A simply supported beam is used to carry the uniformly distributed load of magnitude 3 W and the concentrated load W. What is the maximum allowable value of W if the working stress in bending is 122 MPa? b = 180; d = 318 Round your answers to 2 decimal places.

1.8-4 Lateral bracing for an elevated pedestrian walkway is shown in the figure part (a). The thickness of the clevis plate 1. = 16 mm and the thickness of the gusset plate t = 20 mm [see figure part (b)]. The maximum force in the diagonal bracing is expected to be F = 190 kN. If the allowable shear stress in the pin is 90 MPa and the allowable bearing stress between the pin and both the clevis and gusset plates is 150 MPa, what is the minimum required diameter dmin of the pin? Pin Diagonal brace (a) (© Barry Goodno)

Draw the FBDs of the following members and explain the components

2x +5x - 3 1. lim 6x² - 7x+2 (2) X -

DO NO OWAVE www.oukpak.com F06 unic 30KN 150 KN 20KN 3m =30" SOLVE FOR ACL SUPPORT 2m HINGE REACTIONS LN DICATE THE DIRECTICNS e UNITC 20 A B im

Q.2 Three bars each made of different materials are Steel Copper Ecu- 120 GPa ag = 12(10-)/C a = 21(10-")/"C a = 17(10-)C Acu = 515 mm? Brass connected together and placed between two E= 200 GPa E= 100 GPa walls when the temperature is T1 = 12°C. %3D Detemine the force exerted on the rigid A = 200 mm? Ape- 450 mm supports when the temperature becomes T2 %3D 18°C. The material properties and cross- 300 mm 200 mm 100 mm sectional area of each bar are given in the figure. (Marks = 10, CLO 3)

Theory of structure Influnce Lines

intel com Deter mine all force members O* the truss Shown 3m bo0 N Cx - 600N

Test#1 -zzen-zax AlpQLSdM75VMOVqbMa1WtS9n99RYc6PifeGUTpVBOluyMUUVYQgqqA/formResponse YouTube Replace the three forces which act on the bent bar by a force-couple system at *.the support point A 2100 lb 4' 1500 lb •A B. 30° C. 2' •E. 800 lb 3' oogle

Evaluate: /8(*? - 1)xdx