水力发电学报2026，Vol.45Issue(1)：109-120,12.DOI:10.11660/slfdxb.20260111
海上风电导管架灌浆段局部原尺寸试验及剪力键参数分析
Localized full-scale test and shear key parameter analysis of grouted connections in offshore wind turbine jacket foundations
摘要
Abstract
This study adopts a combined approach of full-scale local test and numerical simulations to clarify our understanding of the axial damage modes of grouted connections.A modified finite element model is used to examine the influence of shear key height and spacing on the overall mechanical performance and failure patterns of grouted connections,aimed to provide a basis for optimized designs.The results indicate that the axial ultimate bearing capacity manifests limited variation with the shear key spacing,but vertical displacement is more sensitive to it.A small spacing tends to induce localized inclined cracks,while a large one may lead to brittle damage.Shear key height significantly influences the load-bearing mechanism and stiffness of the connection structure;at its minimum,the bearing capacity is relatively low.Its variation imposes a considerable effect on damage distribution and damage modes,but little on primary damage angles,reducing the performance of the connection structure if it is excessively small or excessively large.With a comprehensive consideration of the strength,ductility,failure mode,stress distribution,and construction cost,we recommend the shear key spacings suggested by API and HSE,and the shear key height ranges by NORSOK and ISO.关键词
灌浆连接段/轴向承载力/破坏模式/剪力键间距/剪力键高度Key words
grouted connection/axial bearing capacity/damage mode/shear key spacing/shear key height分类
海洋科学引用本文复制引用
练继建,李昕禹,郭耀华,王海军,刘昱辉,崔浩,王金鸽..海上风电导管架灌浆段局部原尺寸试验及剪力键参数分析[J].水力发电学报,2026,45(1):109-120,12.基金项目
华能集团有限公司科技项目(HNKJ24-H83) （HNKJ24-H83）
