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Unformatted text preview: Seat # Name OVEN 305 023 C. a General examination rules: 1) Do not put your completed work on a desk or on the ﬂoor next to you or anywhere it can be seen by others. If
any part of your work can be seen by others it will be confiscated and you will not be permitted to rework
those problems. Place it face down on our desk under our existin work. 2) Please remove your hat. If it is part of your head, turn it around backwards. 3) Please believe this: if your work not legible, or if I cannot follow your logic at a glance, or if you use a #9 nail
for a pencil with 2 point font, it will receive no credit. This paper will be written to acceptable engineering
standards or it will receive no credit. 4) Please read the problem very carefully. Giving me the correct answer to something I didn’t ask is worth zero
points. 5) Do not unstaple this exam. You are permitted to work on the back of any page. Simply so state, so we won’t
miss any of your work. Ethical Standards: Upon accepting admission to Texas A&M University, a student immediately assumes a commitment to
uphold the Honor Code, to accept responsibility for learning, and to follow the philosophy and rules of the
Honor System. Students will be required to state their commitment on examinations, research papers, and
other academic work. Ignorance of the rules does not exclude any member of the TAMU community from
the requirements or the processes of the Honor System. "On my honor, as an Aggie, I have neither given nor received unauthorized aid on this exam." Signature of student Please do not open this exam until you are told to do so . Miscellaneous equations for circles:
Area = pi*r"2
Moment of inertia = pi*r"4/4
Polar moment of inertia = pi*r"4/2 Propertias of ﬂawedSteel Shams
(US. Guammary Uraéts) W Shapes
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“3 4.58 5.0] 5.090 0.3630 0.2%] I 25.3 8.5] 213 Z iii 3.09 L2? WWW E 3.33 4.16 . 4.060 {3.345 [3.230 “.3 33.45: E32 3.36 L93 “)0 ”WV. wimﬁrswﬂzmgs: 53mm i9 ﬁxaiglauxw by L199 lunar W Wham/ed £13.! 1hr. nomima 1199124?! in iﬂﬁhﬁﬁ 211.194 H39 u’éight in pounﬁs pm 31m. Problem 1) etermine the average shear stress between a pair of vertical boards glued to a pair of ho zontal ._a ;. . as shown below. The figure shows an end View of the beam. Glue lines are vertical
& T( ”between the boards. Use t = 1”. The bending moment on the beam is eight I’ kip feet and the vertical shear is twenty kips, both found from a shear and
2' Zmoment diagram (not shown). 10' )O
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Py Both the loads and points A, B,
and C are eight feet from the
ends of the sixteen foot long
beam. The beam is a W10X33.
State if the final stress you
determine is tensile or
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beam to carry a concentrated load of twenty kips at the center of the beam. Use a maximum allowable
bending stress of thirty ksi. The beam is twelve feet long. Include the weight of the beam once you have
determined a first trial shape and make sure the beam is still satisfactory. m s 1 ,f >
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axial load of twenty six kips. The column is a ﬂagpole and is fourteen feet long. Use E for steel equal to 29,000 ksi. q 4’ +h \ €
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given in this exam, design the lightest simply supported wide ﬂange beam to carry a concentrated load of
ten kips at the center of the beam. "The beam is thirty six feet long. Include the weight of the beam once
you have determined a first trial shape and make sure the beam is still satisfactory. \ “LICK M €me w
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3:30 ‘0 Problem 1) Using a maximum allowable bending stress of thirty six ksi, and using only the beam tables
given in this exam, design the lightest simply supported wide ﬂange beam to carry a concentrated load of
ten kips at the center of the beam. The beam is thirty six feet long. Include the weight of the beam once
you have determined a first trial shape and make sure the beam is still satisfactory. 'E’éf’ﬂﬁfa... <L\C:M"§%‘t‘>
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vertical boards glued to a pair of horizontal boards as shown below.
The figure shows an end View of the beam. Glue lines are vertical
between the boards. Use t = 2”. The bending moment on the beam is
eight kip feet and the vertical shear is thirty kips, both found from a
shear and moment diagram (not shown) drawn for the beam. 5/ Problem 3) A column is to be designed as a ﬂagpole and is twelve feet long. Use E for steel equal to 29,000
ksi. Using only the wide ﬂange table given in this quiz, design the lightest column to support an axial load of 150 kips. 60:.an E ‘3 1677000 ‘18; 4 q, , i
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Problem 4) Points A, B, and C, and both of the loads are 10 feet
from the ends of the twenty foot
long beam. Determine the stresses
in the beam shown at point C
(located at the outer edge of the
ﬂange). The beam is a W8X58.
State if the final stress you
determine is tensile or compressive. Use Py = 16 k and
PX = 10 k. \0 Problem 5) Determine ”the moment in the center of the beam shown. Use L = six feet, M = forty k—ft,
W = six k/ft, and P = fifty kips. Hint: Do not draw a shear and
moment diagram. \o a? Problem 5) Determine the moment in the center of the beam shown. Use L 2 six feet, M = forty k—ft,
W = six k/ft, and P = fifty kips. P Hint: Do not draw a shear' and
moment diagram. 2Mg>=—t2.<30¢+)—Llo+sam + 710,1») P ”093$ 40% r U ‘2\"3€)'06/i1 Hr? /
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shearing stress of fifteen ksi. ' “,1: mm
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 Spring '08
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