3 research outputs found
DOI: 10.2298/FUACE0801075M LIMIT ANALYSIS OF BEAMS UNDER COMBINED STRESSES UDC 624.072.2:624.04201(045)=111
Abstract. The problem of the determination of limit bearing capacity of beam cross section under pure bending, eccentric tension, pure shear, as well as combined stress is considered in this paper. The influence functions of the bending moment and axial force, as well as the bending moment, axial and shear force on the cross section limit bearing capacity in case of rectangular and I beam cross section are derived
Otkrivanje oÅ”teÄenja odreÄivanjem dinamiÄkih karakteristika
The change of dynamic parameters (stiffness, damping), as a consequence of structural history (erosion, friction, fatigue, internal damages and cracks), has an impact on decrease of reliability and serviceability of a structure or, drastically, causes its collapse. Having in mind that structural damage is small or embedded in the system, hence the detection cannot be done visually, one useful non-destructive procedure for damage determination by dynamic parameters evaluation - vibration monitoring of the structure.Promene dinamiÄkih karakteristika (krutosti, priguÅ”enja) kao posledice istorije konstrukcije (erozija, trenje, zamor, unutraÅ”nja oÅ”teÄenja i prsline) utiÄu na smanjenje pouzdanosti konstrukcije kao i na njenu upotrebljivost ili, u najgorem sluÄaju, mogu dovesti do njenog kolapsa. ImajuÄi u vidu da je oÅ”teÄenje konstrukcije malo ili unutar sistema, stoga ne može biti detektovano vizualno, u radu je predložen koristan ne-destruktivan postupak za odreÄivanje oÅ”teÄenja preko dinamiÄkih parametara - monitoring vibracija konstrukcije
Otkrivanje oÅ”teÄenja odreÄivanjem dinamiÄkih karakteristika
The change of dynamic parameters (stiffness, damping), as a consequence of structural history (erosion, friction, fatigue, internal damages and cracks), has an impact on decrease of reliability and serviceability of a structure or, drastically, causes its collapse. Having in mind that structural damage is small or embedded in the system, hence the detection cannot be done visually, one useful non-destructive procedure for damage determination by dynamic parameters evaluation - vibration monitoring of the structure.Promene dinamiÄkih karakteristika (krutosti, priguÅ”enja) kao posledice istorije konstrukcije (erozija, trenje, zamor, unutraÅ”nja oÅ”teÄenja i prsline) utiÄu na smanjenje pouzdanosti konstrukcije kao i na njenu upotrebljivost ili, u najgorem sluÄaju, mogu dovesti do njenog kolapsa. ImajuÄi u vidu da je oÅ”teÄenje konstrukcije malo ili unutar sistema, stoga ne može biti detektovano vizualno, u radu je predložen koristan ne-destruktivan postupak za odreÄivanje oÅ”teÄenja preko dinamiÄkih parametara - monitoring vibracija konstrukcije