水力发电学报2025，Vol.44Issue(4)：50-58,9.DOI:10.11660/slfdxb.20250406
预应力预制闸墩接缝型式及抗震性能试验研究
Experimental study on joint types and seismic performance of prestressed precast piers
摘要
Abstract
Prestressed precast segmental piers have the advantages of fast construction and good mechanical performance.The joint types between segments and between segments and foundation have great influence on the seismic performance of the structure.This paper presents an experimental study on a new type of joints that we have designed for prestressed precast segment piers,focusing on the structure's seismic performance and the influence of design parameters.The results show that the connecting steel plates installed at the segment joints are very effective in preventing the joint from cracking under lateral load and ensuring the integrity of the pier column,while the energy dissipators with a negative Poisson's ratio installed at the segment-foundation joints are effective in enhancing energy consumption and the structure's bearing capacity.These findings are useful for engineering design of pier structures.关键词
预应力/预制闸墩/接缝形式/抗震性能/连接钢板/负泊松比耗能件Key words
prestress/precast pier/joint form/seismic performance/connecting steel plate/negative Poisson's ratio energy dissipator分类
水利科学引用本文复制引用
蔡小宁,温永昕,李庆斌,周亮,巩妮娜,杨佳乐,刘光昆..预应力预制闸墩接缝型式及抗震性能试验研究[J].水力发电学报,2025,44(4):50-58,9.基金项目
国家自然科学基金(51878315 （）
52101313) （）
连云港市科技局重点研发计划(CG2207) （CG2207）
