Keywords: Blast, seismic, testing, composite columns, multi-hazard, retrofit, design, jacketed columns, concrete-filled steel tubes. Abstract: This report presents the results of an analytical and ...

Near the water in downtown Seattle, there's about to be a skyscaper unlike anything the city—and, well, the world—has seen. A 38-story tower will sit a full 85 feet off the ground, creating a open ...