摘要
直接强度法(DSM)是冷弯薄壁型钢稳定设计的主要方法,这种方法对腹板未开孔构件设计可行性强,但是对于腹板开孔构件的适用性还不得而知。选取一定参数的纯弯开孔构件进行了有限元分析,分析表明:纯弯构件发生畸变屈曲的DSM公式在孔高比为0.2,0.4,0.6和0.8下均需要进行修正,并给出了修正公式。
Direct Strength Method( DSM) is the main method for the stability design of cold-formed steel,the method of web undrilling component design is feasible,but suitable for web opening component also can make nothing of it. This paper selects some parameters of pure bending members with holes for the finite element analysis,analysis showed that the DSM formula of pure bending distortional buckling hole in the high ratio of0. 2,0. 4,0. 6 and 0. 8 are revised,and the revised formula is given.
出处
《山西建筑》
2017年第32期40-42,共3页
Shanxi Architecture
关键词
直接强度法
有限元
冷弯薄壁C型钢
腹板开孔
direct strength method
finite element
cold-formed thin walled C-section steel
web opening holes
