Quick Building Enclosures
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McHugh Construction wanted to test out DESTINI Profiler before overhauling their preconstruction process. One of the firm’s Estimators, Patrick Brown, put the software to the test with an aggressive tower project. Using several floor plans imported into DESTINI Profiler, the building was traced-out. It was then raised up on a floor by floor basis that required a large amount of importing. Features were added to create balconies which were copied and pasted. The exterior of the building was then clad to get an overall square footage of quantities and assemblies. Rooms were also created for the interior breakdown.
This aggressive approach created several lessons-learned. “First, do not take on such a large project the first time,” said Patrick. “Figure your consistent dimensions for the tower and monitor them to maintain consistency going up the building. Also, when tracing the existing mass, maintain the co-plainer lines as this affects your cladding and breaks up the building making for a less attractive presentation.”
After getting advice from Beck Technology, Patrick was given the suggestion of breaking large projects into multiple buildings. For McHugh Construction’s second DESTINI Profiler project Patrick worked on a 77-story building. It was the same aggressive tower as mentioned above but with a revised design. This time there was less interest in having the complete budget. Instead, Patrick focused on coming up with an enclosure budget with quantities and pricing and providing a nice model to submit to the owner. The quantities that were to be extracted were window walls, balcony insets, and slabbage covers. There were two types of slab covers that were achieved so these were broken out. Guard rails were added at the balconies and the roof terraces. Louvres were incorporated at the mechanical floors. Vertical columns were wrapped in metal panels as well as some beams at the terraces and the roof systems were captured as well. Once they were able to get the quantities of the cladding, an estimate was generated and the summary of quantity pricing was obtained. Patrick said, “We were able to share this information with subcontractors and cross-reference to make sure the overall numbers matched.”
Creating the massing was done differently than the original model for efficiency. Taking the overall footprint of the building, determining what the typical dimensions of the column enclosures were as well as the column bay openings. The building was then traced-out and the massing was raised up to 830 feet, the building’s highest point. From there, the building was divided into segments. Each segment was pushed down to the indicated elevation. DESTINI Profiler showed the various roofs and levels. Next, cladding materials were created specific to this project so that generated reports containing the information needed.
To clad the building, the elevation drawings provided in the schematic set were used to figure the heights and the patterns of the window wall system. Grid lines were created that allowed verification of heights of typical and non-typical floors. The building was put into Google Earth for the owner to see their building in that space and to give an understanding of how this building would be impacting surrounding buildings. The owner had a positive response to this view.
McHugh Construction’s third model was a non-typical tower. DESTINI Profiler was used to obtain overall quantities of the current wall system to compare to the two dimensional take-off. The first step was to determine the dimensions of the typical frustums. Afterwards, shapes were created using features. These were copied and pasted up the building to minimize redrawing of shapes. The features were modified to create the building’s recesses at the balconies. Once created, the features were converted into massings. Once converted to a massing, the building was cladded with various materials specific to this project, and then the items were priced for the budget. The idea was to gain an understanding of the overall systems and to then cross-reference with subcontractors as well as the two-dimensional take-off.
Moving forward, DESTINI Profiler will be used on smaller 30-story projects, start-to-finish schematic design, and not just concentrating on enclosures. “We want to create a database using estimates we have on-hand,” said Patrick. “It is fairly simple to add materials to the database.”
“It is important to understand that you have to use DESTINI Profiler in order to gain an understanding of it and to develop year-to-year massing skills and understanding how to price some of the quantities being pulled from the massing,” said Patrick. “Overall, DESTINI Profiler is a very powerful tool. You can pick and choose the projects on which DESTINI Profiler will be used.”
Watch Patrick tell his story in our recorded webinar.