论文部分内容阅读
在普通碳纤维布约束素混凝土圆形截面柱侧向约束应力模型的基础上,推导出预应力碳纤维布约束素混凝土矩形截面柱的侧向约束应力公式,考虑到混凝土柱转角处容易形成应力集中,碳纤维布与混凝土接触的粘结力及由于材料性质不同引起的应力重分布等因素,引入相应的折减系数,使得加固体系侧向约束力由圆柱向矩形柱合理的过度,得出合理的预应力碳纤维布加固矩形柱侧向约束应力模型。
On the basis of the lateral restraint stress model of CFRP confined concrete circular cross-section column, the lateral restraint stress formula of prestressed CFRP constrained concrete rectangular cross-section column is deduced. Considering that the stress concentration is easy to form at the corner of concrete column, Carbon fiber cloth and concrete contact force due to the different nature of the material caused by the stress redistribution and other factors, the introduction of the corresponding reduction factor, making the lateral restraint reinforcement system from the column to the rectangular column reasonable over, come to a reasonable pre Stress Constraint Model of Rectangular Column Strengthened with Carbon Fiber Reinforced Polymer.