Currently, the use of cold-formed thin steel structures is prevalent in our country, including common applications such as purlins, roof panels, bracing, and various structures like single-story frames, multi-story frames, roof structures, and Zamil steel frames. Due to their thin profile characteristics, which include various types of cold-formed steel and shaped cold-formed sheeting, these structures differ from conventional ones. As a result, conventional elasticity theories and design calculation methods for steel structures are not applicable in this case. The increase in yield strength and tensile strength, as well as the reduction in material stiffness, directly depend on the extent of the cold-forming process. This is determined based on experiments involving the tensile compression of materials when the curved shape returns to an unloaded state during the consolidation phase. However, in some cases where there is no experimental validation, one can refer to calculation methods outlined in the American standards (AISI) to assess the enhanced properties of strength due to this cold-forming stiffness. The article presents a specific survey for the cold-formed C-section profile. Keywords: Cold-formed thin steel; yield strength; tensile strength; cold-formed C-section.
Lọc theo danh mục
Lượt truy cập :
22,509,097
Xem toàn văn