How does one obtain design strength of concrete = 0.45fck as given in IS456:2000??? Here is the explanation: In india, we test concrete cubes to determine 28-days characteristic strength of concrete, which is depicted by “fck” However, we all know that, if we cast cylinder from the same concrete mix,…
According to ACI 421.3R , for flat slab has beam between support could transfer all shear to column if alfa1L2/L1 >1.0 which refer to its relevant stiffens to the slab , if not as mentioned on the attached picture slab should be checked to punching stress (two way shear )however…
The pattern and extent of cracks will vary substantially from structure to structures and members to members even in a similar structure. It is very difficult to assign the unique values of the stiffness modifiers for different members. The values which are suggested in the code are based on the…
What is Releases in beam :- To understand this first understand equilibrium torsion and compatibility torsion Primary or equilibrium torsion, and Secondary or compatibility torsion. The equilibrium torsion is required for the basic static equilibrium of most of the statically determinate structures. Accordingly, this torsional moment must be considered in…
