基于ANSYS的碳纤维约束混凝土棱柱体热应力分析

Hot-Stress Analysis of Concrete Prism Confined by Carbon Fiber Sheets Based on ANSYS

碳纤维增强塑料(CFRP)加固修复混凝土结构技术在国内外迅速的发展起来,它有高强、轻质、耐腐蚀耐疲劳、施工便利、不增加构件尺寸等优点,因此,在混凝土加固工程中得到大量的应用。由于碳纤维与混凝土的线膨胀系数的不同,在温差的作用下,碳纤维加固混凝土结构中将产生温度应力。本文应用ANSYS软件分别对在降温温差30、40、50、60℃作用下的碳纤维加固混凝土棱柱体进行了温度应力分析。

The technology of CFRP （Carbon Fiber Reinforced Plastic） confining concrete structure has rapidly developed both at home and abroad, which was largely used in civil engineering for its unique properties, such as high strength-to-weight radio, good resistance to corrosion and fatigue, convenient for construction and no additional dimension. Because the temperature-swelling coefficient was different between CFRP and concrete, temperature stress was produced when the temperature changed in CFRP solidification of concrete due to temperature differences. The temperature stress were emulated and analyzed by using ANSYS on CFRP solidified concrete prism under temperature differences： 30, 40, 50, 60 ℃.