Trident and ULMA raise ‘tallest skycraper in Brooklyn’

By Leila Steed27 September 2021

9 Dekalb Ave Brookly, New Yorkn Measuring 325m tall and comprises 73 floors, 9 DeKalb Ave is said to be the tallest building in Brooklyn. ©ULMA Construction

US-based Trident General Contracting is using a variety of formwork, shoring, climbing, and safety systems for the construction of a 325m tall skyscraper in Brooklyn, New York, US.

Known as 9 Dekalb Avenue, the residential tower is being built on behalf of JDS Development.

It was designed by SHoP Architects and comprises 425 apartments, 150 condominiums, an outdoor terrace and a rooftop swimming pool. 

To construct the tower, which will rise 73 storeys into the air upon completion, Trident is using the newly updated telescopic HWS perimeter safety screens from specialist access equipment provider, ULMA Construction

ULMA said, “The exceptional height and constant change in shape of the building required this technical solution.

“The other big challenge of this job were the three transfer levels on floors 34, 51, and 74, with thick slabs supporting solid perimeter walls designed to transfer both vertical and lateral load.”

The HWS system was used to brace the wall formwork prior to pouring the concrete. According to ULMA, this meant that Trident could proceed without the use of a crane.

9 Dekalb Ave Brooklyn, New York The HWS was chosen as the most suitable technical solution for the new tower, owing to its height and constantly changing in shape. ©ULMA Construction

The cores were made with the RKS Rail Climbing Formwork, which ensures safe climbing at height due to the rails attached to the walls.

“It is versatile and can be lifted by a hydraulic mechanism or without crane assistance,” said ULMA.

Alongside the RKS Rail Climbing formwork and HWS system, Trident also used the MEGALITE handset panel to erect the skyscraper’s walls and columns. 

According to ULMA, the product can support a concrete pressure of up to 1250psf and enables walls measuring more than 2.43m (8ft) in height to be intalled. 

MAGAZINE
NEWSLETTER
Delivered directly to your inbox, Access, Lift & Handlers Newsletter features the pick of the breaking news stories, product launches, show reports and more from KHL's world-class editorial team.
Featured Training From Easybook
NYC SST Online Training

The clock is ticking… Construction workers in New York City – have you fulfilled your required Site Safety Training (SST)? Get your SST card online now

Latest Events
Last chance to register for the virtual ALH Conference
The ALH Conference is set to kick off (virtually) at 9 a.m. CST on Tuesday, Sept. 14. This is your last chance to register for the live event
ALH Conference shifts to virtual format
The ALH Conference, set for September 14, will be held online, ALH and KHL Group have announced. Registration is now open
ARA Show: Rental-ready
The ARA Show will return to Las Vegas this October for the first time in eight years. ALH provides a preview to the all-things-rental event.
Off-Highway Research

The gold standard in market research

Off-Highway Research offers a library of more than 200 regularly updated reports, providing forensic detail on key aspects of the construction equipment industry.

Our detailed insights and expert analyses are used by over 500 of the world’s largest and most successful suppliers, manufacturers and distributers, to inform their strategic plans and deliver profitable growth.

Click here to visit our website

CONNECT WITH THE TEAM
Lindsey Anderson Editor, Access, Lift & Handlers Tel: +1 312 929 4409 E-mail: lindsey.anderson@khl.com
Tony Radke Sales Manager Tel: +1 480 478 6302 E-mail: tony.radke@khl.com
CONNECT WITH SOCIAL MEDIA