Determine the lever arm for the beam shown in the figure.find also its moment of resistance.
225 d=375 fy=25 N/mm2
fcu=25N/mm2 fy =460N/mm2
250,210
300,113
375,113
300,350
Determine the moment carrying capacity of the trapezoidal beam section shown below.
300 d=400 150 fcu =25N/mm2
fy=460N/mm2
3 331
133
131
313
Design a rectangular beam to take an ultimate load moment of 150KNm
a. as singly reinforce beam
b.as a beam whose overall depth is limited to 400mm
As =935mm2,provide 2T25(981.7mm2)
225 475 525 2T25 a. b. a. 225 525 475 2T25 b. 225 350 400 2T16 3T25
225 500 450 2T25 a. b. 225 400 350 2T25 2T20
a. 225 550 500 2T25 b. 225 350 400 2T25 2T25
Determine the design ultimate moments for the beam shown in the figure,using following details.
i.Dead load from the parapet wall can be taken as a line load of 2.00 kN/m
ii.Allowance for finishes on the slab can be taken as 1.0kN/m2
iii. Imposed load on slab should be taken as 4.0kN/m2
iv. Density of reinforced concrete =24kN/m2
6000 2000 300 125 450 SECTIONAL ELEVATION 100 3500 3500 PLAN A B C
M at B=110 KNm
M mid of BC =181KNm
Mat B=200kNm
M mid of BC =25 250kNm
Mat B=101kNm
M mid of BC =118kNm
M at B=111KNm
M mid of BC =811 kNm
Design an edge beam of a beam-slab system to take an ultimate moment of 200kNm at mid Span.
Spacing of beams=4 m
Span of beams=6m
Thickness of slab=100mm
fcu=25N/mm2,fy=460N/mm2
Use 2T32 & 1T20
Use 2T25 & 1T20
Use 3T32 & 1T25
Use 3T20 & 1T16
2000 6000 3500 3500 100 SECTION PLAN 300 450 125 Determine the design ultimate load moments for the beam section shown
here.
Dead load from parapat wall=2KN/m Finishes=1KN/m2,Imposed load=4KN/m2 Density of Concrete=24KN/m3 B C A
M at B=110kNm,
M at mid span of BC =181KNm
M at B=101KNm
M at mid span of BC=118 KNm
M at B=150KNm
M at mid span of BC =128KNm
None of the above
Design the reinforcement for the hogging and sagging mements in the beam in the Question 6. Use fcu=25N/mm2,fy=460N/mm2
Use 3T16 for hogging
Use 2T32,1T25 for sagging
Use 2T20 & 1T16 (829mm2) for hogging
Use 2T25 &1T20 (1295mm2) for sagging
Use 2T25,1T20 for hogging
Use 3T25 for sagging
None of the above