daily menu » rate the banner | guess the city | one on oneforums map | privacy policy | DMCA | news magazine | posting guidelines

Go Back   SkyscraperCity > World Development News Forums > General Urban Developments > DN Archives



Global Announcement

As a general reminder, please respect others and respect copyrights. Go here to familiarize yourself with our posting policy.


Reply

 
Thread Tools
Old October 2nd, 2005, 07:44 AM   #241
jesarm
مدريد / Мадрид / 马德里
 
jesarm's Avatar
 
Join Date: Dec 2004
Location: Torrejón de Ardoz
Posts: 839
Likes (Received): 9

nice update and excellent work
__________________
Best of Madrid-Album Thread (+300)


Poll the 7 Spanish classic wonders
jesarm no está en línea   Reply With Quote

Sponsored Links
Old October 2nd, 2005, 07:46 PM   #242
ChiLooper
Da Bears
 
ChiLooper's Avatar
 
Join Date: Aug 2005
Location: Chicago
Posts: 597
Likes (Received): 3

Can't wait to see it when it's done
ChiLooper no está en línea   Reply With Quote
Old October 2nd, 2005, 08:11 PM   #243
SDK4
Florida
 
Join Date: Jul 2004
Location: Sarasota
Posts: 1,292
Likes (Received): 500

Great Pictures. Theres not too many places in this world were you can be above the construction site and be that close.
SDK4 no está en línea   Reply With Quote
Old October 3rd, 2005, 01:32 AM   #244
Open Road
Registered User
 
Join Date: Feb 2005
Posts: 53
Likes (Received): 0

Exactly how does the viaduct fit in with the rest of this project? Great Pics.
__________________
- GDP would be easy to measure if all we consumed was pie... Unfortunately, life is beer and skittles

- Life is what happens when you’re making other plans
Open Road no está en línea   Reply With Quote
Old October 3rd, 2005, 01:44 AM   #245
spyguy
Expert
 
spyguy's Avatar
 
Join Date: Apr 2005
Location: Chicago
Posts: 6,916
Likes (Received): 97

Hope this helps:


The viaduct, which was originally constructed in 1930, will be completely demolished and rebuilt as part of the Trump Tower Chicago development. The $8 million project includes a total deck replacement, street resurfacing and new sidewalks. The project also includes the installation of ornamental streetlights, irrigated landscaped medians and a new traffic signal on Wabash, just north of the bridge. The improvements will benefit motorists, pedestrians and bicyclists who use this roadway.
spyguy no está en línea   Reply With Quote
Old October 3rd, 2005, 11:38 PM   #246
spyguy
Expert
 
spyguy's Avatar
 
Join Date: Apr 2005
Location: Chicago
Posts: 6,916
Likes (Received): 97

Here's a great explanation of what took place a few days ago

Trump's Big Pour
It took 30 trucks 600 trips to make concrete history

By Mike Conklin
Published October 3, 2005

Builders of the Trump Tower, which will be the world's tallest concrete-reinforced building when it's completed in 2009, got serious over the weekend about their concrete.

Really serious.

In what contractors called the "big pour," trucks worked round-the-clock for nearly 24 hours to bring 5,000 cubic yards of concrete to the site and dump it into a single hole called the mat. This steel-reinforced opening that measures 200 feet long, 66 feet wide and 10 feet deep will be a below-ground level anchor for the 92-story building.

Unlike the Sears Tower, Aon Center and Hancock Building, which are all steel-reinforced, the Trump Tower is using concrete because there is less room available on the site for the foundation. Without the concrete mat, say architects, the structure could never climb as high and still stay as thin.

"This mat is the heart of the building," said McHugh Construction's Dale Hendrix, a 45-year senior vice president -- and veteran in concrete -- who coordinated the pour. "This was a really unique challenge, something you're going to look back on some day and be proud of. I love this."

The Trump Tower has a $600 million construction budget, and the concrete-only portion handled by McHugh will be an estimated $130 million of that total. The building is expected to require 180,000 cubic yards of concrete when it is completed, but at no point, said Hendrix, will anything be as complex as the weekend's big pour.

Highly anticipated by everyone on the Trump project, the big pour kicked off Friday at 12:10 p.m., a few minutes early. As pedestrians above walked by mostly unaware, workers scrambled to witness the convoy's first ready-mix truck -- its huge drum turning -- rumble onto the Lower North Wabash Avenue site.

This was the first of 30 green, orange and white concrete trucks used non-stop by Prairie Material Sales Inc., the Bridgeview-based supplier. Before this marathon of mixing ended late Saturday morning, the fleet would make 600 trips between the company's sprawling distribution site at Chicago Avenue and Halsted Street and the mat. An observer clocked the last delivery at 10:45 a.m.

Prairie, the largest privately owned ready-mix company in the U.S., used two shifts of drivers, and each truck carried up to 9 cubic yards, or slightly more than 1,800 gallons.

"We've had projects where maybe we've taken more concrete to one location -- O'Hare for one, but never with all the specifications like this," said Gerry Krozec, a Prairie vice president. "This [pour] involved things that have never been done in this business."

The sunny yet cool weather was perfect for the pour, which required a special formula for the cement -- the powderlike material mixed with sand, gravel or crushed stone, and water -- to create the concrete. Because this was the first time the formula has been used, chemists were on hand to test the concrete's consistency and temperature throughout the pour in a makeshift laboratory.

Conventional concrete is made to sustain weight at 7,000 pounds, or less, per square inch (psi). For the Trump Tower mat, where it will have to support the building's 360,000-ton bulk, it was specially mixed for 10,000 pounds psi, according to Krozec. This was done by making a concrete mix that was cooler and thicker than normal.

High-powered, portable lights ringed the pour as it continued through the night. McHugh and Prairie workers used suites booked at the Hotel 71, just across the Chicago River from the site, to catch a few winks during the long hours of work.

The fleet of Prairie trucks assembled four hours before their scheduled 12:30 p.m. site arrival at Prairie's distribution center, where they were gassed, warmed up and filled with concrete.

Their route, a five-mile round trip, took them east on Chicago Avenue past the old Montgomery Ward headquarters, under elevated tracks, past Moody Bible Institute and south on Clark Street, where they turned east on Kinzie Street to continue eastward into the street's lower level and onto the site.

On the return, Hendrix was careful to have the trucks go east on Kinzie to Lower Michigan Avenue, where they turned north and worked their way back to the Prairie premises to reload via Grand Avenue and Dearborn Street.

"It would've been closer, and probably easier to maneuver, if they'd used Rush Street instead of Lower Michigan," he said, "but that would've taken them within a few feet of an outdoor restaurant [Phil Stefani's 437 Rush] while everyone was eating. That's a trick you learn in this business."

When the Prairie drivers arrived at the Trump site, they proceeded to one of two points ringing the mat. They dumped the concrete on conveyor belts that could carry as much as 170 yards per hour.

Then McHugh workers spread the material across the mat opening and, when the pour was complete, covered it with protective sheets of Styrofoam and plywood purchased for this one-time use. They will remain in place for at least a month.

There still is plenty to be poured -- 5,000 yards of concrete is a small percentage of the 180,000 total to be used in the project. But now that the mat is complete, the concrete will flow on a floor-by-floor basis. It will take a custom-built pump imported from Germany to handle the job on the high-rise's uppermost levels.

"Some of our pumps would have to struggle to get it that high," said Hendrix. "That won't be a problem with this new one."

According to Emporis, a construction research database service, the tallest concrete building in the world now is CITIC Plaza in Guangzhou, China, which is 80 floors.

Chicago has seen its share of record-holders: the 64-story Two Prudential Plaza, completed in 1990, was the world's tallest reinforced concrete building until it was supplanted by the 65-story building at 311 South Wacker Drive completed the same year.

Decades earlier, Marina City, just a block from Trump Tower, held the title as the world's tallest concrete-reinforced structure. The two distinctive 60-story towers were a four-year project completed in 1964 -- and Marina City was the first job Hendrix worked in construction.

- - -

By the numbers

5,000 cubic yards of concrete poured for the mat

180,000 cubic yards of concrete to be used in total

30 trucks carried the concrete to the site

7,000 pounds per square inch is the strength of conventional concrete

10,000 pounds per square inch is the strength of the concrete for this mat
spyguy no está en línea   Reply With Quote
Old October 4th, 2005, 03:49 AM   #247
mtb_nz
Wellington user
 
Join Date: Mar 2005
Location: Wellington, NZ
Posts: 803
Likes (Received): 8

awesome updates there people... damn thats a huge amount of concrete being poured
mtb_nz no está en línea   Reply With Quote
Old October 6th, 2005, 12:20 AM   #248
spyguy
Expert
 
spyguy's Avatar
 
Join Date: Apr 2005
Location: Chicago
Posts: 6,916
Likes (Received): 97

October 3, 2005

From BVictor:

Steel rebar rising for the eventual formation of columns - 2005-10-3


Formwork being positioned on the recently completed mat foundation - 2005-10-3


Lowering a steel rebar cage into place that will eventually become part of a column - 2005-10-3
spyguy no está en línea   Reply With Quote
Old October 6th, 2005, 01:54 AM   #249
firulais2005
Registered User
 
firulais2005's Avatar
 
Join Date: Aug 2005
Posts: 220
Likes (Received): 1

GREAT
firulais2005 no está en línea   Reply With Quote
Old October 6th, 2005, 03:34 AM   #250
colemonkee
aimin high. shootin low.
 
Join Date: Jun 2005
Location: Los Angeles
Posts: 445
Likes (Received): 11

So these are the first pictures of the tower rising. May not be even close to ground level, but it is rising...
colemonkee no está en línea   Reply With Quote
Old October 10th, 2005, 11:12 PM   #251
Alle
Registered User
 
Alle's Avatar
 
Join Date: Sep 2005
Location: Göteborg
Posts: 2,337
Likes (Received): 9

Any new reports from the construction site?
__________________
Stop the censorship in the BiH forums

Castles And Fortresses [Alpe Adria] [Bosnia]
Alle no está en línea   Reply With Quote
Old October 11th, 2005, 02:32 AM   #252
spyguy
Expert
 
spyguy's Avatar
 
Join Date: Apr 2005
Location: Chicago
Posts: 6,916
Likes (Received): 97

Hmm...not really to my knowledge. But we'll let you know.
spyguy no está en línea   Reply With Quote
Old October 12th, 2005, 03:58 AM   #253
Open Road
Registered User
 
Join Date: Feb 2005
Posts: 53
Likes (Received): 0

Thanks spyguy, that sorted it out.
__________________
- GDP would be easy to measure if all we consumed was pie... Unfortunately, life is beer and skittles

- Life is what happens when you’re making other plans
Open Road no está en línea   Reply With Quote
Old October 13th, 2005, 12:41 AM   #254
spyguy
Expert
 
spyguy's Avatar
 
Join Date: Apr 2005
Location: Chicago
Posts: 6,916
Likes (Received): 97

Again, from BVictor:

Quote:
Originally Posted by BVictor1
(10/11/05)

Pouring concrete that will help to form the walls of the core - 2005-10-11


View into the construction site - 2005-10-1


Excavating dirt, clay and other debris from the site - 2005-10-11


Iron workers installing and tying steel rebar - 2005-10-11


Excavators digging out more of the site - 2005-10-11


Workers spreading recently delivered gravel - 2005-10-11
spyguy no está en línea   Reply With Quote
Old October 27th, 2005, 02:18 AM   #255
spyguy
Expert
 
spyguy's Avatar
 
Join Date: Apr 2005
Location: Chicago
Posts: 6,916
Likes (Received): 97

Normally I give the honors to Chicago Shawn, but...

It's been a long time w/o an update.

Quote:
Originally Posted by Chicago Shawn
Thursday 10-20-2005:





From the 36th floor of IBM Plaza, Friday 10-21-2005:


Water chiller intakes:



Bonus, how can anyone in IBM Plaza get any work done with views like these:

spyguy no está en línea   Reply With Quote
Old October 27th, 2005, 03:03 AM   #256
Azn_chi_boi
BANNED
 
Azn_chi_boi's Avatar
 
Join Date: Mar 2005
Location: Bridgeport + Chinatown, Chicago
Posts: 4,218
Likes (Received): 12

update is looking good! Especially the bonus!
Azn_chi_boi no está en línea   Reply With Quote
Old October 27th, 2005, 12:00 PM   #257
Mosaic
BANGKOK
 
Mosaic's Avatar
 
Join Date: Feb 2005
Location: Bangkok
Posts: 13,302
Likes (Received): 757

Oh! A lot progress.
Mosaic no está en línea   Reply With Quote
Old October 30th, 2005, 01:51 AM   #258
SDK4
Florida
 
Join Date: Jul 2004
Location: Sarasota
Posts: 1,292
Likes (Received): 500

Wow!, what I would do to have a view like that.
SDK4 no está en línea   Reply With Quote
Old October 31st, 2005, 05:46 AM   #259
everythingisone
Registered User
 
everythingisone's Avatar
 
Join Date: Sep 2002
Posts: 332
Likes (Received): 0

Chicago has a nice feel to it. It carries itself nicely. It doesn't feel over crowded, yet it's not empty and waiting to be filled in either.
__________________
What happened, happened. Everything else is interpretation.
everythingisone no está en línea   Reply With Quote
Old October 31st, 2005, 06:58 PM   #260
zerokarma
Registered User
 
Join Date: May 2005
Location: Toronto
Posts: 1,511
Likes (Received): 12

Looks like it is progressing along nicely
__________________
.... Trump Tower Toronto .............. Costa Rica Photos 1, Costa Rica Photos 2
.... if you build it they will come ........ St. Martin/St. Maarten Photos, Aruba Photos
.... www.trumptowertoronto.com ....... St. Lucia Photos, My Complete Photo Album
zerokarma no está en línea   Reply With Quote


Reply

Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Related topics on SkyscraperCity


All times are GMT +2. The time now is 08:49 AM.


Powered by vBulletin® Version 3.8.11 Beta 4
Copyright ©2000 - 2017, vBulletin Solutions Inc.
Feedback Buttons provided by Advanced Post Thanks / Like (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.

vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.

SkyscraperCity ☆ In Urbanity We trust ☆ about us | privacy policy | DMCA policy

Hosted by Blacksun, dedicated to this site too!
Forum server management by DaiTengu