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2022 Fiscal Year Final Research Report

Development on automatic damage judgement techniques for quick recover of disaster management center buildings using satellite information

Research Project

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Project/Area Number 20H00293
Research Category

Grant-in-Aid for Scientific Research (A)

Allocation TypeSingle-year Grants
Section一般
Review Section Medium-sized Section 25:Social systems engineering, safety engineering, disaster prevention engineering, and related fields
Research InstitutionNational Institute for Land and Infrastructure Management (2022)
Building Research Institute (2020-2021)

Principal Investigator

MUKAI TOMOHISA  国土技術政策総合研究所, 建築研究部, 室長 (30318208)

Co-Investigator(Kenkyū-buntansha) 衣笠 秀行  東京理科大学, 理工学部建築学科, 教授 (00224999)
倉田 成人  筑波技術大学, 産業技術学部, 教授 (00416869)
田嶋 一之  国立研究開発法人宇宙航空研究開発機構, 施設部, 主任研究開発員 (10866023)
Project Period (FY) 2020-04-01 – 2023-03-31
KeywordsGNSS / 高精度時刻 / 測位精度 / 被災判定技術 / 耐震レジリエンス性能
Outline of Final Research Achievements

As a result of this research, 1) Regarding the development of an automatic measurement device in which a high-precision time-synchronized accelerometer and a GNSS sensor are linked in the event of a disaster, the measurement accuracy of each accelerometer and GNSS sensor was verified, and when they were installed in a building. It confirmed that the system works properly. 2) Regarding the development of an algorithm for determining damage information from measurement data, a damage determination technology for a damaged RC five-story frame test specimen was proposed, and the method to determine damage was confirmed to work properly using the results of static nonlinear incremental analysis. 3) a measurement data collection system using the cloud was designed and partially implemented as a study for a scalable system that automatically collects damage assessment results for many buildings.

Free Research Field

建築物の損傷評価

Academic Significance and Societal Importance of the Research Achievements

本研究によって,建物の応答変位を直接計測するGNSSセンサの計測精度を検証し,それらを既存加速度センサー内に取り込み,実建物において計測できることを検証し,かつそれらの計測データの一元的な収集システムの開発を行ったものでこれまでに実施されたことのない研究として位置づけられる。これらが今後建物に実際に設置されることで,地震後の迅速な被災判定の実施の結果,災害後における防災拠点施設の効率的な災害対応に資することができる。また計測されたデータを用いて被災建物の損傷評価に結びつく検討方法を提示したことで,建物の振動計測から被災判定まで一連の流れを示したことに意義がある。

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Published: 2024-01-30  

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