| Citation: |
WANG Xiao-wei, QIAN Jin, YE Ai-jun, WANG Jing-cheng, YANG Guang-yi. SIMPLIFIED SEISMIC DEMAND PREDICTION METHOD FOR EXTENDED PILE-SHAFTS IN COHESIONLESS SOILS[J]. Engineering Mechanics, 2024, 41(12): 150-157. DOI: 10.6052/j.issn.1000-4750.2022.10.0850
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The pile-shaft is a substructure widely used in bridge engineering. Under earthquake, the pile may yield if the capacity protection design principle is not well followed. Due to the complex soil-pile interaction in modeling and analysis, it is still difficult to predict the seismic demand of piles based on the yielding moments of piers. Therefore a coupled soil-pile-structure model are adopted to investigate the ductility seismic design method of pile-shafts with a focus on the simplified seismic demand prediction method. Investigations are conducted on the bending moment distribution under different earthquake intensities to determine pile-shaft demand parameters, and extensive parametric analyses are performed to understand the mathematical relationship between pile-shaft demand parameters and soil/structural sensitive parameters. A simplified seismic demand prediction method is proposed.
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朱承坚. 软土地基桥梁桩基础设计地震力简化计算方法. 工程建设与设计. 2025(03): 104-106 .
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