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Galvanized steel strand details

2018-04-28 20:48:39

zmjt053 carbon steel surface can be added according to the needs of galvanized layer, zinc aluminum alloy layer, aluminum clad layer, copper plating layer, epoxy coated and so on.

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Galvanized steel strand classification The most commonly used steel strand is galvanized steel strand and prestressed steel strand, commonly used prestressed steel strand diameter in the range of 9.53mm-17.8mm, there are a small number of larger diameter steel strand. The steel wire in each prestressed steel strand is generally 7, there are 2, 3 and 19, and there can be a metal or non-metal anti-corrosion layer on the steel wire. HDPE coated with anti-corrosion grease or paraffin wax is called unbonded prestressed steel strand.

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Galvanized steel strand is usually used for messenger wire, guy wire, core wire or strength member, etc. It can also be used as an earth wire/ground wire for overhead transmission, a barrier cable on both sides of a highway, or a structure cable in a building structure. The commonly used prestressed steel strand in prestressed steel strand is uncoated low-relaxation prestressed concrete (uncoated steel strand for prestressed concrete), and there are also galvanized (galvanized), often used in Bridges, construction, water conservancy, energy and geotechnical engineering, etc. unbonded steel strand (unbonded steel strand or monostrand) is commonly used in floor and foundation works.

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Technical analysis of galvanized steel strand prestressed tension design control tension of steel strand is the tension of steel strand in front of anchor fixture after the completion of prestressed tension. Therefore, in the calculation of the theoretical elongation of the prestressed tension of the strand, the distance between the anchoring points at both ends of the strand should be taken as the calculated length of the strand, but the control tension of the strand during the prestressed tension is controlled at the anchor of the jack tool, so for the convenience of control and calculation, the distance between the anchoring points at both ends of the strand is generally taken as the distance between the anchoring points of the strand. In addition, the working length of the strand in the tension jack is used as the calculated length of the theoretical extension of the prestressed tension of the strand. In the prestressed tension of the strand, most of the exposed part of the strand is wrapped by the anchor and jack, the tensile length of the strand can not be directly measured on the strand, so it can only be measured by the piston stroke of the tension jack to calculate the tensile length of the strand, but at the same time, the anchor plug shrinkage during the whole tensioning process of the strand should be reduced. The carrying capacity of the steel strand should be 4-6 times the total tractive force.

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This information comes from experience

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