Rainier Square Tower

Seattle, Washington

Wright Runstad & Company

Rainier Square Tower

Hart Crowser is working on behalf of Wright Runstad and in close collaboration with the design and construction team on a complicated shoring application in Seattle. The new 850-foot-tall Rainier Square tower will be built around and adjacent to the 48-story existing Rainier Tower, which is supported on a large mat foundation. The shoring wall will extend well below the mat foundation. Hart Crowser conducted a performance based seismic design of the tower and a detailed Plaxis finite element model of the shoring wall adjacent to the tower. The Hart Crowser model was used to predict lateral and vertical deflections of the soil, shoring wall, and the existing foundations. It was also used to optimize the size and spacing of the shoring wall elements. Hart Crowser also designed and is implementing a remote acquisition monitoring program of the shoring walls, existing building, existing foundation, and supporting elements. The automated data acquisition system will feed information continuously to a project website.