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Is it only a requirement of a SE to produce beam spans and not lengths as well as part of structural calcs? If so, why not?

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I have a 20 page document with all the calculations. In my correspondence with him he has said those are spans and not lengths. A builder with 'basic experience' should not know they are not the same thing is his response. Is this normal? The engineer for the construction project was away when...

Of the 8 beams, 3 beams will have to be re-ordered. Beam 2 resting on the external wall of the house and beam 3 which is the exterior wall of the extension. God knows how long that will take to come. Also cutting other beams to size... All it needed was a measuring tape to prevent this but just...

It seems the construction company has ordered the following beams based on spans and all were delivered. Unfortunately 2 openings need longer length beams and others will have to be cut. Just wanted to clarify where the error has happened. Should the builders be measuring up and ordering lengths...

Asking as there for some beams (3 of 8) there is a 0.7m descrepancy between the order based on spans and the length of steel beams needed...

Q: Is it normal for a SE engineer to specify Spans of beams and not lengths? Are these normally for a builder to measure and order accordingly..

440x100x7/9800 = 30 tonnes per block in silo as compressive strength from readings If the tensile strength of concrete is 8-10% of the compressive strength, does that now follow that each block can't withstand tensile 30t x 0.08 = ~2.8t

True but even 15 blocks for a 3m height wall is around 100kg. Let's say the roof if 1 ton, the weight is spread along a span of 12 blocks on each side (not taking account the front facing wall)..doesn't add more than 40kg... Even with all the cement and plasterboard the weight on the edges per...

Point made. But let's say the inner cavity wall is 15 blocks high. With each thermalite block weighing 5 kg and taking into account the roofing how much weight is actually going to be directly above the edge block.. I'm labouring the point because all the other blocks along the span could...

The building control lady is on leave until next week but... they ended up filling those end gaps A layer of sand and cement on top as grout...

I'm new to the forum and I'm sorry if coming across in a rude way. I do really appreciate your time and replies. For what it's worth I used your arguments with the builder and informed architect. They did end up filling those gaps (tho it was done to appease me but they still maintained its...

Also why should "tensile" strength matter in this instance when we are concerned about the forces from above. Nothing will be pulling a block along its length

Becsuse that same issue can happen to ANY of the other blocks along the span that don't have any support underneath. Thermalite blocks in the perimeter are not particularly heavy, I ask a lot of questions naturally... Forum is for learning too no?

Not doubting, how much weight can one dense 7N block sustain before it fractures?

How will a small slip brick with cement on the ends prevent a bounce in the beams.. Doubt it makes a difference from that perspective

I think something is being lost in translation here. The block and beam by nature is acting as a lintel for the whole construction. We are referring to the edges of the beams which already sit on block work. It's not about support but about ventilation

To be fair I asked the architect BC and he said air gap is also an accepted method but clearly some choose to have it. Of course the beams are supported on block work but there is a void due to the 50mm recess profile of the beam

Thanks Charlie, that seems to be what my research shows. Can I ask what the worry is if there are no slip bricks and there's a gap - what's a potential problem? Also can you please explain your second point I didn't quite understand it. Many thank

Thanks for your input woody it is much appreciated. I just don't know how to check this. Do I call selco, ask the manufacturer of the beams and then call them and ask that way?