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TECHNICAL PAPER

Observations: Observations:
From Table-5 it is observed that there is 24.18% of reduction From Table-6 it can be observed that there is 53.66% of
in lateral deflection, 57.74% of reduction in story drift, 27.92% reduction in lateral deflection,51.43% of reduction in story
reduction in bending moment, 33.43% reduction in shear force drift,55.39% reduction in bending moment, 44.73% reduction in
and 22.37% reduction in base shear in the Damped outrigger shear force and 52.54% reduction in base shear in the Damped
structural system. outrigger structural system.

table 4: variation in Response of M 1 under LA06 table 6: variation in Response of M 2 under LA03
earthquake
earthquake
ResPonse ot WithoUt With ReDUction
ResPonse ot WithoUt With ReDUction LocAtion DAmPeRs DAmPeRs (%)
LocAtion DAmPeRs DAmPeRs (%) (stoRy)
(stoRy)
Lateral 20 & 10 0.139 0.065 53.66
Lateral 40 0.208 0.138 33.65 Deflection
Deflection (m)
(m)
Bending 20 & 10 109.92 49.04 55.39
Bending 40 128.5 60.65 52.80 Moment
Moment MN-m
MN-m Shear Force 20 & 10 8.45 4.67 44.73
Shear Force 40 6.34 3.77 40.54 in MN
in MN Inter-story 20 & 10 2.8 1.36 51.43
Inter-story 40 3.6 0.97 73.05 Drift (e-3)
Drift (e-3) Base Shear 20 & 10 8.26 3.92 52.54
Base Shear 40 6.39 4.05 36.59 in MN
in MN 5.5 Results for structure M 2 under LA06
table 5: variation in Response of M 1 under LA14 earthquake
earthquake The variations obtained for lateral displacement, bending
ResPonse ot WithoUt With ReDUction moment, shear force, inter story drift and base shear is recorded
LocAtion DAmPeRs DAmPeRs (%) in Table-7.
(stoRy)
Lateral 40 0.182 0.138 24.18 Observations:
Deflection From Table-7 it can be observed that there is 47.41% of
(m) reduction in lateral deflection,51.43% of reduction in story
Bending 40 131.27 94.63 27.92 drift,62.02% reduction in bending moment, 36.03% reduction in
Moment shear force and 51.23% reduction in base shear in the Damped
MN-m outrigger structural system.
Shear Force 40 9.93 6.61 33.43 5.6 Results for structure M 2 under LA14
in MN
earthquake
Inter-story 40 2.65 1.12 57.74 The variations obtained for lateral displacement, bending
Drift (e-3)
moment, shear force, inter story drift and base shear is recorded
Base Shear 40 7.6 5.9 22.37 in Table-8.
in MN
Observations:
5.4 Results for structure M 2 under LA03
From Table-8 it can be observed that there is 55.28% of
earthquake
reduction in lateral deflection, 63.26% of reduction in story drift,
The variations obtained for lateral displacement, bending 23.38% reduction in bending moment, 50.39% reduction in
moment, shear force, inter story drift and base shear is recorded shear force and 37.96% reduction in base shear in the Damped
in Table-6. outrigger structural system.

The IndIan ConCreTe Journal | november 2019 19