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.

HARD STRATA AT DIFFERENT LEVEL

 
Post new topicReply to topic Thank Post    www.sefindia.org Forum Index -> SEFI General Discussion
View previous topic :: View next topic  
Author Message
nikhil.patelwsm
General Sponsor
General Sponsor


Joined: 21 Jul 2013
Posts: 30

PostPosted: Thu Feb 16, 2023 11:01 am    Post subject: HARD STRATA AT DIFFERENT LEVEL Reply with quote

DEAR SEFIANS,

I AM FACING PROBLEM WITH ONE OF MY PROJECT PLOT SIZE IS 26MX47M, COMMERCIAL BUILDING FOR G+4 STOREY SITE IS NOT IN HILLY AREA,  AS PER SOIL REPORT SBC AT 3.5M IS 55 TON/SQM EXCAVATION OF WHOLE PLOT IS DONE AND FOR 8M LEGTH PLOT WE ARE GETTING HARD STRATA AT 3.9M , FOR 25M PLOT WE ARE GEETING HARD STARTA AT 4.5M, FOR REMAINING 4M PLOT WE ARE GEETING HARD STRATA AT 6M. WE HAVE DESIGN ISOLATED FOOTING FOR 4M DEPTH, I HAVE TO REVISED FOR 6M HEIGHT BY PROVIND TIE BEAM AT 3M BELOW GL.
MY DOUBT IS
1) LEVEL DIFFERENCE OF HARD STRATA IS HUGE FOR FOOTING BOTTOM LVL.
2) MINIMUM LVL DIFFERENCE WE CAN KEEP FOR FOOTING BOTTOM LVL.

KINDLY GUIDE ME AND REQUEST ALL SEFIANS (SENIOR PEOFESSIONALS) TO GIVE AN STRUCTURAL SOLUTION.



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.
D-Model.pdf
 Description:

Download
 Filename:  D-Model.pdf
 Filesize:  75.39 KB
 Downloaded:  184 Time(s)

Back to top
View user's profile Send private message
vikram.jeet
General Sponsor
General Sponsor


Joined: 26 Jan 2003
Posts: 3852

PostPosted: Thu Feb 16, 2023 11:32 am    Post subject: Reply with quote

As per actual strata status described by you :
8m length Hard strata at 3.9m depth
25m length harf strata at 4.5m depth
Remaining 4.0m  length hard strata at 6.0m

The founding level of all columns (except those in 6.0m depth zone) shall be taken as 4.5 m
Only those column footings be taken deep  falling in 6.0 m depth zone,,,

Since design is based on 4.0m depth,  it may not alter moments much,, but for 6.0m  depth,, tie beams to be introduced,,
Back to top
View user's profile Send private message
Display posts from previous:   
Post new topicReply to topic Thank Post    www.sefindia.org Forum Index -> SEFI General Discussion 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 cannot 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