摘要
采用CFRP加固负载构件不会产生严重的应力集中以及残余应力,对负载下加固的钢板构件进行轴心受拉模拟计算,可为实际工程中的加固问题提供理论依据。文章针对CFRP加固轴心受拉钢板,采用ABAQUS软件建立了负载下加固钢板轴心拉伸构件的有限元模型,对加固钢板的承载性能进行了分析。结果表明:对于轴心受拉钢板,CFRP加固提高屈服荷载、极限荷载分别约为15%、16%;负载构件的极限承载力随着负载百分率的增加而逐渐下降;承载力随着CFRP加固层数的增加逐渐上升,加固到二层时CFRP布发挥利用率最大,加固到三层时承载力增幅呈现下降趋势;随着CFRP布长度的增加,承载力也随之提高。
It will not produce serious stress concentration and residual stress by using CFRP to reinforce the load component. The simulation calculation of the axial tension of the steel plate members under the load can provide the theoretical basis for the reinforcement problem in the actual project. In this paper, the finite element model of the axial tensile member of the reinforced steel plate under is established by using the software of ABAQUS to reinforce the bearing steel plate of the axle center, and the bearing capacity of the reinforced steel plate is analyzed. The results show that for the axially drawn steel plate, the yield load is about 15% and the ultimate load is about 16%. The uhimate bearing capacity of the load component gradually decreases with the increase of the load percentage, and the bearing capacity increases gradually with the increase of the number of CFRP reinforcement layers. The utilization ratio of CFRP cloth is maximum when the two layers are strengthened, and it is strengthened to the three storeys. When the CFRP cloth length increases, the bearing capacity will also increase.
作者
孙亚楠
郭兵
Sun Yanan;Guo Bing(School of Civil Engineering,Shandong Jianzhu University,Jinan 250101,China)
出处
《山东建筑大学学报》
2018年第4期51-55,共5页
Journal of Shandong Jianzhu University
关键词
钢结构加固
CFRP
轴心受拉
负载
有限元
steel structure reinforcement
CFRP
axial tension
load
finite element
