The following readings were recorded during a tensile
test of a mild steel specimen 24mm, wide by 10 mm thick and with
gauge length of 200 mm.
Force (KN)= 16 32 48 64 68 72 76 79
Elongation =0.066 0.133 0.198 0.264 0.281 0.304 0.355 1.125
Force (KN) =76.8 83.7 103.8 111 112.8 108 96
Elongation = 3.75 6.66 15.00 25.00 36.5 45.0 50.0
The test piece fractured at a 50 mm elongation. Plot a
load-extension diagram using the following...
Though steel have high tensile strength, detailing is necessary
not only for the steel structures but also for the RCC members as
it is the translation of all the mathematical expression’s result.
For that matter, coin a comprehensive definition for detailing of
reinforcement bar (steel).
Research different types of composite steel members and
structures used throughout the construction industry. You should
discuss composite steel-concrete slabs, beams and columns. Find and
discuss industry case studies of the use of composite members and
how they were beneficial to the structure.
An engineer who is studying the tensile strength of a steel
alloy knows that tensile strength is approximately normally
distributed with sigma= 60 psi. A random sample of 12 specimens has
a mean tensile strength of 3450 psi.
a) Compute a two-side confidence interval on the maen tensile
strength at a 95% confidence level.
b) Test the hypothesis that the mean strength is 3500 psi at
alfa=0.05, and provide a conclusion statement.
c) If we keep the signifiance level constant...
1) An engineer who is studying the tensile strength of a steel
alloy knows that tensile strength
is approximately normally distributed with σ = 60 psi. A random
sample of 12 specimens
has a mean tensile strength of 3450 psi.
a) Compute a two-sided confidence interval on the mean tensile
strength at a 95%
confidence level
b) Test the hypothesis that the mean strength is 3500 psi at α=
0.05, and provide a
conclusion statement
c) If we keep the...
An engineer who is studying the tensile strength of a steel
alloy knows that tensile strength
is approximately normally distributed with σ = 60 psi. A random
sample of 12 specimens
has a mean tensile strength of 3450 psi.
a) Compute a two-sided confidence interval on the mean tensile
strength at a 95%
confidence level
b) Test the hypothesis that the mean strength is 3500 psi at α=
0.05, and provide a
conclusion statement
Sustainable construction has been high on the agenda of the
industry for a number of years. You have been asked to give your
view on:
i. Is modern construction sustainable? You must present more
than one side to a discussion of this question, finally coming to a
conclusion that you support with arguments and with reference to
case studies. Your case studies may range in scale and purpose.
ii. How have modern materials improved the sustainability of
construction in recent...
• derive the equations for tensile stresses in the
bottom of steel for
a. superposion beam
b. composite beam
• tell the differeces between them
• how the RC deck is composited with the steel beam?