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.

blast load
Goto page 1, 2  Next
 
Post new topicReply to topic Thank Post    www.sefindia.org Forum Index -> SEFI General Discussion
View previous topic :: View next topic  
Author Message
kedarkhapare
SEFI Member
SEFI Member


Joined: 11 Nov 2009
Posts: 2

PostPosted: Wed Nov 11, 2009 7:30 am    Post subject: blast load Reply with quote

Presently i am working on blast load analysis on building.So i need to know how to apply the blast load through time-history in Staad-pro.
Back to top
View user's profile Send private message
scpatel_74
General Sponsor
General Sponsor


Joined: 10 Apr 2008
Posts: 23

PostPosted: Fri Nov 13, 2009 3:29 am    Post subject: blast load Reply with quote

Kindly refer book on ‘Structural dynamics’ by J M Biggs…

Thanks and Regards
Sanjay Patel



From: kedarkhapare [mailto:forum@sefindia.org]
Sent: Wednesday, November 11, 2009 1:01 PM
To: general@sefindia.org
Subject: [SEFI] blast load


Presently i am working on blast load analysis on building.So i need to know how to apply the blast load through time-history in Staad-pro.

Posted via Email
Back to top
View user's profile Send private message
Yogesh.Pisal
General Sponsor
General Sponsor


Joined: 18 May 2008
Posts: 406

PostPosted: Fri Nov 13, 2009 5:34 am    Post subject: Reply with quote

Dear Er Kedar,

It is not possible to apply time history for blast load on building in STAADpro.

Refer ASME Manual on Blast resistant design for chemical facilities.

Generally, force path for the blast load is as follows
1. Front wall will distribute the load to top slab and bottom slab / foundation
2. Top slab will resist the force transferred by front wall by rigid diaphragm action. Top slab will transfer this in plane force to the side wall.
3. Side wall will resist these forces by shear wall aciton.
4. Then it will be transferred to the foundation.
This force path is very difficult to simulate in STAADpro.

Non linear time history analysis for the blast load can be carried out manually (using EXCEL) by using simplified SDOF model for the walls and roofs (Refer Introduction to Structural Dynamics by Biggs)

If you want use the software, then you need to go for the advanced softwares like ANSYS.

Regards,
Yogesh Pisal
Back to top
View user's profile Send private message
revanwaghode
Bronze Sponsor
Bronze Sponsor


Joined: 26 Jan 2003
Posts: 124
Location: Pune

PostPosted: Fri Nov 13, 2009 1:51 pm    Post subject: blast load Reply with quote

Dear Kedar,
I have not applied blast loading.....but I guess we can take blast load equal to part of seismic load..
Seniors can guide you more on this.However I am attaching one article which i had download from collection of Er T. Rangarajan sir from SEFI only.It may help you in some way.
 
Regards
Abhay
On Fri, Nov 13, 2009 at 10:06 AM, scpatel_74 <forum@sefindia.org (forum@sefindia.org)> wrote:

Quote:
  Kindly refer book on ‘Structural dynamics’ by J M Biggs…

Thanks and Regards
Sanjay Patel



From: kedarkhapare [mailto:forum@sefindia.org (forum@sefindia.org)]
Sent: Wednesday, November 11, 2009 1:01 PM
To: general@sefindia.org (general@sefindia.org)
Subject: [SEFI] blast load



Presently i am working on blast load analysis on building.So i need to know how to apply the blast load through time-history in Staad-pro.











Posted via Email



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.
BLAST_RESISTANT_DESIGN_OF_RC_STRUCTURES.pdf
 Description:

Download
 Filename:  BLAST_RESISTANT_DESIGN_OF_RC_STRUCTURES.pdf
 Filesize:  327.22 KB
 Downloaded:  1291 Time(s)

Back to top
View user's profile Send private message Visit poster's website
vicky43singh
SEFI Member
SEFI Member


Joined: 13 Jan 2012
Posts: 6
Location: Navi Mumbai

PostPosted: Sun Feb 15, 2015 5:24 pm    Post subject: Re: blast load Reply with quote

Hey can you help me in blast loading topic???
kedarkhapare wrote:
Presently i am working on blast load analysis on building.So i need to know how to apply the blast load through time-history in Staad-pro.
Back to top
View user's profile Send private message
Yogesh.Pisal
General Sponsor
General Sponsor


Joined: 18 May 2008
Posts: 406

PostPosted: Mon Feb 16, 2015 4:08 am    Post subject: Reply with quote

Dear Er Vicky,

You can refer to ASCE Manual to Blast Resistant Design which is basic document in this area.

Best Regards,
Yogesh Pisal
Back to top
View user's profile Send private message
Gokul_V
SEFI Member
SEFI Member


Joined: 25 Sep 2019
Posts: 2

PostPosted: Wed Sep 25, 2019 9:41 am    Post subject: Blast Analysis Regarding Reply with quote

Anyone with the knowledge of Blast analysis Using ETABS and LS-DYNA please help with Legitimate, Understandable and Usefull References, as i'm Doing my M.Tech Master's Thesis on Blast Loading.
Thanks in Advance.

Regards,
Gokul V.
Back to top
View user's profile Send private message
kiranklk
SEFI Regulars
SEFI Regulars


Joined: 26 Dec 2010
Posts: 34
Location: Banglore

PostPosted: Thu Sep 26, 2019 9:57 am    Post subject: Blast Load Analysis Reply with quote

We have done blast load analysis using ETABS. Blast load pressure calculated manually & ATBlast software. Blast Pressure is applied as pressure history function in ETABS & performed NTH analysis.

Blast load calculations are carried out as per the procedures outlined in section 5 of TM5 – 1300. The blast loads are distributed on all the structural elements on the front face as well as right face of the building. Following procedures and TM 5-1300 charts, software named ATBlast was developed by ARA (applied research associates) which calculates blast loads for given values of charge weights and standoff distances. This software calculates blast load dynamic parameters like shock front velocity, impulse, duration and time of arrival.

You can also refer:
Hand Book for Blast Resistance Design of Buildings
By Donald O Dusenberry

Link to our journal:
https://www.irjet.net/archives/V3/i8/IRJET-V3I8363.pdf

All the best.



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.
BLAST_RESISTANT_DESIGN_OF_RC_STRUCTURES.pdf
 Description:

Download
 Filename:  BLAST_RESISTANT_DESIGN_OF_RC_STRUCTURES.pdf
 Filesize:  327.22 KB
 Downloaded:  23 Time(s)

Back to top
View user's profile Send private message Visit poster's website
Gokul_V
SEFI Member
SEFI Member


Joined: 25 Sep 2019
Posts: 2

PostPosted: Thu Sep 26, 2019 12:30 pm    Post subject: Re: Blast Load Analysis Reply with quote

kiranklk wrote:
We have done blast load analysis using ETABS. Blast load pressure calculated manually & ATBlast software. Blast Pressure is applied as pressure history function in ETABS & performed NTH analysis.

Blast load calculations are carried out as per the procedures outlined in section 5 of TM5 – 1300. The blast loads are distributed on all the structural elements on the front face as well as right face of the building. Following procedures and TM 5-1300 charts, software named ATBlast was developed by ARA (applied research associates) which calculates blast loads for given values of charge weights and standoff distances. This software calculates blast load dynamic parameters like shock front velocity, impulse, duration and time of arrival.

You can also refer:
Hand Book for Blast Resistance Design of Buildings
By Donald O Dusenberry

Link to our journal:
https://www.irjet.net/archives/V3/i8/IRJET-V3I8363.pdf

All the best.


Dear Kiranklk,

Thank you for the Info. I have already studied your work using ATblast, it was very useful.
It would be very helpful if anyone can help me with LS-DYNA and regarding the software ATBLAST, is the software free or Can i get a student license ?
Back to top
View user's profile Send private message
abhio
...
...


Joined: 08 Mar 2010
Posts: 518

PostPosted: Tue Oct 01, 2019 10:12 am    Post subject: Reply with quote

Yogesh.Pisal wrote:

It is not possible to apply time history for blast load on building in STAADpro.





Dear Er Pisal,

I had done blast loading in STAAD using time history of nodal forces. Perhaps this would be adequate?
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
Goto page 1, 2  Next
Page 1 of 2

 

 
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