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Virtual Singapore: A Platform to Solve Emerging and Complex Challenges

Thursday, July 30th, 2015

Virtual Singapore screenshot2

The National Research Foundation (NRF), Prime Minister’s Office, Singapore, and Dassault Systèmes have announced a cooperation to develop Virtual Singapore, a realistic and integrated 3D model with semantics and attributes in the virtual space.

Advanced information and modeling technology will allow Virtual Singapore to be infused with static and dynamic city data and information.

Click to TweetClick to Tweet: #VirtualSingapore will allow citizens, business, government & researchers to model city data

Virtual Singapore is a collaborative platform with a rich data environment and visualization techniques that will be used by Singapore’s citizens, businesses, government and research community to develop tools and services that address the emerging and complex challenges Singapore faces.


Ice World Project Complex Façade Design Made Easier with BIM

Thursday, July 23rd, 2015

China’s Ice World is poised to be the biggest indoor ice- and water-themed park in the world, putting entertainment, sightseeing, and hospitality all in one place.

As part of the Changsha Great King Mountain Tourist Resort, Ice World—along with a five-star hotel—is a modern, integrated complex located at the western side of an ancient mine.

Ice World 1

When completed in 2017, Great King Mountain Ice World will be the largest winter wonderland theme park in the world. Construction on the project, which is located in Changsha, provincial capital of Hunan province in central China, began in 2013.

Great King Mountain Ice World Tourist Resort is nestled at the south-western side of Changsha province, 8.5 kilometers from the city center and supported by a convenient transportation network. The resort faces the famous Xiang River and Great King Mountain to the east and west, respectively, offering broad geographical views.

Great King Mountain Ice World has an astonishing area of 1.5 hectares and the gross area is 180,000 square meters.

Situated at the top of an ancient mine pit, Ice World blends with the breathtaking scenery around it.

The sculpture-like, shell-shaped façade rests across the tip of the deep mine, spanning 170m and only revealing the east and south sides of the pit. There is a hanging garden between the deepest part of the pit and the cover of Ice World, creating an island space for the ultimate show of natural and man-made beauty.

With the lake water and the cliff pathway in view, visitors see the pieces of this natural heritage as one spectacular experience, with unique open space located between the architecture and the scenery. The water element in the pit inspired the creation of a water-spiral rooftop.

Another impressive architectural feature is the glass pyramids in the centre, designed to reflect sunlight on both the surface of the island and the surface of the water.

Complex Project, Large Team

Shanghai Xian Dai Architectural Design (Group) Co. Ltd., a service company that utilizes advanced technology, is one of the main design firms in this project. The company has more than 60 years of experience.

It wholly owns East China Architectural Design & Research Institute Co., Ltd. and its subsidiaries, East China Architectural Design & Research Institute (ECADI), Urban Design Institute of Xian Dai Group, Shanghai Architectural Design & Research Co., Ltd, Shanghai Xian Dai Architecture, Engineering & Consulting Co., Ltd., Wilson &Associates LLC, etc.

The design group itself has more than 10 professional institutes and employs 6,000 professionals, including 700 that are well-versed with Building Information Modeling (BIM). Xian Dai has employed Dassault Systèmes solutions in a number of projects already.

Ice World 2

The Ice World project involved more than 20 design teams and required a large amount of data and information to be shared.

“This project has been very, very challenging,” Mr. Kai Wang, Executive Manager and Technology Director, Digitization Technology Center, Shanghai Xian Dai Group, said at a Construction Playground talk at the 3D Experience Forum China 2015 held in Shanghai on June 4.

Mr. Kai Wang

Mr. Kai Wang, Shanghai Xian Dai Group

He spoke in detail about the various teams and complicated subsystems required. There was standing room only at the session, as Mr. Wang described how Dassault Systèmes’ CATIA was used in the design of the project.

The project involved a large number of different teams, including more than 20 design teams. There were also many complicated building, structural and electrical subsystems required. This meant a large amount of data and information had to be shared; the BIM model was 2.4G in size and had 33 different modules.

Click to TweetClick to Tweet: China’s complex Ice World project involved >20 design teams; here’s how it worked:

While the total investment for the project was RMB 2.9 billion (approximately US$467.2 million), the high level of complexity made keeping to the budget and controlling costs tough. The sheer scale and number of different parties involved made coordination and communication extraordinarily difficult.

“Because of the complexity, conventional software was inadequate,” Mr. Wang explained. Highly detailed designs were required right from the beginning. And the firm also had to minimize cost and expedite processes, reducing the time spent on each stage. “In the end some of the original targets proved to be too ambitious and we had to scale back and lower some of the targets,” he said.

The targets included reducing budget deviation by 30 percent and above, keeping budget accuracy to within a variation of 3 percent, reducing the time required for setting the budget by 50 percent, reducing drawings review time and work cycles by 50 percent, and attaining a two-star rating for Green Building Design.

Click to TweetClick to Tweet: Team on massive #IceWorld project in China reduced work cycles by 50% with #BIM

According to Mr. Wang, a platform that could facilitate more precise modeling and make coordination easier was required. The system also had to be efficient to enable better transmission of information.

They needed a platform that was mature but was also modular, with an open structure to cater to the different users: consultants, architects, the mechanical, electrical and plumbing (MEP), and structure and teams, as well as knowledge management (KM).

3d Experience Forum Ice World

Mr. Kai Wang, Executive Manager and Technology Director, Digitization Technology Center, Shanghai Xian Dai Group, sharing how Ice World project used BIM for sophisticated façade design at the 3D Experience Forum China 2015.

Strategic Advantages

With CATIA, reports, spreadsheets, drawing specifications, models and analyses are all linked and integrated, and made accessible through the collaborative environment.

The advantages of using the CATIA include its ease of use with a tablet or notebook computer, which means more portability and easier sharing and showing during project discussions. In addition, no additional installation was required on individual computer terminals before the system could be accessed.

Click to TweetClick to Tweet: Designers used #CATIA on the new Great King Mountain #IceWorld Tourist Resort in China

Mr. Wang cited superior computing and rendering speed as an advantage, while discussing its use from conceptualization through to design and data management. The system first looks in the cache for data and sends it to the CPU; if the information required is not in the cache, it will then be fetched from the RAM. With CATIA, 3D modeling, rendering, and exporting are made possible with CAD software.

Mr. Wang illustrated the use of CATIA from concept, design development, fabrication, and construction planning for the frozen 3D façade of the Ice World. The system is compatible with other software functions and generates precise information necessary for 3D modeling in a central knowledge management database.

Shanghai Xian Dai Group also generated and stored construction standards documents in the central database in the form of a BIM, eliminating the need to print out thick hard copies as it used to do. The standards can then be accessed and checked like an online glossary at any time.

With the number of professionals and teams involved, a database with consolidated information and diagrams that is open to consultation facilitated smooth communication and quick reference. The models and information are stored on collaborative environment so that data can also be used across different projects.

Information and data is categorized systematically which makes for greater ease in search and better access.

Parameters and data range can be set to make the design process easier. The system also has a 3D printing function for producing models. And real life behavior of the surface design – including the effect of light and views from different perspectives – are also accurately simulated.


Many problems were resolved or avoided with CATIA and the resulting cost saving was estimated at RMB 100 million (approximately US$ 16 million), according to Mr. Wang.

Click to TweetClick to Tweet: Problems avoided = estimated cost savings of US$16 million | #IceWorld #CATIA #AEC

Review times were cut by 38 percent and design time was successfully cut down to just two months. Precise and accurate construction plan were produced and the project also successfully met the criteria to qualify as a Green Building.

“I would say that the system’s efficiency is outstanding,” Wang stated.

Related Resources

Facade Design for Fabrication Industry Solution

White Paper: Technological Changes Brought by BIM to Façade Design

Announcing “Civil Design for Fabrication”

Thursday, July 16th, 2015

Civil engineering and infrastructure construction professionals can now engage in more collaborative, productive and accurate design of roads, bridges, tunnels, railways, highways, dams or other major infrastructure.

iStock_000017178591_Full (1)

Civil Design for Fabrication” was developed by Dassault Systèmes in partnership with the Chinese public engineering company Shanghai Municipal Engineering Design Institute (Group) Co. Ltd. (SMEDI) at the two companies’ joint research and development center in Shanghai.

By 2025, the global population will reach 8.1 billion, with rapid urbanization in China, India and Latin America, in particular.  In order to accommodate this surge, an estimated $9 trillion will be spent on building public infrastructure.


3DEXPERIENCE Speakers Reveal Accelerated Korea BIM Momentum

Thursday, May 21st, 2015


Global adoption of BIM is proceeding with great momentum, and within Asia many are rapidly adopting BIM practices. Korea is one country leading the way with BIM adoption, with dramatic growth year over year.

Dassault Systèmes recently made speeches at two events focused on driving adoption of BIM in Korea. Building on the strong interest in the region, the company delivered these two talks on BIM.

Digital Tools for Sustainable Cities

Ingeborg Rocker, Vice President, GEOVIA 3DEXPERIENCity | Globe, Dassault Systèmes, presented “3DEXPERIENCITY” at buildSMART Forum 2015 Seoul, Korea on April 16.

With a soaring global population, vast numbers of people face living in cities that are decades or centuries old, built for much smaller populations with very different needs.

This puts our environment at risk by wasting resources such as land, water, and energy, and makes cities harder to manage logistically.

A diverse range of disciplines are helping to solve these challenges, aided by a suite of digital tools. These tools allow scientists and city planners to see and explore the futures we are creating and their effects on their inhabitants and the planet as a whole.

Dassault Systèmes’ 3DEXPERIENCity | Geosphere project aims to create holistic, virtual models that enable urban planners to digitally study and test ideas. This will allow them to consider the impact urbanization has both within the invisible boundaries of their city.


Spotlight on 3-im: Bringing a World View of BIM to Italy

Thursday, May 14th, 2015


Edmondo Occhipinti founder and Director of 3-im

In some ways Edmondo Occhipinti, founder and director of BIM consultancy 3-im, is starting from the ground up —again.

Occhipinti spent more than eight years with Gehry Technologies, working from his role as a consultant to ultimately manager of the company’s European and South American divisions.

During that time, he grew from an individual with strong technical knowledge of 3D technologies to a manager who taught others how to apply these tools.

Now, in his new role with 3-im, Occhipinti is teaching a whole new group of players how advanced modeling can solve some of the most complex challenges facing the AEC industry.

Tweet: @treiemme is teaching players how advanced modeling can solve the complex challenges facing the #AEC industry @3DSAEC to tweet: “@treiemme is teaching players how advanced modeling can solve the complex challenges facing the #AEC industry”


High Demand for New Solutions at BIM World 2015 in Paris

Thursday, April 16th, 2015


BIM World Photo resized

Tweet: High Demand for New Solutions at #BIMWorld 2015 in #Paris @bim_world @AEC_Cafe @Dassault3DS #AEC #BIM to tweet this article


In Paris, on March 25-26, BIM World 2015 showcased a global vision of the life cycle, equipment, buildings, urban infrastructure, users, and services. This year’s theme was “Redesigning the Innovation Code.”

The sold-out event attracted broad attendance from architects, designers and contractors, to those from government, other industries, and the general public. Following the 2014 European Directive on the use of digital processes in building information modeling (BIM), there was intense interest at BIM World 2015 in the new technologies being shown and the solutions available.


Spotlight on buildingSMART: Driving an open approach to design and construction evolution

Thursday, April 9th, 2015


When Richard Petrie joined buildingSMART as chief executive officer in 2013, he took on the goal of driving the standards-writing organization’s growth — in order to drive change across the entire architecture, engineering and construction industry.

Having worked in construction as both contractor and client, Petrie has seen firsthand the frustrations of a slow-to-evolve architecture, engineering and construction industry. From within buildingSMART — a not-for-profit organization that has been working to standardize the language and processes of BIM users since 1995 — Petrie has observed an increasing emphasis from several European governments on improving construction efficiency.


Buzz About BIM: MADE Expo Attendees Ask How New Tech Can Help Them

Thursday, March 26th, 2015


As the MADE Expo opened at the Rho fairgrounds in Milan on March 18, BIM was already the buzzword of the event.

The biannual exhibition of MADE Expo attracted more than 200,000 professionals from all parts of the Architecture, Engineering and Construction industry, from architects to manufacturers to contractors — making it no wonder that attendees had a focus on BIM, itself a virtual meeting place for all design and construction parties.

“Everyone is talking about BIM,” found Edmondo Occhipinti, director of 3-im Virtual Projects, a 3D design consultancy and Dassault Systèmes business partner. “The public has a rising interest in this technology and the way it works, and they want to understand more: what does it do for us? How does it work?”


BIM in Façade Design: Real World Examples

Thursday, February 19th, 2015

The following post is an excerpt from Technological Changes Brought by BIM to Façade Design.

Phoenix International Media Center

Phoenix International Media Center, located at the southwest corner of Beijing Chaoyang Park, with gross floor area of 65,000 square meters and building height of 55 meters, was designed by Beijing Institute of Architectural Design.

The overall design logic is to wrap the main, independently-maintainable space with an ecologically-functional shell, rendering a building-in-building form. There is some interesting shared and public space in between, so as to meet the purpose of public involvement and experience and environmental protection.

In addition to media office and studio production facilities, there is also lots of interactive experience space open to the public, so as to reflect the unique open business concept of Phoenix Media.


BIM Brings Changes to Façade Design

Thursday, February 5th, 2015


The following post is an excerpt from Technological Changes Brought by BIM to Façade Design.

IT and Façade Design

To meet the requirements for energy-efficient, green, and sustainable buildings, and respond to the increasingly serious shortage of contractors and necessary increase of cost, industrialization of façade design engineering is one of the development trends of the architectural envelope industry. Industrialization of façade design engineering must be promoted by the industry and, in turn, its improvement can boost promotion.

CAD and VR

Since the birth of CAD in the last century, engineers have abandoned manual drawing and turned to electronic drawing. This has changed traditional design methods and brought the first revolution in the façade design engineering field.

To manage the CAD data, information technology also underwent a three-stage evolution from CAD file management, to CAD database management, to product data management (PDM). PDM is an integrated working mode that can provide a façade design collaboration environment for sharing, so that designers can work on the same database, reducing unnecessary condition transfer and confirmation and fully sharing information resources.

The rapid development of three-dimensional modeling and virtual reality technology helps improve communication efficiency among the multiple parties involved in façade design.

The visual expression of a three-dimensional model can help architects and façade designers freely exchange ideas and deliberate on the designed volume, shape, façade, and exterior space throughout the design, but the aforesaid façade surface model cannot hold more design information for construction and installation.

In addition to the physical dimensions of the architectural envelope and required materials, design information also includes wind pressure resistant strength, seismic resistance, air tightness, water tightness, transformation, construction technology, heat transfer coefficient, etc. Indetermination of such information will lead to poor efficiency in subsequent work, such as building estimate and budget, fabrication, field installation, etc.


Industry demands promote the continuous integration of three-dimensional geometry-based modeling technology, virtual reality technology, and BIM technology, and development toward integrated application.

Virtual design and construction (VDC) is another concept becoming popular in the engineering construction industry. It requires, through the multidisciplinary parametric models provided by design, construction, operation, and maintenance teams in project construction, integration of building facility information, the construction process, and the management organization to ensure the achievement of general management objectives for the project.

If the VDC management concept can be implemented, we will be able to capture and reuse data from conceptual design to prefabrication and even in downstream processes, and apply the data to the entire process from concept design, to modular construction, to component prefabrication.

Then, we will have the chance for “building industrialization.”

BIM is one of the core technologies of implementing VDC. BIM technology is highly correlated with industrialization of façade design engineering logically.

Based on BIM, the carrier of building information, not only the visual design, multidisciplinary integration correction, panel optimization analysis, and quantity calculation for the architectural envelope, can be possible.

A breakthrough can be made, specifically, the mode of documentation in design delivery in the traditional building industry serves no one well. Instead, the panel fabrication drawing can be directly generated and the component fabrication data can be directly extracted from the design model, which makes possible the paperless design and plant fabrication of the curtain wall unit.

BIM technology has become the inevitable choice for industrialized development of the architectural envelope industry.

Tweet: #BIM tech has become the inevitable choice for #architectural envelope industry. #AEC @3DSAEC @Dassault3DS to tweet:”#BIM tech has become the
inevitable choice for #architectural envelope industry.”

BIM-based façade design features Parametric design

BIM parametric design changes all the elements of a façade fabrication to a functional variable, and then, by changing the function, or to say, by changing the algorithm, drives the façade panel shape to change, thus creating different building design schemes.

As an art of building, façade design fundamentally has an anti-logic basis. As aesthetic theory goes, there is no debate for taste. Sticking to conventional thoughts will never lead to the palace of art.

However, parametric design is not contradictory to traditional building design. It is oriented to the future, and has many unimaginable forms. It is a tool that can inspire designers.

Tweet: #Parametric design has many unimaginable forms; it's a tool that can inspire #designers. #AEC @3DSAEC @Dassault3DS to tweet: “#Parametric design has many
unimaginable forms; it’s a tool that can inspire #designers.”

In BIM parametric design, all real attributes of façade fabrication components are given a parametric simulation and calculation, as well as related data statistics. In BIM parametric design, a façade component is not only a virtual geometric component, but also has other geometric attributes, such as component material, thermal performance, cost, as well as purchase information, weight, installation number, etc.

The significance of BIM parametric design is that we can, according to different design parameters, quickly conduct calculations and statistical analyses on modeling, layout, energy conservation, evacuation, etc. and then give priority to the most appropriate scheme.

This is where BIM parametric design differs from ordinary parametric design that is only for the realization of geometric modeling.

SKY SOHU Project BIM models

SKY SOHU Project BIM models

It is noteworthy that the concept of parameterization is different from the concept of parametric design.

Parameterization refers to the modeling capability of BIM software, which is an important guarantee for realization of parametric design. BIM software applicable to façade design must, first of all, provide “accurate” BIM capability to ensure that the modeling accuracy of small BIM components, such as round hole, bent piece, etc., is within the allowable plant fabrication error range.

The American Institute of Architects (AIA) uses level of detail (LOD) to define the accuracy of building components in BIM. According to LOD, BIM evolves from an approximate model to an accurate completed model through the progress of project, and the model accuracy is from the rough to the subtle:

  • LOD100. Conceptual.
  • LOD 200. Approximate Geometry (scheme and enlarged preliminary).
  • LOD 300. Precise Geometry (construction drawing and detailed construction drawing).
  • LOD400. Fabrication.
  • LOD 500. As-built.

For an ordinary building design, when the model accuracy is within LOD100 to LOD300, the design delivery can be completed; but for a façade design, to ensure the design delivery model can be applied in subsequent plant fabrication, the modeling capability of the BIM software must reach LOD400.

Knowledge-based visual design

A BIM-based three-dimensional virtual design environment helps quickly transfer design information and simulated information to project partners, so as to improve their communication efficiency, make possible WYSIWYG (what you see is what you get), and reduce economic losses caused by redesign. Visualization can be used for design clarification of detail structure joints, such as the façade panel edge, corner, hole, junction, and beam bottom flashing and trim. Besides, visual display can help quickly discover any conflicts among disciplines and improve design quality.

Curtain Wall Joints of CABR Research Building (Source: CABRTECH BIM Team)

Curtain Wall Joints of CABR Research Building (Source: CABRTECH BIM Team)

BIM visualization is automatically generated via the information for entity components. We can have the multi-view sectional drawings and axonometric drawings of a curtain wall model automatically generated to transfer information.

There are correlative and feedback relations among the components in such a “tridimensional wall.”

When a façade design engineer modifies a component, all the views in relation to the component will be automatically updated, saving us the trouble of modifying the plan, elevation, and section respectively.

The “correlative” visual feature is conducive to improving communication efficiency and also improving design engineer work efficiency, solving the long-standing problem of discrepancies among, omissions in, and incompletion of drawings.

“Top-down” design

From concept design, to modeling design detailing, to plant fabrication, to the final installation, the curtain wall is involved in many steps and covers both building and mechanical fabrication fields. In most cases, data cannot be smoothly connected, and data chain breaking may occur.

Based on data chain inheritability underlined by detailed BIM design, and with BIM as carrier, the “top-down” design idea can help accurately get the upstream curved surface modeling data and also accurately coordinate fabrication.

For “top-down” BIM design, it is required to first construct a “top basic skeleton” of the design, and then make copies, modifications, and detailing based on this “top basic skeleton” in the subsequent design process, finally completing the detailed design.

For example, the entire façade design engineering of a project is the highest-level “top basic skeleton”. The tower, floor and other parts can be broken down into several levels of “top basic skeleton” and each can show the geometric shape and spatial position of the façade panels in the part, and reflect the geometric constraint relation with other “top basic skeletons.”

Thus, the “top basic skeleton” is the core of the detailed “top-down” façade design development, and also the bridge and link for the interrelation among façade panel components.

The parametric modeling capability of BIM software is the basis for the smooth development of detailed “top-down” design.

In BIM-based parametric modelling, design can be automatically modified by parameter driving. There is an obvious corresponding relation and global correlation between the parameters and the controlled sizes of the model, so that the transfer of model data changes from and to different levels enjoys uniqueness and instantaneity. The “top-down” BIM design has two main characteristics:

The geometric modeling of the façade fabrications can be easily transformed to building components with real attributes. When we change parameters to make geometric shape change, building components change accordingly, which relates visual shape to real façade fabrication components, so that the visual model is transformed to a real “information model”. In the detailed design of a metal curtain wall, for instance, BIM-base technology can help, according to architect’s requirements, generate a large complex curved surface, easily divide the curved surface, and cut the shape into small, simple-technology, material-saving curved panels suitable for mass production.

Then, via sheet metal unfolding, turn them into drawings of plan view size, and make perform cutting and blanking with fewer errors or error free. Furthermore, using the building components with real attributes, an enterprise can gradually enrich and complete its parametric curtain wall component library, conducive to accumulation and reuse of enterprise knowledge.

After the shapes and positions of “top basic skeleton” are satisfactory, optimizing special-shaped curved panels can be done to meet the requirements of complex surfaces for fabrication, transportation, installation, and cost.

The façade designer modifies the shapes of curved panels by parameter driving, and, within the allowable visual error range, replaces double curved surfaces with single curved surfaces, and curved surfaces with flat surfaces, to generate a standard, simple façade fabrication wherever possible. In the meantime, the façade designer must give consideration to cost, construction difficulty, physical performance, and nice appearance.

For instance, the façade designer must take into consideration the supply situation for panels and the fabrication parameters of numerical control machine tools, and calculate the maximum sizes of panels, for purposes of gradual optimization and balance between nice look and cost efficiency.

The reason why BIM software can enable panel optimization lies in its excellent parametric modeling capability and its real-time data extraction capability.

Because the façade model contains geometric information (about panels, keels, connecting pieces, supports, and embedded parts), material information, and management information, when the façade panel shape changes, the corresponding material list and cost information is generated quickly. Because the cost of a special-shaped, curved-surface façade panel is uncertain, the adjustment of the curtain wall shape will definitely change a series of factors, including component cost and fabrication requirements.

BIM can correlate all the factors to form a data model with a dynamic update function, which is used to continuously improve and optimize the previous curved-surface façade models, compare the cost indicators for different design schemes in real time according to the output tabular bills of quantities, and, through a step-by-step iterative loop, finally make possible the balance between nice look and cost efficiency.

Automatic professional correction

As façade design engineering becomes more and more complex, there is a trend of cross-disciplinary cooperation in façade design. When the main structure is nearly completed, façade engineering can start, together with electromechanical engineering.

Façade design is closely related to other disciplines in terms of spatial position. BIM can change the traditional mode-of-work coordination among architects, structural engineers, and façade design engineers, and integrate the BIM models of different disciplines for interdisciplinary collision detection to discover the geometric position conflicts among different disciplines in advance.

For instance, through interdisciplinary collision detection, we can determine:

  • the reserved room between curtain wall keel and concrete structure
  • whether the structure leaves adequate room to the façade fabrication
  • whether the positions of embedded parts are accurate
  • whether there are any conflicts with decor and electromechanical positions

In another instance, we can examine whether the positions of large trimmings and logos are matched with the façade fabrication structure to determine whether there are any conflicts between the building and the façade fabrication.

Changes brought by BIM-based design to subsequent processes

Model-based design delivery

Model-based design delivery is one of the important means of industrialization of the architectural envelope industry. As façade fabrication is mostly customized in plants, design and fabrication are closely combined. Compared with traditional manufacturing, façade panel units enjoy a higher degree of customization, which is reflected by not only different designs for different projects but also different façade panels even in a project, fast and flexible production is needed.

Apparently, the mass production based on standardization and regularization of façade panel units is not the mainstream direction of industrialization of façade design engineering.

BIM-based design delivery can help avoid information loss in the transformation of two-dimensional design to three-dimensional fabrication model, and accurately transfer the façade design data to the numerical control machine tools, directly used for façade fabrication.

Therefore, the complete, accurate transfer of design data and automatic digital fabrication can not only improve building quality, but also reduce the huge waste arising from the design to different fabrication steps, which may be the industrialization development trend of the future architectural envelop industry.

Virtual assembly

Recently, unitized façade fabrication is increasingly being applied. Because unitized façade panels are fabricated and assembled in workshops, the builders working at the construction site must have a good knowledge of the façade panels for different façades and of different floor heights and types, so as to have them correspond to the right positions.

After the detailed BIM-based façade design is completed, the components, such as unit panels, keel frames, and irregular profiles, can be given unique codes according to data planning; then the façade model of the whole building is assembled, and the data can be extracted to generate a material list. In the material list, each component has a unique number.

The Installation Number of Façade Panels Generated From the BIM Models of GALAXY SOHO Project [2]

The Installation Number of Façade Panels Generated From the BIM Models of GALAXY SOHO Project [2]

Blanking, fabrication, and management of material placement are done according to the numbers and the units are quickly assembled according to the standard unit template drawings.

It is required to note the information about fabrication, transportation, and installation direction and sequence in the façade panels. BIM means can then be employed to preassemble the façade panel to better arrange the multi-operational construction plan and installation sequence, scientifically create site planning, reasonably arrange the construction period, improve installation quality, and reduce the idling of the labor force.

Tweet: #BIM Brings Changes to #Façade Design #AEC @3DSAEC @Dassault3DS to tweet this article

Whitepaper: Tech Changes Brought by BIM to Façade DesignExcerpted from Technological Changes Brought by BIM to Façade Design

To read more, download the full whitepaper

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