Category: CAD & BIM

The letters CAD stand for computer-aided design. BIM is an acronym for Building Information Modeling.

How Dynamo Can Transform Your AutoCAD Workflow: A Beginner’s Guide

How Dynamo Can Transform Your AutoCAD Workflow: A Beginner’s Guide

 

Unlocking the Power of Automation in AutoCAD with Dynamo

Dynamo is an open-source visual programming tool that can enhance your experience with AutoCAD by enabling automated, efficient workflows. Initially popularized in Autodesk Revit, Dynamo is now widely applicable to AutoCAD, helping professionals save time on repetitive tasks, streamline design processes, and develop more sophisticated designs without extensive coding knowledge. Here’s how Dynamo can optimize your AutoCAD workflows, and where to access free resources to get started.

What is Dynamo?

Dynamo is a visual scripting environment that lets users create custom scripts to automate tasks within Autodesk programs. By linking together “nodes” in a graphical interface, users can create workflows without the need to write complex code. This capability is especially beneficial in AutoCAD, where Dynamo can handle a wide range of tasks—from creating dynamic blocks and automating drawing processes to managing large datasets within the software.

How Dynamo Can Boost AutoCAD Efficiency

Dynamo’s integration with AutoCAD allows designers and engineers to address challenges and repetitive tasks by creating automated workflows. Some key benefits include:

  1. Automating Repetitive Tasks: Dynamo enables users to automate tasks such as copying objects, adjusting parameters, and modifying multiple elements at once, significantly reducing time spent on manual operations.
  2. Creating Complex Geometries: Dynamo can help produce sophisticated geometries and structures that are difficult to achieve through standard AutoCAD commands, expanding your creative potential.
  3. Enhanced Data Management: With Dynamo, users can easily link AutoCAD drawings with external data sources like Excel, automating data import/export processes for streamlined project management.
  4. Customizing Workflows: Designers can create scripts that tailor AutoCAD’s capabilities to their specific needs, from drawing setup automation to complex parameter adjustments.

Getting Started with Free Dynamo Courses

To begin using Dynamo with AutoCAD, there are a number of free resources available online to help you learn the fundamentals. Here are a few top options:

  1. Autodesk’s Dynamo Primer
    This is an excellent, free introductory resource created by Autodesk, covering everything from basic nodes and workflows to advanced functionalities in Dynamo.
  2. LinkedIn Learning – Free Trial for Dynamo Courses
    LinkedIn Learning offers a variety of Dynamo courses for beginners and advanced users. Although it’s a paid platform, LinkedIn often provides a free trial period, which is great for exploring Dynamo basics at no cost.
  3. YouTube Channels – Dynamo for AutoCAD Tutorials
    Channels like The Revit Kid and Dynamo Learn offer free, high-quality Dynamo tutorials on YouTube. These videos guide users through practical examples and projects, specifically for AutoCAD users.
  4. Dynamo BIM Forum
    This online forum is ideal for those who want to learn through community interactions. The Dynamo BIM Forum hosts discussions, tutorials, and expert advice on Dynamo’s use with AutoCAD.
  5. Coursera – Autodesk’s Free Dynamo Courses
    Coursera offers free courses from Autodesk covering Dynamo and its application in BIM. Though focused on Revit, these courses provide foundational skills applicable to AutoCAD.

Tips for Implementing Dynamo in AutoCAD Workflows

Once you’ve gained a basic understanding of Dynamo, you can start experimenting with scripts that automate your specific tasks. Start small—such as automating line adjustments or copying blocks—and gradually build up to more complex tasks. Learning from online communities, such as the Autodesk Community, and practicing frequently will help you maximize Dynamo’s potential within AutoCAD.

Conclusion: Dynamo as a Game-Changer in AutoCAD Automation

Incorporating Dynamo into your AutoCAD workflows can boost productivity, reduce manual errors, and unlock new design possibilities. With the availability of free online resources, getting started with Dynamo has never been easier. By learning to leverage this powerful tool, AutoCAD users can drive efficiency and creativity to new levels, transforming their design approach with the help of automation.

With the right knowledge and practice, Dynamo can open doors to a more automated, efficient future in design and engineering.

 

 

AutoCAD vs. MicroStation: Which CAD Software is Better for Your Needs?

AutoCAD vs. MicroStation: Which CAD Software is Better for Your Needs?

 

When it comes to computer-aided design (CAD) software, two names often stand out: AutoCAD and MicroStation. Both are powerful tools that serve the design and engineering community, but each has its own strengths and weaknesses. In this article, we’ll compare AutoCAD and MicroStation to help you determine which one is better suited for your specific needs.

What is AutoCAD?

AutoCAD, developed by Autodesk, is one of the most widely used CAD software applications in the world. Since its launch in 1982, AutoCAD has become the industry standard for 2D and 3D design and drafting across various fields, including architecture, engineering, and construction.

What is MicroStation?

MicroStation, developed by Bentley Systems, is another leading CAD software that excels in infrastructure design, civil engineering, and large-scale projects. MicroStation is known for its robust 3D modeling capabilities and its ability to handle large datasets efficiently.

User Interface and Ease of Use

AutoCAD is often praised for its user-friendly interface and intuitive design. Many users find it easy to learn, especially those who are new to CAD software. The ribbon interface, command line, and comprehensive help resources make it accessible for beginners and professionals alike.

MicroStation, on the other hand, has a steeper learning curve. While it offers a highly customizable interface and powerful tools, new users might find it less intuitive than AutoCAD. However, once mastered, MicroStation can be incredibly efficient for complex projects.

Features and Capabilities

AutoCAD is renowned for its versatility. It supports a wide range of design tasks, from simple 2D drafting to advanced 3D modeling. AutoCAD’s extensive library of tools and plugins allows users to customize their workflow to suit various design requirements. Additionally, AutoCAD’s frequent updates ensure that users have access to the latest features and improvements.

MicroStation shines in its advanced 3D modeling and rendering capabilities. It is particularly well-suited for large-scale infrastructure projects, such as roads, bridges, and utilities. MicroStation’s ability to handle massive files and complex datasets makes it a favorite among civil engineers and architects working on extensive projects.

Compatibility and Integration

AutoCAD supports the DWG file format, which is widely used and compatible with many other CAD applications. This makes it easier to share files with clients and collaborators. AutoCAD also integrates seamlessly with other Autodesk products, enhancing its versatility.

MicroStation offers excellent interoperability, supporting a wide range of file formats, including DWG, DGN, and more. It integrates well with other Bentley Systems software, making it ideal for projects that require coordination across different platforms and teams.

Cost

AutoCAD can be expensive, particularly for small businesses or individual users. Autodesk offers various subscription plans, but the cost can add up over time. However, the investment is often justified by AutoCAD’s extensive features and widespread use.

MicroStation also comes with a significant price tag, though Bentley Systems provides different pricing structures that might be more cost-effective for certain users. The cost is often offset by MicroStation’s advanced capabilities and suitability for large-scale projects.

Industry Adoption

AutoCAD is the industry standard in many fields, including architecture, engineering, and construction. Its widespread use means that there is a large community of users, extensive resources, and abundant tutorials available online.

MicroStation is less commonly used than AutoCAD but is highly respected in specific industries such as civil engineering and infrastructure design. Its user base is smaller, but it is dedicated, and there are plenty of specialized resources available.

Conclusion

Choosing between AutoCAD and MicroStation depends on your specific needs and the nature of your projects.

  • For General Use and Broad Industry Adoption: AutoCAD is typically the go-to choice due to its user-friendly interface, versatility, and extensive support resources.
  • For Complex and Large-Scale Engineering Projects: MicroStation might be the better option, especially for infrastructure projects where its advanced features and stability are beneficial.

Ultimately, both AutoCAD and MicroStation are excellent CAD tools. Consider the specific requirements of your projects, your budget, and your team’s familiarity with the software when making your decision. Whether you choose AutoCAD or MicroStation, you’ll be equipped with powerful tools to bring your designs to life.

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Enhancing Road Modeling Efficiency : Leveraging ChatGPT with Civil3D

Enhancing Road Modeling Efficiency : Leveraging ChatGPT with Civil3D

Introduction:

Road modeling is a critical component of civil engineering and infrastructure design projects. Accurate and efficient road modeling plays a vital role in ensuring the safety, functionality, and aesthetics of transportation networks. Traditionally, road modeling has relied on complex software solutions like Autodesk Civil3D. However, with the advent of advanced AI technologies, such as ChatGPT, civil engineers now have a powerful tool at their disposal to enhance and streamline road modeling processes.

 

ChatGPT is an advanced language model developed by OpenAI. Trained on a vast amount of diverse data, it excels at generating human-like responses and providing valuable insights. With its ability to understand and generate text, ChatGPT can be integrated with Civil3D to simplify road modeling tasks, improve efficiency, and enable engineers to achieve better results.

Benefits of Integrating ChatGPT with Civil3D:

 

ChatGPT is an advanced language model developed by OpenAI. Trained on a vast amount of diverse data, it excels at generating human-like responses and providing valuable insights. With its ability to understand and generate text, ChatGPT can be integrated with Civil3D to simplify road modeling tasks, improve efficiency, and enable engineers to achieve better results.

  1. Automated Design Assistance: ChatGPT can serve as a virtual assistant, providing real-time guidance and suggestions during the road modeling process. Engineers can interact with the model, asking questions, seeking solutions to design challenges, or exploring alternative road configurations. That’s why this interactive collaboration facilitates faster decision-making and enhances the overall design quality.
  2. Design Optimization: By leveraging the vast knowledge base of ChatGPT, engineers can access best practices, industry standards, and case studies related to road modeling. ChatGPT can assist in identifying potential design flaws, evaluating alternative alignments, suggesting improvements, and optimizing road geometries for better safety and efficiency. This collaboration empowers engineers to create optimal road designs while considering various constraints and requirements.
  3. Streamlined Documentation: Road modeling often involves extensive documentation, including design reports, specifications, and drawings. ChatGPT can generate coherent and well-structured textual content, helping engineers automate the documentation process. By providing accurate and detailed descriptions of design elements, road parameters, and construction methodologies, ChatGPT ensures the availability of comprehensive project documentation, reducing the burden on engineers.
  4. Enhanced Project Communication: ChatGPT can facilitate effective communication between engineers, stakeholders, and clients. It can generate simplified explanations of complex technical concepts, allowing non-technical individuals to better understand road design plans. ChatGPT can assist in creating visual representations, generating 3D renderings, or providing virtual walkthroughs to help stakeholders visualize the final road layout.
  5. Continuous Learning and Improvement: As engineers interact with ChatGPT, the model can learn from the questions, challenges, and design choices. Over time, ChatGPT’s capabilities will expand as it gains insights from various road modeling projects. This continuous learning process enables the model to become increasingly proficient in addressing specific road design scenarios and challenges. This enhance its ability to provide accurate and context-specific guidance.

Conclusion:

Integrating ChatGPT with Civil3D holds immense potential for revolutionizing road modeling processes. The combination of advanced AI capabilities with powerful design software like Civil3D empowers civil engineers to overcome challenges, optimize road designs, streamline documentation, and enhance project communication.

By leveraging the expertise of ChatGPT, engineers can improve their efficiency, save time, and deliver superior road models that meet the highest standards of safety, functionality, and aesthetics.

As AI technologies continue to evolve, the collaboration between ChatGPT and Civil3D is poised to reshape the future of road modeling and civil engineering as a whole.

Introduction to BIM (Building Information Modeling)

Introduction to BIM (Building Information Modeling)

 

BIM is not a new concept

 

BIM is not a new idea or a new concept, it has been with us for many years now.

The developments in technology have enabled the construction industry to plan design construct and manage more complex and larger scale projects every year more and more.

Professionals in architecture, architectural technology, building surveying, quantity surveying, construction management and property development and planning are planning BIM increasing the efficiency of projects, improving collaboration between different stakholders and creating a central model that contains all the project information or only some of the added values of implementing BIM.

So what is BIM ?

 

 

What is BIM?

 

« BIM is evolution not revolution », it was developed over many years by various scholars from all over the globe who worked hand-in-hand with software developers.

The first BIM concept that appeared on PCs was in 1984. Two years later in 1986 Robert Ash introduced the term Building Modelling for the first time. Building performance data on early BIM applications in 1993. The golden years of BIM development were from late 1990’s to early 2000’s.

In 2004 collaboration on central models appeared on BIM applications the advancements of being accelerated considerably from that point and in 2008 more cutting-edge technologies such as parametric modelling and laser scanning were incorporated into BIM applications.

After 2015, different goverments made amendments to the existing construction regulations to imporve the incorporation of BIM process. For example in 2016, the use of BIM process in funded projects became mandatory in the UK. In 2020, Germany made it compulsory for transportation projects to use the BIM process.

 

While there are different definitions of BIM, it is a process that improves collaboration between different stakeholders throughout building’s lifecycle.

BIM is a process of working together to advance th efficiency of construction projects.

The most important element of a BIM process is a BIM model that contains all building information.

So here are two important questions :

  • What can we do with a building model ?
  • What building information can be integrated into a digital model ?

The answer to both questions is everything.

A BIM model includes a detailed 3D Model with all architectural and structural elements, mechanical and electrical systems, spaces details schedules and all sort of documentations.

It can easily calculate cost estimation, material quantities, energy performance, etc…

 

 

Is BIM only useful for large and complex projects ?

 

Absolutly not, implementing BIM is highly beneficial for fifferent types of projects with various functions and scales.

Scan to BIM for real-time surveying and incorporation of site features create a huge potential to design and construct spaces that are perfectly integrated with various site-specific conditions.

Implementing BIM will also increase project precision and accuracy less errors and mistakes. It will also improve the coordination between different disciplines involved in a project which would eventually result in minimizing time and cost of the projects.

Using BIM, we can have planned overlaps within different stages of the project which results in reducing the project time and cost.

 

Effects of BIM on Project Lifecycle

 

Issues before implementation of BIM

 

  • Incompatible ID systems,
  • lots of problems around file sharing and different file formats,
  • extensive use of paper email overload as more conversations were required among different stakeholders.
  • Low data scurity and unclear modern date ownship
  • low transparency of information flow and of reversion documents
  • limited project records
  • No central model containing all project information

 

Using one system of digital models increases the synchronization between various documents produced by different professionals involved in a project. BIM is the process of designing constructing and manaing a building or infrastructure collaboratively using advanced length digital models.

 

 

 

 

Basic IFC Concepts for Revit users

Basic IFC Concepts for Revit users

 

What is IFC and why it is often misunderstood ?

 

IFC is developed by the buildingSMART association and it is an open standard for the BIM Data exchane.

IFC stands for the Industry foundation classes and it’s not a file format, but actually a semantic schema which defines the way the building related data is described and inherited.

This also means that you can open an IFC file in a simple Texteditor and view its content.

The foundation of IFC are as its name already says the classes, which can describe anything, from a physical object like a wall to abstract concept like a task.

Unfortunately the buildingSMART documentation is very complicated and even scary, because it is actually meant for software developers and not for us mortal Revit users. But the good thing is that you don’t need to get that deep into the theory in order to be able to uses IFC correctly.

 

Using the IFC documentation

 

Now let’s have a look you can find and navigate the IFC documentation. You can always access the latest version through the buildingSMART wbsite at https://technical.buildingsmart.org/

As you can see here, IFC4 is the latest development and it is also still being updated.

IFC2x3 is also still often used, but we will stick with IFC4 in this video series, because it is the latest development and 2×3 will become more and more obsolete in the next years.

The best way to find the IFC classes is to select alphabetical listing from the main page sinc IFC4 we can also browse the list in other languages like German, or also in plain English.

Keep in mind that there are a lot more IFC classes that Revit categories for two reasons : the first one is that IFC classs are often more granular and the second one there are many classes which don’t describe physical elements or don’t have a representation in a BIM modeling software like Revit.

Another important point are the predefined property sets – all of the common property sets are mapped automatically when exporting from Revit.

These are very important because they provide the most important element information in a standardized way, and are always structured and named in the same way, no matter from which software the model has been exported.

Same goes for the Quatity sets, which are a special kind of the property sets are used for QTO workflows.

 

IFC Mapping table in Revit

 

You can find the mapping table if you go to Revit -> Export Settings -> IFC. This table displays the Revit Categories matched to IFC classes and types.

Note that this table is already filled out by default and it should cover the most common usecases but of course you can always change it if needed.

For this, you will need to copy and paste the exact name from the IFC documentation. Certain Revit categories can also be excluded from the export by simply inserting Not Exported.

This is just the starting point, as in most BIM Projects you will need a more granualar mapping on the object level. The mapping table is saved as a simple textfile and can be easily shared.

If you ever want to revert the default settings or of the mapping table gets messed up by switching between different Revit languages, you can reset it very easily select Load, delete the default file and then hit « Standard ». This will regenerate the file you just deleted with the default, hardcoded settings.

Once we have set up the mapping table, you can launch the Export dialog. Here y ou can select between several already pre-defined setups or also modify these.

 

Model View Definitions (MDV)

 

Note that the IFC schema is always combined with a Model View Definition or MVD, which defines a subset of the IFC schema. You can compare an MVD with a 3D view in Revit, where all elements from all phases, all analytical models and calculations are all displayed at the same time.

Model View Definitions help to extract the data in a meaningful way, like a dedicated view of the model.

This is very simplified explanation, but you get the point !

If you use IFC2x3, your choice will usually be the Coordination View 2.0, and for IFC4 the Reference View. These are the default MVDs defined by the buildingSMART for BIM coordination.

 

Open source Revit IFC

 

The client of the BIM Manager should always define which IFC version and which MVD is to be used in a project in order to keep this consistent.

Otherwise, just use IFC4 Reference View for your specific discipline. It is important to keep in mind that Autodesk offers an open source Revit Toolset and regularly updates IFC for Revit independantly from Revit Updates.

This way the developers can react much faster and publish updates whenever needed. Therefore you should keep an eye on the version number and check back on apps.autodesk.com for updates.

The easiest way is to just search for revit IFC and you will be presented with the apps for the four most current Revit versions.

Often you will find these updates a week or two earlier on github, where the developers are also publishing the sourcecode, but you can also download the most current installers here.

 

Current download links for Revit IFC (sidebar): https://bim-me-up.com/​

Autodesk App Store: https://apps.autodesk.com​

Revit IFC on Github: https://github.com/Autodesk/revit-ifc​

Wiki OS with useful tips around openBIM, not only for Revit: ​ https://wiki.osarch.org/index.php?title=Category%3AAutodesk_Revit

Recommended freeware IFC Viewers:

Open IFC Viewer, very fast and supports latest IFC Versions: https://openifcviewer.com/​

BIM Vision, powerful viewer, offers additional features for measurement or easy display of classifications: https://bimvision.eu/download/​

BIMcollab IFC Viewer, popular viewer, offers direct connection to the BIMcollab platform: https://support.bimcollab.com/en/zoom…%E2%80%8B

FZK Viewer, a bit oldschool, not good with big models, but very accurate display of properties: https://www.iai.kit.edu/1302.php​

 

 

BlenderBIM: An open source solution for BIM projects?

BlenderBIM: An open source solution for BIM projects?

 

If you’ve never heard of Blender, it’s only a matter of time! In short, this is freely accessible graphics software, which offers, for example, 3D modeling, simulation, rendering, composition, motion tracking, video editing and animation pipeline functionalities. Created in 1998, it is currently being developed by the Blender Foundation.

Since 2019, the software has been increasingly recognized by companies in the graphics industry, such as Epic Games, Ubisoft or NVIDIA.

 

What’s new for us:

 

The BlenderBIM add-on has been around for some time: a specific add-on for Open BIM processes that rely on the BuildingSmart IFC format. It is built by volunteers from the IfcOpenShell project, still in development mode, and constantly evolving.

 

A new free BIM tool, on software recognized in the world of graphics, and capable of understanding the IFC format. What more ? This is how we focused our attention on the possibilities of this add-on. Is it possible to analyze and modify the data contained in an IFC for example? We summarize everything:

 

By default, in Blender, collections contain objects that have location, materials, etc. With BlenderBIM, we get several additional properties and functionalities: durability, price, description, globalID, assignment of IFC classes, assignment of attributes and sets of properties to elements, calculations of quantities from the geometry of objects, etc.

 

Taking into account the ability of this add-on to interpret the IFC format, we therefore asked ourselves the following question: can we think that Blender, technical and cutting-edge software in the field of graphics, can represent a help for stakeholders? of a construction project? Since BlenderBIM allows you to make modifications to an IFC mockup, it can be a solution in a BIM project, especially in the operation-maintenance phase.

In fact, during this phase, we start by using the model of the work executed “as built” in IFC format. In order to identify the functionalities this sotftware can offer to a project today, several tests were carried out on blender 2.92.0 (BlenderBIM addon blender28-bim-210404-py37-win, IFC2x3)

So here are examples of options we can obtain quite simply with the help of BlenderBIM:

  • The ability to view IFC models,
  • to be able to delete objects (and therefore by extension to divide IFC models by a new save),
  • To be able able to move objects, and change the values ​​of their properties
  • To be able to add new attributes to objects from Blender.

This is possible: but the IFC models we can export from Blender do not seem to keep the new properties, we consider that this option is still limited to a concrete deployment on a BIM project.

In short, from our point of view, IFC export remains difficult to master, and still seems to limit the possibilities of modifying the IFC format thanks to Blender.

To take a step back, it is also necessary to consider that this is a software whose technique is quite advanced and whose handling represents several years of practice.

However, we are counting on the meteoric progress of the BlenderBIM add-on to allow us to manipulate IFCs with more freedom in the future.

 

 

A Brief History Of IFC Format

A Brief History Of IFC Format

 

IFC or Industry Foundation Classes is a global standard for describing, sharing and exchanging information on building and facility management.

To encourage interoperability between BIM applications from several companies it was created the IFC format, specified and developed by buildingSMART.

The IFC format is a repository of data for open building semantic information object, including geometry, properties and relationships to facilitate :

  • the interdisciplinary coordination during the construction of the information models, including design disciplines as architecture, structural or services, as well as during the construction phase;
  • the data sharing and exchange between IFC applications;
  • the transference and reuse of data for analysis and other further tasks.

 

The IFC initiative began in 1994 when Autodesk started to develop a set of C ++ classes that could support the development of integrated applications. Twelve other American companies have joined the initiative, initially defined as the Alliance for Interoperability.

In 1997, the name was changed to International Alliance for Interoperability due to the integration of more international companies. This new alliance was reconstituted as a non-profit organization with the goal of developing the IFC as a neutral product for the architectural, engineering and construction industry.

The designation of this initiative was again changed to buildingSMART in 2005.

In 1997 it was launched the first version of the IFC format. Over the years, the IFC format has been improved and new versions have been released.

The improvements are based not only on the optimization of the various features previously supported by the format, but also in increasing the variety of information supported.

As an example, just after the IFC 2×2 version it was possible to transfer structural designs, once BIM modules applications dedicated to the structure design have arisen later. However, only in the latest release, IFC 2×4, it became possible, for example, transfer via IFC modeled reinforcement on construction elements, such as walls or slabs.

The IFC schema is constantly evolving. The current version, released in 2013, is IFC 4 (the prior releases were labelled as 1.0, 1.5, 1.51 and then 2x, 2×2, 2×3).

 

From sketch BIM to design BIM

From sketch BIM to design BIM

 

As a promising technology for building lifecycle management, Building Information Modelling (BIM) has been extensively studied in the last decade.

A BIM is a shared knowledge resource for information about a facility forming a reliable basis for decisions during its life-cycle; defined as existing from earliest conception to demolition. BIM enables collaboration among varieties of stakeholders through data interoperability among different BIM applications.

Currently, BIM applications

involve every stage of a construction project, including conception, design, construction, and operation management.

BIM has been extensively applied in the design in construction sector. The design phase usually has two sub-stages: sketch design (short for sketch) and detailed design (short for design). Both sketch and design stages generate three-dimensional (3D) BIM models.

Due to different purposes, the sketch and design stages use different BIM tools. The most widely-used sketch BIM tools include SketchUp, Rhino, and Form-Z. The design BIM models are usually designed using software tools like Revit, ArchiCAD, Bentley Architecture, to name a few.

The different purposes and different tools result in the different organizations of sketch BIM models and design BIM models. Sketch BIM models can be considered as a project-level organization of BIM data, because all the data are aggregated into one or a few human/computer-unknown building elements.

Additionally, sketch BIM models usually have little property data. That is, a sketch BIM model usually focuses on 3D design from an overall view and ignores the definition of elements and their semantic data.

Contrarily, design BIM models are organized in the element-level, where each element has well-defined semantic and geometric data. Subsequently, a BIM application can obtain both semantic and geometric

data of a building element directly from a design BIM model.

As a downstream stage of the sketch, the design stage expects to reuse the data in sketch BIM models to improve the design efficiency. However, the different data organizations hinder the reusability of sketch BIM models in the design stage.

Because the design BIM tools can not directly obtain data of building elements from sketch BIM models. This triggers new demands to abstract reusable building elements from sketch BIM models to facilitate the BIM design.

Industrial Foundation Classes (IFC) is an open, vendor-neutral, international standard (ISO 16739–1:2018) of BIM. The mainstream BIM tools in both sketch and design stages support the IFC specification. Without loss of generality, a BIM model means an IFC file in this study. Although some studies investigated the geometric description of an IFC file and its applications, the recognition of reusable building elements from sketch BIM models remains unexplored.

The exploration of building element identification from a sketch BIM model will bridge the gap between sketch BIM models and design BIM models, smooth the reusability of data from the sketch stage to design stage and improve the design efficiency by avoiding the redesigning of building elements.

BIM-Based Collaborative Building Process Management

BIM-Based Collaborative Building Process Management

 

The book reports on the great improvements in the information and knowledge management due to the digitalization of the building sector.

By summarizing several research projects addressing the implementation of BIM in different stages of the building process, and the definition of standards at Italian, European and international levels for managing information relying on the implementation of BIM-based processes, it showcases the efforts, especially within the Italian building sector, to build a standardized structure of information and develop tools for collecting, sharing and exchanging information between stakeholders involved in different stages of the building process, so as to enhance the storage, traceability, usability and re-usability of information management.

Further, it presents an enhanced use of information that relies on the adoption of the standardized structure of information, and proposes dedicated applications for automating the process of information fruition. Lastly, it features a digital platform for different stakeholders in the building sector, such as manufacturers, producers and construction companies.

 

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