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Cive 3206 (january 19, 2015) (2), Slides of Engineering Mathematics

Carleton UniversityEngineering Mathematics

Concrete notes

Typology: Slides

2014/2015

Uploaded on 09/23/2015

mohamed_damiche
mohamed_damiche 🇨🇦

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CIVE3206 (Winter 2015) January 19, 2015
Instructor: Reza Fathifazl
Design of Reinforced Concrete
Components
CIVE 3206
Reza Fathifazl, Ph.D., P.Eng.
Week 3: Session 5
Flexural Behavior of Concrete Beams
January 19
th
, 2015
"Nothing is particularly hard if you divide it into small jobs."
Henry Ford
Flexural Theory
Flexural Behaviour of Uncracked
UnR
einforced
C
oncrete
(RC) Beam
jd
cr
ff '6.0
λ
=
Clause 8.6.4
Clause 9.8.2.3 For finding I
effective
, f
r
shall be taken as
half the calculated value.
pf3
pf4

Partial preview of the text

Download Cive 3206 (january 19, 2015) (2) and more Slides Engineering Mathematics in PDF only on Docsity!

Design of Reinforced Concrete

Components

CIVE 3206

Reza Fathifazl, Ph.D., P.Eng.

Week 3: Session 5

Flexural Behavior of Concrete Beams

January 19

th

"Nothing is particularly hard if you divide it into small jobs."

Henry Ford

Flexural Theory

Flexural Behaviour of Uncracked

UnReinforced Concrete (RC) Beam

jd

f (^) r = 0. 6 λ f' c

Clause 8.6.

Clause 9.8.2.3 For finding Ieffective, fr^ shall be taken as half the calculated value.

Flexural Theory

Flexural Behaviour of

Reinforced Concrete (RC) Beam before Cracking

r c

r tr cr

f f

h y

f I M

= 0. 6 λ '

Flexural Theory

Flexural Behaviour of

Reinforced Concrete (RC) Beam after Cracking (Linear Stage)

fc 0. 4 f' c ≈

Flexural Theory

Ԑcu

Based on CSA A23.3: Ԑcu=0.

Hognestad Model

ε' c= 0. 002

f ' c

 

 

 

 ^ − 

 

 

2

' '

' 2 c

c

c

c fc fc ε

ε

ε

ε

Flexural Theory

Flexural Behaviour of

Reinforced Concrete (RC) Beam at Ultimate State ε^ c=^ εcu

εc= εcu= 0. 0035