Skip to main content

Construction heads into final year for 2nd-tallest cable-stayed bridge in U.S. (VIDEO)

The under-construction new Gerald Desmond Bridge. Credit: Gerald Desmond Bridge Replacement Project

Construction of the second-tallest cable-stayed bridge in the United States is heading into its final year, with completion scheduled at the end of 2019.

The deck for the new $1.2 billion Gerald Desmond Bridge Replacement Project in Long Beach, California, stands 205 feet above the water, so the world’s largest cargo ships can travel underneath or their way in and out of the Port of Long Beach.

The new six-lane bridge will also have a bike and pedestrian path and observation decks. It will span the port’s 220-foot-wide back channel, allowing ship access to the North Harbor area. Construction began in 2014.

The cable-stayed design features two 515-foot-tall steel-reinforced concrete towers, which would make the bridge the second-tallest of any cable-stayed bridge in the United States, behind the Arthur Ravenel Jr. Bridge in Charleston, South Carolina, at 572.5 feet.

With its deck at 205 feet, the new Desmond Bridge will have the highest deck of any cable-stayed bridge in the country.

Other engineering highlights of the bridge, according to a recent case study by Enerpac:

  • 40 steel cables will connect each tower to the bridge deck.
  • The longest cable is 573 feet long.
  • 100 columns will support the east and west approach spans.
  • 350 foundation piles as deep as 175 beneath the ground will support the bridge.
  • The bridge is 8,800 feet long.

Enerpac provided strand jacks to lift the pier tables for each of the two towers. The pier tables each weigh 1.35 million pounds and would be impractical to lift by crane, according to Enerpac.

Bigge Crane and Rigging Co. used Enerpac strand jacks that each had 48 steel strands. The strand jacks were synchronized by computer and lifted in increments of 18 inches at a time. The lift took 10 hours.

The pier tables were installed in Spring 2018, according to the case study. Bridge segments will be added symmetrically on both sides of each pier table. The final off-ramp is under construction, which will be followed by construction of the main span.

The bridge replaces the current Desmond Bridge, which was built in the 1960s and is 155 feet above the water. The current bridge will be demolished after the new bridge is completed.

The new bridge project is a joint effort of Caltrans and the Port of Long Beach. The contractor for the bridge project is SFI JV, a joint venture composed of Shimmick Construction, Spanish company FCC Construction and Italian company Impregilo S.p.A.

For a live stream of the bridge, click here.

To watch a video on the “topping out” ceremony for the two 515-foot towers, see below:

 

 



from Equipment World http://bit.ly/2RojrFp
via Handy Rep Ai
Labels:

Comments

Post a Comment

Popular posts from this blog

List of Best Construction Companies in Bengaluru

Bangalore city which is now renamed as Bengaluru city is one of the biggest IT hubs in India. Bengaluru city has attracted many top construction companies in India to construct huge IT parks across the Bengaluru city. We have compiled a list of best construction companies in Bengaluru so that job seekers who are looking for civil engineering jobs can directly visit the job page of this top construction companies in Bengaluru and apply to appropriate jobs. Scope of top construction companies in Bengaluru Apart from building big IT parks, these leading construction companies in Bengaluru are also involved in construction of residential apartments in Bengaluru area, flats in Bengaluru city, big retail outlets in Bengaluru, hotels in Bengaluru, malls in Bengaluru, commercial spaces in Bengaluru etc. That is why in addition to big construction companies in Bengaluru, this city has also attracted top Architecture companies in India, best construction contractors in India, top scaffoldin...
19 comments
Read more

12 Fast-Growing Shrubs to Plant This Fall

Though spring is traditionally the biggest season for planting, fall is a great time to get in new shrubs. When planted at least a few weeks before the first frost, they have time to get their roots established before winter dormancy, and will be ready to burst forth with foliage and blooms in spring. Check out some of our favorite fast-growing shrubs you should consider planting this fall. from Bob Vila : Trusted Home Renovation & Repair Expert https://ift.tt/2xCFQnv via Handy Rep Ai
Post a Comment
Read more

Volvo CE unveils ZEUX: How a LEGO model designed with kids became a prototype for a real autonomous wheel loader

The ZEUX autonomous wheel loader concept employs a scout drone and an adjustable, boom-mounted camera called The Eye, to keep track of its surroundings and indicate focus to nearby humans. Of all the major heavy equipment manufacturers, none has been more outwardly committed to bringing futuristic, autonomous and electrified machines to real-world quarries and jobsites than Volvo. For the last few years, Volvo has been publicly sharing updates on the progress of autonomous machine prototypes like its HX2 carrier (a cab-less, self-driving dump truck) and LX1 wheel loader, and electrified prototypes like the EX1 cable-connected excavator. And though Volvo has plans to get the latest versions of those machines working at a real Skanska quarry this fall, the company isn’t letting up on its push for innovation. The manufacturer even found an opportunity to use its partnership with LEGO to inform the design of its future machines. This week, Volvo and Lego, which have partnered on high...
Post a Comment
Read more