BIM for Baker

BIM for BakerWHAT ARE THE BENEFITS OF BIM

There are many benefits and solutions

BIM is used for visualizations, quantity takeoffs, and design validation. These can be done without the need for BIM, but BIM allows it to be done with very little error, more precession, and more importantly much much quicker.

Secondly, BIM is great for Virtual Rehearsals. Where we build the job on the computer first, logistics included, and make sure the schedule makes sense.

What does BIM do currently?•PreConstruction• Quantity Takeoffs• Visualizations• Schedule Validation• Media – 4D (3D Model + Schedule) videos• Logistics Plans

Quantity TakeoffComplete takeoff for Marlins Ballpark was achieved in 17 minutes.

All-Aboard Florida, Jade Signature, 1000 Museum, and SkyRise Miami just to name a few.

Due to limited resources we only provide quantities where traditional takeoff is inadequate for complex designs.

VisualizationsWhether communicating to our own internal team, or to a potential client, we can convey that we have a plan, and that it works.

VisualizationsSometimes, visualization helps us realize just how much risk there is for a project, and allows us to adjust our bid accordingly.

Logistics planningFiguring out where to put concrete trucks is just one of the many challenges in our business.

Logistics PlanningCranes, temporary structures, safety equipment, from systems, dirt, heavy equipment, and access are all issues that are easier to resolve in 3D than they are in someone's head.

Logistics PlanningNot only figuring out where to put cranes, but displaying that information in context with other useful information like pours or buildings, and quantities, on paper.

MediaSometimes pretty pictures that don’t add much construction value still provide value.

MediaNeed a cover page for a proposal?

Schedule ValidationOur bread and butter. Shows we know the project.

Schedule ValidationMaking sure the schedule we promise to our clients actually makes sense.

What does BIM do currently?•Operations• Line Drawings• Backgrounds for Engineering• Visualizations• Logistics Planning• Spatial Coordination• Schedule Validation• Design Validation• Quantity Takeoff

Design ValidationThis is where BIM provides the most value. Design Validation reduces Baker’s exposure by making sure that the design is complete when our line and grade gets there.

There are just some design issues that can’t be realized until they are modeled in BIM or laid out in the field.

How much could this have cost Baker if it wasn’t discovered until we started laying it out?

• Would an official RFI be asked?

• Would a change order ensue?

• How much carpenter time would have been lost?

• How much line and grade time would be lost?

• Does rebar need to be changed?

Line DrawingsThese are provided to jobs for one or more reasons:

• Required by contract for submittal

• Design Validation to get RFIs out ahead of the construction team

• Needs to be done for Line & Grade, it’s a byproduct of model creation, why do the same work twice?

Engineering SupportEngineering needs a reliable, accurate, and up-to-date backgrounds to work with. Especially when it comes to cross sections of buildings.

These backgrounds are merely a bi-product of model creation. Virtually no extra time is needed to bring these to the table.

Logistics & Spatial CoordinationFiguring out what cranes to use and where to place them. For the Miami Science Museum we literally only had 5ft to spare until using a Truck pump would not be feasible. It was so tight, we had to layout precisely where the pumps would be placed, and painted the ground where the outriggers had to sit.

Pour PlanningWe didn’t realize a lot of things about the Gulf Stream Tanks until we modeled it. We found the slopes via the BIM Model. Would have been impossible otherwise.

Baker determined that the Top form, which needed to be used for slopes of 33° or more, did not cover enough of the tank.

Pour Planning & Quantity TakeoffAnother thing that would have been almost impossible to do without modeling was figuring out how much concrete was going into the tank.

In the next video, you’ll see a study of how gravity works with this shape. We found that the real challenge was at the ring beam, which also happened to be where the Architectural finish was.

Schedules1. 90% of construction schedules that weren’t validated using BIM have 5 or more logical

errors.

2. This is fine because 90% of construction schedules are so long and complicated that no one bothers to look at them.

3. BIM can solve that with 4D (3D + time).

Scheduling (4D)

On Surf Club, we’ve combined the schedule with the BIM Model. The blue represents shoring, although one day we hope to replace this with actual shoring tables and formwork.

For now, this schedule is just used by the Project Manager, though the project managers tend to be intimidated by the software, and they don’t use it much if at all. This is due to several reasons, we believe include:

• Intimidation by seemingly complex software

• Hardware limitations

• Input limitations; Software (license costs $6,500)

• No direction from management

By failing to prepare, you are preparing to fail.

– Benjamin Franklin

Where we are goingEngineering is the logical next step. However, there are several hurdles to tackle before we can do so. Things like catalog creation and training/hiring capable staff are imperative, costly, and take time. The huge benefit here would be total resource management, our logistics plan would be more realistic, and we could have a more complete “virtual rehearsal”.

Line & Grade

Not yet implemented, providing points for robotic total station we can potentially reduce Line & Grade Labor while simultaneously providing greater accuracy, speed, and reliability.

BEAM already owns the total stations needed. We just need to train and implement to get it going.

Learn more about Autodesk® Point Layout here

Lean ConstructionScheduling (4D)

With Synchro, its very easy to practice Lean Construction Principles® on all our jobsites.

1. Two-Week & Six-Week Look Aheads can easily be communicated even with tradesman who cannot read construction drawings.

2. The practice of linking our BIM with our Construction schedule makes it necessary to include a “backlog of ready work”.

3. Seeing upcoming work in context of surrounding work helps identify constraints, detail methods for execution, and identifying pre-requisites.

4. Using Project Management software the way it was meant allows for matching work flow & capacity.

Contract Design Submittals

Materials Prerequisite Work Space

Equipment LaborPermits,

Inspections, Approvals, etc.

4D BIM helps us quickly define constraints as identified by the Lean Construction Institute®

5D BIM + Scheduling + MoneyThis is where the most benefit can be had.

Currently, we are working on getting the estimate for Biscayne Beach into our schedule, this gives us our baseline cost. We know how many man hours are required for each activity, and tracking that, as well as heavy equipment rentals, rebar materials/installation etc., can allow us to see how our project is doing in all aspects.

However, this is something we are exploring, and it will most likely require more staff to implement.