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Productivity Analysis Example

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Submitted By moammaralzia
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TUGAS #6
SI-5151 PRODUKTIVITAS KONSTRUKSI

“ANALISA HASIL PRODUKTIVITAS”

Oleh :

Moammar Alzia Viqolbi

(25015005)

Dosen :

Ir. Muhamad Abduh, MT., Ph.D.

KELOMPOK KEAHLIAN MANAJEMEN REKAYASA KONSTRUKSI
PROGRAM MAGISTER TEKNIK SIPIL
FAKULTAS TEKNIK SIPIL DAN LINGKUNGAN
INSTITUT TEKNOLOGI BANDUNG
2015

CASE: Construct a cycle chart, a process chart, and a crew balance chart for a pile-driving operation. Then show the improved productivity and LUF.

I. PROJECT
Project
Resource
Step
1

: Pile-driving operation
: 3 (three)
Time (mins)

Rigger 1

00.00 - 02.00 connects pile to the sling

Rigger 2

Pile-driver

connects pile to the sling

waits

02.00 - 04.00 assists pile-driver operator

waits

3

04.00 - 05.00 assists in spotting the pile tip

waits

positions location and angle of pile 4

05.00 - 09.00 waits

waits

pounds the pile into the ground 5

EXISTING CONDITION

2

swings over to the pile, connects its hoist table to the sling, and hoists the pile into its leads

takes continous measurements
09.00 - 10.00 of the pile length remaining counts blows above the grade

Project
Resource
Step

pounds the pile into the ground : Pile-driving operation
: 3 (three)
Time (mins)

Rigger 1

Rigger 2

Pile-driver

SIKLUS 1
00.00 - 02.00 connects pile to the sling

connects pile to the sling

waits

2

02.00 - 04.00 assists pile-driver operator

waits

swings over to the pile, connects its hoist table to the sling, and hoists the pile into its leads

3

POTENTIAL IMPROVEMENT

1

04.00 - 05.00 assists in spotting the pile tip

waits

positions location and angle of pile 4

05.00 - 07.00 waits

waits

pounds the pile into the ground 5

07.00 - 09.00 connects pile to the sling

connects pile to the sling

pounds the pile into the ground 6

takes continous measurements
09.00 - 10.00 of the pile length remaining counts blows above the grade

pounds the pile into the ground SIKLUS 2

1

00.00 - 02.00 assists pile-driver operator

waits

swings over to the pile, connects its hoist table to the sling, and hoists the pile into its leads

2

02.00 - 03.00 assists in spotting the pile tip

waits

positions location and angle of pile 3

03.00 - 05.00 waits

waits

pounds the pile into the ground 4

05.00 - 07.00 connects pile to the sling

connects pile to the sling

pounds the pile into the ground 5

takes continous measurements
07.00 - 08.00 of the pile length remaining counts blows above the grade

pounds the pile into the ground 1

II. CYCLE CHART
a. Existing Condition
Tasks

Minutes
1

2

3

4

5

6

7

8

9

10

7

8

9

10

connects pile to the sling swings over to the pile, connects its hoists cable to the sling, and hoists the pile into its leads positions location and angle of pile pounds the pile into the ground takes continous measurements of the pile remaining above the grade counts blows

b. Potential Improvement
Tasks

Minutes
1

2

3

4

5

6

connects pile to the sling swings over to the pile, connects its hoists cable to the sling, and hoists the pile into its leads positions location and angle of pile pounds the pile into the ground takes continous measurements of the pile remaining above the grade counts blows

2

III. PROCESS CHART
a. Existing Condition

20%

2

assists pile-driver operator

2

20%

3

assists in spotting the pile tip

1

10%

4

waits

4

40%

5

takes continous measurements of the pile remaining above the grade

1

10%

TOTAL

10

100%

Storage

2

Delay

connects pile to the sling

Inspection

1

Tasks

Transport

Notes

No

Operation

Time (mins)

RIGGER #1

20%

2

waits

7

70%

3

counts blows

1

10%

TOTAL

10

100%

Storage

2

Delay

connects pile to the sling

Inspection

1

Tasks

Transport

Notes

No

Operation

Time (mins)

RIGGER #2

20%

2

swings over to the pile, connects its hoists cable to the sling, and hoists the pile into its leads

2

20%

3

positions location and angle of pile

1

10%

4

pounds the pile into the ground

5

50%

TOTAL

10

100%

Storage

2

Delay

waits

Inspection

1

Tasks

Transport

Notes

No

Operation

Time (mins)

PILE-DRIVER

3

b. Potential Improvement

25%

2

assists pile-driver operator

2

25%

3

assists in spotting the pile tip

1

13%

4

waits

2

25%

5

takes continous measurements of the pile remaining above the grade

1

13%

TOTAL

8

100%

Storage

2

Delay

connects pile to the sling

Inspection

1

Tasks

Transport

Notes

No

Operation

Time (mins)

RIGGER #1

25%

2

waits

5

63%

3

counts blows

1

13%

TOTAL

8

100%

Storage

2

Delay

connects pile to the sling

Inspection

1

Tasks

Transport

Notes

No

Operation

Time (mins)

RIGGER #2

2

25%

2

positions location and angle of pile

1

13%

3

pounds the pile into the ground

5

63%

TOTAL

8

100%

Storage

swings over to the pile, connects its hoists cable to the sling, and hoists the pile into its leads

Delay

1

Inspection

Notes

Transport

Tasks

Operation

No

Time (mins)

PILE-DRIVER

4

IV. Crew Balance Chart
a. Existing Condition

b. Potential Improvement

5

V. LUF (LABOR UTILIZATION FACTOR)
=

(

+(

.

.



weighting factor = 0,5
A. Existing Condition
a. Rigger #1
=

2 + 0,5(2 + 1 + 1
4
=
= 0,40
10
10

b. Rigger #2
=

2 + 0,5(1
2,5
=
= 0,25
10
10

c. Pile-driver
=

(2 + 5 + 0,5(1
7,5
=
= 0,75
10
10

B. Potential Improvement
a. Rigger #1
=

4
2 + 0,5(2 + 1 + 1
= = 0,50
8
8

b. Rigger #2
=

2 + 0,5(1
2,5
=
= 0,3125
8
8

c. Pile-driver
=

(2 + 5 + 0,5(1
7,5
=
= 0,9375
8
8

LUF
Existing
condition
Potential
Improvement

Rigger #1

Rigger #2

Pile-driver

0,40

0,25

0,75

0,50

0,3125

0,9375

6

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