Precast Hollow Core Slabs

Fixing Systems for
Precast Hollow Core Slabs
2012 / 01
1
Introduction
Introduction to Hollow Core Slabs:
Hollow Core Slab Fixing Systems
Hollow core slabs are a very common material made of precast concrete, steel and
composite structures for use in retail, industrial, commercial building and car parks as well
as in housing, educational and government projects.
Technical Information:
Hollow Core Floors are manufactured using a long line
casting technique with automatic casting equipment
which places high strength, low water/cement
ratio concrete under a high degree of vibration and
compaction.
The section profile incorporates hollow cores to reduce
self-weight without significant reduction in section
stiffness. Reinforcement is by high tensile prestressing
strand or wire which has an ultimate strength of
more then 3 times that of conventional high tensile
reinforcement. The structural performance resulting
from the combination of those featured produces a
slab which is highly efficient and economic for any
load/span situation.
100 mm thick
1200 mm Nominal width
150 mm thick
200 mm thick
250 mm thick
1200 mm Nominal width
300 mm thick
350 mm thick
400 mm thick
450 mm thick
1200 mm Nominal width
fischer fixings UK Ltd
Whitely Road
Hithercroft Industrial Estate
Wallingford
Oxfordshire
OX10 9AT
6 January 2012
Testing of Fischer Fixings in Bison Hollow Core Slabs
We confirm that the tests as detailed in your document title “Fixings Testing on Bison Hollow
Core Slabs”, were carried out in our laboratory. The tests were carried out on the soffit of a
standard 150 mm deep slab, and the results are a true record of the tests. Therefore, we can
recommend that the fixings described are suitable for use with hollow core slabs, up to the
safe working loads stated.
Yours Faithfully
For Bison Manufacturing Ltd
Dr Kamel BENSALEM
Chief Structural Engineer
2
2
Bison letter of confirmation for product testing & subsequent approval
For the attention of Mirka Valovicova
Chemical Fixings
FIS V 360 S Resin
1
2
1
2
3
FIS V Resin
FIS S Static nozzle
FIS H N anchor sleeve with net
Description
Certification
Building Materials
With anchor sleeve FIS H N:
Vertical perforated bricks, precast hollow
core slabs, sandlime perforated bricks,
hollow blocks, solid red bricks, sandlime
solid bricks, pumice hollow planks, hollow
filler block floor and other perforated
bricks.
Without anchor sleeve:
Concrete, lightweight concrete, natural
stone, solid red bricks, sandlime solid
bricks, solid pumice stone and other
solid materials.
The fischer Injection system FIS V 360 S
contains a styrene free, quick setting,
high quality hybrid resin mortar, which is
characterised by its universal suitability for
many applications. It achieves maximum
strength values in almost all building
materials and anchors safely and without
expansion pressure. The 2 components
are mixed together inside the static mixer.
A simple change of the static mixer allows
the cartridge to be reused after it has been
opened.
▪ Building supervisory approval (DIBt)
in combination with injection anchor
sleeve FIS H K and injection anchor parts
FIS A or FIS E for solid, perforated and
hollow bricks (solid bricks also without
anchor sleeves)
▪ European Technical Approval Option 7
(ETA 02/0024) in combination with
threaded rods FIS A or RG M for noncracked concrete
▪ Building supervisory approval (DIBt) for
aerated concrete in combination with
cone drill PBB centring sleeve PBZ and
threaded rod FIS A.
▪ The FIS V also has ETA (ETA08/0266)
for rebar connections.
▪ Building supervisory approval (DIBt) for
VBS 8 facing refurbishment anchor
Advantages / Benefits
▪
▪
▪
▪
▪
▪
High-performance hybrid mortar for highest loads in almost all building materials.
Universal fixing system for a broad range of applications on building sites.
Expansion-free anchoring allows low axial spacings and edge distances.
Extensive range of accessories for a wide variety of applications.
Ergonomic application guns for quick and easy installation.
A variety of approvals cover many applications in nearly all building materials and guarantee
maximum safety.
Installation in hollow core materials
Hollow Core Slab Fixing Systems
3
Suitability
▪
▪
▪
▪
▪
▪
▪
▪
▪
Technical Data
1)
2)
Steel Constructions
Machines
Gratings
Gates
Handrails
Brackets
Pipelines
Sanitary items
Cable trays
1) FIS V 360S 2) FIS S Nozzle
Type
Art.-No.
approval
contents
languages on the label
 DIBt ■ ETA
94405
61223
FIS V 360 S
FIS S
■
▯
1 cartridge 360 ml + 2 static mixer
10 static mixer FIS V 360 S
GB, I, P, E, PRC, JP
-
shelf life
Qty. per box
months
pcs.
18
-
6
10
1) FIS H N
Type
FIS H 16 x 85 N
FIS H 18 x 85 N
FIS H 20 x 85 N
Art.-No.
50470
50472
50474
drill
min. drill hole
depth
Min.
anchorage depth
Min.
anchorage depth sleeve
do
t
hv
hv
[mm]
[mm]
[mm]
[mm]
16
18
20
95
95
95
90
90
90
85
85
85
Mortar
filling quantity
anchor per
360 ml-cartridge
fits
15
17
19
11
10
9
Ø8/M8
Ø10/M10
Ø12/M12
Qty. per box
pcs.
20
20
20
3
Steel Anchors
FHY Hollow Ceiling Anchor
Hollow Core Slab Fixing Systems
1
1
2
FDA-R Drop In Anchor
2
FHY Zinc-plated steel
FHY A4* Stainless steel of the corrosion resistance class III.
FDA-R Drop in anchor
Description
Description
The fischer Hollow Ceiling Slab anchor FHY has been developed
specially for fastenings in hollow core slabs of prestressed
concrete. It is designed for use with standard bolts or threaded
rods with metric threads from M6 to M10. The FHY is installed
flush with the concrete surface. When the bolt or the nut is
tightened a tapered element is pulled into the sleeve, which
presses this outwards. In this way, the FHY presses against the
sides of the hole, creating a friction fit. If the anchor encounters
a cavity during installation, the expansion of the sleeve forms a
Y shape. The holding power is now the result of a combination
of expansion pressure and formfit. The FHY offers considerable
scope in the location of attachment points. Unlike other
competing products, it does not have to be located at the centre
of the cavity axis, which is often very difficult to define. Instead,
it can be located down to a minimum distance of 50 mm from
the pre-stressing steel.
The FDA-R is a drop in anchor with a rim so that the anchor
remains flush with the surface of the substrate at all times. As
the anchor retains its position item that has been attached to
the substrate can be removed and refitted several times with
no effect. The drill hole can be a slightly deeper depth without
effecting the anchor’s performance. This anchor is suitable for
use with all types of screws and studs with a metric thread.
Building Materials
Suitability
Concrete ≥ B15 and dense
natural stone plus hollow
core slabs.
Ideal for fastening bolts and
threaded rods in combination
with general plumbing
materials.
▪ Air-conditioning
▪ Heating & ventilation
▪ Pipes
▪ Sanitary items
▪ Cable trays
Certification
Building Materials
Hollow ceiling slabs of
prestressed concrete,
concrete ≥ B55.
from M8
Suitability
All types of anchoring:
▪ Cross beams
▪ Pipes and ventilation
ducts
▪ Suspended ceilings
▪ Safety engineering
▪ Cable trays.
Approved for:
Pre-stressed hollow-core
concrete slabs C45/55 (only
zinc-plated version)
Installation
Installation
Note: The correct setting tool must be used on installation,
otherwise anchor may not be set correctly.
Technical Data
Type
Technical Data
Type
Art.-No. approval
 DIBt
4
drill-Ø
min. drill effect. anchorage anchor
hole depth
depth
length
thread
min. bolt
max. bolt
qty.
penetration penetration per box
do
t
hef
l
M
e2
e1
[mm]
[mm]
[mm]
[mm]
 
[mm]
[mm]
pcs.
FHY M 6
30138
▯
10
50
30
37
M6
37
45
50
FHY M 8
30146
▯
12
60
35
43
M8
43
55
25
FHY M10
30148
▯
16
65
40
52
M 10
52
60
20
FHY M 6 A4
30139
10
50
30
37
M6
37
45
50
FHY M 8 A4
30147
12
60
35
43
M8
43
55
25
FHY M10 A4 30151
16
65
40
52
M 10
52
60
20
*not part of the approval
Art.-No.
drill-Ø
min. drill
hole depth
anchor
length
qty.
per box
do
t
l
[mm]
[mm]
[mm]
pcs.
FDA-R 6 x 25
62366
8
27
25
100
FDA-R 8 x 30
62378
10
32
30
100
FDA-R 10 x 30
62379
12
33
30
100
Self-Tapping Screws
FBS Self-Tapping Screw
3
5
2
4
6
1
2
3
4
5
6
FBS-P Pan head
FBS-SK Counersunk head
FBS-US Hex. head with intergrated washer
FBS-S Hex. head
FBS-M8 external thread
FBS-M8/M10 internal thread
Description
Description
fischer concrete screws have a specially hardened thread.
The lower turns of the thread also have a serrated edge. The
diameter of the hole and the thread of the screw are adapted so
that the serrated thread of the screw cuts into the concrete. The
thread turns creating a fine undercut, ensuring that the load is
safely supported by a perfect form fit. The teeth allow the thread
to cut into the concrete, thereby reducing the amount of energy
required to insert the screw into its position.
The frame fixing screw, type FFS provides stress free standoff
installations without the use of additional plugs. The continuous
thread ensures that the fixture cannot be pulled up against the
building material. Distortion of the profile will therefore not
take place, either during or after installation (for instance when
applying insulating foam). The distance is also maintained
when loads are subsequently applied. The long screw length
make exact positioning easy.
Approvals
Building Materials
Concrete ≥ B15 and masonry
building materials.
For type
FBS10/15 S A4
Suitability
▪
▪
▪
▪
▪
▪
▪
▪
Installation rails
Pipework
Ventilation ducts
Suspended ceilings
Metal profiles
Cable trays
Façade sub structures
Also suitable for temporary
fastenings such as wall
shuttering
Approved for:
Cracked and non-cracked
concrete C20/25 to
C50/60.
Lightweight ceilings and
suspended ceilings according
to DIN 18168 and statically
comparable fixings
Building Materials
Suitability
Concrete, solid block, sand
lime solid bricks, perforated
bricks, sand lime perforated
bricks, hollow blocks, solid
pumice, aircrete, natural
stone.
▪
▪
▪
▪
Technical Data
Type
Art.-No.
Installation / Technical Data
Type
Art.-No.
approval drill-Ø drill hole dia. screw
in object
dia.
 DIBt
ETA
drill hole
depth
anchorage max. usable
depth
length
do
df
ds
h0
hef
tfix
[mm]
[mm]
[mm]
[mm]
 
[mm]
actuation
qty.
per box
pcs.
FBS 5/5 P
66774
▯
5
7
6.5
65
55
5
T30
100
FBS 6/5 SK
66935
▯
6
8
7.6
65
55
5
T30
100
FBS 6/5 P
66939
▯
6
8
7.6
65
55
5
T30
100
FBS 6/25 P
66948
▯
6
8
7.6
65
55
25
T30
100
FBS 8/5 US
66956
▯
8
12
10.5
90
75
5
T40/SW13
100
FBS 8/25 US
66957
▯
8
12
10.5
110
75
25
T40/SW13
100
FBS 8/15 S
66958
▯
8
12
10.5
100
85
15
SW 16
100
FBS 10/5 S
67062
▯
10
14
12.5
100
85
5
SW 18
50
FBS 10/15 S
67063
▯
10
14
12.5
110
85
15
SW 18
50
FBS 10/20 S
67068
▯
10
14
12.5
120
85
25
SW 18
50
10
14
12.5
105
85
10
SW 17
50
10
14
12.5
115
85
20
SW 17
50
FBS 10/15 S A4 47465
FBS 10/20 S A4 98336
Type
Art.-No.
▯
approval
 DIBt
ETA
drill-Ø drill hole dia. screw dia.
in object
drill hole
depth
anchorage
depth
thread
M
do
df
ds
h0
hef
[mm]
[mm]
[mm]
[mm]
 
drill-Ø
screw length
do
IS
[mm]
[mm]
drive
head
qty per box
[mm]
[mm]
  pcs
FFS 7.5 x 42
92695
6
42
T30
11.5
100
FFS 7.5 x 52
62395
6
52
T30
11.5
100
FFS 7.5 x 62
62396
6
62
T30
11.5
100
FFS 7.5 x 72
61550
6
72
T30
11.5
100
FFS 7.5 x 82
68955
6
82
T30
11.5
100
FFS 7.5 x 92
61551
6
92
T30
11.5
100
FFS 7.5 x 102
68956
6
103
T30
11.5
100
FFS 7.5 x 112
61552
6
112
T30
11.5
100
FFS 7.5 x 122
68957
6
122
T30
11.5
100
FFS 7.5 x 132
61553
6
132
T30
11.5
100
FFS 7.5 x 152
61554
6
152
T30
11.5
100
FFS 7.5 x 182
61555
6
182
T30
11.5
100
FFS 7.5 x 202
68958
6
202
T30
11.5
100
FFS 7.5 x 212
61556
6
212
T30
11.5
100
width across qty.
nut
per box
sw
pcs.
66949
▯
6
8
7.6
60
55
M8
SW 10 100
FBS 6 M8/M10I 66950
▯
6
8
7.6
60
55
M8
SW 10 100
FBS 6 M8/5
Windows
Door frames
Fire protection doors
Squared timbers
Hollow Core Slab Fixing Systems
1
FFS Self-Tapping Screw
5
General Fixings
Hollow Core Slab Fixing Systems
SX Plug
M Anchor
Description
Description
This plug has been developed to expand 4-ways. It form
locks in solid the substrates which guarantees maximum
load bearing capabilities. The area of application ranges from
solid materials through to perforated materials. The screw
tolerance range allows the safe use of different screw types
and diameters, especially for chipboard screws and the fischer
ASL universal spacer screws.
A conical expansion fixing of glassfibre reinforced nylon and
brass taper for universal installation with machine screws and
threaded bolts. Designed for a high degree of expansion, the
fixing is not sensitive to inaccuracies in drilled holes or material
tolerances. The fixing is also ideal for fastenings in thin concrete,
artificial stone and other pressure-resistant flat material.
Suitability
Building Materials
Suitability
▪ For practically all concrete and masonry materials, ranging
from perforated bricks to hollow blocks and aircrete (aerated
concrete).
▪ For wood and chipboard screws between 2 and 12 mm.
▪ For all objects which can be fixed with wood and chipboard
screws, e.g. wall mounted shelves, light wall cupboards,
curtain rails, light coat racks, skirting, light brackets, electric
switches, cable ducts, cable clips, lamps, towel rails, mirrors,
mirror cabinets, soap dishes, picture frames, wallmounted
clocks, hanging baskets, letter boxes & washing lines etc.
Concrete, natural stone, solid
bricks, solid gypsum panels,
vertical perforated bricks,
sandlime hollow bricks,
hollow bricks, aircrete.
▪
▪
▪
▪
▪
▪
Building Materials
Concrete, prestressed hollow-core concrete slabs, Natural stone
with a dense structure, Solid brick, solid sand-lime brick, Solid
block made from lightweight concrete, aircrete, solid panel
made from gypsum, vertically perforated brick, perforated
sandlime block, hollow block made from lightweight concrete,
slabs made of perforated bricks, hollow concrete blocks etc.
Installation
Installation instructions:
In less pressure resistant materials and perforated brick, the
tightening torque should be adapted to the material.
The given torque values apply to screws of strength class Ž 5.8.
Technical Data
Installation
Type
Installation instructions:
In less pressure resistant materials and perforated brick, the
tightening torque should be adapted to the material.
Type
SX 4 x 20
SX 5 x 25
SX 6 x 30
SX 6 x 50 *
SX 6 x 50 R
SX 8 x 40
SX 8 x 65
SX 10 x 50
SX 10 x 80
SX 12 x 60
SX 14 x 70
SX 16 x 80
* without collar
6
Art.-No.
70004
70005
70006
24827
78185
70008
24828
70010
24829
70012
70014
70016
Machines
Steel structures
Conveyor equipment
Vending machines
Protective gratings
Diamond-drilling
equipment
drill
min. drill hole
depth
plug length
= min. anchoring depth
chipboard
screw
qty. per box
do
t
l = hef
ds x ls
[mm]
[mm]
[mm]
[Ø mm]
pcs.
4
5
6
6
6
8
8
10
10
12
14
16
25
35
40
60
60
50
75
70
95
80
90
100
20
25
30
50
50
40
65
50
80
60
70
80
2-3
3-4
4-5
4-5
4-5
4,5 - 6
4,5 - 6
6-8
6-8
8 - 10
10 - 12
12 (1/2“)
200
100
100
100
100
100
50
50
25
25
20
10
Art.-No.
drill-Ø
min drill hole fixing length= min
depth
anchorage depth
thread
do
t
I=hv
[mm]
[mm]
[mm]
[mm]
max installation
torque
qty per box
MD
  pcs
M5
50505
10
45
35
M5
4
50
M6
50506
12
50
40
M6
7
50
M8
50508
16
65
50
M8
16
20
M10
50510
20
80
60
M10
32
10
M12
50512
24
90
70
M12
54
5
M16
50516
32
120
90
M16
110
10
General Fixings
KD8 Gravity Toggle
Gypsum plasterboard, gypsum fibreboards, chipboards, fibre
cement boards, wood wool building slabs, hard fibreboards,
hollow brick ceilings, ribbed floors with hollow stone fillers,
stone ceilings, hollow ceilings, trapezoidal sheet, etc.
Description
Suitability
The fischer gravity toggles are standard cavity fixings for ceiling,
wall and floor fastenings. With their long threaded rod, they
will also bridge large wall thicknesses. The fixings are protected
against corrosion as they are zinc plated and yellow passivated.
The KD8 possess a toggle bar which automatically “locks” in
cavity spaces.
▪
▪
▪
▪
▪
▪
Machines
Steel structures
Conveyor equipment
Vending machines
Protective gratings
Diamond-drilling equipment
Technical Data
Installation
Type
Art.-No.
drill-Ø
min drill hole fixing length= min
depth
anchorage depth
thread
do
t
I=hv
[mm]
[mm]
[mm]
[mm]
max installation
torque
qty per box
MD
  pcs
M5
50505
10
45
35
M5
4
50
M6
50506
12
50
40
M6
7
50
M8
50508
16
65
50
M8
16
20
M10
50510
20
80
60
M10
32
10
M12
50512
24
90
70
M12
54
5
M16
50516
32
120
90
M16
110
10
Hollow Core Slab Fixing Systems
Building Materials
Testing
The table below shows the ultimate and maximum safe working loads of all the anchors tested into the section product of BISON
hollow core slabs or Tarmac Topfloor 150 spirall units. The tested slabs have a concrete web thickness of 25 mm and a minimum
compressive strength of 55N/mm2. These results are tabulated below starting with the highest performing anchor at the top.
Technical data
Type
FIS V 360 S injection resin with net
FHY M10 metal expansion unit
FDA-R M10 rimmed drop-in anchor
FBS 8 self tapping screw
KD 8 metal gravity toggle
M Anchor M10
FFS self tapping screws
SX10 nylon plug
FHY M6 metal expansion unit
drill-Ø
average ultimate safe working
load
load
characteristic
axial spacing
[mm]
kN
kN
≥
18
16
12
8
20
20
6
10
10
25.80
16.10
16.92
7.83
12.00
10.60
9.96
6.78
2.96
6.45
4.02
3.38
1.57
3.00
1.51
2.50
0.96
0.74
240/400
200
200
100
200
200
75
200
200
Conclusion
It is in our opinion that the fixing types tested in conjunction with hollow core slabs e.g. Bison are highly suitable for typical applications
e.g. various M + E services, timber battens, insulation, suspended ceilings etc. As the tests were conducted into the thinnest of the
manufactured slabs (150 mm overall depth), it is our opinion that the fixings would be suitable for all slab sections varying from 150
- 450 mm deep with web thicknesses greater than 25 mm.
The test results for all of the fixing tested offers good variation in ultimate loads. This allows the Engineer/Architect/End user to have
a broad range of anchors to choose from depending on both function or load performance.
Axial spacings vary from anchor to anchor due to the expansion or form-locking characteristics. In our opinion it would be suitable
to have axial spacing >200 mm for all the anchors tested except the FIS V 360 S and FFS screw. The axial spacing for the FIS V
360 S as written above are conservative, for more detailed, comprehensive and possibly smaller spacing further testing should be
carried out.
Note: The FIS V 360 S resin with FIS H N net achieved a very large concrete cone failure during testing. This cone is larger than
the characteristic cone failure expected in standard reinforced concrete due to the compressive stress patterns that the pre-stressing
induces. For further information on the testing, please contact our Technical Team.
7
Precast Hollow Core Slabs . 2012 / 01. Printed in the UK
Precast Hollow Core Slabs 2012 / 01
fischer fixings (UK) Ltd.
Whitely Road
Wallingford, Oxon, OX10 9AT
Technical disclaimer / Decisive factors
Tel: 01491 827 900
Fax: 01491 827 953
Due to the complexity of building materials, tools, fixing elements and
installation techniques a comprehensive recommendation depends on
full and detailed understanding of specific site conditions.
www.fischer.co.uk
[email protected]
This document is a factual record of results obtained under specific
conditions and does not constitute an endorsement of the suitability
of the the product tested for any specific application. This responsibility
remains with the customer.
The test results shall be used as a guide for assessement or anchor
suitability. Even when our advise is given in good faith it cannot be
binding for this reason and we cannot accept any liability for any anchor
failure due to the wrong design, misuse or wrong installation.
Phone: 01491 827 920
Fax:
01491 827 950
e-mail: [email protected]
fischer Fixings (UK) Ltd.
Whitely Road, Wallingford, Oxon, OX10 9AT.
We cannot be held responsible for any errors within this document and
we reserve the right to make technical and range modifications without
notice.
No liability is accepted for printing errors and omissions.
8