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Found 14 results

  1. Can the slab bottom reinforcement pass below inverted beam bottom reinforcement? Otherwise the slab bottom reinforcement mesh will be lifted up atleast 2.5", thus reducing the design effective depth.
  2. Concrete on the building exterior treated to an exterior finish e.g. paint is classified as concrete exposed to weather or not? I am facing this problem in placing the reinforcement, the exterior will be painted and weather protected, should I follow the cover requirements of concrete exposed to weather or not?
  3. AoA everyone ! I want to know that is there any minimum & maximum reinforcement ratios for section of Raft footing ? Any Code or Reference. Also if you can provide your steel quantity consumed to Rraft concrete quantity ratios. Regards
  4. Dear Members I am working on a project site where Column Reinforcement is as shown in the file. The Columns (C6 to C20) are going from +12'-0" to +48'-0" un-braced and without any slab at intermediate levels. The slab is at +12'0" and +48'0" level. The Reinf is changing and larger dia bars are provided on top. I want to ask that is it alright and what is the possible explanation of changing the number and dia of bars in-between ? Regards Column Reinf 1.pdf
  5. Steel Areas for Flexure Reinforcement Given in ETABS Are Always Less Than Manual Calculation because of A lot of Approximation, So Should we enhance ETABS Steel by some percentage? or put it like tha.
  6. Salam there is a heavy raft of 6feet depth .Reinforcement is provided at top and bottom.is there any requirement of reinforcement in the middle of this T/B reinforcement for temperature/shrinkage control of this mass concrete.if there is any reference in any code kindly mention Regards
  7. Salam How much rusting is allowed on steel reinforcement and how it will be checked on site?kindly refer some code reference . Regards
  8. The minimum amount and spacing of reinforcement to be used in structural floors, roof slabs, and walls for control of temperature and shrinkage cracking is given in ACI 318 or in ACI 350R. The minimum-reinforcement percentage, which is between 0.18 and 0.20%, does not normally control cracks to within generally acceptable design limits. To control cracks to a more acceptable level, the percentage requirement needs to exceed about 0.60% (REFRENCE ACI COMMITE REPORT 224R-01) So according to above statement , should we follow 0.60%, to be on more safe side??
  9. Dear members on this link there is a drawing in which top_reinforcement is just supported only on one side how this type of reinforcement is efficient. http://wiki-edupunk.blogspot.com/2012/08/slabtopreinforcement.html thanking you in anticipation for your precious time and knowledge sharing
  10. in case of torsion at the discontinuous ends of a two way slab it reinforced with torsional steel which is L/5 where L is the longer side,any senior can share the drawing of the reinforcement how that reinforcement is placed ???
  11. why the minimum steel reinforcement ratio is greater than shrinkage/temperature reinforcement in slabs?ACI reference is 8.2.1.6,if suppose a lesser reinforcement required what is the reason to provide at least equal to shrinkage reinforcement?
  12. can we design a beam at minimum reinforcement ratio?? or it must be some above value than minimum reinforcement ratio??
  13. How to have a solid grip on the detailing of RCC structural elements? is there any course on detailing or any good book???
  14. How the main reinforcement in the bottom slab of a water tank is placed ???should it be bent down at the ends just as the one bent up in room slabs?and do the temperature bars be placed below main bars on the soil side or above the main bars on the water side???