Rule ID: SUK/1001/v2.2
Changes and improvements to the Fire Stopping rules may have an impact on any existing results, please take the time to review to the changes. See Update Log for BIM Coordination + Extension.
This article describes the Stud Opening Clash rule that has been developed by Solibri UK Ltd as part of the BIM Coordination + Library. The rule is available for Solibri Office 9.13.5 or later via a Solibri Extension, which can be downloaded from Solibri Solution Center.
The rule identifies clashes between services and wall framing components that are not typically modelled. The rule checks for clashes with the vertical and header studs of openings and can set an optional tolerance value. The vertical studs can also be extended below the floor levels where suspended floors are present.
The article covers the following topics:
Framing elements are not usually modelled, unless they are required for fabrication purposes. This means there is potential for critical issues only to present themselves during the construction process. This rule emulates the mass and position of key framing elements (studs) in critical locations, such as around openings. These are then used to check for clashes with identified services in the rule filter.
The benefits of using the Stud Opening Clash rule will vary depending on the role the user will play in the project, as shown by the following examples...
For Design Consultants:
no requirement to model the framing elements hidden within the walls
issues identified and reported early helping to de-risk subsequent associated tasks
For BIM Coordinators:
ability to perform this check based on parameterised rules (impossible without the model geometry)
reduced requirement to configure and run multiple rules to achieve similar results
massive time saving to process results compared to a manual checking process
For Building Owners:
reduced risk of unnecessary rework and associated delays and costs
The rule is very simple to configure consisting of only three main areas – the Door / Window/Opening (1) filter, the Services (2) filter, and the Parameters (3) to define the geometric size of the stud components, as shown in an example configuration below:
To easily access the Rule Parameters, right-click on the Rule in the Checking View and select Rule Parameters from the context-sensitive menu that appears as shown below:
Setting the Door / Window / Opening filter
In the Door / Window filter you can define the opening components to provide the location of the framing elements to be checked. This can be achieved using the filter to select doors and / or windows.
Checking Doors / Windows / Openings related to specific Wall Types can be achieved with either the use of manual Classifications or a Gatekeeper Rule (e.g., Rule 231 – Comparison Between Property Values).
The rule will check openings based on the components specified. If doors or windows do not have a relationship to an opening, they can be added to the filter manually and the rule will use the geometry definition of the frame to locate and create the stud clash volumes.
Setting the Services filter
The Second filter is required to specify the services that will be checked against the studs associated with the identified openings. In the example above, the services are filtered by the discipline value Building Services. Alternatively, these could be defined using a set of classified objects or other filter methods.
The component filters have the standard options to add and remove rows, load, and save filters and set the selection basket content as well as having the ability to use Severity Parameters to assist with identifying specific types of issues in the Results.
Setting the Geometric Parameters
There are three parts to configure to define the component dimensions – the Vertical Stud size (A), the Header Stud size (B) and the Suspended Floor Depth(C).
Any dimension can be set to zero if not required in the clash check
The tolerance value on both the Vertical Stud and Header stud extends the check an additional distance from the main stud component to ensure no other components are too close
a. Vertical Stud (A): The Stud Size (width) and Stud Height can be defined or can automatically be set by checking the option Use Storey Height for Vertical Stud Height. The depth of the Stud is defined by the thickness of the wall in which the opening is placed. A Tolerance can also be set to allow a clearance check on either side of the opening and stud
b. Header Stud (B): The Stud Size (height) can be defined. The depth of the Stud is defined by the thickness of the wall in which the opening is placed. A Tolerance can also be set to allow a clearance check above the opening and stud.
c. Suspended Floor Depth (C): If the project uses suspended floor construction, the Floor Depth can be added to extend the base of the studs by the specified distance. In the example below, the Studs have been defined with a large Tolerance to show what can be achieved:
The blue outlines represent the Vertical and Header Studs. The red components are the ones where a clash has been detected with dimensions drawn to those components that fall within the Tolerance.