Construction process of prestressed pipe pressure slurry attention skills

Prestressed pipe pressure slurry prestressed pipe pulp pulp price of prestressed tensioning construction process of prestressed pipe pressure with machines and equipment and instrument should comply with the prestressed pipe pressure slurry to the following provisions: 1 prestressed tensioning appropriate USES double-acting jack wear heart type, the overall tension or put Zhang Yi use which has the function of the anchor jack; 2 times. Level 0. Tensioning machine equipment should be with the wrong product, and should be calibrated before use, testing and calibration. 2 tension with jack, with pressure gauge should be necessary calibration, the calibration should be authorized by the state of the statutory measurement technology on a regular basis, calibration when jack piston direction should be consistent with the actual tension condition. When is in one of the following circumstances, prestressed slurry pipeline pressure should be to calibrate 1) Use time more than 6 months. 2) Tensioning number more than 300 times; 3) Jack in the use of the abnormal situation or pressure gauge; 4) After jack repair or replacement parts. 3 using force transducer measuring tension, strain sensors should be according to the provisions of the relevant national standard inspection once every year. 2 before prestressing, the preparation of construction site and structure or component must meet the requirements of the prestressed pipe pressure slurry shall meet the following requirements 1 construction site has approved the tensioning order, tensioning procedure and construction work instruction, through training to master prestressed construction knowledge and correct operation of the 'personnel, operation personnel and equipment, and can guarantee safe protective measures. Two installed correctly, or component has reached the requirement of concrete structure strength and 弾 modulus ( Or age) 。