5. PROJECT MANAGEMENT
5.6. Construction Schedule
5.6.2. Activity on Node Final Approach
Now with the usage of Work Breakdown Structure, it is possible to create the first view of project scheduling. The important thing here is that now it is required to find the golden middle among all requirements such that with the usage of reasonable amount of sources, budget and scope to finish the project on time without any delay.
Figure 5. 6. Activity Diagram A-Site Investigation
B-Site Preparation
C-Foundation Installation D- Fitting of the Steel
E- Concrete Pouring of the Floors F-Construction of the Roof
G-Windows and Doors Installation H-Exterior Sheathing Installation I-Plumbing Installation
J-Electricity Installation K-Elevator Installation
L-Heating Pipes and Ventilation Installation M-Finishing Works inside the building N-Internal Masonry Work
O-Landscape Construction P-Finishing of the Whole Project
117
According to our research and data taken during the interview with Leading Project Engineer from Highvill company, whose name is Temirhan Yerzhanov, we collected some information related to the duration of activities mentioned above. Thus, we have following data:
Table 5. 7. Durations of activities
Activity Duration
Site Investigation
Total- 12 days
Surveying 5 days
Soil Analysis 7 days
Site Preparation
Total-22 days
Temporary Power Installation 2 days
Temporary Water Supply Installation 2 days
Temporary Fence Construction 2 days
Temporary PCC Construction 1 day
Site Cleaning and Grub 5 days
Rough Grading of the Site 10 days
Final Grading of the Site 5 days
Temporary Fire Protection System Installation 5 days Foundation Installation
Total-63 days
Drilling of holes 10 days
Hole preparation 3 days
Driving of pile foundation 30 days
Formation of fence for Cap pouring 2 days
Pouring and Curing of the concrete 18 days
Fitting of the Steel
Total-65 days Building of Columns and Beams for 1st,2nd,3rd floors 10 days Building of Columns and Beams for 4th,5th,6th floors 15 days Building of Columns and Beams for 7th,8th,9th floors 20days
118
Building of Columns and Beams for 10th,11th,12th floors 20 days
Concrete Pouring of the Floors
Total-188 days 1. 1st,2nd,3rd floor Pouring
Total-35 days 1.1 Formation of the fence for the 1st.2nd and 3rd floors 10 days 1.2 Rebar and utilities installation for the 1st,2nd and 3rd floors 10 days 1.3 Pouring and Curing of the 1st,2nd and 3rd floors 15 days 2. 4th,5th,6th floor Pouring
Total-40 days 2.1 Formation of the fence for the 4th,5th and 6th floors 10 days 2.2 Rebar and utilities installation for the 4th,5th and 6th floors 12 days 2.3 Pouring and Curing of the 4th,5th and 6th floors 18 days 3 7th,8th,9th floor Pouring
Total-45 days 3.1 Formation of the fence for the 7th,8th,9th floors 10 days 3.2 Rebar and utilities installation for the 7th,8th,9th floor 12 days 3.3 Pouring and Curing of the 7th,8th,9th floors 23 days 4.10th,11th,12th floor Pouring
Total-50 days 4.1 Formation of the fence for the 10th,11th,12th floors 10 days 4.2 Rebar and utilities installation for the 10th,11th,12th floors 15 days 4.3 Pouring and Curing of the 10th, 11th, 12th floors 25 days
5. Pouring and Curing of the Roof 18 days
Exterior Sheathing Installation 50 days
Internal Mansonry Work
Total- 60 days
Gesso of the Walls 50 days
Tiling of the restrooms, kitchen 25 days
Painting of the Walls 60 days
Floors and Ceilings Installation 60 days
Construction of the Roof
Total-31 days
119
Roof Drains Installation 4 days
Pouring and Curing of the roof fill 7 days
Finishing Work of the Roof 20 days
Windows and Doors Installation 30 days
Windows Installation 30 days
Interior Doors Installation 20 days
Main Entrance Installation 10 days
Elevators Installation
Total-30 days Installation of the elevator equipment inside the pit 25 days Installation of the elevator doors on each floor 10 days
Elevator Testing and Setting 5 days
Plumbing Installation
Total-65 days Installation of the pipes and valves including seqge and fire hoses 60 days
Plumbing Testing and Setting 5 days
Electricity Installation
Total-50 days Setting of the wires and installation of transformers 30 days
Installation of sockets and lamps 20 days
Installation of electrical devices like air conditioning 30 days
Heating Pipes and Ventilation Installation
Total-55 days
Installation of the pipes 40 days
Construction of drywall walls covering the pipes 10 days
Setting of ventilation equipment 20 days
Testing and Fitting 5 days
Finishing Works inside the Building
Total-72 days
Finishing of residual trim work 20 days
Rough Cleaning of the Building 7 days
Final Cleaning of the Building 15 days
Furniture Installation 30 days
120 Landscape Construction
Total-56 days
1. Site Cleaning 5 days
2. Compaction of the Soil around the building 10 days 3. Fence Construction
Total-29 days 3.1 Remove of temporary Fence around the hotel area 1 day 3.2 Excavation of the Soil for Fence Fundament 1 day
3.3 Pouring and Curing of Fence Fundament 7 days
3.4 Construction of the fence from the brick 15 days
3.5 Gate Installation 5 days
4. PCC Installation, Special booth constructed on the factory 1 day 5. Fountain Installation
Total-12 days
5.1 Plumbing Installation Total-1 day
5.1.1 Excavation of the Soil for Fence Fundament
1 day 5.1.2 Pipes Installation
5.1.3 Pipes Burying
5.2 Construction of the fountain structure
Total-11 days 5.2.1 Excavation of the Soil for Fence Fundament 1 day 5.2.2 Formation of fence for fountain walls pouring 1 day
5.2.3 Installation of rebar and pipes 1 day
5.2.4 Pouring and Curing of fountain 7 days
5.2.5 Sheathing of the fountain surface by decorative rock 1 day
5.3 Testing and Setting 1 day
6. Pavers Path Construction
Total-22 days 6.1Construction of paths borders
Total- 10days
6.1.1 Excavation of Soil 1 day
6.1.2 Formation of fence for borders pouring 2 days
6.1.3 Pouring and Curing of Borders 7 days
121
6.2 Soil Grading 2 days
6.3Construction of Pathways from the pavers 10 days
7. Asphalt Covering
Total-12 days
7.1 Soil Compaction,Accurate Grading 7 days
7.2 Pavement Construction 5 days
8. Barriers,Car Signs and Speed Bumps Installation 1 day
9. Drawing of Street Parking 1 day
10. Lamp Posts Installation
Total-12 days
10.1 Lamp Posts Electricity Installation Total-1 day
10.1.1 Soil Excavation
1 day 10.1.2 Cables Installation
10.1.3 Cables Burying
10.2 Lamp Posts Construction
Total-11 days
10.2.1 Soil Excavation 1 day
10.2.2 Piers Installation 1 day
10.2.3 Pouring and Curing of Lamps Posts Fundament 7 days
10.2.4 Lamps Post fitting 2 days
Finishing Works of the whole Project
Total-5 days Remove of Temporary Power Supply, Water Supply and PCC
Construction 2 days
Outside Area Cleaning 5 days
Important to mention here is that Total durations of main activities were calculated in account of the fact that their sub-activities overlaps each other.
Figure 5. 7. AON diagram data Activitiy Duration ES (Early
Start)
EF (Early Finish)
LS (Late Start)
LF (Late Finish)
TF(Total Float)
A-Site Investigation 12 days 0 12 0 12 0
122
B-Site Preparation 22 days 12 34 12 34 0
C-Foundation
Installation 63 days 34 97 34 97 0
D- Fitting of the Steel 65 days 97 162 230 295 133
E- Concrete Pouring of the Floors
188
days 107 295 107 295 0
F-Construction of the
Roof 31 days 295 326 295 326 0
G-Windows and Doors
Installation 30 days 326 356 326 356 0
H-Exterior Sheathing
Installation 50 days 356 406 446 496 90
I-Plumbing Installation 65 days 356 421 371 436 15
J-Electricity Installation 50 days 356 406 356 406 0
K-Elevator Installation 30 days 406 436 406 436 0
L-Heating Pipes and
Ventilation Installation 55 days 356 411 381 436 25
M-Finishing Works
inside the building 72 days 496 568 496 568 0
N-Internal Masonry
Work 60 days 436 496 436 496 0
O-Landscape
Construction 56 days 496 552 507 563 11
P-Finishing of the
Whole Project 5 day 552 557 563 568 11
Now with the proper data, we can find critical path of the project and calculate its duration. Thus, Critical Path of the Project is A, B, C, E, F, G, J, K, N, M and the duration of the project is 568 days.