Civil Engineering (CE) Exam  >  Civil Engineering (CE) Questions  >  A reinforced-concrete slab with effective dep... Start Learning for Free
A reinforced-concrete slab with effective depth of 80 mm is simply supported at two opposite ends on 230 mm thick masonry walls. The centre-to-centre distance between the walls is 3.3 m. As per IS 456 : 2000, the effective span of the slab (in m, up to two decimal places) is _________.
    Correct answer is '(3.15)'. Can you explain this answer?
    Verified Answer
    A reinforced-concrete slab with effective depth of 80 mm is simply sup...
    Effective depth 
    d = 80 mm
    Width of support = 230 mm
    c/c distance between walls = 3.30 m
    Clear span of slab = 3.30− 0.23= 3.07 m
    Effective span 

    So, 
    Leff = 3.15 m
    View all questions of this test
    Most Upvoted Answer
    A reinforced-concrete slab with effective depth of 80 mm is simply sup...
    The effective span of a reinforced-concrete slab is the distance between the supports where the slab is effectively supported. In this case, the slab is simply supported on two 230 mm thick masonry walls.

    Given data:
    - Effective depth of the slab (d) = 80 mm = 0.08 m
    - Thickness of masonry walls (h) = 230 mm = 0.23 m
    - Centre-to-centre distance between the walls (L) = 3.3 m

    To determine the effective span, we need to consider the clear span (Lc) and the effective depth (d) based on IS 456:2000.

    1. Clear span (Lc):
    The clear span is the distance between the inner faces of the supports, excluding any part of the supports within the span.

    Clear span (Lc) = Centre-to-centre distance between the walls (L) - 2 × Thickness of masonry walls (h)
    Lc = 3.3 m - 2 × 0.23 m
    Lc = 2.84 m

    2. Effective depth (d):
    The effective depth is the distance between the centroid of the tension reinforcement and the extreme compression fiber.

    Effective depth (d) = Total depth of slab (h) - Clear cover (c) - Diameter of reinforcement (φ)
    Considering nominal cover as per IS 456:2000:
    Clear cover (c) = 20 mm = 0.02 m
    Diameter of main reinforcement (φ) = 10 mm = 0.01 m

    Effective depth (d) = 0.23 m - 0.02 m - 0.01 m
    d = 0.20 m

    3. Effective span (Le):
    The effective span is taken as the lesser of the clear span (Lc) and the effective depth (d).

    Effective span (Le) = min(Lc, d)
    Le = min(2.84 m, 0.20 m)
    Le = 0.20 m

    Therefore, the effective span of the reinforced-concrete slab is 0.20 m or 20 cm. The correct answer is 0.20 m, which is equivalent to 3.15 m when rounded to two decimal places.
    Free Test
    Community Answer
    A reinforced-concrete slab with effective depth of 80 mm is simply sup...
    Eff. defth,= 80mm
    width of the support= 230mm
    c/c distance b/w wall= 3.30m
    clear span of slab= 3.30-0.23= 3.07m
    eff. span = min(L + d)
    =3.07+0.08
    = 3.15
    Explore Courses for Civil Engineering (CE) exam

    Similar Civil Engineering (CE) Doubts

    Top Courses for Civil Engineering (CE)

    A reinforced-concrete slab with effective depth of 80 mm is simply supported at two opposite ends on 230 mm thick masonry walls. The centre-to-centre distance between the walls is 3.3 m. As per IS 456 : 2000, the effective span of the slab (in m, up to two decimal places) is _________.Correct answer is '(3.15)'. Can you explain this answer?
    Question Description
    A reinforced-concrete slab with effective depth of 80 mm is simply supported at two opposite ends on 230 mm thick masonry walls. The centre-to-centre distance between the walls is 3.3 m. As per IS 456 : 2000, the effective span of the slab (in m, up to two decimal places) is _________.Correct answer is '(3.15)'. 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 slab with effective depth of 80 mm is simply supported at two opposite ends on 230 mm thick masonry walls. The centre-to-centre distance between the walls is 3.3 m. As per IS 456 : 2000, the effective span of the slab (in m, up to two decimal places) is _________.Correct answer is '(3.15)'. 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 slab with effective depth of 80 mm is simply supported at two opposite ends on 230 mm thick masonry walls. The centre-to-centre distance between the walls is 3.3 m. As per IS 456 : 2000, the effective span of the slab (in m, up to two decimal places) is _________.Correct answer is '(3.15)'. Can you explain this answer?.
    Solutions for A reinforced-concrete slab with effective depth of 80 mm is simply supported at two opposite ends on 230 mm thick masonry walls. The centre-to-centre distance between the walls is 3.3 m. As per IS 456 : 2000, the effective span of the slab (in m, up to two decimal places) is _________.Correct answer is '(3.15)'. Can you explain this answer? in English & in Hindi are available as part of our courses for Civil Engineering (CE). Download more important topics, notes, lectures and mock test series for Civil Engineering (CE) Exam by signing up for free.
    Here you can find the meaning of A reinforced-concrete slab with effective depth of 80 mm is simply supported at two opposite ends on 230 mm thick masonry walls. The centre-to-centre distance between the walls is 3.3 m. As per IS 456 : 2000, the effective span of the slab (in m, up to two decimal places) is _________.Correct answer is '(3.15)'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of A reinforced-concrete slab with effective depth of 80 mm is simply supported at two opposite ends on 230 mm thick masonry walls. The centre-to-centre distance between the walls is 3.3 m. As per IS 456 : 2000, the effective span of the slab (in m, up to two decimal places) is _________.Correct answer is '(3.15)'. Can you explain this answer?, a detailed solution for A reinforced-concrete slab with effective depth of 80 mm is simply supported at two opposite ends on 230 mm thick masonry walls. The centre-to-centre distance between the walls is 3.3 m. As per IS 456 : 2000, the effective span of the slab (in m, up to two decimal places) is _________.Correct answer is '(3.15)'. Can you explain this answer? has been provided alongside types of A reinforced-concrete slab with effective depth of 80 mm is simply supported at two opposite ends on 230 mm thick masonry walls. The centre-to-centre distance between the walls is 3.3 m. As per IS 456 : 2000, the effective span of the slab (in m, up to two decimal places) is _________.Correct answer is '(3.15)'. Can you explain this answer? theory, EduRev gives you an ample number of questions to practice A reinforced-concrete slab with effective depth of 80 mm is simply supported at two opposite ends on 230 mm thick masonry walls. The centre-to-centre distance between the walls is 3.3 m. As per IS 456 : 2000, the effective span of the slab (in m, up to two decimal places) is _________.Correct answer is '(3.15)'. Can you explain this answer? tests, examples and also practice Civil Engineering (CE) tests.
    Explore Courses for Civil Engineering (CE) exam

    Top Courses for Civil Engineering (CE)

    Explore Courses
    Signup for Free!
    Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
    10M+ students study on EduRev