United Nations Secretariat Building
New York, NY

The UN Building consists of 39 stories and was completed in 1952. It houses the administerial functions of the UN, including day-to-day duties such as finance and translation, and the offices of ambassadors and delegates. In May of 2010, the building underwent a major $1.8 billion facelift attempting to give it a more modernized look.

The building was not only modernized in appearance but also was updated to address a more current need for blast protection. Larson Engineering provided the analysis of both the blast and wind loading for the entire façade retrofit. This included the state of the art blast resistant revolving and swing entry doors. The custom built entry provided a unique engineering challenge that Larson Engineering was able to meet.