摘要
无黏结部分预应力开洞板在荷载作用下将产生应力集中,导致裂缝急剧开展,其承载能力极限状态下的受力性能研究是结构工程界积极探索的问题。基于非线性有限元ANSYS软件,建立了无黏结开洞板的三维分析模型,模拟了其在均布荷载作用下加载直到破坏的全过程,分析其裂缝的分布情况,并将计算结果与试验结果进行对比分析。
Unbonded partially prestressed concrete（PPC）slabs with a hole produce stress concentration under loads,which lead crack develop-ment sharply.Researches about slabs in ultimate limited state are issues that the Structural Engineering academia are exploring.This passage founds three-dimensional models,and imitates the loading until destructive process of the slabs under surface load on ANSYS,and analyzes damaging mechanism and opening performance,analyses the fracture distributions and compares with the experimental facts.
出处
《混凝土》
CAS
CSCD
北大核心
2010年第4期116-118,共3页
Concrete
基金
广西自然科学基金项目(桂科自0833255)
广西建筑工程检测与试验重点实验室基金项目(桂科能07109005-16)
关键词
无黏结预应力
开洞板
裂缝
非线性有限元
对比分析
unbonded partially prestressed
slabs with hole
cracks
nonlinear finite analysis
comparison and analysis
