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.

Expansion joint in steel roof

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


Joined: 24 Sep 2017
Posts: 1

PostPosted: Sat Jun 01, 2019 4:36 am    Post subject: Expansion joint in steel roof Reply with quote

Hi Sefians!

I have a case,

I'm designing a steel roof structure of 165m. braced bays are provided.
As per IS 800-2007, if we are going multiple braces we shall go
upto 230m without any expansion joint.
hence I'm satisfying that case. My query case the below three concrete
floors is having expansion joint at 90m and construction also will be two
stages. Is it necessary to follow the expansion joints as provided in the
concrete floors.
Please advise.

Regards
Murali
Back to top
View user's profile Send private message
spsvasan
...
...


Joined: 18 Dec 2008
Posts: 327

PostPosted: Sat Jun 08, 2019 3:19 am    Post subject: Re: Expansion joint in steel roof Reply with quote

MMuraliCEG wrote:
Hi Sefians!

I have a case,

I'm designing a steel roof structure of 165m. braced bays are provided.
As per IS 800-2007, if we are going multiple braces we shall go
upto 230m without any expansion joint.
hence I'm satisfying that case. My query case the below three concrete
floors is having expansion joint at 90m and construction also will be two
stages. Is it necessary to follow the expansion joints as provided in the
concrete floors.
Please advise.

Regards
Murali



Dear Er.Murali

The width of the expansion joint in the building below will vary with the seasons. Hence I feel that it is better to continue with the expansion joint in the steel structure also

S.P.Srinivasan
Back to top
View user's profile Send private message
mandeep_singh_kohli
SEFI Member
SEFI Member


Joined: 29 May 2019
Posts: 11

PostPosted: Tue Jun 11, 2019 12:18 pm    Post subject: Re: Expansion joint in steel roof Reply with quote

Can you show a Figure ?
How many Brace bays do you have in one direction, if you only have a single bay at the center, then you dont need expansion joint.
If you have multiple braced bays at some distance apart, then it will be the brace bays location which will be the deciding factor, Keep them independent. Your load should transfer to one braced bay and the next braced bay should be a slotted connection to the first so as to keep the load path short and simple. i.e if you have braced  bys after every 60mt, then you need a slotted connection after every 60mt. So that the load for first 60mt flows to first braced bay, second to second and so forth.



MMuraliCEG wrote:
Hi Sefians!

I have a case,

I'm designing a steel roof structure of 165m. braced bays are provided.
As per IS 800-2007, if we are going multiple braces we shall go
upto 230m without any expansion joint.
hence I'm satisfying that case. My query case the below three concrete
floors is having expansion joint at 90m and construction also will be two
stages. Is it necessary to follow the expansion joints as provided in the
concrete floors.
Please advise.

Regards
Murali
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