目录第4章虎门大桥正交异性钢桥面板疲劳问题研究.................................................................................24.1绪论.......................................................................................................................................................24.1.1正交异性钢桥面板的发展概况................................................................................................24.1.2正交异性钢桥面板的疲劳细节................................................................................................94.2虎门大桥疲劳裂纹现状及成因.........................................................................................................184.2.1虎门大桥疲劳裂纹现状..........................................................................................................184.2.2虎门大桥疲劳裂纹的成因分析..............................................................................................224.3正交异性钢桥面板局部应力分析.....................................................................................................284.3.1有限元分析模型......................................................................................................................284.3.2单轮荷载作用下桥面板应力分布..........................................................................................304.3.3跨中加载时横隔板处应力分析..............................................................................................334.3.4轮压荷载接触面积的影响分析..............................................................................................334.3.5双轴作用下桥面板应力分布.................................................................................................344.3.6结论..........................................................................................................................................354.4正交异性钢桥面疲劳裂纹加固方法研究.........................................................................................364.4.1桥面疲劳裂缝的位置和形式..................................................................................................364.4.2桥面疲劳裂纹加固的方法.......................................................................................................374.4.3实际加固案例..........................................................................................................................394.4.4结论..........................................................................................................................................434.5正交异性钢桥面板构造细节疲劳强度的研究..................................................................................444.5.1概述..........................................................................................................................................444.5.2焊接连接的疲劳评估..............................................................................................................455.5.3欧洲规范3有关疲劳强度规定...............................................................................................474.5.4肋板与桥面板的焊接连接的疲劳试验研究...........................................................................524.5.5肋板与桥面板的焊接连接的试验数据统计分析...................................................................614.5.6结论..........
