Yes, just want to know if a load survey was done and it actually exceed the factored loads. However in old buildings, this actually occurred, they added carbon fiber for shear. But do you trust carbon fiber to have strain compatibility with rebars when the diagonal cracking forms and the bars...
1. How many of you got this load combination (1.2 DL + 1.6 LL) exceeded by actual service load?
2. Have you ever used 1.1 DL + 1.3 LL?
3. Do different countries have different kpa load for live load? For residential, office and commercial, what value is in the code of your country?
What I was asking was, if your load exceeds 2 * sqrt (Fc) b d, the shear resistance taken by the concrete is gone and there is diagonal crack which is to be resisted by the stirrups. Since the total resistance is supposed to be Vcf (concrete) + Vs( Stirrup), a diagonal crack can make Vcf less...
JAE, you never had problems with cracks because your actual load doesn't exceed the shear resistance contributed by concrete or Fcr? Or are you saying there are cracks but you never had problems with it? What are the appearances of diagonal cracks. Can this be seen with the naked eye outside the...
When you design beams.. do you make the Vc larger than the service load to make sure the beam won't form any diagonal shear crack in spite of putting adequate stirrups? Note that the contribution to Vc comes from the dowel action, aggregate interlock and contributions from the uncracked...
