A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Development of a Eurocode-based design method for local and distortional buckling for cold-formed C-sections encased in ultra-lightweight concrete under compression
https://orcid.org/0000-0002-8017-403X
Highlights Present an innovative design procedure for encased cold-formed steel sections elements based on Eurocode specifications, using the effective width method. The new design is based on an analytical and numerical basis, incorporating the continuous bracing action of the encasing material, representing it with an elastic half-space, similar to sandwich beam theory. Close-form equations were derived to calculate the encased cold-formed steel sections local and distortional critical stresses. The applicability of the new design was demonstrated using a new set of experimental data in addition to previously published ones. Results showed that the trend of calculated and measured results are matching and the proposed design method is able give nice predictions that closely correspond to the experimental tests.
Abstract An innovative direction in the field of light-gauge building systems has been presented in recent years when the cold formed steel (CFS) C-sections are encased in an ultra-lightweight material. The advantages of the two materials are integrated, resulting in a unique complex structure in which the encasing material provides heat insulation and fire protection. In addition, this material supports the CFS parts, which leads to an increase in their resistance to stability failures. This paper presents an innovative design procedure for encased CFS elements based on the specifications of Eurocode by applying the effective width method. The new design is based on analytical and numerical basis, incorporating the continuous bracing action of the encasing material by an elastic half-space-model, similar to sandwich beam theory. Close-form equations are derived to calculate the encased CFS's local and distortional critical stress. Furthermore, the applicability of the new design is demonstrated using a large set of experimental data of newly tested members and previously published ones. Results show that the trend of calculated and measured results matches well, making the proposed design method applicable in the investigated domain.
Development of a Eurocode-based design method for local and distortional buckling for cold-formed C-sections encased in ultra-lightweight concrete under compression
https://orcid.org/0000-0002-8017-403X
Highlights Present an innovative design procedure for encased cold-formed steel sections elements based on Eurocode specifications, using the effective width method. The new design is based on an analytical and numerical basis, incorporating the continuous bracing action of the encasing material, representing it with an elastic half-space, similar to sandwich beam theory. Close-form equations were derived to calculate the encased cold-formed steel sections local and distortional critical stresses. The applicability of the new design was demonstrated using a new set of experimental data in addition to previously published ones. Results showed that the trend of calculated and measured results are matching and the proposed design method is able give nice predictions that closely correspond to the experimental tests.
Abstract An innovative direction in the field of light-gauge building systems has been presented in recent years when the cold formed steel (CFS) C-sections are encased in an ultra-lightweight material. The advantages of the two materials are integrated, resulting in a unique complex structure in which the encasing material provides heat insulation and fire protection. In addition, this material supports the CFS parts, which leads to an increase in their resistance to stability failures. This paper presents an innovative design procedure for encased CFS elements based on the specifications of Eurocode by applying the effective width method. The new design is based on analytical and numerical basis, incorporating the continuous bracing action of the encasing material by an elastic half-space-model, similar to sandwich beam theory. Close-form equations are derived to calculate the encased CFS's local and distortional critical stress. Furthermore, the applicability of the new design is demonstrated using a large set of experimental data of newly tested members and previously published ones. Results show that the trend of calculated and measured results matches well, making the proposed design method applicable in the investigated domain.
Development of a Eurocode-based design method for local and distortional buckling for cold-formed C-sections encased in ultra-lightweight concrete under compression
https://orcid.org/0000-0002-8017-403X
Highlights Present an innovative design procedure for encased cold-formed steel sections elements based on Eurocode specifications, using the effective width method. The new design is based on an analytical and numerical basis, incorporating the continuous bracing action of the encasing material, representing it with an elastic half-space, similar to sandwich beam theory. Close-form equations were derived to calculate the encased cold-formed steel sections local and distortional critical stresses. The applicability of the new design was demonstrated using a new set of experimental data in addition to previously published ones. Results showed that the trend of calculated and measured results are matching and the proposed design method is able give nice predictions that closely correspond to the experimental tests.
Abstract An innovative direction in the field of light-gauge building systems has been presented in recent years when the cold formed steel (CFS) C-sections are encased in an ultra-lightweight material. The advantages of the two materials are integrated, resulting in a unique complex structure in which the encasing material provides heat insulation and fire protection. In addition, this material supports the CFS parts, which leads to an increase in their resistance to stability failures. This paper presents an innovative design procedure for encased CFS elements based on the specifications of Eurocode by applying the effective width method. The new design is based on analytical and numerical basis, incorporating the continuous bracing action of the encasing material by an elastic half-space-model, similar to sandwich beam theory. Close-form equations are derived to calculate the encased CFS's local and distortional critical stress. Furthermore, the applicability of the new design is demonstrated using a large set of experimental data of newly tested members and previously published ones. Results show that the trend of calculated and measured results matches well, making the proposed design method applicable in the investigated domain.
Development of a Eurocode-based design method for local and distortional buckling for cold-formed C-sections encased in ultra-lightweight concrete under compression
Alabedi, Ahmed (author) / Hegyi, Péter (author)
Thin-Walled Structures ; 196
2023-12-16
Article (Journal)
Electronic Resource
English
Distortional Buckling of Cold-Formed Stainless Steel Compression Members
| British Library Conference Proceedings | 2000
Distortional Buckling of Cold-Formed Stainless Steel Compression Members
| British Library Conference Proceedings | 2000