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<br />Amphitheater Structure <br />The elevated amphitheater structure system will be studied during <br />the BDR phase. A torsionally stiff beam at the bridge end with two <br />longitudinal through-girders is a potential solution. The transverse <br />beams will span from the through-girders to support the floor <br />system. Deflections under dynamic loading will be analyzed to <br />eliminate resonance. A strut supporting the balcony tip, tying <br />diagonally back to the main pier, is also an option to control <br />deflections, add redundancy, and reduce superstructure depths <br />and weight. <br />Ancillary Structures <br />Elevator shafts and access stair structures will be integrated into <br />the main crossing and site. We propose to integrate the stair <br />system into the elevator shaft to minimize the footprint. H&H has <br />provided these systems successfully with attention to the ADA <br />requirements and electro-mechanical interfaces on past <br />projects. We will also consider space for emergency <br />responders and cultural considerations such as <br />automation to be consistent with other Shabbat <br />compliant elevators in the City. Elevator shaft design <br />will consider adequate inspection and maintenance <br />access to mechanical and structural elements. <br />Substructure <br />The provided substructure concept includes a <br />“Y” or “delta” type pier. The spine and rib <br />system was developed to be compatible with <br />this concept. H&H bridges have expressed the <br />substructure geometry in many forms including <br />“Y” or “delta” types. Substructure elements <br />will be designed to resist errant vehicular <br />loads. Lighting elements will be integrated into <br />the pier design. <br /> <br /> <br /> H&H-Designed Iconic Woodrow Wilson Bridge - Delta Piers <br />Integrated Stairs and Elevator Shaft <br />Shabbat Elevators in Sunny Isles