Table 9 Inter-storey drift angles corresponding to different performance levels under five loading cases

(x +)

Step

9

84

148

208

Displacement/mm

34.26

115.38

197.19

272.15

Base force/kN

9.72

53.02

61.52

66.82

\({\Delta }_{\text{X} + }/H\)

2/571

4/339

5/248

16/575

(x-)

Step

8

84

146

204

Displacement/mm

39.74

115.80

193.41

265.95

Base force/kN

7.97

52.21

60.06

67.74

\({\Delta }_{\text{X} - }/H\)

1/246

11/929

7/354

22/809

(Y +)

Step

8

15

26

44

Displacement/mm

36.21

80.83

125.85

173.43

Base force/kN

55.79

112.05

168.10

228.47

\({\Delta }_{\text{Y} + }/H\)

1/270

1/121

7/544

5/282

(Y-)

Step

7

14

27

44

Displacement/mm

33.51

54.38

86.89

101.90

Base force/kN

39.47

63.01

101.17

116.5

\({\Delta }_{\text{Y} - }/H\)

1/292

1/180

7/788

1/96

(XY)

Step

13

124

151

162

Displacement/mm

32.75

247.91

335.95

371.80

Base force/kN

15.85

97.11

103.64

106.13

\({\Delta }_{\text{XY}}/H\)

3/896

20/789

9/262

23/605