在现有的计算方法中,都是将桥式起重机的主梁简化成简支梁来计算的。本文则将整体桥架简化成“板架模型”,用力法求解;同时还探讨了载荷位移简化计算的规律。计算和实验表明,用板架模型算得的结果比简支梁更接近于实测值。 In the existing calculation methods, the main girder of a bridge crane is simplified as a simple girder to calculate. In this paper, the whole bridge is simplified as a “pallet model” and solved by force method. Meanwhile, the law of simplified calculation of load displacement is also discussed. Calculations and experiments show that the results calculated by the plate model are closer to the measured values ​​than those of simply supported beams.