Question
In: Mechanical Engineering
Determine the required size (area, nominal diameter, and Bar No.) of the three reinforcing steel bars...
Determine the required size (area, nominal diameter, and Bar No.) of the three reinforcing steel bars used in a 9 in. wide and 12 in. deep concrete beam to assure the beam fails in compression of the concrete and the steel reinforcement reaches its yield strength at the same load. Assume that the ultimate compressive strength of the concrete is 4,000 psi and the yield strength of the steel is 30,000 psi.
Solutions
samet mamat answered 2 years agoRelated Solutions
Design the numbers of reinforcing bars required for negative and positive moment that can be utilized...
Design the numbers of reinforcing bars required for negative and
positive moment that can be utilized for an overhanging beam with
service loads (DL + LL) excluding weight of the beam 40 kN/m
loading. The distance separating the supports hinge and roller is
7.20 m while from the roller to the free end is 1.8 m. The given
dimensions for the beam are breadth b = 300 mm and depth d = 550
mm. The strengths of the concrete and...
Ziggy sells and delivers a semi-trailer load of steel reinforcing bars to Barb. Unless otherwise agreed, it is Ziggy’s obligation to furnish some means of lifting the steel bars of the semi-trailer.
True or False:Ziggy sells and delivers a semi-trailer load of steel
reinforcing bars to Barb. Unless otherwise agreed, it is Ziggy’s
obligation to furnish some means of lifting the steel bars of the
semi-trailer. Timory agrees to sell to Art some copper valves that are in the
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The company manufactures chocolate bars with nominal weight of 115 g per bar. In order to...
The company manufactures chocolate bars with nominal weight of
115 g per bar. In order to to avoid risk of short changing, the
mean weight is set as 117 g and SD of 2 g.
Assuming that 40 chocolate bars are selected, 97% of the sample
means will be between what value? ( give the upper and lower
value)
The company manufactures chocolate bars with nominal weight of 115 g per bar. In order to...
The company manufactures chocolate bars with nominal weight of
115 g per bar. In order to to avoid risk of short changing, the
mean weight is set as 117 g and SD of 2 g.
What is the probability that :
(a) a random chocolate bar weighs between 116 gram and 120
gram?
(b) a particular sample mean would be less than 116.5
millimeters chosen of 40 random samples of chocolate bar.
Discuss the actual bar diameter with their rib area results and explain the relevance, confidence or...
Discuss the actual bar diameter with their rib area
results and explain the relevance, confidence or risks ir portends
to design reinforced concrete concrete structures in bending in
terms of tension area and interfacial bonding between steel bars
and concrete. what are the relevant standards on this?
A bearing used in an automotive application is required to have a nominal inside diameter of...
A bearing used in an automotive application is required to have
a nominal inside diameter of 1.5 inches. A random sample of 25
bearings is selected and the average inside diameter of these
bearings is 1.4975 inches. Bearing diameter is known to be normally
distributed with standard deviation 1inch. (a) Test the hypotheses
1.5 versus 1.5 using 0.01 The true mean hole diameter Entry field
with correct answer significantly different from 1.5 in. at alpha
equals 0.01. (b) What is...
Determine the required shear reinforcing for a simply supported concrete beam 7 meters long with a...
Determine the required shear reinforcing for a simply supported
concrete beam 7 meters long with a cross section of 500 millimeters
in depth and a width of 380 millimeters. Use fc = 35 MPa fy = 400
MPa. The longitudinal steel uses one row of 25M bars. The specific
live load is 29 kKn/m. The beam is not exposed.
An austenitized 70 mm diameter 4340 steel bar is quenched in agitated H2O. Predict what the...
An austenitized 70 mm diameter 4340 steel bar is quenched in
agitated H2O. Predict what the Rockwell C hardness of the bar will
be at (a) its surface, (b) 3/4-R, (c) midway between its surface
and center and (d) at its center
(a) S:
_53_____
(b) 3/4R: __52_____ (c) MR: __52_____
(d)
C: __51____
Please show work
You have a nominal 3-inch diameter steel pipe, 15 feet high that is embedded into a...
You have a nominal 3-inch diameter steel pipe, 15 feet high that
is embedded into a concrete foundation. Neglecting the weight of
the column, answer the questions below:
A. What is the maximum vertical load this pipe can
support/critical load (#)?
B. If a vertical load of 2,000#s and a horizontal force of 100#s
are applied at the top of the column, what are the maximum combined
tensile and compressive stresses (psi) where the column meets its
foundation? Are they...
Nitrogen gas is compressed isothermally at 250K from 1.0 bar to 150 bars. Determine the change...
Nitrogen gas is compressed isothermally at 250K from 1.0 bar to
150 bars. Determine the change in enthalpy and entropy using:
a. Redlich-Kwong equation of state
b. Using tabular superheat data
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