commercial development Calc. By: sm Checked By: fm
Post-analysis Checks Rev: 1
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commercial development Calc. By: sm Checked By: fm
Post-analysis Checks Rev: 1
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commercial development Calc. By: sm Checked By: fm
Post-analysis Checks Rev: 1
SECOND ORDER EFFECTS REQUIREMENT CHECK: STRUCTURAL IRREGULARITIES: Plan Irregularities Torsional Irregularities Discontinuities in Floor Diaphragm Existance of Re -entrant Corners Storey Slenderness
: -NONE : -NONE : -NONE : -NONE -
Vertical Irregularities Interstorey Strength Irregularity (Weak Storey) Interstorey Stiffness Irregularity (Soft Storey) Interstorey Mass Distribution Irregularity Discontinuities in Vertical Load Bearing Members Existance of Re -entrant Storeys
: -NONE : -NONE : -NONE : -NONE : -NONE -
STOREY MASSES, WEIGHTS AND DYNAMIC INERTIA FORCES h m, mr 2 G, Q W F1, F 2
: Storey Height : Storey Mass and Mass Moment of Inertia : Sum of Dead and Live Loads in Storey : Storey Seismic Weight (W = G + nQ) : Earthquake forces h (m)
commercial development Calc. By: sm Checked By: fm
Post-analysis Checks Rev: 1
Storey: 3 Storey: 2 Storey: 1
60.550 60.550 60.550
29.054 30.309 29.664
5.00 5.00 5.00
29.900 29.900 29.900
15.098 15.618 15.046
5.00 5.00 5.00
SEISMIC OVERTURNING CHECK: : Total Building Height measured from foundation level. : Earthquake forces : Overturning Moments : Resisting Moments at storey level : Moment arm of resisting forces to overturning : Story Center of Gravity Coordinates : Storey Seismic Weight (W = G + nQ)
Overturning Check: Dir 1 ... Mp1 / Ma1 = 7187698.6 / 154131.0 = 46.6337 ≥ 2.0 OK ✔ Overturning Check: Dir 2 ... Mp2 / Ma2 = 3575148.9 / 130548.7 = 27.3856 ≥ 2.0 OK ✔
SEISMIC CHECKS SUMMARY REPORT: Effective Mass Ratio exceeds 90% in all loadings. Number of Participating Modes are sufficient. ✔ Vibration Periods: T1x =1.5s, T1y =1.6s ... 2.0s is below limit. Equivalent Static Load Analysis Method can be used. ✔ (B1) Irregularity does not exists in the building. ✔ Structural Behaviour Factor calculated after Wall/Frame System Check is R= 3.00 Structural Behaviour Factor calculated based on Structural System Class is R= 3.00 is adequate. ✔
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