ANCHORAGE FOR FIXING GROUP OF STRESSED ROPES Russian patent published in 2009 - IPC E04C5/12 

FIELD: construction industry.

SUBSTANCE: invention refers to construction of pre-stressed reinforced-concrete structures, and namely protective reinforced-concrete coverings of nuclear power stations and can be used for controlling the operation of stressed groups of ropes during operation of nuclear power station. Anchorage for fixing a group of stressed ropes contains support flange 1 installed on reinforced-concrete housing 4 of building structure and inside which there are fixtures 6 for ropes 7, and cap 10 fixed on flange 1 and intended for protection of ends 11 of ropes 7, having liquid-type pressure gage 15 mounted in upper part of wall of cap 10. Internal cavity of cap 10 is divided into upper 16 and lower 17 sections, the boundary 20 between which is located between level 21 of ends 11 of ropes 7 and flange 1. At that, lower section 17 is intended for filling ropes 7 with paraffin, and upper section 16 with ends 11 of ropes 7 serves for being filled with non-compressible liquid, for example, brake fluid.

EFFECT: providing the possibility of controlling both breakage of rope inside pre-stressed building structure, which is characterised with rope end released from channel former to free volume space under the cap, which thus decreases volume under cap, and possibility of controlling loosened rope at sliding in collet, which is characterised by sinking the rope end in channel former and thus increasing volume space under cap.

3 cl, 3 dwg