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• 2018-09-04

Bar Tendon 16 36 43 80 180 DFS020101 Bar Tendon 40 47 53 99 200 DFS030101 Bar Tendon 50 63 5 73 145 310 DFS040101 Bar Tendon 75 85 155 330 DFS050101 Readout Unit Measurement range 0 – 95 yield stress level of the steel tendonDYWIDAG Bar Anchors DYWIDAG Strand Anchors Bearing Plate DYNA Force 174 Connector DYNA Force 174 Sensor DYNA Force Sensor DYNA Force 174 Sensor DYNA Force 174 Sensor Cap Wedge Plate Unbonded Anchor Length Bonded Length Nut DYNA Force 4 Bonded internal prestressing configurations The most common use of C range anchors in bonded internal prestressing is based on the use of lubricated uncoated strands in a corrugated metal sheath galvanised or ungalvanised bendable by hand and injectedMPa bonded and unbonded tendons and pre stressing index 0 70 a nd 100 as given in Table 2 3 1 1 The details of the tested specimens are as Various applications of DYWIDAG post tensioning technology for prestressed concrete tank structures The extensive variety of DYWIDAG post tensioning tendon technology strand bar bonded unbonded mono multi straight circumferential shows effective applications in a water tank project in North America

Bonded bar tendons are embedded in concrete The corrosion protection of the prestressing steel and the bond with the structural concrete is provided by grout injected in the ducts A bonded tendon is intended to be used for concrete composite and masonryUNBONDED AND BONDED PT COMPARISON Applications both systems are used in building and civil structures bridges containment structures etc In USA unbonded is more common in buildings Bonded is more common in civil structuresFully unbonded partially bonded and fully unbonded The main variables were the reinforcement ratio of prestressing bars and web confinement including bonding conditions European Technical Approval DYWIDAG Post Tensioning DYWIDAG Post Tensioning System using Bars Post Tensioning Kit for Prestressing of Structures with Bars internal bonded and unbonded and external ETA 05 0123 European Organisation for Technical Approvals Europ 228 ische Organisation f 252 r Technische Zulassungen Organisation Europ 233 enne pour DYWIDAG Threadbar with hot rolled continuous thread on both sides Together with matching accessories it is used by formwork manufacturers around the world and has proven itself countless times on jobsites A decisive advantage of the DYWIDAGthe bar

PT systems with bars bonded strands and unbonded strands ETA Approvals 4 5 DYWIDAG Prestressing Systems are world renowned for reliability and performance most suitable for all applications in post tensioned and prestressed constructions They DYWIDAG Threadbar The original high quality DYWIDAG Threadbar may not be welded due to its chemical composition and must be protected against all kinds of weld spatter Hot rolled subject to independent supervision according to German bar approval DYWIDAG bonded post tensioning bar systems strengthen existing concrete structures connect precast members and create the fixation or tieback anchorages of steel structures Bar type WR for tendons longer than about 2 5 m provides a continuous coarse thread over the full length and are available for all bar diameters 2020 12 19 nbsp 0183 32 Bonded and unbonded systems can be mixed within a structure The unbonded post tensioned systems can be used in typical levels while the bonded post tensioning systems can be specified for the transfer girders on different levels to provide optimum crack and deflection control features essential for transfer girders required to carry the loads from the multistory post tensioning bonded unbonded and external as well as stay cables being able to fully serve the post tensioning construction DYWIDAG Post Tensioning Systems have always combined highest safety and reliability standards with most economical

DYWIDAG Bar Post Tensioning Systems A successful Tradition The first ever structure built with a prototype of the DYWIDAG Bar Post Tensioning System was the Alsleben arch bridge in Germany in 1927 In that year a tradition began that we have successfully continued on a global scale until today DYWIDAG Threadbar Unbonded internal bar post tensioning systems are used in projects where infrastructure needs strengthening and repair Typical applications include the connection between precast members the fixation or tieback anchorages of steel structures and transversal post tensioning Page 6of European Technical Assessment ETA 05 0123of 27 06 2018 replaces European technical approval ETA 05 0123 with validity from 30 06 2013to29 06 2018 OIB 205 068 17 015 ANNEX3 UNBONDED AND EXTERNAL BAR TENDON 177 OVERVIEW ON CORROSION PROTECTION Bonded length The DYWIDAG Threadbar is fixed in the borehole using grout cement mortar and can transfer the forces to the load bearing soil via bond and skin friction 2 Unbonded length The bar is uncoupled from the borehole using a plain tube sheathing so that it can freely extend in the unbonded length DYWIDAG Bar Post Tensioning Systems A successful Tradition The first ever structure built with a prototype of the DYWIDAG Bar Post Tensioning System was the Alsleben arch bridge in Germany in 1927 In that year a tradition began that we have successfully continued on a global scale until today

Bonded Post Tensioning GTI provides bonded post tensioning systems and components worldwide The GTI Zero Void 174 Bonded Monostrand System is the premier corrosion protection system available for single strand tendons The system is available for both 0 5 and 0 6 tendon diameters and can provide a critical level of durability for your 2015 12 31 nbsp 0183 32 Unbonded post tensioned concreteUnbonded post tensioned concrete differs from bonded post tensioning by providing each individual cable permanent freedom of movement relative to the concrete To achieve this each individual tendon is coated with a grease generally lithium based and covered by a plastic sheathing formed in an extrusion process bars that is mainly geared towards geotechnical applications building rehabilitation and strengthening DSI offers a complete product line in strand post tensioning bonded unbonded and external as well as stay cables being able to fully serve the postDYWIDAG external unbonded post tensioning systems strengthen wide span bridges and wind towers The systems use tendons with strands and wires or DYWIDAG Threadbars™ The systems which have low induced stress range and less fretting fatigue can be prefabricated or assembled on site DYWIDAG Post Tensioning DYWIDAG Post Tensioning System using Bars Post Tensioning Kit for Prestressing of Structures with Bars internal bonded and unbonded and external ETA 05 0123 Validity 20 October 2008 18 September 2015 European Technical