【摘要】 根据刚架拱桥结构的受力特性和构件本身存在的缺陷,利用斜撑的ANSYS实体模型分析刚架拱桥斜撑的破坏机理,以弹模的降低来模拟斜撑湿接缝处混凝土强度的衰变.研究表明湿接缝处混凝土强度不足是斜撑破坏的主要原因,并对斜撑加固后的可靠性进行分析,预测了斜撑的剩余使用寿命.更多还原

【Abstract】 Based on the framed arch bridge mechanical behavior and its component structure defects,a solid model of batter brace by means of ANSYS program was established to simulate the reduction of the strength in the wet formed joint of the batter brace,resulting from the descent of the elastic modulus of the concrete.Based on its reliability analysis after reinforce in the framed arch bridge,the the residual service-life of bridge could be predicted.更多还原