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针对直湖港大桥钢—混凝土组合桥面系的受力特点,利用空间有限元建立焊钉连接件的局部模型,从剪应力、轴应力两方面,对计算结果进行了研究,并分析了焊钉直径、长度、混凝土强度对焊钉承载力的影响,得出焊钉直径对承载力的影响最大。
According to the mechanical characteristics of the steel-concrete composite deck of Zhinhu Port Bridge, the local model of the welded joint was established by means of space finite element method. The calculation results were studied from the aspects of shear stress and axial stress. The influence of the diameter and length of nail and the strength of concrete on the bearing capacity of welding nails was analyzed. The results showed that the diameter of welding nails had the greatest influence on bearing capacity.