Thanks for this! A typical detail I use is to sail the beam over onto a few steel shims located centrally on the padstone and this takes away the additional stress induced due to the eccentric load! Love your videos!
Please do a video of a padstone design in the Eurocode Method. Thank you your videos are so helpful so this will be very helpful aswell please as i so struggle with understanding the Eurocode method
hey buddy your video help me clarify when and how to apply Bearing type 3 when designing using BS5628-1-2005. very useful indeed . In some non - SIP projects I occasional come across with large opening extensions. I created a program using python to automate the stress bearing checking. I will create an executive file version and email it to you, you may have some curiosity or interest in using coding for youR daily calcs. Tedds is not for me although I have used it before. Licence is quite expensive and Tedds makes us lazy.Thanks Lad.
If you were doing this properly, you need to get wall sampled and tested. On a smaller project, can be safe to assume a lower strength block. Something like 3N block
Do you mind doing a video on chimney breast removals at ground and first floor for example. Highlighting the calculations required to justify removal and the checks required on the wall left?
Hello :D Great video. I was wondering, when you calculate the length of the wall effected by your reaction and spread the load with theta equal to 45degrees, how do you handle the horizontal component to that load which appears, due to the inclination of the load path. To be able to due the spread of the load, don't you need to somehow take care of the tension in your calculation.
Great video daz, could you clarify how you got the 0 8 for the bearing factor. I understand the ratio between effective height and effective thickness, but I don't quite get the eccentricity part of the code (0.5t) thank you for your uploads
The resultant force is outside the middle third of the padstone so I don't think the formula you use to check the maximum stress is correct. Because of this you have a triangular distribution of stress under your padstone with a maximum stress of 6.67N/mm2
You need to be careful with using euro code fk and then using BS equations. If you use the euro code fk you should use the euro code equations and material factors.
Your initial calculation at approx 4min 24sec identifies that you also have a negative (tension) presssure of 1.07N/mm2 under the padstone but you do not explain how this is accomodated. If this padstone was close to the top of the wall then you could not allow this tension and would have to use middle third law for padstone. Also a padstone that was subject to bending tension within itself would likely need to be designed to resist same. It is probably better to start off with a lintel bearing length and padstone that adopts the middle third rule and thus remove the problem you have introduced of tension under the padstone and within the padstone that has not been recognised, discussed or dealt with in your explanation.
