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New design approaches for tension, shear and interaction resistance of carbon steel bolts
Abstract More economical and statistically verified design approaches for carbon steel bolts are presented based on an extensive literature review and own systematical experimental investigations into the tension, shear and interaction resistance of carbon steel bolts conducted at the Institute for Metal and Lightweight Structures of the University of Duisburg-Essen, Germany. Herein, reliability analyses according to EN 1990, Annex D were carried out and confirmed that an increase of the reduction factor to k2 = 1.0 for the tension resistance Ft,Rd is in principle possible. Regarding the shear resistance of carbon steel bolts, simplified but more economical shear coefficients a independent of the position of the shear plane are proposed. Finally, newly design equations for the interaction resistance of carbon steel bolts are proposed, which are in line with the new interaction formulations developed by Stranghöner/Abraham and implemented in prEN 1993–1-4 and abZ/abG Z-30.3-6 for stainless steel bolts. The new interaction concept provides a more economical design compared to EN 1993–1-8/prEN 1993–1-8 and serves to harmonise the European design rules between carbon and stainless steel.
Graphical abstract Display Omitted
Highlights Various experimental investigations are not included in EN 1993–1-8/prEN 1993–1-8. Experimental studies and a literature review on bolts have been carried out. Reliability analyses were conducted to prove gM2 = 1.25 for connections. More economical design rules compared to EN 1993–1-8/prEN 1993–1-8 were developed. Harmonisation of the European design rules between carbon and stainless steel bolts.
New design approaches for tension, shear and interaction resistance of carbon steel bolts
Abstract More economical and statistically verified design approaches for carbon steel bolts are presented based on an extensive literature review and own systematical experimental investigations into the tension, shear and interaction resistance of carbon steel bolts conducted at the Institute for Metal and Lightweight Structures of the University of Duisburg-Essen, Germany. Herein, reliability analyses according to EN 1990, Annex D were carried out and confirmed that an increase of the reduction factor to k2 = 1.0 for the tension resistance Ft,Rd is in principle possible. Regarding the shear resistance of carbon steel bolts, simplified but more economical shear coefficients a independent of the position of the shear plane are proposed. Finally, newly design equations for the interaction resistance of carbon steel bolts are proposed, which are in line with the new interaction formulations developed by Stranghöner/Abraham and implemented in prEN 1993–1-4 and abZ/abG Z-30.3-6 for stainless steel bolts. The new interaction concept provides a more economical design compared to EN 1993–1-8/prEN 1993–1-8 and serves to harmonise the European design rules between carbon and stainless steel.
Graphical abstract Display Omitted
Highlights Various experimental investigations are not included in EN 1993–1-8/prEN 1993–1-8. Experimental studies and a literature review on bolts have been carried out. Reliability analyses were conducted to prove gM2 = 1.25 for connections. More economical design rules compared to EN 1993–1-8/prEN 1993–1-8 were developed. Harmonisation of the European design rules between carbon and stainless steel bolts.
New design approaches for tension, shear and interaction resistance of carbon steel bolts
Stranghöner, Natalie (Autor:in) / Abraham, Christoph (Autor:in) / Ehrhardt, Lukas (Autor:in)
01.10.2023
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
Improved Design Rules for Stainless and Carbon Steel Bolts Loaded in Tension and Shear
| Wiley | 2023