Table 1 Direct cost components of first floor frame columns.

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

Serial number

Code

Category

Name

Unit

1

10,010

Labor

Labor cost

Yuan

2

2,270,070

Material

Geotextile

m2

3

34,110,010

Material

Water

m3

4

80,210,180

Material

Pre-mixed concrete

m3

5

1,010,040

Material

Rebar

t

6

1,030,031

Material

Galvanized mild steel wire

Kg

7

3,135,001

Material

Mild steel welding rods

Kg

8

3,011,325

Material

Tie bolts

Kg

9

3,019,021

Material

Round nails

Kg

10

5,030,080

Material

Pinewood santalum

m3

11

5,050,120

Material

Waterproof plywood

m2

12

14,350,250

Material

Isolator

Kg

13

35,090,230

Material

Steel support

Kg

14

99,450,760

Material

Other material costs

Yuan

15

990,605,060

Machine

Concrete vibrator

-

16

990,702,010

Machine

Steel bar cutting machine

-

17

990,703,010

Machine

Steel bending machine

-

18

990,901,010

Machine

AC arc welding machine

-

19

990,910,030

Machine

Butt welding machine

-

20

990,401,025

Machine

Cargo carrier

-

21

990,706,010

Machine

Woodworking circular saw machine

-