锈蚀钢盘混凝土压弯构件恢复力性能的试验研究与承载力的理论分析

【作者】 颜桂云；

【导师】 王泽军；

【作者基本信息】 西安建筑科技大学 ， 结构工程， 2001， 硕士

【摘要】 本文在已有研究成果的基础上，对锈蚀钢筋凝混土压弯构件的耐久性进行了分析、研究。研究工作主要包括：一、在低周反复荷载作用下锈蚀钢筋混凝土压弯构件恢复力性能的试验研究。讨论了钢筋锈蚀程度对锈蚀混凝土压弯构件承载力、刚度、延性、耗能能力等的影响，给出了锈蚀构件滞回曲线和骨架曲线。二、影响锈蚀钢筋凝混土压弯构件受力性能因素的研究。讨论了钢筋的锈蚀机理、混凝土的受损机理以及锈蚀钢筋与混凝土粘结性能退化的机理。三、锈蚀钢筋混凝土压弯构件承载力的理论分析和研究。根据分析研究结果，提出了锈蚀钢筋混凝土压弯构件斜截面抗剪承载力的计算表达式和正截面抗弯承载力的计算方法。更多还原

【Abstract】 Based on the existing results, the durability of corroded R.C. members withflexural and compressive axial loads is studied in this thesis. The researchmainly includes the following respects: Firstly, hysteretic characteristicsof corroded R.C. members with flexural and compressive axial loads are put toexperiment and analyzed under slowly applied lateral load reversals. Throughthe experiment the influence of corrosion on the bearing capacity, stiffness,ductility and energy dissipation of these corroded R.C. members are discussed.Hysteretic and skeleton curye for these corroded R.C members are obtained.Secondly, the influential factors for mechanic properties of these corrodedR.C. members are discussed. The corrosion mechanism of reinforcement, thedamage mechanism of concrete and the bond loss between the reinforcement andconcrete are studied. Thirdly, theoretical analysis of bearing capacity ofthese corroded R.C. members is conducted. According to the analysis, acalculating formula for the shearing strength and a calculating method forflexural strength of these corroded R.C. members are suggested.更多还原