Effectiveness of strengthen method of cultural buildings in 2016 Myanmar earthquake and its application to urban disaster prevention

2019 Fiscal Year Final Research Report

• Project/Area Number: 17H04497
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Single-year Grants
• Section: 海外学術
• Research Field: Natural disaster / Disaster prevention science
• Research Institution: Hiroshima University
• Principal Investigator: Hibino Yo 広島大学, 工学研究科, 准教授 (50456703)
• Co-Investigator(Kenkyū-buntansha): 眞田 靖士 大阪大学, 工学研究科, 教授 (80334358) ; 三浦 弘之 広島大学, 工学研究科, 准教授 (30418678) ; 松本 幸大 豊橋技術科学大学, 工学(系)研究科(研究院), 准教授 (00435447)
• Project Period (FY): 2017-04-01 – 2020-03-31
• Keywords: 耐震性能 / 耐震補強 / 地盤構造 / 地震被害 / 強震動予測 / 組積造

Outline of Final Research Achievements

In this study, the effectiveness of seismic retrofitting method in historic buildings, structural performance evaluation of buildings in urban areas of Myanmar, and evaluation of soil structure of Myanmar are carried out. The periodic characteristics of masonry buildings in Myanmar and the effectiveness and application of reinforcement were evaluated. It is shown that brick walls can be an effective seismic element in buildings in Myanmar if they can be prevented from falling out of the plane. Furthermore, by comparing the strong motion characteristics and the damage data of temples, it is shown that the strong motion characteristics in Bagan city, the relationship between the earthquake intensity and the damage was evaluated. The soil characteristics in Yangon and Mandalay were proposed.

Free Research Field

建築構造，耐震工学

Academic Significance and Societal Importance of the Research Achievements

本研究で得られた知見は，ミャンマーを含むレンガ壁を建材に用いる諸外国の建物の地震被害の低減に大きく寄与するものである。本研究により，ミャンマーで多く見られる組積造建物において，レンガ壁の補強工法としての有効性が明らかになり，組積造建物やレンガ壁を建材に用いる諸外国の建物に対する耐震補強工法の実用化に繋がる。レンガ壁の構造被害を減少させることで，建物の安全性や耐久性，および継続使用性を向上させることにも寄与する。さらに，ミャンマーの地盤構造が明らかになり，ミャンマーにおける強震動予測や建物の被害推定に繋がることが期待される。