Stablity Considerations in the New E&CS Building

by Francois Cheong-Siat-Moy, California State Univ, United States,

Abstract: The new Engineering and Computer Science (E & CS) building at California State University, Sacramento (CSUS) is a five-story structure characterized by two shear walls in the east-west direction for resisting lateral forces. The gravity loads are supported by steel frames with Type II connections. The floor system is of the usual composite concrete on steel deck. Because of symmetry in construction, only one half of the building is considered for structural analysis purposes. Therefore, the mathematical model consists of a cantilever column carrying small axial loads in series with leaning columns supporting most of the gravity loads. This paper investigates the stability of a building under gravity loads. It is concluded that the K-factor from a structural analysis correctly predicts the buckling load under gravity forces.

Subject Headings: Gravity loads | Axial loads | Steel structures | Steel frames | Columns | Colleges and universities | Shear walls

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