Tension and Compression Systems
16Pages

Tension and Compression Systems for the Construction Industry

Ancon designs and manufactures high integrity steel products for the construction industry. Through continuous programmes of new product development, inward investment and employee advancement, the company is committed to maintaining the highest level of customer service within a dynamic and challenging industry. Masonry Support Systems Masonry Reinforcement Windposts and Parapet Posts Wall Ties and Restraint Fixings Channel and Bolt Fixings Compression Systems Stainless Steel Fabrications Flooring and Formed Sections Shear Load Connectors Reinforcement Continuity Systems Punching Shear...

Tension and Compression Systems TENSION & COMPRESSION SYSTEMS The use of new materials and forming processes have enabled cast components to be produced which are not only functional, strong and durable, but also aesthetically pleasing. Ancon manufactures a range of components that can be used to create a variety of assemblies, from simple tie bars to complex bracing systems involving several bars joined at one point. Unlike standard tie bars that require turnbuckles, adjustment to the length is accommodated within the fork connectors. APPROVALS AND CE MARKING Ancon Tension Systems conform...

Ancon 500 Tension System Stainless Steel The stainless steel Ancon 500 System is recommended for applications that demand corrosion resistance and a maintenance-free life, or where an attractive, polished finish is required. Stainless steel bars in nine diameters can be supplied, in most cases, in lengths up to 6 metres. Performance details are shown on page 10 and the availability of each size of bar is given on page 11. The system can be extended over the maximum bar length by the inclusion of couplers or anchor discs. The fork connectors and couplers are designed to allow adjustments to...

Tension and Compression Systems Pin Fork connector PTFE coating (stainless steel system only) Anchor Disc SYSTEM COMPONENTS The wide range of components available can be used to create a variety of assemblies, from simple tie bars to complex bracing systems involving several bars joined at one point. Fork Connectors & Locking Nuts Ancon fork connectors are supplied with a locking nut which provides a neat transition from bar to fork. Forks and their locking nuts have left or right hand threads, and are supplied complete with a pin. They are stamped with the size and either the letter R or L...

Tie Bars Tie bars have a right-hand thread at one end and a left-hand thread at the other. Flats are pressed into the bar close to each end. These allow the bar to be screwed into the fork connectors and adjustments to be made at any time after assembly. Neither couplers nor turnbuckles will be required for applications using a single bar between two forks. The bar is correctly installed when all threads are hidden within the locking nut. The availability of each size of bar is given on page 11. All bars are cut to a tolerance of ±2mm of the specified length. Carbon steel bars are available...

Tension and Compression Systems APPLICATIONS Ancon has supplied Tension and Compression Systems to many structures and buildings. The wide range of components can be used to create a variety of assemblies, from simple tie bars to complex bracing systems involving several bars joined at one point. The following applications demonstrate the variety of uses. Timber Construction A combination of timber and steel can use the best properties of each material and achieve a cost-effective and attractive design. Ancon Tension Systems can be connected to timber compression members, and if high loads...

Stainless Steel Systems Stainless steel is used for applications where a maintenance-free life is important or where a high quality polished finish is required. This can be particularly impressive when used in conjunction with large areas of glazing. Cross-Bracing The use of anchor discs in cross-braced panels will allow bars to lie in the same plane. This removes the need to offset bars, with the disc providing an interesting design feature for the panel. Glazed Structures The passage of light is normally a vital consideration in the design of glazed structures. The small profile of the...

Tension and Compression Systems PERFORMANCE AND DIMENSIONS The design resistances include a material factor (γm) of 1.25 against failure. An appropriate partial safety factor (γf) will need to be applied to the characteristic dead, imposed and wind loads. Characteristic dead load Characteristic imposed load = 22.6kN γf = 1.5 Fork ends of the tension system must be positioned in the same plane Forks must be correctly aligned, and positioned in the same plane to ensure that bending is not introduced into the tension system. Design Resistance = 79.1kN > 74.4kN Ancon Tension Systems are not...

Right and left hand threads in all couplers Coupler with hanger Machined coupler Dimensions of Couplers (mm) Thread Size Connector Length Connector Diameter Adjustment Bar Length Correction Length of Locking Nut Hanger Bar Diameter Hole Position Spanner Size (mm A/F) Note: Ancon 360 Systems are only available in Carbon Steel. Maximum Bar Lengths (metres) Thread Size Untreated Zinc Plated Hot-Dip Galvanised Stainless Steel Note: Material in excess of these lengths can be sourced to meet special project requirements. Contact Ancon for more information. Minimum Material Specification for...

Tension and Compression Systems Anchor disc with four bars Anchor disc with three bars Special Requirements Ancon can design and manufacture plates in special shapes to replace standard anchor discs and suit the aesthetic requirements of any application. Special anchor plate with three bars ANCHOR DISCS Dimensions of Anchor Discs (mm) Thread Size Disc Thickness Overall Diameter Effective Diameter Hole Diameter for Pin Note: Ancon 360 Systems are only available in Carbon Steel.

CONNECTING PLATES Connecting plates should be designed to suit each application. The critical dimensions are provided in the table and diagrams. In the examples shown here θ is 45˚. These plates should be manufactured from either grade S355 carbon steel or grade 1.4462 stainless steel; users should consider the corrosion properties of the material selected. Isolation material is supplied as standard with the stainless steel tension system to enable its fixing to a connecting plate of a dissimilar metal. Plate thickness p 2.5t θ h Note: Connecting plates can be manufactured by Ancon on...