The Integrated Design Process

7/31/2019 The Integrated Design Process

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The Integrated Design

Process

-Manas Phatak

Roll No.-146


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Problems in the conventional

process The architect may develop a concept design that is

agreed to by the client;

After both parties are committed, then engineers andother key actors are brought in, to ensure that thechosen concept can perform as efficiently as possible;

That is too late, and the designs performance potentialmay be limited from its inception;

There are also new specialties, such as day lighting,thermal storage etc. that require skills not often found in

conventional design firms; At a later stage, there may be attempts to graft high-

performance technologies on to the design, but that isusually an expensive failure.


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Design iterations are inevitable in any design process, butthey only make a positive contribution if carried out early inthe process.

ConstructionDocuments

Constructionsupervision

Bidding &negotiation

Projectdefinition

DesignDevelopment

Conceptdesign

Pre-design

Basics Design Construction

The Conventional Process


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The principle is to explore potential issues at the verybeginning of the design process, and to hear viewpoints of therelevant actors in the process - from design to operation;

And then to follow a design process that explores performanceoptions in schematic way, before making a decision to

proceed with contract documentation; This reduces the possibility of unpleasant surprises later in the

process.

Integrated Design Process


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IDP is a method to intervene in the design stage to ensurethat all issues that can be foreseen to have a significantimpact on sustainable performance are discussed,understood and dealt with at the beginning of the design

process; IDP helps the client and architect to avoid a sub-optimal

design solution;

It enables the achievement of high levels of buildingperformance through integrated systems design.

What is IDP and why is it a Good Thing?


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ReviewFunctionalProgram,establish

preliminary

targets

Assemble thedesign team;

identifymissing

specialties

Develop aconventional

referencedesign

Assessconditions ofsite and any

existingstructures

DevelopConceptDesign

Monitor actualperformance;

optimizeperformance

Performance targets for:

Non-renew able resources,Environmental Loadings,indoor env. quality,Long-term performanceFunctionality,Social & economic issues

Preliminary

v entilation,heating and

coolingdesign

Hold a

kick-offDesign

Workshop

DesignWorkshop

DesignWorkshop

DesignWorkshop

Design

Workshop

JobmeetingsJob

meetings

Jobmeetings

Jobmeetings

Consider sitedevelopment

issues

Selectbuildingstructure

type

Developbuilding

envelope

design

Developpreliminarydayli ghti ng,lighting and

power design

Preliminaryventilation,

heatingand cooling

design

Screenmaterials for

environmentalperformance

Completedetailed

design andcontract

documents

Develop QAstrategy forconstruction

and

operation

Completeconstructionabove grade;

Commissioning

Site take-over,existing building

decontamination &deconstruction,

excav ation andFoundations

Decide ondesign option

for finaldevelopment

Integrated

Design

Process

Larsson 2005

Note: Sequence of steps isapproximate and may varyaccording to project needs

UseGBTool


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Alice Turner Library,Saskatoon

>50% energy reduction 60% GHG reduction

Excellent day lighting


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A reduction in energy consumption through better orientation,windows, walls, roofs and equipment will;

Reduce fuel and cost required for operation;

Reduce the size and / or number of boilers, chillers and pumps needed;

Reduce future maintenance and replacement costs;

Benefit of high performance

A design that maximizes day lighting will reduce the daytime lightingrequirement, which;

Will reduce electrical consumption for daytime lighting;

Less daytime lighting will reduce the need for cooling;

This will reduce duct sizes and chiller capacity needed;

Which will, in turn, reduce current operating cost and futuremaintenance and replacement costs;

Both of these approaches will reduce greenhouse gas emissions.


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A committed or at least open-minded client;

A multi-disciplinary design team committed to high performance;

A design facilitator and others with specialized supporting skills inenergy, ecology, indoor environment, materials, costing, etc.Include also a senior level university student to act as recorder;

Development of a reference case design, including energy analysis;

An initial workshop or charrette, including all relevant actors, totable the reference design and to generate a full spectrum of ideasfor one or more high-performance options;

Additional workshops at key points in the process, involving allrelevant actors;

The use of energy and other simulation tools to assess potentialperformance during the design development process;

Selection of a design option based on a full cost-benefit assessmentbefore contract documentation begins.

Key elements in IDP


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IDP results in design integration, which results in betterperformance;

For example, a design that maximizes day lighting will reducethe lighting load;

Reduced cooling requirement will reduce duct sizes and chillercapacity needed;

Current operating cost and future maintenance andreplacement costs will also be reduced;

And all this reduces greenhouse gas emissions.

Results


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The traditional design process locks in bad decisions thatwill limit performance during the first week of the process;

The integrated design process offers a path to unlock the fullpotential of the process by involving all key stakeholders inthe process.

Conclusion


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Thank You