國外土木工程現(xiàn)狀和未來-文庫吧資料
2024-09-24 20:44本頁面
【正文】 ehavior of buildings and bridges under extreme loading Design and validation of smart structure technologies Evaluation and improvement of new and existing highway bridges Development of high performance fiber reinforced cementitious posites University of Michigan Interested in – how buildings and bridges behave under the extreme loading conditions generated by manmade and natural hazards such as seismic excitation, collision by heavy objects, and blast. – how to utilize new materials and technologies to create innovative structural systems that mitigate the potentially catastrophic effects of extreme loading Sherif ElTawil University of Michigan Enter an imploding steel building examine from the outside how the collapse process progresses University of Michigan When a critical column is damaged as a result of an extreme loading event, catenary action allows gravity load that was previously supported by the damaged element to span adjacent structural members. The 2 animations below the results of a simulation conducted to investigate the role of catenary action as a steel subassemblage responds to column loss. The simulations shows ductile fracture occurring in a RBS beamcolumn moment connection as it undergoes very large deformations in catenary mode. Top view 3D view Some interesting animations showing higher mode effects (. whiplash effects) in tall structures subjected to earthquakes. The buildings are reducedbeamsection steel moment frames and are designed according to the latest design specifications. The blue colors indicate initiation of yielding in the members, while the blue triangles indicate plastification of the reduced beam section. 4story frame ,8story frame ,16story frame Picture showing overview of crash simulation conducted to investigate bridge vulnerability to extreme events. The pier, piles, pile cap, surrounding soil, elastomeric bearings, and superstructure are all modeled in this simulation. Animation showing 18,000lb truck colliding with bridge Pier (609 KB). Closeup of animation (Large file, 2 MB). University of Michigan Victor Li – micromechanics based posite materials design and engineering, innovative structures design based on advanced materials technology engineered cementitious posite Deicing Salt Scaling Resistance of Mechanically Loaded Engineered Cementitious Composites Engineered Cementitious Composites with High Volume Fly Ash Department of Civil and Environmental Engineering at the University of Illinois 伊利若斯大學(xué)厄巴納 尚佩 founding 134 years ago greatest civil engineering educators were former faculty members – Hardy Cross, Nathan Newmark, Ven Te Chow, Ralph Peck, Richard Engelbrecht, Chester Seiss, and William Hall Department of Civil and Environmental Engineering at the University of Illinois 1 Ranked Graduate Program in . 1 Ranked Undergraduate Program in . 2 Ranked Environmental Program in . 54 Faculty, 30+ Visiting Scholars 400 Graduate Students (50 from China) 450 Undergraduate Students College of Engineering ,University of Illinois Materials 2 。 加州大學(xué)伯克利分校 ,University of C
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