摘要
通过7根配置600MPa级高强钢筋的无粘结部分预应力混凝土梁受弯试验,分析了试验梁的受力特征和裂缝发展规律,并利用ANSYS有限元软件对其挠度、开裂荷载、极限荷载和钢绞线应力增量进行模拟分析。研究结果表明:配置高强钢筋的无粘结部分预应力混凝土梁受力性能良好;非线性有限元模拟结果与试验结果吻合较好,该方法能够有效地模拟配置高强钢筋的无粘结部分预应力混凝土梁的受力过程。
According to flexural experiment of unbonded partially prestressed concrete beams with 600 MPa reinforcement,the mechanics characteristic and law of crack developing are analyzed. And using the finite element analysis software（ ANSYS）, the simulation analysis for deflection, cracking load, ultimate load and stress increment are carried out. The results show that the unbonded partially prestressed concrete beams with highstrength reinforcement behave well. The nonlinear finite element simulations agree well with the experimental results,which indicates that this method could simulate the loading process of unbonded partially prestressed concrete beams with high-strength non-prestressed reinforcement.
出处
《建筑科学》
CSCD
北大核心
2017年第3期33-38,共6页
Building Science
基金
河北省高等学校科学技术研究重点项目(ZD2010123)
河北省交通运输厅科技计划项目(Y-2011052)
河北省交通运输厅科技计划项目(Y-2012041)
河北省建设科学技术研究计划(2014-123)
关键词
高强钢筋
部分预应力混凝土梁
受力特征
有限元分析
high-strength reinforcement
partially prestressed concrete beam
mechanics characteristic
finite element analysis
