T-Bolts

Specification

Approvals and declarations

Materials

Applications and features

Determining T-bolt length

Minimum spacing for channel bolts

PEC standard T-bolts are specifically designed to withstand tension and perpendicular shear loads. These T-bolts provide a secure and reliable connection, even in demanding applications to anchor structural elements such as beams, columns, and walls to cast-in channels in concrete structures, or attaching facade systems, such as curtain walls and cladding, to cast-in channels in concrete structures.

TBS Standard T-bolt SS

Applications:

Features:

Specification 

PEC standard T-bolts are specifically designed to withstand tension and perpandicular shear loads. These T-bolts provide a secure and reliable connection, even in demanding applications to anchor structural elements such as beams, columns, and walls to cast-in channels in concrete structures, or attaching facade systems, such as curtain walls and cladding, to cast-in channels in concrete structures.

TB Standard T-bolt HDG

MBA cold-rolled cast-in channel Duplex 3D model

Product variants 

Dimensions

Bch [mm]

Hch [mm]

Hef [mm]

Fv, Fs [kN]

L2 [mm]

Ø D1 [mm]

Ø D2 [mm]

Ø D3 [mm]

Lengths [mm]

e [mm]

j [mm]

a1 [mm]

∠ Angle [°]

C [mm]

Matching profile

hp [mm]

Weight [kg/m]

e1 [mm]

Product variants

Min installation parameters

Hmin [mm]

Cmin [mm]

Smin [mm]

Smax [mm]

Lmin [mm]

X [mm]

Cracked concrete performance

Max. load capacity tension

NRd [kN] 

Max. load capacity shear

VRd [kN]

Load range [kN]

Anchor channels - cold-rolled

Available lengths

Anchor spacing for standard short cast-in channels

With better corrosion resistance, twice higher yield strength and 18 % more rigid than conventional stainless steel, temperature resistant, and higher fatigue strength, Duplex cold-rolled channels are the perfect solution for applications with static tension and  where shear loads in two directions. Typical installations include facades connections for precast, glass and masonry, as well as seating at stadiums. 

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MBA cold-rolled cast-in channel Duplex

The building was designed to achieve BREEAM ‘Outstanding’ rating. The facade was designed to maximise the light coming in. However, due to its design, the loads that the panels need to withstand are significant.

, 1 Bank Street is a steel-framed office tower with a sloping western façade and flexible design based around cellular beams.

Lindner Group website

Due to its extensive expertise in the design and delivery of glass facade fixings, Construction Fixing Systems were approached to discuss the design. CFS delivered a special design of cast-in channels for the facade, including the design and manufacturing of ski channels.

One Bank Street glass facade project 

 designed bespoke fixings to attach the concrete facade to the main structure. They were looking for a manufacturer who could support them in delivering the solution, including about 18 000 cast-in channels.

Techrete V&A Dundee case study

Victoria and Albert Museum of Design Dundee (V&A Dundee

) is the first V&A built outside London. The design of the facade drew inspiration from the Scottish cliffs and the silhouette of the impressive facade imitates the shape of a ship at dock. Due to the complex geometric slopes and curvatures, coupled with its exposure to the Scottish weather and its proximity to the North Sea marine environment, architectural concrete was the favoured material option for this project.

V&A Dundee

Since this project, CFS has supported Techrete on various projects and we keep working closely.

CFS worked closely with Techrete in order to manufacture the required precast facade support brackets in Duplex stainless steel. We have also worked closely during the building phase of this project in order to deliver the brackets in timely fashion.

Victoria and Albert Museum Dundee facade project

Sheldebouw were tasked with designing the building’s glazed envelope. The key challenge in the case of Shard was the building’s irregular shape. As the architect’s vision asked for a highly transparent facade with excellent energy efficiency, Sheldebouw opted for extra-clear low-iron glass. The glazing panels were installed to oversail the steel frames, making them invisible from the outside. Due to new regulations introduced in 2006, the whole facade was designed as a passive double-skin ventilated facade with built-in automatic fiberglass roller blinds.

Similarly, Shard Place, built several years later, has a double-skin glass facade.

In both cases, Sheldebouw needed an experienced partner to design and deliver fixings for the glass facade.

The Shard Quarter, developed in several phases, consists of three buildings: News Building, Shard Place, and Shard itself. Thanks to Sheldebouw, a leader in the curtain wall industry, CFS were involved in the building of Shard and Shard Place.

The Shard, designed by Renzo Piano Building Workshop, was designed as a ‘vertical city’. Shard Place (aka Fielden House) is a residential building built in the third phase of the development.

CFS has extensive experience in designing fixing solutions for glass facades as well as project management to minimise any unexpected delays. Being able to combine their technical expertise and manufacturing capabilities makes them an ideal partner for large complex projects.

In both cases, CFS designed and delivered cast-in channels to fix mullions supporting the glass panels of the facade, including relevant T-bolts.

Shard Quarter glass facade project

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MBA cold-rolled cast-in channel Duplex - 1.1

v1.1

Brochures

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Cast-in anchor channels - 1.1

MOSO cast-in channel ETA-13/0224

Installation tolerances CFS cast-in channels

Technical guidelines

MBA cold-rolled cast-in channel Duplex real render

Load group [T]

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Construction Fixing Systems Limited is a company registered in England and Wales with company number 2567516.

VAT number: GB 531 3821 72

	Product variants
	Dimensions
Profile size	Bch [mm] Channel width profile	Hch [mm] Channel depth	Hef [mm] Minimum effective embedment depth	Fv, Fs [kN] Axial and Angled (under 30 degrees)	L2 [mm] Length	Ø D1 [mm] Diameter	Ø D2 [mm] Diameter	Ø D3 [mm] Diameter	Lengths [mm] Available lengths	e [mm] Length	j [mm] Hole width	a1 [mm] Gap between holes	∠ Angle [°] Angle in degrees	C [mm] Hole to edge distance	Matching profile Compatible part	hp [mm] Profiling depth	Weight [kg/m] +-10%	e1 [mm] Length
MBA-28/15	28	15	45						100 - 6050						TBS-28
MBA-38/17	38	17	72						100 - 6050						TBS-38
MBA-38/17
MBA-38/17
MBA-50/31	50	31	99						100 - 6050						TBS-50
MBA-50/31
MBA-50/31
MBA-52/34	52	34	151						150 - 6050						TBS-50
MBA-52/34
MBA-52/34

Profile size	100	150	200	250	300	350	400	550	1050	3025	6050
MBA-28/15	⦿	⦿	⦿	⦿	⦿	⦿	⦿	⦿	⦿	⦿	⦿
MBA-38/17	⦿	⦿	⦿	⦿	⦿	⦿	⦿	⦿	⦿	⦿	⦿
MBA-50/31	⦿	⦿	⦿	⦿	⦿	⦿	⦿	⦿	⦿	⦿	-
MBA-52/34	-	⦿	⦿	⦿	⦿	⦿	⦿	⦿	-	-	-

Component	Material	Description
Channel profile	1.4362 (50/31 profiles), 1.4062 (52/34), 1.4462 (Special high corrosion class, only by special request)	Duplex and lean Duplex steel
Anchor	1.4301	Stainless steel

MBA cold-rolled cast-in channel Duplex

Applications and features

Product variants

Available lengths

Specification

Approvals and declarations

Materials

Can’t find what you’re looking for?

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