Method and device for testing corrosion fatigue of welding nodes of orthotropic steel bridge deck

• Main Authors: YE XIAOWEI, SU YOUHUA, SONG CHENSHU
• Format: Patent
• Language: Chinese; English
• Published: 15.10.2019
• Subjects: ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVEREDIN A SINGLE OTHER SUBCLASS; INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR; PHYSICS; TARIFF METERING APPARATUS; TESTING

The invention discloses a method and a device for testing corrosion fatigue of welding nodes of an orthotropic steel bridge deck. The method comprises: 1) assembling a corrosion environment box, manufacturing a long cross welding test piece and arranging a fiber grating sensor; 2) performing a fatigue test on the long cross welding test piece; 3) carrying out a long cross welding test piece corrosion test; 4) establishing a time matching relation of a corrosion-fatigue coupling action process; 5) installing a corrosion environment box and a water mist releaser; 6) long cross welding test piececorrosion-fatigue coupling test data acquisition. The device constructed according to the method comprises the long cross welding test piece, the corrosion environment box, the water mist releaser, afatigue testing machine, a monitoring device and corrosion paste. A device used for executing the method provided by the invention is also provided. According to the method, coupling effect of corrosive media and alternating