'BIM'에 해당되는 글 2건

  1. 2007.08.21 [book]Inroducing Revit Architecture 2008 - BIM for Begginers (6)
  2. 2007.04.20 (Mis)understanding BIM (2)

사용자 삽입 이미지


사용자 삽입 이미지

8월 1일 주문한 책 도착.

배송료 포함해도 국내 업체 대행 구매보다 싸다. (물론 책 정가보다도 저렴)

도량형 단위가 mm가 아닌 inch로 돼 있어 보는데 불편하겠다는 생각은 있지만

1장을 Understanding BIM 으로 시작하는 등 구성이 좋은 것 같다.

책에 대한 평가는 읽고 나서 다시 한번 하겠다.



새로운 프로그램 학습에 대한 열의가 예전만큼은 못한것 같다.

툴은 진화하고 나는 퇴보하고... (덴장 아직 새파랗게 젊은데 -_-+)
Posted by DzArchi 트랙백 0 : 댓글 6

(Mis)understanding BIM

Nigel Davies, 26/03/07

I’ve been working with “BIM” (Building Information Modelling) technologies for around 10 years now. It would be longer, but before that BIM was known by a variety of other acronyms, none of which adequately summarised what BIM is. Compare this to using the acronym “CAD” (or CADD as some people refer to it). CAD means Computer Aided Design which is so vague as to be virtually undefinable, yet we all inherently know what CAD means. The context we use it in helps to define it. BIM, on the other hand, has very little context at this point and when it does it is often confused and unclear.

What is BIM and why is the industry so confused? To answer that question it is probably easier to first define what BIM is not.

BIM is not 3D
3D alone does not give you a Building Information Modelling solution. Consider a Sketchup model - a representation of a building, project or component in 3D. There is no added intelligence to give you any “data” about the project. To understand what each element represents it is necessary for the person using the model to interpret the geometry. As soon as you add the model into Google Earth it suddenly inherits additional project information: where it exists spatially. The model has now become “BIM” (albeit simply).

Conversely, BIM does not have to be in 3D. It is quite possible to have a BIM model in 2D alone. A simple example is the use of a line and arc to represent a door. As with the Sketchup example above the lines and arcs have to be interpreted as a door. Once those elements have been put on a doors layer (e.g. A-G322-G-Door in the AEC CAD Standard) they now have added intelligence; building information that tells someone using the file what those elements represent. Taking that further the elements could be part of a block or cell with attributes (tags) added to them. This is a simple 2D Building Information Modelling concept.

BIM is not Revit
Autodesk have got a powerful marketing machine… For years now I’ve heard people tell me how they would do something in “CAD”. “What software?” I always reply. “CAD, you know, Autodesk CAD”. The same thing appears to be happening with BIM. The terms BIM and Revit are becoming interchangeable. Be aware that Revit, whilst being a BIM solution, is not BIM. Even if you use Revit you can use it without being BIM at all.

BIM is not a single database or “single building model”
This is one of the main confusions with regard to adopting BIM. A lot of people believe BIM has to be a single database from which every party extracts their information in the format they require. Even some software manufacturers describe BIM as having to use a single database in order for it to be BIM:

“Building information modelling solutions have
    three characteristics:
(1) They create and operate on digital databases
    for collaboration.
(2) They manage change throughout those databases
    so that a change to any part of the database is
    coordinated in all other parts.
(3) They capture and preserve information for
    reuse by additional industry-specific
    applications.”

Or

“The idea behind a building information model is
    that of a single repository. Every item is
    described only once. Both graphical
    documents—drawings—and non-graphical
    documents—specifications, schedules, and other
    data—are included. Changes are made to each item
    in only one place.”

It is better to think of BIM as a series of models. You may have an architectural model (in 3D), you may have a structural model (in 2D). Each of these models may be made up from a series of DGN or DWG references to allow individual access to a package of work. BIM doesn’t have to be any different to existing CAD in terms of processes and data management.

BIM is not Project Lifecycle Management
For some reason as soon as BIM is mentioned the assumption is made that “it’s only BIM if everyone in the team, from conception to facilities management is involved”. While well-managed data will improve the flow of information through the design, construction and post-construction phases, this is not a definitive requirement of BIM. Far from it; I would always recommend anyone starting down the BIM road to consider only their internal benefits in the first instance. Understand where the production “bottlenecks” occur and see if there is a BIM solution that can address them. It may be drawing or schedule production, or the dynamic linking of the two together, or any number of design processes that can be improved internally. Only once you have developed a sound working method for your project can you start to consider the rest of the office. Only once you have developed sound working procedures for your office can you start to consider the implications of including other collaborators into the equation. Take it one simple step at a time; there are an infinite number of shades of grey between black and white.

BIM is not Building Information Modelling
I find it helps to think of BIM as Building Information Management rather than modelling. Just like CAD isn’t only vector-based lines, arcs and circles, but is instead a mix of vector elements, raster images, printer configurations, plot styles or pen tables, Word files, spreadsheets, and a whole host of other hybrid formats and data, so is BIM. It’s not a single piece of software, it’s not a database, it’s not a 3D model, it’s not a particular phase in a project - although it can be all of these things.

So what is BIM?
In simple terms BIM is the management of project information, both the construction of that data and the iterative process of exchanging it. BIM is the added intelligence to project data that allows anyone to interpret that data correctly, removing the risk of assumptions. BIM is the process by which the right information is made available to the right person at the right time.

출처 : © 2007 Eat Your CAD (http://www.eatyourcad.com/article.php?incat_id=1494)


BIM 에 대한 여러가지 자료를 보고 있지만 간결하면서도 정확한 정리인 듯 싶다.

건축분야 특성상 다양한 분야의 다양한 전문가들이 하나의 건축물을 완성하기 위해 참여하고 있으며
참여자들간의 정확하고 신속한 의사소통은 프로젝트의 성공을 위해 매우 중요하다.

BIM은 효율적인 의사소통을 위한 정보의 구축 및 활용에 대한 프로세스를 지칭한다.
이는 어느 특정 하나의 툴에 의해서 이루어 질 수 없으며 정보에 대한 정확한 정의 및 작성 절차에 대한 구성원들간의 정확한 협의가 필요하다.

'시설물의 생애주기비용을 감안한 설계기법' 도입에 대한 가점제 채택을 명시한 "건설기술관리법 시행규칙"에 대한 관심과 Autodesk사의 신제품 출시 마케팅이 시작되면서 BIM이란 용어가 자주 들린다.
많은 사람들이 저마다 다양한 방법으로 설명하고 있지만 정작 중요한점은 놓치고 있는건 아닌지..
정확한 의미를 이해하고 제대로 된 BIM 구축을 위해 노력이 이뤄졌으면 하는 바램이다.

Posted by DzArchi 트랙백 0 : 댓글 2