Ian Smith Project Services Ltd. Level3, iPayroll House 93 Boulcott Street Wellington
Engineer: SD
Job No.:W140605
Calculation of Seismic Coefficient
Ian Smith Project Services Ltd. Level3, iPayroll House 93 Boulcott Street Wellington
Engineer: SD
Job No.:W140605
Transverse Analsyis
General arrangement of frame
m1:mass of roof @ 0.5kN/sqm
m2:mass of block wall
m:effective mass
P: earthquake load
M:imposed moment
Vcol:imposed shear in col
Vfdn:imposed shear in foundation beam
Calculates area of a bar
Calculates stress block parameters
Calculates ultimate axial force in kN
Intregates to give force(kN) and moment(kNm)
Main function
Ian Smith Project Services Ltd. Level3, iPayroll House 93 Boulcott Street Wellington
Engineer: SD
Job No.:W140605
Transverse Analsyis
Bending capacity of columns:
Axial force is neglected conservatively
Shear capacity of columns:
Formula for beams is applied here because the behaviour is predominantly flexural with negligible axial load
Ian Smith Project Services Ltd. Level3, iPayroll House 93 Boulcott Street Wellington
Engineer: SD
Job No.:W140605
Transverse Analsyis
Bending capacity of ground beams
Shear capacity of ground beams
Ian Smith Project Services Ltd. Level3, iPayroll House 93 Boulcott Street Wellington
Engineer: SD
Job No.:W140605
Out-of-plane analysis for transverse direction
Block walls are assumed to be unsupported at roof level
α: moment coefficient
From Roark's handbook
For μ of 1.25
fcb:compressive strenghth of block
fyb:yield strength of reinf. in block wall
Block wall reinforcement:
Mnb:nominal moment capacity of block wall