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整体式钢锚箱以其承载能力大、耐久性好、制作安装方便等优点,在大跨径斜拉桥中得到广泛应用,但其焊接部位在反复循环荷载作用下极易产生疲劳损伤破坏,为研究汽车荷载作用下钢锚箱的疲劳性能。本文通过对某斜拉桥整体式钢锚箱进行标准汽车荷载和超载作用下索力及钢锚箱关注细节疲劳性能分析,研究结果在实际工程中得到了应用且效果显著。
The integral steel anchor box has been widely used in long-span cable-stayed bridges because of its large carrying capacity, good durability, easy installation and installation, but the welded parts are prone to fatigue damage under repeated cyclic loading, In order to study the fatigue performance of steel anchor box under the action of automobile load. In this paper, through analyzing the fatigue performance of cable stayed cable and steel anchor box under the condition of standard car load and overloading, the research results have been applied in practical engineering and the effect is remarkable.