Why is natural cement used very rarely?
Anonymous Quiz
11%
Brown in color
50%
Standard consistency is not met
25%
Sets too quickly
13%
Particle size is too fine
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đ˘ PUNCHING SHEAR IN FLAT SLABS â AN IMPORTANT DESIGN CHECK
Punching shear is a concentrated shear failure mechanism that can occur around a column or another concentrated load applied to a slab or footing.
It is particularly important in flat slabs and isolated footings.
đš Why Does It Occur?
Concentrated loads create high local shear stresses around the loaded area. If the design resistance is insufficient, a punching-type failure may develop.
đš Where Is Punching Shear Checked?
đ˘ Around columns supporting flat slabs.
đď¸ Around concentrated loads on slabs.
𧹠Around columns or loaded areas in footing design.
đš What Influences Punching Shear Resistance?
đ Concrete properties.
đ Slab or footing thickness.
đ Column or loaded-area dimensions.
đ Applied shear force and moment transfer.
đ Reinforcement and any specified punching-shear reinforcement.
â ď¸ Punching shear is a structural design check, not something that can be judged reliably from appearance alone.
đ Always follow the applicable structural design code and approved drawings.
@etconp
Punching shear is a concentrated shear failure mechanism that can occur around a column or another concentrated load applied to a slab or footing.
It is particularly important in flat slabs and isolated footings.
đš Why Does It Occur?
Concentrated loads create high local shear stresses around the loaded area. If the design resistance is insufficient, a punching-type failure may develop.
đš Where Is Punching Shear Checked?
đ˘ Around columns supporting flat slabs.
đď¸ Around concentrated loads on slabs.
𧹠Around columns or loaded areas in footing design.
đš What Influences Punching Shear Resistance?
đ Concrete properties.
đ Slab or footing thickness.
đ Column or loaded-area dimensions.
đ Applied shear force and moment transfer.
đ Reinforcement and any specified punching-shear reinforcement.
â ď¸ Punching shear is a structural design check, not something that can be judged reliably from appearance alone.
đ Always follow the applicable structural design code and approved drawings.
@etconp
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The carbon content of steel is:
Anonymous Quiz
17%
Less than 0.15%
25%
2% to 4%
51%
0.002% to 2.1%
7%
5% to 15.5%
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The relationship between porosity m, and the void ratio e is given by:
Anonymous Quiz
19%
1+m = 1/(1+e)
26%
1-m = 1/(1+e)
15%
m = 1/e
41%
m = 1/(1+e)
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