1.1 Find the maximum moment of the beam. Mmax 1.2 Find the neutral axis distance from the top surface. If the section is governed by the linear elastic regime, the transformed area method dn = ΣYi Ai / Σ Ai is valid. dn 1.3 Find the cracking moment. Mc = kNm (No answer given) ♦ (No answer given) No Yes mm kNm 1.4 Does this section crack? . 1
1.1 Find the maximum moment of the beam. Mmax 1.2 Find the neutral axis distance from the top surface. If the section is governed by the linear elastic regime, the transformed area method dn = ΣYi Ai / Σ Ai is valid. dn 1.3 Find the cracking moment. Mc = kNm (No answer given) ♦ (No answer given) No Yes mm kNm 1.4 Does this section crack? . 1
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Transcribed Image Text:The point loads are placed at the fixed positions shown in the figure and they are
live loads.
A
K
a
b
a
1₁
B
Asc
Ast
Cross section
1₂
W
C (centre)
D
f' = 38 Mpa
f'ct.f=
fsy
= 500 MPa
Es = 200 GPa
Ec
= 3.5 MPa
= 28600 MPa
1₂
Variables
1₁2.5 m
1₂3m
a 55 mm
600
b
Ast
mm
400
mm
620
mm²
3200
mm²
Transcribed Image Text:Q1) The beam carries an unfactored uniformly distributed dead load (including
self-weight) of G = 4 kN/m and an unfactored uniformly distributed live load of
Q = 0 kN/m. Two concentrated unfactored live loads of P = 2 kN are applied
at the positions shown in the figure.
(Note: The load factor for G is 1.2, and for P is 1.5. There is no uniformly
distributed live load.)
1.1 Find the maximum moment of the beam.
Mmaz =|
1.2 Find the neutral axis distance from the top surface. If the section is governed
by the linear elastic regime, the transformed area method dn = ΣYiAi/Σ Ai
is valid.
dn
=
1.3 Find the cracking moment.
Mc =
kNm
(No answer given) ♦
(No answer given)
No
Yes
mm
kNm
1.4 Does this section crack?
(
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