JPH09302766A - Method for supporting structural-design of dwelling house - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a structural-design supporting method, in which the structure of a dwelling house to be designed is computed by using a computer and the center of gravity of earthquake load and the center of rigidity of a bearing wall can be brought close sufficiently. SOLUTION: The place of the center of gravity M of earthquake load is computed by inputting the external wall lines L1, L2 of a dwelling house while data regarding the roof, etc., of the dwelling house are input to a computer on the picture plane of the computer, and displayed on the picture plane, a plurality of bearing walls 2 are input at proper places along the external wall line L2 on the picture plane while referring to the displayed position of the center of gravity M of earthquake load, and the places of the centers of rigidity N of a plurality of the bearing walls 2 are computed and indicated on the picture plane. The places of the centers of rigidity N and the place of the center of gravity M of earthquake load are compared, and the arrangement of the bearing walls 2 is corrected as required.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for supporting a structure of a house, in which a bearing wall of the house is arranged by using a computer.

[0002]

2. Description of the Related Art Conventionally, in the structural calculation for designing a low-rise house, the individual load and load center of each load element such as roof, wall and floor are calculated, and then the overall load, load center and earthquake While calculating the force and wind pressure, calculate the rigidity of a predetermined number of load bearing walls arranged in key points in the wall, check the strength of the load bearing wall from each result, and further calculate the horizontal plane rigidity, etc. Was going to do.

[0003]

However, performing the structural calculation by hand as described above is extremely complicated and requires a long time, and the rigidity of the load-bearing wall against the seismic load center of the house is increased. If the mind is greatly deviated, there may be a problem that sufficient seismic resistance cannot be obtained even if the number of load bearing walls is sufficient in structural calculation.

[0004]

SUMMARY OF THE INVENTION The present invention solves the above problems by using a computer to calculate the structure of a house to be designed, and to sufficiently determine the seismic load center and the bearing wall rigidity. It is an object to provide a structural planning support method that can be approached. Therefore, the structure planning support method according to claim 1 inputs the outer wall line of the house on the screen of the computer, and also inputs the data on the roof of the house to the computer, thereby causing the seismic load of the house to the computer. The heart is calculated and displayed on the screen, and after inputting a plurality of load bearing walls at appropriate positions along the outer wall line on the screen while referring to the seismic load heart displayed subsequently, the plurality of the walls are input to the computer. The strength of the load bearing wall is calculated and displayed on the screen, and the strength of the load bearing wall is compared with the center of gravity of the seismic load to correct the location of the load bearing wall. is there.

Here, the seismic load center is calculated by the computer, the load bearing walls are input on the screen with reference to the seismic load bearing, and subsequently the rigid centers of the plurality of input load bearing walls are calculated. This rigidity and the seismic load center are compared. And
When the seismic load center and the rigid center are far apart from each other,
By modifying the arrangement of the load bearing walls, the seismic load center and the rigid center can be brought sufficiently close to each other, and the earthquake resistance can be improved.

[0006]

Embodiments of the present invention will be described below with reference to the drawings. In the present embodiment, a personal computer (hereinafter referred to as a personal computer) is used,
A plurality of load bearing walls are arranged at appropriate positions along the outer wall line of the house, and it is judged whether or not sufficient strength can be given to the house by these load bearing walls. Correct the placement of. The procedure for arranging the bearing wall of a two-story house will be described below with reference to the flowchart of FIG.

Various conditions are input in S1, and then S2
Then, as will be described later, the building shape (outer wall line) of each of the first floor and the second floor (1F, 2F) is input on the screen of the personal computer. Next, in S3, types of load elements such as walls, roof, floor, etc. are input, and in S4, the roof shape is input. Then, in S5, the layout of the load bearing wall on the second floor is input along the outer wall line, and S
Check the loaded horizontal force and eccentricity (at the time of earthquake load) of each bearing wall that has been input in 6. If the loaded horizontal force exceeds the allowable range in any bearing wall, return to S5, Correct the layout of the bearing wall on the second floor.

If the horizontal force and eccentricity of the bearing wall on the second floor are within the permissible range in S6, then the same operations as in S5 and S6 are performed on the bearing wall on the first floor in S7 and S8. Subsequently, in S9, the load is summarized, that is, the results of the load calculation are displayed together, and the resultant force of the portions where the first and second floor bearing walls overlap is checked. If the check result is not acceptable, the process returns to S5, while if the check result is acceptable, a shear force check is subsequently performed in S10 to determine whether or not horizontal bracing is necessary. If the result of the shearing force check is unacceptable, the horizontal brace is secured in S11, and then the process is terminated, while if the result of the shearing force check is acceptable, the process is ended.

2 and 3 are plan views of the first and second floors, and FIGS. 4 and 5 are east side elevation views and south side elevation views, respectively. The procedure for arranging the wall will be described more specifically. First, on the building shape input screen shown in FIG. 6, the outline of the first floor of the house is input while drawing a diagram on the screen of the personal computer. That is, using the input tool such as the mouse 1 attached to the personal computer, the outer wall line L1 on the first floor of the house is entered as a polygonal line with reference to the plan view of FIG. As the input method of the outer wall line L1, a polygon input for designating each polygon by designating each vertex of the polygon, a BOX, that is, designating the rectangle by designating two vertices located on the diagonal of the rectangle. An appropriate method such as a BOX input to make the selection can be used.

Then, as shown in FIG. 7, the outer wall line L2 on the second floor of the house is input with reference to the plan view of FIG. At this time, if the entered outer wall line L1 of the first floor is displayed by a solid line or a dotted line, the outer wall line L of the first and second floors is displayed.
This is preferable because it is easy to grasp the mutual position of 1 and L2.

When the input of the outer wall lines L1 and L2 is completed, the load elements such as the outer wall, the type of the roof, the floor, etc. are then input to the personal computer. At this time, data such as the position of the lowering part is also input. That is, in the load element input screen shown in FIG. 8, the outer wall line L2 of the second floor that has been input is displayed,
When the range of the thatching section A is designated by the mouse 1 or the like and inputted, for example, the thatching section A is displayed by cross hatching or the like.

Then, the shape of the roof of the house is input on the roof shape input screen shown in FIG. In the present embodiment, the roof shape is classified into, for example, 9 types of type 1 to type 9, and the shape model for each type is displayed near the right end portion of the roof shape input screen. The operator is X
For each of the (horizontal) direction and the Y (longitudinal) direction, it is selected which of the types 1 to 9 the roof belongs to, and the information is input to the personal computer.

The roof in the X direction (the roof of the second floor)
Based on the east side elevation view of FIG. 4, the shape is considered to be type 3, and the number “3” is input. Although the type 3 shape model and the shape of the roof in the east side elevation are symmetrical, the symmetrical ones belong to the same type. On the other hand, the shape of the roof in the Y direction (the roof of the second floor) is considered to be type 7 based on the south side elevation view of FIG. 5, and the number “7” is input. In addition, the height of the house-the height of the house (unit: m) is input for each of the X and Y directions.

When the input of the data regarding the specifications of the roof and the like is completed, next, on the load bearing wall arranging screen of FIG. 10, first, a plurality of load bearing walls 2 are placed at appropriate positions on the outer wall line L2 on the second floor of the house. Strength evaluation. At this time, the personal computer calculates the reference number LX and LY of the load-bearing wall 2 in each of the X and Y directions based on the data regarding the specifications of the outer wall line L2 and the roof etc. that have been input, and displays them in the upper right corner of the screen. indicate. In this case, the standard number LX in the X direction is 3.6,
The standard number of sheets LY in the direction is 5.2.

The personal computer calculates the seismic load center M (center of gravity) based on the input shape data and specification data, displays the seismic load center M on the screen, and displays its X and Y coordinates. The value of, in this case, for example (6.56,
4.69) is displayed on the screen. As is clear from FIG. 10, -1, 0, 1, ..., 14 are set and displayed in the left-right direction along the lower edge of the screen as the X coordinate, and the Y coordinate is displayed on the screen as the Y coordinate. -1, along the left edge
0, 1, ..., 9 are set and displayed.

The input operator inputs and arranges a desired number of load bearing walls 2 along the outer wall line L2 on the screen using the mouse 1 or the like while referring to the reference number of sheets LX, LY and the seismic load center M. Go on. The input bearing wall 2 is displayed by a thick line, for example. When the placement of the load bearing wall 2 is completed on the screen,
Then, the personal computer calculates the burden rate P and the stiffness reduction value Q of each load bearing wall 2 by the built-in program, and the calculation result is shown in FIG.
No. 1 bearing wall load Horizontal force Display on the screen.

Further, the personal computer calculates the rigid center N of the input bearing wall 2 and displays it on the screen. Here, a method of calculating the rigid center N of the plurality of load bearing walls 2 arranged as shown in FIG. 10 will be described. In the X direction, three load bearing walls 2 are located at coordinates 2
One bearing wall 2 is arranged at each of the coordinates 8 and 9, and two bearing walls 2 are arranged at the coordinate 11. Here, the rigid position is calculated in consideration of the reduction in rigidity of the bearing wall 2 located on the beam. Rigidity in X direction N _X = (2.09 × 2 + 2 × 1
1) / (2.09 + 2) = 6.40, similarly the rigidity in the Y direction N _Y = (0.32 × 1 + 1.18 × 2 + 1.46 ×
8) / (0.32 + 1.18 + 1.46) = 4.85.

The load factor P of each load bearing wall 2 is a value obtained by dividing the load horizontal force by the horizontal allowable force. When the load factor P of any of the load bearing walls 2 exceeds "1", the load bearing wall 2 It is necessary to change the arrangement of. The load factor P is displayed on the lower side of each load bearing wall 2 in FIG. 11, and the rigidity reduction value Q is displayed on the upper side. In the case of this example, since the burden ratio P is "1" or less for all the bearing walls 2, the bearing walls 2 are arranged accurately and no correction is necessary.

On the other hand, when the load factor P of any of the load bearing walls 2 exceeds "1", the number of load bearing walls 2 is increased or the position where the load bearing walls 2 are arranged is modified. After that, the personal computer is made to calculate the burden ratio P and the rigidity reduction value Q again, and it is confirmed that the burden ratios P of all the bearing walls 2 are "1" or less.

The load factor P of all the bearing walls 2 is "1".
Even in the following cases, when the load factor P of any or all of the load bearing walls 2 is excessively small and it is expected that the required strength can be obtained even if the number of load bearing walls 2 is reduced, the load bearing walls 2 It is safe to make corrections to reduce the number of cards.

Further, in this example, the seismic load center M and the bearing wall 2
Since the rigid center N is relatively close to this point, it is not necessary to correct the arrangement of the bearing wall 2 also from this point. On the other hand, when the seismic load center M and the rigid center N of the bearing wall 2 are greatly separated, even if the load factor P of each bearing wall 2 is 1 or less, the arrangement of the bearing walls 2 is corrected to It is preferable to make N as close as possible to the seismic load center M. In that case, the maximum value of the allowable error between the seismic load center M and the rigid center N of the bearing wall 2 can be set in advance. As shown in FIG. 12, if necessary, instead of the burden ratio P, the burden horizontal force R (unit: kg
f) can also be displayed on the screen.

After the placement of the load bearing walls 2 along the outer wall line L2 on the second floor is completed, the load bearing walls 3 are subsequently placed along the outer wall line L1 on the first floor on the load bearing wall layout screen of FIG. Also here, the reference number LX and LY of the load bearing walls 3 in the X and Y directions.
Is displayed in the upper right corner and the seismic load center M
(6.29, 4.58) is displayed on the screen. Also, the already-arranged load-bearing walls 2 on the second floor are displayed in solid lines (white on the screen), and the input operator must not over-overlap the positions of the load-bearing walls 3 on the first and second floors. The bearing wall 3 on the first floor will be placed in consideration of the above.

When the arrangement of the load bearing walls 3 on the first floor is completed, the personal computer calculates the burden rate P and the earthquake load center M (6.29, 4.58) of each load bearing wall 3 in the same manner as above, and FIG. The load bearing wall of the horizontal force displayed on the screen. When the load factor P of one of the load bearing walls 3 exceeds "1", or when the rigidity N (6.8)
6 and 4.0) are greatly separated from the seismic load center M, after correcting the number of the bearing walls 3 or the arrangement position,
The burden rate P is calculated again. Further, if necessary, as shown in FIG. 15, the burden horizontal force R of each load bearing wall 3 can be displayed. After checking the burden rate P and the like, as described above, the load summary is displayed, the shearing force is checked, and the like, and the structural calculation is completed.

It is to be noted that a program for causing a personal computer to perform the processing described in the above-mentioned embodiments is written in advance in a computer language in a floppy disk or CDR.
The method of the present invention can be effectively spread by recording in a recording medium such as OM and using or selling the recording medium.

[0025]

As described above, the method for supporting the structure of a house according to the present invention is performed by inputting the outer wall line of the house on the screen of the computer and by inputting the data on the roof of the house into the computer. , The computer calculates the seismic load center of the house and displays it on the screen, and then inputs a plurality of load bearing walls on the screen at appropriate positions along the outer wall line while referring to the displayed seismic load center. After that, the computer is caused to calculate the rigid centers of the load bearing walls and displayed on the screen, and the rigidity and the seismic load center are compared to correct the placement of the bearing walls as necessary. Therefore, there is an advantage that the analysis work and the work for correcting the arrangement of the load bearing wall when the strength is insufficient are easier than the case where the design and structure analysis of the house are manually performed.

[Brief description of drawings]

FIG. 1 is a flowchart showing a procedure for arranging a bearing wall according to the method of the present invention.

FIG. 2 is a view of a house in which a bearing wall is arranged by the method of the present invention.
Plan view of the floor.

FIG. 3 is a plan view of the second floor of the house.

FIG. 4 is an east side elevational view of the house.

FIG. 5 is a south side elevational view of the house.

FIG. 6 is an explanatory diagram showing a building shape input screen for inputting an outer wall line on the first floor of the house.

FIG. 7 is an explanatory diagram showing a building shape input screen for inputting an outer wall line on the second floor of the house.

FIG. 8 is an explanatory view showing a load element input screen for inputting data on the roofing portion of the roof of the house.

FIG. 9 is an explanatory view showing a roof shape input screen for inputting the roof shape of the house.

FIG. 10 is an explanatory view showing a load bearing wall placement screen for placing load bearing walls on the second floor of the house.

FIG. 11 is an explanatory diagram showing a load bearing wall horizontal force screen displaying a burden ratio of the load bearing wall on the second floor.

FIG. 12 is an explanatory diagram showing a load bearing wall load horizontal force screen displaying a load bearing force of the load bearing wall on the second floor.

FIG. 13 is an explanatory diagram showing a load bearing wall placement screen for placing load bearing walls on the first floor of the house.

FIG. 14 is an explanatory view showing a load bearing wall load horizontal force screen displaying a load factor of the load bearing wall on the first floor.

FIG. 15 is an explanatory diagram showing a load bearing wall load horizontal force screen displaying a load bearing force of the load bearing wall on the first floor.

[Explanation of symbols]

 L1, L2 outer wall line 2, 3 bearing wall

Claims (1)

[Claims] 1. An outer wall line of a house is input on the screen of a computer, and data on the roof of the house is input to the computer, thereby causing the computer to calculate the seismic load center of the house and displaying on the screen. Displayed, and after inputting a plurality of load bearing walls at appropriate positions on the screen along the outer wall line while referring to the displayed seismic load center, the computer calculates the rigidity of the load bearing walls. A method for supporting the structure planning of a house, characterized in that the rigidity and the seismic load center are compared with each other and displayed on the screen, and the layout of the bearing wall is corrected if necessary.