A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Monotonic and Cyclic Behaviour of Bolted High-Strength Steel T-Stubs
https://orcid.org/http://orcid.org/0000-0003-0822-743X
https://orcid.org/http://orcid.org/0000-0001-8727-9806
Semi-rigid connections using bolts have attracted continued research efforts due to their widespread applications in steel construction, and bolted T-stub is a fundamental component whose behaviour is of the outmost importance to various semi-rigid connections. Current steel design standards generally cover those structural steels with a nominal yield strength not higher than 460 MPa. In order to extend the connection design practice to higher strength steels, both monotonic and cyclic axial loading tests on 690 MPa steel T-stubs were conducted to evaluate their strength, ductility and energy dissipation capacity. It was found from the monotonic force-deformation curves that the current method in Eurocode 3 Part 1–8 still arrives at acceptable prediction on plastic resistance. Based on the force–deformation hysteretic curves from the cyclic tests, cumulative energy dissipation capacities were analyzed, and its was found that an optimal β ratio between the plastic resistances of Mode 1 (neglecting the influence of bolt action on a finite contact area) and Mode 3 in Eurocode 3 Part 1–8 could be 0.3 for those bolted T-stubs to maximize cumulative energy dissipation. Equations to predict the low-cycle fatigue and cumulative energy dissipation capacity, respectively, were proposed as well.
Monotonic and Cyclic Behaviour of Bolted High-Strength Steel T-Stubs
https://orcid.org/http://orcid.org/0000-0003-0822-743X
https://orcid.org/http://orcid.org/0000-0001-8727-9806
Semi-rigid connections using bolts have attracted continued research efforts due to their widespread applications in steel construction, and bolted T-stub is a fundamental component whose behaviour is of the outmost importance to various semi-rigid connections. Current steel design standards generally cover those structural steels with a nominal yield strength not higher than 460 MPa. In order to extend the connection design practice to higher strength steels, both monotonic and cyclic axial loading tests on 690 MPa steel T-stubs were conducted to evaluate their strength, ductility and energy dissipation capacity. It was found from the monotonic force-deformation curves that the current method in Eurocode 3 Part 1–8 still arrives at acceptable prediction on plastic resistance. Based on the force–deformation hysteretic curves from the cyclic tests, cumulative energy dissipation capacities were analyzed, and its was found that an optimal β ratio between the plastic resistances of Mode 1 (neglecting the influence of bolt action on a finite contact area) and Mode 3 in Eurocode 3 Part 1–8 could be 0.3 for those bolted T-stubs to maximize cumulative energy dissipation. Equations to predict the low-cycle fatigue and cumulative energy dissipation capacity, respectively, were proposed as well.
Monotonic and Cyclic Behaviour of Bolted High-Strength Steel T-Stubs
https://orcid.org/http://orcid.org/0000-0003-0822-743X
https://orcid.org/http://orcid.org/0000-0001-8727-9806
Semi-rigid connections using bolts have attracted continued research efforts due to their widespread applications in steel construction, and bolted T-stub is a fundamental component whose behaviour is of the outmost importance to various semi-rigid connections. Current steel design standards generally cover those structural steels with a nominal yield strength not higher than 460 MPa. In order to extend the connection design practice to higher strength steels, both monotonic and cyclic axial loading tests on 690 MPa steel T-stubs were conducted to evaluate their strength, ductility and energy dissipation capacity. It was found from the monotonic force-deformation curves that the current method in Eurocode 3 Part 1–8 still arrives at acceptable prediction on plastic resistance. Based on the force–deformation hysteretic curves from the cyclic tests, cumulative energy dissipation capacities were analyzed, and its was found that an optimal β ratio between the plastic resistances of Mode 1 (neglecting the influence of bolt action on a finite contact area) and Mode 3 in Eurocode 3 Part 1–8 could be 0.3 for those bolted T-stubs to maximize cumulative energy dissipation. Equations to predict the low-cycle fatigue and cumulative energy dissipation capacity, respectively, were proposed as well.
Monotonic and Cyclic Behaviour of Bolted High-Strength Steel T-Stubs
Lecture Notes in Civil Engineering
Mazzolani, Federico M. (editor) / Piluso, Vincenzo (editor) / Nastri, Elide (editor) / Formisano, Antonio (editor) / Hu, Fangxin (author) / Wang, Zhan (author)
International Conference on the Behaviour of Steel Structures in Seismic Areas ; 2024 ; Salerno, Italy
2024-07-03
11 pages
Article/Chapter (Book)
Electronic Resource
English
Monotonic and cyclic analysis of bolted T-stubs
| British Library Conference Proceedings | 2000
Modelling of the Cyclic Behaviour of Bolted Tee-Stubs
| British Library Conference Proceedings | 1999
Cyclic behaviour of bolted T-stubs: Experimental analysis and modelling
| British Library Conference Proceedings | 2000