【摘要】 钢箱-砼组合拱桥采用两段钢箱吊装合拢施工,在拱脚、拱顶利用连接板临时合拢整个钢箱拱肋,合拢连接板的力学行为对拱肋受力、安全显得十分必要,通过对钢箱拱肋临时合拢连接板的参数计算,得出钢箱拱两段合拢中拱脚、拱顶处连接板的合理布置理论依据,并建立有限元分析合拢过程中钢箱拱肋的受力行为,获得典型作用下的连接板布置数量。更多还原

【Abstract】 In the steel box-concrete composite arch bridge construction two Gusset plates in arch springing and crown are used to temporarily close the whole structure,of which the safety checking of Gusset plate is important,A parametric modal is established to analyze the Gusset plate of steel box-beam arch rib in temporary closure in order to aequire the theoretical foundation of Gusset plate setting in arch springing and crown.The mechanical behavior of steel box arch rib is analyzed and the number of Gusset plate used in typical combination is provided.更多还原