https://www.eq-eng.com/about daily 0.75 2021-04-24 https://static1.squarespace.com/static/6081a2c6dd671f6ad053a4d0/t/6081aa211a8e6f2ce323544a/1558965382740/MHeiderich_ReflexionenZwei-05-copy.jpg About https://www.eq-eng.com/our-team daily 0.75 2021-04-27 https://static1.squarespace.com/static/6081a2c6dd671f6ad053a4d0/t/608840e4cfce0c3ea7d33621/1619542287660/Brian+4.jpg Our Team - Brian Olson, Principal Tobias Keene, D.D.S. Hailing from Richmond, Virginia, Dr. Tobias Keene brings a bit of unabashed Southern hospitality to all his patients. He moved to Washington, D.C. over thirty years ago as a freshman at Ivy College. Right after graduation, he attended World University’s School of Dentistry. Before opening Keene Dental in 1994, he worked for free clinics and some of the finest practices in the District. He is part of the 123 Dental Association and stays up-to-date on the latest dental discoveries. When not striving to keep his patients happy and healthy, he’s enjoys hiking with his family in Rock Creek Park. https://www.eq-eng.com/contact daily 0.75 2021-04-24 https://static1.squarespace.com/static/6081a2c6dd671f6ad053a4d0/t/6081aa2bf82fad28966448c5/1558965382740/MHeiderich_ReflexionenZwei-05-copy.jpg Contact https://www.eq-eng.com/work-1 daily 1.0 2021-04-23 https://www.eq-eng.com/work-1/project-two-gpwnt monthly 0.5 2021-04-22 https://www.eq-eng.com/work-1/project-one-6j7pk monthly 0.5 2021-04-22 https://static1.squarespace.com/static/6081a2c6dd671f6ad053a4d0/t/608360d3fe6a362c595260a2/1623368999841/Oxford+St+Front+View.jpg Work - Soft Story Retrofit This was a voluntary seismic retrofit of a soft story building located in Berkeley, California. The owners of the 4-unit condominium building were concerned about potential collapse or excessive damage in the event of a significant earthquake. The solution involved a combination of strategies. At the rear of the building where connectors were installed to connect the floor through the rim joist to the existing foundation. For the open front created by the garages, a system of steel columns connected by a concrete grade beam was utilized. Traditional plywood shear walls were used on the long sides of the building. To minimize the amount of foundation work, shear walls were sized to minimize the size of holdowns. Where larger holdowns were required, we instead doubled up smaller holdowns that could still be installed into the existing foundation.