Tsaratsiry started with the presentation of Tsara Architectures. His architectural firm specialized in BIM is mainly commissioned for BIM design’s missions, BIM support and BIM management. He explained that since nearly 2 years now, Tsara Architectures has been working in collaboration with Francois Leclercq Architectes Agency, the agency where Clémence Eliard is working.
The presentation started by Francois Leclercq’s Nanterre University project. Tsaratsiry rapidly explained: “In the project, everyone is not using BIM yet “. This project was started traditionally in 2D in AutoCAD and was then continued in BIM because project owners tend to ask it more often, even if it is not compulsory.
When the question about the interest of BIM method for project contractors was asked, Clémence answered: “Private contractors have big interest asking for BIM because they can reuse the information to prepare the bills of quantities.” “Provided that they know how to use them of course” insisted Alexandre Poter (GIRPI Technical Director at Aliaxis).
“We have an increasing number of public tenders. High-Schools and Colleges are increasingly asking for BIM”, declared Tsaratsiry. He adds: “70% of the construction costs is concerning exploitation and exploitation is optimized in BIM”.
Situated in the Southwest of Paris with a significant road network as well as tramways and bus systems, the city-center was cut from the rest of the city by the forest. Clémence explained « The project’s main issue was to deal with the isolation of the city-center, a very disparate urban fabric. »
Clémence explained: « The aim was thus to recreate new connections with the city through the creation of a wide tree planted alley and a second planted alley which allowed the connection with the inner-city. The main advantage of the project was the creation of a wide square which will be vivid and will connect the two tramway stations.
Revit or Archicad?
When this question was asked, Tsaratsiry answered: “Revit is used because it is multidisciplinary. Archicad is interesting for architects but less interesting for other construction players. That is the reason why so many Revit poles of activity are created.”
This question was the occasion for Tsaratsiry to talk about a project of collective dwellings in Marseilles in collaboration with CARTA-Associés Agency and François Leclercq. “Everything is made with a digital model” he explained, “and the exchange of a digital model allows a better coordination”.
Building Information Modeling: Only for the largest companies?
“Tsara Architecture supports agencies working on projects large enough to imply working with BIM. But BIM is not excluded for smaller projects, it only requires more expertise“.
The BIM method: a methodology above all
According to Tsaratsiry, “BIM remains a working method. BIM manager is not a title, it is a role”. He added: “When we say BIM, we already talk about a project environment”.
At Tsara Architectures, the decision was made to create a charter and to have a quality control because “When you say conception it implies complete project management”.
Toward a BIM city?
The objective would be that one day, a whole city would be created in BIM. Tsara Architecture is working on a project with François Leclercq: the urban project of “Euroméditerranée” at Marseilles. The project managers and project owners with the support of the CSTB are creating a prototype of a multiscale BIM digital model for the Mediterranean urban design. Francois Leclercq Agency is in charge of the urban part of the project.
Thank you again Clémence and Tsaratsiry for your presentation!
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Exclusive distributor of Soprasolar® solutions, Solardis was created in 2008 and is a 100% subsidiary of the SOPREMA group.
With France (including French overseas departments and territories), Spain, Great Britain, Italy, Netherlands, Switzerland and the US, Solardis has :
Biodiversity law, Bepos, RT 2012, Solardis masters the energy and environmental regulations. SOLARDIS supports and coordinates all projects in compliance with these building regulations and the standards of its partners.
Being the French leader in waterproofing within an evolutive sector, Solardis is known for its reliability and for the excellence of its propositions and aims at maintaining its level of expertise.
Solardis took the decision to transform the lack of BIM solar panel in the market into an opportunity. It also aimed at simplifying the architects’ choice when they will search for high-quality solar panels.
The two following products from Soprasolar range were modeled in BIM by Polantis:
SOPRASOLAR FIX EVO
The products from the Soprasolar range are all guaranteed 20 years and are adapted to each kind of customer’s needs when it comes to flat and terrace roofs. Among the BIM objects from Soprasolar range, you will find solar panels systems on a waterproofing system object.
The user will thus have 2 levels of detail within a downloaded file. Moreover, the information within the files being exhaustive, all the construction players can make the best use out of them.
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Gonçalo presented Silex2, the project of EGH and ERP. This project for “La Foncière des Régions” which was created through the collaboration between Arte Charpentier and Ma Architectes, is a project of building offices situated in Part-Dieu in Lyon.
“BIM is a lot of daily efforts and the management of a high quantity of information”.
From the beginning of the presentation, Gonçalo insisted on the importance of going out of the agency to train yourself in BIM and to remain alerted to the new trends and to keep in touch with the current topics.
The presentation was organized in the following order:
According to Gonçalo, BIM aim is mainly to optimize exchanges to avoid redundancies and to sharpen the models. This working method allows to propose more complex projects.
BIM is useful on the construction sites and during the management phase. There are different levels of maturity: the BIM level 0, 1, 2, 3 etc. This level depends on the implication of BIM actors as well as on their level of maturity.
At Arte Charpentier, this working method was adopted in 2013, and now, it represents 25 projects in BIM level 1 or 2. It should be noted that each program (public housing, office building, hotels, shopping centers, etc.) implies different pattern and methodology.
Gonçalo insists: “In theory, when people talk about BIM, they are thinking about beautiful pictures but not systematically about what is beyond. BIM implies a constant effort and the management of a high quantity of information”.
The project Silex 2
The presentation naturally focused on the project Silex 2.
It is a project of extension and rehabilitation of an existing EDF tour from the 70’s with the presence of asbestos.
This initiative to work in BIM for this project came from Arte Charpentier and from the project owner, La Foncière des Régions. MA Architectes retains the control over the artistic direction and the teams are trained to master Revit with the aim to model the tour and to exchange in BIM. ARTE Charpentier is in charge of the coordination mission between the trade bodies (the ERP part, landscaping and bedrock – all the graphical interface).
In order to work efficiently, Gonçalo and his team gathered all the existing digital models within the same model conceived by the agency: liquids, kitchen’s manufacturers and designers, and structures.
He said: “Compared to a traditional approach, the digital model allows to access in one click to all the plans, sections and elevations. It represents a possibility to identify all the hypothetical problems during the study phase and to foresee the problems to tackle them. With the digital model, we have access to the different pieces of information. For instance, in the case of a terrace with waterproof excavations, we can have folded walls problems… With the traditional approach vs. BIM, the problem is never solved during the study phase because the views would not allow it”.
A question was asked: “We now know how to measure the costs when we use the traditional method. But, are we really saving money with BIM?”
Gonçalo answered: “In the study phase, we worked on the project with the traditional method, with the same surface and the same characteristics than the project Silex 2.
On Silex 2, at one moment, we have decided that each stair should be lowered by 1 centimeter (0.39 inches). It took us one and a half day to update the digital model and all the attached documents.
For a similar modification on the comparative project, our colleagues – who are still working with Autocad – took 3 weeks to make this update”.
Gonçalo also sad “ But I do not want to advertise for BIM method, the team members working on the lowering of the stairs have at least 3 years of experience in BIM. The digital model was optimized to allow all these quick changes.
The advantage of BIM is that it allows more flexibility and reactivity because the architects remain “artists who tend to question themselves”.
The challenges and issues at stakes about BIM
During the presentation, a question was asked about the place of the economists. According to Gonçalo, an economist can access the digital model and can exploit it because differents software do exist to move from a digital model to another. However, it is clear that his role will change and that he needs to redefine its way to work with the architects.
But BIM does not only have advantages and it is the part developed the most by Gonçalo during the presentation. Here is a non-exhaustive list:
-When we start using BIM method: we need to have a broad knowledge of the project. Indeed, to define some aspects of the project. What is carried out in advance and sometimes what is carried out during downstream processing need to be decided because you cannot move forward that way.
-In general, working methods are benchmarked and what is not rigorous is not allowed, it implies a reassessment.
Gonçalo concluded: “as we are in the premise of BIM, we feel our way along, we do not know exactly what we are going forward to, and everyone is doing it his way, which is totally normal. What is important is to keep our eyes open to know where to go and to pay attention to others.”
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Olivier presented three architectural projects in BIM on which his agency worked. Since 1996, all the projects have been conceived on ArchiCAD.
There is no such a thing as a single line of thought about BIM
As an introduction, Olivier Celnik indicated that the projects presented were a pretext to talk about BIM and that a unique way of thinking does not exist when it comes to architecture. However, different points of views and experiences do exist.
The first project was presented right after the presentation of a quantitative study on BIM’s perception among future architects (ENSA Versailles’ students) conducted by Olivier Celnik.
ROUEN: Substantial renovation of a commercial building from the 30’s, 2 teams of architects from which Z.STUDIO, 2 teams of engineers (heating and structural engineers)
This renovation project started with the digital modeling of the building as an illustration. Olivier Celnik specified: “we worked on the digital model from the paper plan, it needed 10 to 15 day of work that is to say 3 euros/m² (10.76391 sq. ft.) for this 5000m² building (53819.552084 sq. ft.)”.
When presenting ArchiCAD view of the project to our guests, Olivier Celnik explained: “How to imagine an architectural solution without understanding? We assume that without a 3D view, one does not understand anything about construction. Here we are talking about BIM because the digital model contains all the intelligence and precision of the construction”. He illustrated this with the example of the elevator installed at the entrance of the building to guarantee a PRM (person with reduced mobility) access.
He illustrated this with the example of the elevator installed at the entrance of the building to guarantee a PRM (person with reduced mobility) access. Even in the draft phase, the project team made sure to install the elevator taken from the catalog of a manufacturer (since the norms and dimensions are consistent with the reality). This was to ensure that the engineering design office would know how to install and place it into this specific part of the project.
Olivier added, “If I want to search this object into ArchiCAD library and that I take a product designed in Hungary or India, I am going to have a product adapted to local norms and not a product that I can insert in my Rouen’s project.
This approach allows architects to be sure about the architectural solutions proposed and about the cost of the project since the initial stage.
“BIM method allows a significant flexibility, we can change rapidly the project when working on a digital model to better match with the client’s requirements”.
The digital model can be used by all project’s stakeholders: the plans, drafts, PDF, etc. sent to them are all providing the same digital model to downsize the risks.
CAZAUX: Construction of a new building, training center of 3000 m² (32291.73125 sq. ft.), ZSTUDIO architect and authorized representative.
This second project was the occasion for Olivier Celnik to talk about the notion of collaboration. The associated engineer of the project did not work in BIM but he participated to the collaborative approach by working on documents from the digital model with Google Sheet.
This associated engineer and the architects could look at the same document by working online. Olivier learned the lesson from this: “If we wait for everyone’s BIM level to be the same, we will not move forward. You have to know how to adapt to everyone level and propose adapted solutions so that everyone will benefit from the digital model and from the information associated with the project”.
For example, a solution would be to consider that the contractual documents will only be documents from the digital model without any other intervention. That is how Olivier’s teams help some project manager to prepare BIM Offers and can thus provide the digital model for a consultative use.
This situation corresponds to today’s practices reality and does not overwhelm the interlocutors who are not “BIM ready”.
BREST: Construction of a new 5000m² (53819.552084 sq. ft.) commercial building. Z. Studio intervenes in the BIM process and modeling along with the architects and design engineers of the project.
The last 2 projects allowed Olivier to make a demonstration of the tools available for all the construction actors to work in digital models. Then, beyond the conception phase, the interest of BIM is to exchange more simply and more precisely.
To do so, the digital model was exported in IFC from the design software and opened on the free viewer BIM+.
Olivier’s teams propose to the clients, the companies and others to visualize the project and to make suggestions and instantaneous modifications. The software does not require a lot of power from the computer and the navigation into the project is simple so that everyone can be part of the game.
Olivier has shown how to annotate the project and how to create “subjects” identified as coming from him which could be read by all the project’s stakeholders: This type of window should be changed, the wall colour should be modified too, be careful and sure to take this support pillar into consideration…
Olivier ended this presentation by highlighting the pragmatism: “If thanks to the BIM use, we succeeded in securing the costs and delivery dates, if at the reception of the construction work we are not too far from the costs and delivery dates decided on the call to tender, we believe that the mission is accomplished, that we limited the risks.
At the end of Olivier’s presentation, our guests asked a lot of questions to Olivier: “What are the criteria to choose the objects to integrate into the digital model? What is the BIM evolution on in-site? Are there a lot of regional discrepancies between Paris and other regions? Do manufacturers need to have BIM software at home?…”.
A common thought of our guests: Olivier has known how to immerse them in the reality of his BIM projects by focusing on a practical and concrete case study, far from preconceived ideas about BIM and he has known how to reinsure those who did not start using BIM yet.
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Siplast launched their first CAD and BIM objects library with 5 highly detailed roofing systems on polantis.com – Europe’s first, largest and most visited CAD and BIM objects web platform. 5 new roofing systems will be published in the upcoming weeks and dozens more in the upcoming months.
Siplast‘s high performing CAD and BIM objects were developed by Polantis expert architects team. These objects are specially tailored to match the needs of architects and AEC professionals during all planning, construction and operation phases.
Siplast is amongst the first roofing manufacturers to understand the importance and power of a CAD and BIM objects catalogue for the use by the entire supply chain of the building industry. These first 5 systems (and the dozens to follow shortly) give Siplast a huge advantage over its competitors who are yet to create their BIM catalogues.
Polantis insures the worldwide distribution of Siplast’s CAD and BIM objects on its various platforms and partner platforms. Since their introduction last Friday (28th of November) hundreds of systems were downloaded and deployed in projects by hundreds of AEC professionals. In the upcoming days Siplast expects to reach thousands of Architectes and specifiers. Polantis has a base of over 75,000 AEC professionals with a new member joining in every 8 minutes.
The five systems already available online at https://www.polantis.com/siplast all belong to Siplast’s most emblematic and universal line – “Silver”.
The currently proposed roofing systems are of the following categories:
– Under heavy protection or pavers on paving supports
– Garden roofing
All of the “Silver” line products have an integrated RFID chip with and a 20-year guarantee. Siplast provides an in-depth technical support for AEC professionals and thanks to these CAD and BIM objects specifiers get a much faster and better service.
In the upcoming months the entire Siplast catalogue will be developed into CAD and BIM objects. Including interior acoustic insulation products.
Please click here in order to access the Polantis platform
Speaking at the Energivie summit at Strassbourg on 4th of November 2014, Bertrand Delcambre, – Head of the BIM implemntation for the french Ministry of Ecology, Sustainable Development and Energy – announced that the BIM reform in France is to start “very early 2015”.
Bertrand Delcambre, aka “Monsieur BIM” (Mr. BIM) was appointed by the current Minister of Housing and Territorial Equality – Sylvia Pinel – earlier this year (25/06/2014). His aim is to mount a French BIM reform similar to the British one. The Ex minister of the same ministry – Cécile Duflot announced on March 2014 that the French BIM reform will take effect on 2017 for the Government procurement projects. Later to be extended to all local and regional public tenders.
France’s BIM reform is part of an ongoing wave of governmental BIM reforms around the world. Both French and German governments recently endeavored in creating BIM reforms after the European directive voted on the 15th of January 2014 incites all 28 EU member states to do so.
France has the largest construction market in Europe (followed by Germany and the United Kingdom) By 2018 all three markets will be entirely reformed (UK by 2016, France by 2017 and Germany by 2018) in order to embrace the building information modeling method of work and technologies.