FATIGUE OF REINFORCED CONCRETE BRIDGES WITH INFLUENCE OF DETERIORATION OF CONCRETE

摘要：

Fatigue is a process of permanent progressive changes in the structure of a materialexposed to cyclic loading. High stress ranges in these structures can cause crack propagation,consequently reduce stiffness and can lead to fatigue failure. Also, exposing the material toaggressive environment can result in material deterioration, which accelerates the decrease offatigue performance of the construction.The prediction of deflections, and thus serviceability, of concrete bridges subjected tocyclic loading can be calculated by using a fatigue damage function. This function expressesreduced structural stiffness by decreasing of the modulus of elasticity depending on thenumber of load cycles. In this paper, an application of this function is shown in an illustrativeexample of a small concrete bridge.

作者: J.S(y)korovaā M.Foglar P.(S)temberk

作者单位: Department of Concrete and Masonry Structures,Czech Technical University in Prague(CTU),Prague,Czech Republic

会议类型: 国际会议

会议名称: 1st International Conference on Microstructure Related Durability of Cementitious Composites(首届与水泥基复合材料耐久性相关的微观结构国际会议)

会议地点: 南京

会议语种:英文

页码: 825-832

在线出版日期: 2008-10-13（万方平台首次上网日期，不代表论文的发表时间）