Research Experiences for Undergraduates (REU), NHERI 2024: Contribution in Study of Soil-Steel Pipe Piles In-Ground Hinge Performance

My project focuses on the structural behavior of steel pipe piles under different soil conditions, emphasizing the evaluation of the in-ground plastic hinge performance. The study uses finite element simulations to analyze how strain impacts rotational capacity across six distinct soil types, aiming to propose more reliable metrics for evaluating pile performance, especially in seismic regions. The data generated from this research can be reused to inform and refine design practices for engineers working on similar projects, particularly in the context of seismic infrastructure. The primary audience for this research includes civil and structural engineers, researchers in geotechnical engineering, and professionals involved in infrastructure design and earthquake resilience.

本研究聚焦不同土质条件下钢管桩（steel pipe piles）的结构受力特性，重点评估埋地塑性铰（plastic hinge）的工作性能。本研究采用有限元模拟（finite element simulation）方法，分析六种典型土质中应变对塑性铰转动容量的影响，旨在提出更可靠的桩基础性能评价指标，尤其针对地震区工程。本研究生成的数据集可复用，可为从事同类工程（尤其是抗震基础设施工程）的工程师提供设计参考并优化设计流程。本研究的主要受众包括土木与结构工程师、岩土工程领域研究者，以及从事基础设施设计与地震韧性（earthquake resilience）相关工作的专业人员。