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.

Issue in footing

 
Post new topicReply to topic Thank Post    www.sefindia.org Forum Index -> Speak Out Box
View previous topic :: View next topic  
Author Message
Homi88
SEFI Member
SEFI Member


Joined: 18 Dec 2016
Posts: 8

PostPosted: Sun Dec 18, 2016 9:18 am    Post subject: Issue in footing Reply with quote

hey engineers
what is the meaning of clear cover of footing is 75mm (B) and 50 mm (S&T) ?

And what is flex board 20mm thinkness provided in b/w ?

And what is the best way to put the shuttring for pcc footing in the the right places as in drawings without the total station
Back to top
View user's profile Send private message
suraj
General Sponsor
General Sponsor


Joined: 17 Apr 2008
Posts: 1981
Location: NCR Faridabad, E mail suraj_engineer@yahoo.co.uk

PostPosted: Mon Dec 19, 2016 6:09 am    Post subject: Footings Reply with quote

Dear it is your 1st post, but should have been posted in General Discussions
It is engineering related question


what is the
meaning of clear cover of footing is 75mm (B) and 50 mm (S&T) ?
B stands for below footing re-bar mesh clear cover S stands for side, T stands for top of footing


And what is flex board 20mm thinkness provided in b/w ?

Flex boards is a bituminous compressed board used to protect water proofing/ concrete protection from soil membrane, where concrete remains in contact with soil

And what is the best way to put the shuttering for pcc footing in the the right places as in drawings without the total station

Make 'setting outs' of footings on blinding concrete or so called lean concrete & erect form sides


                                                  


Powered by phpBB 2001, 2005 phpBB Group
Back to top
View user's profile Send private message Visit poster's website
biswashree10
General Sponsor
General Sponsor


Joined: 21 Dec 2009
Posts: 18

PostPosted: Mon Dec 19, 2016 1:49 pm    Post subject: Footing Issue Reply with quote

Hi Homi,

Good evening !!

a) I think you have not gone through the design of concrete structure subject in your semester. It is the clear distance between face of reinforcement to face of concrete edge on which part it is to be provided. Such as here you have mentioned 75mm (B) : It will be 75mm clear distance from the bottom of reinforcement upto the bottom face of the concrete in the footing.

b) When 2 footings are placed least adjacent to each other, a clear 25 mm or a paper gap to be maintained in between (Refer "in b/W") them, to avoid combining the footings in to 1 footing. (20mm flex board to be provided in b/w).

for your 3rd query ; It the basic thing we have learned in Survey-2 book, kindly refer to the building layout part. Also as it is a site activity which needs the experience to do this type of job. So it will be better to keep a close watch to the construction foreman's / supervisor's activity during layout of building as a beginner. There would be many way we can put the footing in the right place without using Total Station. So please make your homework before asking any query in future.

For Example :-
Step - 1 - First do the building outline in site.
Step - 2- then mark the both the grid as per Column / footing layout. Step-3- then locate the crossing of the X & Y Grid for different footing in various grids.
Step-4 - then mark the footing size on both side with the white lime by keeping the grid crossing point as centre of the footing

Again most important in this forum is that, you to be very humble and respect full to other members by not using this type of address in future. "HEY ENGINEERS".

This type of language shall not be used by you as beginner in this forum. Do not take this wrongly, because I am also like a friend of yours & it is my humble request only. However, this is a forum of "Structural Engineering Forum of India".

Many elder members in this forum are written our text books also, those probably we have been through in our semesters during the engineering studies. So please keep this in mind that whom you are addressing and how in manner.

Regards

Biswajit Sahoo
Back to top
View user's profile Send private message
BVRAO
General Sponsor
General Sponsor


Joined: 21 Sep 2009
Posts: 38

PostPosted: Mon Dec 19, 2016 4:59 pm    Post subject: Re: Footing Issue Reply with quote

[quote="biswashree10"]Hi Homi,


Good analysis  keep it up - BVRAO
Back to top
View user's profile Send private message
Homi88
SEFI Member
SEFI Member


Joined: 18 Dec 2016
Posts: 8

PostPosted: Tue Dec 20, 2016 6:54 pm    Post subject: Re: Footing Issue Reply with quote

Thanx for detailed reply biswashree i know what is cc cover i just was confused about the letters wherevit referred to and take my advice take it easy and dont be like a microscope in ur life
Peace

biswashree10 wrote:
Hi Homi,

Good evening !!

a) I think you have not gone through the design of concrete structure subject in your semester. It is the clear distance between face of reinforcement to face of concrete edge on which part it is to be provided. Such as here you have mentioned 75mm (B) : It will be 75mm clear distance from the bottom of reinforcement upto the bottom face of the concrete in the footing.

b) When 2 footings are placed least adjacent to each other, a clear 25 mm or a paper gap to be maintained in between (Refer "in b/W") them, to avoid combining the footings in to 1 footing. (20mm flex board to be provided in b/w).

for your 3rd query ; It the basic thing we have learned in Survey-2 book, kindly refer to the building layout part. Also as it is a site activity which needs the experience to do this type of job. So it will be better to keep a close watch to the construction foreman's / supervisor's activity during layout of building as a beginner. There would be many way we can put the footing in the right place without using Total Station. So please make your homework before asking any query in future.

For Example :-
Step - 1 - First do the building outline in site.
Step - 2- then mark the both the grid as per Column / footing layout. Step-3- then locate the crossing of the X & Y Grid for different footing in various grids.
Step-4 - then mark the footing size on both side with the white lime by keeping the grid crossing point as centre of the footing

Again most important in this forum is that, you to be very humble and respect full to other members by not using this type of address in future. "HEY ENGINEERS".

This type of language shall not be used by you as beginner in this forum. Do not take this wrongly, because I am also like a friend of yours & it is my humble request only. However, this is a forum of "Structural Engineering Forum of India".

Many elder members in this forum are written our text books also, those probably we have been through in our semesters during the engineering studies. So please keep this in mind that whom you are addressing and how in manner.

Regards

Biswajit Sahoo
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 -> Speak Out Box 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