SAN FRANCISCO | Salesforce Tower | 1,070 FT (326 M) | 61 floors - Page 56

fimiak · #**1101** Posted **Nov 7, 2015, 6:35 PM**

This intersection now feels epic at night.

SFSkyline · #**1102** Posted **Nov 8, 2015, 6:11 AM**

Looks like the mat pour began at about 9:45 pm November 7!

pseudolus · #**1103** Posted **Nov 8, 2015, 6:12 AM**

Quote:

Originally Posted by rocketman_95046

Well from David's pic we now know that those things were tables for a party...let's hope for concrete this weekend!

Now that the picnic tables have been fully incorporated into the massive foundation project, I can at last feel assured that this tower will indeed rise from that huge hole in the ground.

rocketman_95046 · #**1104** Posted **Nov 8, 2015, 6:22 AM**

Quote:

Originally Posted by SFSkyline

Looks like the mat pour began at about 9:45 pm November 7!

YUP,,, at least Four pumps going strong!!

rocketman_95046 · #**1105** Posted **Nov 8, 2015, 7:08 AM**

Quote:

Originally Posted by rocketman_95046

YUP,,, at least Four pumps going strong!!

Make that 4 pumps on the east side... and 3 more on the west. for a total of 7

botoxic · #**1106** Posted **Nov 8, 2015, 8:14 AM**

Hope they are able to finish before tomorrow morning's rain!

rocketman_95046 · #**1107** Posted **Nov 8, 2015, 3:17 PM**

Quote:

Originally Posted by botoxic

Hope they are able to finish before tomorrow morning's rain!

Looks like there will be second tower crane installed in the upper left hand corner of your pic!

summersm343 · #**1108** Posted **Nov 8, 2015, 4:06 PM**

Quote:

Originally Posted by rocketman_95046

Looks like there will be second tower crane installed in the upper left hand corner of your pic!

Nice spot! Definitely a tower crane base.

rchin · #**1109** Posted **Nov 9, 2015, 1:27 AM**

rchin · #**1110** Posted **Nov 9, 2015, 1:34 AM**

IMG_4079a by RChin, on Flickr

IMG_4084 by RChin, on Flickr

IMG_4083 by RChin, on Flickr

peanut gallery · #**1111** Posted **Nov 9, 2015, 3:28 AM**

^Awesome! That's an impressive array of concrete delivery and pumping in a very tight area. Did they finish today?

SFSkyline · #**1112** Posted **Nov 9, 2015, 6:42 PM**

I wonder how thick the foundation ended up being? I read on Wikipedia that Transamerica is 9 feet thick.

rchin · #**1113** Posted **Nov 10, 2015, 3:42 AM**

Quote:

Originally Posted by SFSkyline

I wonder how thick the foundation ended up being? I read on Wikipedia that Transamerica is 9 feet thick.

"The Salesforce Tower construction design requires that the foundation for the vertical core structure to be placed in one continuous 'monolithic' concrete pour. This has been calculated to be nearly 14,000 cubic yards of concrete with a depth in the core area of 14 ft thick. This will be the second largest continuous placement of concrete in San Francisco since the Pyramid tower in the mid 70's."

rocketman_95046 · #**1114** Posted **Nov 10, 2015, 4:28 AM**

Quote:

Originally Posted by rchin

"The Salesforce Tower construction design requires that the foundation for the vertical core structure to be placed in one continuous 'monolithic' concrete pour. This has been calculated to be nearly 14,000 cubic yards of concrete with a depth in the core area of 14 ft thick. This will be the second largest continuous placement of concrete in San Francisco since the Pyramid tower in the mid 70's."

Thanks for that info and welcome to the forum

viewguysf · #**1115** Posted **Nov 10, 2015, 5:25 AM**

Quote:

Originally Posted by rchin

"The Salesforce Tower construction design requires that the foundation for the vertical core structure to be placed in one continuous 'monolithic' concrete pour. This has been calculated to be nearly 14,000 cubic yards of concrete with a depth in the core area of 14 ft thick. This will be the second largest continuous placement of concrete in San Francisco since the Pyramid tower in the mid 70's."

What was the biggest since the Pyramid? It was at the very beginning of that decade since it was completed in 1972.

peanut gallery · #**1116** Posted **Nov 10, 2015, 6:33 AM**

^Good question. Something BART related? Were any of the Embarcadero Center built on a common foundation that may have been poured at once? Or the Spear Towers? Was a footing for the Bay Bridge re-constructed at some time since the 70s? I'm struggling to think of something that big.

rocketman_95046 · #**1117** Posted **Nov 10, 2015, 7:00 AM**

Quote:

Originally Posted by peanut gallery

^Good question. Something BART related? Were any of the Embarcadero Center built on a common foundation that may have been poured at once? Or the Spear Towers? Was a footing for the Bay Bridge re-constructed at some time since the 70s? I'm struggling to think of something that big.

Maybe AT&T park,,,but my official guess will be Moscone "For both Moscone North and South, the relationship between the largely underground site and the pressures of the water table called for an unusual approach to excavation and foundation work. Nearly 1.2 million cubic yards of earth were excavated from the two 11-acre blocks, followed by pouring a 7-foot thick steel-reinforced concrete mat built to withstand constant ground water pressure.",,,
https://www.moscone.com/press/dev.html

"Only" 7 feet thick... but the area is much larger than just about all other buildings in SF.

edwards · #**1118** Posted **Nov 10, 2015, 7:09 AM**

http://sanfrancisco.cbslocal.com/201...lest-building/

SFSkyline · #**1119** Posted **Nov 10, 2015, 5:36 PM**

From the CBS newscast:

"By January we'll be above the ground, and by the end of 2016 we'll have topped off at 1,070 feet..."

hruski · #**1120** Posted **Nov 10, 2015, 6:32 PM**

Quote:

Originally Posted by SFSkyline

From the CBS newscast:

"By January we'll be above the ground, and by the end of 2016 we'll have topped off at 1,070 feet..."

That is fast.