Stability Estimation Method for Masonry Wall

2 熊谷組名古屋支店 (〒460-8402 名古屋市中区栄4-3-26)3 東亜建設工業大阪支店 (〒550-0004 大阪市西区靱本町1-4-12) 生活に隣接した石積み擁壁の崩壊は，居住や通行中の人命に対する安全面だけでなく，前面の道路における交通機能を阻害する要因となる可能性が高い．本研究では，近年，落石や岩盤崩壊などのシミュレーションで使用実績が多い不連続変形法(DDA)を採用し，DDAが石積み擁壁の耐震性評価手法だけでなく，積み石の崩壊域の評価手法としての妥当性を有するかを検証するため，2001年芸予地震における石積み擁壁の崩壊シミュレーションを行った．また，DDAでは要素数が多くなると解が不安定になる問題が生じたため，解析モデルの簡略化の影響についても検討を行った．

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A Route-to/From-School Hazard Map for Stone Masonry Walls in Kure City Based on an Earthquake Scenario

Sakai¹,

Tao²,

Miyamoto³

et al. 2009

Nihon Kenchiku Gakkai Kozokei Ronbunshu

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We create a hazard map of Route-to/from-School for stone masonry walls in Kure city based on an earthquake scenario in order to indicate the danger zone for the public. The seismic stability of the stone masonry walls is evaluated using DDA (Discontinuous Deformation Analysis), which is a type of discrete element method and suits to solve the large displacements accompanying the discontinuous movements between blocks. First, we survey the detail of the stone masonry walls along the Route-to/from-School and examine the accuracy for simplifying the analytical model. Then, we estimate the seismic stability and possible dispersed areas of the stones from the collapsed walls based on an earthquake scenarios. Finally, we create a hazard map of Route-to/from-School for stone masonry walls in Kure city.

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Stability Estimation Method for Masonry Wall

Cited by 3 publications

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Experimental Study on Deformation Mechanism of Ashlar Masonry Walls During an Earthquake

Experimental Study on Deformation Mechanism of Ashlar Masonry Walls During an Earthquake

Collapse Simulation of Stone Masonry Walls During the 2001 Geiyo Earthquake Using Discontinuous Deformation Analysis

A Route-to/From-School Hazard Map for Stone Masonry Walls in Kure City Based on an Earthquake Scenario

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