www.sefindia.org

STRUCTURAL ENGINEERING FORUM OF INDIA [SEFI]

 Forum SubscriptionsSubscriptions DigestDigest Preferences   FAQFAQ   SearchSearch   MemberlistMemberlist   UsergroupsUsergroups  RegisterRegister FAQSecurity Tips FAQDonate
 ProfileProfile   Log in to check your private messagesLog in to check your private messages   Log in to websiteLog in to websiteLog in to websiteLog in to forum 
Warning: Make sure you scan the downloaded attachment with updated antivirus tools  before opening them. They may contain viruses.
Use online scanners
here and here to upload downloaded attachment to check for safety.

pile cap design

 
This forum is locked: you cannot post, reply to, or edit topics.This topic is locked: you cannot edit posts or make replies.    www.sefindia.org Forum Index -> Past Discussions Year 2004
View previous topic :: View next topic  
Author Message
manish_del
SEFI Member
SEFI Member


Joined: 26 Jan 2003
Posts: 10

PostPosted: Thu Dec 09, 2004 7:46 am    Post subject: pile cap design Reply with quote

Dear Sefians,

I have to design foundation for large oil storage tank. As the area is
on reclaimed soil, pile foundations are suggested. How is the pile cap
designed in such cases where there is uniformly distributed pressure as
load? Any references for design of same? Any information will be
appreciated.

Thanks,

Manish Shah.

Posted via Email
Back to top
View user's profile Send private message
manish_del
SEFI Member
SEFI Member


Joined: 26 Jan 2003
Posts: 10

PostPosted: Fri Dec 10, 2004 1:47 pm    Post subject: pile cap design Reply with quote

Dear Mr.Barua,
Thanks for your reply. But when there is uniform pressure load due to
tank, how to model the strut-tie? Also, normally, shear is checked at
distance d/2 from column face. As there is no column here, how is check
for shear done?

Regards,

Manish Shah.

-----Original Message-----
Message From  ibarua@deguild.com [mailto:ibarua@deguild.com]
Sent: Friday, December 10, 2004 8:23 AM
To: manish_del@hotmail.com
Subject: Daily Digest Thu Dec 9 23:00:02 2004



10 December 2004

Re.: Pile Cap design
---------------

Pile caps are generally analysed without taking into account any
contribution of the soil below, as such soils, mostly backfilled soil,
sometimes on reclaimed ground, may settle considerably, thereby
transferring whatever load that the soil might have sustained to the
piles. The design is best done with the help of strut-tie-modeling
(STM)technique.

Indrajit Barua.

Posted via Email
Back to top
View user's profile Send private message
Rudra Nevatia
...
...


Joined: 26 Jan 2003
Posts: 207
Location: Mumbai

PostPosted: Sat Dec 11, 2004 8:35 am    Post subject: pile cap design Reply with quote

Dear Manish,

Has the Geotechnical Engineer suggested piles all over
or just below the tank wall?

The normal practice is to provide a ring wall below
the the annular plate to carry dead/live/wind/seismic
loads. This ring wall also acts as a retaining wall
for the soil inside thereby increasing load carrying
capacity of the confined soil.

Rudra Nevatia


--- manish_del@hotmail.com wrote:

Quote:


Dear Sefians,

I have to design foundation for large oil storage
tank. As the area is
on reclaimed soil, pile foundations are suggested.
How is the pile cap
designed in such cases where there is uniformly
distributed pressure as
load? Any references for design of same? Any
information will be
appreciated.

Thanks,

Manish Shah.













__________________________________________________

Posted via Email
Back to top
View user's profile Send private message
vjkpatil
SEFI Member
SEFI Member


Joined: 26 Jan 2003
Posts: 16

PostPosted: Sat Dec 11, 2004 12:52 pm    Post subject: pile cap design Reply with quote

Tanks are tricky.
The actual load is of the product inside and not the annular walls which is
generally of steel. So it is quite unlikely to suggest piles for ring wall
only because if the product is very heavy the bottom would sink and would
keep doing so and may even go much below the constructed level. It would be
really interesting to know the design of the pile cap as one may have to
design the bottom to be supported on piles only.

Vijay Patil




-------Original Message-------

Message From  general@sefindia.org
Date: 12/11/04 14:13:10
To: vjkpatil@vsnl.com
Subject: pile cap design

Dear Manish,

Has the Geotechnical Engineer suggested piles all over
or just below the tank wall?

The normal practice is to provide a ring wall below
the the annular plate to carry dead/live/wind/seismic
loads. This ring wall also acts as a retaining wall
for the soil inside thereby increasing load carrying
capacity of the confined soil.

Rudra Nevatia


--- manish_del@hotmail.com wrote:

Quote:


Dear Sefians,

I have to design foundation for large oil storage
tank. As the area is
on reclaimed soil, pile foundations are suggested.
How is the pile cap
designed in such cases where there is uniformly
distributed pressure as
load? Any references for design of same? Any
information will be
appreciated.

Thanks,

Manish Shah.













__________________________________________________











com

Posted via Email
Back to top
View user's profile Send private message
Rudra Nevatia
...
...


Joined: 26 Jan 2003
Posts: 207
Location: Mumbai

PostPosted: Sat Dec 11, 2004 1:45 pm    Post subject: pile cap design Reply with quote

Dear Vijay,

Please take a look at

http://tinyurl.com/6nule

http://www.astanks.com/EN/Foundation_EN.html

http://www.geocon.net/pdf/paper42.pdf

Regards,
Rudra Nevatia

--- vjkpatil@vsnl.com wrote:

Quote:


Tanks are tricky.
The actual load is of the product inside and not the
annular walls which is
generally of steel. So it is quite unlikely to
suggest piles for ring wall
only because if the product is very heavy the bottom
would sink and would
keep doing so and may even go much below the
constructed level. It would be
really interesting to know the design of the pile
cap as one may have to
design the bottom to be supported on piles only.

Vijay Patil




-------Original Message-------

Message From  general@sefindia.org
Date: 12/11/04 14:13:10
To: vjkpatil@vsnl.com
Subject: pile cap design

Dear Manish,

Has the Geotechnical Engineer suggested piles all
over
or just below the tank wall?

The normal practice is to provide a ring wall below
the the annular plate to carry
dead/live/wind/seismic
loads. This ring wall also acts as a retaining wall
for the soil inside thereby increasing load carrying
capacity of the confined soil.

Rudra Nevatia


--- manish_del@hotmail.com wrote:



Dear Sefians,

I have to design foundation for large oil storage
tank. As the area is
on reclaimed soil, pile foundations are suggested.
How is the pile cap
designed in such cases where there is uniformly
distributed pressure as
load? Any references for design of same? Any
information will be
appreciated.

Thanks,

Manish Shah.













__________________________________________________

Tired of spam?  Yahoo! Mail has the best spam
protection around












com















__________________________________________________

Posted via Email
Back to top
View user's profile Send private message
Display posts from previous:   
This forum is locked: you cannot post, reply to, or edit topics.This topic is locked: you cannot edit posts or make replies.    www.sefindia.org Forum Index -> Past Discussions Year 2004 All times are GMT
Page 1 of 1

 

 
Jump to:  
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
You can attach files in this forum
You can download files in this forum


© 2003, 2008 SEFINDIA, Indian Domain Registration
Publishing or acceptance of an advertisement is neither a guarantee nor endorsement of the advertiser's product or service. advertisement policy