Schöck Isokorb type WXT

Transcription

1 Schöck Isokorb type Schöck Isokorb type Reinforced /Reinforced Schöck Isokorb type Suitable for cantelevered shear walls. It transmits negative moments and positive shear forces. In addition, horizontal shear forces are transmitted. 251

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3 Element arrangement Installation cross section Product selection Type designations Special designs Outside Inside Outside Inside Balcony slab Floor slab Type Shear wall Balcony slab Floor slab Schöck Isokorb type : Plan view; balcony construction with heat insulated load-bearing shear walls H = Shear wall Upper part ΙΙΙ Intermediate part ΙΙ+ Middle part ΙΙ Lower part Ι Balcony slab Floor slab Schöck Isokorb type : Balcony construction with heat insulated load-bearing shear walls Reinforced /Reinforced 5 Element arrangement The Schöck Isokorb type consists of at least 3 parts: Bottom part I, middle part II, top part III. Depending on height an insulation intermediate part II+ is required. Schöck Isokorb type variants The configuration of the Schöck Isokorb type can vary as follows: Load capacity: 1 to 4 Width: B = mm with R0, B = mm with R90 Height: H = mm Fire resistance class: R0: Standard R90: Projecting upper fire protection slab, both sides 10 mm 5 Variants State the desired dimensions on ordering. Type designations in planning documents 1-B/H=175/2000-R90 Type/Load capacity Isokorb -width/isokorb height Fire protection 5 Special designs Please contact the design support department if you have connections that are not possible with the standard product variants shown in this information (contact details on page 3). 253

4 C25/30 design Isokorb height H [mm] Schöck Isokorb type Design values with Concrete strength class C25/30 M Rd,y [knm/element] V Rd,z [kn/element] Isokorb height H [mm] V Rd,y [kn/element] ±13.4 ±13.4 ±13.4 ±13.4 Reinforced /Reinforced Schöck Isokorb type Tension bars Compression bars Shear force bars vertical Shear force bars horizontal B min with R0 [mm] B min with R90 [mm] V Rd,y M Rd,y V Rd,z V Rd,z h = mm y x z M Rd,y Schöck Isokorb type : Sign convention for the design Schöck Isokorb type : Interaction diagram C25/30 H = V Rd,z h = mm V Rd,z h = mm M Rd,y M Rd,y Schöck Isokorb type : Interaction diagram C25/30 H = Schöck Isokorb type : Interaction diagram C25/30 H = Notes on design Moments from wind loading are to be taken up by the stiffening effect of the balcony slabs. If this is not possible, then M Edz can be transmitted through the additional arrangement of a Schöck Isokorb type DXT. In this case the type DXT is installed in the vertical poistion in place of the insulation intermediate part. Poor bonding conditions (bonding range II) are the basis for the determination of the tension bar anchoring lengths. The indicative minimum strength class of the external structural component is C32/

5 Expansion joint spacing Maximum expansion joint spacing If the structural component length exceeds the maximum expansion joint spacing e, expansion joints must be installed in the exterior structural components at right angles to the insulation plane, in order to limit the effect as a result of temperature changes. e Outside Type Type Type 120 Inside Schöck Isokorb type : Expansion joint arrangement Schöck Isokorb type Maximum expansion joint spacing e Insulating element thickness [mm] Expansion joints The expansion joint spacings can be enlarged, if there is no fixed connection between balcony slabs and shear walls, e. g. through laying of a sliding foil. e [m] Reinforced /Reinforced 255

6 Product description Tension bars Shear force bars horizontal H = H = Reinforced /Reinforced Schöck Isokorb type 1: Product section Schöck Isokorb type 1: Product view B Shear force bars vertical Shear force bars horizontal Compression bars Schöck Isokorb type 1: Product plan view 5 Product information Download further product plan views and cross-sections at 256

7 Fire protection configuration H = H = Schöck Isokorb type 1 with R90: Product section; fire protection slab top and bottom B 15 Schöck Isokorb type 1 with R90: Product view; fire protection slab circumferential Reinforced /Reinforced Upper part ΙΙΙ Intermediate part ΙΙ+ Middle part ΙΙ Lower part Ι Schöck Isokorb type 1 with R90: Fire protection slabs circumferential 257

8 On-site reinforcement Outside Inside Reinforced /Reinforced H = Reinforcing mesh Pos. 3 Pos. 2 Pos. 4 Pos. 3 5Reinforcing mesh to Pos. 2 Schöck Isokorb type : On-site reinforcement; section Outside Pos. 2 Pos. 4 Inside B Pos. 3 t Pos. 3 Pos. 3 Pos. 2 Pos. 4 Pos. 3 Schöck Isokorb type : On-site reinforcement; plan view 258

9 On-site reinforcement Recommendation for the on-site connection reinforcement Details of the lapping reinforcement for Schöck Isokorb with a loading of 100 % of the maximum design moment with C25/30; positively selected: a s lapping reinforcement a s Isokorb tension bars/compression members. On-site reinforcement Schöck Isokorb type Lapping reinforcement Concrete strength class C25/30 4 H8 4 H8 4 H10 4 H12 Lap length l0 [mm] Pos. 2 Suspension reinforcement (anchoring with stirrup or L) Pos. 2 4 H8 4 H10 4 H12 4 H16 Pos. 3 and Pos. 4 Structural edging Pos. 3 and 4 Wall reinforement and lapping reinforcement shear force bar acc. to the specifications of the structural engineer acc. to the specifications of the structural engineer 5 Information about on-site reinforcement Alternative connection reinforcement is possible. For the determination of the lap length the rules acc. to BS EN (EC2) and BS EN /NA apply. A reduction of the required lap length using m Ed /m Rd is permitted. The indicative minimum strength class of the external structural component is C32/40. Reinforced /Reinforced 259

10 Installation 5 Installation The Schöck Isokorb type is supplied in different components (bottom part, middle part, intermediate part, top part). Depending on the number ordered, identical components on one pallet, for transport security. The assignment of the components takes place on the construction site acc. to the installation instructions see page 261. Reinforced /Reinforced 260

11 Installation instructions 3A 3B 1 3C 3D Reinforced /Reinforced

12 Installation instructions 5 Reinforced /Reinforced 8 6 l 0 l

13 3 Check list Have the loads on the Schöck Isokorb connection been specified at design level? Has the cantilevered system length or the system support width been taken as a basis? Are the maximum allowable expansion joint specings taken into account? Are the requirements with regard to fire protection explained and is the appropriate addendum entered in the Isokorb type description in the implementation plans? Have the requirements for on-site reinforcement of connections been defined in each case? Reinforced /Reinforced 263