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Experimental Testing of Centrically Compressed Cold-Formed Steel Members with Web Holes
https://orcid.org/http://orcid.org/0000-0002-2808-2664
https://orcid.org/http://orcid.org/0000-0002-7622-7936
https://orcid.org/http://orcid.org/0000-0002-4535-1379
In this paper, the experimental investigation of centrically compressed cold-formed steel members with web holes was outlined. Compression tests were conducted on 4 columns with two web holes and 4 columns with three web holes. Furthermore, two different cross-sections were taken into account. Hinged boundary conditions around major bending axis of tested elements were designed in order to achieve the desired type of connection with the testing equipment. With the aim of proper definition of material behavior and initial geometric imperfections of tested elements in subsequent numerical analyzes, material testing and geometry control were carried out prior to the experimental tests. Material tests were performed on flat and corner coupons, while the non-contact geometry control was conducted using the optical 3D scanner. For each type of specimens, nonlinear shell finite element simulations were carried out, providing good agreement with the experimental results. The failure of tested specimens is manifested mainly due to local, distortional or flexural buckling, occurring almost instantly, without prior warning. However, the pre- and post-buckling behavior slightly differs, depending on the members’ type of cross-section, which could be attributed to the different buckling load ratio around the two cross-sectional axes of the tested specimens.
Experimental Testing of Centrically Compressed Cold-Formed Steel Members with Web Holes
https://orcid.org/http://orcid.org/0000-0002-2808-2664
https://orcid.org/http://orcid.org/0000-0002-7622-7936
https://orcid.org/http://orcid.org/0000-0002-4535-1379
In this paper, the experimental investigation of centrically compressed cold-formed steel members with web holes was outlined. Compression tests were conducted on 4 columns with two web holes and 4 columns with three web holes. Furthermore, two different cross-sections were taken into account. Hinged boundary conditions around major bending axis of tested elements were designed in order to achieve the desired type of connection with the testing equipment. With the aim of proper definition of material behavior and initial geometric imperfections of tested elements in subsequent numerical analyzes, material testing and geometry control were carried out prior to the experimental tests. Material tests were performed on flat and corner coupons, while the non-contact geometry control was conducted using the optical 3D scanner. For each type of specimens, nonlinear shell finite element simulations were carried out, providing good agreement with the experimental results. The failure of tested specimens is manifested mainly due to local, distortional or flexural buckling, occurring almost instantly, without prior warning. However, the pre- and post-buckling behavior slightly differs, depending on the members’ type of cross-section, which could be attributed to the different buckling load ratio around the two cross-sectional axes of the tested specimens.
Experimental Testing of Centrically Compressed Cold-Formed Steel Members with Web Holes
https://orcid.org/http://orcid.org/0000-0002-2808-2664
https://orcid.org/http://orcid.org/0000-0002-7622-7936
https://orcid.org/http://orcid.org/0000-0002-4535-1379
In this paper, the experimental investigation of centrically compressed cold-formed steel members with web holes was outlined. Compression tests were conducted on 4 columns with two web holes and 4 columns with three web holes. Furthermore, two different cross-sections were taken into account. Hinged boundary conditions around major bending axis of tested elements were designed in order to achieve the desired type of connection with the testing equipment. With the aim of proper definition of material behavior and initial geometric imperfections of tested elements in subsequent numerical analyzes, material testing and geometry control were carried out prior to the experimental tests. Material tests were performed on flat and corner coupons, while the non-contact geometry control was conducted using the optical 3D scanner. For each type of specimens, nonlinear shell finite element simulations were carried out, providing good agreement with the experimental results. The failure of tested specimens is manifested mainly due to local, distortional or flexural buckling, occurring almost instantly, without prior warning. However, the pre- and post-buckling behavior slightly differs, depending on the members’ type of cross-section, which could be attributed to the different buckling load ratio around the two cross-sectional axes of the tested specimens.
Experimental Testing of Centrically Compressed Cold-Formed Steel Members with Web Holes
Lecture Notes in Civil Engineering
Ha-Minh, Cuong (editor) / Pham, Cao Hung (editor) / Vu, Hanh T. H. (editor) / Huynh, Dat Vu Khoa (editor) / Živaljević, Vladimir (author) / Džolev, Igor (author) / Rašeta, Andrija (author)
International Conference series on Geotechnics, Civil Engineering and Structures ; 2024 ; Ho Chi Minh City, Vietnam
2024-06-01
8 pages
Article/Chapter (Book)
Electronic Resource
English
Cold-formed steel , Experimental testing , Buckling , Compression load , Nonlinear structural analysis Engineering , Geoengineering, Foundations, Hydraulics , Sustainable Development , Sustainable Architecture/Green Buildings , Cyber-physical systems, IoT , Professional Computing , Structural Materials
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