sGroup Anchor Simultaneously Tensioning Hydraulic Jack

US3090598A - Hydraulic jack for the prestressing of

A hydraulic jack adapted. for the stressing of an elongated element anchored at one end to a structure provided with releasable anchor means for said element remote from said one end, comprising a tubular housing positionable to surround a projecting portion of said element while bearing with a forward extremity upon said structure, hydraulic ...Cited by: 17

Stressing - DSI EMEA

Tension is applied to prestressing steel by using a hydraulic stressing jack. The jack bears against one of the anchors that is embedded in the concrete and pulls the steel to a predetermined force. As the tensioning is occurring, the steel is being elongated, and the …

Hydraulic Strand Jacks | Strand Jack Systems | Enerpac

DYWIDAG has developed a series of jacks, rams and hydraulic pumps in order to reach the target stressing load. The necessary versatility is provided by changing devices that make one unit adaptable for many different tendon sizes.

Hydraulic Stressing Jack|multi Strand Manufacturers and

The strand jack lifting technique originates from the concrete post tensioning principle. A strand jack can be considered a linear winch. In a strand jack, a bundle of steel cables or strands are guided through a hydraulic cylinder; above and below the cylinder are anchor …

Hydraulic Jack - an overview | ScienceDirect Topics

and bar post-tensioning (bonded, unbonded and external) as well as stay-cables being able to fully serve the post-tensioning construction industry. DYWIDAG Post-Tensioning Systems have always combined the highest safety and reliability standards with the most economical efficiency in their research and development.

Multistrand Post-Tensioning System

Description of Hydraulic Stressing Jack|multi strand. Hydraulic Stressing Jack are double-acting jacks that utilize twin hydraulic cylinders to tension prestressed tendons and jacking anchors. Through-type jacks are suitable for tensioning belts. The working principle is as follows: When tensioning the prestressed tendons, pull the cylinder oil nozzle into the oil, top pressure cylinder

Power Team

The hydraulic jack assembly consists of one or more hydraulic pistons that, when stroked up and down, move pipe in and out of the well. Most units are configured with either two or four cylinders. More cylinders mean more power, but slower tripping speeds. If the load is light, a four-cylinder unit can operate using two cylinders to increase trip speed.

The Botlek Bridge: DYWIDAG Jacks lift Steel Girders for

Multistrand Post-Tensioning System DYWIDAG has developed a series of jacks and hydraulic pumps in order to efficiently and economically stress its tendons. Versatility is provided by changing devices that make one unit adaptable for many different tendon sizes.

Stressing - DSI Civil

The Power Team portfolio features hydraulic pumps covering a wide variety of flow stage configurations and reservoir capacities, compact yet powerful jacks, cylinders (single and double action) and valves (load-lowering, shut-off, pressure-reducing, sequence, metering, etc.).

Multistrand - Post Tensioning

The Botlek Bridge: DYWIDAG Jacks lift Steel Girders for Europe’s largest Lift Bridge into Position. As an integral part of the construction of the A 15 Motorway from Maasvlatke to Vaanplein in the Netherlands, the new Botlek Bridge was built as a new element of the 37km long route.

China Slab System Post Tension Anchorage Prestressed

Bonded Strand Post-Tensioning System DYWIDAG has developed a series of jacks, ... DYWIDAG has developed a series of jacks, rams and hydraulic pumps in order to reach the target stressing load. ... Power seating is a way of hydraulically pressing in the wedges with a predefined load individually and simultaneously rather than relying simply on ...

Hydraulic Bolt Tensioning Cylinder type MS, multi-staged | ITH

stretching results in bolt tension, known as preload, which is the force that holds a joint together. Torque meter can be used to measure bolt tension. High preload tension helps to keep bolts tight, increases the strength of a joint, and generates friction between parts to resist shear and improves the fatigue resistance of bolted connections.

1. Pre-tensioning vs. Post-tensioning – Ut Tensio, Sic Vis

Post Tensioning & Grouting use and supply the VSL prestressing range of Multistrand concrete anchors comprising strand options from three to fifty-five in both 12.7 and 15.2 dia. strand. Multistrand stressing uses hydraulic jacks to apply a simultaneous uniform force to the strand within a Multistrand anchor …

Hydraulic Cylinders, Jacks, Rams | Enerpac

Safe Stressing – Multi Strand System When using a number of strands in a round duct, with each individual strand threaded through a common anchorage and stressing them simultaneously, it is known as a multi strand system. Safety (OH&S) Prior to Stressing Multi Strand: Procedure prior to stressing

Hydraulic Jack Calibrations Rentals - Hydraulic Jacks

Slab Anchorage, Slab Anchor Head, Slab Prestressed Wedge manufacturer / supplier in China, offering Slab System Post Tension Anchorage Prestressed Concrete, Yt28 Pneumatic Air Leg Rock Drill with Air Leg Support, Yt28 Pneumatic Rock Drill Jack Hammer with Air Leg Support and so on.

Equipment - DSI Civil

Hydraulic Bolt Tensioning Cylinder type MS, multi-staged ... With ITH Multi-Tensioning you can use a number of Bolt Tensioning Cylinders together to tension bolts simultaneously (pictured: specific Multi-Tensioning hydraulic coupling at the tool). ... Multi-tensioning hydraulic connection: male and female couplers on the hydraulic block, ...

Chapter 10: Lighting, Tools, and Rescue Flashcards | Quizlet

Pre-tensioning vs. Post-tensioning. ... at which time the tendons are tensioned by means of a hydraulic jack, and the beam becomes stressed. ... (neglecting ‘anchor set’) measured after the load is applied to the beam (after the hydraulic jacking is complete). This is in contrast to pre-tensioning…

StrongPIPE® XPT Post-Tensioning System | STRUCTURAL

Enerpac offers hundreds of different configurations of mechanical and hydraulic cylinders and lifting systems, plus products ranging from hydraulic jacks for portability and tight fits, to engineered systems for precise control over multiple lift points.

Freyssi Flat Jacks - Freyssi Flat Jacks

WB Equipment supplier of Enerpac Cylinders, Lifting Products & Systems, Hydraulic Torque Wrenches, Synchronous Lifting Systems, Hydraulic pumps and valves and other Enerpac Products. WB Equipment Service Corp. ... Hydraulic Jacks Loadcell Calibrations; Hydraulic Jack Calibrations Rentals;

Skidmore Bolt Tensioner Rentals - Skidmore Bolt Testers

a portable system designed to simultaneously tension all ... and secondary manways, handwheel and valve covers. Tentec MST Series MULTI STUD TENSIONERS BOLT TIGHTENING SOLUTIONS No matter what your preference for bolt tightening, Atlas Copco have it covered. ... folio of hydraulic bolt tightening solutions that we are offering to several key ...

DYWIDAG Bonded Post-Tensioning Systems Using Stran

Stressing with multi strand jacks means that . all strands in a cable bundle can be stressed simultaneously. The advantage of this method is the fast and accurate stressing operation of the cables in one step. Our multi-strand jacks come with a variety of options to suit your specific requirements. They have capacities of 110T to 1300T and

IHS Stressing Jacks | Stressing & Jacking Equipments in

Tension is applied to prestressing steel by using a hydraulic stressing jack. The jack bears against one of the anchors that is embedded in the concrete and pulls the steel to a predetermined force. As the tensioning is occurring, the steel is being elongated, and the …

Equipment Tensioning of DYWIDAG Multistrand Anchors. All jacks are calibrated with their respective pressure gauges.For installation and stressing efficiency, most DYWIDAG jacks for multistrand anchors are equipped with internal strand guide tubes and automatic strand gripping and releasing devices.

Start studying Chapter 10: Lighting, Tools, and Rescue. Learn vocabulary, terms, and more with flashcards, games, and other study tools. Search. ... Which type of jack is often used to tighten and support a shoring/stabilizing system in a TRENCH rescue? ... What type of lifting tool is used to create an anchor point above a manhole or opening?

The StrongPIPE® XPT™ External Post-Tensioning System utilizes steel tendons around the exterior circumference of an existing pipe. A StrongPIPE® XPT™ tendon consists of high-strength steel strand, coated and sheathed in extruded plastic for corrosion protection, and an anchorage assembly.

A hydraulic jack uses hydraulic power. The most common form is a car jack, floor jack or garage jack, which lifts vehicles so that maintenance can be performed. Jacks are usually rated for a maximum lifting capacity (for example, 1.5 tons or 3 tons). Industrial jacks can be rated for many tons of load.

A hydraulic jack uses hydraulic power. The most common form is a car jack, floor jack or garage jack, which lifts vehicles so that maintenance can be performed. Jacks are usually rated for a maximum lifting capacity (for example, 1.5 tons or 3 tons). Industrial jacks can be rated for many tons of load.

Safe installation and problem-free tensioning thanks to optimized centering of both anchor parts and the hydraulic jack Coupler R. Fixed coupler that is used at the joints of construction segments and that allows the user-defined lengthening of MA Multiplane Anchorage Tendons. Tendon Coupler R is also used as live end tensioning anchor

IHS Multi Strand Jacks . McMillan Engineering Group designs and manufactures a complete range of IHS Stressing Equipment to suit your pre-stressing and post tensioning needs. Stressing with Multi Strand Jacks means that all strands in a cable bundle can be stressed simultaneously.