1
GATE CE 2008
MCQ (Single Correct Answer)
+2
-0.6
A reinforced concrete column contains longitudinal steel equal to $$1$$ percent of net cross-sectional area of the column. Assume modular ration as $$10.$$ the loads carried (using the elastic theory) by the longitudinal steel and the net area of concrete, are $${P_s}$$ and $${P_c}$$ respectively. The ration $${P_s}$$/$${P_c}$$ expressed as percent is
A
$$0.1$$
B
$$1$$
C
$$1.1$$
D
$$10$$
2
GATE CE 2005
MCQ (Single Correct Answer)
+2
-0.6
A rectangular column section of $$250\,\,mm \times 400\,mm$$ is reinforced with five steel bars of grade $$Fe$$ $$500,$$ each of $$20$$ $$mm$$ diameters. Concrete mix is $$M30.$$ Axial load on the column section with minimum eccentricity as per $$IS: 456$$ - $$2000$$ using limit state method can be applied upto
A
$$1707.37$$
B
$$1805.30$$
C
$$1806.40$$
D
$$1903.7$$
3
GATE CE 2004
MCQ (Single Correct Answer)
+2
-0.6
An $$RC$$ short column with $$300\,\,mm \times 300\,mm$$ square cross-section is made of $$M20$$ grade concrete and has $$4$$ numbers, $$20$$ $$mm$$ diameter longitudinal bars of $$Fe$$-$$415$$ steel. It is under the action of a concentric axial compressive load. Ignoring the reduction in the area of concrete due to steel bars, the ultimate axial load carrying capacity of the column is
A
$$1659$$ $$kN$$
B
$$1548$$ $$kN$$
C
$$1198$$ $$kN$$
D
$$1069$$ $$kN$$
4
GATE CE 1997
Subjective
+2
-0
Design a square $$R.C$$ column to resist an axial load of $$400$$ $$kN$$ due to dead load and $$240$$ $$kN$$ due to live load at service stage. Design the section as a short axially loaded column. Use $$M25$$ concrete and steel of grade $$415$$ $$N/m{m^2}.$$ Give a near sketch of the cross section.
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