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buildingSMART UKI

The role of standards

Nick NisbetTechnical CoordinatorbuildingSMART UK & Ireland

buildingSMART UKI

• Membership drawn from users, vendors and associations

• Active in buildingSMART International

• Initiated the UK Government BIM Program and led the consultation

• Active in BSI B/555 and BS1192 part 4 and BS8541

• Joint controllers of COBie with US buildingSMART Alliance

• Delivery of COBie-UK-2012 and COBie / IFC Type Templates (v1)

• UK COBie trials stage 1 and stage 2

• UK EIR (Employers Information Requirements) template

Why use BIM ?

CAD and GIS• Boundaries• 2D or 3D• Fragmented• Obscure Meaning

DOCUMENT / IMAGE

• Not usable 

• Not re‐usable

BIM• “Mug”• Shapes and symbols• has Materials• has Capacity• kind of Equipment• touches “Table”

Sharing …

• When ?• now, • later, • again, • continuously

• With whom ?

• Yourself,

• Your colleagues

• Project partners and contractors

• Clients

• Regulators

Strategy for industry improvement 

One input, many workflows

… Structured …

DATABASE

SUBMISSION

BI

M

SOFTWARE

RULE CHECK

VIEW/BROWSE

BIM IFC

Improving accuracy and quality

• One input, many checks

© AEC3 Ltd   www.aec3.com

… Information

(courtesy HLN and Bryden Wood)

Improving productivity 

One input, many outputs

IDMProcess model

IFCData model

Sharing …              Processes• Repeatability

• Process improvement

IFDData dictionary

Structured …         Product• Facilities and Assets 

• Capacity and Capability

Information …       Terms• Properties 

• Classifications

Is there an opportunity for BIM product data?

8© 2014 AEC3 Ltd

Business Case Publisher : Manufacturer Consumers : Designer

Accessibility

Clarity

Accuracy

Efficiency Privacy

Early involvement Non‐committal

More intimately Exploratory

Publisher : Manufacturer Consumers : Designer

Ownership Over‐specific

Control Over‐formal

Maintenance

Validation

Liability

Issues:

Project, In-use and Other

Proj

ect

•B

riefin

g•

Des

ign

•C

onst

ruct

ion

•H

ando

ver

Other

• Product data

• Cost and impact data

• Utility and map data

• Approvals

Facility

• Use

• Operation

• Maintenance

• Replacement

Project In‐use

In‐use

Project

Contractual and non-contractual processes

External Data Sources

IFC Information Environment

Scheme Analysis ProductData

CostData

ScheduleData

O&MData

SpaceNeeds

PerformanceData

Space requirements, temperature, humidity, lighting, sound etc

Shape, layout and location of spaces,structure, services, walls, doors etc.

Performance data including type, mass,U value, etc.

Analyse/simulate thermal, lighting,acoustic, environmental impact etc.

Identify and select particular products.

Costs for individual objects includingbuy/sell, lifecycle, replacement etc.

Assign objects to tasks, schedule time for tasks, sequence, task logic

Assets, work plans/orders,service life, condition, H&S plan

Data forDisposal

Process

Requirements library

Construction types library

Performance data library

Product library

Task library

Task libraryService life performance library

buildingSMART UKI

What should Product BIM cover?

Nick NisbetTechnical CoordinatorbuildingSMART UK & Ireland

An overview of Product BIM ?

Facility

Component

3 July 2014 13

An overview of Product BIM

Facility

Systems Type

Component

3 July 2014 © AEC3 Ltd 14

buildingSMART UKI

What does IFC cover?

Nick NisbetTechnical CoordinatorbuildingSMART UK & Ireland

An overview of Product BIM

Ifc Building

Ifc System(s)

Ifc Element Type

Ifc Element

3 July 2014 © AEC3 Ltd 16

Shape (explicit)

Shape (extrusions)beams, pipes, ducts, walls etc.

Shape (topology)line representations for pipe, duct, etc.

Building Elementswall, door, window, roof, stairs, etc.

Relations Between Elementsholes, chases, voids, zones

Furnitureinc. system furniture

HVAC Equipmentchillers, fans, pumps, boilers,coils, cooling towers, heaters,heat exchangers, etc..

Electrical Elementstransformers, motors, generators,switches, protective devices,power and communication outletspanels, cubicles

Fire Protection Elementssprinklers, hose reels, hydrants, wet/dry rising mains

Sanitary ElementsWC’s, urinals, baths, bidets, trapsgulleys

Spaces, Space Structurespace, storey, part, building, site

Structural analysis:structural members, boundary conditions, connections, supports, loads, etc.

Zones, Compartmentsfire, workstation, rising ducts,shafts

Structural Elementsmembers, profiles, rebars, properties, joints, features, surface

IFC

Systemspiping, ducting, cable, structural

Lightingfittings, rendering, photo-accuratelighting

Grids

Manholesmanholes, inspection chambers,access chambers, meter chambers,valve chambers

Controls, Instrumentssensor, actuator, controller, gauge, meter

Draughting

Time Seriestime related events

Holes and Basesholes, sleeves, packing, framing, upstands, vibration isolation

Constraintsrules, specifications, requirementstrigger conditions

Accessoriesbrackets, drop rods, steel sections, bracket assemblies, screws, bolts etc.

Environmental Impactembodied energy, CO2

Asset Managementmaintenance history, inventories

Air Handling Unit

Boiler

Pump Set[Physical

Association]

PreheaterValves

Luminaires[Spatial Association]

Helprequest, action, permit, warranty,operation

…and

30NameTitle

NameTitle

NameTitle

NameTitle

NameTitle

NameTitle

NameTitle

NameTitle

NameTitle

Actorspeople, organizations, addresses

Costingcost planning, estimates, budgets,whole life

Work Plans and Schedulesinc. nested schedules, resource allocation

Orderswork orders, change orders, purchase orders

Associated Documents

ClassificationOmniclass

Uniclass

External Data

Connectivityservices, structure, building

Geographical Elementsfeatures, contours, regions

Coordinate Mapping geodetic, cartesian

Civil ElementGeneric civil element

Spatial ZoneGeneric infra region

…and

A product has many aspects

Product

Constituents

Parts

Properties

Complex properties

Shape

Service Life

Quantities

Functional measures

Applied Values

Cost Values

Environmental Impacts

Identification Attributes

BS 8541Construction Library Objects

BSI Manchester6th December 2012

21© 2010 AEC3 Ltd

BS8541: Construction Library Objects

• BS 8541-1:2012• Part 1: Identification and Classification

• BS 8541-2:2011• Part 2: Recommended 2D symbols of building elements

• BS 8541-3:2012• Part 3: Shape and Measurement

• BS 8541-3:2012• Part 4: Specification and Analysis

Three types of Construction Library Objects

BS8541 Templates Generic ProductPart 1: Identification

Object type and predefined type

Authorship

Yes Yes Yes

Multiple Classifications

Yes Yes Yes

Part 2: Symbol Standard Standard Standard

Part 3: Shape and measures Notional Typical Actual

Part 4: Specifying attribute names

Yes Yes Yes

Specifying attribute  values

None Typical Actual

Part 1: Identification and Classification - Example

• Object Type• Name• Description• Classifications• Authorship

Part 1: Review Object Naming Conventions

Role Category Present‐ation Source Type Sub type

Source Type Sub type

TypeNBL Sub type Detail

BS 1192 2007 and BS 8541 (symbol)

BS 8541 Part 1

NBL

Type Sub type

buildingSMART UKI templates

Detail _UK

WBSSystem

Product

Part 1: Multiple classifications

• CAWS• Uniclass J&K• Uniclass2 WR Uniclass L 

Uniclass2 PR

Uniclass G&H 

SFCA 

NRM 

Uniclass2 EL

Part 2 : Recommended 2D symbols - Example

Principles and application

Example – Part 3: Shape and Measures

• Shape (as geometry)• Measures (as attributes)

• Level of detail by – purpose – available information

Part 3: Measures - Example

• Shape (as geometry)• Measurement (as

attributes)

• Level of detail by – purpose – available information

Part 4: Specification, Selection and Assessment

Attributes for specification and selection

Part 4 : Specification, Selection and Assessment

Assessment

COBie Completeness

UK demand matrix

IFC & COBie demonstration by end December 2012:

G251 L513 External walls G252 L384 Internal walls G321 L413 Windows G322 L411 Doors G44 L721 FFE Sanitary G49 L821 FFE other G541 L747 General lighting G554 L761 Audio visual communications G555 L761 Telecommunications communications G556 L761 Data network communication

Uniclass 1.4 Table G reference(Elements for construction)

Uniclass 1.4 Table L reference (Construction products)

Templates and Demand Matrix

Which attributes and when ?

Making the links

BS8541: Construction Library Objects

• BS 8541-5:2014• Part 5: Assemblies

– Whole and parts– Products and background– Connections

• BS 8541-6:2014• Part 3: Product Declarations

– ?

Part 5 : Assemblies

overall assembly

constituent part

constituent part ….

aggregation and location relationship

Part 5: Accessible WC packages - Example

Part 6 : Product declarations

Declaration

Identity Values Scenario

• Document• Web-page• Freely available

• Declaring body?• Testing body• Audit body ?

• 13501-2• E30/EI30/EI30S• Extended application

document: external constraints on size

• Label• Literature • Web-page

• Freely available• Product BIM ?

• Declaring body?• Testing body• Audit body ?

• Rankable: P.x or not P.x ? • Comparable: P.x >= Q.x ?• Calculation: Sum of P.x ?

Part 6 : CPR Example

BS EN 15942 Sustainability of construction work

Environmental product declarations

• Master • Production • Transport • Construction • Use • Operational Use • End of Life

buildingSMART UKIThank you!

Any questions?

Nick Nisbet nn@buildingSMART.org.uk

Technical CoordinatorbuildingSMART UK & Ireland