This paper looks indeed weird: 10.1142/S1793431120500013. The content is (kinda) okay: alternative alloy for RC cylindrical bridge pier which helps bridge by flexibly cope with seismic load. But the problem is in the list of authors. The last listed author (Nailiang Xiang) uses email address of supposedly another person (Ko Noryo).
Those two are actually the same person. It is his Japanese pseudonym. What gives