北方地区公路钢—混组合钢板梁桥设计要点及技术对策

Design Points and Technical Countermeasures for Highway Steel-concrete Composite Steel Plate Girder Bridge in Northern Area

结合低温严寒、冰雪冻融以及冬季除雪等北方地区的特有建设条件,分析了汽车荷载、桥梁跨径以及桥梁宽度对组合钢板梁桥结构形式选择的影响,并分别从钢梁与桥面板的设计角度出发,归纳、总结了钢梁防疲劳、防脆断设计及桥面板耐久性设计要点,对相应的技术对策进行了探讨。

Combining with the special construction conditions in northern area like low temperature and severe cold, freezing and thawing of ice and snow, and snow removal in winter, the influence of automobile load, bridge span and bridge width on the structural form selection of composite steel plate girder bridge is analyzed, the anti- fatigue, anti-brittle fracture of steel girder and durability of bridge deck are summarized respectively from the design point of view of steel girder and bridge deck, and the corresponding technical countermeasures are further discussed.