Note :- consier minimum size of ISA 50$\times 50\times$6mm for truss

used min size of bolt d=16m

do-18mm e=30mm, P=40mm

a) Design at Tie member: consider 2 ISA B/B of 10mm the G.P

1) Design of bolted connection Volsb=$\frac{Fub\times Anb\times Nb}{\sqrt {3}\gamma mb}$=$\frac{2\times 157\times400}{\sqrt{3}\times1.25}$

=58.01$\times10^{3}$n

Kb=[$\frac{e}{3do},\frac{p}{3do}-0.25, \frac{Fub}{Fu},1]$min

=[0.56,0.49,0.98,1]min

Kb=0.49

Vdpb=2.5$\times5b\times …