A one story reinforced-concrete building is idealized as a massless frame with two columns clamped at the base and a rig

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A One Story Reinforced Concrete Building Is Idealized As A Massless Frame With Two Columns Clamped At The Base And A Rig 1 (93.34 KiB) Viewed 23 times

A one story reinforced-concrete building is idealized as a massless frame with two columns clamped at the base and a rigid beam supporting a dead load of 1000kN at the beam level . The frame is 12m wide and 5m high. The linear stiffness of column i == 2.8 ~ 10 kNm The damping ratio of the building is estimated as 5%. If the building is to be designed for the site Class II in which the seismic precautionary intensity is 8 and design earthquake group is Group 1, determine the lateral seismic effect on the structure in frequent earthquake. IOON 1m Scanned with CamScanner y=0.9+ 0.05-5 0.5+5 n=0.02+0.05-)/8 0.454 n=1+ 0.05-5 0.06+1.75 a=17,0.2 - (1-57) T($) 00.1 T 57 6.0 Maximum value of horizontal seismic influence coefficientamax 7 Earthquake effect 6 Frequent 0.04 Rare 0.28 Intensity 8 0.16 (0.24) 0.90 (1.20) 0.08 (0.12) 0.50 (0.72) 9 0.32 1.40 Valus of characteristic period (s) 1 0.25 Group 1 Group 2 Group 3 TI II 0.35 0.40 0.45 III 0.45 0.55 0.65 IV 0.65 0.75 0.90 0.30 0.35