The research resulted in a new method for designing earthquake-resistant buildings.Ĭhia-Ming Uang of UCSD and James Ricles and Richard Sause of Lehigh are co-PIs on the project, "Advancing Knowledge on the Performance of Seismic Collectors in Steel Building Structures." The multi-university team was awarded a National Science Foundation grant of approximately $800,000 in August 2017 to fund the research. The second project examined how to connect floors and walls in a way that lets them separate slightly during an earthquake-"to kind of do a dance," Fleischman said-rather than build up large forces. The first project, which was completed in 2010, won multiple awards for its development of safe designs for floor diaphragms in precast concrete buildings, and it led to changes in the federal building code. This is the third collaboration for the University of Arizona, Lehigh University and the University of California, San Diego. "It doesn't matter that the train is going to get there on time - you're going to miss the train." "It would be like if you live a mile from the train station and your train is on time, but you hadn't scheduled a cab to get you to the train station," Fleischman said. Forces cannot be transferred vertically from walls and braces to the earth unless the steel collectors first transfer those forces horizontally from the floor to the fuses in the walls and braces. But, as anyone who's ever stood in the middle of a room during an earthquake knows, the frames and walls of a building aren't the only parts of a building affected by seismic forces: the floor is also affected. The network of structural fuses is responsible for vertical force transfer. "You can't out-strength an earthquake, so you actually put fuses-the equivalent of a fuse in your fuse box, a structural fuse-in your frame or wall," explained Robert Fleischman, UA professor of civil engineering and engineering mechanics, and principal investigator for the project. Research into seismic building safety has traditionally focused on walls and braces, which form a downward load path to transfer seismic forces through a building's foundation and into the ground. These reinforcements in concrete floor slabs, or in special beams below them, are responsible for horizontally transferring earthquake forces. This is a 3D Printed Product and will have Print lines and other minor imperfections as a result of the 3D Printing and support removal process.The UA-led research team is turning its attention from vertical to horizontal transfer of forces by examining a less-explored, but critically important, piece of the seismic puzzle: steel collectors. These Quake Part Packs come with assorted parts that require careful assembly. These Part Packs are assembled from the assorted Quake Tank Destroyer variant parts and are thus compatible with it. For those Technicians that truly believe that that variety is the spice of life love to keep extra parts for their Quake Tank Destroyers these Parts Packs are exactly what they're looking for! The Part Packs currently come in several options, 5 Main Gun Packs that contain 3 Weapons each and 2 Secondary Plug Packs. These options are all capable of being magnetized to allow for your Quake tanks to easily swap weapons and other equipment quickly and easily between battles!
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