A 10-foot-tall concrete column (E-4200 ksi, Omax=2.4 ksi) is reinforced with four steel bars (E=29,000 ksi, omax=24 ksi) that run the full height of the column. If the steel bars each have a diameter of 0.75 inch, find the largest allowable value of P such that neither material exceeds its maximum stress. P P 10 ft a A B a 9 in. 19 in. Section a-a

The pins at B and D in the figure apply an axial load to diagonal bracing member BD. If BD has a rectangular cross-section measuring 0.50 in. X 2.00 in., what is the axial stress in member BD when the load is w0=220 lb/ft?

The bar in the figure below is made from standard acrylic plastic (E = 2960 MPa). Compute the total change in length, δof the shaft due to the loadings shown.

1. The steel shaft carries the axial loads as shown in the figure below. Determine the change in overall length of the shaft caused by these loads given that P = 3100 Ib. The cross-sectional area for each segment is shown in the figure. Use E = 29 X 10° psi for steel. %3D A = 0.75 in.² ЗР A = 1.0 in.² A = 0.5 in.? 2P -P 4P e-3 ft- - 5 ft 4 ft→