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Table 2 Optimum locations and maximum DAS with the divided-area scheme.

From: Optimum Locations of Outriggers in a Concrete Tall Building to Reduce Differential Axial Shortening

Number of outriggers

General model

Constant-section model

Constant-stress model

0

None

None

None

0.10993 [1.000]

0.10567 [1.000]

0.10010 [1.000]

1

60a

45

58

0.05466b [0.497]c

0.05024 [0.475]

0.05573 [0.557]

2

68

52

66

50

37

50

0.04466 [0.406]

0.04468 [0.423]

0.04875 [0.487]

3

70

54

69

57

44

57

47

35

46

0.04278 [0.389]

0.04262 [0.403]

0.04539 [0.453]

4

72

56

71

63

48

62

52

40

52

45

33

44

0.04204 [0.383]

0.04163 [0.394]

0.04415 [0.441]

  1. a Optimum location of outrigger.
  2. b Maximum DAS.
  3. c Ratio of maximum DAS to maximum DAS of the none-outrigger case.