bridge using pc strand

Low relaxation pc strand

ISO 9001:2008, ISO14001:2004 Qualified ;
Low relaxation PC strand application for large-span bridges on railways and highway,rock-soil anchoring project,
multi-story industrial buildings,stadiums,coal mines,domes for nuclear power stations and etc.
Manufacturer comply to standard ASTM A416, BS5896, AS1311, JISG3536, ISO6934, EN10138

Low Relaxation PC Strand

Pc strand production line research

Do the test strand provided by us, when everything is ready. The strand, with the submission of the same level of anchorage design, according to the number of submission anchorage hole, excised four meters length, take the strand to pay attention to observe strand without injury, shall not be welded interface, this strand to use, and then the the the observation room docile humidity to see if contentment test requirements of temperature and humidity, temperature no special requirements for ten to fifteen degrees Celsius, when the temperature and humidity to meet the requirements, you can started doing test should hit the hardness governed in accordance with the specification requirements, static load test can be done to check each line, the upper and lower computer cables are connected when the hardness to meet the requirements be accurate and reliable, strand manufacturers check finished connected first open the computer and intelligent digital acquisition instrument switch, and then into the software, double-click the software icon to enter a user name and password into the software interface, a new test point on the toolbar icon, appearing dialog box, select the type of test tensile test , select the test for static anchoring test, perform scale for prestressing tendons anchor, and then enter the group number of points for this test OK, and then enter the test parameters interface, the interface of the test parameters first input sample parameters and test parameters, test parameters, in "before the input prestressed steel root of the number three, a single specimen nominal cross-sectional area, the actual average ultimate tensile strength, press the Enter key after the input, then the strand three kicks Network cover wear into the testing machine both ends, then the the tension side side of the jack repeated run three times to rule out air, if it is found to have oil spill Tighten the jack extension of load to be cleared, clamping specimen before each sensor channel is cleared.

The devices at both ends of the anchor ring, and then placed along the strand into a parallel state. The tension side device transition plate, anchor device on each strand tension parallel, the elastic compression of the post-mortem tests dial indicator in place so that it just contacts and cleared. Then with a small jack to the prestressing tendons and the initial stress in the tension side, added to the strand tensile strength of the specified value by 10 per cent, three strand initial stress should be consistent and uniform, strand be tight, both ends of the tape measure anchorage folder distance between the points, and then enter it into the test parameters force the length of the bar and press Enter.

 

 

PC Strand Application

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PC Wire and Strand Specialist

PC 2-wire strand,   PC 3-wire Strand,

PC 7-wire strand,   PC 19-wire Strand,

Unbonded PC Strand,   PC wire Manufacturer

Contact us

Add: daqiuzhuan industry area Jinghai,Tianjin 301605,China

TEL:0086-22-2955681 FAX:0086-22-2639851

Email:sales@pc-strand-china.com

MSN: pc-strand-china@hotmail.com