A Study On Seismic Damage Mitigation For A Glass Screen System Of Low-Rise Steel Frame Building Based On Earthquake Response Observations

2021 Fiscal Year Final Research Report

• Project/Area Number: 19K04703
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Review Section: Basic Section 23010:Building structures and materials-related
• Research Institution: National Institute for Land and Infrastructure Management
• Principal Investigator: WAKIYAMA Yoshio 国土技術政策総合研究所, 住宅研究部, 室長 (50339800)
• Co-Investigator(Kenkyū-buntansha): 清水 斉 広島工業大学, 工学部, 教授 (30709118) ; 渡壁 守正 広島工業大学, 環境学部, 教授 (40744743)
• Project Period (FY): 2019-04-01 – 2022-03-31
• Keywords: 大判ガラス / 低層鉄骨造建築物 / 振動特性 / 地震応答解析 / 強震観測 / 耐震対策

Outline of Final Research Achievements

Dynamic behavior of glass screen of low-rise steel frame building has been examined by earthquake response observations and simulation analysis. Strong-motion earthquake measurement was conducted at damaged a low-rise steel-frame building with glass screens to examine its vibration characteristics that could generate force on the glass screens. From the analysis and an earthquake observation done, it was confirmed that the glass screen at the corner of the building tends to be easily destroyed due to the influence of coupling with the torsional vibrations in addition to the large vibrations in out-of-plane direction.

Free Research Field

非構造部材

Academic Significance and Societal Importance of the Research Achievements

本研究の成果は、実際に被害を生じた建築物を対象とした振動特性の把握と詳細なモデル解析を通じて、地震時に構造体から大判ガラスに作用する実際的な外力・変形を踏まえた総合的な検討を行い、設計上の配慮事項を整理することで、未だ確立されていない同種建築物の被害低減の観点から社会的意義は大きいと考える。