木结构中轴心压杆(柱)稳定设计的直接法

DIRECT METHOD OF SECTION DESIGN FOR PRESSED ROD OF WOOD

在稳定设计中,根据已知轴向荷载来确定压杆(柱)的截面尺寸,当前国内外均采用反复试算的方法,设计过程非常繁琐,为了提高设计效率,笔者前面的研究中已提出了确定型钢压杆(柱)截面尺寸的简捷方法——直接法。在此基础上,本文进一步研究了木压杆(柱)截面尺寸的直接设计问题,首先导出了未知截面尺寸时压杆类型的判别准则,然后分别建立了大柔度杆及中等柔度杆截面尺寸的设计公式,使木压杆的稳定设计从根本上摆脱了传统的试算法,为结构工程师提供了简洁高效的设计工具。

The design of the section for pressed rod to carry a prescribed load requires trial-and-error calculations to the present at home and abroad, the process does overelaborate. To raise the design efficiency, a simple method to determine the section size of shape steel columns, such as direct method, has been advanced before. On the basis of this work, direct design of section size of pressed rod of wood has been studied further in this paper, the given formulas make the design work get rid of overelaborate trial-and-error calculations and raise design efficiency.