Abstract
The current study uses knowledge from digital architecture, computer science, engineering informatics, and structural engineering to formulate an algorithmic framework for integrated Computer-Aided Design (CAD) and Computer-Aided Engineering (CAE) of Integrally-Attached Timber Plate (IATP) structures. The algorithm is designed to take the CAD 3D geometry of an IATP structure as input and automates the construction and analysis of the corresponding CAE model using a macroscopic element, which is an alternative to continuum Finite Element (FE) models. Each component of the macro model is assigned a unique tag that is linked to the relevant geometric and structural parameters. The CAE model integrity is maintained through the use of the common data model (CDM) concept and object-oriented programming. The relevant algorithms are implemented in Rhinoceros 3D using RhinoCommon, a .NET software development kit. Once the CAE macro model is generated, it is introduced to the OpenSees computational platform for structural analysis. The algorithmic framework is demonstrated using two case structures: a prefabricated timber beam with standard geometry and a free-form timber plate arch. The results are verified with measurements from physical experiments and FE models, where the time needed to convert thousands of CAD assemblies to the corresponding CAE models for response simulation is considerably reduced.
Highlights
Spurred by the proliferation of interactive modeling tools and visual programming languages, the Computer-Aided Design (CAD) framework and digital geometry processing have facilitated the design of spatial timber plate structures with complex geometries
It is observed that the responses from the macro model are closer to that of the experimental results when compared to the Finite Element (FE) model
The element formulation in the macro model is such that the rigidity is concentrated in a specific number of discrete and uncoupled beam and springs elements [22], which leads to errors in large-scale Integrally-Attached Timber Plate (IATP) structures
Summary
Spurred by the proliferation of interactive modeling tools and visual programming languages, the Computer-Aided Design (CAD) framework and digital geometry processing have facilitated the design of spatial timber plate structures with complex geometries. To understand the structural performance of such systems, especially in terms of their functionality, numerical simulations are generally employed to simulate the structural response. Numerical models that include the geometrical and mechanical properties of the system under consideration are generally described as Computer-Aided Engineering (CAE) models. CAD and CAE models for spatial timber plate structures are constructed in different environments.
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
