Title:
構造物の固有周期推定方法、構造物の耐震性判定方法、構造物の固有周期推定システム及び構造物の耐震性判定システム
Document Type and Number:
Japanese Patent JP6944898
Kind Code:
B2
Abstract:
To provide an earthquake resistance determination method of a structure and an earthquake resistance determination system of the structure capable of determining the earthquake resistance considering the cumulative damage of the structure after an earthquake motion.SOLUTION: A natural period estimation method of a structure of the present invention includes: calculating amplitude data for each frequency from acceleration data of the structure undergoing an earthquake motion (S310); when calculating the modified spectral ratio G(ω) on the uppermost stage for the lowermost stage of the structure from amplitude data, calculating the modified spectral ratio G(ω) by adding the value based on the average value of a power spectrum to a denominator (S320); selecting a natural frequency having the highest amplification factor from the modified spectral ratio G(ω) (S330); and calculating a primary natural period from the natural frequency (S370).SELECTED DRAWING: Figure 7
Inventors:
Narita Shuei
Mitoshi Yasui
Takeshi Yamamoto
Hiroyuki Kosaka
Mitoshi Yasui
Takeshi Yamamoto
Hiroyuki Kosaka
Application Number:
JP2018047942A
Publication Date:
October 06, 2021
Filing Date:
March 15, 2018
Export Citation:
Assignee:
Toda Construction Co., Ltd.
International Classes:
G01M7/02; G01M99/00
Domestic Patent References:
| JP2017227507A | ||||
| JP2017198610A | ||||
| JP2003344213A | ||||
| JP9105665A |
Attorney, Agent or Firm:
Yukio Fuse
Mitsue Obuchi
Mitsue Obuchi