发明名称 |
SPANNVORRICHTUNG ZUM SPANNEN VON LITZEN- ODER RUNDEISENKABELN IN SPANNBETONSTRUKTUREN |
摘要 |
A jack for tensioning cables in prestressed concrete structures, is made to react on the distribution plate with one member of a cylinder-piston system, the other member engaging the strands or wires of the cable to tension them by the lengthening of such cylinder-piston system. The strands pass through the variable-volume chamber of the cylinder-piston system inside guide pipes sliding in one of the members and engaging the other. |
申请公布号 |
DE3121239(A1) |
申请公布日期 |
1982.05.27 |
申请号 |
DE19813121239 |
申请日期 |
1981.05.27 |
申请人 |
MACCHI, ROMUALDO, PISA, IT |
发明人 |
MACCHI, ROMUALDO, PISA, IT |
分类号 |
E04G21/12;(IPC1-7):04G21/12 |
主分类号 |
E04G21/12 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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