Thermotec D

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Thermotec D connector

Thermotec D connectors allow for a safe and easy to install method of connecting the ceiling with the supported balcony slab in places where bi-directional shear forces may occur. These connectors only transfer shear forces acting in two directions, not transfer bending moments.

Their main advantages are:

high load capacity of a single element transferring shear forces,
simple construction.

Load capacities given in tables have been prepared for typical cases and the reinforcement ratio at the level of 0.5% and 1%. Load capacities for higher ratios of the reinforcement, elements close to edges and connector systems can be determined according to the procedure in the last chapter of the catalogue Connectors allow transfer of transverse forces acting on the joint of the supported balcony slab and the ceiling slab in two directions.

Characteristics of the Thermotec D connector:

Slab thickness: h=160 – 250 mm,
Insulation thickness of 80 mm – resole foam with the coefficient λ=0.021,
Minimum concrete strength class: C20/25,
Fire resistance: REI30 in a variant with a top firestop plate,
REI120 in a variant with two plates.

Thermotec D designation scheme

Connectors dimensions

Thermotec D
Connector type	Number of hangers "-"	Number of hangers "+"	Number of bearings	io	L	H
Connector type	Number of hangers "-"	Number of hangers "+"	Number of bearings	mm	mm	mm
2+1-1000	2	1`	2	30-120	1000	160-250
3+2-1000	3	2	2		1000
2+1-500	2	1	2		500

Lambda equivalent table of Thermotec D connectors

H	160		170		180		190		200		210		220		230		240		250
Typ	λ_eq	Req	λ_eq	Req	λ_eq	Req	λ_eq	Req	λ_eq	Req	λ_eq	Req	λ_eq	Req	λ_eq	Req	λ_eq	Req	λ_eq	Req
2+1-1000	0,20	0,41	0,19	0,43	0,18	0,45	0.17	0,48	0,16	0,50	0,15	0,52	0,15	0,54	0,14	0,56	0,14	0,58	0,13	0,60
3+2-1000	0,24	0,33	0,23	0,35	0,22	0,37	0,21	0,39	0,20	0,40	0,19	0,42	0,18	0,44	0,17	0,46	0,17	0,48	0,16	0,49
2+1-500	0,37	0,22	0,35	0,23	0,33	0,24	0,31	0,25	0,30	0,27	0,29	0,28	0,27	0,29	0,26	0,30	0,25	0,32	0,24	0,33

Assembly instructions - Thermotec D

Installation of balcony connectors when balconies are made on site:

Installation and levelling of formwork.
Installation of bottom reinforcement.
Installation of Thermotec connectors and linking them to the existing reinforcement.
Concreting the slab and balcony it is also possible to pour the balcony and ceiling slab in various stages.

Installation of balcony connectors when balconies are made in prefabrication workshop

Preparation of the slab in the prefabrication workshop.
Installation of the prefabricated element at the destination place after it has been transported to the construction site.
Binding the Thermotec connector to the existing reinforcement.
Pouring the slab.

Notes:
- strictly observe the assembly direction marked on the connector.
- the presented diagram is a recommendation that draws attention to the most important aspects of connector assembly.

Specific cases and solutions used on the construction site may need to be completed. The contractor is responsible for the correct installation method. In order to clarify any questions or doubts, please contact the EXTREA technical department.