Shape memory alloy vibration damping lazy halyard apparatus for suspension bridge

The utility model relates to a shape memory alloy vibration damping lazy halyard apparatus for suspension bridge, belonging to the wind resistance, vibration resistance and damping technical field of bridge engineering. The utility model comprises a lazy halyard, a shape memory alloy wire, a hoop connected with an outer sleeve of the suspension bridge main cable, lazy halyard and shape memory alloy wire exterior hoops, a connecting bolt rod of the main cable exterior sleeve hoop, a connecting bolt hole part of the main cable exterior sleeve hoop, lazy halyard and shape memory alloy wire connection components, and lazy halyard and main beam anchoring terminal components. The lazy halyard and the shape memory alloy wire are connected with the suspension bridge main cable by connecting components with different arrangement forms, thereby improving the integral anti-torsion rigidity of the bridge, meanwhile, the shape memory alloy wire has characteristics of shape memory effect and superelasticity effect under the condition that the suspension bridge main cable and the lazy halyard generate deforming to perform the vibration damping energy consumption, thereby further alleviating the vibration of the bridge, the utility model is especially suitable for energy consumption damping under the actions of hurricane and strong shock. The apparatus has advantages of simple structure, convenient mounting and obvious effect.