The Conception and Test of Broken Line Pretensioned Girder Pull Device

In light of the current situation of the development of pretensioned prestressed simple-supported girder in China, the conception of broken line pretensioned girder pull device available to Chinese situation has been put forward. A test on the joint between tendon and pull device with three different ways has been performed to check the resistance to friction between pull device and strands. Test data show that the pull device tendon shooting into high-strength socket via the hole may greatly reduce the friction between tendon and pull device. Meanwhile, the simple-structured and practical pull device can meet the needs of actual engineering and can provide useful references to the design and construction of similar structure.