Sunday, February 19, 2012

Design-Bid-Build or Design-Build? Which one embraces BIM better?

Design-Bid-Build or Design-Build


These are the two main contract methods in the Middle East. Probably US is also similiar.

Owners loves the first one. Design-Bid-Build.

 Image from Ambro
Why?

Because they can get competitive prices for each phase of the project. First they let the consultants to fight for getting the design job, decrease their profit especially on these days of recession.

Then comes the second part. Now it's contractors turn to bid.

Seems like a smart method for the owner.

Is it?

Each party is responsible for a certain task in the project. For instance an architect is involved in the design part only. He will try to avoid any liability for the later stages of the project. He may not include enough details in the drawings to facilitate accurate bids in the tender.

What will happen then?
Image from Stuart Miles

Disputes, claims etc. The consultant and the contractor becomes enemies.

This is the worst thing that an owner would want in a project. A project can only succeed if all the parties work as a team.

I can hear you saying but the owner can get Project Managers to protect his rights. True! But it comes with an extra cost.

So far the problems were not even related to BIM.

Now, let me tell you about my experience so far.

Consultant builds the BIM Model for design phase. It looks pretty. You can generate basic documentation out of it.

Is it useful for the contractor? NO!

If you do not take the required construction information into consideration in early stages of the modeling, adding it in a later stage will take much more time than remodeling.

I have not seen a model coming from a consultant which can be used by the contractor so far.

In most of the cases, the contractor has to build his own BIM Model.

At the end of the day, the owner pays for this additional cost indirectly.

Is there a solution for this?

 Image from Andy Newson
Yes and No!

VICO developed a Model Progression Specification (MPS) system which allows the consultant to prepare the model in a way that the contractor can use it as well.

But even this requires, early involvement of the contractor in the project and also very good relations between the project parties.

What about Design-Build?

This is my favorite!

In the Middle East contractors get involved with both types of contracts. When a contractor decides to implement BIM into their organization and ask our advise for the pilot project, we always recommend to start with a Design-Build project.

Why?

 Image from Stuart Miles
The earliest you start with BIM, the more benefits you get from BIM.

If the project is Design-Build, you have the power to start BIM from the very beginning of the project.

Not only this, but also you can start BIM the way you want. Your BIM team will take your construction needs into consideration at an early stage and implement MPS properly.

Ohh! I can hear you saying what about IPD? Well, the industry is still experimenting with it. Unfortunately in Middle East I have not seen any examples of projects delivered with IPD yet.

I believe once the BIM expertise of the construction industry in the Middle East matures, IPD will be the preferred contract type as well.

 Image from Idea go

Wow! This became a very long and serious post. I hope you have not get bored while reading.

If you did, let me share something very interesting with you.

I was looking at the Stats page of the blog this morning and found very interesting "Search Keywords":)

Some people searched for the below keywords and ended up in our blog:)))
  • pest control 4 construction
  • united arab emirates crazy pictures
 Well, I do not want to comment further:)))

Enjoy your week!

Diyane Koseoglu
www.bimes.com




17 comments:

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