Anti-sliding experiment study on cable clamp of west sunroof in Hangzhou Century Center
The cable clamp is an important joint member connecting the cable with other components in the prestressed cable structure.If there is a slip between the cable clamp and the cable,there will be a great loss of prestress and the mechanical performance of the structure will even be changed.The west sunroof in Hangzhou Century Center uses box truss+steel cable structure.The particularity of the structure determines the different state of the cable during the tensioning construction and after construction.In other words,the cable is required to slide relative to the cable clamp during tensioning construction,and the relative position of the cable and the cable clamp is required to be locked after construction,so that sliding is not allowed.The friction between the cable clamp and the cable is determined by simulating the whole process of the three stages of the cable tensioning construction,the attenuation of the fastening force of the high strength bolt and the jacking of the cable clip.The test results show that the friction of the cable clamp on the cable body is small during the tension stage of the cable construction,and the friction loss at the joint of the cast steel cable clamp can be effectively reduced by using the zinc plate cushion,so as to ensure the effective transmission of cable force during the tension process.The fastening force loss can not be ignored within 12 hours after the final screw of high strength bolt.The anti-slip bearing capacity of the cable clamps can ensure the structural safety of the cable clamp nodes.
cable clampcable structureanti-sliding performanceanti-sliding experimentfastening force
万方数据
维普
