PRESTRESSING STEEL PROTECTION SHEATH WITH SENSOR, AND METHOD OF MANUFACTURING THE SAME

PROBLEM TO BE SOLVED: To enable a sensor to be protected from concrete pressure while the sensor can be attached from the outside.SOLUTION: A sheath body 2, which is molded in a spiral irregular shape, into which prestressing steel is inserted and into which grout is injected, is provided with a fil...

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Bibliographische Detailangaben
Hauptverfasser:	FUJINAMI YASUO, KASHIMA YOSHIHIRO, IKEDA HIDEKI, SHIBABE NOBUTERU, JIKO ATSUSHI, OKUBO TAKAYUKI, MAEKAWA SHOKI, HIRATA ATSUSHI
Format:	Patent
Sprache:	eng ; jpn
Schlagworte:	ASSEMBLY OF BRIDGES BUILDING BUILDING IMPLEMENTS OR OTHER BUILDING AIDS, OR THEIRUSE BUILDING MATERIALS CONSTRUCTION OF BRIDGES CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES FIXED CONSTRUCTIONS FORMS HANDLING BUILDING MATERIALS ON THE SITE OR VIADUCTS REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTINGBUILDINGS SCAFFOLDING SHUTTERING STRUCTURAL ELEMENTS
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To enable a sensor to be protected from concrete pressure while the sensor can be attached from the outside.SOLUTION: A sheath body 2, which is molded in a spiral irregular shape, into which prestressing steel is inserted and into which grout is injected, is provided with a filling sensor 10 for detecting grout filling conditions. At least a tip side of the filling sensor 10 is covered from the outside with a cover part 11a of a sensor cover 11 integrated with the sheath body 2, and wiring 10b is extended from a back end side. 【課題】センサを外側から取り付けできるようにしながらも、コンクリートの圧力から守ることができるようにする。【解決手段】螺旋状の凹凸形状に成形され、内部にＰＣ鋼材が挿入され、グラウトが注入されるシース本体２に、グラウトの充填状況を検知する充填センサ１０を設ける。この充填センサ１０の少なくとも先端側をシース本体２に一体化したセンサカバー１１のカバー部１１ａで外側から覆い、後端側から配線１０ｂを延ばす。【選択図】図１