bim for the building life cycle

BIM FOR THE BUILDING LIFE CYCLE

WEEK #8

1

BUILDING INFORMATION MODELS COURSE

PROF. DR. SALĐH OFLUOĞLU

ITU & MSGSU| FAC.ULTY OF ARCHITECTURE

BUILDING AS A MULTIDISCIPLINARY ACTIVITY

2

Participants of building

process

The collaborative nature of

building activities

The need for good

communication and

effective information

exchange

Difference of information

types, expectations and

priorities between parties

39 building decision

makers – (Source: Kirk and

Spreckelmeyer)

BUILDING INFORMATION MODELS COURSEPROF. DR. SALĐH OFLUOĞLU

CONVENTIONAL CAD FOR PROJECT COMMUNICATION

• Representation mediums: 2D plans, sections , elevations and details, all independent and not linked for ease of updating

• Generally lack of 3D models

• Only graphic information

• Lack of industry wide utilized informationexchange standard

• Existing problems• Translation errors• Data redundancy• Coordination burdens

• Delays in project completion time andadditional cost

CAD data exchange with

defacto standards


BIM BASED COLLABORATION

4


INTEGRATED PROJECT DELIVERY (IPD)

5

CONCEPTUAL DESIGNDESIGN AND

DOCUMENTATION

SHOP

DRAWINGS MAINTENANCECONSTRUCTION

• Sharing information with project participants (information stewardship)

• Long term partnership attitude

• Working together with trust


BIM DATA MODEL: VIEWS

6

• Embedded meaningful data sets in objects for given tasks

• Layers of data that can be extractable for requiredrepresentations andcalculations in a related format

• The same object can containmultidisciplinary disciplinaryviews and act as a centralinterdisciplinary data repositoryfor inputting and outputtingdata by different professionals.

Views in Eastman’s

Product Model


BIM DATA MODEL: VIEWS

7

Model of Structural Elements

Model of Load-Bearing Structural Elements

Architectural Model

MEP ModelMEP: Mechanical, Electrical, and Plumbing


BUILDING INFORMATION LIFE CYCLE

• Feasibility andPlanning Stage

• Design Stage

• Construction Stage

• Maintenance andOpareations Stage

• Demolishing and/or re-use

8


FEASIBILITY AND PLANNING STAGE

• Concept Development / Schematic Models

- Early feasibility analysis

(architectural, structural, HVAC)

- Preliminary cost analysis

(easy scheduling, zone calculations)

- Marketing through 3D visualmaterials

- Data type is mostly aphanumericaland stored in spreadsheets

• pro forma, a table of spacerequirements, budget, construction cost estimate

• Transfering structured data intoBIM


DESIGN STAGE

• Design Models

- Developed after theschematic design

- Constructed by architectsby including thedocumentation obtained

from engineers

- Semi-detailed 3D model containing essentialbuilding/structuralcomponents (walls, columns,

slabs, etc.) and HVAC elements.

- Simple simulations forfeedback to design decisions


DESIGN STAGE

• Performative Design

and Simulations

1-to assess the decisions regarding

building form, choice of materials,

construction methods and time

2-to save time and money before

the actual construction

Transfering BIM data into 3rd party

applications using IFC or native

BIM data formats

• Structural Analysis

• Energy Analysis

• Light Analysis

• Acoustical Analysis

• Clash detection


DESIGN STAGESIMULATIONS � STRUCTURAL ANALYSIS

• Building structure data

coming from a BIM

software is transferred into

the structural analysis

sofware

• Software can handle the

structural calculations and

make suggestions

• Based on that the

engineer makes size and

location decisons related

to the structural elements

• The data is transferred

back to the BIM modelIFC data exchange between Graphisoft

ArchiCAD™ and ETABS™ software


DESIGN STAGESIMULATIONS � ENERGY ANALYSIS

Translating the IFC data for transfering to the

EnergyPlus™ software

• Deals with HVAC (Heating, Ventilation, Air-Conditioning) related needs

• On an average non-residential buildingHVAC systems constitute 24% of thebuilding’s total cost

• Geometrical data along with HVAC equipment and system definition is obtainedfrom the BIM software

• Currently IFC is not directly supported by anyHVAC analysis sofware. This data has to be translated into the native format of thesoftware through special converters (see left)

• The software then make suggestionsregarding the HVAC need of the building

• There are also newly integrated features thathelp calculating ecological footprints of buildings


Calculating daylight needs for all regions of

architectural spaces

• Deals with calculating thenatural/daylighting, articifiallighting needs of spaces andgenerating , sun/shadingstudies between masses at different times during the dayfor the given geographicallocations

• As a result, The software generally creates rich, color-coded visuals supported bynumerical data

• when calculating the resultssuch factors outside thebuilding as site topography, building orientation and otherbuildings positions can be taken into consideration

DESIGN STAGESIMULATIONS � LIGHT ANALYSIS


Acoustical analysis with the Odeon™ software

• Deals with assessing theacoustical qualities of designed spaces

• Evaluates the 3D geometry by its geometrical form and the choice of materials selected for its surfaces

• It produces numerical andvisual acoustical data andcan also createsimulations.

DESIGN STAGESIMULATIONS � ACOUSTICAL ANALYSIS


MEP Systems Clash Detection

• Asseses the location of HVAC structureacording to building elements

• Determines errors and produces reports

• Saves the addiitonal construction cost and time on the site

• Building collaborators redesign their systems based on the feedback from the software

DESIGN STAGESIMULATIONS � CLASH DETECTION


CONSTRUCTION STAGE

Construction Management

Goals:

1. to achieve a good communication and

efficient data exhange among project

participants

2. to spot the conflicting construction

elements in 3D model/simulations

beforehand

3. to prevent or lower possible extra

construction cost and time

4. to plan labor and construction machinery

schedule

4D CAD modeling techniques

• incorporate time as an element

• link project schedule and geometrical data

in a simulation manner

An animation that is associated with

building scheduleVi-Co Videos

Fabrication issues


MAINTENANCE & OPERATIONS STAGE

• Using the BIM model for maintainance purposes and extend the useful life of the facility

• As-built models

• Possible operations drawnfrom the BIM model

• Renewal of HVAC andelectrical systems

• Installation of a surveillance system for thebuilding

• Development of a disaster/emergencyevacuation plan for a building


MAINTENANCE & OPERATIONS STAGE

• FACILITY/ASSET MANAGEMENT

• Integration of BIM data and FacilityManagement (FM) software

• Keeping the BIM model model up-to-date

• Potential customersof BIM facilitymanagement data

ArchiFM Facility

Management

Software


• One of the top three companies

in the airport facility

management services in the

world.

• They serve 370,000 flights and 41

million passengers annually.

• This case study examines

their domestic terminal

renovation project in Istanbul

Atatuk Airport. The project

covers 60,000 m2 project area

and required a 70 million dollar

investment. Istanbul Ataturk Airport

MAINTENANCE & OPERATIONS STAGEBIM CASE STUDY . TAV HOLDING


• The face of airport terminal

building was completely

modernized. The project

received several international

awards.

• The building project was

prepared by the architectural

division of TAV.

• It was modelled in a BIM

software. Using BIM model they

manage to offer initial cost

estimates for facility

management services.

The 3D BIM Model of the Terminal

• BIM helped the firm for

better design

documentation, data

integration and ease of

updating



• The firm connected the BIM

model with its facility

management software called

TAV Earth.

• With BIM they were able to

coordinate model based on

zonings.

• 3D zone information helped

them also help make

calculation that was difficult

in the past.

New check-in island drawings



DEMOLISHING AND/0R RE-USE

BIM model can be used for differentscnearios for building that are nolonger sutitable or needed for theiroriginal intended purpose

• Building renovation

• Performance improvement

• New adaptive uses

• Demolishing and recycling


bim for the building life cycle

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