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A reinforced concrete beam is subjected to the following bending moments:
Moment due to Dead load = 60 kNm; Moment due to live load = 90 kNm:; Moment due to Seismic load = 30 kNm. The design bending moment for limit state of collapse is:
  • a)
    225 kNm
  • b)
    216 kNm
  • c)
    180 kNm
  • d)
    135 kNm
Correct answer is option 'A'. Can you explain this answer?
Most Upvoted Answer
A reinforced concrete beam is subjected to the following bending momen...
Given:
Moment due to Dead load (DL)= 60 kNm
Moment due to live load (LL) = 90 kNm
Moment due to Seismic load (EL) = 30 kNm
Computation:
Design bending moment is Maximum of the following
1) Mu considering moment due to dead load and live load
Mu = 1.5 (DL + LL) = 1.5 x (60 + 90) = 225 kN-m
2) Mu considering moment due to dead load and Seismic load
Mu = 1.5 (DL + EL) = 1.5 x (60 + 30) = 135 kN-m
3) Mu considering moment due to dead load, live load and seismic load together
Mu = 1.2 (DL + LL + EL) = 1.2 x (60 + 90 + 30) = 216 kN-m.
So the answer is a maximum of (225, 135, 216 ) kN-m. i.e. 225 kN-m
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A reinforced concrete beam is subjected to the following bending moments:Moment due to Dead load = 60 kNm; Moment due to live load = 90 kNm:; Moment due to Seismic load = 30 kNm. The design bending moment for limit state of collapse is:a)225 kNmb)216 kNmc)180 kNmd)135 kNmCorrect answer is option 'A'. Can you explain this answer?
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A reinforced concrete beam is subjected to the following bending moments:Moment due to Dead load = 60 kNm; Moment due to live load = 90 kNm:; Moment due to Seismic load = 30 kNm. The design bending moment for limit state of collapse is:a)225 kNmb)216 kNmc)180 kNmd)135 kNmCorrect answer is option 'A'. Can you explain this answer? for Civil Engineering (CE) 2024 is part of Civil Engineering (CE) preparation. The Question and answers have been prepared according to the Civil Engineering (CE) exam syllabus. Information about A reinforced concrete beam is subjected to the following bending moments:Moment due to Dead load = 60 kNm; Moment due to live load = 90 kNm:; Moment due to Seismic load = 30 kNm. The design bending moment for limit state of collapse is:a)225 kNmb)216 kNmc)180 kNmd)135 kNmCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for Civil Engineering (CE) 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A reinforced concrete beam is subjected to the following bending moments:Moment due to Dead load = 60 kNm; Moment due to live load = 90 kNm:; Moment due to Seismic load = 30 kNm. The design bending moment for limit state of collapse is:a)225 kNmb)216 kNmc)180 kNmd)135 kNmCorrect answer is option 'A'. Can you explain this answer?.
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