Leslie Earl Robertson

  Reseacher

Leslie Earl Robertson was born on February 12, 1928, and died on February 11, 2021, from blood cancer, he was an American engineer.

Mr Leslie was the lead structural engineer of the Twin Towers of the original World Trade Center in New York City.

He was the structural engineer on numerous other projects, including the Shanghai World Financial Center and the Bank of China Tower in Hong Kong.

Leslie was born in Manhattan Beach, California where he studied civil engineering at University of California, Berkeley, receiving a BSc degree in 1952.

Leslie engineering career began in 1952 when he joined Kaiser Engineering. In 1958, Leslie joined the Seattle structural and civil engineering firm Worthington and Skilling.

Worthington selected him, Skilling, Helle, and Jackson (WSHJ) to participate in the design of the World Trade Center Twin Towers 1966–1971, his first high rise construction.

In 1967 Leslie was made a partner and WSHJ was renamed Skilling, Helle, Christiansen, Robertson.

The firm split its operations in 1982, with Robertson renaming the East Coast office Leslie E. Robertson Associates RLLP.

Since the attack on the collapse of the World Trade Center in 2001, there have been many debates about the safety of rent-space-maximized designs.

Most people would agree that the World Trade Center’s design withstood the two large planes’ impact with enough time to allow many thousands of occupants to evacuate safely.

Leslie firm later participated in developing a database of necessary structural information for the towers of the World Trade Center (WTC1 and 2) for NIST and FEMA.

He also records the undocumented structural changes that have been made to the buildings after construction began.

Leslie Earl Robertson passed away at the age of 92 due to Blood Cancer.

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