Structural Behavior of High Performance Steel Bridges
Event details
| Date | 17.10.2013 |
| Hour | 12:15 › 13:15 |
| Speaker | Dr. Lan Duan |
| Location |
GC B331
|
| Category | Conferences - Seminars |
Compared with conventional steels used in bridge construction, high performance steel (HPS) has superior properties in terms of strength, weld ability, fracture toughness and weathering characteristics. These material properties lead to very competitive costs and low carbon release in the whole life span of HPS bridges. This presentation focuses on the high performance steel HPS 485W, with a nominal yield strength of 485MPa. Studies are conducted on fracture control, fatigue resistance design, fabrication technology, structural strength and stability. With respect to fracture control and fatigue design, experimental campaigns were conducted, comprising impact toughness (CVN) tests, ductile fracture toughness (JIC) tests, crack tip opening displacement (CTOD) tests and fatigue crack growth rate (da/dN) tests. In addition, the flexural and shear behavior of hybrid high performance steel beams were investigated by means of experimental tests, finite element calculations and theoretical analyses. The study addresses the HPS beam’s capacity, ductility, failure mode and stability behavior. Based on these research results, the costs and performance of high performance steel plate girder bridges and traditional steel plate girder bridges are compared.
Bio: Lan Duan is a lecturer at the Bridge Engineering Institute, Highway School, Chang’an University in China. She received her Ph.D. in Civil Engineering from Chang’an University in China. Lan Duan works research focuses on high performance steel bridges, fatigue and fracture of steel bridges, and steel-concrete composite bridges. She has participated in the following research programs: “Static and fatigue behavior study for high performance steel structure”, “Key technology study for high strength steel bridge”, “Capacity and remaining life calculation for old steel bridge” and “Orthotropic steel bridge deck fatigue mechanics and remaining fatigue life evaluation study”.
Bio: Lan Duan is a lecturer at the Bridge Engineering Institute, Highway School, Chang’an University in China. She received her Ph.D. in Civil Engineering from Chang’an University in China. Lan Duan works research focuses on high performance steel bridges, fatigue and fracture of steel bridges, and steel-concrete composite bridges. She has participated in the following research programs: “Static and fatigue behavior study for high performance steel structure”, “Key technology study for high strength steel bridge”, “Capacity and remaining life calculation for old steel bridge” and “Orthotropic steel bridge deck fatigue mechanics and remaining fatigue life evaluation study”.
Practical information
- General public
- Free
Organizer
- Prof. Nikolas Geroliminis & Prof. Katrin Beyer
Contact
- Prof. Eugen Brühwiler