1)What's are the diff. types of column based on loading?
2)Is there any difference bitween Development length &
Anchorage Length?
3) What is the basic diff. between one way & two way slab?
4) Where should use OPC & where should PPC?
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Answer Posted / ptcool
1.
Based om types of reinforcement
1) Tied Columns
2) Spiral Columns
Based on type of loading
1) Columns with axial loading
2) with uni axial eccentric loading
3) with bi axial eccentric loading
Based on Slenderness Ratio
1) Short Columns (lx/D and ly/b <12)
2) long(Slender) Columns
2.
Development length is the length overlap of bars tied to
extend the reinforcement length. is about 50 times the dia
of bar is consider to safe.
Anchorage length- this is the additional length of bar
req to insert in another at the junction. For example-
Main bar of the beam in column at beam column junction.
this length is simiilar to the lap length.
3.
when the ratio of longer span to shorter span is less than 2
is called two way slab and the when it is greater than 2 is
called one way slab.
4. opc (ordinary portland cement) settle quicker than
ppc(portland pozzalano cement). the curing period for ppc is
greater than opc.
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