How many-legged stirrups do I have to provide in Footing if shear stress exceeds 5 kg/cm2?
Lumpsum quantity of steel in residential as well as a commercial building: Here I will tell you the meaning of lumpsum in a simple way, have a look; Meaning Of Lumpsum: The lump-sum is simply a single payment of money which is opposed to a series of payments made over time such as an annuity. The quRead more
Lumpsum quantity of steel in residential as well as a commercial building:
Here I will tell you the meaning of lumpsum in a simple way, have a look;
Meaning Of Lumpsum:
The lump-sum is simply a single payment of money which is opposed to a series of payments made over time such as an annuity.
The quantity of steel is different in different structural elements because the load taken by different elements are different.
- Slab or lintel – 0.7 to 1% (55 to 78.5 kg per metre)
- Columns – 0.8 to 6% (62.8 to 471 kg per metre cube)
I hope so your doubt is clear.
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Rohan Chaugule
2 legged vertical stirrups are to be provided when shear stress increases more than 5kg/cm2. The footing undergoes punching shear due to which its stability.One-way shear has to be checked across the full width of the base slab on a vertical section located from the face of the column, pedestal or wRead more
2 legged vertical stirrups are to be provided when shear stress increases more than 5kg/cm2. The footing undergoes punching shear due to which its stability.One-way shear has to be checked across the full width of the base slab on
a vertical section located from the face of the column, pedestal or wall at a distance equal to
(i) effective depth of the footing slab in case of footing slab on soil.
2) half the effective depth of the footing slab if the footing slab is on
Two-way or punching shear (cls.31.6 and 34.2.4)
Two-way or punching shear shall be checked around the column on a
perimeter half the effective depth of the footing slab away from the face of the column or pedestal
The permissible shear stress, when shear reinforcement is not provided, shall not exceed ks c τ , where ks = (0.5 + β c ), but not greater than one, β c being the ratio of short side to long side of the column, and c τ = 0.25(fck) 1/2 in limit state
method of design, as stipulated in. Normally, the thickness of the base slab is governed by shear. Hence, the necessary thickness of the slab has to be provided to avoid shear reinforcement.