A 6.0m long simply supported reinforced concrete beam has a width of 350mm and an overall depth of 470mm. The beam is reinforced with 2 - 28mm dia. compression bars on top and 4 28mm dia tenrion barr at the

Structural Analysis
6th Edition
ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
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A 6.0m long simply supported
reinforced concrete beam has a width
of 350mm and an overall depth of
470mm. The beam is reinforced with 2
- 28mm dia. compression bars on top
and 4- 28mm dia. tension bars at the
bottom, each located 70mm from the
extreme concrete fiber. Concrete
strength f'c 20.7 MPa and steel yield
strength fy = 415 MPa. Determine the
following, (A). Depth of compression
block assuming both tension and
compression steel yields. (B). What is
the ultimate moment capacity of the
beam in kN.m? (C). Determine the
additional concentrated liveload that
can be applied at midspan if the
deadload including the weight of the
beam is 20 kN/m.
Transcribed Image Text:A 6.0m long simply supported reinforced concrete beam has a width of 350mm and an overall depth of 470mm. The beam is reinforced with 2 - 28mm dia. compression bars on top and 4- 28mm dia. tension bars at the bottom, each located 70mm from the extreme concrete fiber. Concrete strength f'c 20.7 MPa and steel yield strength fy = 415 MPa. Determine the following, (A). Depth of compression block assuming both tension and compression steel yields. (B). What is the ultimate moment capacity of the beam in kN.m? (C). Determine the additional concentrated liveload that can be applied at midspan if the deadload including the weight of the beam is 20 kN/m.
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