三层钢筋叠合板受弯性能试验与数值模拟
EXPERIMENTAL AND NUMERICAL STUDY ON FLEXURAL BEHAVIOR OF THREE-LAYER REINFORCED COMPOSITE PLATES
孔繁哲 1郁有升 1陈述刚2
作者信息
- 1. 青岛理工大学土木工程学院,山东青岛 266033
- 2. 中海发展胶东公司,山东威海 264200
- 折叠
摘要
为研究叠合层厚度以及中间层钢筋对3层钢筋叠合板受弯性能的影响,基于实际工程项目,利用有限元软件ABAQUS进行数值模拟,设计了2组共6个有限元模型,并对模型的承载力和跨中挠度进行了分析.研究结果表明,3层钢筋叠合板试件承载力与叠合层厚度呈正相关,叠合层对试件刚度的影响在第3阶段前期达到最大;中间层钢筋对叠合板的承载力提升约20%～25%,同时使试件在刚度衰退过程中出现明显过渡阶段.相关规律可为3层钢筋叠合板研究提供参考.
Abstract
In order to study the influence of the thickness of the composite layer and the middle layer of steel bars on the flexural performance of three-layer reinforced composite slabs,the finite element software ABAQUS is used to conduct numerical modeling based on the actual engineering project.Two groups of six finite element models are designed,and the bearing capacity and mid-span deflection of the models are compared and analyzed.The results show that the bearing capacity of three-layer reinforced composite slabs is positively correlated with the thickness of the composite layer,and the influence of the composite layer on the stiffness of the specimen reaches the maximum in the early stage of the third stage;the bearing capacity of the composite slabs is increased by about 20%～25%by the middle layer of steel bars,and the specimen appears an obvious transition stage in the stiffness decline process.The relevant laws may provide the reference for the research of three-layer reinforced composite slabs.
关键词
3层钢筋叠合板/叠合层厚度/静力加载试验/非线性有限元分析/受弯性能Key words
laminated panels with three-layer rebar/the thickness of laminated layers/static loading test/nonlin-ear finite element analysis/flexural performance引用本文复制引用
出版年
2024
NETL
NSTL
万方数据