IMEG provided structural engineering and design services for the new 473,770-sf, five-story Sheraton Los Angeles Hotel building in San Gabriel. The building houses 320 guest rooms, and is designed with a contemporary Art-Deco style including two interior courtyards along with three restaurants, street corridor retail space, three levels of subterranean parking, and 10,000-sf of event space. Other hotel amenities include a bar, pool, fitness facilities and luxury spa. A cast-in-place concrete system is utilized throughout the structure with mild steel slabs at the below grade and ground floor levels and post-tensioned slabs on the upper levels. The lateral resisting system in the building consists of special reinforced concrete shear walls. On the north edge of the property and above the parking garage, a large 30-ft tall open ballroom space will be accomplished with use of large open web steel trusses spanning approximately 112 feet. Steel columns and perimeter wide-flange girders will support the large trusses. The lateral resisting system of the steel ballroom structure utilizes buckling restrained braced (BRB’s) frames.