等截面长柱的配筋率,常由起吊弯矩控制。因此,探讨同吊装施工受力相符,并能指导施工的计算方法,力求节省配筋,保证安全,是施工结构计算的重要课题之一。等截面长柱多点吊装的吊点选择和内外力计算方法,以往有以下几种:1.视构件在水平状态,按连续梁近似求解;2.按构件在水平位置,考虑吊索滑轮阻力为零,用平衡 Reinforcement ratio of long columns of constant cross section is often controlled by the lifting moment. Therefore, it is one of the important topics in the calculation of construction structure to explore the calculation method which is in line with the force of the hoisting construction and can guide the construction, so as to save the reinforcement and ensure the safety. In the past, there are the following kinds of methods: 1. Depending on the component in the horizontal state, it is approximated by the continuous beam; 2. According to the component in the horizontal position, consider the resistance of the sling pulley To zero, with balance