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Earthquake Engineering Industrial Structures IS Code Structural Engneering

Session 48 : Industrial structures | IS 1893 (Part 4):2015

INTRODUCTION

LIVE TECHNICAL DISCUSSION SERIES

Industrial structures are highly irregular to meet the functional requirements and hence they are vulnerable to the seismic events. For earthquake resistant design of industrial structures, IS 1893 (Part 4) : 2015 needs to be followed. Around 2021, the revised draft code was circulated by BIS. However, the updated code has not been issued yet.

We have received numbers of request from engineers to conduct live technical discussion related to earthquake resistant design of industrial structures based on IS 1893 (Part 4):2015. Accordingly, the live discussion is arranged as follows:

The session will be conducted by Bhavin Shah (Founder & CEO, SQVe Consultants).

Please share the queries / discussion points related to IS 1893 (Part 4) in the following registration form. It would help us to structure the discussion.

The event is sponsored by Sanghi Cement.

Schedule

DATE : 30-SEP-22

TIME : 4:00 PM TO 5:30 PM IST

HOW TO REGISTER FOR THE EVENT?

Registration is FREE.

Please share the queries / discussion points related to IS 1893 (Part 4) in the following registration form. It would help us to structure the discussion.

STEEL-STR-002 : ONLINE WORKSHOP – Design of connections for steel structures

Learn fundamental and the concepts related to steel connection design based on Eurocode-3, AISC 360-16 & IS 800:2007. Hands-on practice will be organised by installation of RAM connection software in the system of registered participants. The workshop will commence from 3-OCT-22.

For more details, please click here

Feedback of few participants for previous online courses"

Prashanth N

The course STEEL-STR-001 was well planned and the sessions were very interactive and informative.

M. K. Haridharan

In the course ETABS-STR-001, all the session are very interactive, it has a touch with theory, hands on training and practical aspects. The knowledge of the mentor is extraordinary in all aspects.

Ashish Sawant

The course WIND-STR-001 is very informative. It clears basics of overall concept of wind flow. Thanks to Bhavin sir and Gupta sir for your guidance on wind loading.

Harikrishnan

Faculty engineering knowledge is excellent. These course STEEL-STR-001 is useful for fresher and experienced person.

Supriya Pal

I AM A PHD SCHOLAR AND WORKING IN THE FIELD OF WIND STRUCTURE INTERECTION. I GOT A LOT OF MY DOUBTS CLEARED THROUGH THIS COURSE : WIND-STR-002. THANKYOU VERY MUCH

Akshay Thakur

REC-STR-001: The recorded sessions are more than anything for tackling practical difficulties…. and you bring some other professionals like dr. Jain and dr. Gupta is just like awesome experience for the student like me who are from tier-3 college who won’t get such a precious information… thanks to you also for the knowledge you impart… best luck to you and your team for this your initiative to resolve practical difficulties among aspiring structural engineers… 🙏🏻 once again thank you so much… because nobody in today’s era from structural engineering domain is wants to share the information, but you do… kudos!

BHARATENDU PATEL

This course related to STAAD.Pro and case studies was beyond the conventional software training. It helped me conceptualise the idea behind the behaviour of any structure, understand the special requirements between steel and concrete structures. Real life case study and interactive sessions made the learning more impactful.

RATHISH V R

I really enjoyed throughout the journey of the course STEEL-STR-001 wherein I improved by Fundamental Knowledge in the Design of Steel Structures. Bhavin Sir’s explanation on Lateral Torsional Buckling and other critical areas, really helped me to become sound in manual calculations. Keep continuing the good work!

Praveen Upadhyay

Bhavin Shah is a fantastic trainer, very friendly and encouraging, it was a well-delivered and presented course (STAAD-STR-001) that was well received by the group. There was a great balance between theory and practice and the concepts were clearly and professionally explained.

Nitin Sharma

I would like to thanks and appreciate for this helpful course comprising of STAAD PRO Training and Design concepts for RCC and Steel. In this module I have learned in detail about essential concepts for designing industrial buildings and gained an understanding of different types of Analysis. I also acquired the knowledge of different types of Codes. Moreover, l was introduced with FEM, design of foundation, anchor bolts and connections. All the sessions were very interactive and engaging. The valuable knowledge that i have gained in these two months will certainly be propitious to start my career as a structural engineer.

Kamlesh Mehta

In the course WIND-STR-002, I was not able to attend few lectures due to internet connectivity problem. But I have gone through the video lectures provided by Mr. Bhavin shah and it is positive point that any time any where we can watch and update our knowledge.

Anvitha Yadama

It has been an excellent course and given me an in-depth understanding on ETABS and STAAD.Pro software . I feel more confident in my understanding and it helped me complete my major project in my B. Tech course .Thank you for all the support and excellent teaching. During the training program all my queries were answered quickly.

Akash Solanki

STEEL-STR-001 was the best package for understanding the limit state design of steel structures using IS800:2007 along with its application in STAAD.Pro. Tremendous wealth of knowledge from Bhavin sir combined with queries by other participants really facilitated a great learning experience. Thank you for such an amazing course. I hope more such courses are on the way.

Dr. Vinubhai Patel

The course WIND-STR-002 was really very much informative and useful. Enjoyed a lot.

Shreyas Barad

STEEL-STR-001 is much awaited course. Finally the industry expert teaching the right thing with right methodology. I had never seen such an excellent online course like this. The amount of knowledge and engagement was extremely good. Thank you so much for the wonderful course.

Tarnpreet Singh Gill

The course content for STEEL-STR-001 has been thoroughly devised to be effective in best manner. Sharing of Recorded Sessions was the best part as I myself missed few end sessions due to office pressure but I could complete these later on. Making a permanent whatsapp group for discussion was also a good idea.

Rajashree

The course WIND-STR-001 facilitated discussion and understanding of concepts  in more detailed simplified manner under the experienced and knowledgeable professionals. Thank you Dr Abhay sir and Bhavin sir.

Sujata Gupta

It gives a good awareness about software as well as corresponding codal provisions. So one can get technical knowledge as well as how software using clauses giving in codes. Teacher is very patient, soft spoken and knowledgeable person. Topics selected in the course STEEL-STR-001 are very relevant, useful and to the point for design and analysis of steel structure.

Ravichandra

STEEL-STR-001 is very wonderful course. I have learned many things through this course. During session Bhavin sir interaction with the participants is very great with clear explanations. We are expecting these type of courses in future also.

ZEESHAN MUNSHI

After attending online course STAAD-STR-001, I m very happy to share that….now I understand the result which I get after analysis……and how to use or understand the STAAD editor. Thank u so much for that…!!

Dipal Trivedi

The course GEO-STR-001 effectively addressed the gap between geotechnical and structural engineer. It not only covers important interface areas but also discusses consequences of poor interface. Subject experts have in depth knowledge and experience to address expectations of various participants ranging from fresh engineering graduate to highly experienced professionals. The course is interactive and experts are more than willing to address any queries of the participant. The course content is appropriately divided into multiple sessions over the weekend to allow flexibility to participants to participate and reflect during the week at their convenience. Overall, this course is highly recommended for structural and geotechnical engineers for gaining and enhancing the understanding of the very important interface between geotechnical and structural engineering work.

Rajen Dharia

On attending to STEEL-STR-01 course with the multi discipline participates from across India is the best part of this course. As the questions raised and its solutions, are many a times very new for each other during the sessions which enhance our knowledge in different practical applications and approach towards it’s solution. I Recommend to join STEEL-STR-01 to all upcoming Structural Engineers.

Hemanth Ponnuri

STEEL-STR-001 course is very informative and very well explained about the hidden insights in the IS800 code.

Mainak Ghosal

The Course WIND-STR-002 was very effective. It changed my perspective on not only wind engineering but also seismic loading analysis. Dr.Gupta also referred some excellent books which would not have been possible otherwise. Last but not the least, Dr. Gupta was kind enough to give me the charges of highlighting the errata for the Explanatory Handbook on Wind Engineering.

Mr. AJAY NARAYAN JADHAV

JUST TO APPRECIATE THE WORKSHOP STAAD-STR-001, IT HAS BEEN VERY USEFUL FOR ME. I WOULD LIKE TO HIGHLIGHT THE DYNAMIC OF THE SESSIONS, VERY ACTIVE, INTERESTING, AND WELL ORGANISED AND GREAT TO SHARE EXPERIENCES. MANY THANKS TO THE SPEAKER AND ORGANISERS!!…..ONCE AGAIN THANK YOU FOR SHARING AN INSPIRING LEARNING EXPERIENCE 👍

Er. Sachi Parekh

I appreciate the course structure designed by Er. Bhavin Shah , which includes the theory and implementation of coddle provisions to software and interpretation of results. By attending it, I am able to learn and explore the analogy of a software – Staad Pro. Thank you very much for sharing the knowledge and make my doubts crystal clear…

I must say that he is a true professional academician
Like a bridge between Institute and industry…

 

Parth Gandha

The course STAAD-STR-001 was really amazing an knowledgeable. As I fresher I gained so much knowledge about all the little things I didn’t know that were so much important. Troubleshooting of the software was the most important topic as a single wrong interpretation of the warning can totally change the outcome. I heartily thanks Shri Bhavin bhai and SQVE consultants for introducing such wonderful courses so that we can perform good in practice.

Dr. Raksha Parolkar

Topics covered in WIND-STR-002 were new for me to understand, as it has never been covered in syllabus. But the way Dr. Abhay Gupta sir taught, explained the problems and shared his experiences, the subject got easy to understand. I feel proud of being his student.

Dhirender Singh Bisht

I am pursuing masters in structural engineering and steel was the topic that I found always challenging since my B.Tech times. Moreover this is also a missing topic for the syllabus of many universities in masters program. To understand its theory ,and execute it practically in software is really challenging and need a mentor for that. I’ve been following Bhavin sir from last few months and was it was my good decision to choose him as a guide. By the course STEEL-STR-001, now I can feel that I am in a position to explore boundaries of IS code, and also I’m enthusiastic to see how Euro code, AISC code and other countries code tackles the problem which sounds to be complicated in IS code.

Haridharan M K

The online course EQ-STR-001 was very informative and it covered all the aspects of IS1893, IS16700, IS13920 and more important sharing the videos of the course which enabled to go through at any time.

Hiren Desai

The course WIND-STR-002 is very much informative as well as useful for practicing engineers considering the non availability of easy to detailed literatures and practical examples.

Praveen Vasishth

STEEL-STR-001 is very useful course for updating to new code for steel design of buildings.

JAKEER HUSSAIN

WIND-STR-002 : Explanation regarding wind action and building response due to wind, and the way of clarifications to participants questions by Dr. Abhay Gupta sir was excellent. Looking forward to attend relevant upcoming webinars/courses.

Anal Shah

The course WIND-STR-002 was so interactive and Dr. Abhay Gupta was so kind enough to listen to all queries and answer them in very great detail. Also time spent by Dr. Gupta is highly appreciated. Great job Dr. Gupta in spreading the knowledge.

Alok Rathore

After attending the course WIND-STR-001, I change my prospective towards structure and learn many concept.

Ajay Narayan Jadhav

WIND-STR-002 : Excellent sessions. Thanks a lot to team SQVe and the eminent speaker for giving a valuable knowledge.

Sharad Gupta

I am very grateful to Er. Dr. Abhay Gupta and Mr. Bhavin Shah for sharing your knowledge with us even though we have the same profession. Your course WIND-STR-002 helped me to clear many of the doubts I had sine the past 20 years.

Shefali Thakkar

STEEL-STR-001 was the best interactive course ,wherein all practical facts and limitations those are related with prevailing standards, software and practices were discussed. Vision was provided to participate towards solving such prevailing limitations rather following the same collaboratively. Course content was described very effectively and constant encouragement on experiments of the course deliverables and raising doubts and solving the same. Effective time management by faculty to satisfy all participants’ queries along with effective delivery of course content. 24 hour interaction facility was made available for solving course related queries.

REVA VENU V M

I am a budding geotechnical engineering professional. For three years I have worked as faculty in NIT and recently joined as project fellow- geotechnical engineering in a research Institute. Now I am in the transition phase of my career ie, shifting from academics to industry. My desire to become a geotechnical engineering consultant inspired me to join this course. As I don’t have much industrial exposure, attending the course GEO-STR-001 helped me to gain a lot of practical knowledge related to geotechnical engineering. Especially the discussions related to soil investigation, interpretation of soil report and interactive sessions were really amazing. Queries of other participants and the discussions associated with it,were really informative, as it mainly focussed on current industrial practices. Thank you Vivek sir and Bhavin sir for giving this wonderful opportunity. Hoping for a better support in my future endeavours too. Also expecting further courses related to this, in the coming future.

Tanuja Singh

STEEL-STR-001 : Excellent initiative to bring clarity of concepts to professionals.

Mohd Ameen Irfan

Bhavin Sir is very experienced and expert in his field, He made the topics in online course STAAD-STR-001 very clear from the scratch and also addressed every student’s queries and problems very nicely!!!

Kunal Patil

At first I never expected the sessions which are going to be conducted would be so knowledgeable. Day by day listening to Abhay sir touching every aspect from the codal point of view, few from his own experience. The mixture of everything made this course WIND-STR-002 very valuable and useful. Before this course I was trying to learn from everywhere how does this wind dynamic forces are to be calculated but through SQVE consultants arranging this webinar and learning under experience fraternity was worthwhile.

Srinivasa Reddy

Dear Sir thank you so much for your Course ETABS-STR-001. We learn Lot from here. Happy to Join this Course we are waiting for next Upcoming Courses.

D. Nivetha

The Staad Pro Training sessions were extremely fruitful, informative and it gave deeper insights into the field of structural engineering. Bhavin sir had not only taught us the software of Staad Pro, but he had explained us several technical concepts based on his field experiences. It was an interactive session where sir had asked us questions and it helped us think a lot and come up with solutions. Overall, it’s been a great experience and this 25 day of training has taught me a lot and has inspired me to develop greater passion towards civil engineering.

Ajay Narayan Jadhav

The course WIND-STR-001 provided Excellent clarifications on IS875 clauses.

Chokshi Hem

I heard somewhere that we shall never use STAAD for dynamic analysis. But that wrong interpretation of the software was cleared through the course : STAAD-STR-001.

Categories
Earthquake Engineering News & Events Structural Engneering

Session 11 : Amendment no. 2 for IS 1893 (Part 1) : 2016 & IS 13920 : 2016

Recently, BIS published the amendments related to IS 1893 (Part 1) : 2016 & IS 13920 in November, 2020. The article shows some of the major changes made in the code as per my understanding. Only brief details are mentioned below, for details please refer the amendments.

Amendment no. 2 of IS 1893 (Part 1) : 2016

1.     Clause related to vertical earthquake shaking is modified. The requirements are added for embankments, dams, bridges, etc. Also, the criteria for consideration of vertical earthquake shaking are modified. 

2.     The methodology for calculation of torsional irregularity is updated. The maximum displacement should be checked against the average displacement as against the minimum displacement in the previous version of the code. For more details, please refer the amendment.

 3.     For a building with re-entrant corners, three dimensional dynamic analysis to be performed with the flexible floor diaphragm. If there is a rigid diaphragm in the building then two separate analysis to be performed, firstly with flexible diaphragm and secondly with the rigid diaphragm. The worst effects to be considered from both the analysis.

 4.     For out of plane offset in vertical elements, the forces and moments due to earthquake effects in the elements connecting the two vertical elements with out of plane offset elements, the vertical element supporting the offset, and connections shall be enhanced by a factor of at least 2.5.

 5.     The provisions for stiffness irregularity are further clarified and few changes are made as well. In the note, it is mentioned that this provision is not applicable to such storeys, which have: (a) lower height, where services and utilities are housed, or (b) outrigger frame members placed in them.

 6.     For weak storey irregularity – buildings with strength irregularity shall not be permitted. In case, the weak storey is because of URM infills, provisions of 7.10 shall be followed.

 7.     Floating columns – Such columns are likely to cause concentrated damage in the structure, and are undesirable. A building with floating columns shall not be permitted, if the floating columns are part of or supporting the primary lateral load resisting system.’

 8.     Irregularity related to “Irregular Modes of Oscillation in Two Principal Plan Directions” is further clarified. It is also mentioned that this provision is not applicable to buildings with large podiums in the lower storeys.

 9.     For importance factor, “school” is replaced with the “educational building”.

 10.  OBF is not allowed in seismic zone III, IV & V.

 11.  Provisions for flat slab – structural wall system are further clarified.

 12.  Formula for Aw is modified and now it is same as when the code was published in 2016. It is mentioned that The value of Ta obtained shall neither be taken to be more than that given in 7.6.2 (a) nor less than that given in 7.6.2 (c).

 13.  In case of URM, RC members shall be designed for the governing combinations of stress resultants arising from structural analysis of:

a) Bare frame building, and

b) Frame building with URM infills.

14. For other details, please refer the amendment.

 Amendment no. 2 of IS 13920 : 2016

1.    Steel reinforcement shall comply with all of the following:

a) Elongation shall be at least 14.5 percent,

b) Ratio of ultimate stress to 0.2 percent proof stress shall not exceed 1.25,

c) Ratio of ultimate stress to 0.2 percent proof stress shall be at least 1.15, and

d) Steel shall be only of strength grades with minimum 0.2 percent proof stress of 415 MPa, 500 MPa or 550 MPa, in addition to other requirements of IS 1786.’

 2.     In cl no. 9.1.1, modifications are made for calculation of nominal shear strength of concrete in a beam-column joint.  

3.     In cl no. 9.1.2, provisions related to design shear stress demand are further clarified.

4. For other details, please refer the amendment. 

We are planning live technical discussion for the amendments on 20-DEC-20 at 11:00AM IST. Please share your comments / discussion points in the below comment box. We will discuss the same during live session of 20-DEC-20.

Link of the live session is attached below. Please like and share this video with the interested engineers in your circle.

Session 11 : Recent amendments for IS 1893 (Part 1):2016 and IS 13920:2016 – Live discussion

An online course related to earthquake resistant design will start from 17-MAR-22. Please watch the introductory video below:

EQ-STR-002 : Learn concepts of earthquake resistant design

Click below for more details and registration for EQ-STR-002

Categories
News & Events Structural Engneering

Session no. 7 : Irregularities as per Table no. 5 & 6 of IS 1893 (Part 1) : 2016

I have received suggestions from engineers to take up the discussion on irregularities as per table no. 5 &6 of IS 1893 (Part 1) : 2016.

It is a well established fact that the regular building perform better than the irregular buildings during seismic event. In IS 1893 (Part 1) : 2016, plan and vertical irregularities are defined in Table no. 5 & 6 of the code. The building is said to be irregular if any one of the irregularity is present in the building. It is mentioned in the code that all the efforts shall be made to eliminate irregularities by modifying architectural planning and structural configurations.

For each irregularity, mathematical limits are defined in the code as well as further action is detailed out whenever the irregularity exceeds the defined limits.        

Table no. 5 – Plan irregularities :

  • Torsional irregularity
  • Re-entrant corners
  • Floor slabs having excessive cut-outs or opening
  • Out-of-plane offsets in vertical elements
  • Non-parallel lateral force system

Table no. 6 – Vertical irregularities :

  1. Stiffness irregularity (Soft storey)
  2. Mass irregularity
  3. Vertical geometric irregularity
  4. In-plane discontinuity in Vertical elements resisting lateral force
  5. Strength irregularity (Weak storey)
  6. Floating or stub columns
  7. Irregular modes of oscillation in two principal plan directions

We will discuss each irregularity in detail during live technical discussion. The participants will also share their experiences related to the table no. 5 & 6 of the code. 

You may share the specific queries / discussion point which may be taken up during live technical discussion.

Join us on next Sunday (25-Oct-20) for live technical discussion on different irregularities as per table no. 5 and 6 of IS 1893 (Part 1) : 2016. Please share discussion points for the same in the comment box. You may also circulate this message with the interested engineers in your circle.

Session no. 7 – Irregularities as per Table no. 5 & 6 of IS 1893 (Part 1) : 2016
Facilitator : Bhavin Shah, Founder & CEO – SQVe Consultants