Room Quantities.
When it come right down to it, what are the fundamental things you want to know about a room space if you are going to look after it for its life?
The questions you would ask, what am I to maintain or replace? So what is in the room, the things, and also the container itself.
Generally, depending on its function, the things in the room can vary greatly. A basic hallway, walls, ceilings, floor, doors, maybe a windows, and lights and light switch, minimum. Bathrooms, more elements and services. An emergency ward in a hospital, more complex still.
The initial fundamentals are surfaces and finishes and their quantities. Wall linings and finish, floor structure and finish, ceiling structure and finish. Then openings, doors, windows, basic openings, what are they made of and what do we need to know about them to maintain them?
So how to quantify a room?
For floor area, ceiling area & perimeter & volume, place a Room and these things come through automatically.
If you have split finishes for floor, eg part vinyl, part carpet, you can always divide room using a room separator line and calling it Room A & Room B, thereby differentiating between the 2 floor finishes spaces.
But what about walls. Walls straddle rooms, so are not associated with the spaces/Rooms either side.
This is a bit of a pain if you want to do a wall take-off and know where the walls are. There is also the issue of openings in the walls that need to be subtracted.
Roombook
The "roombook" tool was suggested. Roombook pours heaps of shared parameters into the model and exports the data into an Excel File with several tabs. It schedules everything in rooms. A nifty programme and very smart, but being able to extract the data from the Excel sheets in an automated method is not viable, but it showed that the principle worked, that wall areas could be extracted from model.
Room Finisher & Developed programme
The first crack we had at this was to get Grant Taylor from Caduceus involved.
He suggested creating wall linings in the rooms, and then associating the wall linings with the Room.
This was done by using the
Tuesday 25 August 2015
Bim to Asset Management
Hi, my name is Max and I am an architect working for Wellington City Council at present looking at taking information from bim models to asset management systems.
The process started very simply and evolved over time through trial and lots of errors.
The idea behind the blog is to leave breadcrumbs for others following on the path of using bim models not just for construction but for whole of life of the asset.
The initial start on the journey was looking at using autocrat and attribute blocks to send data for water, sewer and storm water pipes to an asset management system. The method is a 2d approach. On discussion of moving across to buildings, most designers are working in 3d so the idea of taking 3d information, collapsing it to 2d and filling out attribute blocks with data seemed a backward step.
We looked at using Autodesk.com Revit as the bim modelling tool and the database that is in use for asset management in WCc at present is SPM. This has a tiered hierarchy for its information.
There were two initial projects, a large 10 story refurbished social housing development that started in 2008 and was modelled in Revit architecturally, services were done in autocad. This project was nearing completion and it was felt that it would make a good pilot project. The second project was a stand alone 3 bedroom house, one of 5. Both models were developed to about LOD 300. The large building was also imbued with a bim - centric developed "B" special that was based on a 2d cad specification from Australia.
The smaller model was used to try and define the SPM database hierarchy and map directly to it on a one to one basis.
SPM database and data capture.
One of the services that SPM offer is an on- side survey of properties by surveyors and manual measurements of areas of spaces and recording of components within their hierarchy of definitions. They use imams to tabulate the data in a specific format and also photograph each space, minimum of 6 photos of, the four walls, ceiling and floor.
As well as quantifying the asset, they also gave the quality using a condition scale of 1 to 5. The higher the number, the more worn out the item is.
So, given the quantity of an item, an age for a specific asset, and it's present condition, they have built in algorithms for deducing the rest of the life of the asset. So they can also place a cost against an item, New, and have a depreciation curve and a replacement cost.
Using bim to populate the database, take one. Revit schedules.
The process started very simply and evolved over time through trial and lots of errors.
The idea behind the blog is to leave breadcrumbs for others following on the path of using bim models not just for construction but for whole of life of the asset.
The initial start on the journey was looking at using autocrat and attribute blocks to send data for water, sewer and storm water pipes to an asset management system. The method is a 2d approach. On discussion of moving across to buildings, most designers are working in 3d so the idea of taking 3d information, collapsing it to 2d and filling out attribute blocks with data seemed a backward step.
We looked at using Autodesk.com Revit as the bim modelling tool and the database that is in use for asset management in WCc at present is SPM. This has a tiered hierarchy for its information.
There were two initial projects, a large 10 story refurbished social housing development that started in 2008 and was modelled in Revit architecturally, services were done in autocad. This project was nearing completion and it was felt that it would make a good pilot project. The second project was a stand alone 3 bedroom house, one of 5. Both models were developed to about LOD 300. The large building was also imbued with a bim - centric developed "B" special that was based on a 2d cad specification from Australia.
The smaller model was used to try and define the SPM database hierarchy and map directly to it on a one to one basis.
SPM database and data capture.
One of the services that SPM offer is an on- side survey of properties by surveyors and manual measurements of areas of spaces and recording of components within their hierarchy of definitions. They use imams to tabulate the data in a specific format and also photograph each space, minimum of 6 photos of, the four walls, ceiling and floor.
As well as quantifying the asset, they also gave the quality using a condition scale of 1 to 5. The higher the number, the more worn out the item is.
So, given the quantity of an item, an age for a specific asset, and it's present condition, they have built in algorithms for deducing the rest of the life of the asset. So they can also place a cost against an item, New, and have a depreciation curve and a replacement cost.
Using bim to populate the database, take one. Revit schedules.
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