随着预应力混凝土新型结构的不断出现,生产技术的不断提高,预应力筋的张拉工序已逐步成为专业性工作。操作人员不仅要熟习张拉工序,钢筋性能,夹锚具的应用,还应该具备使用操作和维护好对预应力筋施加张拉力的专用设备。目前,采用的张拉设备有机槭张拉、电热张拉等,但应用最广泛的还是液压机械张拉。 With the continuous emergence of new structures of prestressed concrete and continuous improvement of production technology, the tensioning process of prestressed tendons has gradually become a professional work. Operators should not only be familiar with the tensioning process, reinforcement performance, and application of anchorages, but also should have special equipment for operation and maintenance to exert tension on prestressed tendons. At present, the tensioning equipment used for organic tensioning, electric tensioning, etc., but the most widely used hydraulic mechanical tensioning.