Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
A high energy dissipation self-resetting beam-column joint based on shape memory alloy screws comprises a beam end assembly, a column end assembly, an energy-dissipating element, a self-resetting element and a shear-resistant element. The energy-dissipating element is made of a low-strength high-energy-dissipation steel angle, and two limbs of the steel angle are connected with a column flange and a beam flange through high-strength bolts, respectively. The self-resetting element is made of a shape memory alloy screw having super elasticity, one end of the screw is connected with a column, and the other is connected with a beam. The shear-resistant element is made of a double-side shear-resistant plate having an elongated bolt hole. The shape memory alloy screw needs to be applied initial prestress to ensure that the screw is constantly stressed during operating. The invention further provides a method of thermally treating and training the shape memory alloy screw and a method of applying the initial prestress to the shape memory alloy screw. The invention has the advantages that higher initial screw prestress may be applied, initial rigidity is higher, self-resetting capacity is excellent, and hysteretic energy capacity is better.
A high energy dissipation self-resetting beam-column joint based on shape memory alloy screws comprises a beam end assembly, a column end assembly, an energy-dissipating element, a self-resetting element and a shear-resistant element. The energy-dissipating element is made of a low-strength high-energy-dissipation steel angle, and two limbs of the steel angle are connected with a column flange and a beam flange through high-strength bolts, respectively. The self-resetting element is made of a shape memory alloy screw having super elasticity, one end of the screw is connected with a column, and the other is connected with a beam. The shear-resistant element is made of a double-side shear-resistant plate having an elongated bolt hole. The shape memory alloy screw needs to be applied initial prestress to ensure that the screw is constantly stressed during operating. The invention further provides a method of thermally treating and training the shape memory alloy screw and a method of applying the initial prestress to the shape memory alloy screw. The invention has the advantages that higher initial screw prestress may be applied, initial rigidity is higher, self-resetting capacity is excellent, and hysteretic energy capacity is better.
High energy dissipation self-resetting beam-column joint and methods based on shape memory alloy screws
20.01.2016
Patent
Elektronische Ressource
Englisch
IPC:
E04B
Allgemeine Baukonstruktionen
,
GENERAL BUILDING CONSTRUCTIONS
Rotary friction energy dissipation self-resetting fabricated beam-column joint
| Europäisches Patentamt | 2024
Self-resetting friction energy dissipation steel frame joint based on shape memory alloy
| Europäisches Patentamt | 2020
| Europäisches Patentamt | 2024
Self-resetting steel beam column joint with composite energy dissipation mechanism
| Europäisches Patentamt | 2022
Rotational friction energy dissipation type self-resetting fabricated beam-column joint
| Europäisches Patentamt | 2021