staircase products 13 - cfs fixings products_lr.pdfthe cvs 40 / 60 / 100 staircase products are used...
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STAIRCASEPRODUCTS 13
STAIRCASEPRODUCTS
CONTENTS
CVS 40 / 60 / 100 Staircase Connectors 13-03
Reinforcement Arrangement 13-04
Stair Flight Bearing Angle 13-08
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CVS 40 / 60 / 100 STAIRCASE CONNECTORS
The CVS 40 / 60 / 100 staircase products are used for connecting precast staircases to concrete shear walls, through the use of a bearing that rests within the shear wall.
The former for the cast in part is re-usable. The former is secured by two screws and can be removed once the concrete has cured.
The inner bearing part of the connector slids into the pocket in the shear wall on the construction site.
CVS bearers are produced under ISO 9001.
L1
La max 110
HF
HF
M8 H1
H1
B1L1
La max 110
HF
HF
M8 H1
H1
B1
CVS bearing in mold. CVS inner part slide out of bearing. CVS bearing under test to failure.
L1
La max 110
HF
HF
M8 H1
H1
B1L1
La max 110
HF
HF
M8 H1
H1
B1
CVS bearing in mold. CVS inner part slide out of bearing. CVS bearing under test to failure.
L1
La max 110
HF
HF
M8 H1
H1
B1L1
La max 110
HF
HF
M8 H1
H1
B1
CVS bearing in mold. CVS inner part slide out of bearing. CVS bearing under test to failure.
L1
La max 110
HF
HF
M8 H1
H1
B1L1
La max 110
HF
HF
M8 H1
H1
B1
CVS bearing in mold. CVS inner part slide out of bearing. CVS bearing under test to failure.
L1
La max 110
HF
HF
M8 H1
H1
B1L1
La max 110
HF
HF
M8 H1
H1
B1
CVS bearing in mold. CVS inner part slide out of bearing. CVS bearing under test to failure.
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REINFORCEMENT ARRANGEMENT
Bar No 1 Front Shear Bar
Bar No 2 Back shear bar
Bar No 3 Edge U Bar
• Anchorage of shear bars may be bent either perpendicular or aligned to CVS.
• Shear bar may be vertical or at an angle as shown.
• Shear bars may be doubled up in some cases.
The maximum gap between the concrete stair and wall elements to achieve the full design capacity is 40mm.
If this is increased to 50mm, the capacities reduce by 5kN.
NOTE:Correct position of reinforcement rebars 1 and 2. Ensure close proximity of the rebars to CVS Staircase Connector.
Reinforcement bar 1 must be in contact with staircase connector
Type CVS 40 CVS 60 CVS 100
Design capacity VSD kN 40 60 100
maximum gap between concrete parts for full design capacity for all types is 4cm/ increasing the gap to 5cm =>reduced design capacity 35kN, 55kN/95kN
Concrete
C 30
/37
C 35
/45
C 30
/37
C 35
/45
C 30
/37
C 35
/45
C 30
/37
C 35
/45
C 30
/37
C 35
/45
C 40
/50
C 30
/37
C 35
/45
C 30
/37
C 35
/45
thickness of concrete part
mm 150 175 200 175 200 200 250
Front shear bar (1) with bent ends
No of units 2 2 1 1 1 1 2 2 2 1 1 2 2 1 1
Diameter - ds mm 12 12 16 16 16 12 12 12 10 16 16 16 16 20 20
Lb,net mm ≥ 60 ≥ 60 ≥ 85 ≥ 85 ≥ 110 ≥ 110 ≥ 85 ≥ 85 ≥ 110 ≥ 110 ≥ 110 ≥ 110 ≥ 110 ≥ 160 ≥ 160
La≥5xds mm ≥ 60 ≥ 60 ≥ 80 ≥ 80 ≥ 70 ≥ 60 ≥ 60 ≥ 60 ≥ 50 ≥ 80 ≥ 80 ≥ 80 ≥ 80 ≥ 100 ≥ 100
Design capacity - VRd,fs kN 38.8 43.9 36.6 41.5 41.5 40.3 54.9 62.3 59.2 53.7 58.5 94.8 107.4 86.2 97.7
Back shear rebar (2) with bent ends
No of units 1 1 1 1 1 1 1 1 1 1 1 2 2 2 2
Diameter - ds mm 16 12 12 12 12 12 16 16 16 16 16 12 12 12 12
Lb,net mm 100 100 100 100 100 100 100 100 100 100 100 110 110 110 110
La≥5xds mm 70 60 60 60 60 60 80 80 80 80 70 60 60 60 60
Design capacity - VRd,bs kN 37.7 36.6 32.3 36.6 32.3 36.6 43.1 48.8 43.1 48.8 46.5 71.1 80.6 71.1 80.6
Edge U bar (3)
No of units >=4
Diameter - ds mm >=12 >=16
distance e mm <=100
horizontal leg Lb,net mm >=350 >=400
CVS Stair connector System - element thickness, extra reinforcement and distance for fixing
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Connector With Typical Additional Reinforcement
To reduce the noise transmission, an insolating pad can be inserted into the wall pocket underneath the bearing part.
The staircase connectors, made of material S355 are available in four different load groups. The product designation CVS 40 / 60 / 100 / 200 indicates the ultimate capacity per connector in kN.
Additional reinforcement located at the rear of the cast in part is required to transfer loads from the connectors into precast unit (see above image and overleaf).
Calculations are available for the staircase connectors to provide proof for the steel components and the anchorage arrangement within the precast unit.
Connector load bearing capacities have also been verified by practical tests.
Available in black or galvanised finish.
Versions available to fulfill horizontal tying requirements CVS 40H, CVS 60H, CVS 100H
*Fire protection under the CVS staircase connector in the joint must be considered by the designer or structural engineer. CFS recommends to use mineral wool or CFS fire stop. Please see CFS Site Catalogue for further information.
*Designer can consider step and sound reduction. For schools, hospitals, hotels and offices it is recommended to consider (min 10mm) elastic joint between landing and wall.
Staircase connector with wall, slab and shim pack for progressive collapse and tying requirements
For more information about progressive collapse staircases please contact CFS.
MCR
carrying out this type of work.
SIDE ELEVATION 2
1:4, 1:1 @ A3
CURTINS
SCALE 1:5 @ A3
SIDE ELEVATION 1
CVS-100 Custom with wall,slab and shim pack.
CHAPEL WHARF
Henley Road
www.cfs-fixings.com
SCALE 1:3 @ A3
BOTTOM ELEVATION 1
SCALE 1:3 @ A3
TOP ELEVATION
SCALE 1:3 @ A3Copyright © 2016 Construction Fixing Systems Limited
Rev. Date Details By
Drawn By:
Date:
Drawing:
Project:
Client:
Construction Fixing Systems Limited
Rev. Date Details By
Drawn By:
Date:
Drawing: CVS-100-CUSTOM
Registered in England No. 2567516
Unit 2A,Westfield Estate
Construction Fixing Systems Limited
Tel: +44 (0) 1491 576466
Email:
ISOMETRIC VIEW
Scale:
Drawing Description:
SCALE 1:3 @ A3
Marlow
Buckinghamshire, SL7 2TA
UK
Client:
Project:
General Notes
This drawing is to be read in conjunction with all other project drawings, the
structural calculations and specifications. This drawing is intended for use in
applying CFS products only.
Please check the conditions are in line with the assumptions made in the CFS
calculations or technical literature prior to ordering or using our products.
All dimensions are in mm. Do not scale off this drawing, use the dimensions
shown.
Disclaimer
This document has been prepared for the titled project or named part thereof and
should not be relied upon or used for any other project without an independent
check being carried out as to its suitability and prior written authority of Construction
Fixing Systems Ltd. (CFS) being obtained. CFS accepts no responsibility or liability
for the consequence of this document being used for a purpose other than the
purposes for which it was commissioned. Any person using or relying on the
document for such other purpose agrees, and will by such use or reliance be taken
to confirm his agreement to indemnify CFS for all loss or damage resulting there
from. CFS accepts no responsibility or liability for this document to any party other
the person for whom it was commissioned. This document has been prepared in
accordance with the CFS Design Protocol V1.1.
Safety, Health and Environmental Information
It is assumed that all works will be carried out by a competent contractor working
to an approved method statement. Please consider the usual hazards when
02/02/2017
15
0
120
R33.50
67
Pocket to be formed
by contractor
120
60
15
0
75
67
16
5
Reinforcement to be
in accordance with
CFS guidelines
CVS-100-Custom
MCR
carrying out this type of work.
SIDE ELEVATION 2
1:4, 1:1 @ A3
CURTINS
SCALE 1:5 @ A3
SIDE ELEVATION 1
CVS-100 Custom with wall,slab and shim pack.
CHAPEL WHARF
Henley Road
www.cfs-fixings.com
SCALE 1:3 @ A3
BOTTOM ELEVATION 1
SCALE 1:3 @ A3
TOP ELEVATION
SCALE 1:3 @ A3Copyright © 2016 Construction Fixing Systems Limited
Rev. Date Details By
Drawn By:
Date:
Drawing:
Project:
Client:
Construction Fixing Systems Limited
Rev. Date Details By
Drawn By:
Date:
Drawing: CVS-100-CUSTOM
Registered in England No. 2567516
Unit 2A,Westfield Estate
Construction Fixing Systems Limited
Tel: +44 (0) 1491 576466
Email:
ISOMETRIC VIEW
Scale:
Drawing Description:
SCALE 1:3 @ A3
Marlow
Buckinghamshire, SL7 2TA
UK
Client:
Project:
General Notes
This drawing is to be read in conjunction with all other project drawings, the
structural calculations and specifications. This drawing is intended for use in
applying CFS products only.
Please check the conditions are in line with the assumptions made in the CFS
calculations or technical literature prior to ordering or using our products.
All dimensions are in mm. Do not scale off this drawing, use the dimensions
shown.
Disclaimer
This document has been prepared for the titled project or named part thereof and
should not be relied upon or used for any other project without an independent
check being carried out as to its suitability and prior written authority of Construction
Fixing Systems Ltd. (CFS) being obtained. CFS accepts no responsibility or liability
for the consequence of this document being used for a purpose other than the
purposes for which it was commissioned. Any person using or relying on the
document for such other purpose agrees, and will by such use or reliance be taken
to confirm his agreement to indemnify CFS for all loss or damage resulting there
from. CFS accepts no responsibility or liability for this document to any party other
the person for whom it was commissioned. This document has been prepared in
accordance with the CFS Design Protocol V1.1.
Safety, Health and Environmental Information
It is assumed that all works will be carried out by a competent contractor working
to an approved method statement. Please consider the usual hazards when
02/02/2017
15
0
120
R33.50
67
Pocket to be formed
by contractor
120
60
15
0
75
67
16
5
Reinforcement to be
in accordance with
CFS guidelines
CVS-100-Custom
2
3
1
www.cfsfixings.com0813
STAIR FLIGHT BEARING ANGLE
Stair Flight Bearing Angle is used to support a staircase flight unit with a landing unit. Angles with welded studs are cast in to the staircase flight unit and can achieve 50-100kN ultimate capacity depending on the number of angles used.
CFS can manufacture stair bearing angles (BS EN 1090) according to your design for various types of structures and staircase types.
For more information please contact CFS.