Realising complex shapes with Revit Architecture

Architectural professional, Jurie van Dyk, believes advancements in design technology have created a new role for the architect as artist, and architecture as art.

We have been inhibited for too long. Firstly, here in South Africa we’ve been trapped in a timewarp in which art, music and architecture have become copies of copies. Furthermore, innovation has been cramped by technical constraints. As soon as there are variables in the design, documenting it for execution becomes very difficult and time-consuming. Andthe risk is just too great.”

Van Dyk, who trained in an environment in which computers were perceived as the downfall of innovation in architecture, says structures should be a balance between the innovation of new forms and mathematical and scientific efficiency.

“I believe using today’s advanced 3D databasedriven programs, like Revit Architecture, results in complex forms that are well thought through and, ultimately, far richer.”

With House Breda, he wanted to create a house that flowed with the natural contours of the site.

“First of all, I gave the house gently curving S-shaped walls. And then to achieve the elegant lines I wanted, the roof had to mirror the shape of the house. Furthermore, I wanted the roof to vary from 35 degrees at the widest point to 50 degrees at the narrowest. The eaves also had to have fluid lines, so they had to slope up and down, echoing the curves of the walls.”

“It was an idea I’d had for a long time, but had been just too difficult to draw and document. With Revit, however, my idea became reality.”

“I sculpted the roof using the ‘blend’ command and after I’d succeeded in making the idea physically viable, I continued with the technical documentation. Because it’s so easy to create sections, I cut as many sections as required which allowed me to determine the position, length and angle of every roof pole in the building,” explains Van Dyk.

“Revit is simplifying complex designs with its approach that makes technical documentation possible.”

Supplementing standard construction documentation with sequenced Revit-created 3D drawings is also enabling Van Dyk to improve communication with construction teams, mitigating skills shortages experienced on site.

“Until recently, architectural drawings have been produced in a specific order – plans, sections, elevations and, finally, detail drawings. It’s never been challenged. It’s just the way things have been done,” says Van Dyk.

This, however, isn’t the sequence in which a project is constructed. With labour costs the biggest expense in a building project, failure to construct a project in the correct order results in costly reworks and unnecessary time delays.

With the extreme pressures on the building industry Van Dyk says when contractors get busy they often leave foremen on site without supervision. As many of these foremen have difficulty reading conventional plans, the potential for error is huge. “I can’t tell you how many times I’ve gone out to a project to find that although the slab has been cast, the storm water drain is still lying on site.”

Using Revit, Van Dyk creates sequenced drawings with perspective visualisations to communicate the correct construction sequence to a builder.

The drawings start with a site clearing excavating and trench digging plan. It’s in perspective with dimensions showing the builder how the trenches should be dug. It’s followed by a foundation and then a riser wall plan. Each drawing is clearly annotated with instructions and reminders.

“When a foreman says he’s on page 26 of my drawings I know that he’s busy fixing the branding to the underside of the trusses and can rest assured that the framework for the geyser, and the actual geyser itself, are already in place as per the annotated drawing on page 24.”

Rich, Intricate Designs

Archilution

With a practice located in the exclusive Eastern Cape holiday village of St Francis Bay,

architectural professional, Jurie van Dyk, is physically isolated from most of his clients.

Only 20% are resident in St Francis Bay, and more than half of his out-of-town clients

have permanent homes in Europe and the United States. Modern technology, however,

enables him to focus on the design of homes in St Francis Bay, while staying in contact

with his clients – wherever they may be. Demonstrating his reliance on and interest in

technology, Jurie – along with a handful of progressive South African architects – recently

participated in a pilot programme to test the new building design and documentation

software, Autodesk Revit.

Rich, Intricate Designs

Despite his secluded location, Jurie is kept busy creating gracious white walled, thatch holiday homes on the banks of the marina around which the picturesque coastal village of St Francis Bay has been developed. His designs are a far cry from the ‘box’ type homes that are often created for urban residential complexes. They’re rich, intricate designs,” explains Jurie “and their complexity means that they can be quite difficult to document using a conventional computer-aided design package, which focuses on automating drawing tasks, rather than on design.” He tested Autodesk Revit on two residential projects over a period of two months. The first one had been started on AutoCAD and was imported into Autodesk Revit, which was used to fine-tune the design. The second project – a stylish thatch holiday home on the

St Francis Bay marina – was created solely using Autodesk Revit. The architect’s immediate reaction was the ease with which the new software interacts

with AutoCAD. “Autodesk Revit has powerful and very precise import

and export capabilities.” Enriching The Quality of Designs Aged 27, Jurie is a relatively young newcomer to an area in which there are several established architects. This, together with the discriminating tastes of his clients, compels Jurie to continually look for new techniques that will help him enrich the quality of his work. “Some of my clients have commissioned leading

architects in Europe,” says Jurie “and have exceptionally high standards, particularly when it comes to quality and service. I have to have the tools that will help me meet their demands.”

Autodesk Revit is the solution he’s been looking for – Jurie is elated with the impact it is having on his designs and his communication with clients.

Leading Architects

Autodesk Revit offers advanced capabilities. Replacing the ‘dumb’ lines, arcs, and circles of previous computer-aided design (CAD) software, is an inherent intelligence that is embedded in building models. Software concurrently creates multiple views – 2D, 3D, plans, sections, and elevations, even schedules – of the building model, eliminating the need to re-create the multiple views of the building. Revit is a shortening of the words ‘revise instantly,’ which is what happens when changes are made to a building model. Modificationsto a building model are made in real time and reflected immediately all views – a change anywhere is a change everywhere. Jurie says the ease of use of the software slashes about a third off his design time, leaving him free to concentrate on the quality of his designs. “Financial and time constraints prevent architects specialising in residential projects from creating physical models,” says Jurie. “With Autodesk Revit I can quickly create an electronic model, which allows me to fully explore the design options.” The St Francis Bay architectural professional has developed his own design development method where he notes down initial design ideas directly on the computer screen. Using a multi-media technique, he prints out the initial design and then sketches in the next ‘layer’ of ideas on the printed image. After recording these additional ideas on the computer, he prints out the more detailed design. And so he explores and builds up a design. “Autodesk Revit is an amazing design tool that allows me to create a building model on the screen, with a mouse as a pencil. After using it on just two projects, I can see how using the software will help me enrich the quality of my designs.”

A Picture Is Worth A Thousand Words

According to Jurie, the 3D capability of the software also helps him develop his design ideas. “Easy access to 3D capability means that its use will no longer be restricted to the creation of conceptual presentations. I’ve started using the 3D capability of Autodesk Revit to help me develop my concepts,” explains Jurie. “For example, the need to increase the head height of a staircase is typically very time consuming, that if it’s even detected during development. It’s often only picked up on site.”

Recently, the 3D capability of Autodesk Revit helped Jurie identify just such a need for an increased head height. Not only did the early detection impact on the functionality of the design, but it also helped reduce onsite reworks. One of the biggest benefits in regard to Jurie’s isolated working environment is the ease with which he can create multiple views of a building for emailing to his clients. The images, particularly the level of detail, communicate the look and feel of a design to his clients. In addition, the ease with which he can create multiple views of both the interior and exterior of a building gives them an even better idea of the design. He can rotate the exterior of a building and also look round the interior of a room. Any one of the views can be quickly captured in jpg format (usually less than 100 Kb), for emailing to a client. “I’m seldom able to discuss a design face to-face with a client, so I rely on my images to do the job for me. The quality of the Autodesk Revit images, their level of detail, and the volume of images which I can generate quickly, are perfect,” says Jurie