Job layout of cinstruction site
- 1. JOB LAYOUT 1 NAME DALAL JAY RAKESHBHAI BALAR RAJ PRAVINBHAI KANZARIYA NIKHIL JIVRAJBHAI GANDHI RAJ MINESHBHAI GANGANI SAGAR ASHOKBHAI
- 2. What is Job Layout? • A job layout is prepared to promise that work proceeds smoothly without any obstruction. The various construction resources such as material, men, machinery etc. should be arranged in such way to achieve optimal utilization of space. The larger and more complex the project, greater will be the need for planned job layout and detailing at site. And job layout can be defined as a site drawing of the proposed construction showing the location of entry, exit, temporary services, material stores and stocks, plant or equipment and site offices. 2
- 3. o A job layout is a scaled drawing of the propose construction site showing all relevant features • Entry point • Exit point • Storage are of materials-bricks-cement-sand-aggregate • Temporary services-washing and toilet • Contractor site office • Area of keeping equipment such as mixer • Bar bending area • Labor housing 3
- 4. History • Static models can not consider the changes in facility location that occur on construction sites onto the progress of time. These models assume that all facilities exist on the site for the entire duration of the project. Static models can be conformable for projects where space is plenteous, having large construction sites with short durations and for project where there are not many changes in the layout of the construction site over the course of time. However, where number of facilities to come and leave the project site over the course of construction in more complicated projects, static model are not practical with longer durations. Static models do not allow reusing the space occupied by facility which is no longer required on the site. 4
- 5. • Dynamic models consider the changes that occur on construction sites over the course of progress in project. The space usage on the site changes over the course of construction. The time and duration for which the facilities are required on the site depends on the activities they are attached with. The role of facilities on the construction site is to provide base for construction activities. A model shares locations to facilities where they can have better assistance for the activities. The dynamic model described that, both the required facilities and the space required to help them on the site, are subject to change. 5
- 6. Purpose of preparing job layout • To save time in delivering construction material at the side of construction • To safeguard construction material from damage and deterioration • To keep the lead of cartage minimum, so that cartage expenses may be minimum • To adopt the best mode of working • To complete the work with the minimum use of equipment and machinery • To lake maximum output from labor and machinery 6
- 7. • To provide safety to workers and passer-by etc. • To avoid damage due to construction activities to the nearby properties • To common use materials as fine and coarse aggregate should be stored to near to each other • To store construction materials as near the place of the utilization as possible 7
- 8. Advantage of a good job layout • Smooth and economical working of the project. • Reduces the completion time of the project. • Provide more safety in the working of the project. • Material wastage and deterioration are reduced. • Material transection become easy speedy and economical. • Increases the output from labor and machinery. 8
- 9. Factor affection job layout • Nature of the project • Construction method • Availability of resources • Material facility • Constructer’s, site engineer’s offices • Provision for temporary roads • Other facility’s 9
- 10. Principal preparation of job layout • Administrative block • Warehouse • Entry and exits • Location of workshop • Service • Temporary roads • Staff accommodation 10
- 11. Identification of facility • The Following are the temporary facilities are identified to be constructed on site • 1) Site Office 2) Booking office 3) Subcontractor’s office 4) First Aid and Medical Room 5) Guard Room 6) Toilet on Site 7) Engineer and Staff quarters 8) Labor quarters 9) Equipment Maintenance room 10) Parking for machines 11) Bar bending shop 12) Fabricated rebar storage yard 13) Carpentry shop 14) Cement warehouse 15) Batching plant and aggregates storage 16) Testing Lab 17) Material storage lab 18) Water tank 19) Scaffolding storage 20) Canteen 11
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- 14. Facility movement • The decision of fixing the facility location is depend on the entry location, exit and how will be the flow of facility occurs on site. In this construction project, we have fixed the entry location and exit. The entry should be fixed at the west side of plot where there is approaching a road of width 20m. The purpose behind the fixation of entry on west side is to attract the customer by showing them the extent of construction project. The extension of construction project cannot be visualized from any other side. The exit is kept on north side of the plot, where there is approaching road of width 30m. After fixing the entry location, we are going to think on facility movement on site 14
- 15. • Now, grouping or bundle of the same or nearly same function of facility can be done to get the initial relationship diagram. The grouping of facility is done in oval shape. The grouping of facility is shown below. • Group 1 • 1) Site office • 2) Booking office • 3) Subcontractor office • 4) First aid and medical room • 5) Toilet on site • 6) Labor quarter • 7) Guard room 15
- 16. • Group 2 • 1) Toilet on site • 2) Carpentry shop • 3) Water tank • 4) Scaffolding storage. • Group 3 • 1) Cement warehouse • 2) Batching plant and aggregate storage • Group 4 • 1) Toilet on site • 2) Staff and engineer quarter 16
- 17. • Group 5 • 1) Bar bending shop • 2) Fabricated rebar storage yard • Group 6 • 1) Testing lab • 2) Material storage lab • Group 7 • 1) Equipment maintenance room • 2) Parking for machines 17
- 18. • Group 8 • 1) Canteen • 2) Toilet on site. • Others • 1) Internal Road • 2) Electric Poles 18
- 19. Space requirements • Once work relationships were worked out to the optimized level, the group involved in the construction project including project manager, senior Engineer, site Engineer etc. wants to establish the space relationships for each facility. Once again, this process was accomplished over a series of weekly, one hour meetings. Each person listed their personal space needs and these were presented orally and discussed by all. The process of working through this activities area discussion added much understanding to how the business operates now and should operate in the future. 19
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- 21. Activity relationship diagram • After completion of grouping of facility task, each group is now moving according to others group or move according to the relation that group with other group. The relation among the group can be shown in figure by single, two, three and four line between the groups. The meanings of those four lines between groups indicate that it is absolutely necessary that these groups should be close together. Three lines show an especially important closeness relationship. Two lines illustrate that it is important that they may or may not be close. One line illustrate that there is no need to be close that groups. Figure obtain is called as activity relationship diagram. 21
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