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Quantitative Analysis Model of Construction Project Cost Control and Its Efficacy Verification

Ting Fan

Ting Fan

Nanjing Vocational University of Industry TechnologyNanjing, China
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Fan, Ting
  
19 mars 2025
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Publié en ligne: 19 mars 2025
Reçu: 21 oct. 2024
Accepté: 12 févr. 2025
DOI: https://doi.org/10.2478/amns-2025-0463
Mots clés
© 2025 Ting Fan, published by Sciendo
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Figure 1.

Project cost control flow chart
Project cost control flow chart

Figure 2.

Flowchart of project earned value management
Flowchart of project earned value management

Figure 3.

Network plan diagram
Network plan diagram

Figure 4.

Changes in the three basic parameters of the project
Changes in the three basic parameters of the project

Figure 5.

Changes in the three basic parameters of key paths
Changes in the three basic parameters of key paths

Figure 6.

Cost forecast
Cost forecast

Figure 7.

Progress prediction
Progress prediction

Bridge construction project work relationship table

Job code Work package name Tight work Duration (day)
A Bridge, channel 24
B Precast beam field 24
C Box girder prefabrication B 92
D Hollow plate prefabrication B 66
E Old bridge demolition A 48
F Foundation of the bridge (hole grouting, column, beam) E 128
G Support stone F 12
H Beam mounting G 32
I Reaming and wet seam H 15
J Bridge dress I 32
K Wall guard I 23
L Expansion joint installation J, K 9
M Sideway board installation J, K 12
N Marking line L, M 2
O The bridge is demolished by the way N 16

The three parameters of the entire project earning method

Year Month Whole project Critical path
BCWS ACWP BCWP BCWSk ACWPk BCWPk
2020 1 6.54 7.18 6.08 -- -- --
2 7.82 8.59 7.69 -- -- --
3 85.84 98.1 82.73 40.16 37.17 40.68
4 159.45 180.98 178.67 78.64 72.93 76.45
5 222.09 250.86 251.61 110.12 106.81 104.2
6 1057.85 1185.38 1012.64 529.82 533.24 524.23
7 1826.51 2037.48 1820.59 930.5 937.98 951.32
8 4064.82 3943.15 3866.95 2119.29 2042.32 2083.52
9 4976.98 4903.07 5126.27 2609.59 2567.14 2553.71
10 6090.14 6060.26 5851.22 3171.92 3143.22 3152.31
11 7615.52 7602.21 6727.19 3969.35 3916.76 4087.72
12 8332.9 8237.39 9033.49 4341.46 4289.93 4542.6
2021 1 10009.36 9695.82 9678.32 6017.9 5933.65 6195.78
2 10256.56 9920.6 9461.66 6265.17 6159.75 6246.37
3 10516.55 10162.41 10516.73 6525.14 6406.24 6525.18
4 11055.02 10679.08 11055.03 -- -- --
5 12429.54 11995.88 12429.46 -- -- --

Budget cost (Yuan)

Job code Labor cost Materials cost Mechanical charge Subcontract charge Tot
A 594198 0 713063 1069565 2376826
B 0 300009 0 199989 499998
C 0 2083942 0 3306145 5390087
D 0 24 0 1028894 1028918
E 0 0 0 810287 810287
F 10230 1620774 12506 1840152 3483662
G 0 5939 0 147295 153234
H 728381 1092598 849784 -20 2670743
I 0 36355 0 219428 255783
J 0 573492 0 382336 955828
K 0 160135 0 740862 900997
L 0 160813 0 107211 268024
M 0 55991 0 37312 93303
N 0 0 26 515806 515832
O 0 0 0 216950 216950

Activity time calculation results

Job code Node number Earliest starting time Earliest end Late start time The end of the day Total jet lag Critical path
i j ES(i,j) EF(i,j) LS(i,j) LF(i,j) TF(i,j)
A 2 7 0 24 0 24 0 ⎷
B 2 3 0 24 100 124 100
C 3 4 24 116 124 216 100
D 3 5 24 98 144 218 120
E 7 8 24 75 24 75 0 ⎷
F 8 9 75 205 75 205 0 ⎷
G 9 10 205 216 205 216 0 ⎷
H 10 11 216 246 216 246 0 ⎷
I 11 12 246 259 246 259 0 ⎷
J 12 13 259 289 259 289 0 ⎷
K 12 14 261 281 282 292 11
L 13 15 286 300 290 304 4
M 13 16 292 301 292 301 0 ⎷
N 16 17 301 303 301 303 0 ⎷
O 17 18 303 318 303 318 0 ⎷
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