Earthquake response analysis system for wooden buildings, earthquake response analysis program for wooden buildings, and recording medium on which the program is recorded

Abstract

To provide a system capable of performing seismic response analysis of a wooden building by simple input, without depending on experts.SOLUTION: A seismic response analysis system of a wooden building comprises: first means for selecting and inputting a lightweight roof or a heavyweight roof; second means for inputting a floor area; third means for calculating mass by a signal from the first and second means; fourth means for inputting the number of bearing elements such as a brace and a plywood; fifth means for receiving the signal from the fourth means, and calculating at least one of initial rigidity of the wooden building, break point load, a rigidity reduction rate, and an attenuation constant; and sixth means for receiving the signal from the third and fifth means, and calculating at least a maximum interlayer displacement in X, Y each direction.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present invention relates to a system for analyzing the earthquake response of a wooden building, a program for analyzing the earthquake response of a wooden building, and a recording medium on which the program is recorded. [Background technology]

[0002] Conventionally, various earthquake response analysis programs capable of performing highly accurate earthquake response analysis have been proposed (see, for example, Patent Documents 1, 2 and 3).

[0003] For example, in conventional analysis systems, the prerequisite for earthquake response analysis of a mass point system is to replace the mass of each floor of a wooden building with a skewer-shaped model of dumplings. That is, as shown in Figure 5, the mass (weight) of each floor of a wooden building is replaced by a dumpling, and the earthquake-resistant elements of each floor are replaced by a skewer.

[0004] Then, first, as shown in Figure 6, (1) enter the number of floors = number of mass points, and then enter the number of elements (type of shear wall (shear element)) for each mass point. Here, the number of elements is set to 2 because there are two types: braced walls and structural plywood walls. This number increases as other earthquake-resistant elements are added. Next, as shown in Figures 7 and 8, enter the floor height and mass (weight).

[0005] Next, the seismic elements of the skewer section are modeled. Various models are known, but for example, a bilinear model is used, as shown in the left part of Figure 9. Then, as shown in the right part of Figure 9, the initial spring constant K1 of each seismic element is input. Next, as shown in Figure 10, the break point load Qy and stiffness reduction rate K2 / K1 are input. Note that K2 may also be input directly instead of the stiffness reduction rate.

[0006] Also, as shown in Figure 11, the damping constant (the value of the damping characteristics before plastic deformation (before Qy)) is entered. In this case, there are various items, but the most popular damping characteristics are input as a stiffness proportional type. Up to this point, we have been entering the properties (characteristics) of the building.

[0007] Next, we select and set the seismic waves to be input into the skewered model (lumped mass model). As shown in Figure 12, here, analysis is performed using a total of six types of seismic waves, consisting of three types of earthquakes and two types of input levels. An example of the output from the general-purpose software is shown in Figure 13. [Prior art documents] [Patent documents]

[0008] [Patent Document 1] Japanese Patent Application Laid-Open No. 2008-276474 [Patent Document 2] Japanese Patent Application Laid-Open No. 2012-63365 [Patent Document 3] Japanese Patent Application Laid-Open No. 2018-200288 Summary of the Invention [Problem to be solved by the invention]

[0009] On the other hand, most wooden houses today are only subject to simple structural analysis such as wall volume calculations. This is because the current Building Standards Act requires that "a building must not collapse if it is hit by a single major earthquake." However, given the recent frequent occurrence of major earthquakes, this is no longer sufficient. What is needed is an accurate assessment of the extent of damage to structural members and finishing materials when a building is hit by multiple major earthquakes, the level of remaining seismic capacity, and whether the building can be used safely in the next earthquake.

[0010] To evaluate this, earthquake response analysis is necessary, but the analysis system mentioned above is intended for experts and is considered difficult for amateurs to use. Therefore, there is a demand for a system that allows even amateurs to easily input conditions and analyze earthquake response.

[0011] The present invention provides an earthquake response analysis program for wooden buildings that simplifies the input of conditions and allows even non-experts to analyze earthquake responses, a computer-readable recording medium on which the analysis program is recorded, and an earthquake response analysis device for wooden buildings. [Means for solving the problem]

[0012] The earthquake response analysis system for a wooden building according to one aspect of the present invention is a system for analyzing the earthquake response of a wooden building, and includes: a first means for selecting and inputting whether the roof is a light roof or a heavy roof; Floor by floor a second means for inputting the floor area, and a signal from the first and second means Floor by floor The wooden building is characterized by comprising a third means for calculating mass, a fourth means for inputting the number of load-bearing elements such as braces and plywood, a fifth means for receiving a signal from the fourth means and calculating at least one of the initial stiffness, bending load, stiffness reduction rate, and damping constant of the wooden building, and a sixth means for receiving signals from the third and fifth means and calculating at least the maximum inter-story displacement in each of the X and Y directions.

[0013] In this way, it becomes possible to analyze earthquake response without the need for the conventional complicated calculations, and even non-experts can analyze earthquake response by simply inputting conditions. Here, the operator selects whether the roof is light or heavy depending on whether the roof is light or heavy, for example, a heavy roof for a tiled roof, or a light roof for a slate roof. The fourth means may also be to input the total number of each type of load-bearing element, or the total number of load-bearing elements such as braces and plywood.

[0014] Furthermore, it is desirable for this earthquake response analysis system for wooden buildings to further include seventh means for receiving signals relating to the maximum inter-story displacements in the X and Y directions from the sixth means and calculating the maximum inter-story deformation angle, and it is even more desirable for it to further include eighth means for determining whether the maximum inter-story deformation angle calculated by the seventh means exceeds a predetermined deformation angle. This makes it easier to understand the calculation results of the earthquake response analysis.

[0015] Furthermore, it is desirable that this earthquake response analysis system for wooden buildings further comprises a ninth means for calculating the number of load-bearing elements that are lacking in order to bring the maximum inter-story deformation angle within a predetermined deformation angle when it is determined that the maximum inter-story deformation angle calculated by the eighth means exceeds the predetermined deformation angle. In this way, the number of load-bearing elements that is lacking to satisfy the criteria can be seen at a glance.

[0016] Furthermore, this earthquake response analysis system for wooden buildings further comprises a means for inputting the floor height of the building, and in the case of a wooden building with two or more floors, the fourth means can input the number of the load-bearing elements for each floor. In this way, it can also be used for multi-story wooden buildings.

[0017] Furthermore, in the case of a wooden building with two or more stories, this earthquake response analysis system for wooden buildings can calculate the maximum inter-story displacement in the X and Y directions for each floor by using the sixth means. In this way, it becomes possible to calculate the maximum inter-story displacement for each floor in the case of a multi-story building.

[0018] Furthermore, in this earthquake response analysis system for wooden buildings, the fourth means further comprises a configuration for inputting the number of seismic control devices in addition to the input of the number of load-bearing elements, which makes it possible to handle wooden buildings equipped with seismic control devices.

[0019] In addition, the fifth means of this earthquake response analysis system for wooden buildings receives a signal from the fourth means, and models the wooden building in a skewer-like shape, regarding the mass of each floor as a dumpling and the earthquake-resistant elements of each floor as a skewer, thereby calculating at least one of the initial stiffness, bending load, stiffness reduction rate, and damping constant.

[0020] In addition, the earthquake response analysis system for wooden buildings is configured such that the third means calculates a predetermined value depending on whether the roof is heavy or light. Floor by floor A given mass Floor by floor The floor area of ​​a wooden building Floor by floorThis is a means for calculating mass. With this configuration, it is possible to calculate the mass of an actual wooden building without using complex calculations. Although the mass of an actual wooden building changes depending on the floor height, this calculation is possible because the increase or decrease in mass due to floor height is not a large difference.

[0021] In addition, the earthquake response analysis system for wooden buildings includes, in the sixth means, Floor by floor The mass calculated by the third method Floor by floor The mass is calculated by multiplying the mass by a predetermined coefficient that is equal to or less than 1. Here, the predetermined coefficient that is equal to or less than 1 is, for example, a numerical value such as 2 / 3 or 7 / 10. With this configuration, by multiplying the mass of a wooden building by a predetermined coefficient that is equal to or less than 1, the load borne by the frame (only earthquake-resistant elements) can be calculated.

[0022] This wooden building earthquake response analysis system is also characterized by further comprising a ninth means for inputting the building's floor height. Since floor height does not vary significantly from building to building, it is possible to perform analysis using a predetermined floor height value. However, by inputting the actual floor height of the building, more accurate analysis results of the earthquake response can be obtained. For wooden buildings with two or more floors, the system may be configured to allow the floor height of each floor to be input.

[0023] The earthquake response analysis program for a wooden building according to one aspect of the present invention is a program for analyzing the earthquake response of a wooden building, and includes: a first means for selecting and inputting whether the roof is a light roof or a heavy roof; Floor by floor a second means for inputting floor area, and a signal from the first and second means; Floor by floor The computer functions as a third means for calculating mass, a fourth means for inputting the number of load-bearing elements such as braces and plywood, a fifth means for receiving a signal from the fourth means and calculating at least one of the initial stiffness, bending load, stiffness reduction rate, and damping constant of the wooden building, and a sixth means for receiving signals from the third and fifth means and calculating at least the maximum inter-story displacement in each of the X and Y directions.

[0024] Furthermore, the earthquake response analysis program for wooden buildings causes the computer to function as seventh means for receiving signals relating to the maximum inter-story displacements in the X and Y directions from the sixth means and calculating the maximum inter-story deformation angle.

[0025] In addition, this earthquake response analysis program for wooden buildings causes the computer to function as eighth means for determining whether the maximum inter-story deformation angle calculated by the seventh means exceeds a predetermined deformation angle.

[0026] In addition, this earthquake response analysis program for wooden buildings causes the computer to function as a ninth means for calculating the number of load-bearing elements that are missing to bring the maximum inter-story deformation angle within a predetermined deformation angle when it is determined that the maximum inter-story deformation angle calculated by the eighth means exceeds the predetermined deformation angle.

[0027] In addition, this earthquake response analysis program for wooden buildings causes the computer to function as a means for inputting the number of floors of the building, and the fourth means makes it possible to input the number of load-bearing elements for each floor in the case of a wooden building with two or more floors.

[0028] Furthermore, in the case of a wooden building having two or more stories, this earthquake response analysis program for a wooden building can calculate the maximum inter-story displacement in each of the X and Y directions for each story by the sixth means.

[0029] Moreover, in this earthquake response analysis program for wooden buildings, the fourth means further has a configuration for inputting the number of seismic control devices in addition to inputting the number of load-bearing elements.

[0030] In addition, in the earthquake response analysis program for wooden buildings, the fifth means receives a signal from the fourth means, and models the wooden building in a skewer-like shape, regarding the mass of each floor as a dumpling and the earthquake-resistant elements of each floor as a skewer, thereby causing a computer to calculate at least one of the initial stiffness, bending load, stiffness reduction rate, and damping constant.

[0031] In addition, the earthquake response analysis program for wooden buildings is configured such that the third means is a predetermined method for calculating the earthquake response of a wooden building depending on whether the roof is heavy or light. Floor by floor A given mass Floor by floor The floor area of ​​a wooden building Floor by floor It is a means of calculating mass.

[0032] In addition, the sixth means of the earthquake response analysis program for a wooden building is Floor by floor The mass calculated by the third method Floor by floor The mass calculated by multiplying the mass by a predetermined coefficient of 1 or less is used.

[0033] This earthquake response analysis program for wooden buildings also causes the computer to function as a ninth means for inputting the floor height of the building. In addition, in the case of wooden buildings with two or more floors, the program may be configured so that the floor height of each floor can be input.

[0034] A computer-readable storage medium having recorded thereon a seismic response analysis program for a wooden building according to one embodiment of the present invention is a computer-readable recording medium having recorded thereon a seismic response analysis program for a wooden building according to any one of claims 13 to 24. [Effects of the Invention]

[0035] According to the present invention, even non-experts and laypeople can easily input conditions and analyze earthquake response. [Brief explanation of the drawings]

[0036] [Figure 1] 1 is a block diagram showing the configuration of an earthquake response analysis system for a wooden building according to one embodiment of the present invention. [Figure 2] 1 is a diagram showing a flow of an earthquake response analysis system for a wooden building according to an embodiment of the present invention. [Figure 3] 10A and 10B are diagrams showing an input screen and an analysis result screen. [Figure 4] FIG. 10 is a diagram showing another analysis result screen. [Figure 5]FIG. 1 is an explanatory diagram of modeling a building. [Figure 6] FIG. [Figure 7] FIG. [Figure 8] FIG. [Figure 9] FIG. [Figure 10] FIG. [Figure 11] FIG. [Figure 12] FIG. [Figure 13] FIG. 10 is a diagram showing the analysis results of internal processing. [Figure 14] FIG. 10 is a diagram showing the analysis results of internal processing. [Figure 15] FIG. 10 is a diagram showing the analysis results of internal processing. [Figure 16] FIG. 10 is a diagram showing the analysis results of internal processing. [Figure 17] FIG. 10 is a diagram showing the analysis results of internal processing. [Figure 18] FIG. 10 is a block diagram showing the configuration of an earthquake response analysis system for a wooden building according to another embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0037] An embodiment of the present invention will be described below with reference to the drawings, but the present invention is not limited to the following embodiment. Note that the following embodiment is an example in which a client PC is used, but the present invention can also be implemented by using a smartphone or tablet instead of the client PC.

[0038] <1.Equipment configuration> Figure 1 is a block diagram showing the equipment configuration of an earthquake response analysis system according to one embodiment of the present invention. This system can be run as a standalone system on a single client PC, or it can be run by accessing a server from the client PC. Since the difference between these two systems is whether the program is executed on the client PC or the server, the case where the system runs on a client PC will be explained below. Hereinafter, the client PC will be simply referred to as a terminal.

[0039] Terminal 1, which constitutes the earthquake response analysis system, is functionally configured to include a storage unit 11 that stores the earthquake response analysis program and input data, and a calculation unit 12 that uses the program and data to calculate analysis results, etc. These functions are realized by a CPU that processes the program, a ROM that stores the program and data in advance, a RAM that temporarily stores the program and data when the program is executed, and a HDD that stores the program and a large amount of data. Terminal 1 also includes an interface to which the CPU and HDD are connected, and a display, keyboard, mouse, etc. are connected via the interface.

[0040] The HDD can be any type that can store data, including non-volatile SSDs. The interface also includes those for connecting the above-mentioned displays and keyboards, as well as those for connecting communication-capable devices. Specific examples include USB, LAN, SCSI, and IEEE connections. The CPU, ROM, RAM, HDD, and interface are interconnected via a motherboard, for example.

[0041] <2. Flow> Next, the flow of the earthquake response analysis system of this embodiment will be described. As shown in Figures 2 and 3, the operator operating terminal 1 starts up the system and, on the input screen displayed on the display, inputs the number of floors of the building to be analyzed, whether the roof is light or heavy, the floor area, floor height, the number of strength elements in the X direction, and the number of strength elements in the Y direction. For example, if the roof is tiled or the like, select heavy roof, and if the roof is slate or the like, select light roof, and then input the floor area, floor height, and the number of strength elements such as braces and surface materials in the X and Y directions.

[0042] The screen in Figure 3 is an example of an input screen, and the number of floors can only be 1 or 2, and is configured to be selected using radio buttons, just like the selection of a light roof or a heavy roof. Also, there is no place to input floor height on Figure 3, and this is done on a separate screen (not shown).

[0043] The load-bearing elements refer to elements such as braces and plywood that contribute to the building's resistance to earthquakes. In addition to the main load-bearing elements such as braces and plywood, the number of other load-bearing elements (for example, particle board, aluminum panels, etc.) can also be optionally input. The number of seismic control devices such as seismic control hardware can also be input separately. In this embodiment, an option is provided for inputting the number of seismic control devices (not shown).

[0044] Finally, the operator inputs the type and level of the seismic wave to be analyzed (not shown), and then presses the execute button, which causes the calculation results of the earthquake response analysis to be displayed on the display. This completes the information that the operator inputs in the earthquake response analysis system of this embodiment.

[0045] That is, the number of floors of the building to be analyzed, the selection of whether the roof is light or heavy, the floor area, the floor height, the number of resistance elements in the X direction, and the number of resistance elements in the Y direction, all input by the operator, are stored as data in the memory unit 11 of the terminal 1, and the calculation unit 12 extracts this data and calculates the earthquake response analysis.Then, the results are displayed on the display.In this embodiment, the results can be printed out.

[0046] In this embodiment, the system displays the analysis results at the bottom of the same screen as the input screen shown in Fig. 3. In the example of Fig. 3, a diagram visually showing the inter-story displacement in the X and Y directions and the inclination of the building, as well as the comparison results between the presence and absence of seismic control devices, are displayed.

[0047] FIG. 4(a) is a display screen of analysis results different from that of FIG. 3, and shows the result of whether or not sufficient seismic control performance is met, and the number of strength elements if it is insufficient (lower part of FIG. 4(a)). FIG. 4(b) is an example of the display in the lower part when seismic performance is insufficient. In this embodiment, the results are configured to be printable.

[0048] (internal processing) Next, it will be explained how the calculation results of the earthquake response analysis are derived from the input of the above numerical values ​​by the operator. Figures 5 to 11 are explanatory diagrams showing examples of input screens for internal processing.

[0049] First, in this embodiment, a building is modeled by replacing the building with a skewer-shaped model in which each floor is represented as a dumpling with its mass and the load-bearing elements are the skewers connecting them (see Figure 5). The entire building is modeled using the number of floors (number of dumplings), the mass of each floor (dumpling), and the number of load-bearing elements on each floor (skewers).

[0050] The mass of each floor is calculated from the floor area. Specifically, for example, it is calculated by multiplying the floor area by a specified mass per unit area. As an example, the mass per unit area shown below is used to calculate the mass for a heavy roof and a light roof. Note that the actual weight increases when the floor height is high, but this is within a range that does not affect the analysis, so it is fine to calculate it using the mass per unit area above. In other words, the numbers in the table below are set to be heavier with some leeway.

[0051] [Table 1]

[0052] Additionally, the input values ​​in Figure 6 are reflected in a form corresponding to the input by the operator in Figure 3. Then, the analysis results are calculated from these values ​​and preset values.

[0053] Furthermore, in the process of calculating the analysis results, the strength elements (skewer parts) are modeled. As an example of the method for modeling the skewer parts used in this embodiment, the bilinear model shown in Fig. 9 is used. Note that the modeling method is not limited to the bilinear model, and other methods such as various restoring force characteristic models can also be used.

[0054] The bilinear model of the skewer section is constructed using the first spring constant (K1), the break point load (Qy), the stiffness reduction rate (K2 / K1) or the second spring constant (K2), and the pre-plasticity (pre-Qy) damping characteristic value (damping constant C) of each load-bearing element. These values ​​are not the number of floors of the building being analyzed, the selection of a light or heavy roof, the floor area, the floor height, the number of load-bearing elements in the X direction, or the number of load-bearing elements in the Y direction, all input by the operator. Instead, the calculation unit 12 selects the predetermined K1, K2, Qy, and C from a database stored in the memory unit 11 based on the values ​​entered by the operator. In this calculation, the building mass is calculated by multiplying the mass per unit area by the floor area based on Table 1 to calculate the mass of each floor, and then multiplying this by 2 / 3. The reason for multiplying by 2 / 3 is to calculate the load borne by the framework (only the seismic elements) of the entire building. In this manner, in this embodiment, it is possible to determine the load borne by the earthquake-resistant elements out of the total mass of the building by multiplying by a predetermined numerical value.

[0055] Then, a predetermined seismic wave is applied to the building based on the type and level of seismic wave selected by the operator from a database of seismic waves, etc., stored in advance in the memory unit 11, and the load acting on the building and deformation of the building in the event of an earthquake are analyzed.

[0056] The types of seismic waves used include, for example, NS waves from the Kobe Marine Meteorological Observatory (JMA KOBE), EW waves from the Kumamoto earthquake (Mashiki main shock), simulated waves from the Building Center of Japan, artificial seismic waves, etc. Multiple seismic waves can also be used by multiplying them by an input level, for example, 80%.

[0057] Then, analysis is performed using the data of mass, seismic waves, etc. calculated and input as described above. For the analysis, a response numerical analysis method such as the acceleration method, Runge-Kutta method, or integral method is used to calculate displacement, velocity, acceleration, etc. due to the seismic waves. In this embodiment, the linear acceleration method is used as an example.

[0058] In analysis using the linear acceleration method, the vibration equation in Equation 1 below holds at time tn+1, so displacement, velocity, acceleration, etc. are calculated using the three basic equations in Equation 2 below. Here, y is displacement, one dot above y is velocity, and two dots above y are acceleration. m, c, and k are mass, damping coefficient, and spring constant. n+1 is the time Δt after n.

[0059] (Formula 1) TIFF0007780788000002.tif24129

[0060] (Formula 2) TIFF0007780788000003.tif51129

[0061] Then, from the above analysis, the analysis results of the building are calculated internally. Various analysis results are calculated, including the maximum response story displacement (mm) and maximum response story drift angle (rad), which are important in this embodiment. Figures 13 to 17 show examples of the calculated analysis results.

[0062] This analysis calculates a large amount of information such as load and deformation, and earthquake analysis software used by experts displays these results. However, the analysis system of this embodiment is configured to primarily display the results of a judgment as to whether or not the building has sufficient earthquake resistance (see Figures 3 and 4).

[0063] In this embodiment, whether or not a building is earthquake-resistant is determined by whether or not the inter-story deformation angle R when seismic waves are input exceeds 1 / 120 (maximum inter-story deformation angle (rad) in FIG. 16). Note that the value of 1 / 120 may be a value other than this. Furthermore, although the present embodiment assumes displays such as those in FIGS. 3 and 4, the configuration may also be such that the operator can display the analysis results shown inside FIGS. 13 to 17 as needed, and these may also be configured to be printable.

[0064] Furthermore, in the analysis system of this embodiment, if the story drift angle R does not satisfy the condition of R<1 / 120 and it is determined that the building does not have sufficient earthquake resistance, the number of missing strength-bearing elements is displayed. The number of missing strength-bearing elements is calculated as follows:

[0065] If it is determined that the building does not have sufficient earthquake resistance, the calculation unit 12 adds one by one to the number of X-direction and Y-direction strength elements input by the operator, and repeats the same analysis as above. If the number of strength elements is significantly small, a fixed number may be added and the analysis may be repeated. When the result shows that the inter-story deformation angle R when seismic waves are input is within 1 / 120, the difference between the number of X-direction and the number of Y-direction strength elements and the number originally input by the operator is displayed.

[0066] By doing this, the operator of the analysis system can see at a glance how many load-bearing elements are missing, making it easy to know what load-bearing elements need to be added to the actual building to provide sufficient earthquake resistance. The number of missing load-bearing elements, such as braces and surface panels, can also be displayed separately, or the operator can be configured to select a load-bearing element, such as a brace, and the number of missing load-bearing elements can be displayed. Since surface panels are often installed on perimeter walls and are therefore difficult to add, it is also possible to fix the load-bearing elements to be added to the braces in advance, and then display the number of missing braces.

[0067] As described above, the preferred embodiments of the present invention have been described with reference to the drawings, but various additions, modifications, and deletions can be made without departing from the spirit of the present invention.

[0068] (1) In the above-described embodiment, the fifth means is for inputting the number of braces or plywood panels in the X and Y directions, but it is also possible to input the number of other earthquake-resistant elements (for example, particle boards, aluminum panels, etc.) or the number of seismic control devices. Furthermore, it is also possible to select the type of seismic wave and the input level.

[0069] (2) In the above-described embodiment, the maximum inter-story displacement in the X and Y directions is shown at the bottom of the display, and the reduction rate is also shown in comparison with the case where seismic control devices are installed. However, the present invention is not limited to this. For example, it is also possible to show the maximum inter-story displacement and the maximum inter-story deformation angle, and to indicate whether the maximum inter-story deformation angle is at the target value (R<1 / 120).

[0070] (3) In the above-described embodiment, the analysis results are simply displayed, but if the analysis results show that the reduction rate is insufficient (NG), it is possible to recalculate and display comments such as how many braces should be added or how many places the surface material should be added.

[0071] In addition, if the strength is insufficient, the operator can select additional strength elements (e.g., braces, structural plywood), and the analysis can be repeated by adding strength elements one by one until the target value of the inter-story drift angle R<1 / 120 is achieved. Also, if the strength is significantly insufficient, elements can be added two at a time instead of one by one.

[0072] (4) Furthermore, in the above-described embodiment, an example is given in which a single terminal on which the analysis program is installed is used. However, the analysis program can also be used as a web application, and the operator accesses a server on which the web application is installed from his or her own terminal to perform the analysis. In this case, the device configuration is as shown in FIG. 18, and the operator's terminal 1 and server 2 are operated via the Internet 3. The program then runs on server 2, and the results are displayed on the display of the operator's terminal 1. Furthermore, when the analysis program itself is sold or otherwise provided, it can be provided by downloading or stored on a medium such as a CD. [Explanation of symbols]

[0073] 1 device 11 Storage section 12 Arithmetic section 13 Transmitter 14 Storage section 15 Display section 16 Control section 2 Server 21 Memory section 22 Arithmetic section 23 Transmitter 24 Memory section 25 Display section 26 Control section 3. Internet

Claims

1. A system for analyzing the seismic response of a wooden building, comprising: a first means for selecting and inputting whether the roof is a light roof or a heavy roof; a second means for inputting the floor area of ​​each floor; a third means for calculating a mass for each floor based on signals from the first and second means; A fourth means for inputting the number of strength-bearing elements such as braces and plywood; a fifth means for receiving a signal from the fourth means and calculating at least one of the initial stiffness, bending load, stiffness reduction rate, and damping constant of the wooden building; and sixth means for receiving signals from the third and fifth means and calculating maximum inter-story displacements in at least the X and Y directions. Earthquake response analysis system for wooden buildings.

2. a seventh means for receiving signals relating to the maximum inter-story displacements in the X and Y directions from the sixth means and calculating a maximum inter-story deformation angle; The earthquake response analysis system for a wooden building according to claim 1.

3. an eighth means for determining whether or not the maximum inter-story deformation angle calculated by the seventh means exceeds a predetermined deformation angle; The earthquake response analysis system for wooden buildings according to claim 2.

4. a ninth means for calculating the number of load-bearing elements that is insufficient to make the maximum inter-story deformation angle within the predetermined deformation angle when it is determined that the maximum inter-story deformation angle calculated by the eighth means exceeds the predetermined deformation angle; The earthquake response analysis system for wooden buildings according to claim 3.

5. The fourth means is capable of inputting the number of the load-bearing elements for each floor in the case of a wooden building having two or more floors. The earthquake response analysis system for a wooden building according to any one of claims 1 to 4.

6. In the case of a wooden building having two or more floors, the sixth means can calculate the maximum inter-story displacement in each of the X and Y directions for each floor. The earthquake response analysis system for a wooden building according to claim 5.

7. The fourth means further has a configuration for inputting the number of seismic control devices separately from the input of the number of load-bearing elements. The earthquake response analysis system for a wooden building according to any one of claims 1 to 6.

8. The fifth means receives a signal from the fourth means, and models the wooden building in a skewer-like manner, regarding the mass of each floor as a dumpling and the seismic elements of each floor as a skewer, thereby calculating at least one of the initial stiffness, the bending load, the stiffness reduction rate, and the damping constant. The earthquake response analysis system for a wooden building according to any one of claims 1 to 7.

9. The third means is a means for calculating the mass of each floor of a wooden building by multiplying the floor area of ​​each floor by a predetermined mass for each floor depending on whether the roof is heavy or light. The earthquake response analysis system for a wooden building according to any one of claims 1 to 8.

10. In the sixth means, the mass of each floor of the wooden building is calculated by multiplying the mass of each floor calculated in the third means by a predetermined coefficient of 1 or less. The earthquake response analysis system for a wooden building according to any one of claims 1 to 9.

11. Further provided is a ninth means for inputting the floor height of the building. The earthquake response analysis system for a wooden building according to any one of claims 1 to 10.

12. For wooden buildings with two or more floors, you can enter the floor height for each floor. The earthquake response analysis system for a wooden building according to claim 11.

13. A program for analyzing the seismic response of wooden buildings, a first means for selecting and inputting whether the roof is a light roof or a heavy roof; a second means for inputting the floor area of ​​each floor; a third means for calculating a mass for each floor based on signals from the first and second means; A fourth means for inputting the number of load-bearing elements such as braces and plywood; a fifth means for receiving a signal from the fourth means and calculating at least one of the initial stiffness, bending load, stiffness reduction rate, and damping constant of the wooden building; a sixth means for receiving signals from the third and fifth means and calculating maximum inter-story displacements in at least the X and Y directions; Earthquake response analysis program for wooden buildings.

14. a computer is caused to function as seventh means for receiving signals relating to the maximum inter-story displacements in the X and Y directions from the sixth means and calculating the maximum inter-story deformation angle; The earthquake response analysis program for a wooden building according to claim 13.

15. causing the computer to function as eighth means for determining whether or not the maximum inter-story deformation angle calculated by the seventh means exceeds a predetermined deformation angle; The earthquake response analysis program for a wooden building according to claim 14.

16. and causing the computer to function as a ninth means for calculating the number of load-bearing elements that are insufficient to make the maximum inter-story deformation angle within the predetermined deformation angle when it is determined that the maximum inter-story deformation angle calculated by the eighth means exceeds the predetermined deformation angle. The earthquake response analysis program for a wooden building according to claim 15.

17. The fourth means is capable of inputting the number of the load-bearing elements for each floor in the case of a wooden building having two or more floors. The earthquake response analysis program for a wooden building according to any one of claims 13 to 16.

18. In the case of a wooden building having two or more floors, the sixth means can calculate the maximum inter-story displacement in each of the X and Y directions for each floor.

18. The earthquake response analysis program for a wooden building according to claim 17.

19. The fourth means further has a configuration for inputting the number of seismic control devices separately from the input of the number of load-bearing elements.

19. The earthquake response analysis program for a wooden building according to any one of claims 13 to 18.

20. The fifth means receives a signal from the fourth means, and models the wooden building in a skewer-like manner by regarding the mass of each floor as a dumpling and the earthquake-resistant elements of each floor as a skewer, thereby causing a computer to calculate at least one of the initial stiffness, the bending load, the stiffness reduction rate, and the damping constant.

20. The earthquake response analysis program for a wooden building according to any one of claims 13 to 19.

21. The third means is a means for calculating the mass of each floor of a wooden building by multiplying the floor area of ​​each floor by a predetermined mass for each floor depending on whether the roof is heavy or light. The earthquake response analysis program for a wooden building according to any one of claims 13 to 20.

22. In the sixth means, the mass of each floor of the wooden building is calculated by multiplying the mass of each floor calculated in the third means by a predetermined coefficient of 1 or less. The earthquake response analysis program for a wooden building according to any one of claims 13 to 21.

23. The computer functions as a ninth means of inputting the building's floor height. The earthquake response analysis program for a wooden building according to any one of claims 13 to 22.

24. For wooden buildings with two or more floors, you can enter the floor height for each floor. The earthquake response analysis program for a wooden building according to claim 23.

25. A computer-readable recording medium on which the earthquake response analysis program for a wooden building according to any one of claims 13 to 24 is recorded.

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