At last,studying the stability of the sway frame composed of portal frame, fulcrum column, upper and lower crossbeam. the result showed:①long suspenders should be reinforced temporarily at stiffening chord construction stage.
将桥门架、支点立柱和上下横梁共同视为三柱式两层框架,对塔柱面外稳定性进行分析。
参考来源 - 刚性悬索加劲钢桁梁桥加劲弦安装过程及成桥阶段塔柱稳定性分析·2,447,543篇论文数据,部分数据来源于NoteExpress
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