Stress Block Diagram

Design bending moments

Slender Reinforced Concrete Column

First order Additional second moments for order moments for

'stocky' columns 'slender' columns

'01 ^ '2 Total moment diagram for 'slender' columns

First order Additional second moments for order moments for

'stocky' columns 'slender' columns

'01 ^ '2 Total moment diagram for 'slender' columns

Table 4

Effective length factor, F, for braced columns

Figure 6

Calculating factor

Figure 7

Stress block diagram for columns

Table 4

Effective length factor, F, for braced columns

k2

k1

0.10

0.20

0.30

0.40

0.50

0.70

1.00

2.00

5.00

9.00

Pinned

0.10

0.59

0.62

0.64

0.66

0.67

0.69

0.71

0.73

0.75

0.76

0.77

0.20

0.62

0.65

0.68

0.69

0.71

0.73

0.74

0.77

0.79

0.80

0.81

0.30

0.64

0.68

0.70

0.72

0.73

0.75

0.77

0.80

0.82

0.83

0.84

0.40

0.66

0.69

0.72

0.74

0.75

0.77

0.79

0.82

0.84

0.85

0.86

0.50

0.67

0.71

0.73

0.75

0.76

0.78

0.80

0.83

0.86

0.86

0.87

0.70

0.69

0.73

0.75

0.77

0.78

0.80

0.82

0.85

0.88

0.89

0.90

1.00

0.71

0.74

0.77

0.79

0.80

0.82

0.84

0.88

0.90

0.91

0.92

2.00

0.73

0.77

0.80

0.82

0.83

0.85

0.88

0.91

0.93

0.94

0.95

5.00

0.75

0.79

0.82

0.84

0.86

0.88

0.90

0.93

0.96

0.97

0.98

9.00

0.76

0.80

0.83

0.85

0.86

0.89

0.91

0.94

0.97

0.98

0.99

Pinned

0.77

0.81

0.84

0.86

0.87

0.90

0.92

0.95

0.98

0.99

Calculating factor

Stress Diagram For Column

Figure 7

Stress block diagram for columns

Stress Block Diagram

Figure 8

Strain diagrams for columns

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