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Direct Strength Method of Design for Channel Sections in Shear with Square and Circular Web Holes
| 题名： | Direct Strength Method of Design for Channel Sections in Shear with Square and Circular Web Holes |
| 正文语种： | 英文 |
| 作者： | Song Hong Pham; Cao Hung Pham;Gregory J. Hancock |
| 作者单位： | Univ, of Sydney |
| 关键词： | Direct strength method; Web opening; Shear strength; Buckling analysis; Square and circular holes; Metal and composite structures. |
| 摘要： | The direct strength method (DSM) design rules for cold-formed steel members in shear have been incorporated recently into the North American specification for the design of cold-formed steel structural members and are being implemented in the Australian cold-formed steel structures standard. The method, which was calibrated for unperforated members only, requires two inputs including the buckling load Vcr and the shear yielding load Vy. For members with square web cutouts, Vcr can be computed by either the spline finite strip method or the tabulated values based on the shear buckling coefficients kv as in previous studies or the finite element method. However, Vv has not been accurately formulated including holes. This paper represents a practical model to obtain Vy for members with central openings subjected predominantly to shear. The model ranges from very small holes where traditional shear yielding predominates to large holes where Vierendeel action dominates. The model is verified with the DSM design formulas using the predominantly shear tests recently conducted at the University of Sydney and Queensland University of Technology with both square and circular web openings and for shear spans with aspect ratio of 1.0. DOI: 10.106l/(ASCE)ST.1943-541X.0001765. © 2017 American Society of Civil Engineers. |
| 出版日期： | 2017.06 |
| 出版年： | 2017 |
| 期刊名称： | Journal of Structural Engineering |
| 卷： | Vol.143 |
| 期： | NO.06 |
| 页码： | 04017017 |
相关文献
- Shear Strength Experiments and Design of Cold-Formed Steel Channels with Web Holes
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- Shear Capacity of Cold-Formed Steel Channels with Edge-Stiffened Web Holes, Unstiffened Web Holes, and Plain Webs
- Design of SupaCee Sections Subject to Web Crippling under One-Flange Load Cases
- Direct Strength Design of Cold-Formed Channels with Web Openings in Shear
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