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文献[1]提出了双向偏心受压的计算方法,文献[2]又提出了换算相对保护层厚度的方法对文献[1]的方法进行了改进,同时编制了设计图表,使计算更为简捷,但均限于矩形截面。本文证明上述二个文献提出的方法均可推广到棱形截面,从而进一步扩大了适用范围。同时提出了等效截面的换算方法,使形状复杂计算困难的截面化为形状简单计算简捷的截面进行计算。
Literature [1] proposed the calculation method of bi-directional eccentric compression. Literature [2] also proposed the method of converting relative thickness of protective layer to improve the method of literature [1], at the same time, compiled the design chart to make calculation more simple , But are limited to rectangular cross-section. This paper proves that the above two literature methods can be extended to the prism cross-section, thus further expanding the scope of application. At the same time, the method of equivalent section transformation is proposed, which makes the section with complex shape calculation difficult to calculate the section with simple shape and simple calculation.