Research Article

Experimental Verification of Applying Active Control Method as Virtual Support for Relief Bridge

Table 2

Materials and specification of reduced scale of this test.

CategoryMaterialsSpecificationQuantity

Control mechanismRC servoSize of torque: 250 N·cm
Angle control accuracy of RC servo: 1.2°
2
Cantilever armLength between the connection of fixed steel tendon and anchor point: 50 mm
Material: polylactic acid (PLA), manufactured by 3D printing
2
Polyethylene line (PE)Tensile strength: 250 N1

Model of bridgeBridge deckSize: length = 1100 mm, width = 120 mm, thickness = 15 mm, moment of inertia of area = 
Material: polypropylene plastic sheet, polypropylene (PP); Young’s modulus is between 1300 and 1800 ()
1
Anchor seatSize: length = 120 mm, width = 30 mm, thickness = 20 mm
Material: aluminum alloy metal block; Support type: simple support
2

SensorDisplacement meterResistive type1
ControllerMicrocontroller unit (MCU)Arduino Nano V31