Date post: | 22-Feb-2018 |
Category: |
Documents |
Upload: | james-k-kirahuka |
View: | 214 times |
Download: | 0 times |
of 16
7/24/2019 Exam Solution AE1130 7 November 2013
1/16
Space
above not to be
f i l l e di n
by the student
iii3()II EngooiearDQigIMlacteDiiiics^
Sttattao
1
K l o w e G n n l b e r 2 i ;
M o
1.
Las l t m iame
a o id
BoiiDitDaD^
> O D n D D n n a a D D D P n D D n D D D D D O D D D D D O D D D I
Only Ihainidl O
the
a nswer sh ee t s
Other sheets will
not
be accepted
lame a nd s t u d y
n y m b e r on
ev ery page
Sheets without name
or
study number will
not
be accepted.
Wr i te re levan t ca l cu la t i ons
on the
ans we r shee t
Use the blank sides
of
the answer sheets
if
necessary.
Answers without calculations
or
motivation will
not
be taken into
account.
Use possible checks
to
avoid calculation errors
The orderof answering the questions isfree
NOTE: th i s ex am con s is t s of 5 p rob l em s .
The nea tnessofthe
p resentat ion
of the answers
will be considered in the ma rking.
A l l a nsw ers mu s t
be
g i v e n m e n t i o n i n g
the
c o r r e c t
SI
7/24/2019 Exam Solution AE1130 7 November 2013
2/16
Answer sheets Student no :
7 November 2013 p,
Exam AE1 130-I: Statics Name: H o ^ Q g r n o o d g -
F rob l em 1 WeigSit 2 .0 = approic. 35 mDnytes)
The truss in the f igure below is loaded by a force P in A. The truss is supported by a
rol ler support In H and a hinged support in L. Al l relevant dimensions are given in the
figure below,
Het vakwerk in de onderstaande figuur wordt belast door een kracht P in A. Het vakwerk
heeft een roloplegging in H en wordt scharnierend ondersteund in L Alle relevante
afmetingen staan in de onderstaande figuur.
Quest ions
- 0 -
L
H
a) Determ ine the reactions in H and L and draw these In the f igu re In the d irection
in whlch they act on the structure in real i ty.
Bepaal de oplegreacties in H en L en teken deze in de figuur in de richting zoals
ze in werkeH jkheid op de constructie werken.
^f^y - L H L H =
O
Xl
_ -
_
-
p.
__ ]ri._HAi_.a ^ ^ ^
-__2.Q l v _ ^ j ^
=
L y
-V H v
Page 2 of 16
7/24/2019 Exam Solution AE1130 7 November 2013
3/16
Answer sheets
Student
no:
7 November 2013
Exam AE I130-1: Statics
Name: r\3
c J g r
rOQc ^ e l
(prorolem
1contimiyec
b) Identify the zero-force members
in the
structure.
Identificeer denulstaven indeze constructie.
c) Calculate the normal forces in members AB, AH, AJ, and CG usinga
method ofyour choice with
the
correct sign
for
tension
(+) or
compression
(-)
and include these
in the
table
on the
next page.
All
results must
be
supported
by
calculations.
Bereken de normaalkrachten
in
de staven
AB,
A H, AJ
en
CGmet
een
methode naarkeuze
met
het juiste teken voor trek
+) en
druk
-) en
vermeld ze
In
de tabe l op
de
volgendepagina. Alle resultaten moe ten
met
berekeningen worden onderbouwd.
O Vak
L
.
V
~~^co
1 ^ - ^ L J
Wxjk
.-L....n.2[S
Page
3 of 16
7/24/2019 Exam Solution AE1130 7 November 2013
4/16
Answer sheets
Student no:
7 November 2013
Exam
A E I
130-1: Statics
Name
(problem
1 cont inued )
Q>JsJ ex =
5 F ^ V
: 0
^
M f t H ' ^ ^
^
^ ' ' P
- U - ^
\6\^[
ft--
3
*---- I
NAB NAH
NcG
Page 4 of 16
7/24/2019 Exam Solution AE1130 7 November 2013
5/16
7/24/2019 Exam Solution AE1130 7 November 2013
6/16
Answer sheets
Student no:
7 November 2013
Exam AE I130-1:Statics
Name: ^ n ^ L J ^ e r n ^ o g j i ^ l
(que stion 2 contimuec )
--....aX....... 6 .
^ f-
-- - . X - \ s
^ f ^ i ^ ^ W
^^^^J^A.Q1\C> k j : . . io
Ujo j
J S ,
.. ....2...
b)
Calculate the forces acting In mem bers S l , S2 , and S3 as a fun ction o f W.
Bereken de krachten die in staven Sl, S2 en S3 werken als een functie vanW
-5,
F r g s u ^ A - a o V forc^ o n U
Abe rope
. 0 .
/ 3 ^
T M
Page 6 of 16
7/24/2019 Exam Solution AE1130 7 November 2013
7/16
Answer sheets Student no:
7 November 2013
Exam AE1130-I: Statics
Name: ftfSSU>eronod\
[question 2 continued) ^
- w V
o
o j -
- 2 - G )
lEf^Li_ j:. -
h l
L r o f o
uy
;
S
3
^
:
: ^ I
? . . U 3
3 )
_ _ _
y_
- - - v - r - i - ^ - - - - v g -
10
Page 7 of 16
7/24/2019 Exam Solution AE1130 7 November 2013
8/16
Answer sheets
7 November 2013
Exam AE I130-1: Statics
Student no:
Name:
FrobDeimi3 WeSght 1.5 - a p p rox . 3 0 m i ny t e s )
a) Consider the structure depicted be low. Which shear force diagram shown
below is the correct one? Motivate your answer.
Beschouw de onderstaande constructie. Welkdwarskrachtendiagram is
correct? Mo tiveer uw antwoord.
I kN ,
A
ni
i
4kN
3 m
IkN
2kN 2kN
b)
IkN
IkN
)
IkN
IkN
2kN 2kN
c)
1 kN
1 _
i
S'
4kN
1 kN
o s
VWrc fe
OQ
e x l .
^ d .
^oTcai
on
ib
. end..
^ (?pc
7/24/2019 Exam Solution AE1130 7 November 2013
9/16
Answer sheets Student
no:
7 November 2013
Exam AEI130-1:Statics Name: P > O S U ) g r n n o c i e \
([Problem
3 cos i t lnyed)
b)
Four bending moment diagrams
are
drawn
to the
same scale
in the
picture below. Which
two
bending moment diagrams match
the
same
shear force diagram? Motivate your answer.
Viermomentendiagramm en zijn
op
scliaalgetekend in
de
onderstaande
figgur
WellvVK ido-^t
l c a ^
^PQJSr^ ,^r\Qr\ Oz _
\.J^^^^ea,r
S o r c e
dia^fa/^ ^^^
Page
9 of 16
7/24/2019 Exam Solution AE1130 7 November 2013
10/16
Answer sheets
Student no:
7 November 2013
Exam AE1130-I: Statics
Name:
(Prolbiem
3 co t i t i n yed )
c) Four bending moment diagrams are given for column AB (values in kN m).
Which bending moment diagram matches the given load? Motivate your
answer.
Erzijn
vier
iriomentendiagrammen
gegeven voor kolom AB (waardes in
kNm) Welkmom entendiagram komt overeen met de gegeven belasting?
Motiveer uw antwoord.
2,5m 2,5m
K
m
M
10 kN ' ^ 10 kN
t l \ ^
2 m
( )
_ aV
-VViere v3
Q resrpuQhc u\4-
m
Page 10 of 16
7/24/2019 Exam Solution AE1130 7 November 2013
11/16
Answer sheets Student no:
7 November 2013
Exam AE1130 -I: Statics Name
Problem 4 (Weight 2 .5 - approx. 45 m inute s)
Consider the structure loaded as shown in the f igure below. The structure is supported
by a hinged s upp ort in A and a cable attached to the beam in C and to th e wal l In D. Al l
relevant information is given In the f igure below.
Beschou w de constructie met gegeven be iasting in de onderstaande figuur. De
constructie wordt scharnierend ondersteund in A en een l
7/24/2019 Exam Solution AE1130 7 November 2013
12/16
Answer sheets Studen t no :
7 November 2013
Exam
A E I
130-1:Statics Name: ftoSLOecrOode^
(problem 4 continued)
b)
Draw tine normal force, shear force and moment d iagrams (N- , V- and M-
d lagram)
ofthe
frame and use the correct deformation signs. Indicate al l
relevant values including al l ( local) extremes.
Teken de normaa lkrachten-, dwarskrachten- en mom entenlijnen (N-, V- en M-
l i jnen) voor de ligger en vermeld d aarbij de juiste vervormingstekens. Geef alle
relevante waardes aan, inclusief alle (lokale) extreme waardes.
I ] ^
i ^ ^ a .
N-diagram
7/24/2019 Exam Solution AE1130 7 November 2013
13/16
Answer sheets
Student no:
7 November 2013
Exam AE I130-1: Statics
Name:
B O ( jOerr rNodGi
Frolblem
5 (W e ig h t 2 .0
=
app rox . 35
m i ou t es )
The strength of a W350 x 57 rol led-steel I-beam Is increased by attaching a 229 mm x
19 mm plate to i ts upper f lange as shown. Al l relevant dimensions are given in the f igure
below.
De sterkte van een W 360 x 57 gewa lste stalen I-balk wordt vergroot door er een plaat
van afmetingen 229 mm x 19 mm aan de bovenste flens te bevestigen. Alle relevant
afmetingen zijn gegeven in de onderstaande figuur.
229mm
_
[_
C
w-7.9mm-
t=13.1mm
19mm
358 mm
172mm
Q u e s t i o n s
a) Calculate the mo m ent of Inert ia of the I-beam (exc lud ing the p la te ) abou t i t s
own centroid with respect to the horizontal axis paral lel to the plate.
Bereken het centrale hoofdtraagheidsm oment van de I-balk (zonder de plaat)
om zijn zwaartepunt ten opzichte van de horizontale as parallel aan de plaat
= \5,l2 ip mm**
Page 13 of 16
7/24/2019 Exam Solution AE1130 7 November 2013
14/16
Answer sheets
Student no:
7 November 2013
Exam AE1130-I: Statics
Name
( q u es t i on 5 c on t i nu ed )
b) Calculate the location ofthe centroid C ofthe remforced cross section
(plate plus I-beam) with respect to the bottom ofthe cross section.
Bereken de locatie van het zwaartepun t C van de versterkte doorsnede
(plaat plus I-balk) ten opzichte van de onderkan t van de doorsnede
1
oy)
/ k -
i r a doxA i.-^
ZS
^AM
3d _y5>
1
7/24/2019 Exam Solution AE1130 7 November 2013
15/16
Answer sheets Student no:
7 November 2013
Exam
AEI
130-1: Statics Nam e:
(qiuestion
5 con tinued)
c) Calculate the mo me nt of inert ia of the composite cross section with respect to
the horizontal axis paral lel to the plate that passes through the centroid C ofthe
composite cross section.
Bereken het centrale hoofdtraagheidsmo ment van de samen gestelde doorsnede
om de horizontale as parallei aan de plaat die door het zwaartepun t van de
samengestelde doorsnede gaat.
C
-
- - - - - -
-^^^ - Y
ziQ^i \ ( ^ 22^.1
.
_
i i
Page 15 of 16
7/24/2019 Exam Solution AE1130 7 November 2013
16/16
Answer sheets
7 November2013
Exam AE I130-1:Statics
Student
no:
Name:
Only this sheetmaybe usedat theexam
Area
M o m e n t s
of I ne r t i a
Triangle:
Rectangle:
Circle:
Thin-walled ring
Jc
=
7rR''/2
:
,
.A-
t
h
1
G.
r ;
M J
V
iassM o m e n t s of I ne r t i a
Thin
plate
1
2
1
2
/ =mb = ma
T h i n
Circular disk
2
Page 16 of 16