DTS and BSF Telescopic Beam Connectors

Precast concrete beams can be connected to columns or to other beams using the DTS and BSF range of connectors. They provide an alternative to casting corbels which are difficult and costly to form, as well as reducing headroom and compromising aesthetics.

By contrast, DTS and BSF telescopic connectors leave a smooth soffit and provide a simpler, more cost
effective solution and are also suitable for round columns or skewed angle connections.

Conceptually, the DTS range is similar in design and usage to TSS stair connectors, although the usage orientation is different: DTS connectors are used ‘vertically’ in application. Originally designed for connecting precast Double Tee floor elements, the DTS system can also be used for lightweight beam connections.

For high-load beam connections (up to 1100 kN), the ideal solution is the BSF system, which is a 3-part connection incorporating a solid high-strength steel ‘knife’ to transfer loads between beams and columns, or beams to beams.

If you would like to see our products in action, please have a look at our videos in the resources area.

DTS and BSF telescopic connectors for beams

DTS Telescopic Connectors

Designed for connecting precast Double Tee floor elements or lightweight beam connections.

DTF Fixed Connectors

Fixed inner

BSF Telescopic Connectors

Medium and heavy-duty connectors designed to invisibly support and connect beams to columns, or beams to beams, without traditional and unsightly corbels or bracketry.

Choose connector by job requirements

DTS and BSF telescopic connectors can be used in different layouts according to stair landing configuration. Various layout options are shown below to help you select the most appropriate connector and download the relevant Technical Enquiry Form.

Alternatively, our Product Selection Guide offers an ‘at a glance’ overview of all Invisible Connections’ products, indicating where and how they might be used.

Beam with rectangular cross section into another beam

Beam with rectangular cross section into a column

Beam with stepped cross section into a column

Double Tee floor unit

Walls with rectangular cross section

Beam with rectangular cross section

Selecting the right product

Find below which Invisible Connections’ products are best suited for your project requirements, or download our at a glance Product Selection Guide to view the entire product range, features and benefits.

DTS Telescopic Connectors
DTS 120 (standard version)Vertical shear capacity up to 120 kN

Mid load range connector for miscellaneous applications including Double Tee flooring.

DTS 150 (standard version)Vertical shear capacity up to 150 kN

Mid load range connector for miscellaneous applications including Double Tee flooring.

DTF Fixed Connectors
DTF 120 (standard version)Vertical shear capacity up to 120 kN

Mid load range connector for miscellaneous applications including Double Tee flooring.

DTF 150 (standard version)Vertical shear capacity up to 150 kN

Mid load range connector for miscellaneous applications including Double Tee flooring.

BSF Telescopic Connectors
BSF 225 BB (beam to beam version)Vertical shear capacity up to 225 kN

Three component system including sliding steel knife. Eliminates corbels and complicated bracketry.

BSF 300 BB (beam to beam version)Vertical shear capacity up to 300 kN

Three component system including sliding steel knife. Eliminates corbels and complicated bracketry.

BSF 450 BB (beam to beam version)Vertical shear capacity up to 450 kN

Three component system including sliding steel knife. Eliminates corbels and complicated bracketry.

BSF 700 BB (beam to beam version)Vertical shear capacity up to 700 kN

Three component system including sliding steel knife. Eliminates corbels and complicated bracketry.

BSF 1100 BB (beam to beam version)Vertical shear capacity up to 1100 kN

Three component system including sliding steel knife. Eliminates corbels and complicated bracketry.

BSF 225 BC (beam to column version)Vertical shear capacity up to 225 kN

Three component system including sliding steel knife. Eliminates corbels and complicated bracketry.

BSF 300 BC (beam to column version)Vertical shear capacity up to 300 kN

Three component system including sliding steel knife. Eliminates corbels and complicated bracketry.

BSF 450 BC (beam to column version)Vertical shear capacity up to 450 kN

Three component system including sliding steel knife. Eliminates corbels and complicated bracketry.

BSF 700 BC (beam to column version)Vertical shear capacity up to 700 kN

Three component system including sliding steel knife. Eliminates corbels and complicated bracketry.

BSF 1100 BC (beam to column version)Vertical shear capacity up to 1100 kN

Three component system including sliding steel knife. Eliminates corbels and complicated bracketry.

To make an enquiry, email [email protected] or [email protected] or talk to us by calling 01844 266000

Can't find what you're looking for? Our resources area provides much more information. Or get in touch.

Related projects

If you would like to discuss your specific project requirements, please contact us for technical advice without obligation.

Thank you for sending the calculations and installation advice. The new calculation software looks great. Very clear, user friendly and with more design checks then the previous version. It’s a pleasure to see how you are constantly improving.

Stefan Pauceanu, Senior Structural Engineer, Ground Construction Ltd