Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Numerical Modelling of Web Crippling Behavior of CFS Lipped Channel Beams
Cold-formed Steel (CFS) lipped channel beams (LCBs), are frequently employed as structural elements for floor joists and bearers in construction. They are usually thin-walled with unstiffened webs and are vulnerable to various types of local and global failures. These failures encompass shear, bending, combination of shear and bending, web crippling and combination of web crippling and bending. Web crippling occurs when these CFS beams are subjected to highly localized loading. The use of finite element (FE) models validated using limited experimental results is a very rapid and economic method to generate large number of results to understand the web crippling behavior of LCBs. Owing to the complex nature of web crippling phenomenon, majority of the literature discusses the use of a quasi-static analysis of FE model based on explicit integration scheme to formulate contact between different parts of the model. But the major challenge of using a quasi-static analysis scheme is to estimate the stable time increment that influence the computational effort and reliability of analysis results. This paper presents the details of a general FEA procedure (using nonlinear static method) and its validation against web crippling test results for different loading cases and flange boundary conditions.
Numerical Modelling of Web Crippling Behavior of CFS Lipped Channel Beams
Cold-formed Steel (CFS) lipped channel beams (LCBs), are frequently employed as structural elements for floor joists and bearers in construction. They are usually thin-walled with unstiffened webs and are vulnerable to various types of local and global failures. These failures encompass shear, bending, combination of shear and bending, web crippling and combination of web crippling and bending. Web crippling occurs when these CFS beams are subjected to highly localized loading. The use of finite element (FE) models validated using limited experimental results is a very rapid and economic method to generate large number of results to understand the web crippling behavior of LCBs. Owing to the complex nature of web crippling phenomenon, majority of the literature discusses the use of a quasi-static analysis of FE model based on explicit integration scheme to formulate contact between different parts of the model. But the major challenge of using a quasi-static analysis scheme is to estimate the stable time increment that influence the computational effort and reliability of analysis results. This paper presents the details of a general FEA procedure (using nonlinear static method) and its validation against web crippling test results for different loading cases and flange boundary conditions.
Numerical Modelling of Web Crippling Behavior of CFS Lipped Channel Beams
Lecture Notes in Civil Engineering
Kumar, Ratnesh (Herausgeber:in) / Bakre, Sachin V. (Herausgeber:in) / Goel, Manmohan Dass (Herausgeber:in) / Krishnan, K. P. Hari (Autor:in) / Kumar, M. V. Anil (Autor:in)
Structural Engineering Convention ; 2023 ; Nagpur, India
24.11.2024
9 pages
Aufsatz/Kapitel (Buch)
Elektronische Ressource
Englisch
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