Clarity factor
CEE 4730/6730
Quiz #2, January 31, 2012
Correctness
Quiz Score
Name_
L/2
L/2
Uniformly distributed
load w in units of
force per unit length
of beam.
Derive the expression for the bending moment in the beam at the center of the span.
This ca
The sig-fig issue can get complicated depending on how many steps
one takes in the calculator before pausing to write-down an
intermediate value. In general I am more interested in the final
answer having a rational basis in precision.
Clarity factor
CEE
CEE 4730/6730 Reinforced Concrete Design
Quiz #24, September 20, 2016
Name _
The graph below is a record of the beam tests performed in lab on September 15&16, 2016.
Vertical
Axis is
load in
Kips
Horizontal
Axis is
deflection
in inches.
Clearly identify w
Clarity factor
CEE 4730/6730
Quiz #26, September 20, 2016
Correctness
Quiz Score
Name_
Wind pressure
Wind suction
7.9 Kips
4.9 Kips
12.00 ft.
15.8 Kips
9.8 Kips
15.8 Kips
9.8 Kips
Building dimension
coming out of the
plane of the paper =
75.00 feet
12.00
CEE 4730/6730
Quiz #21, September 15, 2016
Name _
Consider the following situation:
24.00 ft.
Total Factored Load = 7.8 kip per linear foot
including all self weight.
22.00 ft.
Select the spacing of stirrups for the maximum shear case, and for the code mi
Clarity factor
CEE 4730/6730
Quiz #18, September 13, 2016
Note Cosmic Symmetry
in Quiz No. and Date
Correctness
Quiz Score
Name_
Project Phases I, II, and III
Consider the multi-span continuous slab with factored loads as shown below:
96 lb/ft LL
120 lb/f
Clarity factor
CEE 4730/6730
Quiz #6, August 30, 2016
Correctness
Quiz Score
Name_
1. (2 points) Consider a one-way reinforced concrete slab, with a span of 17-feet and 6-inches.
Using a span/depth ratio of 28.00, what is your recommended slab thickness i
Clarity factor
CEE 4730/6730
Quiz #8, August 30, 2016
Correctness
Quiz Score
Name_
fc = 4,000 psi=4.00 ksi=4.00x103 psi
Ultimate Moment Capacity of a 12 wide slab strip
Reinforcing = #5 bar @ 14.00
Compression Face
a
d
5.00
C
Area of each bar = 0.310 in2
Clarity factor
CEE 4730/6730
Quiz #9, September 1, 2016
Correctness
Quiz Score
Name_
fc = 5,000 psi=5.00 ksi=5.00x103 psi
Ultimate Moment Capacity of a 12 wide slab strip
Reinforcing = #6 bar @ 16.00
Bar diameter = 0.750 inch
Area of each bar = 0.440 in2
CEE 4730/6730
Quiz #20, September 13, 2016
Name _
Yet more shear design
44 feet
A
Total Factored Load = 5.0 klf
including all self weight.
wl/2 =
110 K
Beam is fixed-fixed, uniformly loaded.
Reaction at each end = wl/2
A
wl/2 =
110 K
12
d=
18.5
Section A-
CEE 4730/6730 Quiz 5, August 30, 2016
Name_
Consider the multi-span, continuous beam shown below. All spans are loaded with a combined
(Factored DL + Factored LL) = 500. lb/ft2.
Span length = 17.0 feet
LL
DL
A
B
C
D
E
F
G
1. Circle the value below that is
CEE 4730/6730
Quiz #19, September 13, 2016
Name _
Consider the following situation:
20.00 ft.
18.00 ft.
Select the spacing of stirrups for the maximum shear case, and for the code minimum case. Start
by drawing the shear diagram.
18 feet
A
Total Factored
CEE 4730/6730 Reinforced Concrete Design
Quiz #15, September 8, 2016
Name _
Below is a view from the underside of a beam and slab floor system. The slab is 6 inches thick.
Beam
webs
40 ft
As explained course handout, this means
40 feet and zero-eights of
Clarity factor
CEE 4730/6730
Quiz #12, September 6, 2016
Correctness
Quiz Score
Name_
Ultimate Moment Capacity of a 24 wide Rectangular Beam
fc = 5,000 psi=5.00 ksi=5.00x103 psi
Reinforcing = Four #9 bars
Bar diameter = 9/8 inch
Area of each bar = 1.00 in
Clarity factor
CEE 4730/6730
Quiz #7, August 30, 2016
Correctness
Quiz Score
Name_
Ultimate Strength Moment Capacity
Datum Line
a
d
8.00
C
fc = 4,000 psi
Ec = 57,000 (fc)0.5 psi
Es = 29,000,000 psi
N.A.
7.00
Reinforcing = #6 bar @ 7.00
Area of each bar =
CEE 4730/6730 Reinforced Concrete Design
Quiz #16, September 8, 2016
Name _
The sketch below shows a 2-span, continuous slab, looking down from the top. The slab is
supported by beams from below, and the beams are supported by columns below the beams. The
CEE 4730/6730 Reinforced Concrete Design
Quiz #17, September 13, 2016
Name _
Below is a view from the underside of a beam and slab floor system. The slab is 6 inches thick.
Beam
webs
40 ft
fc = 5000 psi
1 = 0.800
fy = 60,000 psi
Area of #9 bar = 1.00 in2
Clarity factor
CEE 4730/6730
Quiz #3, January 31, 2012
Correctness
Name_
3 Sig. Fig. Max
Centroid
4.00 in.
Plank Data
Cross sectional Area, A
Moment of Inertia, I
Section Modulus, Stop to the top of plank
Section Modulus, Sbtm to the bottom of plank
Numbe
Clarity factor
CEE 473/673
Quiz #4, January 31, 2012
Correctness
Name_
3 Sig. Fig. Max
Centroid
3.50 in.
Plank Data
Cross sectional Area, A
Moment of Inertia, I
Section Modulus, Stop to the top of plank
Section Modulus, Sbtm to the bottom of plank
Number
Clarity factor
CEE 4730/6730
Quiz #5, February 2, 2012
Correctness
Quiz Score
Name_
Story Problems! Yaaaay!
1. (2) A structural engineer has worked on a project for 15 hours at a wage rate of $30.00 per
hour. Her design firm has negotiated the clients app
CEE 473/673
Quiz #6, September 7, 2010
Name _
Clarity
Correctness
Consider a 1-foot width of non-standard 7-inch, solid masonry wall, spanning vertically 18 feet
from floor to floor. Compute the net tension stress at mid height induced by wind from an F4
Clarity factor
CEE 473/673
Quiz #7, February 7, 2012
Correctness
Quiz Score
Name_
Precast plank spans simply from wall to wall
160 psf
Symbol for pinned (zero
moment) connection
All loads uniformly distributed
160 psf
12 feet
Weight of precast plank
and t
Clarity factor
Correctness
Quiz Score
CEE 4730/6730
Name_
Quiz #10, February 14, 2012
1. In a laboratory experiment similar to the one you just performed, at the instant
of flexural failure of the wall the height of the water in the manometer tube,
measur
CEE 4730/6730
Quiz #11, February 14, 2012
Name _
Clarity
Correctness
Compute the moment in the wall at the point of flexural failure as indicated.
Compute
moment
here
35.0 inches
feet
75.0 psf
Average width of wall
= 24.0 inches
21.0
inches
Deflected shap
CEE 473 Quiz 12, September 28, 2010
Name_
Combined Load Patterns (2 points each)
1. Fill-in the blank boxes to indicate the LL pattern for peak negative moment at D.
LL
DL
A
B
C
D
E
F
G
2. Fill-in the blank boxes to indicate the LL pattern for peak negati
Clarity factor
CEE 4730/6730
Quiz #14, February 21, 2012
Correctness
Quiz Score
Name_
Critique any obvious errors in this construction drawing (plan view) of a simple masonry bearing wall building that incorporates 8inch nominal concrete masonry units. Yo
Clarity factor
CEE 4730/6730
Quiz #16, February 23, 2012
Correctness
Quiz Score
Name_
Ultimate Strength
Datum Line
a
d
8.00
C
N.A.
T
1.50
12.00
fc = 4,000 psi
Ec = 57,000 (fc)0.5 psi
Es = 29,000,000 psi
n = 10
Reinforcing = #6 bar @ 7
Area of each bar =
CEE 473/673 Reinforced Concrete Design
Quiz #20, March 13, 2012
Name _
Below is a view from the underside of a beam and slab floor system. The slab is 6 inches thick.
Beam
webs
40 ft
fc = 6000 psi
1 = 0.75
fy = 60,000 psi
18 ft. Typ beam spacing
Stresses