means is performed (see FIG. 5A).
In case there are multiple interference avoidance processes such as parallel movement and bending process for one interference point, or when two avoidance arrows are given for one interference point, one temporary movement result RET0 and the other An area for storing the temporary movement result RET1 is provided, and the result stored in the area is verified (see FIG. 5).

Specifically, if both are not appropriate, this process is terminated and the operator is notified. As specific notification means, an alarm, a message, or the like may be output in real time, or reinforcing bar information (information of the interference point pair) may be accumulated and stored in a storage means and displayed later in a dialog.
When both are appropriate, in the interference between the reinforcing bars, the interference avoiding process is performed on the reinforcing bar having a smaller diameter. In the interference between the reinforcing bar and the steel frame, the interference avoiding process is performed on the reinforcing bar, and in the interference between the steel frame and the steel frame, the interference avoiding process is performed on the smaller volume. When only one interference avoidance process is appropriate, the interference avoidance process is applied (see FIG. 5).

[Update processing of avoidance arrows after interference avoidance processing (arrow update processing)]
This process is a process of rearranging the avoidance arrow at a position after deformation when there is another interference point in the vicinity of the reinforcing bar moved or deformed by the interference avoidance process.

For example, first, the member index “N” of the moved or deformed member is obtained from the arrow data of the arrow moved by the interference avoidance process, and the member index X or the member index X or the member index X is registered from the interference point data registered in the storage unit. Information on the interference point pair having the member index [N] as the member index Y is collected.
For the interference point pair that holds the collected member index [N], it is determined whether the member index that holds [N] is index X or index Y, and is updated from the starting point of the specified avoidance arrow Guide the foot of the perpendicular line down to the line segment, and use that foot as the starting point of the new avoidance arrow.
With the above processing, the arrow update processing is terminated, and the avoidance arrow display processing is performed (see FIG. 4).

a left base angle, b apex angle, c right base angle,
A control point, B control point,
Va A vector from one end of the reinforcing bar to the other end (vector directed to the linear direction vertex a),
Vb A vector from one end of the reinforcing bar to the other end (vector going to the linear direction vertex b),
Vc A vector from one end of the reinforcing bar to the other end ((vector ab + vector bc) / 2),
m the length of the unit step, r the length of the interference member,
s The distance from the starting point on the reinforcing bar to be searched,
i Search number, Max r / m,

Claims (7)

Pairing means for creating a combination of two members including reinforcing bars from member information and member arrangement information held in the storage means;
Distance measuring means for calculating the distance between two members constituting the combination in units of line segments;
Nearest point calculation means for deriving the nearest point of two members constituting the combination in units of line segments;
An interference point extracting means for extracting an interference point whose distance between the closest points of the two members constituting the combination is within a specified distance and storing the interference point information in a storage means;
A bar arrangement correction processing apparatus in a three-dimensional bar arrangement simulation system, comprising interference avoidance means for bypassing the reinforcing bars in a direction to avoid the interference only in the front-rear specified region centered on the interference point.   The interference avoiding means includes a detouring means for detouring the reinforcing bar in a direction to avoid the interference only in the front and rear specified region centered on the interference point when the interfering reinforcing bar exceeds a specified length, and the interfering reinforcing bar has a specified length. 2. The bar arrangement correction processing apparatus in the three-dimensional bar arrangement simulation system according to claim 1, further comprising a moving unit that translates the reinforcing bar in a direction that avoids the interference when it is within the range. The moving means is
A member specifying means for specifying a reinforcing bar to be moved from the presence or absence of an interference point;
Function construction means for deriving a movement function for translating the rebar in a direction to avoid the interference from the interference point information of the interference point;
Coordinate calculation means for calculating the coordinates of the movement destination of the reinforcing bar to be moved using the movement function;
3. The bar arrangement correction processing apparatus in the three-dimensional bar arrangement simulation system according to claim 2, further comprising coordinate application means for performing a process of translating the reinforcing bar to the derived movement destination coordinates. The detour means is
A member specifying means for specifying a reinforcing bar to be detoured from the presence or absence of an interference point;
A bending means for performing a detouring process on a region extending from the interference point to a base point of a prescribed distance in the front-rear direction from the interference point as a movement point;
The bending means is a function constituting means for deriving a movement function for moving the interference point in a direction avoiding the interference from the interference point information of the interference point;
Coordinate calculating means for calculating the movement destination coordinates of the interference point to be moved using the movement function;
The bar arrangement correction in the three-dimensional bar arrangement simulation system according to any one of claims 2 and 3, further comprising coordinate application means for performing a process of moving the interference point to the derived movement destination coordinates. Processing equipment.   The detour means includes a coefficient calculation means for calculating a deformation distance coefficient from a movement amount of an interference point necessary for avoiding interference and a bending angle allowed for a reinforcing bar, and a movement distance t of each part of the specified front-rear distance from the deformation distance coefficient and the reinforcing bar diameter. The bar arrangement correction processing apparatus in the three-dimensional bar arrangement simulation system according to claim 4, further comprising a deformation distance calculation means for calculating The detour means is
A dividing means for dividing the reinforcing bar having the interference point back and forth across the interference point;
Bending means for symmetrically moving the region over the prescribed distance before and after the dividing point in the avoidance direction; and
The bar arrangement correction processing apparatus in the three-dimensional bar arrangement simulation system according to any one of claims 4 and 5, further comprising coupling means for reconnecting the division points.   Bending relaxation characterized by applying an arc of each inscribed circle between two contact points of an apex angle or a base angle of a polygon connecting an interference point after movement by the coordinate application means and a base point before and after the interference point The bar arrangement correction processing apparatus in the three-dimensional bar arrangement simulation system according to any one of claims 4 to 6, comprising means.