Advanced Connection Techniques for Cold-Formed Steel Structures

Ensuring the integrity in clinching process

“…Lepistö et al [11] have successfully shown the accuracy of FE analysis while carefully verifying the material properties and friction coefficients. On the other hand, for limited cases, simple equations for calculating the strength of clinched joint or several joints have been generated by Pedreschi et al [12,13] and Davies [14]. The main problems encountered in the mathematical analyses of clinch joints are the difficulties related to the accuracy of predicting the behaviour of the joined materials, the exact material properties and the dimensions at different locations of the joint area.…”

Strength and behaviour of cold-formed steel offset trusses

“…Notwithstanding, various layout patterns using selfdrilling screws are the primary means of fastening CFS members in the residential construction industry [5]. Although welding is sometimes used, it shows a great disadvantage for pre-galvanized cold-formed steel since it can destroy the galvanizing which is applied to cold-formed steel to resist corrosion [6].…”

Economics of clinched joint compared to riveted joint and example of applying calculations to a volume product

“…a clinch joint. The means to determine the strength of a joint by calculations presented in literature [4][5][6][7] has proven to be case and material specific. Consequently, the exact strength of a joint can be found out only by destructive tests [8].…”