土木工程与管理学报2026，Vol.43Issue(4)：1-11,11.DOI:10.13579/j.cnki.2095-0985.2026.20250198
UHPC装配式内嵌耳式企口阀厅结构抗震性能分析
Study on Seismic Performance of UHPC Assembled Valve Hall Structure with Embedded Ear-type Groove
摘要
Abstract
To investigate the dynamic characteristics and seismic responses of the novel UHPC prefab-ricated valve hall structure with embedded mortise-and-tenon joints,a 1∶3 scaled model of typical structural components was designed and fabricated for bidirectional shake table tests and numerical simulations under varying seismic intensity levels.The results indicate that the UHPC prefabricated wall-embedded valve hall structure exhibited favorable operational performance during loading,with effective collaborative load-bearing behavior achieved between firewall panels and columns through embedded mortise-and-tenon connections.Both elastic and plastic drift angles remained within speci-fied code limits,while the displacement amplification in the direction of lower stiffness was more pro-nounced under bidirectional seismic input.Under 8-degree rare earthquake conditions,the structure experienced significant stiffness degradation and entered plastic damage state,accompanied by in-creased crack development.Notable cracking and damage were observed at wall panel corners and mid-height regions of concrete columns,though the maximum inter-story drift angle remained below code thresholds.The proposed embedded mortise-and-tenon UHPC prefabricated valve hall structure demonstrates satisfactory overall seismic performance for high-intensity seismic zones.Given the tensile-shear stress stateat the interlocking tenon-protrusions and column mortise-grooves,vertical cracks were frequently observed at connection interfaces during testing.It is recommended to enhance the horizontal reinforcement configuration in wall-end tenon protrusions to mitigate shear-induced cracking.关键词
阀厅结构/型钢混凝土支撑/低周往复试验/抗震性能Key words
valve hall structure/steel reinforced concrete support/low cycle reciprocation test/seis-mic performance分类
建筑与水利引用本文复制引用
闫勇,高湛,李建勤,赵李源..UHPC装配式内嵌耳式企口阀厅结构抗震性能分析[J].土木工程与管理学报,2026,43(4):1-11,11.基金项目
国家电网有限公司科技项目(5108-202218280A-2-317-XG) （5108-202218280A-2-317-XG）
