预应力钢-混凝土组合梁的疲劳性能  

Fatigue behavior of prestressed composite steel concrete beams

作　　者：宗周红[1] 车惠民[2] 

机构地区：[1]1福州大学土木建筑工程学院,福建福州350002 [2]西南交通大学土木工程学院,四川成都610031

出　　处：《铁道学报》2000年第3期92-95,共4页Journal of the China Railway Society

基　　金：国家自然科学基金! (593381 30 );铁道部科技发展计划项目! (95G33)

摘　　要：分析和总结 75钢绞线和栓钉连接件的疲劳试验成果 ,建议相应的疲劳强度取值 ;进行了两片简支和两片连续预应力钢 -混凝土组合梁的疲劳试验 ,分析不同预应力大小和顺序、不同材料混凝土类型和强度的 类截面预应力组合梁疲劳性能 ,得出若干有价值的结论。This paper analyzes and summarizes the fatigue strength of the prestressed strands and the expression of studs. Two simply supported and two continuous beams are tested in this paper. The fatigue behavior of prestressed composite steel concrete beams with different values and sequence of prestressing, different type of concrete and strength class with class Ⅱ sections, are analyzed. Several valuable conclusions are obtained.

关 键 词：组合梁 预应力 疲劳 试验研究 桥梁 

分 类 号：U448.216[建筑科学—桥梁与隧道工程] U441.4[交通运输工程—道路与铁道工程]