JP2008297897A - Bearing wall layout method for use in structural calculation of building using computer - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To propose a bearing wall layout method for facilitating structural calculation of a building such as a house. <P>SOLUTION: Plane shape including external walls and partition walls of the building, and the number of required bearing walls in each direction in each story, are set beforehand. In a layout pattern preparing process, a plurality of layout patterns of the bearing walls for the external walls or partition walls are prepared based on the set plane shape and the set number of required bearing walls in each direction. In a rating process, all the layout patterns prepared in the pattern preparing process are rated based on the preset degree of column adjacency, degree of planar dispersion and degree of vertical dispersion in every direction to rate each layout pattern. In a layout determining process, the layout of the bearing walls are determined story by story based on the highest-rated layout pattern in each direction in the rating process. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to an arrangement method of load bearing walls used for structural calculation of a building using a computer capable of appropriately placing load bearing walls on the outer wall and / or partition wall of each floor in the target building, and the same. It relates to a computer program including

  When designing the structure of a building, we assume horizontal forces such as earthquakes and winds acting on the building, calculate the weight and center of gravity of the structural elements such as roofs, walls, and floors. An appropriate number of bearing walls are arranged on the wall. Although this calculation is complicated and a partial calculation can be executed using a computer, the layout of the bearing walls is appropriately assigned by the designer.

  Recently, it has been proposed to support structural design including assignment of bearing walls using a computer. For example, in the technique disclosed in Japanese Patent Laid-Open No. 9-302765, by inputting data relating to the specifications of the exterior wall line and roof of a house on the computer screen, the estimated number of bearing walls in the horizontal and vertical directions can be obtained. Calculate the position of the center of gravity, display this result on the screen, input the bearing wall along the outer wall line while referring to this display, and then determine whether the input bearing wall can provide the required strength. When the result is displayed on the screen and it is determined that the required strength cannot be given by the determination, the arrangement of the bearing walls is corrected and the strength determination is performed again. This technique is advantageous as a structural planning support method because strength can be determined by placing a bearing wall on the outer wall of the target house.

JP-A-9-302765

  However, in the above technique, since the input position (arrangement position) of the load bearing wall is limited to the outer wall of the house, the load bearing wall must be concentrated on the outer wall, and the position and size of the opening provided on the outer wall are inevitably arranged. There may be restrictions on the length. In addition, there may be a case where the strength of the structural plan cannot be obtained due to the lack of bearing walls and the layout of the entire house, and the target plan plan must be abandoned.

  The object of the present invention is to set a pattern in which bearing walls are arranged at arbitrary positions on the outer wall and partition wall based on a preset planar shape for each layer and the number of bearing walls in each direction. Providing an evaluation point and arranging a bearing wall based on the given evaluation point provides a placement method for a bearing wall that enables even a less skilled person to achieve proper placement of the bearing wall. There is.

In order to solve the above-described problem, the first configuration of the load-bearing wall placement method used for the structural calculation of the building using the computer according to the present invention is the first configuration of the load-bearing wall used for the structural calculation of the building using the computer. Each layer, which is an arrangement method, calculated in advance using a planar shape including an outer wall and a partition wall of each level of the building, a horizontal load acting on each level of the building, and an allowable load of a standard bearing wall The step of inputting the necessary number of bearing walls of the standard bearing walls in each direction in the computer and setting the positions, and the positions of the outer walls and the partition walls constituting the planar shape set in each of the layers are The computer recognizes that a wall can be placed, and places more standard load bearing walls than the required number of load bearing walls in each layer and each direction in the place where the load bearing walls can be placed, and the plane Outside make up shape And a placement pattern creation step of creating a plurality of placement patterns of the load bearing walls with respect to the partition walls by the computation of the computer, and a column adjacent to the preset load bearing walls for all the placement patterns created in the placement pattern creation step Using the score of each bearing wall calculated by the computer based on the evaluation items of degree, planar dispersion, and elevation dispersion, evaluation points are assigned to the placement patterns of the bearing walls in each layer and each direction. and a scoring step for scoring in operation of the computer Te, each layer and each by selecting an arrangement pattern based on the final score of the scoring each layer and each direction granted at the step and it is characterized in a determined Teisu Turkey arrangement direction of the bearing wall.

  In the load bearing wall placement method used for the structural calculation of a building using the computer, the position of the outer wall or partition wall is set for each level by setting the planar shape of the target building. And the said outer wall and / or partition wall are recognized as a site | part which can arrange | position a bearing wall. When the planar shape for each level of the target building is set, the method for setting the number of bearing walls required in each direction is not particularly limited. That is, when the target building is set, a skilled engineer can empirically set the number of bearing walls. It is also possible to calculate or assume the weight of the target building, calculate the horizontal force acting in each direction during an earthquake, and set the required number of bearing walls in each direction.

  In the layout pattern creation process, the required number of load-bearing walls are divided into the outer wall and the partition wall based on the planar shape of each layer preset for the target building as described above and the required number of load-bearing walls in each layer and each direction. Thus, a large number of arrangement patterns arbitrarily arranged can be created. At this time, the arrangement of the load bearing wall with respect to the outer wall and the partition wall is mechanically performed at a position where the load bearing wall excluding an opening such as a window or an entrance / exit can be arranged, and the created individual arrangement pattern is merely possible. It is only an indication of sex. Accordingly, in the arrangement pattern creation step, a large number of arrangement patterns are created.

  In the scoring process, for the many arrangement patterns created in the arrangement pattern creation process, the column adjacency, the same wall, paying attention to whether the arranged load bearing walls are in contact with the necessary columns structurally, respectively When there are multiple bearing walls in the plane, the degree of planar dispersion focusing on whether or not they are separated from adjacent bearing walls, whether or not they are separated from the bearing walls located on the same floor and on the lower floor Scores are assigned based on the elevational dispersion, focusing on the crab, and the points given to each bearing wall are summed to calculate the points for each arrangement pattern.

Then, based on the given and the final score with in the above-mentioned scoring process to extract one arrangement pattern based on the extracted arrangement pattern, disposing a predetermined planar shape to the bearing wall.

  As described above, by setting the planar shape of each level in the target building and the number of bearing walls required for each level and in each direction in advance, the outer wall that defines the radial shape of the building and Alternatively, the load bearing wall can be reasonably arranged with respect to the partition wall.

  In particular, assuming all placement patterns of the load-bearing walls for each level of the target building and assigning points from the same point of view to all assumed placement patterns, skillful design Even if it is not a designer or a designer, the same arrangement pattern is obtained, and the structural performance does not vary due to the difference between the designers.

  In addition, the second configuration of the load-bearing wall arrangement method used for the structural calculation of the building using the computer according to the present invention is the standard configuration in each direction in each layer in the first configuration. The necessary number of bearing walls of the wall is calculated by inputting each condition for calculating the load of the building with the computer, the horizontal load acting on each level of the building calculated by the calculation processing of the computer, and the standard stored in the computer It is calculated and set by calculation of the computer using an allowable load of a typical bearing wall.

  The third configuration of the load-bearing wall arrangement method used for the structural calculation of the building using the computer according to the present invention is the first and second configurations, wherein the load-bearing wall is provided in the arrangement pattern creating step. The site | part which can be arrange | positioned is the outer wall or partition wall on the bearing wall line for arrange | positioning a bearing wall, It is characterized by the above-mentioned.

  In addition, a computer program used for building structure calculation according to the present invention includes a bearing wall arrangement method used for building structure calculation using the computers having the first to third configurations. To do.

In the layout method of the load-bearing wall used for the structural calculation of the building using the computer according to the present invention, a plane shape including the outer wall and the partition wall of the building is set in advance, and the necessary load-bearing wall for each direction in each level In the arrangement pattern creation step, a plurality of arrangement patterns of the load-bearing walls with respect to the outer wall and / or the partition wall can be created based on the set planar shape and the required number of load-bearing walls in each direction. Also, in the scoring process, for all the layout patterns created in the layout pattern creation process, the score is based on the preset column adjacency, planar dispersion, and elevational dispersion for each direction. By attaching, points can be given for each arrangement pattern, and the total points can be compared. And, the one of the arrangement pattern of each direction is determined based on the given and the final score with In scoring step, to determine the placement of the bearing wall in each layer based on the arrangement pattern A plurality of bearing walls can be rationally arranged.

  Especially for buildings that cannot be designed unless the layout position of the bearing wall is not limited to the outer wall, including the partition wall, for example, large buildings such as apartments, lighting, etc. Even in a building where a sufficient amount of bearing walls cannot be arranged, the bearing walls can be easily and rationally arranged.

  Hereinafter, a preferred embodiment of a method for arranging a bearing wall used for the structural calculation of a building using the computer will be described with reference to the drawings. FIG. 1 is a flowchart for explaining the procedure of a load bearing wall arranging method used for the structural calculation of a building using a computer according to the present embodiment. FIG. 2 is a view showing a planar shape of the first floor and showing an outer wall line, a partition wall line, and a grid. FIG. 3 is a view showing a planar shape of the second floor and showing an outer wall line, a partition wall line, and a grid. FIG. 4 is a roof plan. FIG. 5 is a diagram showing an example of an arrangement pattern in which bearing walls necessary for the first floor are arranged in the Y direction (north-south direction, vertical direction in the figure). FIG. 6 is a diagram showing a state in which a bearing wall is set in advance on the first floor and a bearing wall is assigned to each bearing wall. FIG. 7 is a diagram for explaining the column adjacency. FIG. 8 is a diagram for explaining the planar dispersion. FIG. 9 is a diagram for explaining the three-dimensional dispersion degree. FIG. 10 is a diagram showing the planar shapes of the first floor and the second floor of the target building.

  Prior to the description of the method for arranging the bearing walls of this embodiment, an example of a building will be described with reference to FIG. In the figure, the target building is configured as a two-story house consisting of a first floor A and a second floor B. On each floor A and B, an outer wall 1 constituting the outside of the building and a partition wall 2 provided inside the building are constituted, and the floors inside the building are constituted by these walls 1 and 2. Further, the entrance porch 3 constituting the floor surface is configured on the first floor A, and the veranda 4 configuring the floor surface is similarly configured on the second floor B. Such a planar shape is set in accordance with conditions such as a family structure living in the target building.

  When a load bearing wall is arranged on an outer wall or a partition wall constituting a target building, it is affected by a horizontal force acting on the building. For this reason, after the planar shape of the building is set, the weight of each level constituting the building is calculated, and the effect is applied to each level and each direction during an earthquake according to the calculated weight (vertical load). The horizontal force to be calculated is calculated. Accordingly, the horizontal force acting at the time of the earthquake is larger on the first floor A than on the second floor B.

  In addition, for example, the computer can store the allowable load data of the load-bearing wall and other structural design data, and can select the optimum load-bearing wall for the applied horizontal force during the design. It is.

  In particular, since the allowable loads are set in advance for each of the multiple types of load bearing walls, when a horizontal load acting on the building is set, the designer can easily determine from each horizontal load and the allowable load in each direction. It is possible to calculate the required number of bearing walls. In this way, the number of bearing walls for each layer and for each direction can be set using a computer, and can also be set manually.

  Next, a method for arranging the bearing walls used for the structural calculation of the building using the computer according to the present embodiment will be described according to the flowchart shown in FIG. 1, and the bearing walls for the outer wall or the partition wall corresponding to each step will be described. The arrangement procedure will be described with reference to FIGS.

  As described above, the bearing wall is set for each layer and for each direction. For this reason, the layout method of the load-bearing wall used for the structural calculation of the building using the computer according to the present embodiment is also executed in the north-south direction (Y direction) and the east-west direction of the building, for each level and for each direction. The arrangement of the bearing walls will be completed and completed. However, since the arrangement procedure of the bearing walls is the same in each direction and there is a risk of complicated explanation, in the following embodiment, the arrangement of the bearing walls in the north-south direction (Y direction) on the first floor A of the building. The procedure will be described, and the description of the arrangement procedure for the east-west direction and the second floor B will be omitted.

  In addition, the layout method of the load-bearing wall used for the structural calculation of the building using the computer according to the present invention can be advanced manually by a designer or a sales engineer. However, the operation of creating a large number of arrangement patterns and the operation of scoring each created arrangement pattern are monotonous, and it is advantageous to use a computer. For this reason, in this embodiment, necessary information is input to a computer and is calculated according to a predetermined program. Thereby, the outer wall 1 and the partition wall 2 formed for each layer and for each direction are reasonably load-bearing walls. 5 can be arranged.

  When placing a bearing wall, it is essential to set the plane shape of the building. For this reason, in step S1, the shape of a building is input. That is, the outer wall 1 (outer wall line 1) and the partition wall 2 of the first floor A shown in FIG. 2 are input, and the outer wall line 1 and the partition wall 2 of the second floor B shown in FIG. At this time, the positions of openings such as windows and doors formed in the outer wall 1 and the partition wall 2 and the fittings such as a bathtub, a sink, and a closet are also input. In this embodiment, all the parts except the input outer wall 1 and the partition wall 2 except for the openings are parts where the load bearing wall can be placed (installable part), and the load bearing wall is arranged in the installable part. It is said.

  In addition, rectangular or rectangular grids Ag1 to Ag6 and Bg1 to Bg6 in which pillars are arranged at the respective vertices are set on the floors A and B, and the positions of the respective vertices are input. The position of the vertex is set as a coordinate value with the lower left position as the origin O for each layer.

  Since the bearing wall 5 is disposed on the outer wall 1 and the partition wall 2, the positions of the outer wall 1 and the partition wall 2 constituting the planar shapes of the respective layers A and B may be set as described above, and further in the scoring process. It is only necessary that the position of the vertex of each grid to be used is set. The grids Ag1 to Ag6 and Bg1 to Bg6 set for each layer are used when scoring the degree of column adjacency in the scoring process to be described later. Ag1 to Ag6 and Bg1 to Bg6 are not required, and therefore it is not essential to set the respective grids in the present invention.

  However, when building structure calculation is performed, it is necessary to calculate the weight of the building. For this reason, in step S1, the contour line 6 of the frame constituting the planar shape of the first floor A is inputted, and the floor outer peripheral line 7 including the entrance porch 3, and the contour of the frame constituting the planar shape of the second floor B is also input. The floor surface outer peripheral line 7 including the line 6 and the veranda 4 is input, and further, the shape of the roof C shown in FIG. 4 is input. Also, the floor specifications necessary for calculating the weight of the building (for example, a general floor when the target building is a single-family house or a heavy floor when it is an apartment house, and the material and thickness of the floor) Etc.), roof specifications (for example, whether the roofing material is tile or asbestos cement board, etc.), the presence or absence of fireproof coating, and other conditions.

  By inputting the above conditions, the computer can calculate the weight of each floor of the first floor A, second floor B, and roof C, and can also calculate the specifications of the beams and columns that make up the building frame. It is.

  Next, in step S2, the necessary number of bearing walls 5 is input for each of the levels A and B and for each direction. The necessary number of bearing walls may be calculated and input from the result calculated in step S1 according to a program stored in the computer, or may be input by an engineer who operates the computer.

  That is, as described above, when the allowable load of the standard load-bearing wall 5 is known in advance, when the weight of the building is known, the horizontal force acting on the building by the product of the weight and the coefficient of seismic force is obtained. The value is known. Therefore, the required number of bearing walls can be calculated by dividing the horizontal force by the allowable load of the bearing walls 5. There is no limitation on whether such calculation is performed by a computer or an engineer.

  In this embodiment, it is assumed that 6 is input as the number of bearing walls 5 required in the Y direction constituting the first floor A, and these six bearing walls are arranged on a plurality of outer walls 1 and partition walls 2 in the Y direction. And

  Step S <b> 3 is an arrangement pattern creating step of creating a plurality of arrangement patterns by arranging the input required number of bearing walls on the outer wall 1 and the partition wall 2. In step S3, when the bearing wall 5 is arranged on the outer wall 1 and the partition wall 2 based on the planar shape input in step S1 and the required number of bearing walls input in step S2, the outer wall 1 and the partition wall 2 When there are more parts (installable parts) where the load-bearing walls can be installed than the required number of load-bearing walls, a plurality of arrangement patterns are created by arbitrarily placing the load-bearing walls for each installable part. .

  That is, FIGS. 5A to 5D show some examples of arrangement patterns of the load bearing walls 5 in the Y direction on the first floor A. FIG. For example, FIG. 6A shows the bearing wall 5 concentrated on the outer wall 1 and the partition wall 2 on the origin O side, and four bearing walls 5 are arranged on the grid Ag1, but the grid Ag3 is shown. Is an arrangement pattern that is not arranged at all.

  FIG. 6B shows a structure in which the load-bearing walls 5 are relatively dispersed in each of the grids Ag1 to Ag6. Three load-bearing walls 5 are arranged on the outer wall 1, and similarly, the three load-bearing walls 5 are arranged. Is an arrangement pattern in which is arranged on the partition wall 2. FIG. 2C shows an arrangement pattern in which five bearing walls 5 are arranged on the outer wall 1 and one bearing wall 5 is arranged on the partition wall 2. Further, FIG. 4D shows an arrangement pattern in which all the load-bearing walls 5 are concentrated on the part farthest from the origin O.

  Each of the arrangement patterns is created in the arrangement pattern creation process in step S3. In addition to the above example, the number of installable portions of the bearing walls 5 and the required number of bearing walls in the outer wall 1 and the partition wall 2 are provided. The number of arrangement patterns corresponding to is created. Therefore, a large number of arrangement patterns are created when the number of loadable wall installation portions increases. For this reason, in the scoring process to be described later, the amount of work for scoring each created arrangement pattern increases.

  If the processing capability of the computer is unlimitedly large, it does not matter whether the number of arrangement patterns increases. However, since there is no computer with infinite processing capacity in practice, the number of layout patterns can be reduced by the intervention of design engineers, sales engineers, or other engineers (engineers) when creating layout patterns. It is preferable to reduce. In this case, the interposition method of designating only the load-bearing wall lines Y1 to Y4 for arranging the load-bearing walls 5, and the number of load-bearing walls to be placed on the load-bearing wall lines Y1 to Y4 and the load-bearing wall lines Y1 to Y4, respectively. There is a way to specify.

  Hereinafter, the case where the engineer designates a plurality of bearing wall lines Y1 to Y4 (see FIG. 6) where the bearing walls 5 should be arranged from the outer wall 1 and the partition wall 2 in the Y direction constituting the first floor A will be described. .

  As described above, based on the shape of the building input in step S1 and step S2, the horizontal force acting in the Y direction calculated in advance, and the allowable load of the standard bearing wall 5 stored in advance, The reference number of bearing walls 5 (Ny) required in the Y direction is calculated. At this time, the reference number of bearing walls 5 is not necessarily an integer, and a numerical value after the decimal point may be calculated.

  Next, the reference number of the bearing walls 5 is calculated for each specified bearing wall Y1 to Y4. At this time, for example, consideration is given to conditions such as the load area of each of the designated load bearing wall lines Y1 to Y4, the positional relationship with the load bearing wall lines of the upper floor, and the shearing force acting on the floor surface. As a result, the reference number of the load bearing walls 5 to be arranged in each of the load bearing wall lines Y1 to Y4 is set. It is possible for the engineer to distribute the bearing walls 5 to the bearing wall lines Y1 to Y4 by making adjustments such that the numerical value after the decimal point is raised or rounded off based on this value.

  In this case, the number of bearing walls 5 to be placed on the bearing walls Y1 to Y4 is simply determined, and it is determined at which position on the bearing lines Y1 to Y4. It is not a thing. However, the number of arrangement patterns can be greatly reduced.

  Next, as shown in FIG. 6, the engineer specifies a plurality of bearing wall lines Y1 to Y4 in which the bearing walls 5 should be arranged from the outer wall 1 and the partition wall 2 in the Y direction constituting the first floor A. The case where the number of the bearing walls 5 to be arranged in each bearing wall Y1 to Y4 is designated will be described. Even in this case, the number of arrangement patterns can be significantly reduced.

  For example, the load-bearing wall lines Y1, Y2, and Y4 are specified for the three outer walls 1 along the Y direction, the load-bearing wall line Y3 is specified for the partition wall 2, and the load-bearing wall lines Y1 and Y4 have two yield strengths. When the wall 5 is specified and one load-bearing wall 5 is specified for Y2 and Y3, only two installable portions are formed on the load-bearing wall line Y1, and there is no degree of freedom. The arrangement of the load-bearing wall 5 with respect to the load-bearing wall line Y1 is uniquely determined, and since one installable portion is formed on the load-bearing wall line Y2, the arrangement of the load-bearing wall 5 with respect to the load-bearing wall line Y2 is also uniquely defined. Since the load bearing wall line Y3 has two installable portions, two arrangement patterns are formed, and on the load bearing wall line Y4, five installable portions are formed. It is formed. Therefore, 20 arrangement patterns are formed as a whole, and the number of arrangement patterns obtained by arranging the load bearing walls 5 in all the installable portions formed in the outer wall 1 and the partition wall 2 in an arbitrary state. It can be significantly reduced.

  As described above, the arrangement pattern is created by designating the bearing wall lines Y1 to Y4 in advance or designating the bearing wall lines Y1 to Y4 and specifying the number of the bearing walls to be arranged on each of the bearing wall lines Y1 to Y4. Even in such a case, the obtained arrangement pattern is an arrangement pattern created by arbitrarily arranging the necessary number of load bearing walls inputted to the installable portions of the load bearing walls in the outer wall 1 and the partition wall 2 described above. Are not different from each other.

  Step S4 is a scoring process. For all the arrangement patterns obtained in step S3, scoring is performed based on the items in Table 1, and the given points are totaled to obtain a total score for each arrangement pattern. To do.

  The column adjacency is a score depending on whether or not the load bearing walls 5 are in contact with the columns arranged at the vertices of each grid, and as shown in FIG. 7, two load bearing walls 5a are placed on the load bearing wall line Y4. , 5b, each bearing wall 5a, 5b is given 40 points when it touches the pillars 10 arranged at the vertices of the respective grids Ag3, Ag6, and when it does not touch the pillars 10 at the vertices. Even if there are 30 points in contact with the pillars necessary for the structure (the pillars under the Chianti take-out beam (not shown) or the pillars 11 in the protruding corners of the outer wall shown in the porch 3 in FIG. 2), 0 points are given otherwise. Points are awarded. Therefore, in the case of FIG. 7, the bearing wall 5a is in contact with the column 10 at the apex of the grid Ag3, so that 40 points are provided. However, the load bearing wall 5b is also necessary for other structures from the apex column 10 of the grid Ag6. Since it is not in contact with the pillar 10, 0 points are given. The total points in FIG. 7 are 40 points.

  The planar dispersion degree evaluates the degree of eccentricity and the high torsional rigidity in the planar shape accompanying the planar dispersion of the load bearing wall. When a plurality of bearing walls 5a and 5b are arranged on the same bearing wall Y4, for example, as shown in FIGS. 8A to 8C, two bearing walls 5a and 5b are arranged on the bearing wall Y4. In this case, 10% of the absolute value (HP) of the distance between the bearing walls 5a and 5b is given as a score. As shown in FIG. 5A, when two bearing walls 5a and 5b are arranged adjacent to each other, the width dimension of the bearing wall 5 becomes the absolute value (HP) of the coordinate value. In FIG. 5B, the position of the load bearing wall 5a is not changed, and the load bearing wall 5b is separated to the dimension in the Y direction of the grid Ag3. For this reason, the number | score provided is a larger value than the case of the figure (a). Further, in FIG. 4C, the load bearing wall 5b is separated to the end portion of the load bearing wall line Y4. For this reason, the largest score is given among the three parties.

  Here, the value of HP is set as a preset reference value, and there is no limitation on what value this value is. For example, in this embodiment, 610 mm is set as 1 HP. Therefore, for example, as shown in FIG. 8C, if the load bearing wall 5b is separated to the end portion of the load bearing wall line Y4, and the distance between the load bearing walls 5a and 5b is 5400 mm apart, the absolute value ( HP) is 5400 ÷ 610 = 8.8, and 10% (0.88) of this absolute value (HP) is given as a score.

  When only one bearing wall 5c is arranged on the bearing wall, for example, the planar dispersion of the bearing walls 5c arranged on the bearing wall Y3 shown in FIG. 10% of the absolute value (HP) of the average coordinate value of the arranged bearing walls 5 is given as a score. In this case, the adjacent load-bearing wall line is the load-bearing wall line Y2 closer to the origin O than the target load-bearing wall line Y3, and the coordinate value of the load-bearing wall 5e disposed on the load-bearing wall line Y2 (indicated by the line 12). 10% of the separation distance from is given as a score.

  Elevation degree of dispersion evaluates reducing the stress of columns, beams, or foundations attached to the bearing wall. This elevational dispersion is used when scoring the upper floor, and as shown in FIG. 9, the bearing wall 5f arranged on the upper floor is separated from the bearing wall 5g arranged on the lower floor. Points are given according to the separation distance. Therefore, it is not used in scoring on the first floor A.

  As shown in FIG. 5A, when the load bearing wall 5f arranged on the upper floor (second floor B) is separated from the load bearing wall 5g arranged on the lower floor (first floor A), that is, the load bearing wall. When 5f and 5g do not coincide with each other, 100 points are given, and as shown in FIGS. 5B and 5C, the start point or the end point of the load bearing wall 5f arranged on the upper floor is the lower load bearing wall 5g. 20 points are assigned if the start point or end point of the upper floor is coincident, and 0 points is assigned if the load bearing wall 5f on the upper floor and the bearing wall 5g on the lower floor completely coincide.

  As described above, scoring is performed for each item, and the final score of each placement pattern is calculated by adding all the given points, thereby scoring every placement pattern. Is possible.

Thereafter, determining the arrangement at step S5. In the present embodiment, the arrangement pattern (for example, FIG. 5C) with the highest score is selected from the arrangement patterns scored in step S4, and the outer wall 1 and the partition are selected based on the arrangement pattern. The arrangement of the load bearing wall 5 with respect to the wall 2 is determined.

  Next, in step S6, structure calculation is performed based on the position of the bearing wall arranged in step S5. That is, members other than the load-bearing wall 5 necessary for carrying out the structural design of the target building are generated, and integrated processing such as modeling, load generation, analysis of stress associated therewith, cross-sectional verification of the members, etc. is performed. .

  The structural calculation in step S6 is performed by calculating the relationship between the horizontal force acting on the load bearing wall 5 and the allowable load for each load bearing wall 5. And when the load bearing wall 5 exists where excessive horizontal force is applied or the applied horizontal force is extremely small, the current arrangement of the load bearing wall 5 is denied.

  As described above, when there is a problem in the position of the load bearing wall 5 arranged through the procedure up to step S5, the process proceeds to step S7, and the load bearing strength is set so that each load bearing wall 5 can bear a substantially equal horizontal force. Add or move walls 5 to relocate. Then, after the load bearing wall 5 is rearranged, the process returns to step S6, and the structure calculation is performed again based on the position of the load bearing wall 5 rearranged in step S6.

  The rearrangement of the load-bearing wall 5 is repeated until the structural calculation is satisfied in step S6. When the result of the structural calculation in step S6 is a satisfactory value, the series of procedures is terminated, and the load-bearing wall is completed. This completes the placement method.

  In the above procedure, only the case where a plurality of bearing walls 5 are arranged on the outer wall 1 and the partition wall 2 in the direction (Y direction) along the north-south direction on the first floor A of the building has been described. The method of arranging the bearing wall 5 in the intersecting direction (east-west direction) and the method of arranging the bearing wall 5 in each direction of the second floor B are not changed at all. Can be arranged.

  When it is determined that the load-bearing wall 5 is reasonably arranged after executing the load-bearing wall arrangement method, it is preferable to make a determination for members other than the load-bearing wall 5. In this determination, for example, when a horizontal force is applied to the load bearing walls 5 arranged in the load bearing wall lines Y1 to Y4, the stress acting on the individual beams constituting the load bearing wall lines Y1 to Y4 is determined. If there is a beam on which stress acts, the arrangement of the members is denied. As a result, the members other than the bearing wall 5 are rearranged. This operation is performed for all members.

  As described above, if it is determined that all the members other than the bearing wall 5 are reasonably arranged, the structural design for the target building is completed.

As an application example of the present invention, the arrangement of the load bearing walls used in the structural calculation of the building using a computer that can appropriately place the load bearing walls on the outer wall and / or the partition wall of each floor in the target building The present invention can be applied to a method and a computer program including the method .

It is a flowchart explaining the procedure of the arrangement | positioning method of a load-bearing wall used for the structural calculation of the building using the computer which concerns on a present Example. It is a figure which shows the planar shape of a 1st floor, and shows an outer wall line, a partition wall line, and a grid. It is a figure which shows the planar shape of a 2nd floor, and shows an outer wall line, a partition wall line, and a grid. It is a roof plan. It is a figure which shows the example of the arrangement | positioning pattern which has arrange | positioned the bearing wall required for the 1st floor in the Y direction (the north-south direction, the up-down direction in a figure). It is a figure which shows the state which set the bearing wall in the 1st floor previously, and allocated the bearing wall to each bearing wall. It is a figure explaining pillar adjacency. It is a figure explaining planar dispersion degree. It is a figure explaining a three-dimensional dispersion degree. It is a figure which shows the planar shape of the 1st floor and 2nd floor of the target building.

Explanation of symbols

A ... 1st floor B ... 2nd floor C ... Roof Ag1-Ag, Bg1-Bg6 ... Grid Y1-Y4 ... Bearing wall 1 ... Outer wall 2 ... Partition wall 3 ... Entrance porch 4 ... Veranda 5 ... Bearing wall 6 ... Outline of the frame Line 7 ... Floor circumference line
10, 11 ... Pillar

Claims (4)

A layout method of load bearing walls used for structural calculation of a building using a computer,
Each direction in each level calculated in advance using the planar shape including the outer walls and partition walls of each level of the building, the horizontal load acting on each level of the building, and the allowable load of the standard bearing wall A process of inputting and setting the required number of bearing walls of a standard bearing wall into a computer;
The computer recognizes the positions of the outer wall and the partition wall constituting the planar shape set in each level as a part where the load-bearing walls can be arranged, and has a number larger than the required number of load-bearing walls in each level and each direction. An arrangement pattern creating step of arranging a standard bearing wall at a part where the bearing wall can be arranged, and creating a plurality of arrangement patterns of the bearing walls for the outer wall and the partition wall constituting the planar shape by calculation of the computer; ,
For each of the arrangement patterns created in the arrangement pattern creation step, the respective proof stresses calculated by the computer based on the evaluation items of the column adjacent degree of the load bearing wall, the planar dispersion degree, and the elevational dispersion degree set in advance. Using the score of the wall, a scoring step of assigning an evaluation score to the arrangement pattern of the load bearing walls in each layer and each direction and scoring by calculation of the computer,
Have
That determine the arrangement of each layer and each direction of the bearing wall by selecting an arrangement pattern based on the final score for each hierarchy and each direction granted at the scoring step, the computer, wherein the this Load-bearing wall placement method used for building structural calculations using GIS. The required number of bearing walls of the standard bearing wall in each direction in each level is
Each condition for calculating the load of the building is input by the computer, the horizontal load acting on each level of the building calculated by the computer processing, and the allowable load of the standard load-bearing wall stored in the computer The method for arranging a bearing wall used for the calculation of the structure of a building using a computer according to claim 1, wherein the setting is calculated and set by an operation of the computer. 3. The computer according to claim 1, wherein in the arrangement pattern creating step, the part where the bearing wall can be arranged is an outer wall or a partition wall on the bearing wall for arranging the bearing wall. Load-bearing wall layout method used for structural calculation of the building. The computer program used for the structural calculation of the building characterized by including the layout method of the load-bearing wall used for the structural calculation of the building using the computer of any one of Claims 1-3.

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