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clash detection bim

Clash in a smarter way!

Building Information Modeling is a method of achieving collaboration and coordination in the implementation of design and other aspects of a construction project. Engineering design is a dynamic field that necessitates effective coordination among a variety of stakeholders to achieve desired results. Building design project entails multiple stakeholders, including structural engineers, architects, contractors, suppliers, and vendors, which can make the project completion process extremely complicated and complex. Furthermore, the entire building design and construction ecosystem are confronted with the difficulty of project completion on schedule. Precision and accuracy are key aspects throughout the design phase in such a circumstance.

 

Clash detection is a term used frequently by AEC firms. Three-dimensional drafting of computational models allows for this type of early detection of discrepancies in the design process. Detecting discrepancies is critical because they can have a significant impact on the construction process, resulting in delays, design changes, material costs, and budget overruns. Clashes are typical in construction projects with multidisciplinary teams working on a single construction project. Clashes can be geometric, with one structure passing through where it shouldn’t, or schedule-based, with elements occurring concurrently rather than sequentially.

 

There are three types of clashes: hard clash, soft clash and workflow clash. Many hard and soft clashes, as well as workflow clashes, occur when designs from various disciplines are combined on a shared platform. 

 

If such model coordination is not done properly this can result in significant rework. For example, problems occur when the MEP (mechanical, electrical and plumbing) models have not been checked against the structural models. This can result in concrete formwork having to be reworked to allow for conduits to pass through. This is very expensive and unnecessary. By evaluating the constructability or operations of the structure, BIM effectively assists contractors and construction engineers in discovering these clashes.

 

Clashes existed even before the advent of building information modeling methodology in older construction projects. Their detection, on the other hand, was time-consuming since it was mostly done manually. Construction crews would lay out the 2D blueprints and manually check for any potential clashes. 

 

Working as part of a multidisciplinary team might be difficult due to the high level of BIM model coordination and administration that is required. Modern clash detection techniques have the advantage of detecting clashes early and resolving them before the design is built. As a result, a large sum of money can be saved.

 

Types

 

The term clash detection encompasses a variety of clashes. There are three types of clashes: hard clash, soft clash and workflow clash.

 

Hard clash: A hard clash occurs when two objects take up an identical space. Hard clash detection is carried out using algorithms that are built in the BIM object and are based on geometry and rules.

 

Soft clash: A soft clash indicates that an object has not been given sufficient geometric tolerances in the design phase or if its buffer zone has been violated. Soft clash detection can even show whether or not an object complies with building codes.

 

Workflow clash: A workflow clash results from inconsistent or conflicting building information. This form of clash occurs when elements occur simultaneously rather than sequentially. 

 

Why do clashes occur? 

 

Clashes are usually discovered and resolved in BIM coordination, at a moment in time when a model or several models together are handed over to other parties. If so, they are resolved only when the model itself is already considered finished. Clashes used to be discovered when the models of all contributing parties were considered to be final.

 

The causes of clashes are multiple. Only some clashes may occur because of technical errors. The most obvious causes are plain design or modeling errors. But beyond that, the modeled components clash because of differences in the modeled level of detail, or there may be differences in the geometric representations between different software and model formats.

 

More common causes come down to the process, due to the fact that digital models necessitate completeness and precision even when the design is still in development. When multiple parties contribute models, they all have insufficient information about the final design. Insufficient information will necessitate them to place placeholders with exaggerated geometries. In other cases, the model may express not definitive geometry but merely design intent. These models may nonetheless persist even into the detailing phase. Finally, lack of (specificity in) design rules will cause parties that model concurrently to intrude into one another’s design space.

 

Quintessentially, clashes are a symptom of the siloed nature of construction project teams, where partners from multiple disciplines work isolated from one another. Even when cloud-based common data environments are available, they might not (sufficiently) support clash detection, and there may be a need for but lack of experts who can execute the checks.

 

To some extent, to expect no clashes at all could be considered even unrealistic, because all parties must submit their work due before deadlines, regardless of the complexities of the design. In that case, clashes are an opportunity for a project team to become aware of unresolved design issues and to adjust their planning to accommodate for previously unknown challenges before they grow out of hand or are even passed down to the next phase.

 

How to spot clashes?

 

Verifi3D supports clash detection in three forms: manually, automated, and assisted.

 

Manual clashing is supported by simple to use, easy 3D navigation. Using Section Box and Measurement Line tools, and either element orbit or first-person view, the user can visually inspect clashes. Selective display supported by features such as Element browser, Filters, context-dependent Smart Filters, and the innovative ghosting slider allows the user multiple ways in which they can classify the building information and obtain displays of the information they need in order to find clashes. While time-consuming, manual clashing well done is an efficient way for the human user to gain a higher-level understanding of the underlying causes of clashes that occur in the models and allows them to formulate their findings accordingly. Challenging our desire to automate everything, this process is very suitable in the design phase, where the relative truthiness of the digital models depends on many factors that are hard to grasp for computers and may elude even the most complex algorithms.

 

Automated clash checks can be set up by using one of Verifi3D’s built-in clash algorithms to create parametrically defined Rule Sets. Catering to different scenarios, Verifi3D has a hard Clash Check, a soft clash check called “Free Space Check” (upcoming), and intersection checks that test individual and federated models for any occurring intersections.

 

Assisted clash checking can be understood as a hybrid between manual and automated checks, made possible by the simple and interactive user interface in Verifi3D. The aim is seamless transitions from purely manual checking to the use of user-defined filters, to the use of algorithmic checks. In construction projects, there are always edge cases and unforeseen situations. Assisted checking workflows allow the user to make manual checking more efficient, and to make automated checking more meaningful.

 

How to resolve clashes? 

 

Through integrations with both CDEs such as Autodesk Construction Cloud and Autodesk BIM 360 and issue trackers such as BIM Track, BIMcollab and BIM 360 issues, V3D integrates into your workflow. It allows all users to check their clashes even before they hand over their models. More frequent checking means that modelers become aware of issues earlier in time and contact their project partners ahead of time if necessary. More frequent checking means fewer issues accumulate. Fast feedback loops between checks and authoring software, allow partners to bring together and align their models in one shared, up-to-date environment with minimal effort.

 

How to avoid clashes? 

 

Verifi3D comes with all ingredients for avoiding clashes. Once the project team has agreed to work in a BIM workflow that includes model coordination in Verifi3D, it is possible to make use of advanced clash detection algorithms and to create checking templates to be used by all members of the project team. Then model coordination can take place based on a common data environment. Checking becomes a distributed, collective activity, executed together by all members of the team, in a shared workspace. This allows for a pro-active, iterative workflow, in which feedback from the data validation tool is constantly available, akin to a spell-checker. This allows designers to gain shared situational awareness and to be better informed and more accurate with their model output.

 

Conclusion

 

As more data in standard formats are combined into models, software tools are likely to become more sophisticated. Working on a single collaborative, coordinated building model rather than numerous models brought together to form a single complete model at key stages should significantly reduce the number of project clashes.

 

Clash detection is a core feature of any BIM verification tool, and Verifi3D can detect clashes between one or more architectural objects in a BIM model. Save time by automating clash detection and improve the quality of the models by validating data early. Verifi3D provides designers and general contractors with the tools they need to validate BIM data, automate, and reduce clashes in real-time during the model checking process. 

 

Clash detection should be easy. With Verifi3D – we allow more people within the company to get involved earlier in the process. Clash detection should be done collaboratively and in real-time, this is possible in Verifi3D. Clash detection is more than error detection. Verifi3D is providing a much-needed lifeline for an industry beset by thousands of challenges by offering everyone the ability to visualize, evaluate, and eliminate clashes in advance. 

 

Digitized clash detection workflow allows teams to share and collaborate on the same project more easily and efficiently. Clash detection enhances BIM and helps in effectively identifying, inspecting, and reporting potential conflicts and interferences in a construction project model. Prioritize the issues that require immediate attention and assign and sync issues with issue trackers such as BIM Track, BIMcollab and BIM 360 issues in real-time in the cloud. The high level of collaboration and organization engendered by clash detection reduces the risk of human error during the model inspection and reduces the amount of rework and change orders required, lowering project cost, completion date and quality.

 

Clash detection is becoming more common among architectural, engineering, and construction firms of all sizes. 3D modeling with clash detection is a must-have for today’s builders and related industries due to the cost savings and efficiencies it provides. Reduce rework for both preconstruction and construction teams by ensuring that the highest-quality designs make it to the site.

Contributors:

Dr. Christian Friedrich

Dr. Christian Friedrich

Product Owner
Verifi3D by Xinaps

Milu Sini Lal

Milu Sini Lal

Marketing Executive
Xinaps

Meet Verifi3D by Xinaps at the Digital Construction Week this November!

Xinaps will be showcasing Verifi3D, a cloud-based model checking solution for the AEC industry at London’s Digital Construction Week this November.

Digital Construction Week is the UK’s only event dedicated to digital construction, engineering, design, manufacturing, and operation. This year the event takes place on the 24th and 25th of November 2021 at ExCel London with an expected 6,000 visitors from across the industry.

Max Fenton, BIM Practice Specialist at KPF will be speaking on the Tech Stage on “How Verifi3D enabled the KPF team to leverage the power of data validation: Model checking through predefined rulesets” on the 25th of November, 2021 at 10:15 AM. The session will focus on how using Verifi3D, a cloud-based model checking solution has helped KPF leverage the power of data validation.

In addition to the session, we will be showcasing demos, videos, and a place to engage with our team. Aside from mitigating risks in the pre-construction stage, Verifi3D simplifies the model checking workflow. With the implementation of Common Data Environment (CDEs) such as Autodesk Construction Cloud and added integrations with BIM Track and BIMcollab, teams can now manage the model coordination workflow, including clash detection, validation, and reporting in one environment. Build smarter with better data and save cost on rework.

Visit our team at stand A57 at the Digital Construction Week and experience how Verifi3D is revolutionizing the AEC industry! Come by and get an insight into how to simplify model checking in the cloud.

Revolutionize your building projects and hear from expert speaker such as Max Fenton, BIM Practice Specialist at KPF about the future of digital construction. Save your spot at the Digital Construction Week with no cost to attend and network with your peers to share ideas and experiences!

Milu Sini Lal

Milu Sini Lal

Marketing Executive
Xinaps

The 5 most important ways in which cloud computing is transforming model coordination

Introduction:

Cloud computing is a relatively new phenomenon in the construction industry. In recent years, cloud computing has exploded, with businesses of all sizes and across all industries shifting to Platform as a Service (PaaS), Infrastructure as a Service (IaaS), and Software as a Service (SaaS) models.

Cloud computing enables the delivery over the ‘cloud’ (the internet) of a variety of computing services, such as storage, databases, networking, servers, software, and analytics, giving building professionals access to faster and more flexible resources.

BIM is no exception to this trend.

There are numerous advantages to creating, managing, validating, checking and sharing BIM models in the cloud for the architecture, engineering, and construction (AEC) industry.

Cloud-based BIM in construction projects isn’t just about remote work; it’s also about dispersed teams and collaboration. Individuals from a variety of organizations, such as architecture firms, engineering firms, general contractors, and specialist subcontractors, make up project teams. These teams can benefit from cloud-based BIM whether they are working from home, in the office, or on-site.

The construction industry is investment intensive due to which they are hesitant to experiment with new technology. While cloud computing has a lot of potential in the construction industry, such applications are not widespread. There is a knowledge gap that must be filled to assist the construction industry in adopting cloud computing technology. And while the thought of cloud-based software may seem intimidating to those in the construction business who have been utilizing pen and paper, spreadsheets, and other manual methods for communication and project management, there are other construction perks to consider.

Cloud computing – How is it transforming data validation?

Cloud computing is gaining traction in the construction industry as companies realize the advantages of cloud computing such as flexibility, dependability, security, convenience, and efficiency over on-premises solutions. The 5 most important ways cloud computing is changing data validation in the construction industry are as follows:

  1. Improved model coordination:
    A significant part of the classification and checking of building models is still performed manually, costing a lot of time, effort and is prone to error. Although every project is different, the most common challenges are model coordination and the lack of interdisciplinary coordination between designers, engineers and contractors. These challenges lead to rising demand for better model coordination between teams, as the industry is still lacking an integrated workflow. Verifi3D bridges the gap between the design and the construction stage. Through an integrated workflow, Verifi3D empowers customers with a set of options that can help them classify their input data, validate and visualize their building model, report possible flaws and share them in real-time with the whole team. Teams can manage the whole model coordination workflow including classification, rules and checks, and issues management in one environment. Manage clashes and assign issues using issue trackers such as BIM Track and BIM 360 Issues to various members of the team. All the teams need in one great cloud solution! With improved model coordination, find and resolve conflicts between building components before they become costly to change orders.
  2. Better collaboration:
    There are several stakeholders with whom project-related updates need to be shared. To meet project deadlines, it is also necessary to collaborate with different teams at the same time. In today’s highly competitive business world, lost productive time equals lost money. This is where the cloud can come in handy. Through browser-based interfaces, all interested parties can promptly and securely access and work on the same cloud-based file from their location at any time using PCs, laptops, and tablets. All you need is access to the internet. For example, using Verifi3D enables project managers to easily share content with subcontractors, vendors, building owners, and investors to keep them in the loop about a project’s progress. As a result, each of them can work more efficiently to complete the project on time. Additionally, architects and engineers can collaborate on a BIM project that is being carried out in an architectural and engineering firm’s office using cloud computing, even if they are at different locations.
  3. Enhanced data security:
    Project data must be handled carefully, whether it is related to a construction site design, frequent updates, or concerns that arise. It is an important component of a project’s timeline till it is completed. Keeping this information on the office’s local computers renders it vulnerable to situations like system failure, data theft, and so on. The loss of data connected to a construction project is a mistake for the contractor who is working on it. To keep the clients’ data safe and secure, most cloud service providers employ data security technologies such as data encryption, intrusion detection and firewalls. With Verifi3D users can load models locally or sync models automatically with Common Data Environments (CDEs) such as Autodesk Construction Cloud and Autodesk BIM 360. Having all the project data in one place simplifies analysis and reporting while also increasing accuracy. Housing the data in the cloud as a backup ensures that they are protected in any situation and are only accessible to authorized users. Furthermore, cloud-based systems process data at a faster rate than on-premises systems, saving project managers time and allowing them to quickly and easily share results across teams and regions.
  4. Lower costs:
    Cloud computing’s versatility allows businesses to select the storage, processing, and sophisticated services that best suit their needs. Firms can invest in their digital infrastructure rather than purchasing computers and backup drives, which depreciate quickly. The best thing is that when technology advances, new software versions and updates are provided in real-time through the internet, allowing companies to take advantage of them right away. The exorbitant expense of hardware is eliminated with cloud computing. For example, Verifi3D offers three packages which are monthly subscriptions that can be activated anytime. Choosing the best cloud solution based on needs will result in a higher return on investment and increased productivity.
  5. Save time:
    One of the most compelling reasons to migrate a business to the cloud nowadays is the ease with which specialist software/solutions can streamline the data migration process. Businesses that sign up for a specialized platform receive support during the move and can contact service teams at any time. With cloud computing, time spent updating and patching software, distributing client solutions to end-users, and other more tedious IT activities is significantly reduced. The cloud enables businesses to significantly reduce the requirement for full-time IT workers and, in some situations, get more work done with fewer resources. Savings can be realized nearly immediately. Furthermore, because there will be considerably fewer service outages, employees will save time and be more productive.

Conclusion:

Aside from the previously mentioned advantages of cloud adoption, cloud computing has a promising future in the construction industry. Not only can cloud computing help cut costs, but it can also increase collaboration between teams, management, and stakeholders, allowing for speedier decision-making and more efficient resource utilization. As a result, construction projects are completed faster, with lower overhead and higher profitability. Companies in every industry, including construction, are turning to the cloud for these reasons.

Verifi3D by Xinaps is the spell checker of your BIM models. It is cloud-based and tackles many of the issues by providing pre-construction teams with model coordination, automated clash detection, and workflow integration that simplifies collaboration and minimizes manual work. With an intuitive and easy interface, Verifi3D is web-based and eliminates the need to purchase software or manage IT infrastructure. It helps professionals deliver work in quality and time, reduce rework, and leverage their teams, so they can focus on bigger tasks.

With the implementation of CDEs such as Autodesk Construction Cloud and Autodesk BIM 360, and added integrations with BIM Track and BIMcollab, teams can manage the model coordination workflow, including clash detection, validation, and reporting in one environment.

Verifi3D by Xinaps’s vision towards digitalization is very simple: enhanced model coordination in the cloud, better collaboration and best-in-class quality. In short, Verifi3D helps to build a better building by keeping the whole team up to date, improving building performance and eliminating the need for rework.

The construction industry is evolving stronger than ever, thanks to the integration suppliers such as Autodesk, Nemetschek, Hexagon, Trimble, Bentley. The integration suppliers play a major role in providing cloud-based collaborations services, making API’s publicly available to create an ECOsystem quicker, thereby facilitating solution providers in the AEC industry to come up with specific solutions.

Cloud services are inevitable for the construction industry as it strives to digitize its processes through the use of BIM-enabled applications resulting in the emergence of new business models, allowing construction companies to conduct business in a new way. Cloud computing will become a cornerstone as the construction sector embraces digital transformation, enabling more efficient back-office processes and making it easier for project managers to keep costs under control and projects on schedule. The sooner companies accept and use cloud-based solutions, the better equipped they will be to tackle the issues that lie ahead for the construction industry!

Milu Sini Lal

Milu Sini Lal

Marketing Executive
Xinaps