Week 8 Challenge

Q.1 AIM AND INTRODUCTION : APPLYING LOAD ON THE STRUCTURE IN STAAD

PROCEDURE : APPLYING FOLLOWING LOADS

APPLYING SELF WEIGHT

Applying 3kN/m member load on rafter

Applying 6kn/m of member load on secondary beams

Applying point load of 20kn load at node intersecting inclined member to top chord

APPLYING LOAD CASE L.L FOR LIVE LOAD

Applying 4kN/m member load on rafter

Applying 7.5 kn/m of member load on secondary beams

Applying load combination 1.5D.L+1.5L.L

Q.2 AIM AND INTRODUCTION : RUNNING THE ANALYSIS AND FINDING FOLLOWING RESULTS ON MEMBERS

PROCEDURE : APPLYING FOLLOWING METHODS

To find the maximum moment in secondary beams for load case 1.5D.L+1.5L.L

TO find the maximum axial force on the inclined bracing for 1.5D.L+1.5L.L the max force is 103.8KN-m

identify the bottom chord with max shear force and max bending moment for 1.5D.L+1.5L.L

Q.3 staad file is attached tension member is assigned as member truss hence removed

Q.4 FOR COLUMNS IF THE BASE IS FIXED KZ=1.2 AND IF THE BASE IS PINNED KZ =2

FOR BEAMS LZ IS TOTAL UNSUPPORTED LENGTH AND LY IS TOTAL LENGTH SUPPORTED

NOTE : STAAD FILE IS ATTACHED BELOW WITH DESIGN PARAMTERS

MEMBER TRUSS IS APPLIED ON DIAGONAL MEMBERS OF ROOF TOP