Homework Statement
A 0.5m high and 100mm diameter post is to be made from concrete reinforced by 10mm diameter steel rods. How many steel rods should be used if the axial stiffness of the post is to be at least 2000kN/mm?
Homework Equations
n = number of steel rods
D = diamater of the post
d...
Homework Statement
Please see the attachment, Q2
Homework Equations
\sumFx = 0
\sumMA = 0
The Attempt at a Solution
for part A, i get 14123N as the tension, moment at C about B, 9.8x1000x5 = 49050
49050/7 = 7007N
tan-1 (4/7) = 29.74o
TSin(29.74) - 7007 = 0
TSin(29.74) = 7007...