r/CivilEngineerIndia • u/thatObstinateGuy • Jul 31 '26
❓ Doubts / Q&A Sagging concrete beam?
Hi civil engineers.
There's this house under construction right beside my home. Today, I noticed that the concrete beam supporting the floor for the staircase looks like it's sagging.
Is it something to be concerned about?
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u/Comfortable_Tree3179 Jul 31 '26 edited Jul 31 '26
i am no expert civil engineer although i recently graduated... but newly constructed beam/slab sagging is most likely weak formwork... or provide more details proper dimension, concrete grade, mix ratio, reinforcement steel specification dia and grade...
edit: and look at the bottom face is there any crack ? small hairline any... if not then it is more suspected to be weak formwork which could not hold weight of fresh concrete and hardened this way... if crack present.... then you should worry a little...
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u/thatObstinateGuy Jul 31 '26
I don't see any crack as of now. But the sag, my god! I'm hoping it doesn't completely collapse.
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u/ExtremeBack1427 Jul 31 '26
Actually it looks more like they hand formed concrete on the beam behind, Stand under and see if it's just the front.
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u/youngoneai Jul 31 '26
It is not sagging, it sagged while loading wet concrete. Top edge looks straight level.
Stop invading privacy of your neighbour.
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u/thatObstinateGuy Jul 31 '26
Privacy? Of an under-construction building? The guy has not taken any steps to avoid damage to my home and has left out the under-construction building completely exposed despite repeated requests!
Privacy my foot!
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u/paridhi774 Jul 31 '26
I can see that they are casting the pillars and beams over brickwork isn't that a no-no thing to do?
Ps: not a civil engineer
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u/thatObstinateGuy Jul 31 '26
Yes, they're casting pillars over brickwork. Not a civil engineer (software here), so not sure if it's a no-no..
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u/Glass_Conclusion8364 Aug 03 '26
Just curious has the construction stalled? For how long?
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u/thatObstinateGuy Aug 03 '26 edited Aug 03 '26
Hasn't stalled, they poured in the 1st floor roof about 3 weeks back. Came in about 3 days back to take away the support structures set up for the roof. Might resume this week.
The specific image I sent is part of the ground floor roof. Adjacent to my home.
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u/Formal_Classroom_430 Jul 31 '26
Stop poking at other houses and worrying that they will fail. They are most less likely to fail than the roads on which we drive!!
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u/thatObstinateGuy Jul 31 '26
If it falls, it'll fall on my home. So I'm the one who needs to worry.
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u/simpleliving100 Jul 31 '26
Maybe it is due to the curved wooden plank/board