| Autor: |
Adel Helmy Salem, Osama El-Desouky, M. Raslan, Mostafa Abdel-Wahab |
| Rok vydání: |
2006 |
| Předmět: |
|
| Zdroj: |
The International Conference on Civil and Architecture Engineering. 6:123-141 |
| ISSN: |
2636-4387 |
| DOI: |
10.21608/iccae.2006.45760 |
| Popis: |
This investigation includes the determination of the elastic critical summation of loading ofdifferent varieties of portal and box frames resting on elastic foundations and subjected tounsymmetrical loading. The critical buckling loads of these frames are obtained for practicalvalues of the stiffness of the elastic springs. In addition, the effect of the stiffness of the elasticfoundations on the elastic stability of these frames is thoroughly examined by changing thestiffness of the elastic springs. Different families of curves are obtained to represent therelationship between the critical buckling loads and the parameters affecting it. Forunsymmetrical loading P1 & P2, The elastic critical sum of loading is found to be nearlyconstant and is irrespective of the load ratio p1/p2even for the most severe case whenP = zero 1 and the whole load 2 P acts on the other column. In general, there was a completeanalogy between frames subjected to unsymmetrical loads and resting on elastic springs andthose resting on rigid supports for both portal and box frames. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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