planning for construction

7/30/2019 planning for construction

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Pre-Planning for Construction

HIGH RISE


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A detail construction planning is a pre-requisite elementto ensure the project in completing on time, planning andmeeting the budget, quality, safety and environmentalrequirements. This is particular important for success with high-rise residential building construction in view of its repetitivenessand the amount of resources required. The construction of highrise residential building is in fact a reflection of the set up of a

factory, factory production, satisfactory handover the productsto the end users. Mr. Chris Henrickson has defined constructionplanning where it involves the choice of technology, thedefinition of work tasks, the estimation of the required resourceand durations for individual tasks, and the identification of anyinteractions among different work tasks.

INTRODUCTION


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Architects

Planning engineers for the supporting structures (engineering design and structural analyses)

Construction and site management (resident engineer)

Planning of the technical building services (particularly heating, ventilation, sanitation, cooling and air-conditioning)

Interior designers

Construction physics and construction biology

Planning and site management for data networks

Planning of the lighting and materials handling

Planning of the electrical and electronic systems

Planning of the facades

Surveying engineers

Geo-technology, hydrogeology and environmental protection

Design of outdoor facilities and vegetation

Surveying of the actual situation in surrounding buildings

Disciplines and Experts involved:


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PLANCONSIDERA

The following are some of the basic considduring the construction planning process :

Statutory Obligation would include the Building Regulation / Building Ordinance andthe duty of the main contractors to provide coSupervision and to notify Buildings Departmeof regulations that would result from carryingshown in approved drawings.

Contractual Obligation is the commitmContractor and the Employer in delivering thaccordance to the terms and conditions as laiddocuments. This would also include special te

required by the Employer together with desigrequirements from the Architects and Enginee

Social Obligation- involves the care of woneighbours or public outside site boundary. Fhave to provide a safe working environment tnecessary welfare facilities for all workers woensure they are getting paid from the respectitimely manner.

Site Characteristics - Construction planntailor made to suit the site characteristics

is a one-off exercise, which is not fully apidentical projects although the concept m


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Subdivide the construction project into construction phases everyone having interdepactivities which may be executed into a unique production rate. The use of a unique prointends to simplify the planning process but it is not a fixed rule;

Determine the construction phase rhythm: Based on the overall project strategy a wodetermined for each construction phase;

List all the activities, along with their crews. Verify possible dependencies between activdifferent construction phases. These ones may be grouped together or being changed phase to another;

Design optimum crews: It is necessary to consider the selected construction technolog

as well as site constraints. Considering this as well as the productivity measurements anmethods information obtained during initial case studies;

Production velocity for each crew: The optimum crews as well as their production ratesduring the initial case studies;

Divide all the activities into two groups: the main activities for each construction phasegroup of secondary or complementary activities which usually are very fast with low labconsumption, and hence small duration. The main group had up to 80 activities in the m

studied.

Generating a Detailed Pre-planning of thConstruction


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Calculate construction volumes for each construction area and the main activities: Convolumes were calculated or each area (i.e., basement, floor 1, etc.). This is different thanbudget all round volume calculations, because this one is directed towards its use for rconstruction planning;

Calculate the time required to built each area: Divide the area volume by the productioeach crew. This will yield different time periods for each activity;

Adjust the number of optimum crews to generate almost the same production rhythmcrew working in the same construction phase. In order to adjust the construction time equal rhythms, the number of optimum crews is changed. Crews shall be designed in sall of them will be performing productive work continuously.

Develop the line of balance scheduling by plotting sequentially all the construction actaccording to technical interdependencies and balancing the crews in order to avoid cofloor. Determine the total duration of the construction phases and the time buffer betwconsecutive ones, thus calculating their start and finish dates.

continued


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Eliminate waste

Minimize variances

Use visual management

Produce flexible plans

Sequence the schedule

Characteristics Of TheGenerated Plan


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Extensive soil analyses are required to determine the strensubsoil before deciding on the location for a high-rise bu

The forces acting on the high-rise structure in the event oearthquake must be taken into account when erecting higbuildings in areas prone to seismic activity.

The same applies to wind loads and particularly to the dyeffects of windstorm or earthquake loads.

Carrying out model experiments in a scientific laboratoryspecialized test institutes.

Technical Analyses


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FormworkSliding System for creatingthe core ofhigh risestructures withspeed.


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The Quantitative Space Requirement AnalysisMethod) consists of thr

Project analysis & recipe creatio

Space requirement quantification

Space requiremen

Quantitative Space RequAnalysis Method


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Subprocess I helps panalyse the p

determine what materrequirements ne

quantified. Furthehelps planners create athat shows how to

Subp


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Subprothe QSRA

helps ptransformrequirem

requ

Subp


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Finally subprocess III

resembles the Storage AnalysisChart for representingthe spacerequirements. Therepresentation of the materialspace requirements is a separateprocess, because the materialspace requirements support twointerdependent yet different

decisions: material procurement

material storage decisions.

Subprocess III


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The accuracy of the output of the method is heavily dependent on

accuracy with which the 4D-model is created. That is to say, the mdependent on how well a software program can interpret the datatogether. If the 4D model is not properly modelled, a quantity takcalculation program will have trouble triangulating the surface arcalculating volumes of building components.

The limitation of the method is thus that it is dependent on a softw

program that can accurately calculate volumes and surface areas capable of properly adding4

Furthermore the reliability of the calculated material space requirdependent on the proper creation and interpretation of the recipeeffort to overcome this users of the QSRA-Method should be carethe created recipes from being multi-interpretable.

Limitations of the QSRA method


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BHARATI VIDYAPEETH, COLLEGE OF ARCHITECTURE

Certificate of Completion

is hereby granted to

ANIL B. PATEL

to certify that he has completed to satisfaction the study of Electives topic

High-Rise

Jyoti Nair, Subject Incharge (Electives)


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Case Study Burj Khalifa

2004 2005


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C

aseStudy

Burj

Khalifa

2006

2007


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C

aseStudy

Burj

Khalifa

2008

2009

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