Building:   845 UN Plaza , New York, NY
Client:   The Trump Organization
Architect:   Costas Kondylis & Associates, P.C.
Structure Type:   70 Story & 2 Levels Underground Parking / Concrete Structure
Project Category:   Residential Developments
Photos:   Click photos to enlarge

Ysrael A. Seinuk Area of Specialization:

High rise buildings Structures in Severe Wind and Seismic Environments

Project Awards

DIAMOND AWARD - 2001 New York Association of Consulting Engineers

NATIONAL RECOGNITION AWARD - 2001 American Consulting Engineers Council

AWARD OF MERIT - 2000 Best of 2000 Awards New York Construction News

ANNUAL AWARD - 2000 New York Concrete Industry Board

Project Description
Trump World Tower, a $400 million, 880,000 S.F. building, is the tallest residential tower, as well as the most slender high-rise building, in the world. Located between 47th and 48th Streets on First Avenue, it stands on the previous site of the 25-story United Engineering Building that was demolished to accommodate the new construction. The new 70-story tower rises 860 ft. above street level and has 2 underground levels.

The tower footprint is rectangular with a 77 ft. by 144 ft. dimension. This provides a slenderness ratio of 11:1, which in combination with its height, defines its principal engineering challenge. The building is a concrete structure with major shear walls providing the lateral resisting system. The stiffness of the shear walls are enhanced by a perimeter concrete "Belt" at the mid-height of the tower and a perimeter concrete "Hat" at the roof of the building. The floor system is flat plate construction, and the building is founded on Manhattan rock. In order to minimize wind induced acceleration, the tower was designed to utilize a Tuned Mass Damper system.