A rectangular beam has a width of 280 mm and an effective depth of 500 mm. It is reinforced with 4-36 mm diameter bars at the tension side of the beam placed 75 mm above the bottom of the beam. f. = 25 MPa, f, = 414 MPa, E, = 200,000 MPa. Which of the following is the pominal mem ent canacity of the h eam

135 mm 85 mm σ, = -58 MPa E = 105 GPa D = 0.33 Beer & Johnston & DeWolf & Mazurek 2.86 (a) For the axial loading shown, determine the change in height and the change in volume of the brass cylinder shown. (b) Solve part a, assuming that the loading is hydrostatic with Ox= Oy = O₂ = -70 MPa

Bar ABC is rigid and rotates freely about B. The loads consist of a point load and a uniform temperature change in both bars CD and EF. Determine the temperature change (AT) at which points A and E first come into contact. Report your answer rounded to the nearest degree. 100 in initial gap = 0.11 in F T E A = 2.0 in² AEF EEF = 12,000 ksi aEF LEF 100 in = 13.5 x 10-6 1/°F = 50 in B 14 k 100 in D с ACD= 1.5 in² ECD CD= 6.5 x 10-6 1/°F = 29,000 ksi = 150 in LCD Y Z

P = 300N ، a=140mm , b=240mm , d=26mm