CE-401CE 1.0 Bar Chart 2015
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Transcript of CE-401CE 1.0 Bar Chart 2015
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.CONSTRUCTION PLANNING
& MANAGEMENT
COURSE OBJECTIVE
To enable the students learn network
techniques, construction planning
practices, construction equipments &
methods along with quality control in
construction
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COURSE CONTENTS
Network technique! "#$%
B'ic B'r Ch'rt( Networkin)( CPM 'n*
PERT 'n* Cot Mo*e+ Technique,
Introduction to network techniques,
Use of CP and P!"T for planning,
scheduling and control of construction
works.
#etwork scheduling and bar chart. !rrors
in networks. Types of nodes and node
numbering systems.
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COURSE CONTENTS
Contruction P+'nnin)! "-.% Planning for construction and site facilities
using networks.
Preparation of construction schedules for$ob. aterials, equipment, labor and
budgets using CP.
Construction %uality Control andinspection.
ignificance of 'ariability and estimation of
risk. Construction cost control.
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Contruction Equi/0ent 'n* Metho*! "1.%!quipments for earth construction and application.
Concrete construction. (ggregate production,
concrete) production, handling and placement, mi*ers,
'ibrators and temperature control.
Book+ ri'asta'a U. . -Construction Planning and management - /0001. 2algotia
Publishers, #ew 3elhi+ Peurifoy, ". 4., -Construction Planning, !quipments and ethods - /0051 c
2raw 6ills, Tokyo+ rinath 4.., -P!"T and CP Principles and (pplications7 899:1 (ffiliated !ast;
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CONSTRUCTIONPLANNING &
MANAGEMENT
PROJECT SC2E3ULING!
IMPORTANCE( STEPS 4OR BAR
C2ART( GANTT C2ART
CONSTRUCTION LABOR! T5PES(
PRO3UCTIVIT5( MULTIS6ILLING &SOCIAL ASPECTS
CONSTRUCTION E7UIPMENTS!
I3ENTI4ICATION( ACTUAL OUTPUT(
EMPLO5MENT COST( AC7UISITION
OPTIONS 4ILE3 VISITS
BASICS8 PROJECT P2ASES( PROJECT
3ELIVER5 S5STEM( PROJECT TEAM
CONSTRUCTION MATERIAL!
MANAGEMENT( PROVISIONING
STEPS( INVENTOR5
CRITICAL PAT2 MET2O3S! PROJECT
PLANNING( EVENT TIMES( CRITICAL
PAT2S( ACTIVIT5 TIES( ACTIVIT5
4LOATS
PERT TEC2NI7UE! UNCERTAINLT5(
PROJECT PLANNING( PROBABILIT5
O4 COMPLETION
COST MO3EL! 3IRECT
IN3IRECT COST( TIME9
COMPRESSION
TEC2NI7UES
7UALIT5 CONTROL IN
COSNTRUCTION!INSPECTION( TOTAL 7UALT5
CONTROL( ISO :$$$(
7UALIT5 ASSURANCE
PROGRAM( RIS6
CONTAINMENT
SA4ET5 IN
CONSTRUCTION
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P+'nnin) & Sche*u+in)
I;
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Nee* ;or Sche*u+in) >
=wner =wner "equirement
Communication of the Construction Plan
onitor and measure progress
2eneral Contractor>ub Contractors>uper'isor !stablish production goals
anage Change
Communication of the construction plan
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T
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4or0't o; Sche*u+e
ummary schedule
hows ma$or work elements, such as 3esign,
Ci'il, !lectrical, commissioning1
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B'r Ch'rt
3e'eloped by 6enry 2antt =ften called a 2antt Chart
3efinition( graphical description of a pro$ect consisting
of well;defined collection of tasks
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(cti'ities are represented by bars inproportion to their duration.(n acti'ity is a task or closely related group of
tasks whose performance contributes to thecompletion of the o'erall pro$ect !*ample) !*ca'ate foundation
?ar chart is usually graphed on a calendar
Can be as simple or detailed as necessary
B'r Ch'rt
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E'0/+e B'r Ch'rt9
Cu+ertTi0e
June Ju+< Au)ut Se/te0@er Octo@er
Ec''tion &B'ck;i++
Pi++in)
A@ut0ent No, -
A@ut0ent No,1
Stee+ )ir*er
Concrete 3eck
4inihin)O/er'tion
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Cul'ert
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Contructin) ' B'r Ch'rt
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Cot +o'*e* Contruction
Sche*u+e
http)>>www.pro$ectrisk.com
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M'n92our +o'*e* Sche*u+e
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4abor chedule
http)>>hafeeDrm.hubpages.com
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Ste/ to Contruct ' B'r Ch'rt
Identify (cti'ities
!stimate (cti'ity 3uration
3e'elop (cti'ity equence Construct ?ar Chart
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-, I*enti;ic'tion o; Actiitie
Use the
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Work Breakdown Structure
Hierarchical organization of a system Continued until sub-system is reduced to a
manageable unit.
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Work Breakdown Structure Hierarchical organization of a system Continued until sub-
system is reduced to a manageable unit.
?uilding E/
Foundation tructure Interior
!*ca'ation Footings
Isolated Footings Continuous Footings
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Sewage Pumping Station-WBS
P ci'il
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8. !stimate (cti'ity 3uration
6ow to estimate duration) From companyGs historic records
From asking superintendent or foreman
From standard estimating guide
From calculation using the 4abor 6our
Producti'ity equation
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4abor;6our Producti'ity ethod
Total labor;hours required for an acti'ity H
labor;hours >Unit * no. of units
Total days H
Total days H
total labor hours
labor;hours > day
total labor hours
crew siDe * hrs>day
:. !stimate (cti'ity 3uration
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Find the duration days1 of an interior and
e*terior painting acti'ities with quantities of 9m8and ::JK m8respecti'ely, using crews of //
m8>hours and / m8>hours for the interior and
e*terior painting acti'ities respecti'ely. (ssume
three shifts of K;h for each acti'ity.
So+ution
Interior painting duration H 9 > 8*// H /5.K or /J days
!*terior painting duration H ::JK > 8* / H /9 daysTotal work hours H 8J days
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equencing needs to take into account therelationships between acti'ities.
There are four types of relationships thatneed to be taken into account.
-, Ph
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1, S';et
!*ists when simultaneous performance of two
acti'ities can result in a safety haDard i.e., in
multi;story construction it is at times unsafe forcrews to be working under one another1
, Reource!
3ue to limited resource a'ailability, two acti'ities
may not be able to use a resource at the sametime i.e., a crane cannot be used for both
pouring walls and erecting steel1D, Pre;erenti'+!
6ow the contractor wishes certain acti'ities to be
1, Et'@+ih the Sequence O;
=ork "continue*
3 th B Ch t 4i + 3 i &
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3r'w the B'r Ch'rt 4in'+ 3ei)n &
=ork Or*er ;or ' Bui+*in)F
4in'+ 3ei)n & =ork Or*er
3ei)n=ork
Or*er
Site
Sure
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!stimate (cti'ity 3urationActiit< 3ecri/tion
A Site Sure
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!stablish equence of
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BAR C2ART
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(nother !*ample
?ar Chart
Immediate EstimatedActivity Predecessor Completion Time
A None 90B A 15C B 5D G 20E D 21
F A 25G C,F 14H D 28I A 30J D,I 45
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A
:$
09
B-.
4
1.
I
$
-$.
C
.
--.
G
-D
-1:
3
1$
-D:
E
1-
2
1
J
D.
-:D
-:D
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2antt chart can be used as a 'isual aid fortracking the progress of pro$ect acti'ities.
(ppropriate percentage of a bar is shaded todocument the completed work.
The manager can easily see if the pro$ect isprogressing on schedule with respect to theearliest possible completiontimes1.
G'ntt Ch'rt 9 Monitorin) Pro?ect
Pro)re
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A
:$
B-.
4
1.
I
$
C
.
G
-D
3
1$
E
1-
2
1
J
D.
-:D
-:D
-.
onitoring Pro$ect Progress
The shaded bars represent
completed work ?L 3(L /:@.
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A*'nt')e o; B'r Ch'rt
Misual representation of entire pro$ect.
!asy to construct and read.
Traditional ethod;#o computer needed. Progress achie'ed at site e*pressed in
terms of percentage.
!asily produced by all schedulingsoftware.
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4imitation /) Time Uncertainties
=nly one time for the completion of
pro$ect) ometimes uncertainties in determination of
Pro$ect. #o pessimistic and optimistic times1
Can be used for con'entional pro$ects with
set times not for comple* " & 3 Pro$ects.
=nly pro$ects with Fair degree of certainty
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LIMITATION 1 9LAC6 3EGREE O4
3ETAILS
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Mi+etone
6e< 3'te(! board meetings,key dates mark significant pieces of
pro$ect
ey 3eadlines)
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(cti'ity Interrelationship
#o interrelationship) If ( is delayed by / week, what happens for ? & C)
Cannot be clearly portrayed
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T'k A
T'k B
T'k C
T'k 3
/ 8
: @
5J
K 0 /9
(fter defining
Interrelationship)
#etwork diagram
can be prepared
/
:
5
K
8
@
J
0 /9
8.9
8.9 /.@
:.9
8.9 /.@
: cannot tart until / finish,
cannot start until : finishes
/.9
8.9 :.9 .9
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#etwork 3iagram
Clearly shows interrelationship between
e'ents.
Can be used for highly complicated
pro$ects with large acti'ities.
Indicate time required in between two
milestones or acti'ities. 6elpful in
rescheduling, if required. If uncertainties are required, it allows
probability theory for time estimations
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Importance of Planning &
cheduling Failure to plan and schedule leads to e*cessi'e labor cost,
equipment waiting time, delays, waiting for materials,
lack of coordination, and management inability to
react to une*pected e'ents weather, equipment
breakdowns, shortages1
Producti'ity 4oss
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Presentation (ssignment
-,$ 3ee+o/ the =BS ;or the 4o++owin) Pro?ect!
2roup / & K; 6ighway Construction
2roup 8 & 0 ; ?ridge Construction
2roup : & /9 ; ultistory ?uilding Construction
2roup & // ; "ailway Track Construction
2roup @ & /8 ;