CIVL 232 Structural Concrete Design
Assignment 7 (Tuesday, 13 May 2004; Due date: Tuesday, 18 May 2004)
Short columns with uniaxial and biaxial bending, slender columns
1. Design the longitudinal stee
3.2
Shear Strength of Beams with Shear Reinforcement
The complementary shear stress gives rise to diagonal tensile and
diagonal compressive stresses.
Taking a simplified view, concrete is weak in te
Structural Concrete Design
Course Notes for CIVL 232
by
J S Kuang
Department of Civil Engineering
Hong Kong University of Science and Technology
[email protected] by J.S. Kuang
Chapter One
_
Design of Reinfo
2.3
Singly Reinforced Rectangular Section in Bending
2.3.1 Design formulae
The design formulae are derived using the BS 8110 simplified
stress block.
z = la d
Fst
s
Fig. 2.3-1 Singly reinforced sectio
CIVL 23 Design of Structural Concrete
Spring 2005
Solutions of Assignment 4
Question 4.1
(a) Given N =3000 kN, M = 800 kN-m,
N 3000 103
=
= 14.29
bh 350 600
M
800 106
=
= 6.35
bh 2 350 6002
From BS 81
CIVL 232 Design of Structural Concrete
Assignment 6: Continuous beams, one-way and two-way slabs, staircases
Assigned: Thursday 4 May 2006
Due date: Thursday 11 May 2006
1. The floor plan and slab arr
CIVL 232 Design of Structural Concrete
Spring 2006
Solutions of Assignment 6
Question 6.1
(a) Design for the secondary beam S1-S2-S3-S4-S5-S6
The floor plan is shown as follows:
Loadi ng t r ansf er t
CIVL 232 Mid-term Quiz
1. Tuesday, 21 March 2006, 9:00 am 10:20 am
2. Rooms: 2502 and 2407
Room 2502 for those whose first character of surnames is from
A to L;
Room 2407 for those whose first charac
CIVL 232 Design of Structural Concrete
Solution to Assignment 2
2.1 (a) Under-reinforced beam: The failure of an under-reinforced beam is
characterised by large steel strains, and hence by extensive c
CIVL 232 Design of Structural Concrete
Assignment 4: Sections subjected to axial load and uniaxial bending; shear in sections
Assigned: Tuesday 28 March 2006
Due date: Tuesday 4 April 2006
4.1 A recta
CIVL 232 Design of Structural Concrete
Spring 2006
Solutions of Assignment 5
Question 5.1
(a) The bond coefficient for bars in tension (Type 2 deformed bars)
= 0.5
The ultimate anchorage bond stress
CIVL 232 Design of Structural Concrete
Assignment 6 (Thursday, 29 April 2004; Due date: 8 May 2004)
Continuous beams, one-way and two-way slabs, staircases
1. The floor plan and slab arrangement of a
CIVL 232 Design of Structural Concrete
Assignment 3 (Tuesday, 9 March 2004)
Doubly reinforced and flanged sections in bending
1. (a) Derive the equation for the condition to ensure yielding of the com
1.2
Limit State Design (Design to BS 8110)
1.2.1 Introduction
The design of engineering structures must ensure:
o The structure is safe under the worst loading.
o The deformation of the members does
Chapter Two
_
Analysis of Sections of Reinforced Concrete Members
2.1
Design Stress-Strain Curves
Short-term stress-strain curves in BS 8110: Part 1: 1997 are presented in
Figs 2.1 and 2.2.
These curv
(2) Moment redistribution of reinforced concrete beam sections
Once a RC beam section develops its ultimate moment of
resistance Mu , it then behaves as a plastic hinge (Fig. 2.3-6) due to
(1) the pl
2.5
Flanged Section in Bending (T-beam and L-beam sections)
Fig. 2.5-1 T-beams and L-beams in building systems
Neutral axis in flange
Section at span
Section at support
Neutral axis in web
Section at
3.4
Sections Subjected to Torsion
3.4.1 Reinforced concrete members subjected to torsion
Reinforced concrete members are commonly subjected to bending
moments, to transverse shears associated with tho
4.5
Cracking
4.5.1 Methods for crack control
Excessive cracking and wide deep cracks will
o affect durability; and
o lead to corrosion of reinforcement although strength may not be
affected.
BS 8110
7.5
Biaxial Bending Short Columns
7.5.1 Section subjected to an axial load acting at two major eccentricities
Consider the column section shown in Fig. 7.5-1 is subjected to a
load N acting at eccentr
CIVL 232 Structural Concrete Design
Assignment 1 (Thursday, 12 February 2002)
1. (a) Describe two principal types of limit state in the limit state design.
(b) Why should we introduce the partial fact
1.3
Analysis of the Structure
1.3.1 Load combinations
(1) Load combinations for the ultimate limit state
The arrangement of loads should be such as to cause the most
severe effects, i.e. the most seve
1.3.3 Analysis of frames supporting vertical and lateral loads
Building frames
Braced frames
two types:
Unbraced frames
o A braced frame is designed to resist vertical loads only (such as
dead and
Chapter Seven
_
Design of Reinforced Concrete Columns
7.1
Columns in Buildings
7.1.1 Types of columns
Columns in a building carry loads from the beams and slabs down
to the foundations. They are prim
CIVL 232 Design of Structural Concrete
Solution to Assignment 1
1. Solution
(a) Two principal types of limited state:
Ultimate limit state: The whole structure or its components should not
collapse, o
CIVL 232 Design of Structural Concrete
Assignment 2 (Tuesday, 2 March 2004)
Singly reinforced sections in bending, moment redistribution
2.1 (a) Describe the failure characteristics of an under-reinfo
CIVL 232 Design of Structural Concrete
Assignment 2: Singly reinforced sections in bending; moment redistribution
Assigned: Thursday, 2 March 2006
Due date: Thursday, 9 March 2006
2.1 (a) Describe the
CIVL 232 Design of Structural Concrete
Assignment 3: Doubly reinforced and flanged sections in bending
Assigned: Thursday 9 March 2006
Due date: Thursday 16 March 2006
50
3.1 The section shown in Fig.