bSI NewsbuildingSMART International | bSI Newsletter No.17

8/11/2019 bSI NewsbuildingSMART International | bSI Newsletter No.17

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Regulators Room to promote automated

code checking

Latest addition to buildingSMART rooms

What if a project owner could know at once if a project design meets

the countrys building regulations? What if a designer could get instant,

automated feedback to successive changes as the design is iterated and

improved? What if the information in a project BIM could be understood and

checked by software within a local planning authority?

The reality today is more than a series of what ifs. Building code-checking systems, based on the IFC standard, are taking shape

around the world. But it is early days, and only a small number of

countries have started to explore the use of these automated code-

checking procedures. Clearly, there are many more countries that

could benet.

This is where the buildingSMART Regulators Room comes in. We want

to provide a room for open discussion of regulation and open BIM, explains

Inhan Kim, a professor at Kyung Hee University and chief vice-chairman

of buildingSMART Korea, who leads the room. We want to bring together

government building regulators, researchers and implementers to promote open

BIM-based building permissions and code-checking processes, and explore the

collaborative issues.

Although building codes also known as building regulations differ from

country to country, automated code-checking systems have much in common,

whatever the country of operation. Accordingly, international collaborative

research is necessary, says Inhan.

The rst step will be to form a team with members drawn from a core

group of seven chapters who are interested in the project: Norway,

Singapore, Australia, US, UK, Finland and Korea. The group will share

information on the progress that has been made on automated code-checking

in the different countries some of the countries are well advanced and seek

out opportunities for technical co-operation.

The Regulators Room is still in formation and has its rst meeting in Toronto

during buildingSMART week in October. The creation of this new room to meet

industry needs underlines the strength of buildingSMARTs exible approach tocreating and maintaining these special-interest working groups.The Regulators Room would like to hear from anyone interested in taking part in the

activities of the room. Please contact Inhan Kim, [email protected]

Richard Petrie

conrmed as CEO

Richard Petrie has been

conrmed as bSIs rst CEO,

having joined the organisation

a year ago. He is an engineer,

with career experience in

construction and oil and

gas process plant.

He was formerly

COO at Lloyds

Register, whose

activities include

marine certication.

Speaking of the strategic changes

at bSI, he says, We are developing

a clearer way to deliver standards,

more structured certication and

closer links between the regional

chapters and bSI.

I want to see buildingSMART

become the premier forum foridentifying and executing projects for

better interoperability.

Pioneers of digital plan checking

Norway

Norway has had an e-submission system, ByggSk,

for building permission since 2003, allowing anapplicant to le a submission online and use

web services to collect information from multiple

government data sources. The next step is a system

that can check building designs. Norway is looking to

overcome the technical barriers to an ePlancheck

system a concept has been tested and is

collaborating with bSI, OGC, ISO and CEN to solve

the issues.

United States

The Fiatech organisation is part-way through its

AutoCodes project to enable automated code-checking with BIM. The project is now into phase 2,

having created a proof of concept in phase 1. The

long-term objectives of the project include the

development of an extensive, open-source rule set

library for industry and regulatory bodies.

SingaporeThe e-submission system from Corenet which stands

for Construction and Real Estate Network allows

industry professionals to submit electronic plans and

documents to the regulatory authorities for approval,

and includes areas such as planning approval, building

and structural plans, and re safety. An integrated plan-

checking tool, covering different authorities and utilities,

is being developed.

Korea

Korea has had an internet-based Architectural

Information System for building permission since2004. But an ambitious project launched in 2009 has

developed a BIM server for checking the compliance of

building designs. The SEUMTER system will provide

quality assessment and code checking, and further

R&D projects are extending its scope.

Role of the Regulators Room

The Regulators Room has yet to dene its

mission but rst indications are that it will

encourage the early adopters of

e-submission systems to share their

experiences and boost interest

compare maturity of development

among participating countries

consider the technical issues of:language and syntactic code translation;

how a code-checking system can

accommodate BIM designs; and how to

implement a broad range of applications

that are stable, secure and compatible

with each countrys existing system.


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Case study

Comparative study explores the benets of BIM

Left: Shanghai comparative study: the four tower

blocks that beneted from BIM

Above: Clash detection and the avoidance of errors:

ventilation systems and outlets can be sited to

avoid straddling two ceiling tiles

Results of BIM v CAD pilot

Does BIM really achieve the cost and time savings its supporters claim?

Is it better than traditional CAD? What do comparative studies show?

Open repository provides unique IFC resource

The problem is that true

comparative studies are rare. A

large project is often a one-off and

supposedly repeat projects will havevariations resulting from timing and

location. So a pilot project with near

identical buildings in China, with input

from the BIM Design and Research

Centre in Beijing, presents an unusual

opportunity to compare like with like.

The pilot took a residential

development in Shanghai. For the

purpose of the pilot, it was divided into

two zones: the North Area (with four

tower blocks) and the South

Area (with ve blocks). Both

areas were initially designedin CAD software, but as the

pilot began, the North Area

housing blocks were completed with

a BIM and 3D designs, the South

Area blocks with CAD and 2D bills

of quantity. The BIM Design andResearch Centre modelled the North

Area buildings in BIM.

Thirty days on, results were

compared. A primary aim of the

project was to identify the time taken

to complete the design and extract a

bill of quantity from the design. Both

the CAD team and the BIM team had

achieved their aim but the time

needed was different. The CAD team

completed their tasks in 185 days,

while the BIM team had needed only

111 days. This was a realproject, so it meant that

the owner received the

bill of quantity 74 days

sooner.

The architects and

structural engineers

worked in the

same model;

the building

services engineers

also shared a model.

The close collaborationbetween the disciplines paid off,

with dividends of time saving and

increased accuracy and quality

clashes were detected and removed,

and design quality was reckoned to

have improved by 50%.

The BIM Design and Research

Centre were satised that they

had proved their proposition

that collaboration creates value,persuading the project owner that BIM

is an improvement on traditional CAD

approaches.

At the request of the client, the project

name and client are kept anonymous.

A repository of IFC models has

been set up by an academic in New

Zealand and it is open to the BIM

community around the world. This

shared resource means that anyone

who wants to conduct tests on an IFC

model has a variety of existing modelsto draw on.

A major issue is just nding models

that you can run tests on, whether

you are a commercial software

tool developer or a researcher at a

university, explains Professor Robert

Amor, head of the Department of

Computer Science at the University

of Auckland. I thought that an open

repository of IFC models would help

meet the need.

A developer or researcher wantingto run comprehensive tests on IFC

software tools might need access to

a variety of IFC models, representing,

for example, several versions of the

IFC, various sizes of model, specic

types of building and models with

known issues (to ensure that the

system being developed will nd them

as well). Models containing data for

various MVDs or for specic entities

within the schema are also needed.

The repository is building up a wide-ranging resource.

For researchers, the repository

means that tests undertaken by one

group can be veried and contrasted

by another group, continues Robert.

There are several research papers

providing analysis and metrics of IFC

models, but as the models are not

publically available, no other group

can check to see if they get the same

results.

To nd the models, Robert has

worked through several sources:

buildingSMART certication models,

models used in bS roadshows and

research projects that have produced

IFC models as part of the project. In

government-funded projects, there isoften an impetus to make the outputs

available to all. I gained a very nice

set of models from NIST in the US,

which were part of their work in

developing the CIMsteel standards

and looking at mapping that through

to IFC, he adds.

Currently, there are over 100

models available for use, with a

further 150 to be uploaded. The

repository is completely open and free

to use by the whole community, with

the models gifted under a creative

commons licence to guarantee

they are usable by anyone in the

community.

Visit: http://openifcmodel.cs.auckland.ac.nz/

The duplex

apartmentproject

model was

produced by

K. Hausknecht

in Germany

for a design

competition


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BuildingSMART International

ExCom

Chair: Patrick MacLeamy

Deputy chairs: Reijo Hnninen and RassoSteinmann

CEO: Richard Petrie

Treasurer: Nick Tune

User lead: Kjell Ivar Bakkmoen

Technical lead: Francois Grobler

Members: Alain Maury and Deke Smith

Secretary/business manager: Chris Groome

Newsletter & communications

Editor: Betzy Dinesen

Designer: Jane Thompson

Contact points

[email protected] (Francois Grobler,technical lead)

[email protected](implementation and certication)

[email protected] (Thomas Liebich, IFC matters)

[email protected](user lead)

[email protected] (Product Room and

bS Data Dictionary)

[email protected] (Jan Karlshj, Process

Room and IDM)

[email protected] (ChrisGroome, bSI matters generally)

[email protected] (WarwickHunt, website matters)

[email protected] (book-keeping)

[email protected] (newsletter)

Around the chapters

User groups ourishing at bS Finland

BuildingSMART Finland (bSF) now

has six working groups, covering a

range of projects from education to

infrastructure.

This has been an extremely

active year at bS Finland, says Tomi

Henttinen, who chairs bSF. We have

several new user groups and have

seen some very productive work.

A new infrastructure group has

been formed, building on the work

done by a research programme

known as PRE that aimed to create

new procedures for in the words of the programme built environment

process re-engineering. The bS Finland infra group consolidated the efforts of

one of the work packages of PRE, nalising an upgrade to LandXML, the Infra

Model 3 (IM3, a data exchange format), and the group remains active in this

work through the bSI Infra Room.

The Finland group has other work underway, potentially of global interest.

One effort is its BIM guidelines for infrastructure, being drafted in Finnish butwith the aim of having an English translation as well.

Other groups are pursuing special-interest activities: there is an MEP group,

a group for architects and engineers, a client group and an education group.

Finally, a city planning group has secured most of the funding needed for a

project to study the existing interfaces between BIM in buildings, infrastructure

and city planning, and to create guidelines. This is an ambitious project, with

huge scope, but we are making a start on it, says Tomi.

Toronto week

The buildingSMART week

of meetings takes place in

Toronto, hosted by bS Canada.

The principal meetings are

on 2729 October (Monday

to Wednesday), followedby an industry day. The bS

week coincides, as usual, with

meetings of ISO Technical

Committee 19, Sub-Committee 13, so that bSdelegates can attend both

sets of meetings.

BIM guides wiki project

Call for volunteers to review guidesAround the world there are hundreds of publications and guides on how to run

a BIM project. The Process Room is part-way through a project to list all the

guides in one place, review them and provide analysis to discover common

elements and attributes. The reviews will provide a framework for developing

industry guidelines. By early September 2014 almost 60 guides had been

identied and a number reviewed, with examples from North America featuring

strongly. The guides come in varying forms and include national, single city andsingle association guidelines.

The project needs more volunteers to perform guide reviews and ag up new

documents that could be incorporated into the wiki.

Contact Susan Keenliside at [email protected] BIM Guides Wiki Project http://bimguides.vtreem.com/bin/view/Main/

BIM ambassador appointed in France

In June, the French government announced that it was making

BIM a priority for the construction industry and appointingBertrand Delcambre, president of research institute CSTB, as

BIM ambassador.

Alain Maury, bS France, welcomed the appointment.

Bertrand Delcambre has been an excellent supporter of IFC

since the beginning, he said.

A BIM strategy is being developed swiftly, after a period of

consultation, which closed on 5 September. The consultation

probed attitudes towards BIM, benets and barriers, and how respondents saw

its likely impact on working methods.

Bertrand Delcambre, dubbed Monsieur BIM by the media, now sits within

the Ministry of Construction. The professional community agrees that we must

prioritise the development of building information modelling so that we can

jointly meet our quality goals and reduce construction costs, he said in his

mission statement.

IFC4 coordination view update

The model coordination view, now at thebeta stage, is out for public review until

30 September. It comprises two separate

views, the reference view and the design

transfer view, which will replace the model

coordination view for IFC 2x3. We are

expecting feedback from the softwarecompanies and power users those

with a senior role in IT among the end

users, says Thomas Liebich, who led the

development. Once the feedback has

been incorporated, the

view will become a bSstandard and can be

used immediately by

software companies,

some of whom are

already showinga strong interest in

implementation.

IFCdesign transfer view

IFCreference view

bSI NewsbuildingSMART International | bSI Newsletter No.17

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