建筑钢结构进展2025，Vol.27Issue(12)：51-61,11.DOI:10.13969/j.jzgjgjz.20240628001
翼缘卷边蜂窝开孔PEC梁抗震性能研究
Study on Seismic Performance of PEC Beams with Lipped Flanges and Honeycombed Openings
楼汉忠 1杨克家 2李杰 3蒋路 4陆天宇 1杨宇焜5
作者信息
- 1. 浙江理工大学 建筑工程学院,杭州 310018
- 2. 台州学院 建筑工程学院,浙江 台州 318000
- 3. 上海杉达学院 工程学院,上海 201259
- 4. 宝山钢铁股份有限公司,上海 200126
- 5. 宝山钢铁股份有限公司,上海 200126||上海结奕建筑咨询事务所,上海 202150
- 折叠
摘要
Abstract
The construction details were proposed to address the weaknesses in mechanical and construction performance of PEC beams by using lipped flanges and webs with honeycombed openings.Taking into account the influence of shear-span ratio and stirrup spacing,quasi-static tests were conducted on three PEC beams with varying shear-span ratios and spacings between stirrups.The failure characteristics and load-displacement curves of the specimens in different loading stages were observed,and the mechanical properties of specimens were analyzed based on the experimental data.The experimental results show that the castellated PEC beams with lipped flanges have good bearing capacity and ductility,and the failure modes are concrete cracking and crushing at the root and flange edge buckling and tearing.The shear-span ratio mainly affects the bearing capacity and stiffness degradation of the specimen,while the spacing between stirrups mainly affects the energy dissipation capacity.Both parameters have a significant impact on crack development.关键词
PEC梁/拟静力试验/蜂窝开孔/翼缘卷边/抗震性能/剪跨比/箍筋间距Key words
PEC beam/quasi-static test/honeycombed opening/lipped flange/seismic performance/shear-span ratio/spacing between stirrups分类
建筑与水利引用本文复制引用
楼汉忠,杨克家,李杰,蒋路,陆天宇,杨宇焜..翼缘卷边蜂窝开孔PEC梁抗震性能研究[J].建筑钢结构进展,2025,27(12):51-61,11.
