When a structural consultant says that he has designed a building, that means he has attended to 3 structural design principles. Strength of the building, Stability of the Building and Serviceability of the building. In this stability of structures is a structural topic a beginner underestimate.
In this video am focusing on all important aspects of stability of buildings as mentioned in IS 456. Also, practical tips on structural stability are provided through out this structural tutorial. Please ensure you read my structural blog www.civilera.com/post/5-point... in addition to seeing the video lessons to learn structures.
There are many important stability aspects as mentioned below
1) Over turning of a building element or the entire building. This can be due to the condition of the building like its narrow base with that creates uplift or due to the site conditions like a nearby deep excavation near an existing building
2) It can be sliding which is of course rare in a large building but predominant in tall free standing retaining walls
3) It could be a load variation during construction that can create instability in local building members like a simply supported cut lintel.
4) Lack of moment connection or the frame action in the building can result in instability. Proper care needs to be taken to ensure that the building has a lateral shear transfer mechanism
5) Excessive sway and deflection or drift due to wind and earth quake forces also results in instability of the building.
All these are comprehensively explained in the video and the blog www.civilera.com/post/5-point...
There is also a free course that you can do on stability: All you need to do is to provide the details in this form and the structural course access will be emailed to you www.civilera.com/contact-us
This contains a lot more practical explanation and also structural assignments and quiz that help you to reinforce your understanding on stability.
Basically, instability can be attended in different ways. Different instabilities need different structural attention.
a) Attention in scheme of the building: Most of the instabilities can be avoided if we have a robust structural scheme. This comes by good ability to appreciate the structural fundamentals. Some times early appointment of a structural engineer
b) Looking in to the site conditions: This includes looking at the interface of the building early and understand the challenges and corrections needed to overcome the structural challenges. This could be looking at the level differences or the foundations of the existing structure and its adequacy and levels to ensure that the new building that we might build will not create an issue to the existing building or to the new building.
All these important stability points related to a building structure is completely explained in the video and the blog. Please like our video and follow the channel. Also join our email lists and structural webinar lists and see our structural blogs at www.civilera.com/blog