(1.上海市青浦区道路运输管理事务中心， 上海市 201799;
张智力（1989—）， 男， 本科， 工程师， 从事道路桥梁技术管理工作。
Taking the detection and evaluation of a low-pylon cable-stayed bridge in in-service rail transit as an example, the loading features of the low-pylon cable-stayed bridge are analyzed and the key points of the regular inspection of the low-pylon cable-stayed bridge are determined. The measurement of the dead-load geometry of the main girder, main pylon and pier column shows that the low-pylon cable-stayed bridge remains stable as a whole, and there is a tendency to settle in the middle of main girder. The dynamic features and dynamic response of the bridge are defined through the tests of natural vibration characteristics, stayed cable force and dynamic displacement of the bridge. Through the visual inspection, the defects of the concrete structure of the main girder and the main pylon, and the present situation of the anchor head of the stayed cable are clarified. The inspection process and methods of this project can provide a reference for the inspection and evaluation of similar rail transit bridges.