Table 3 Summary table of parameters.

From: Multi-objective optimization design approach for prefabricated buildings to minimize cost, duration and carbon emissions using ant colony algorithm

Layers

Cast-in-place components

Prefabricated components

Number

Type

Cost

(yuan) × 104

Duration(day)

Carbon

emission(t)

Prefabricated

rate(%)

Cost(yuan) × 104

Duration

(day)

Carbon

emission(t)

Prefabricated

rate(%)

First layer

1

Column

10.95

12

62.48

0

13.41

6

54.87

0.82

2

beam

15.97

14

53.47

0

19.97

8

46.75

1.90

3

Wall

29.31

21

121.41

0

34.04

11

108.65

8.41

4

Board

15.57

18

64.48

0

18.60

10

56.08

1.74

5

Stair

1.75

7

4.45

0

1.96

3

3.33

0.17

Second layer

6

Column

4.77

9

25.92

0

5.73

4

20.88

0.44

7

beam

7.99

11

27.93

0

8.47

6

19.83

0.81

8

Wall

20.05

18

79.66

0

22.31

10

69.09

5.52

9

Board

8.25

16

31.78

0

9.32

8

26.98

0.87

10

Stair

1.67

7

4.10

0

1.80

3

3.06

0.15

Three layer

5i + 1

Column

4.51

9

24.25

0

5.69

4

19.10

0.42

5i + 2

beam

7.99

11

27.95

0

8.49

6

19.89

0.80

5i + 3

Wall

20.00

16

79.34

0

22.37

10

69.26

5.51

5i + 4

Board

8.25

14

31.78

0

9.32

8

26.98

0.87

5i + 5

Stair

1.67

7

4.10

0

1.80

3

3.06

0.15