DA

Caption: FIGURE 17: Maximum drift angle distribution for PGA = 0.62 g: (a) El Centro NS, (b) Taft EW, (c) Northridge EW, and (d) Kobe NS.

Table 1--PGA in Time history analysis Earthquake effect 6 degrees 7 degrees Multi event earthquake 18 35(55) Rare earthquake 125 220(310) Earthquake effect 8 degrees 9 degrees Multi event earthquake 70(110) 140 Rare earthquake 400(510) 620 Table 2--The comparison of pre and post wave analysis results in ground motion name ELCentro wave Relative category front back difference% Base shear 51454 45150 14.2 Top displacement 342.3 323.7 5.7 Maximum drift angle between layers 1/294 1/322 9.5 name TH2TG055wave Relative category front back difference% Base shear 28983 31493 8.7 Top displacement 252.4 220.4 14.5 Maximum drift angle between layers 1/408 1/426 4.4

That's true, but consider this: In an aircraft cruising at 125 KTAS, a drift angle of 10 degrees results in 123 knots of ETAS.

(ii) A 3.5% drift angle was achieved by both the DCLDOUBLE and DCL-SINGLE specimens with relative energy dissipation not lesser than 1/8.

In the elastic stage, the top drift angle of the specimen is within 1/200, which meets the requirement of the Chinese seismic code (i.e.

The drift angle of the ship while proceeding to the channel can be assessed employing the formula:

Notwithstanding the undesired localization of damage at the link end connections, considering the values of inter-storey drift angles reached during the test and the large increase of the storey stiffness and strength, the upgrading technique seems to be promising.

where [[Phi].sub.d] = the drift angle [C.sub.d] = the cold capacitance of the drift region [Phi] = the phase difference between average phase of the convection current in avalance zone and the phase of the conduction current at the beginning of the drift region, typically [phi] [unkeyable] [pi]/15 .

The drift angle a of the frame is defined as the corresponding [DELTA] divided by [L.sub.c].