Cross-sectional bending strength of steel Elliptical-Hollow-Sections (EHSs) based on Equivalent-Resistance-Capacity-Method (ERCM)
| Autor: | Konjengbam Darunkumar Singh, Perumālla Venkata Rāma Narendra |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Cantilever
Materials science Carbon steel business.industry Mechanical Engineering Shell (structure) 020101 civil engineering 02 engineering and technology Building and Construction Structural engineering Bending engineering.material 0201 civil engineering Moment (mathematics) 020303 mechanical engineering & transports 0203 mechanical engineering Flexural strength Buckling engineering business Rotation (mathematics) Civil and Structural Engineering |
| Zdroj: | Thin-Walled Structures. 157:106947 |
| ISSN: | 0263-8231 |
| DOI: | 10.1016/j.tws.2020.106947 |
| Popis: | An expression for cross-sectional bending capacity prediction curve is proposed in this study based on the Direct-Strength-Method (DSM) approach using a comprehensive data from the literature on structural carbon steel Circular-Hollow-Sections (CHSs). Later, according to the Equivalent-Resistance-Capacity-Method (ERCM), improved empirical expressions for the equivalent CHS diameter of Elliptical-Hollow-Section (EHS) are derived using the proposed CHS bending capacity prediction curve and the data of EHSs from the literature. A unified set of cross-section slenderness limits for assessing the CHS and EHS members under bending is proposed. Also, the proposed expression for the bending resistance curve based on DSM is transformed into the generalized form of the traditional cylindrical shell buckling capacity curve as a practical solution in harmony with the newly introduced Reference-Resistance-Design (RRD) guidelines. Finally, the behaviour of EHS cantilever members under cyclic bending is assessed in terms of cyclic moment resistance and rotation capacities based on the authors' previous study. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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