FIELD: construction industry. SUBSTANCE: power metal forms may be used in manufacture of prestressed reinforced concrete members. Power metal forms for manufacture of prestressed reinforced concrete structures has power device for producing tensile stresses in closed reinforcement belt made in the form of steel rope wound on steel pins installed in hole of end member. Pins are connected with power device. EFFECT: possibility of manufacture of prestressed reinforced concrete structures round in cross-section plan. 4 dwg
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|
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RU2140511C1 |
