JP5002376B2 - Design simulation system, design simulation method, design simulation program, and recording medium - Google Patents

Description

  The present invention relates to a design simulation system, and more particularly to a design simulation system for determining an appropriate number and arrangement position of damping members to be installed in a building.

  In Japan, where earthquakes occur frequently, buildings are designed to have seismic strength according to their scale. Since the Great Hanshin Earthquake, earthquake resistance has been included in the standard for evaluating the value of ordinary houses. In particular, high-rise buildings are increasingly equipped with damping members in order to suppress seismic vibrations and improve comfortability, and the number and arrangement of damping members are appropriate depending on the scale or shape of the building. Designed to be In general, prior to construction, the number of vibration damping members and their arrangement positions are determined by performing structural analysis of a building by computer simulation at the design stage.

In addition, in Patent Document 1 as a conventional technique related to a vibration damping member, a structure is provided with a high damping function by appropriately installing a seismic element such as a brace through a high damping device in a column frame, A highly damped structure that reduces the shaking of the structure due to disturbances such as earthquakes and winds is disclosed.
Further, in Patent Document 2, the type of the vibration damping device corresponding to the information around the building is stored, and the type of the vibration damping device is selected and displayed based on the inputted information around the building. A vibration damping device determination device is disclosed.
Patent No. 513356 JP 2007-107206 A

  However, the conventional design method for incorporating damping members into a building is to perform an earthquake response analysis for each building, calculate the required amount of attenuation based on the results, and determine the number and location of damping members. It was decided. Therefore, there is a problem that the simulation requires a lot of time and cost when the number and types of buildings increase.

Further, in the prior art disclosed in Patent Document 1, the damping coefficient of the high damping device is set between the maximum value of the damping constant for the third-order vibration mode and the maximum value of the damping constant for the first-order vibration mode. Since it is set, it is necessary to calculate the third-order and first-order vibration modes for each building, and as a result, there is a problem that the types of high-damping devices increase.
Further, in the prior art disclosed in Patent Document 2, in order to select the type of the vibration damping device, it is necessary to accurately input information around the building. There is a possibility of selecting.

  The present invention has been made in view of such a problem, and a building having similar structural characteristics is previously decomposed by two elements to form a matrix, and a building located along the outline of the matrix is arranged. By selecting a specific representative building from the candidates as a candidate for a representative building, and performing a seismic response analysis on this representative building through simulation to calculate the required attenuation, a building other than the representative building is calculated. To provide a design simulation system and method that can omit the earthquake response analysis, reduce the simulation time and cost, and determine the number and location of the damping members with high accuracy. Objective.

  In order to solve this problem, the present invention provides a design simulation system for a building including a vibration damping member that absorbs vibrations, and the rigidity, weight, and proof strength of the building using an earthquake-resistant element are as follows. Calculated by the characteristic value calculating means for calculating the characteristic value, the necessary attenuation calculating means for calculating the required attenuation that satisfies the design target of the building when a predetermined seismic wave is given, and the required attenuation calculating means. The number of damping members calculating means for calculating the number of damping members required for the building based on the required amount of damping, and the number of damping members calculated by the number of damping devices calculating means An eccentricity for determining whether or not the eccentricity rate of the building is an appropriate value by the damping member arrangement position determining means for determining whether to arrange at the position, and the arrangement position determined by the damping member arrangement position determining means Rate determination means, and similar Characteristic values for a plurality of representative buildings selected in advance from a plurality of buildings having structural characteristics are calculated by the characteristic value calculation means, and necessary attenuation amounts are calculated by the required attenuation amount calculation means, Based on the calculated characteristic value and the required amount of damping, the number of damping members used in the building other than the representative building is calculated by the number of damping members calculation means, and the damping member arrangement position determining means The arrangement positions are respectively determined by the above.

  In order to install the damping member in the building, it is necessary to know in advance the necessary attenuation amount of the building. In order to calculate this required attenuation, a seismic response analysis must be performed by applying a predetermined seismic wave to the building. Therefore, basically it is necessary to perform an earthquake response analysis for each building. However, in the case of buildings with similar structural characteristics, it is known that there is no large error in the required attenuation with other buildings if the results of the seismic response analysis of the representative building are reflected. Yes. Therefore, in the present invention, a characteristic value and a required attenuation amount are calculated for each of a plurality of representative buildings selected in advance from a plurality of buildings having similar structural characteristics, and the calculated characteristic value and the required attenuation amount are calculated. Based on the above, the number of damping members used for the building other than the representative building is calculated, and the arrangement position is determined respectively. Thereby, it is possible to omit the seismic response analysis for buildings other than the representative building, and it is possible to reduce the simulation time and cost, and to determine the number and arrangement positions of the damping members with high accuracy. .

Claim 2 is a design simulation method for a building including a vibration damping member that absorbs vibration, and the characteristic value calculating means calculates characteristic values related to the rigidity, weight, and proof strength of the building using the earthquake-resistant element. steps and, should the attenuation calculating means comprises the steps of calculating the required amount of attenuation to satisfy the design goals該建creation when given a predetermined seismic vibration damping member number calculating means, the required attenuation calculating means for A step of calculating the number of damping members required for the building based on the required damping amount calculated by the step, and a damping member arrangement position determining means comprising the number of damping members calculated by the damping member number calculating means. The step of determining where the member is to be arranged in the building, and the eccentricity rate determining means has an appropriate value for the eccentricity of the building by the arrangement position determined by the damping member arrangement position determining means. determines whether or not the Comprising a step, the respectively calculated and by the characteristic value calculating means a characteristic value for the preselected plurality of representative building from a plurality of buildings having similar structural characteristics, by the required attenuation calculating means Calculate the required damping amount, respectively, calculate the number of damping members to be used for the building other than the representative building by the damping member number calculating means based on the calculated characteristic value and the required damping amount, The vibration damping member arrangement position determining means determines the arrangement position, respectively.
The present invention has the same effect as that of the first aspect.

A third aspect of the present invention is a design simulation program for causing a computer to execute the design simulation method according to the second aspect .
According to the present invention, by programming the design simulation method of the present invention according to an OS that can be controlled by a computer, any computer equipped with the OS can be controlled by the same processing method.
A fourth aspect is characterized in that the design simulation program according to the third aspect is recorded in a computer-readable format.
According to the present invention, a design simulation program is recorded on a recording medium in a computer-readable format, so that the program can be operated anywhere by carrying the recording medium.

According to the present invention, a characteristic value and a required attenuation amount are calculated for each of a plurality of representative buildings pre-selected from a plurality of buildings having similar structural characteristics, and the calculated characteristic value and required attenuation are calculated. Based on the quantity, the number of damping members used for buildings other than the representative building is calculated, and the arrangement position is determined respectively. Therefore, it is possible to omit seismic response analysis for buildings other than the representative building. As a result, simulation time and cost can be reduced, and the number and arrangement positions of the damping members can be accurately determined.
Further, if the necessary damping coefficient Creq of the entire building is obtained, the number n of necessary damping members can be obtained by dividing by the damping coefficient C of one damping member. The necessary damping coefficient Creq and the number n of damping devices can be easily obtained from the damping constant h.

Further, since n is an even number and the same number of damping members are arranged in both the X and Y directions, the eccentricity can be suppressed as much as possible when the damping members are arranged in the building.
In addition, the target building is decomposed into two elements to form a matrix, and the buildings located along the outline of this matrix are selected as representative building candidates, so the seismic response of the target building inside the matrix Analysis can be omitted.
Further, by programming the design simulation method of the present invention in accordance with an OS that can be controlled by a computer, any computer equipped with the OS can be controlled by the same processing method.
Further, by recording the design simulation program on a recording medium in a computer-readable format, the program can be operated anywhere by carrying the recording medium.

Hereinafter, the present invention will be described in detail with reference to embodiments shown in the drawings. However, the components, types, combinations, shapes, relative arrangements, and the like described in this embodiment are merely illustrative examples and not intended to limit the scope of the present invention only unless otherwise specified. .
FIG. 1 is a functional block diagram of a design simulation system 100 of the present invention. This design simulation system 100 is a building design simulation apparatus provided with a vibration damping device that absorbs vibrations of a building, and uses the seismic element 1 such as a frame, a panel, a unit, etc. Characteristic value calculating means 2 for calculating the characteristic value related to the proof stress, necessary attenuation calculating means 4 for calculating the required attenuation h that satisfies the design target of the building when given seismic wave 3 is provided, and calculating the required attenuation The number of damping members calculating means 6 for calculating the number n of damping members necessary for the building based on the required amount of damping h calculated by the means 4, and the number n of damping members calculated by the number of damping members calculating means 6 The eccentricity of the building becomes an appropriate value by the damping member arrangement position determining means 7 for determining where the vibration member is arranged in the building, and the arrangement position determined by the damping member arrangement position determining means 7. Whether or not And it is configured to include the eccentricity determination means 8 for constant, the. The damping member arrangement position determining means 7 is configured to re-arrange the damping members when the eccentricity rate determining means 8 receives feedback and the eccentricity is not an appropriate value.
Then, the characteristic value is calculated by the characteristic value calculating means 2 for a plurality of representative buildings selected in advance from a plurality of buildings having similar structural characteristics. Further, the necessary attenuation amount is calculated by the required attenuation amount calculating means 4, and based on the calculated characteristic value and the required attenuation amount, the vibration damping device number calculating means 6 uses the vibration control to be used for a building other than the representative building. The number of members is calculated, and the arrangement positions are determined by the damping member arrangement position determining means 7 respectively. In the present embodiment, each unit is configured by hardware. However, each unit may be configured by software by an information processing apparatus such as a computer, and each function may be executed by a program procedure.

  That is, in order to install the vibration damping member in the building, it is necessary to know in advance the necessary attenuation h of the building. In order to calculate this required attenuation amount h, a predetermined seismic wave 3 must be given to the building and an earthquake response analysis must be performed. Therefore, basically it is necessary to perform an earthquake response analysis for each building. However, in the case of buildings with similar structural characteristics, it is known that if the result of the seismic response analysis of the representative building is reflected, there will be no large error in the required amount of attenuation h with other buildings. ing. Therefore, in the present embodiment, the characteristic value and the required attenuation are calculated for each of a plurality of representative buildings selected in advance from a plurality of buildings having similar structural characteristics, and the calculated characteristic value and the required attenuation are calculated. Based on the quantity, the number n of damping members used for the building other than the representative building is calculated, and the arrangement position is determined respectively. Thereby, it is possible to omit the seismic response analysis for buildings other than the representative building, and it is possible to reduce the simulation time and cost, and to determine the number and arrangement positions of the damping members with high accuracy. .

FIG. 2 is a diagram of a matrix 50 showing an example of selecting a representative building. For example, assuming that a plurality of buildings having similar structural characteristics are two-story, the vertical axis represents the weight W1 (屯: t) of the first floor, the horizontal axis represents the weight W2 (t) of the second floor, Assume that each building is distributed as indicated by a cross. For example, the building a has a weight of the first floor of 5t and a weight of the second floor of 5t, and it can be seen that the building a is a relatively small two-story building. In addition, it can be seen that the building c has a weight of the first floor of 27 t and a weight of the second floor of 5 t, the building area of the first floor is large, and the building area of the second floor is small. In addition, the building e has a relatively large total of two floors, with the first floor having a weight of 35 t and the second floor having a weight of 35 t. By plotting the weights of the first- and second-floor buildings of all the buildings having similar structural characteristics on the matrix 50, a distribution as shown in the figure can be obtained. Then, the buildings a to f located on the outer shell 11 of the matrix 50 are selected as representative building candidates, and the representative building is selected from the candidates (actually, 20 buildings are selected from among 1000 buildings). To do). In addition, although the weight of the 1st floor and the 2nd floor was chosen as an element which comprises the matrix 50, it is not restricted to this, You may comprise a matrix by making the size of a frontage and the number of rows of doors into an element.
That is, in this embodiment, a representative building is selected in order to omit the number of times of earthquake response analysis. As one of the methods, all the buildings (target buildings) having similar structural characteristics are decomposed into two elements to form the matrix 50, and the buildings a to be positioned along the outer shell 11 of the matrix 50. Let f be a candidate for a representative building. Therefore, the buildings distributed inside the outer shell of the matrix 50 are always included in any of the representative buildings a to f. Thereby, the earthquake response analysis of the target building in the matrix 50 can be omitted.

FIG. 3 is a diagram for explaining a method for calculating a relational expression between the natural period T and the equivalent attenuation constant h. FIG. 3A is a graph plotting the relationship between the attenuation constant h in the digit direction (X direction) and the natural period. The vertical axis represents the attenuation constant h, and the horizontal axis represents the natural period T. In this figure, the buildings from a to f are plotted. Then, when the straight line 51 is drawn so as to include each plot, it is assumed that the approximate expression of the straight line is h = 0.4T−0.144. Here, for example, when the required attenuation amount hreq of the building at point a is obtained, assuming that the perpendicular drawn from point a intersects with the straight line 51, the attenuation constant h at point P is about 0.03. Therefore, the attenuation constant h of the building a when originally plotted is about 0.015, but the attenuation constant obtained by the method of the present invention is doubled to 0.03, and this value is the required attenuation of the building a. It becomes a constant hreq. Thus, the required attenuation constant hreq obtained is always larger than the attenuation constant h required by the building a. As a result, the optimum necessary damping constant hreq can be obtained by a simple method. The same applies to other buildings.
FIG. 3B is a diagram in which the relationship between the attenuation constant h in the wife direction (Y direction) and the natural period is plotted. Of course, the slope of the straight line 52 is different, but the concept is basically the same as in FIG.

FIG. 4 is a flowchart for explaining the operation of the design simulation system 100 of the present invention. In addition, this flowchart is a flowchart which calculates | requires the required attenuation amount h of the representative building demonstrated in embodiment of FIG. A description will be given with reference to FIG. First, a seismic element 1 such as a frame, a panel, or a unit is determined (S1). These seismic elements 1 are elements that are inevitably determined when a building plan is determined. Next, the characteristic value calculation means 2 calculates the characteristic values relating to the rigidity, weight, and proof strength of the building using the seismic element 1 determined in step S1 (S2). Here, in order to limit the calculated characteristic value, step S2 is repeated so that the natural period T is not more than a predetermined value (for example, 0.4 seconds) (S3). When the characteristic value is calculated so that the natural period T becomes a predetermined value in step S3 (YES in S3), the required attenuation amount h (attenuation constant) that satisfies the design target of the building when the predetermined seismic wave 3 is given. ) Is calculated (S4). Next, the number n of damping members necessary for the building is calculated based on the required attenuation h calculated by the required attenuation calculation means 4 (S5). Here, as typical characteristics of a building, there are rigidity, mass, and yield strength. When the rigidity is K and the mass is M, ω = (K / M) ^1/2 can be expressed. Further, when the attenuation constant calculated by the required attenuation calculation means 4 is h, the required attenuation coefficient Creq is obtained by Creq = 2h / ω · K. Therefore, when the necessary damping coefficient Creq of the entire building is obtained, the necessary number n of damping members is obtained by dividing by one damping coefficient C of the damping member. Thereby, the required damping coefficient Creq and the number n of damping devices can be easily obtained from the damping constant h obtained by simulation of the representative building.

  Next, when the number n of damping members is determined, damping members are arranged in the representative building (S6). At that time, the number n of vibration damping members is an even number, and the same number is arranged in both the X and Y directions. That is, the floor plane shape of the building is generally rectangular. Therefore, if the number n of damping members is obtained, the number is preferably an even number in order to arrange the damping members in a balanced manner. Here, the position where the damping member is arranged must be arranged so that the eccentricity of the representative building is minimized. Therefore, it is checked whether the eccentricity is 5% or less, for example (S7), and if it is not 5% or less (NO in S7), the process returns to step S6 and redoes the arrangement. That is, in order to reduce the eccentricity of the building, it is important to make the vibration damping function work in a balanced manner. Therefore, it is preferable to arrange the same number of damping members in the X and Y directions in terms of coordinates. Thereby, when the damping member is arranged in the building, the eccentricity can be suppressed as much as possible.

FIG. 5 is a flowchart for explaining the operation of determining the number n and the arrangement of damping members of other buildings having similar structural characteristics based on the required attenuation amount h calculated by the representative building. By calculating Creq = 2h / ω · K based on the required damping amount h calculated in steps S1 to S4 in FIG. 3 and dividing by the damping coefficient C of one damping member, the number n of necessary damping members is obtained. Calculate (S10). Next, when the number n of damping members is determined, damping members are arranged in the representative building (S11). At that time, the number n of vibration damping members is an even number, and the same number is arranged in both the X and Y directions. That is, the floor plane shape of the building is generally rectangular. Therefore, if the number n of damping members is obtained, the number is preferably an even number in order to arrange the damping members in a balanced manner. Here, the position where the damping member is arranged must be arranged so that the eccentricity of the representative building is minimized. Therefore, it is checked whether the eccentricity is 5% or less, for example (S12), and if it is not 5% or less (NO in S12), the process returns to step S11 and redoes the arrangement.
As described above, according to the present embodiment, steps S1 to S4 in FIG. 3 can be omitted, and the number n and the arrangement of the damping devices can be determined.

It is a functional block diagram of the design simulation system 100 of this invention. It is a figure of the matrix 50 which shows an example which selects a representative building. It is a figure explaining the method of calculating the relational expression of the natural period T and the equivalent attenuation constant h. It is a flowchart explaining operation | movement of the design simulation system 100 of this invention. It is a flowchart explaining the operation | movement which determines the number n and arrangement | positioning of the damping member of the other building which has a similar structural characteristic based on the required attenuation amount h calculated by the typical building.

Explanation of symbols

  1 Seismic element 2 Characteristic value calculation means 3 Seismic wave 4 Required attenuation calculation means 5 Damping member performance 6 Damping member number calculation means 7 Damping device arrangement position determination means 8 Eccentricity determination means 50 Matrix, 100 Design simulation system

Claims (4)

A design simulation system for a building including a vibration damping member that absorbs vibration,
Characteristic value calculating means for calculating characteristic values related to the rigidity, weight, and proof strength of a building using seismic elements;
A necessary attenuation amount calculating means for calculating a necessary attenuation amount that satisfies a design target of the building when a predetermined seismic wave is given;
A damping member number calculating means for calculating the number of damping members required for the building based on the required damping amount calculated by the required damping amount calculating means;
Damping member arrangement position determining means for deciding in which position of the building the number of damping members calculated by the number of damping member calculation means is arranged;
An eccentricity determination means for determining whether the eccentricity of the building is an appropriate value based on the arrangement position determined by the vibration damping member arrangement position determination means,
Characteristic values for a plurality of representative buildings selected in advance from a plurality of buildings having similar structural characteristics are calculated by the characteristic value calculating means, and the required attenuation amounts are calculated by the required attenuation calculating means. The number of damping members to be used for the building other than the representative building is calculated by the number of damping member calculation means based on the calculated characteristic value and the required attenuation amount, and the damping member arrangement position is calculated. A design simulation system characterized in that an arrangement position is determined by a determination means. A design simulation method for a building including a vibration damping member that absorbs vibration,
A step of calculating a characteristic value relating to rigidity, weight, and proof strength of the building using the earthquake-resistant element;
A step of calculating a required attenuation amount satisfying a design target of the building when the required attenuation amount calculation means gives a predetermined seismic wave;
Damping member number calculating means, the steps of calculating the damping member required number該建creation based on the required attenuation are calculated by the required attenuation calculating means,
Vibration damping member arrangement position determining means, determining whether to place a number of damping members, which are calculated by the damping member number calculating means which position the該建creation,
The eccentricity determining means comprises a step of determining whether the eccentricity of the building is an appropriate value based on the arrangement position determined by the vibration damping member arrangement position determining means,
Characteristic values for a plurality of representative buildings selected in advance from a plurality of buildings having similar structural characteristics are calculated by the characteristic value calculating means, and the required attenuation amounts are calculated by the required attenuation calculating means. The number of damping members to be used for the building other than the representative building is calculated by the number of damping member calculation means based on the calculated characteristic value and the required attenuation amount, and the damping member arrangement position is calculated. A design simulation method characterized in that an arrangement position is determined by a determination means. A design simulation program for causing a computer to execute the design simulation method according to claim 2 . A recording medium in which the design simulation program according to claim 3 is recorded in a computer-readable format.

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