摘要
水泥混凝土桥桥面铺装层的疲劳开裂是铺装层使用过程中所必须面临的结构问题。本研究采用应变控制的四点弯拉复合结构疲劳试验,对三种水泥混凝土桥桥面铺装复合结构的疲劳性能进行了试验研究,得出了铺装复合结构的S-N应变疲劳方程。研究结果表明:"环氧沥青混凝土+SMA13沥青混凝土"铺装结构有优异的抗疲劳性能,适宜用作水泥混凝土桥梁桥面铺装。
Fatigue cracking is the structural problems that must be faced in the process of the using of cement concrete bridge deck pavement. Through three kinds of cement concrete bridge pavement structure of double - composite beams by the strain - controlled fatigue test, the fatigue equations are obtained. The results show that the type of epoxy asphalt concrete ＋ SMA13 asphalt concrete pavement structure has good fatigue properties, which can be used for cement concrete bridge deck pavement.
出处
《石油沥青》
2010年第6期34-37,共4页
Petroleum Asphalt
关键词
水泥混凝土桥梁
复合结构
疲劳性能
应变控制
cement concrete bridge
composite structure
fatigue properties
strain controlled
