Problem 2 a vertical post ab is embedded in a

Problem-2
A vertical post AB is embedded in a concrete foundation and
held at the top by two cables (see figure). The post is a hollow
steel tube with modulus of elasticity 200 GPa, outer diameter
40 mm, and thickness 5 mm. The cables are tightened equally
by turnbuckles. If a factor of safety of 3.0 against Euler
buckling in the plane of the figure is desired, what is the
maximum allowable tensile force Tallow in the cables?
Problem-3
The hoisting arrangement for lifting a large pipe is shown
in the figure. The spreader is a steel tubular section with
outer diameter 70 mm and inner diameter 57 mm. Its
length is 2.6 m and its modulus of elasticity is 200 GPa.
Based upon a factor of safety of 2.25 with respect to Euler
buckling of the spreader, what is the maximum weight of
pipe that can be lifted? (Assume pinned conditions at the
ends of the spreader.)
Problem-4
The structural steel [ E = 29,000 ksi] column shown in Figure is fixed
at its base and free at its upper end. At the top of the column, a load
P = 35 kips is applied to the stiffened seat support at an eccentricity
of e = 7 in. from the centroidal axis of the wide-flange shape.
Determine:
a) The maximum stress produced in the column.
b) The lateral deflection of the column at its upper end.

Combined Loadings
Problem-1
For the vertical flexural member shown, determine the principal stresses and
the maximum shear stress acting at points H and K , as shown. Show these
stresses on an appropriate sketch for each point.
Answer:
For point H
For point K
Problem-2
A shear wall in a reinforced concrete building is subjected to a
vertical uniform load of intensity q and a horizontal force H , as shown
in the first part of the figure. (The force H represents the effects of
wind and earthquake loads.) As a consequence of these loads, the
stresses at point A on the surface of the wall have the values shown in
the second part of the figure (compressive stress equal to 1100 psi and
shear stress equal to 480 psi).
a) Determine the principal stresses and show them on a sketch
of a properly oriented element.
b) Determine the maximum shear stresses and associated normal
stresses and show them on a sketch of a properly oriented element.
Answer:

Problem-3
A sign of dimensions 2.0 m x 1.2 m is supported by a hollow circular pole
having outer diameter 220 mm and inner diameter 180 mm (shown in
Figure). The sign is offset 0.5 m from the centerline of the pole and its
lower edge is 6.0 m above the ground. Determine the principal stresses and
maximum shear stresses at points A and B at the base of the pole due to a
wind pressure of 2.0 kPa against the sign.
Answer:
At point A
At point B