結合深度學習與房屋街景圖像之機率式地震風險評估;Probabilistic earthquake hazard assessment combining deep learning and street view images of buildings

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题名:	結合深度學習與房屋街景圖像之機率式地震風險評估;Probabilistic earthquake hazard assessment combining deep learning and street view images of buildings
作者:	吳念穎;Wu, Nien-Ying
贡献者:	土木工程學系
关键词:	深度學習;開放式街景地圖;開放式地震工程模擬軟體;機率式評估法;Deep Learning;OpenStreetMap;OpenSees;Probabilistic Assessment Method
日期:	2024-07-23
上传时间:	2024-10-09 14:44:43 (UTC+8)
出版者:	國立中央大學
摘要:	台灣位於板塊交界處，地震頻繁發生，人民的生命財產安全受到危害，房屋的耐震能力面臨巨大挑戰。為應對地震所帶來的風險，本研究提出一結合深度學習與房屋街景圖像之機率式地震風險評估方法，針對地震高風險區域建築之耐震能力作進一步的分析與探討，減少地震所帶來的危害。以傳統方法進行建築物耐震分析，成本較高且相當費時，倘若要進行大範圍風險評估此法不可行。因此本研究嘗試透過深度學習獲取建築物高度，藉由地震工程模擬軟體建立數值模型，模擬結構之受震情形。本研究採用機率式建物損害耐震評估架構進行非線性動力歷時分析，損害判定準則參考 FEMA 技術報告之 Hazus 4.2-SP3 RC 結構損害等級，統計回歸成損害等級易損曲線後計算建築物損害機率，以此方法量化建築物受震時所造成的損害程度。最後本研究繪製花蓮縣之地震風險評估地圖，與 0403 花蓮大地震之實際災情比較與驗證該方法之可行性，期望可做為日後機率式地震風險評估之建立標準流程與範本。 ;Taiwan is located at the intersection of tectonic plates, resulting in frequent earthquakes that threaten the safety of people′s lives and property. The seismic resilience of buildings faces significant challenges. To address the risks posed by earthquakes, this study proposes a probabilistic seismic risk assessment method that combines deep learning with street view images of buildings. This method aims to further analyze and evaluate the seismic resilience of buildings in high-risk earthquake areas, thereby mitigating the damage caused by earthquakes.Traditional methods for seismic analysis of buildings are costly and time-consuming, making them impractical for large-scale risk assessments. Therefore, this study attempts to use deep learning to obtain building heights and employs seismic engineering simulation software to create numerical models that simulate the structural response to earthquakes.The study adopts a probabilistic seismic damage assessment framework to perform nonlinear dynamic time-history analysis. The damage assessment criteria refer to the Hazus 4.2-SP3 RC structure damage levels from the FEMA technical report. By statistically regressing the damage levels into fragility curves, the study calculates the probability of building damage. This method quantifies the extent of damage caused by earthquakes to buildings.Finally, this study maps the seismic risk assessment of Hualien County and compares it with the actual damage from the April 3 Hualien earthquake to verify the feasibility of the proposed method. It is hoped that this can serve as a standard procedure and template for probabilistic seismic risk assessment in the future.
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