Materials And structurs – Structural Design Actions

Hi guys,

 

The assignment is pretty straightforward

 

i just want someone to do all the work to me and if possible explain what they have done

 

if you are able to help please let me know asap

 

regards

 

Author:Dr Sawekchai Tangaramvong (July 2013) 1 of 5

CVEN2302 Materials and Structures – Design Strand

Assignment 1: Structural Design Actions

Name:_____________________________________ Student No.:_____________________

Name:_____________________________________ Student No.:_____________________

The work contained within is solely the work of ______________________________________

and____________________________________________ except where clear reference is

made within the text of the assignment to a third party.

________________________________ _______________________________________

Signature Signature

__ __ __ __ __ __ __ __ __ __ __ __ __ __ __ __ __ __ __ __ __ __ __ __ __ __ __ __ __ __

Item Full mark Allocated mark

Question 1 7

Question 2 3

Total mark 10

Author: Dr Sawekchai Tangaramvong (July 2013) 2 of 5

CVEN2302 Materials and Structures – Design Strand

Assignment 1: Structural Design Actions

Total number of Questions: 2

Submission Date: This assignment is to be submitted to the assignment box labelled

“Tangaramvong” on 6
th
Floor in CE Building (next to the computer lab) by 5.00pm on Friday

30 August 2013, Week 5. Late submissions will NOT be accepted!

• You may form a group of maximum 2 people. Where identical, or near identical

assignments are submitted such that it is apparent that one is essentially a copy of another

then BOTH assignments will receive a mark of ZERO regardless of which one is the

original and which one is the copy.

On the front cover of your submission provide your names and student numbers along with the

statement:

The work contained within is solely the work of ______________________________________
and____________________________________________ except where clear reference is

made within the text of the assignment to a third party. By signing below, we understand and

accept the agreements listed at the end of this current page.

________________________________ _______________________________________
Signature Signature

AGREEMENTS

• Assignments received without the above statement will not be marked.

• If working as a group then both students will receive equal marks regardless of

contribution.

• All drawings and calculations must be able to be read without pulling your assignment

apart.

Author: Dr Sawekchai Tangaramvong (July 2013) 3 of 5

Question 1

For the floor plan shown in Fig. 1, the permanent loads consist of:

o Bondek composite (1-way) slabs spanning (see arrows) over 3 m = 3.7 kPa
o Ceilings and services (allowing 500 mm headroom) = 0.3 kPa
o Ceramic floor tiles = 0.15 kPa
o Partitions = 1.5 kPa

Both secondary and primary beams “A” and “B” are simply supported, where the primary
beams support the secondary beams. They are provided with fire spray (i.e. permanent load of
0.6 kN/m) for 2 hrs fire resistivity. Assume the self-weight of steel beams “A” and “B” is 1 kN/m.

As structural engineers, your tasks are to:

(i) Determine the design (factored permanent and imposed) loads for typical steel beam
(secondary beam “A” with its span of 6 m) and girder (primary beam “B” with its span of
9 m) for the office building shown in Fig. 1 (see AS1170.1 for imposed loads) that
complies with AS1170.0 for:

(a) Strength limit state

(b) Serviceability limit state (short term and long term)

You must demonstrate your answers through detail calculations and relevant tributary
diagrams. [2 marks]

[Hints: Loading path follows floor → beam “A” → beam “B” → column]

(ii) Determine the maximum deflections of these beams “A” and “B” under the short term
and long term service loads. [1 mark]

(iii) Select minimum UB (or WB) -sections (from OneSteel products) for these beams “A”
and “B” that satisfy the short-term deflection limit of span/250. [1 mark]

(iv) Draw BMD and SFD of these beams “A” and “B” for Strength limit state, and determine
the maximum design moment (M

*
) and the design shear (V

*
). [1 mark]

(v) For the three story building composing of three identical floor layouts in Fig. 1,
determine the design (factored permanent and imposed) loads for the two columns “C”
and “D” at the ground floor complying with AS1170.0 for:

(a) Strength limit state
(b) Serviceability limit state (short term and long term)

Assumed the height of all columns at each floor is 3.5 m, and the self-weight of both
columns “C” and “D” is 1 kN/m.

You must demonstrate your answers through detail calculations and relevant tributary
diagrams. [2 marks]

Author: Dr Sawekchai Tangaramvong (July 2013) 4 of 5

Figure 1

6 m 6 m

Typical beams “A”

P
ri

m
a

ry
b

e
a

m
“

B
”

3
@

3
m

=
9

m

Column “C” Column “D”

Author: Dr Sawekchai Tangaramvong (July 2013) 5 of 5

Question 2

For the floor plan shown in Fig. 2, the permanent loads consist of:

o Concrete (2-way) slab with depth of 200 mm = 4.8 kPa
o Ceilings and services (allowing 500 mm headroom) = 0.3 kPa
o Ceramic floor tiles = 0.15 kPa
o Partitions = 1.5 kPa

Both secondary and primary beams “A” and “B” are simply supported, and they are provided
with fire spray (i.e. permanent load of 0.6 kN/m) for 2 hrs fire resistivity. Assume the self-weight
of all steel beams “A” and “B” is 1 kN/m.

As structural engineers, your tasks are to:

(vi) Determine the design (factored permanent and imposed) loads for steel beam
(secondary beam “A” with its span of 6 m) and girder (primary beam “B” with its span of
9 m) for the office building shown in Fig. 1 (see AS1170.1 for imposed loads) that
complies with AS1170.0 for:

i. Strength limit state

ii. Serviceability limit state (short term and long term)

You must demonstrate your answers through detail calculations and relevant tributary
diagrams. [2 marks]

[Hints: The concept is similar to that in Question 1, except the 2-way slab system is
now involved.]

(vii) Draw BMD and SFD of these beams “A” and “B” for Strength limit state, and determine
the maximum design moment (M

*
) and the design shear (V
*
). [1 mark]

Author: Dr Sawekchai Tangaramvong (July 2013) 6 of 5

Figure 2

6 m 6 m

Secondary beam “A”

P
ri
m
a
ry
b
e
a
m
“
B
”

2
@

4
.5

m
=

9
m