系杆拱桥的主要受力构件中,吊杆的安全与否是影响桥梁运营质量的关键因素。文章通过快速检测该类桥梁的吊杆的第一、二阶频率,吊杆的计算长度,并结合相应的索力测试公式计算吊杆张力,进而推断桥梁结构是否存在安全隐患,通过对吴中区尹山大桥辅助加强吊杆的实例测试与监测,表明该方法实用可行,可供同行参考。 The main force components of the tied arch bridge, the safety of the boom is a key factor affecting the quality of the bridge operation. In this paper, by quickly detecting the first and second order frequencies of the boom of this type of bridge and the calculated length of the boom, the boom tension is calculated with the corresponding cable force test formula to infer whether there is a potential safety hazard in the bridge structure. District Yin Shan Bridge auxiliary strengthening boom test and monitoring examples show that the method is practical and feasible for peer reference.