A strut in a roof truss is 3 m long and consists of ISA x 100 x 100 x 6. Determine the factored strength of the strut if it is connected on both sides by 12 mm gusset plate by (a) one bolt (b) two bolts (c) welding

Prove that the trusses shown are statically determinate and solve for the force members required for each item. Show your complete solution with figures.

Determine the force of the members for the space truss shown in the figure. Joints A and B are supported by ball-and-socket while Joint C is supported by short link along z-axis. Indicate whether member is tension (T) or compression (C). 2m y Sm Az By BX Bz PAR Ax CSXScanned with Ca canner a SISU KN 15m 1 2117

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A compound girder consists of a 45 cm by 18 cm steel joist, of weight 1000 N/m, with a steel plate 25 cm by 3 cm welded to each flange. If the ends are simply-supported and the effective span is 10 m, what is the maximum uniformly distributed load which can be supported by the girder? What weld thicknesses are required to support this load? Allowable longitudinal stress in plates = 110 MN/m² Allowable shearing stress in welds = 60 MN/m² Allowable shearing stress in web of girder = 75 MN/m² 2.4cm -18cm 14cm 45cm