Abstract
The bending moment of Hie beam is varied along the member under Hie dead load and lateral seismic load, and then the stress of the upper flange whh Hie lateral bracings become compressive or tensile. Therefore the lateral bracings connected to flange need to have Hie lateral and rotational rigidity to prevent the lateral buckling of the beams when the upper flanges have the tensile stress. In this paper, Hie elastic lateral buckling load of H-shaped beams under moment gradient is developed whh the energy method, and Hie relation between Hie elastic lateral buckling load and Hie required rigidity is clarified. Next, the elasto-plastic lateral buckling moment is evaluated using the modified slenderness ratio with the elastic lateral buckling load.
Original language | English |
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Pages (from-to) | 761-770 |
Number of pages | 10 |
Journal | Journal of Structural and Construction Engineering |
Volume | 79 |
Issue number | 700 |
DOIs | |
Publication status | Published - 2014 Jun |
Keywords
- Elastic Lateral Buckling Load
- Elasto-Plastic BucklingMoment
- HShaped Beams
- Moment Gradient
- Required Rigidity
ASJC Scopus subject areas
- Architecture
- Building and Construction