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Structural Engineering and Mechanics Volume 4, Number 4, July 1996 , pages 365-381 DOI: https://doi.org/10.12989/sem.1996.4.4.365 |
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Braced, partially braced and unbraced columns: Complete set of classical stability equations |
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AristizabalOchoa JD
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| Abstract | ||
| Stability equations that evaluate the elastic critical axial load of columns in any type of construction with sidesway uninhibited, partially inhibited, and totally inhibited are derived in a classical manner. These equations can be applied to the stability of frames (unbraced, partially braced, and totally braced) with rigid, semirigid, and simple connections. The complete column classification and the corresponding three stability equations overcome the limitations and paradoxes of the well known alignment charts for braced and unbraced columns and frames. Simple criteria are presented that define the concept of partially braced columns and frames, as well as the minimum lateral bracing required by columns and frames to achieve non-sway buckling mode. Various examples are presented in detail that demonstrate the effectiveness and accuracy of the complete set of stability equations. | ||
| Key Words | ||
| buckling, building codes, construction type, columns, computer applications, design, frames, loads, stability | ||
| Address | ||
| AristizabalOchoa JD, NATL UNIV,SCH MINES,MEDELLIN,COLOMBIA | ||