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Analysis of distortion-induced fatigue crack at the web gap of i-beam in steel bridges |
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| รหัสดีโอไอ | |
| Title | Analysis of distortion-induced fatigue crack at the web gap of i-beam in steel bridges |
| Creator | Hung The Dinh |
| Contributor | Teerapong Senjuntichai, Akhrawat Lenwari, Toshiro Hayashikawa |
| Publisher | Chulalongkorn University |
| Publication Year | 2555 |
| Keyword | Steel I-beams, Steel, Structural, Bridges, คานเหล็กรูปตัวไอ, โครงสร้างเหล็กกล้า, สะพาน |
| Abstract | Distortion-induced fatigue cracking has occurred in many types of steel bridge structures, especially the welded structures where high local stresses exist. However, out-of-plane distortion-induced stresses have not been fully considered in the AASHTO design specifications. This research studies the behavior around web-gap of I-beam in steel bridges under cyclic loading and applies the linear elastic fracture mechanics concepts for prediction of fatigue cracking behavior. Besides, effects of various parameters on the distortion-induced fatigue cracking behavior are considered experimentally and numerically. The results show that finite element modeling with SED criterion is applicable for the crack path prediction. In addition, mode I and mode III affected the fatigue crack direction and fatigue crack growth rate. |
| URL Website | cuir.car.chula.ac.th |
