The figure shown below illustrates a continuous 1-way slab with four equal spans. The centre- to-centre distance between the beams is 4 m. The 180 mm thick slab is loaded with a characteristic dead load (inclusive of self-weight) of 5 kN/m² and an imposed load of 1.2 kN/m². The widths of all supporting beams are 400 mm. Assume that all beams from AA' to EE' are steel girders. A' A B' B C' 2 D' E' E 8 m a. Construct the shear force and bending moment diagrams according to Clause 6.10.2 of AS 3600. b. Design the main steel reinforcement to resist bending over support B'B and along the midspan of B'B-C'C. Use Grade 32 concrete, N10 rebar and 25 mm concrete cover.
The figure shown below illustrates a continuous 1-way slab with four equal spans. The centre- to-centre distance between the beams is 4 m. The 180 mm thick slab is loaded with a characteristic dead load (inclusive of self-weight) of 5 kN/m² and an imposed load of 1.2 kN/m². The widths of all supporting beams are 400 mm. Assume that all beams from AA' to EE' are steel girders. A' A B' B C' 2 D' E' E 8 m a. Construct the shear force and bending moment diagrams according to Clause 6.10.2 of AS 3600. b. Design the main steel reinforcement to resist bending over support B'B and along the midspan of B'B-C'C. Use Grade 32 concrete, N10 rebar and 25 mm concrete cover.
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Transcribed Image Text:The figure shown below illustrates a continuous 1-way slab with four equal spans. The centre-
to-centre distance between the beams is 4 m. The 180 mm thick slab is loaded with a
characteristic dead load (inclusive of self-weight) of 5 kN/m² and an imposed load of 1.2
kN/m². The widths of all supporting beams are 400 mm. Assume that all beams from AA' to
EE' are steel girders.
A'
B'
I
A
B
C'
2
D'
D
E'
E
8 m
a. Construct the shear force and bending moment diagrams according to Clause 6.10.2 of AS
3600.
b. Design the main steel reinforcement to resist bending over support B'B and along the
midspan of B'B-C'C. Use Grade 32 concrete, N10 rebar and 25 mm concrete cover.
c. Design the secondary reinforcement of the slab for crack control based on AS 3600.
d. Check the adequacy of the slab against shear.
e. Detail the cross-section view of the slab.
f. At ultimate state, what are the main design considerations for a two-way slab? Briefly explain
with illustrations.
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Step 1: Introducing given data
VIEWStep 2: Calculate load from slab (p)
VIEWStep 3: Calculate SF & BM of beam A'A & E'E
VIEWStep 4: Calculate SF & BM of beam B'B, C'C & D'D
VIEWStep 5: Draw shear force & bending moment diagram
VIEWStep 6: Calculate steel reinforcement for moment over support B'B
VIEWStep 7: Area of main reinforcement
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