JPH11232320A - Design support system for steel frame structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a design support system for steel frame structure that can easily make a structural design without expertise and can easily perform its design change. SOLUTION: This design support system is provided with a process to input basic item data of a steel frame structure and a process to generate structural material data for the steel frame structure based on the basic item data and an arrangement rule of a prescribed material set in advance. In the case of generating the structural material data, when the basic item data is out of the prescribed material arrangement rule, correction data are inputted in an interactive form by an input screen and the basic item data already inputted are corrected.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a design support system for a structural design of a low-rise steel structure, and more particularly to the selection of structural members and the arrangement of the members.

[0002]

2. Description of the Related Art Conventionally, structural members of a steel building are selected and arranged by a building engineer, and there are many parts based on rules of thumb of the building engineer. Then, structural analysis is performed after selection of members by a building engineer. In addition, although the standardization of the details of the joints is progressing,
There are many types of standard details, and there are many cases that deviate from the standard details. In such a case, the details are created manually by each building engineer, and at present, complete standardization is not achieved.

[0003] In some cases, as in a prefabricated house, the size and plan of a building are limited, and the structural members of the building are limited to automate the structural design and creation of work data. . In this case, since the plan is limited, the degree of freedom of the plan is low. When a plan is changed, redesign is performed manually by a building engineer. In addition, since data up to component processing is created for each building scale and plan, it is extremely difficult to respond to changes in the plan (the amount of data is enormous, , Because there is a lot of data that needs to be checked).

[0004] Further, automation in factory processing is realized only in a limited number of processing steps with a large number of single-piece processed members. At present, there are many joint details using welding, so in factory processing work, there are many places where there are many mounting pieces using welding and complicated connections, so it is difficult to fully automate, The automation is limited.

[0005]

In the design of a steel frame building, as described above, details are often created manually by a building engineer, and the number of workers who can create the details is limited. However, there is a problem that it cannot be easily dealt with by a general contractor. Further, in a standardized building such as a prefabricated house, there is a problem that the degree of freedom of the plan is low, and it is difficult to change the plan. Further, there is a problem that it is difficult to completely automate factory processing operations, and automation can be performed only in a limited range.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and it is possible to easily design a structure without any specialized knowledge, and to easily change the design. An object of the present invention is to provide a design support system for a steel structure that can be used.

[0007]

(1) A design support system for a steel structure according to the present invention includes a step of inputting basic item data of a steel structure, and a predetermined member set in advance with the basic item data. Generating the structural member data of the steel structure based on the arrangement rule. (2) The design support system for a steel structure according to the present invention includes:
In the system of the above (1), in the step of generating the structural member data, when the basic matter data is out of the predetermined member arrangement rule, the correction data is input by an interactive input on the input screen, and the correction data is already input. This is to correct the input basic matter data. (3) The design support system for a steel structure according to the present invention includes:
In the above-mentioned systems (1) and (2), the structural analysis is performed using the structural member data of the steel structure, and a structural calculation document required for a confirmation application is created. (4) The design support system for a steel structure according to the present invention includes:
In the systems (1) and (2), after performing structural analysis using the structural member data of the steel structure and confirming the safety of the structural member, each of the structural members of the steel structure is used by using the structural member data of the steel structure. It generates the dimensions of the structural members, the positions of the holes, and the data of hardware to be fitted to each connection, and creates various drawing data, various tabulation tables, and factory processing data of the members. (5) A recording medium according to the present invention stores a program for processing the system according to any one of the above (1) to (4) by a computer.

In the present invention, it is assumed that the size of the building, the structure type and the structural members are limited, and
By automatically arranging the members in accordance with the member arrangement rules, the structural member data is automatically generated. For this reason,
ADVANTAGE OF THE INVENTION According to this invention, the arrangement | positioning equivalent to the conventional member arrangement | positioning by a construction engineer is possible, and the difference by the skill of an engineer is eliminated. Further, when the plan is changed, the basic design data is corrected, so that the structural design and the creation of the working data can be automatically performed.

Further, in the present invention, in order to simplify the standardization of the detail of the joint, all the joints are bolted by using metal joints (no welding is used). Therefore, since all member processing is performed only by cutting and drilling, it is easy to create member processing data and standardization is facilitated.

The specific terms used in the present invention are defined at the end of an embodiment of the present invention described later.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiment 1 FIG. FIG. 1 is a flowchart showing a processing procedure in the design support system for a steel structure according to the first embodiment of the present invention. The outline is as follows. (A) The system 1 (A1, A2 program) inputs basic matter data of a building (floor number, building height, outer wall position, partition position, atrium position, etc.), and according to the member arrangement rule, the structure 1 Perform automatic generation. When it is difficult to automatically generate the members (when the input data deviates from the member arrangement rules), the basic item data can be corrected and input through interactive input. After the automatic generation of the members is completed, the connection shape data of the joint at the end of each member is created.

Next, data necessary for the analysis system is created. (B) Using the data (structural calculation data) created by the system 1 described above, the structure is constructed by the system 2 (B1. Primary design program / check program, B2. Secondary design program / check program / E basic check program). Perform analysis. After the structural analysis is completed, a structural calculation report required for the building confirmation application is output.

(C) System 3 (C1. Machining processing database program, C2. Machining drawing automatic creation program)
Is the data created by system 1 (data for construction drawings)
By creating the dimensions of each member, the hole position, and the hardware data for each connection, various drawing data (building confirmation drawings, work drawings, parts drawings, construction drawings), various tabulation tables (members) , Joint hardware, bolts), and data for factory processing of members.

Next, the details of the system 1 will be described. (Input of Basic Data) FIG. 2 is a view showing a screen when inputting basic items in the system 1 described above. Default values are set for standard items, and when the values are changed, they are overwritten. This data is stored in an appropriate area of the storage device.

FIGS. 3 to 7 are explanatory views showing screens when basic data is visually input in the system 1. FIG.

FIG. 3 shows an input screen for determining an outer wall line on the second floor. In this input screen, an example is shown in which the first-floor part has already been input (depicted by a thin line), and the second-floor outer wall line is determined by drawing the second-floor part outer wall thereon. The outer wall of the second floor is drawn with a thick line here.

FIG. 4 shows an input screen for determining the roof of the second floor. The input screen shows an example in which the roof area is specified so as to cover the area surrounded by the outer wall of the second floor.

FIG. 5 shows an input screen for determining a balcony. This input screen shows an example in which a region where a balcony is provided in a region adjacent to the outer wall of the second floor is specified.

FIG. 6 shows an input screen when the wall of the second floor is determined. In this input screen, the wall on the second floor is shown by a bold line. Although the wall on the first floor is not explicitly shown here, the wall on the first floor is similarly input.

FIG. 7 shows an input screen for determining the floor of the second floor. On this input screen, the floor is determined by specifying the atrium (stairs) on the second floor. In the illustrated example, a stairwell and stairs are identified at the illustrated positions. The input screen for determining the floor of the first floor is the same as above.

FIGS. 8 and 9 are screens showing the state of thinning of the bearing wall (blind wall) in the arrangement of the vertical braces (S4) in the automatic member generation described later. explain.

It is assumed that the visual data input as described above is stored in an appropriate area of the storage device of the personal computer with its coordinates and line segments specified. That is, information on the height of the first and second floors (Z1, Z2), names as described later (X, Y),
It is specified by the length (pitch) or the like (see FIG. 34).

When the necessary basic data is input as described above, the process proceeds to a process of automatically generating members based on the basic data. In the process of automatically generating the next member, if it is determined that the basic data already input does not satisfy a certain condition (is out of the member arrangement rule), the display returns to the corresponding input screen of the basic data. You will be prompted to re-enter the data.

(Automatic Generation of Members) FIGS. 10 and 11 are flowcharts showing processing steps for automatically generating members. The processing steps will be described with reference to this flowchart. (S1) The floor area of each floor is calculated. This is determined based on the exterior wall line input for each floor as described above. (S2) Floor area and finishing material selection data obtained above (general roof, heavy roof, general floor, heavy roof: see FIG. 2), and other specially input load information (special load: for example, piano) Based on the arrangement, the required wall amount per area is calculated for each floor. If the previously input basic data does not satisfy the requirement, the necessary number is displayed, the display returns to the input screen corresponding to the basic data, and the user is prompted to input data again.

(S3) Arrangement of Absolute Beams (FIGS. 12 to 18) (S31) Arrangement of absolute beams in the blow-by section. (Figure 1
2, FIG. 13) First, it is determined whether or not the atrium is rectangular. If the atrium is rectangular, as shown in FIG.
Absolute beams are provided at both ends of the short-side direction when enclosing the maximum outer wall line of the building. And an absolute beam is provided in a direction perpendicular to this. If the atrium is other than rectangular, as shown in FIG. 13, absolute beams are provided at both ends of the atrium in the short side direction, enclosing the maximum outer wall line of the building. And an absolute beam is provided in a direction perpendicular to this. Then, a large pillar is provided at the corner of the protruding corner portion within the atrium area. At this time, if the pillar cannot be generated, NG display is performed (it is assumed that the pillar is provided on the wall, and if the precondition is not satisfied, NG display is performed). When NG display is performed, an inquiry is made as to whether or not the column is "OK" or "NO" on the input screen.
When the operator selects “OK”, the beam is automatically hung between the large pillar and the absolute beam (the operator's selection has priority over the above premise). Operator is "NO"
When is selected, the display returns to the input screen corresponding to the basic data and prompts re-input of the data.

(S32) An overhang absolute beam is arranged. (Fig. 14) An inquiry is made as to whether or not to install a pillar below the overhang portion on the input screen. When the operator selects the installation, a large pillar is arranged as shown in FIG. The position of the pillar is determined by the operator. In addition, in a case in which a pillar is not installed below the overhang, as shown in FIG.
The overhang portion has a predetermined length n1P (P: pitch,
For example, in the case of 0.9 m or less, an absolute beam is arranged in the overhang portion. The rule of this arrangement is the same as that of the absolute beam of the balcony part described later. If the overhang portion exceeds n1P, NG is displayed on the input screen, and the display returns to the corresponding input screen of the basic data to prompt re-input of data (in this case, the layout is changed). .).

(S33) An absolute beam is placed on the balcony. (FIGS. 15 to 18) (S33a) First, it is determined whether there is a balcony, and if there is, what kind of arrangement it is. It can be grasped because it is input in.). For example, in the example of FIG. 15, (a) is an example of four directions, (b) is an example of three directions, and (c) is an example of two directions. (S33b) Next, the arrangement of the balcony is determined. (S33c) If the arrangement of the balconies is at a right angle (this is grasped from the coordinate relationship between the outer wall of the building and the line segment specifying the balcony), the following processing is performed. As shown in FIG. 16 (a), when there is only one balcony on one side, the beam at the end of the largest dimension a2 when viewed from the distance from the balcony end to the outer wall is a through beam.
When there are two or more large dimensions (for example, FIG.
In the case (a) where c2 of the side C is equal to d1 of the side D), the light passes in the short side direction of the building. A square building is in the X direction (Y street)
Through. By determining the direction of the through beam in this way,
Furthermore, the through beams to be arranged also have the same direction in principle. This applies to other through beams described later. Further, as shown in FIG. 16 (b), when the outgoing corner balconies are arranged point-symmetrically, the distance from the balcony end to the outer wall is assumed to be as shown. Therefore, also in the illustrated example, the through beam is passed in the short side direction of the building.

Also, as shown in FIG.
If there are two or more balconies on one side, pass through the larger number of balconies on one side. In the illustrated example, the beam is passed in the short side direction of the building.

In FIG. 16D, when the following conditions are satisfied, the beams can be reversed (that is, the through beams in the orthogonal direction can be arranged). By providing such beams, the provision of large pillars is actively avoided. Balconies that do not satisfy this condition are provided with large pillars at both ends as shown in FIG. Therefore, in the example of FIG. 16 (e), the balcony (D side) on the right side of the figure satisfies the conditions, so that orthogonal through beams (Qd1, Qd2) are provided, and the balcony (side B on the left side of the figure) ) Is not fulfilled, so a pillar is provided. a2 ≧ 2D, c2 ≧ 2D a1 ≧ 2B, c1 ≧ 2B b2 ≧ 2C, d2 ≧ 2C b1 ≧ 2A, d1 ≧ 2A

Further, when the above conditions are not satisfied, for example, FIG.
As shown in FIG. 6 (f), if b0> n2 · P,
As shown in the figure, besides both ends of the balcony, a large pillar is provided in the middle.

Next, a case of a building having an entering angle will be described. In the case where there is only one balcony on one side as in a building with no corner, as shown in FIG. 17 (a), the end of the largest dimension a1 in view of the distance from the end of the balcony to the outer wall Through beam. -Then, as shown in FIG. 17 (b), the same processing is repeated for blocks other than the first block surrounded by the absolute beams. If a1 ≧ 2B, an absolute beam is provided at the position shown in FIG.

Similarly, in a building without a corner, if there are two or more balconies on one side, as shown in FIG. . Then, the same processing is repeated for blocks other than the block that is surrounded by the absolute beams that were initially placed (the blocks marked with * in FIG. 17E).

(S33d) Next, a case where the arrangement of the balconies is not a right angle will be described. As shown in FIG. 18, the beam Pa2 at the end having the largest dimension a2 is a through beam.
Then, through beams Pa1, Pc1, Pc2 are provided in parallel with the beam Pa2.

(S4) Next, the automatic arrangement of the braces will be described. (FIGS. 19 to 22) (A) Here, the arrangement rule of the brace will be described. I. Repeat twice. 1st time Weakly place braces (assuming there are two types of braces) and then automatically place beams. Second time After the first processing is completed, the processing for arranging beams is performed, and then the processing is performed again. Prohibit bracing of places with no beams above or below, or beams of 1P or less, and place braces according to the strength.

IIa. In the case where there are absolute beams The floor of each floor is divided into blocks (A to E) surrounded by the above absolute beams as shown in FIG. Then, the following four combinations (X1, X2, Y
The number of braces is determined in (1, Y2), and the maximum combination is adopted. Looking at the illustrated block (for example, B block), a wall (blind wall) in which a brace may occur in the block is shown (data is input in advance for this wall). Looking at the above four combinations shifted by 5P pitches, the combination of X1 and Y1 has the brace arrangement of 3P and is the largest, so that combination is adopted. Although the wall located at the origin in Y ways in FIG. 19 has a length of 1.5P, its fraction is truncated and treated as 1P.

When a place where only the last span is shifted by 0.5P from the corner in the brace arrangement for each block is arranged, 0.5P is shifted to the last side.

IIb. When there is no absolute beam 1a. When the building is rectangular, the same determination as above is performed for the block surrounded by the outline. 1b. If the building has an inside corner, it is divided into an outside corner portion and a block other than the outside corner portion, and the same determination as in the case of a rectangle is performed.

(B) Next, the process of automatic arrangement of braces will be described. (FIGS. 20 to 22) First, the area S of each floor is calculated, and the specified value (N / S) × Sm is calculated.
Calculate the minimum number of braces by floor and direction according to ² . Then, it is determined whether or not the condition that the number of blind walls ≧ the minimum number of braces is satisfied. When the condition is satisfied, the following processing is performed based on the following rule. (S41) Arrangement of brace 1st time: All weak braces are arranged on blind walls (bearing walls). However, it is assumed that the vertical brace cannot be placed crossing the place where the absolute beam enters. (The target wall is shown in Fig. 1.
This is the wall determined in 9. This is the same in a second embodiment described later. Second time: From the first brace arrangement, the braces are rearranged by judging the strength by looking at the beam arrangement and the joining conditions.
In the second time, after the first automatic brace arrangement processing, the process proceeds to the beam arrangement processing. After this beam arrangement processing, the automatic brace arrangement processing is performed again. It means the process at that time. In the second processing, as a prohibited matter of the arrangement of the brace, a deviation of 0.5 P or less is not allowed on the first and second floors except for the outer wall (N.
G), and intersection is not possible after automatic beam placement (N.
G) shall be determined.

(S42) The center of gravity (gx, gy) and the center of gravity (p
x, py).

(S43) Eccentricity (shift between center of gravity and rigid center)
(Ex, ey) is calculated. In addition, assuming that the floor area of each floor is calculated from the smaller one, the minimum number of braces in the X direction and the Y direction is compared, and the calculation is performed from the smaller direction. Here, the X direction (Y ways) will be considered for the time being. (S44) The eccentricity is calculated in consideration of the torsion correction coefficient α. (S45) The minimum number of braces is recalculated in consideration of the brace rigidity. (S46) It is determined whether or not the following condition is satisfied. If the condition is not satisfied, a message to that effect is displayed and the display returns to the input screen corresponding to the basic data to prompt the user to input data again.
When the condition is satisfied, the process proceeds to the next process. Number of blind walls ≥ minimum number of braces

(S47) Next, when gx ≦ px (when the rigidity is on the right side of the center of gravity on the x-axis), thinning is performed in the following manner. [Thinning method]: X and Y directions are alternately thinned according to the following rules. -Take the brace to the right of gx.・ Determine the position of the brace to be taken according to the magnitude of the eccentricity. If Re = β1 (the prescribed value of the eccentricity) or more, the outermost frame is braceed. If Re = β1, the innermost frame is braced.・ Braces taken from within the same construction (frame) are from the large axis (outside brace) on the left side of the center of gravity to the small axis (inner side (brace near the center of gravity) on the right side of the center of gravity.
Take from. [Priority of Thinning Braces] In the first routine, the priority is set in the order of the inner wall, the middle wall, and the outer wall. The first routine is N. In the case of G, and in the next routine (the process when returning from S49), the priority order of the inner wall, the middle wall, and the outer wall is removed (no priority order).

(S48) When gx> px (when the rigidity is on the left side of the center of gravity on the x-axis), the brace on the left side of gx is taken. Others are the same as the above [thinning-out method] and [priority of thinning-out brace]. (S49) One brace is thinned out, and it is determined whether the following condition is satisfied. When the condition is not satisfied, the process returns to the calculation of the center of gravity and the like (S42). When the condition is satisfied, the process proceeds to the next process. By performing such processing, the processing is repeated until immediately before the condition is not satisfied. Number of braces = Number of braces -1 Number of braces <Minimum number of braces

(S49a) The brace taken above is returned to the original one. (S49b) Eccentricity ratio Re ≦ β2 If the condition is satisfied in the first routine, the flow shifts to distance measurement outside the brace plane (S49d) to be described later. (S49c) If the above conditions are not satisfied even if all the braces are resurrected in the next routine (NG), the processing is terminated and a message to that effect is displayed. Prompt for input. When the condition is satisfied, the process proceeds to the next process. (S49d) The brace out-of-plane distance is measured. The brace out-of-plane distance is a distance as shown in FIG. (S49e) Then, it is determined whether or not the brace out-of-plane distance satisfies the following condition. The conditions are different between the first floor and the second floor, because the weights are different. 2F 12m> Brace out-of-plane distance 1F 10m> Brace out-of-plane distance (S49f) When the above conditions are not satisfied, ・ Resurrection of the brace (Resurrection of the brace in the opposite direction to that when thinning out the brace). -Set a flag if the wall is absolute (see definition below). In this way, the absolute wall is not thinned out, unlike the normal wall.・ Resurrection from the large axis on the left side of the center of gravity and the axis on the right side of the center of gravity on the opposite side to the rigid center near the center of gravity. -If the out-of-plane distance does not satisfy the above conditions (NG) even when the brace on the side opposite to the center of gravity is restored, restore the brace on the rigid side near the center of gravity.

(S49g) If the result satisfies the above condition, the process moves to the next step. If the above condition is not satisfied, the flow returns to the above processing (S49a).

(S49h) It is determined whether or not the following condition is satisfied. Eccentricity Re ≦ β2 When the condition is not satisfied in the first routine (the first routine in the first and second times), the above processing (S49)
Return to a). When the condition is not satisfied in the next routine (the next routine in the first and second times), the process returns to the above-mentioned processing (S42) with the absolute wall kept. (S49i) Next, it is determined whether the calculation in both directions has been performed. If the calculation in both directions has not been completed, the process returns to the above-described processing (S42). If the calculations in both directions (X direction and Y direction) have been completed, the process proceeds to the beam arrangement process (S5) when this calculation is the first time, and the column arrangement at the time of the vertical brace is performed in the second time. Move to processing (S6).

(S5) Arrangement of Beams (A) Arrangement Rules of Beams At a place where beams intersect, a beam having a higher priority of automatic generation is a through beam, and a beam having a lower priority is pin-joined to a higher beam.

(B) Automatic Arrangement of Beams (FIGS. 23 to 26) (B1) If there is no absolute beam and the building is rectangular, the following processing is performed (FIG. 23). (S51) A girder is generated at the position where the brace is arranged. (S52) Pass the girder through the outer wall line in the short side direction. (S53) It is determined whether or not a girder is arranged at a position where a brace in the short side direction is present. (S54) If it is determined that the beam does not enter, the beam is arranged. (S55) Then, when the following condition is not satisfied, the beams are arranged (S54) until the condition is satisfied. When this process is over, the process moves to the process of FIG. 26 (S59g) described later. Beam interval ≤ n2 · P

(B2) When there is no absolute beam and there is a corner in the building, the following processing is performed (FIG. 24). FIG.
In the case of A> B, the maximum outline of the building is enveloped, and the girders are passed over the extension of the outline in the short side direction of the formed rectangle. In the case of a square, the light passes in the X direction.

(B3) If there is an absolute beam, the following processing is performed (FIGS. 25 and 26). (S56) The blocks are divided according to how the beams are hung. FIG.
In the example of (e), it is divided into a left side and a right side. (S57) The brace and the mask are hung (brace beams are hung). (S58) Left block (right block, etc.). It is determined whether or not a girder is placed at the place where the brace is included (here, in the Y direction). If it is, the process moves to the process (S59a) described later. (S59) When it is determined that the beam does not enter (NO), the beam is arranged. (S59a) And the span a of the absolute beam (balcony etc.)
It is determined whether or not o satisfies ao ≦ n2 · P.

(S59b) If the condition is satisfied, it is determined whether the beam added by the brace is within the width of the absolute beam (balcony or the like). (S59C) When it is determined that there is a balcony (YES), if the beam has a balcony (only when the balcony width exceeds n2 · P), the beam is set as a through beam (girder) penetrating the balcony, and the above processing (S59a) is performed. Return to). (S59d) In the above processing (S59a), there is no (N
When it is determined as O), the following algorithm is executed.

Algorithm Absolute beam (balcony etc.) span ao / n2 · P = ○. ○
→ Rounding up = number of divisions n2 = 5. 7P / 5P = 1.4 Number of divisions 2 7/2 = 3.5 Division into 3.5P and 3.5P Example 2. 10.5P / 5P = 2.1 Number of divisions 3 10.5P / 3P = 3.5 Divided into 3.5, 3.5, and 3.5 However, in the above, the partition is seen by looking at 0.5 left and right. If there is, place it there. In any case, through beams are provided according to the number of divisions. That is, a span beam exceeding n2 · P is provided with a through beam as described above.

(S59e) A through beam is provided on the outer surface parallel to the absolute beam and at a place where the through beam is not replaced (a place where FIG. 16 (d) does not hold). A giant girder will also be installed at the tip of the balcony parallel to the girder. In the case of the right block, a through beam is provided on the outer wall parallel to the absolute beam. (S59f) If the location of * in the figure exceeds n2 · P, a large beam is provided in parallel with the absolute beam. In this case, the above algorithm is followed. (S59g) The center beam is placed at the place where the brace is inserted (here, in the X direction). At this time, the center beam is provided so that the center beam interval is 2P pitch or less. In the above,
The placement rule of the center beam is to consider the part surrounded by the absolute beam, and it is acceptable that the center beam on the left side and the right side are displaced or do not match the partition wall.

(S59h) A center beam is placed on the outer line (here, in the X direction). (S59i) The balcony part is provided with a middle beam orthogonal to the girders. (S59j) At the place where the brace is arranged, 1
It is determined whether or not the number of pin joints is two or more for beams of P or less. (S59k) In the above, the condition is satisfied (Y
If it is determined to be (ES), it has information that the brace cannot be generated. Here, it is assumed that all the beams are joined by pins. (S59l) If it is determined that the condition is not satisfied (NO), the following processing is performed. That is, it is assumed that brace generation is basically possible for a beam exceeding 1P, and the following information is given. One side pin Type 1 (weak brace) Both sides steel Type 2 (strong brace) Both sides pin Not possible

When the above processing is completed, the processing shifts to the second automatic brace arrangement processing (S4), and the processing is executed again. When the process is completed, the process moves to the next process (S6).

(S6) Column Arrangement for Vertical Brace Absolute columns are arranged on both sides of the brace.

(S7) Column Arrangement (FIGS. 27 to 30) (A) Column Arrangement Rule (A1) Rule If there are no pillars in the absolute beam and the girder, place the pillars at the corners of the outline if possible, and then at the intersections on the outline.

(A2) Rule 2 (FIG. 27) (S71) It is determined whether or not the column interval between the absolute beam and the large beam <n2 · P. Exit this pass when the conditions are met. (S72) If the condition is not satisfied (NO), the pillars are arranged in the portion with the blind wall from the youngest one near the center. (S73) Then, if there is no blind wall at a place where a pillar is required, that fact is displayed. In this case, the optimum position is displayed and the range that can be input by the operator is specified.

(A3) Rule 3 (FIG. 28) (S74) It is determined whether a column can be arranged at the end of the absolute beam. If it is determined that it can be done, exit this path.
Here, it is determined that there is no window, doorway, or the like. (S75) If it is determined that it is not possible (NO), the pillar is arranged, for example, within 3P across the absolute beam end.

(B) Manual Arrangement of Columns (FIGS. 29 and 30) Here, when a column cannot be arranged at the intersection of an absolute beam and a girder, and a column satisfying the conditions cannot be arranged on the absolute beam and the girder. For example, the following processing is performed.

Example 1 (FIG. 29) (S76) A column is placed on the absolute beam on the intersection side as much as possible within 3P from the column within 2.5P (0.5P pitch) from the intersection of the absolute beam and the girder. (S77) Also, a column is placed on the large beam on the intersection side as much as possible within 3P from the extreme end column of the absolute beam.

Example 2 (FIG. 30) (S78) At 0.5P pitch from the intersection of the absolute beam and the girder.
Within 5P, a column is placed on the absolute beam on the intersection side if possible. (S79) Also, the pillars are arranged on the cross beams as far as possible within 3P from the extreme end pillars of the absolute beams.

(S8) Stiffener Arrangement (FIG. 31) The procedure for automatically generating a stiffener is as follows. The stiffener is arranged in the short side direction of the block surrounded by the beam so as to be 2P or less. The priorities (rules) that are arranged from the younger grid and are automatically generated are as follows. On the extension of the younger side outer line On the extension of the younger side beam On the extension of the outermost side line On the extension of the last side beam On the extension of the younger side stiffener

FIGS. 31A and 31B are explanatory diagrams showing an example in which a stiffener is inserted based on the above rules. FIG. 7A is a diagram showing a state before the stiffener is inserted, and FIG. 7B is a diagram showing a state where the stiffener is inserted in FIG.

(S9) Floor Brace Arrangement The floor brace is arranged so as to cover the grit surrounded by the stiffener and the beam. Therefore, blow-by and the like are eliminated. For example, the following ten types of floor blues are prepared, and are appropriately selected according to the size of the grid. 2P × 2P, 1.5P × 1.5P, 1P × 1P, 0.5
P × 0.5P, 2P × 1.5P, 1.5P × 1P, 1
P × 1.5P, 2P × 1P, 1.5P × 0.5P, 2P
× 0.5P

(S10) Base Arrangement Base Generation Procedure: The base is generated so as to be closed by the outer wall line except for a part without a base (such as an entrance). If there is a brace panel inside the building, the foundation will be generated only under the panel. Foundation generation procedure: A cloth foundation is placed under the outer wall line. Out corner,
If there is a corner inside, extend the short side direction of the building and place the foundation beam. If there is a brace panel inside the building, a cloth foundation is generated immediately below the panel so as to close including the foundation beam and the cloth foundation below the outer wall line. Then, anchor bolts are arranged on both sides of the pillar.

By the above processing, all necessary steel materials are all generated, and each steel material has position information, joining conditions and the like as information. In addition, by giving the amount of money for each steel material and hardware as information, it is also possible to calculate the total amount of money when the steel material and the like are determined.

(S11) Positioning of Holes for Equipment and Positioning of Bolt Holes For example, it is necessary to make a special hole in a beam in a bathroom or the like. For this reason, such beams are specified by the operator. A flag is set on the beam corresponding to the specification of the operator. When the operator specifies the position of the hole, the beam has the position of the hole as information. Other beams will have the position information of the holes at predetermined positions.

(S12) Judgment of special beam: A beam in contact with the outer wall surface when the blow-through portion in contact with the outer wall surface exceeds 3P is:
Change the cross-sectional shape. For example, the size of the beam is increased by one rank. This process is performed automatically.

(S13) Creation of Member No. and Additional Data Structure The data created in the above processes (S1) to (S10) are added to the above processes (S11) and (S10).
The final data is generated by disabling the data of the process 12).

FIG. 32 is a diagram showing an example of a data structure of a steel material database. FIG. 1 shows an example of a beam and a column.

FIGS. 33 (a) and 33 (b) are illustrations showing examples of hardware attached to pillars and the like. The hardware having the reference numerals shown in FIG. 3A is used as shown in FIG. The information of the hardware is uniquely specified by the arrangement of the above-mentioned members.

FIG. 34 is an explanatory diagram showing an example of data generated by the above processing. This data is used as the structural calculation data and the work plan data, respectively, as described above. Performing a structural calculation using the structural calculation data or automatically creating a work plan using the data for the work plan has been conventionally performed, and the details thereof are omitted here.

FIGS. 35A and 35B show L in FIG.
It is explanatory drawing which showed the concept of (edge win), M (end core), and S (edge negative). L (end portion win): The end portion of the member protrudes from the core. M (end crossing core): The end of the member stops at the crossing core. S (end negative): The end of the member does not reach the core. In addition, the end core (M) is generated because a joint portion is required in the beam passing direction when the size of the absolute beam and the large beam member becomes long. In addition, the edge win (L) occurs at a portion that is in contact with the outline of the building and the outer wall line.

Embodiment 2 FIGS. 36 and 37 are flowcharts showing processing steps for automatically generating members in the design support system according to the second embodiment of the present invention. Hereinafter, differences from the flowcharts of FIGS. 10 and 11 will be mainly described. I do. Note that the configuration of FIG. 1 is applied as it is to the system according to the second embodiment of the present invention. (S1) Calculate the floor area of each floor (this process is the same as in the above embodiment). (S2) The required wall amount per area is calculated for each floor (this process is the same as in the first embodiment).

(S101) It is determined whether there is a stairwell in the width of the balcony. As shown in FIGS. 38A and 38B, there are a case where the number of balconies is one and a case where there are a plurality of balconies. In the case where there are a plurality of balconies, judgment is made only on the case where the number of balconies attached to one side is large. . If the number of balconies on the side is equal, only the balcony with the largest width is judged. And in any case,
The atrium is judged as a floor. FIG. 38
In the case of (C), since there is no stairwell in the width of the balcony, it is determined that there is no stairwell.

(S3) Arrange absolute beams (this process is the same as in the first embodiment).

(S102) Next, automatic arrangement of braces will be described. (A) Here, the arrangement rule of the brace will be described. I. The number of floors is repeated +1 (the number of repetitions is different from that of the first embodiment). First time (1st floor): After placing weak braces on the first floor (assuming that there are two types of braces), reduce the number of braces, and if the minimum number is +1, the beams on the second floor Is automatically arranged. 2nd (2nd floor): Braces cannot be placed on the 2nd floor where there is no absolute beam or girder below (2nd floor). Number of floors + 1st: After clearing all the braces generated in the 1st and 2nd times, brace is provided only in the part where absolute beams and girders are present. Or, prohibit bracing of beams of 1 P or less, and place braces according to strength. (See Fig. 39)

II. The processing when there is an absolute beam and when there is no absolute beam are the same as those in the first embodiment, and thus the description thereof is omitted here.

(B) The process of automatic arrangement of races will be described. (FIGS. 40 to 42) (S102a) The area S of each floor is calculated. (S102b) by prescribed value (N / S) × Sm ² Kaibetsu, calculates the minimum number of braces by direction. (S102c) It is determined whether or not the condition that the number of blind walls ≧ the minimum number of braces is satisfied. (S102d) When the above condition is satisfied, the following processing is performed based on the following rule. 1st and 2nd: All weak braces are placed on the blind wall (bearing wall). At this time, it is assumed that the vertical brace cannot be arranged so as to cross the place where the absolute beam enters. However, it is not determined whether there is an absolute beam on the 2F in the arrangement of the brace on the 2F. The number of floors + twelfth: The braces are rearranged by judging the strength by looking at the beam arrangement and joining conditions. It is also determined that plane crossing is impossible.

(S42) Calculation of the center of gravity and the like to (S46) Recalculation of the minimum number of braces is performed in the same manner as in the first embodiment.

(S102e) Next, when gx ≦ px (when the rigidity is on the right side of the center of gravity on the x-axis), the processing is basically the same as the processing (S47) in the first embodiment. However, in the first and second times, the priorities of the thinning braces are set in the order of the inner wall, the middle wall, and the outer wall. The first and second times are N.I. In the case of G, and in the first floor, the priority order of the inner wall, the middle wall, and the outer wall is removed (no priority order).

(S102f) When gx> px (when the rigidity is on the left side of the center of gravity on the x-axis), the brace to the left of gx is taken. Others are the same as the above processing (S102e). (S49) to (S49e) Processing similar to that of the first embodiment is performed. However, in the process (49c), "the second time" is read as "the floor + 1 time". (S102g) If the brace out-of-plane distance does not satisfy the condition:-At all times, the intersection of the brace is judged and the brace is revived. (Resurrection of the brace in the opposite direction from when the brace was thinned out). -Set a flag if the wall is absolute (see definition below). In this way, the absolute wall is not thinned out, unlike the normal wall.・ Recover from the large axis on the left side of the center of gravity, and from the small axis on the right side of the center of gravity on the right side of the center of gravity. -If the out-of-plane distance does not satisfy the condition even if the brace is resurrected (NG), the brace is canceled and the brace on the rigid side is resurrected.

(S49g) As a result, when the condition is satisfied, the flow shifts to the next processing (S49i).

(S49i) It is determined whether the calculation in both directions has been performed. If the calculation in both directions has not been completed, the process returns to the above-mentioned processing (S42). If the calculations in both directions (X direction and Y direction) have been completed, the process proceeds to the beam arrangement processing (S103) when the current calculation is the first or second calculation. In the case of the (number of floors + 1) time, the process proceeds to the next process (S102h). (S102h) In the case of the number of floors + 1 time, it is next determined whether or not there is an intersecting brace. (S102i) When there are intersecting braces, the orthogonal braces are deleted while leaving the braces arranged on the winning beam. Then, it is determined whether or not the braces can be arranged as deleted (X and Y). (S102j) If the braces can be arranged as deleted (X and Y ways), the braces are arranged as appropriate. (S102k) If the brace cannot be arranged as deleted (X way, Y way), the same processing is repeated returning to the original, leaving the brace arranged on the losing beam. When the above processing (S102j, S102k) is completed, the processing shifts to pillar arrangement processing (S6) during vertical brace.

(S103) Arrangement of Beams (A) Arrangement Rules of Beams At the intersections of beams, beams with a higher priority of automatic generation become through beams, and those with a lower priority are pin-joined to higher ones. Of the first embodiment).

(B) Automatic Arrangement of Beams (B1) If there are no absolute beams and the building is rectangular, the same processing as in the first embodiment (FIG. 23) is performed. However, the beam arrangement in the process (S54) is performed based on an algorithm described later. When the processing is completed, the flow shifts to the processing in FIG. 46 (S103c) described later. Beam interval ≤ n2 · P

(B2) The same processing as in the first embodiment (FIG. 24) is performed for a case where there is no absolute beam and there is a corner in the building.

(B3) When there are absolute beams and there is a stairwell in the width of the balcony, the following processing is performed (FIGS. 43 and 44). When L> n2 · P, L1 and L2 are used. Place the beam on If L ≦ n2 · P and L1> n2 · P, a beam is placed at L1. If L ≦ n2 · P and L2> n2 · P, a beam is placed at L2. Or, L ≦ n2 · P, L10> n2 · P, and L20
> N2 · P. In addition, when L10> n2 · P, it is determined whether or not columns can be generated at both ends of the outer wall line. If possible, a beam is arranged at L1. If impossible, a beam is arranged at L2. Also in this case, the pillar check is performed according to the pillar arrangement rule 3 with respect to the arrangement of L2. Further, when L20> n2 · P, it is determined whether or not columns can be generated at both ends of the outer wall line. If possible, a beam is arranged at L2, and if not, an beam is arranged at L1. Also in this case, the pillar check is performed according to the pillar arrangement rule 3 regarding the arrangement of L1.

Balcony span> n2 · P (L
10 ≦ n2 · P, L20 ≦ n2 · P) and L1>
In the case of L2, the beam is arranged at L1 if possible, and is arranged at L2 if impossible. Also in this case, the pillar check is performed according to the pillar arrangement rule 3 described below regarding the arrangement of L2. If L2 cannot be arranged, it is arranged at L1. In the case of balcony span> n2 · P (L10 ≦
n2 · P, L20 ≦ n2 · P) When L1 ≦ L2, the beam is placed on L2 if possible, and is placed on L1 if impossible. Also in this case, the pillar check is performed according to the pillar arrangement rule 3 regarding the arrangement of L1. If L1 cannot be arranged, it is arranged at L2.

(B3) If there is an absolute beam, the following processing is performed (FIGS. 45 to 47). (S56) to (S59b) are the same as those in the first embodiment (FIG. 25). (S103a) When it is determined that the beam added by the brace is within the width of the absolute beam (balcony or the like), it is determined that the beam exists on the balcony, and If there is an absolute beam at the overhang, a through beam (absolute beam) that penetrates it. (S103b) If the beam added by the brace is not within the width of the absolute beam (balcony or the like), a large beam is provided in the area surrounded by the absolute beam. At that time, a beam is provided for each block with the following priority. That is, as shown in FIG. 48, it is determined whether or not columns can be generated at both ends of the outline, and only possible grids are extracted. This will be described later as an algorithm.

(S59e) and (S59f) First Embodiment
It is the same as (FIG. 25). (S103c) The intersecting braces within the area surrounded by the girder are deleted. (S103d) The center beam is placed at the place where the brace is inserted (here, in the X direction). (S103e) It is determined whether or not the girder spacing is 2P or less. If it is 2P or less, an algorithm (see stiffener placement rules) is calculated. (S103f) If the interval between the girders is not 2P or less, the middle beams are provided so that the interval between the center beams is 2P or less. (S103g) The center beam is arranged on the outer line (here, in the X direction). (S59i) At the balcony, a middle beam is provided orthogonal to the large beam. (S103h) If the current processing is the first or second brace routine, the processing shifts to the automatic arrangement of the brace. If the current processing is the brace routine, the processing proceeds to the next processing (S103i). (S103i) The upper and lower beams of 1P or less are projected to determine whether the pin joint is at both ends of the brace (see FIG. 47).
Note that, in FIG. 47, a mark O indicates a joining pin. 1
Bracing can occur for beams over P. Both sides rigid Type 1 (strong brace) One side pin Type 2 (weak brace) Pins at both ends Pattern that cannot be generated After the above processing is completed, the procedure shifts to the automatic placement of the first floor brace.

(Algorithm) The above algorithm will be described. (FIG. 48, FIG. 49). Here, it is determined whether or not a partition is arranged such that the distance in which the columns can be generated in the calculation direction in the grid that can be generated is n2 · P or less. 1) It is determined whether a pillar can be generated at the ridgeline of the outer wall line, and only possible grids are extracted. 2) Selection of fixed grit: n2 · P within span marked with ○
Determine the span that can be interrupted by the pitch. (FIG. 48) 3) Outside fixed grid: It is determined whether or not the span is equal to or less than n2 · P. If the span is equal to or less than n2 · P, this algorithm is exited. If it is not less than n2 · P, selection is made in steps of 0.5P from n = n2 · P to 2P. Then, the grid that fits first is set as the fixed grid. (FIG. 49)

(S7) Pillar Arrangement (A) Pillar Arrangement Rule (A1) Rule 1 and Rule 2 are the same as in the first embodiment, and will not be described. (A2) Rule 3 (FIG. 50) (S74) It is determined whether a column can be arranged at the end of the absolute beam. If it is determined that it can be done, exit this path.
Here, it is determined that there is no window, doorway, or the like. (S75) If it is determined that it is not possible (NO), the pillar is arranged, for example, within 3P across the absolute beam end. (S75a) A pillar is provided within 3P across the end of the absolute beam. (S75b) Exchange the game of the beam of the outer wall line. (S75c) Whether there are pillars on both sides for the beam that has been swapped and won. It suffices if there are columns at n2 · P or less across the absolute beam. If it can be arranged, it is arranged (after that, it shifts to the processing of stiffener arrangement). If the exchange does not win, the process proceeds to the next step.

Note that, regarding the arrangement of the pillars, there is a restriction that the maximum interval is n2 · P. When a brace is arranged on the second floor in a certain frame and there is no pillar on the first floor, the pillar is arranged immediately below the pillar for the brace on the second floor. If that is not possible, repeat until it is possible to place it from just below the brace post to the outside.

(B) Manual Arrangement of Columns (FIGS. 29 and 30) This processing is the same as in the above-described embodiment, and a description thereof will be omitted.

(S104) Adding a middle beam below the column twice (FIG. 51) Where there is no beam below the column on the second floor, a beam is provided in the shortest direction.

The processes in (S8) to (S13) are the same as those in the above-described first embodiment, except for the base arrangement (S10), and a description thereof will be omitted.

(S10) Base Arrangement A foundation is provided on the outer wall line on the first floor. Install the foundation on the short side brace inside the building and extend it to the shortest distance. Place the foundation on the remaining indoor braces and extend to the shortest distance foundation. If there is a stud, an independent foundation will be established.

Here, the terms used in the present invention are defined as follows. (Definition of terms) Balcony: Bring out 1.0P or 1.5P with specified range <Input item> Absolute beam: Through beam provided first in the atrium <Automatic generation> Absolute beam: Absolute beam perpendicular to the atrium <Auto-generated> Absolute beam: Cantilever provided at overhang part <Auto-generated> Absolute beam: Cantilever required at both ends of balcony <Auto-generated> Absolute beam: Both overhang or balcony part When the absolute beam interval exceeds n2 · P, the absolute beam or a beam provided in parallel with the absolute beam so as to be n2 · P or less <Automatically generated> Large beam: Through beam <Automatically generated> Middle beam: Beam orthogonal to the through beam <Automatic generation>

Large Pillars: Pillars inevitably generated at the atrium, overhangs or balconies <Automatically generated> Studs: Pillars with no brace on both sides except for the outer line (inside the building) <Automatic Occurrence> Absolute column: A column to which a brace is attached. <Automatic generation> Middle column: A column other than the above. <Automatic generation> Frame: The surface on which the member is placed. , Axis <automatic generation> Outline: A line that can be drawn with a single stroke on the floor excluding the balcony or in the atrium <automatic generation> Fixed grid: Selects and fixes a grid that can generate partitions when large beams are generated. Grid outer wall: Wall facing the open air of the floor <Input item> (However, see Fig. 52) Inner wall: Wall inside the building of the floor <Automatic generation> Middle wall: The inner wall of the floor However, a wall that becomes the outer wall on another floor <Automatically generated> Absolute wall: The brace is revived when the out-of-plane distance becomes NG, and refers to the brace revived when the out-of-plane distance becomes OK. . <Automatic generation>

Overhang: The part where the upper floor is protruding from the lower floor. The protruding dimensions are 0.5P, 1.0P and 1.5P. <Automatically generated> Outer corner: Protruding part other than core part <Automatically generated> Rectangular block: A rectangle formed by extending the shortest-side outline formed by enclosing the maximum outline of the building (see Fig. 53)

Street name:-Starting from the lower left corner of the plan view (X10, Y10)-On the minus side of the balcony: 1P minus from X10 (Y10) street The street name is X00 (Y00) X10 ( In the case of 1.5P minus from the Y10) street The street name is H05 (V05).

FIGS. 54 to 60 are views showing the screens of the computer in the process of the first and second embodiments. FIG. 54 shows the layout of the rooms on the first and second floors and the state of the roof. Thick black lines on the first and second floors indicate walls (blind walls), and square black portions indicate blow-through portions. In FIG. 55, the above-mentioned absolute beam is generated in the part of the stairwell, the blocks are divided based on the absolute beam (the crosses in the figure indicate the area of one block), and the vertical brace (weak) is applied to each block. A state is shown in which a wall for arranging a brace is specified and a brace is arranged on the wall. In the figure, the thick black line is the wall where the braces are arranged. FIG. 56 shows the result of thinning out the vertical braces from the state of FIG. On the first floor, most of the vertical braces are located on the outer wall, although some remain on the inner wall. FIG. 57 shows a state where the girder and the middle girder are arranged thereafter. The thick black line in FIG. 57 is the wall where the vertical braces are arranged. In FIG. 58, the blocks are divided based on the beams arranged as described above (the crosses in the figure indicate the area of one block), and the braces are restored to the walls (walls on which the braces can be arranged) on the lines of the beams. It shows the state where it was turned on. FIG. 59 shows a state where the arrangement is determined by thinning out the vertical braces again from the above state (thick black line in the figure). FIG. 60 shows a final state in which the respective processes of column arrangement, stiffener arrangement, floor brace arrangement (marked by x in the figure), and base arrangement are further performed.

[0104]

As described above, according to the present invention, basic matter data of a steel structure is input, and structural member data of the steel structure is generated based on the basic matter data and a predetermined member arrangement rule. As a result, a practically excellent effect is obtained in that the structural design can be easily performed without any specialized knowledge, and the design can be easily changed.

[Brief description of the drawings]

FIG. 1 is a flowchart showing a processing procedure in a steel frame structure design support system according to a first embodiment of the present invention.

FIG. 2 is a diagram showing a screen when basic items are input in the system 1 of FIG. 1;

FIG. 3 is an explanatory diagram of an input screen when an outer wall line on the second floor is determined in the system 1 of FIG. 1;

FIG. 4 is an explanatory diagram of an input screen when the roof of the second floor is determined in the system 1 of FIG. 1;

FIG. 5 is an explanatory diagram of an input screen when a balcony is determined in the system 1 of FIG. 1;

FIG. 6 is an explanatory diagram of an input screen when a wall on the second floor is determined in the system 1 of FIG. 1;

FIG. 7 is an explanatory diagram of an input screen when the floor of the second floor is determined in the system 1 of FIG. 1;

FIG. 8 is an explanatory diagram (part 1) of a screen showing a state of thinning of a load-bearing wall in the automatic generation of members of the system 1 of FIG. 1;

FIG. 9 is an explanatory view (part 2) of a screen showing a state of thinning of a load-bearing wall in the automatic generation of members of the system 1 of FIG. 1;

FIG. 10 is a flowchart showing a process for automatically generating members in the system 1 of FIG. 1 (part 1);
It is.

FIG. 11 is a flowchart (part 2) showing a process for automatically generating members in the system 1 of FIG. 1;
It is.

FIG. 12 is an explanatory diagram showing a method of arranging absolute beams when the atrium is rectangular.

FIG. 13 is an explanatory diagram showing a method of arranging absolute beams and the like when the atrium is other than a rectangle.

FIG. 14 is an explanatory view showing a method of arranging absolute beams and the like in an overhang.

FIG. 15 is an explanatory diagram showing an example of arrangement of balconies.

FIG. 16 is an explanatory diagram of a method of arranging absolute beams when balconies are arranged at right angles.

FIG. 17 is an explanatory diagram of a method of arranging absolute beams in a building having an entering angle.

FIG. 18 is an explanatory diagram of a method of arranging absolute beams when the arrangement of balconies is not a right angle.

FIG. 19 is an explanatory diagram showing a brace arrangement rule when there is an absolute beam.

FIG. 20 is a flowchart (part 1) illustrating a process of automatic placement of braces.

FIG. 21 is a flowchart (part 2) illustrating a process of automatic placement of braces.

FIG. 22 is a flowchart (part 3) illustrating a processing procedure of automatic placement of braces.

FIG. 23 is a flowchart showing a processing procedure when there is no absolute beam and the building is rectangular.

FIG. 24 is a flowchart showing a processing procedure when there is no absolute beam and there is a corner in the building.

FIG. 25 is a flowchart (1) showing a processing procedure when there is an absolute beam;

FIG. 26 is a flowchart (part 2) illustrating a processing procedure when there is an absolute beam;

FIG. 27 is a flowchart showing a processing procedure of a pillar arrangement rule 2;

FIG. 28 is a flowchart showing a processing procedure of a pillar arrangement rule 3;

FIG. 29 is a flowchart showing the processing steps for Example 1 of the manual placement of columns.

FIG. 30 is a flowchart showing a process of Example 2 of the manual placement of columns.

FIG. 31 is an explanatory diagram of an example of inserting a stiffener.

FIG. 32 is a diagram showing an example of a data structure of a steel material database.

FIG. 33 is an explanatory diagram showing an example of hardware attached to a pillar or the like.

FIG. 34 is an explanatory diagram illustrating an example of data generated by the above processing.

FIG. 35 is an explanatory diagram showing the concept of L (end section win), M (end section core) and S (end section negative) in FIG. 34.

FIG. 36 is a flowchart (part 1) illustrating a process for automatically generating members in the second embodiment of the present invention.

FIG. 37 is a flowchart (part 2) illustrating a processing procedure for automatically generating members in the second embodiment of the present invention.

FIG. 38 is an explanatory diagram showing an example of a case where there is a stairwell in the width of a balcony;

FIG. 39 is an explanatory diagram of a brace arrangement rule.

FIG. 40 is a flowchart (part 1) illustrating a process of automatic brace arrangement;

FIG. 41 is a flowchart (part 2) illustrating a processing procedure of automatic placement of braces.

FIG. 42 is a flowchart (part 3) of the process of automatic brace arrangement;

FIG. 43 is an explanatory view (No. 1) of the processing when there are absolute beams and there is a stairwell in the width of the balcony.

FIG. 44 is an explanatory diagram (part 2) of the process when there are absolute beams and there is a stairwell in the width of the balcony.

FIG. 45 is a flowchart (part 1) illustrating a processing procedure when there is an absolute beam;

FIG. 46 is a flowchart (part 2) illustrating a processing procedure when there is an absolute beam;

FIG. 47 is a flowchart (part 3) illustrating a processing procedure when there is an absolute beam;

FIG. 48 is an explanatory diagram (part 1) of an algorithm.

FIG. 49 is an explanatory diagram (part 2) of the algorithm.

FIG. 50 is a flowchart showing a processing procedure of a pillar arrangement rule 3a.

FIG. 51 is an explanatory diagram of a case where a middle beam is added below a pillar on the second floor.

FIG. 52 is an explanatory diagram of an outer wall of the present invention.

FIG. 53 is an explanatory diagram of a rectangular block according to the present invention.

FIG. 54 is a view showing a computer screen (No. 1) in the process of the first and second embodiments.

FIG. 55 is a diagram showing a screen (No. 2) of the computer in the process of the first and second embodiments.

FIG. 56 is a diagram showing a screen (No. 3) of the computer in the process of the first and second embodiments.

FIG. 57 is a diagram showing a screen (No. 4) of the computer in the process of the first and second embodiments.

FIG. 58 is a diagram illustrating a screen (No. 5) of the computer in the process of the first and second embodiments.

FIG. 59 is a diagram showing a screen (No. 6) of the computer in the process of the first and second embodiments.

FIG. 60 is a diagram showing a screen (No. 7) of the computer in the process of the first and second embodiments.

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Toshiaki Miyao 1-1-2 Marunouchi, Chiyoda-ku, Tokyo Nihon Kokan Co., Ltd. (72) Inventor Hitoshi Ito 1-2-1-2 Marunouchi, Chiyoda-ku, Tokyo Sun (72) Inventor: Takehiko Sugiyama, 1-2-1, Marunouchi, Chiyoda-ku, Tokyo, Japan Nihon Kokan Co., Ltd. (72) Inventor: Hideyuki Fukihara 1-1-2, Marunouchi, Chiyoda-ku, Tokyo, Japan Inside the corporation

Claims (5)

[Claims] 1. A method comprising: inputting basic item data of a steel structure; and generating structural member data of the steel structure based on the basic item data and a predetermined member arrangement rule set in advance. A design support system for a steel structure. 2. In the step of generating the structural member data, when the basic matter data is out of the predetermined member arrangement rule, correction data is input by interactive input on an input screen, and the correction data is already input. 2. The design support system for a steel structure according to claim 1, wherein the basic data is modified. 3. The design support system for a steel structure according to claim 1, wherein the structural analysis is performed using the structural member data of the steel structure to generate a structural calculation document required for the confirmation application. 4. After confirming the safety of the structural member by performing structural analysis using the structural member data of the steel structure, dimensions and hole positions of each structural member are determined using the structural member data of the steel structure. 3. A design support system for a steel structure according to claim 1 or 2, wherein data of metal fittings for each connection is generated, and various drawing data, various tabulation tables and data for factory processing of members are created. . 5. A recording medium in which a program for processing the system according to claim 1 on a computer is recorded.