不同波纹形式的波形钢腹板等效换算的稳定承载力对比

Comparison of Bearing Capacity of Corrugated Steel Webs of Different Wave Forms after Equivalent Conversion

本文按波长相等,波幅与展开长度等效的方法,将梯形波换算成正弦形波,对换算后的两种波纹形式的波形腹板构件分别在轴心受压、纯弯、压弯条件下进行了稳定承载力的对比。分析结果表明,相同受力情况下,换算前后两种波纹形式的波形钢腹板构件稳定承载力基本相同。因此,采用本文提出的不同波形折算方法,可以方便地实现不同波形腹板构件之间的等效换算。

In this paper, according to the method of keeping wavelength the same, while the amplitude and unfolding length approximately equivalent, trapezoidal wave is transformed into sine wave. Based on this the stability bearing capacity under axial compression, pure bending, bending of corrugated web member of two kinds of wave forms converted respectively are compared. The results show that under the same loading condition, the stability bearing capacity of the two kinds of corrugated web member after the equivalent conversion is basically the same. By using different waveform eonversion method presented in this paper, the equivalent conversion between different corrugated web member can be easily realized.