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  #81  
Old Posted Nov 16, 2014, 7:24 PM
edluva edluva is offline
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thanks for the updates, but it looks like nothing has changed since february
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  #82  
Old Posted Nov 16, 2014, 10:45 PM
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Because they use top-down construction method for basement. The basement is RC structure and superstructure is S structure.

Last edited by williamchung taiwan; Nov 17, 2014 at 6:59 AM.
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  #83  
Old Posted Nov 17, 2014, 6:33 AM
kalifese kalifese is offline
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can you explain in english, williamchung
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  #84  
Old Posted Nov 18, 2014, 2:38 PM
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Quote:
Originally Posted by kalifese View Post
can you explain in english, williamchung
Normally, we build basement from underground to ground level. Top down construction is oppsite way. It basically build basement from ground level to underground. Engineer needs to stable underground soil by building retaining wall along the site. And then, workers will start building basement by excavate upper soil, and building beam, column and slab from top to bottom.This method is usually used in site that crowed by surrounding buildings, which open cut method could caused serious structural failure to adjacent buildings.

Some factors for choosing top down construction:
Lateral force of soil is uneven in this site
Foundation needs very deep excavation
Reduce schedule

Last edited by williamchung taiwan; Nov 18, 2014 at 2:49 PM.
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  #85  
Old Posted Nov 19, 2014, 12:07 AM
kalifese kalifese is offline
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thank you, i understand now. that explains why every construction pic i see of high rise buildings being built in taiwan have no big deep hole with built structure in the ground.

but why is it in nyc/manhattan - which is a highly dense area of skyscrapers and highrises - they build bottom-up? i always see construction workers excavating a huge deep hole where they start the foundation and build the skeletal structure in and above it?
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  #86  
Old Posted Nov 19, 2014, 5:31 AM
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Quote:
Originally Posted by kalifese View Post
thank you, i understand now. that explains why every construction pic i see of high rise buildings being built in taiwan have no big deep hole with built structure in the ground.

but why is it in nyc/manhattan - which is a highly dense area of skyscrapers and highrises - they build bottom-up? i always see construction workers excavating a huge deep hole where they start the foundation and build the skeletal structure in and above it?
geology

The underground soil of Taipei city is formed by clay layer and mud. It is very unstable soil.
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  #87  
Old Posted Nov 19, 2014, 10:23 PM
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oh right. yes manhattan is built on solid bedrock. i remember reading about it.
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  #88  
Old Posted Nov 21, 2014, 8:13 AM
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Pretty exciting, always wanted Taipei 101 to have more taller buildings around it. Thanks for keeping us posted!
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  #89  
Old Posted Dec 17, 2014, 6:56 PM
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taken by me
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  #90  
Old Posted Jan 29, 2015, 10:20 AM
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taiwan-city forum
LED
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  #91  
Old Posted Jan 30, 2015, 9:39 PM
kalifese kalifese is offline
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Originally Posted by williamchung taiwan View Post






taiwan-city forum
led

amazing!!!
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  #92  
Old Posted Mar 1, 2015, 4:37 PM
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taiwan-city forum
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  #93  
Old Posted Mar 2, 2015, 11:47 PM
kalifese kalifese is offline
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is it topped out yet?
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  #94  
Old Posted Mar 16, 2015, 9:49 AM
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is it topped out yet?
lololol
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  #95  
Old Posted Mar 27, 2015, 8:55 AM
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lololol
What's so funny??
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  #96  
Old Posted Apr 6, 2015, 9:08 AM
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  #97  
Old Posted Apr 6, 2015, 9:09 AM
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They start to dig out soil from site, top down construction resume.
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  #98  
Old Posted Apr 11, 2015, 2:35 PM
kalifese kalifese is offline
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where are they digging out the soil? everything is already covered up.
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  #99  
Old Posted Apr 11, 2015, 11:06 PM
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Quote:
Originally Posted by kalifese View Post
where are they digging out the soil? everything is already covered up.
Because they have to, they have finished retaining wall and structural column for basement and foundation.
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  #100  
Old Posted Apr 25, 2015, 7:21 AM
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Quote:
Originally Posted by williamchung taiwan View Post
Because they have to, they have finished retaining wall and structural column for basement and foundation.








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