Title:
変電所屋外鉄構の耐震性簡易評価方法
Document Type and Number:
Japanese Patent JP6542012
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a method for simply evaluating an earthquake resistance of a large number of existing outdoor steel structures in a substation, without performing an earthquake response analysis.SOLUTION: A relational expression between a beam attachment height H and a primary characteristic period T1 is determined in advance through an eigenvalue analysis for a detailed model of a reference steel structure of each voltage class. A stress analysis is performed through an earthquake response analysis to determine a relational expression for T1 between a maximum acceleration response value Ax1 determined from an acceleration response spectrum of an anticipated earthquake wave and a short-term allowable stress degree ratio σ/f of a member determined from a result of the stress analysis. These relational expressions are used to simply evaluate an earthquake resistance of the target outdoor steel structure belonging to a specific voltage class, in the steps of determining the primary characteristic period t1 of the outdoor steel structure from a beam attachment height h, using t1 to predict the maximum acceleration response value ax1 from the acceleration response spectrum of the anticipated earthquake wave, estimating σ/f on the basis of ax1, and determining the outdoor steel structure to be earthquake-proof on the basis of σ/f>1.SELECTED DRAWING: Figure 9
Inventors:
Takayuki Kobayashi
Atsushi Eto
Nakamoji
Fumi Odawara
Ishida Kouhiro
Shuichi Takagi
Atsushi Eto
Nakamoji
Fumi Odawara
Ishida Kouhiro
Shuichi Takagi
Application Number:
JP2015078944A
Publication Date:
July 10, 2019
Filing Date:
April 08, 2015
Export Citation:
Assignee:
TEPCO Holdings Co., Ltd.
Tomoe Corporation
Tomoe Corporation
International Classes:
G06F17/50; E04H5/04
Domestic Patent References:
| JP2000322467A | ||||
| JP2002194894A | ||||
| JP201180905A | ||||
| JP3106618U | ||||
| JP201065411A | ||||
| JP20098562A | ||||
| JP2005187124A |
Attorney, Agent or Firm:
Kumon enjoyment
Hisako Yasuko
Hisako Yasuko