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Egcobox® FSTThermal separation of steel structures
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Egcobox® FSTThermal separation of steel structures
Contents
Thermally insulated steel/steel connection . . . . . . . . . . . . . .4
. . . . . . . . . . . . . . . . . . . . .6
Structural principles . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
Formation of the end plates . . . . . . . . . . . . . . . . . . . . . . . . .8
Type overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
Types . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
Dimensioning example . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
Design templates . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20
Installation information . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
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Thermally insulated steel/steel connection
Steel structures are a well established component of modern
architecture. As an elegant, transparent construction they
offer excellent opportunities when combined with other
materials such as glass, concrete or wood and provide the
building with a certain lightness, predominantly in industrial
and residential construction. Steel structures frequently
creating spacious and impressive large span areas.
Where steel construction is concerned, particular attention
needs to be paid in the detailing of components that
penetrate through the exterior shell of a building. With
conventional construction methods, thermal bridges are
created at the transition from the building to the projecting
component. These lead to increased energy consumption,
risk of condensation formation and the associated growth of
mould. Thermal bridges impair, not only the quality and value
of the building, but also the room climate.
According to current building regulations, thermal
bridges should be reduced. The Egcobox® FST
offers the ideal solution for the thermal isolation of
steel structures without restricting the structural
effectiveness of the support system.
Thermal separation of steel structures
Features of the Egcobox® FST
■ reduced thermal bridging
■ high structural functionality and corrosion resistance
■ CE marking according to EN 1090
■ type tested
■
■ insulation: polystyrene (standard) or rock wool on request (A1)
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Thermally insulated steel/steel connection
FZST FVST
Example:
Egcobox® FST type determination
Egcobox® FST composition
The Egcobox®
geometry and the structural requirements.
With the Egcobox® FST, distinction is made between
components for tensile force stresses as well as normal or
shear force stresses. A component consists of threaded
rods, with a diameter of 16 mm or 22 mm, arranged in pairs.
® FST is
unnecessary.
The type designation does not provide information about
the dimensions of the Egcobox® FST. The Egcobox® FST is
adapted in the factory to the existing installation geometry.
The data required for the manufacture can be easily created
with the help of the design forms (see pages 20/21).
Example 1:Egcobox® type FST16–1/1 or FST22–1/1
consisting of:
1x FZST16 component or 1x FZST22 component
and
1x FVST16 component or 1x FVST22 component
Only threaded rods of the same diameter (Ø16 or Ø22) may be used in one Egcobox® FST.
consisting of:
2x FVST16 component or 2x FVST22 component
Example 2:Egcobox® type FST16–0/2 or FST22–0/2
Type
FST
Load-bearing capacity
(Ø thread)[mm]
16
22
Number of FZST Components for tensile force
stress[pc.]
0
1
2
4
Number of FVST Components for normal and
shear force stresses[pc.]
0
1
2
4
Insulating material
–Polystyrene
SWRock wool
Egcobox® type FST 16 – 4 / 4
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6,2 °C
-5 °C 20 °C
HEA 220
Egcobox® FST16-1/1
Egcobox® FST22-1/1
15,7 °C
14,5 °C
outside inside
Fire protection
including the Egcobox®
for the entire steel support structure must also be taken into account for the
Egcobox® FST.
In the standard version, the Egcobox® FST is manufactured with polystyrene
as the insulating material. At the customer's request, however, the Egcobox®
FST can be manufactured completely from components of building material
class A1 according to EN 13501 (rock wool insulation). The use of alternative
insulation material rock wool depends on the geometry of the connection
and should be checked according to project requirements by MAX FRANK.
Fire protection measures are not implemented in the factory and must
therefore be carried out on site. The responsible specialist planner carries
Fire protection variants
■ The entire structure, including the Egcobox® FST, is to be clad on site
■ Fire protection through coating (B)
The entire steel structure including the protruding threaded rods and
level of the Egcobox® FST must additionally be protected all round by
Thermal insulationApart from the legal regulations, the owners' demands on thermal insulation
are also continually increasing. The focus here is not just on environmental
protection and the saving of heating costs, but also on a healthy room
climate and thus on the prevention of condensation and the formation of
mould.
By means of the thermal separation of steel structures, the Egcobox® FST
108
supplementary sheet 2. The Egcobox® FST makes general considerations in
the thermal calculation achievable.
Thermal bridges – comparison
to the use of the Egcobox® FST in comparison with continuous beams.
Steel structureContinuous steel beam HEA 220
Egcobox® FST16-1/1
Egcobox® FST22-1/1
Temperature factor frsi 0.45 0.83 0.78
Indoor surface temperature si,min [°C] 6.2 15.7 14.5
Point thermal transmittance [W/K] 0.86 0.24 0.32
A
B
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Structural principles
ϕ
ϕMy,k
c
ϕ
z
+Nx,Ed
-Nx,Edn
Fm
6 m
Torsion spring stiffness per threaded rod c [kN*cm/rad]
Egcobox® FST16 Egcobox® FST22
1 1 1 0 0
The following factors must be considered when assessing the rotation:
■ Only the torsion spring stiffness is calculated, the vertical spring can
be neglected.
■
■ Deformations can additionally occur in the adjoining structures.
■ Torsional forces cannot be absorbed by the individual Egcobox®
FST components and must therefore be compensated by the
complete structure.
Deformation / rotationThrough the use of an Egcobox® FST, a cantilever beam, for example, is
rigidity must be applied for the Egcobox® FST than for the steel beam. On
account of the moment action with cantilever beams, the associated torsion
from the Egcobox® FST is to be taken into account. The rotation of the
Egcobox® FST can be stated with:
ϕ [rad] Rotation angle / kink angle
My,k [kN*cm] Characteristic moment
c [kN*cm/rad] Rotation rigidity
n [pc.] Number of threaded rods per connection
Fixing informationThe following tightening torques are recommended to secure the steel
connection:
Movement jointsComponents in the steel support structures are to be designed so that the
deformations that occur do not impair the stability.
Structural damage often occurs as a result of inadequate detailed planning.
Amongst other things, different temperature expansions can lead to
stresses in the steel structure. The maximum distance between Egcobox®
FST elements that are not interrupted by a movement joint must therefore
be limited to 6.0 m.
Egcobox® FST16 Egcobox® FST22
50 Nm 80 Nm
The threaded rods must subsequently be caulked. Further notes on
installation on page 22.
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Formation of the end plates
Geometrical boundary conditions need to be observed in
the planning of the Egcobox® FST. These include minimum
distances between the components for tensile or normal and
shear force stresses as well as the minimum thicknesses
threaded rods with the same diameters (ø16 or ø22), as well
as a symmetrical layout of the components, is permitted.
Boundary conditions: Minimum thickness of Egcobox® FST end plate
1/0 1/0
0/1 0/1
1/1 1/10/2 0/2
2/2 2/20/4 0/4
4/4 4/40/8 0/8
FST16 FST22FST16 FST22FST16 FST22
Boundary conditions – component layout
the steel beam: b 2) 50 mm 2)
minimum lever arm: z ≥ 1) ≥ 1) ≥ 1) ≥ 1)
z1 ≥ 0 1) ≥ 1) ≥ 0 1) ≥ 1)
z2 ≥ 1) ≥ 1) ≥ 1) ≥ 1)
Minimum width of the end plates (w)
w ≥ 1 0 ≥ 00
Minimum thickness of the end plates (t) 4)
Nx,Ed /NX,Rd3)
1 00 t ≥ ≥ ≥ ≥
0 t ≥ ≥ 0 ≥ ≥
0 0 t ≥ ≥ 18 ≥ ≥ 8
0 t ≥ 1 ≥ 1 ≥ 0 ≥
0 t ≥ 1 ≥ 1 ≥ ≥ 18
e z2
e z2
bb
bb
≥0
≥0
z 1z
z 2
e z1
e z1
w
ey2 ey2
≥ 0100 100 ≥ 0≥ 0
ey1 ey1 100 100
h
e z2
e z2
bb
bb
≥0
h
≥0
z 1z
z 2
e z1
e z1
w
ey2 ey2
≥ 0100 100 ≥ 0≥ 0
ey1 ey1 100 100
bb
bb
z
t t
®
1 (b)2) A greater distance between the threaded rods of the Egcobox®
structural engineer.3) Tensile force of the threaded rod that is under the highest stress.4) The minimum thickness of the end plate (t) is determined on the basis of the minimum width of the end plate (w), (b) without
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Type overview
Z Ed+ Vz,E
d - Vz,Ed
D Ed
±Vy, Ed
±My,
Ed
±Mz , Ed
xz
y
±My,
Ed
±Mz , Ed
Z Ed
D Ed
±Vz,Ed±Vy, Ed
xz
y
Vy, Ed
Vz,Ed
My,
Ed
Mz , Ed
N x,Ed
xz
y
Z Ed
xz
y
Z Ed
D Ed
±Vy, Ed±Vz,E
d
xz
y
Type overview
Egcobox® type FST16–1/0, FST22–1/0Components for the transfer of tensile forces
Egcobox® type FST16–0/1, FST22–0/1Components for the transfer of normal and shear forces
Egcobox® type FST16–n/n, FST22–n/nEgcobox® for the transfer of moment, normal and shear forces
Egcobox® type FST16–0/n, FST22–0/nEgcobox® for the transfer of alternating moment, normal and shear forces
Notes on dimensioningThe sign rule must be observed when dimensioning.
Tensile forces, i.e. forces that pull on the threaded rod, are shown as positive values,
compressive forces as negative values.
See also page 18 for dimensioning examples.
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Types
8065 65
8090 90 (Ø 22)
(Ø 16)
100
≥ 1
80
ZEdDEd
8065 65
8090 90 (Ø 22)
(Ø 16)
100
≥ 1
80
ZEdDEd
≥ 180
100
≥ 180
100
≥ 180
0
≥ 180
Egcobox® FST16-1/0 Egcobox® FST22-1/0
Egcobox® type FST16–1/0, FST22–1/0Components for the transfer of tensile forces Z Ed
xz
y
1 FZST component for forces (corresponds to 2 threaded rods)
ZEd, ZRd = Nx+ (tension)DEd, DRd = Nx
Egcobox® FST16–1/0 FST22–1/0
consisting of: Force Egcobox® units[kN]
Per threaded rod[kN]
Egcobox® units[kN]
Per threaded rod[kN]
1 x FZSTZRd 182.60 91.30 352.60 176.30
DRd 84.10 42.05 176.00 88.00
Side view
Floor plan
For Egcobox® 18
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Types
100
≥ 180
≥ 180
100
≥ 180
0
≥ 180
Egcobox® FST16-0/1 Egcobox® FST22-0/1
Egcobox® type FST16–0/1, FST22–0/1Components for the transfer of normal and shear forces
8065 65
8090 90 (Ø 22)
(Ø 16)
100
≥ 1
80
ZEdDEd
Vz,Ed
Vy,Ed
8065 65
8090 90 (Ø 22)
(Ø 16)
100
≥ 1
80
ZEdDEd
Vz,Ed
Vy,Ed
Z Ed
D Ed
±Vy, Ed±Vz,E
d
xz
y
1 FVST component for normal and shear forces (corresponds to 2 threaded rods)
ZEd, ZRd = Nx+ (tension)DEd, DRd = Nx
Egcobox® FST16–0/1 FST22–0/1
consisting of: Force Egcobox® units[kN]
Per threaded rod[kN]
Egcobox® units[kN]
Per threaded rod[kN]
1 x FVST
Vy,Rd 23.00 11.50 25.00 12.50
V 76.80 38.40 58.80 29.40
ZRdVz,Ed182,6 . 120,6
1-2 Vz,Ed 91,3 .
60,3 . 21-
2 Vz,Ed352,6 . 232,6
1-2 Vz,Ed 176,3 .
116,3 . 21-
2
DRd 141.00 70.50 232.90 116.45
Side view
Floor plan
For Egcobox® 18
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Types
8065 65
8090 90 (Ø 22)
(Ø 16)
≥ 1
80
z
e z1
e z1
100
ZEd
DEd
Vz,Ed
Vy,Ed
ZEd
DEd
8065 65
8090 90 (Ø 22)
(Ø 16)
≥ 1
80
z
e z1
e z1
100
ZEd
DEd
Vz,Ed
Vy,Ed
ZEd
DEd
100
≥ 180
e z1
e z1
z 100
≥ 180
0
0
z
e z1
e z1
Z Ed+ Vz,E
d - Vz,Ed
D Ed
±Vy, Ed
±My,
Ed
±Mz , Ed
xz
y
Egcobox® FST16–1/1 FST22–1/1
consisting of: Force Egcobox® units[kN]
Per threaded rod[kN]
Egcobox® units[kN]
Per threaded rod[kN]
1 x FZSTZRd 182.60 91.30 352.60 176.30
DRd 84.10 42.05 176.00 88.00
1 x FVST
Vy,Rd 23.00 11.50 25.00 12.50
V 76.80 / – 61.60 38.40 / – 30.80 58.80 / – 58.80 29.40 / – 29.40
ZRdVz,Ed 182,6 . -113,8 .
120.61-
2 Vz,Ed
61,6
Vz,Ed 91,3 . - 56,9 . 60,3 . 2
1-2 Vz,Ed
30,8 . 2
Vz,Ed352,6 . - 113,8 . 232,6
1-2 Vz,Ed
58,8Vz,Ed176,3 . - 56,9 . 116,3 . 2
1-2 Vz,Ed
29,4 . 2
DRd 141.00 70.50 232.90 116.45
My,Ed
Mz,Ed
Egcobox® FST16-1/1 Egcobox® FST22-1/1
Egcobox® type FST16-1/1, FST22-1/1Egcobox® for the transfer of moment, normal and shear forces
Side view
Floor plan
For Egcobox® 18
1 FZST component for tensile forces (corresponds to 2 threaded rods)
1 FVST component for normal and shear forces (corresponds to 2 threaded rods)
ZEd, ZRd = Nx+ (tension)DEd, DRd = Nx
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Types
≥ 180
100
e z1
e z1
z
≥ 180
0
0
100
z
e z1
e z1
8065 65
8090 90 (Ø 22)
(Ø 16)
≥ 1
80
z
e z1
e z1
100
ZEd
DEd
Vz,Ed
Vy,Ed
ZEd
DEd ZEd
DEd
8065 65
8090 90 (Ø 22)
(Ø 16)
≥ 1
80
z
e z1
e z1
100
ZEd
DEd
Vz,Ed
Vy,Ed
ZEd
DEd ZEd
DEd
±My,
Ed
±Mz , Ed
Z Ed
D Ed
±Vz,Ed±Vy, Ed
xz
y
Egcobox® FST16–0/2 FST22–0/2
consisting of: Force Egcobox® units[kN]
Per threaded rod[kN]
Egcobox® units[kN]
Per threaded rod[kN]
1 x FVST + 1 x FVST
Vy,Rd 23.00 11.50 25.00 12.50
V 76.80 38.40 58.80 29.40
ZRd 182.60 91.30 352.60 176.30
DRd 141.00 70.50 232.90 116.45
My,Ed
Mz,Ed
In accordance with type testing, exclusively the compressively stressed threaded rod is to be taken for the determination of the shear force per Egcobox® FST. A reduction in the tensile force ZRd is therefore unnecessary.Please contact our technical support regarding any necessary additional shear force transfer in the tensile area.For Egcobox® 18
Egcobox® FST16-0/2 Egcobox® FST22-0/2
Egcobox® type FST16-0/2, FST22-0/2Egcobox® for the transfer of alternating moment, normal and shear forces
Side view
Floor plan
2 x 1 FVST component for normal and shear forces (corresponds to 2 x 2 threaded rods)
ZEd, ZRd = Nx+ (tension)DEd, DRd = Nx
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Types
8065 65
8090 90 (Ø 22)
(Ø 16)
e z2
e z2
z
e z1
e z1
≥ 1
80
100
Vz,Ed
Vy,Ed
ZEd
DEd
ZEd
DEd
n . ZEd
n .DEd
8065 65
8090 90 (Ø 22)
(Ø 16)
e z2
e z2
z
e z1
e z1
≥ 1
80
100
Vz,Ed
Vy,Ed
ZEd
DEd
ZEd
DEd
n . ZEd
n .DEd
e z2
e z2
z
≤ 35
≤ 35
≥40
e z1
e z1
≤ 35
≤ 35
≥65
≥ 180
100
e z2
e z2
z
≤ 50
≤ 50
≥ 40
e z1
e z1
≤50
≤ 50
≥ 65
≥ 180
100
Z Ed+ Vz,E
d - Vz,Ed
D Ed
±Vy, Ed
±My,
Ed
±Mz , Ed
xz
y
Egcobox® FST16–2/2 FST22–2/2
consisting of: Force Egcobox® units[kN]
Per threaded rod[kN]
Egcobox® units[kN]
Per threaded rod[kN]
2 x FZSTZRd 365.20 91.30 705.20 176.30
DRd 168.20 42.05 352.00 88.00
2 x FVST
Vy,Rd 46.00 11.50 50.00 12.50
V 153.60 / –123.20 38.40 / – 30.80 117.60 / – 117.60 29.40 / – 29.40
ZRdVz,Ed365,2 . - 227,6 .
241,21-
2 Vz,Ed
123,2
Vz,Ed91,3 . - 56,9 . 60,3 . 4
1-2 Vz,Ed
30,8 . 4
Vz,Ed705,2 . - 227,6 . 465,2
1-2 Vz,Ed
117,6
Vz,Ed176,3 . - 56,9 . 116,3 . 4
1-2 Vz,Ed
29,4 . 4
DRd 282.00 70.50 465.80 116.45
Vy,Ed
2n . DEd
Vz,Ed
2.
Vy,Ed
2 DEd
Vz,Ed
2.
(nz = ez1 / ez2)
My,Ed
Mz,Ed
2 FZST component for tensile forces (corresponds to 4 threaded rods)
2 FVST component for normal and shear forces (corresponds to 4 threaded rods)
ZEd, ZRd = Nx+ (tension)DEd, DRd = Nx
Egcobox® FST16-2/2 Egcobox® FST22-2/2
Egcobox® type FST16-2/2, FST22-2/2Egcobox® for the transfer of moment, normal and shear forces
Side view
Floor plan
For Egcobox® 18
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Types
8065 65
8090 90 (Ø 22)
(Ø 16)
e z2
e z2
z
e z1
e z1
≥ 1
80
100
Vz,Ed
Vy,Ed
ZEd
DEd
ZEd
DEd
n . ZEd
n .DEd
DEd
ZEd
n . ZEd
n .DEd
8065 65
8090 90 (Ø 22)
(Ø 16)
e z2
e z2
z
e z1
e z1
≥ 1
80
100
Vz,Ed
Vy,Ed
ZEd
DEd
ZEd
DEd
n . ZEd
n .DEd
DEd
ZEd
n . ZEd
n .DEd
e z2
e z2
z
≤ 35
≤ 35
≥ 65
e z1
e z1
≤ 35
≤ 35
≥ 65
≥ 180
100
z
e z2
e z2
≤ 50
≤ 50
≥ 65
e z1
e z1
≤ 50
≤ 50
≥ 65
≥ 180
100
±My,
Ed
±Mz , Ed
Z Ed
D Ed
±Vz,Ed±Vy, Ed
xz
y
Egcobox® FST16–0/4 FST22–0/4
consisting of: Force Egcobox® units[kN]
Per threaded rod[kN]
Egcobox® units[kN]
Per threaded rod[kN]
2 x FVST + 2 x FVST
Vy,Rd 46.00 11.50 50.00 12.50
V 153.60 38.40 117.60 29.40
ZRd 365.20 91.30 705.20 176.30
DRd 282.00 70.50 465.80 116.45
Vy,Ed
2n . DEd
Vz,Ed
2.
Vy,Ed
2 DEd
Vz,Ed
2.
(nz = ez1 / ez2)My,Ed
Mz,Ed
2 x 2 FVST component for normal and shear forces (corresponds to 2 x 4 threaded rods)
ZEd, ZRd = Nx+ (tension)DEd, DRd = Nx
Egcobox® FST16-0/4 Egcobox® FST22-0/4
Egcobox® type FST16-0/4, FST22-0/4Egcobox® for the transfer of alternating moment, normal and shear forces
Side view
Floor plan
In accordance with type testing, exclusively the compressively stressed threaded rod is to be taken for the determination of the shear force per Egcobox® FST. A reduction in the tensile force ZRd is therefore unnecessary.Please contact our technical support regarding any necessary additional shear force transfer in the tensile area.For Egcobox® 18
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Types
8065 65
8090 90 (Ø 22)
(Ø 16)
e z2
e z2
z
e z1
e z1
e y2
e y2
≥ 3
40
e y1
e y1
100
100
Vz,Ed
Vy,Ed
ZEd
DEd
ZEd
DEd
n . ZEd
n .DEd
8065 65
8090 90 (Ø 22)
(Ø 16)
e z2
e z2
z
e z1
e z1
e y2
e y2
≥ 3
40
e y1
e y1
100
100
Vz,Ed
Vy,Ed
ZEd
DEd
ZEd
DEd
n . ZEd
n .DEd
e z2
z
e z2
≤ 35
≤ 35
≥ 40
e z1
e z1
≤ 35
≤ 35
≥ 65
≥ 340
ey2 ey2
ey1 ey1 100 100
e z2
e z2
≤ 50
≤ 50
≥ 40
e z1
e z1
≤ 50
≤ 50
≥ 65
≥ 340
ey2 ey2
ey1 ey1 100 100
zMy,Ed
Mz,Ed
Egcobox® FST16-4/4 Egcobox® FST22-4/4
Egcobox® type FST16-4/4, FST22-4/4Egcobox® for the transfer of moment, normal and shear forces
Z Ed+ Vz,E
d - Vz,Ed
D Ed
±Vy, Ed
±My,
Ed
±Mz , Ed
xz
y
Egcobox® FST16–4/4 FST22–4/4
consisting of: Force Egcobox® units[kN]
Per threaded rod[kN]
Egcobox® units[kN]
Per threaded rod[kN]
4 x FZSTZRd 730.40 91.30 1,410.40 176.30
DRd 336.40 42.05 704.00 88.00
4 x FVST
Vy,Rd 92.00 11.50 100.00 12.50
V 307.20 / – 246.40 38.40 / – 30.80 235.20 / – 235.20 29.40 / – 29.40
ZRdVz,Ed730,4 . - 455,2 .
482,41-
2 Vz,Ed
246,4
Vz,Ed91,3 . - 56,9 . 60,3 . 8
1-2 Vz,Ed
30,8 . 8
Vz,Ed1.410,4 . - 455,2 . 930,4
1-2 Vz,Ed
235,2
Vz,Ed176,3 . - 56,9 . 116,3 . 8
1-2 Vz,Ed
29,4 . 8
DRd 564.00 70.50 931.60 116.45
4 FZST component for tensile forces (corresponds to 8 threaded rods)
4 FVST component for normal and shear forces (corresponds to 8 threaded rods)
ZEd, ZRd = Nx+ (tension)DEd, DRd = Nx
Vy,Ed
2n . DEd
Vz,Ed
2.
Vy,Ed
2 DEd
Vz,Ed
2.
(ny = ey1 / ey2)
(nz = ez1 / ez2)
Side view
Floor plan
For Egcobox® 18
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Types
e z2
e z2
≤ 35
≤ 35
≥ 65
e z1
e z1
≤ 35
≤ 35
≥ 65
≥ 340
ey2 ey2
ey1 ey1 100 100
z
e z2
e z2
≤ ≤
50≥
65
e z1
e z1
≤ 50
≤ 50
≥ 65
≥ 340
ey2 ey2
ey1 ey 1 100 100
z
Egcobox® FST16-0/8 Egcobox® FST22-0/8
Egcobox® type FST16-0/8, FST22-0/8Egcobox® for the transfer of alternating moment, normal and shear forces
8065 65
8090 90 (Ø 22)
(Ø 16)
e z2
e z2
z
e z1
e z1
e y2
e y2
≥ 3
40
e y1
e y1
100
100
Vz,Ed
Vy,Ed
ZEd
DEd
ZEd
DEd
n . ZEd
n .DEd
ZEd
DEd
n . ZEd
n .DEd
8065 65
8090 90 (Ø 22)
(Ø 16)
e z2
e z2
z
e z1
e z1
e y2
e y2
≥ 3
40
e y1
e y1
100
100
Vz,Ed
Vy,Ed
ZEd
DEd
ZEd
DEd
n . ZEd
n .DEd
ZEd
DEd
n . ZEd
n .DEd
Vy,Ed
2n . DEd
Vz,Ed
2.
Vy,Ed
2 DEd
Vz,Ed
2.
(ny = ey1 / ey2)
(nz = ez1 / ez2)
±My,
Ed
±Mz , Ed
Z Ed
D Ed
±Vz,Ed±Vy, Ed
xz
y
Egcobox® FST16–0/8 FST22–0/8
consisting of: Force Egcobox® units[kN]
Per threaded rod[kN]
Egcobox® units[kN]
Per threaded rod[kN]
4 x FVST + 4 x FVST
Vy,Rd 92.00 11.50 100.00 12.50
V 307.20 38.40 235.20 29.40
ZRd 730.40 91.30 1,410.40 176.30
DRd 564.00 70.50 931.60 116.45
My,Ed
Mz,Ed
2 x 4 FVST component for normal and shear forces (corresponds to 2 x 8 threaded rods)
ZEd, ZRd = Nx+ (tension)DEd, DRd = Nx
Side view
Floor plan
In accordance with type testing, exclusively the compressively stressed threaded rod is to be taken for the determination of the shear force per Egcobox® FST. A reduction in the tensile force ZRd is therefore unnecessary.Please contact our technical support regarding any necessary additional shear force transfer in the tensile area.For Egcobox® 18
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Dimensioning example
e z2
e z2
z z
e z1
e z1
ey2 ey2
zy
≥ 0100 100 ≥ 0≥ 0
ey1 ey1 100 100 1 3
2 4
obererBereich
untererBereich
Z Ed- Vz,E
d
+ Vz,Ed
D Ed
+ Vy, Ed
My,
Ed
Mz , Ed
xz
y
nFZST 4 Number of FZST components for tensile forcenFVST 4 Number of FVST components for normal/shear force
upper areany,o n
371 mme 1 141 mme 230 mm n = e 1 / e = 0.613
lower areany,u n
y 160 mmey1 30 mmey2 130 mm ny = ey1 / ey2 = 0.231
Effects Geometry
upper area
lower area
Egcobox® FST16–4/4
consisting of: Force Egcobox® units[kN]
Per threaded rod[kN]
4 x FZSTZRd 730.40 91.30
DRd 336.40 42.05
4 x FVST
Vy,Rd 92.00 11.50
V 307.20 / – 246.40 38.40 / – 30.80
ZRdVz,Ed730,4 . - 455,2 .
482,41-
2 Vz,Ed
246,4
Vz,Ed91,3 . - 56,9 . 60,3 . 8
1-2 Vz,Ed
30,8 . 8
DRd 564.00 70.50
ZEd, ZRd = Nx+ (tension)DEd, DRd = Nx
Existing load effects and connection geometry
FST resistances (see page 16)
Dimensioning example FST16-4/4 1
3
2
+ My, Ed 100 kNm± M 20 kNm± Vy, Ed 75 kN+ V 150 kN+ Nx, Ed 200 kN
(4 FZST components for tensile forces + 4 x FVST components for normal / compressive force)
The boundary conditions for the layout of the components are to be observed (page 8)
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Dimensioning example
Determination of the effectTensile or compressive effect per rod:
4
5
Vy, Ed Vy,Rd Verification Vy, Ed ⁄ Vy, Rd
75.0 kN 92.0 kN 0.82
Vz, Ed Vz,Rd Vy,Ed ⁄ Vy,Rd
150.0 kN 307.2 kN 0.49
(75.0/92.0) + (150.0/307.2) = (Vy, Ed/Vy, Rd) + (V /V ) < 1 0.90
Shear force
Interaction
Zx, Ed = 2 . ey2 + 2 . ey . ny
Mz, EdMz, Ed = Zx, Ed, Mz . 2 . ey2 + Zx, Ed, Mz . ny . 2 . ey1 =
2 . nFVST / nz, 0
± Zx, Ed
2 . 4/2
± 73,0 kNZx, Ed, Stab, Mz = = = ± 18,3 kN
= ± 73,0 kN Zx,Ed = 2 . 0,130 m + 2 . 0,030 m . 0,231
± 20 kNm
Rod Fx,Ed Fx,Rd3
Verification
Fx,Ed
Fx,Rd
1 F1,Ed = Nx,Ed,Rod + Zx,Ed,Rod,My + Z = 12.5 kN + 39.2 kN + 18.3 kN = 70.0 kN 91.3 kN 0.77
2 F2,Ed = Nx,Ed,Rod – Zx,Ed,Rod,My + Z = 12.5 kN – 39.2 kN + 18.3 kN = – 8.4 kN – 70.5 kN 0.12
3 F3,Ed = Nx,Ed,Rod + Zx,Ed,Rod,My – Z = 12.5 kN – 39.2 kN + 18.3 kN = 33.4 kN 91.3 kN 0.37
4 F4,Ed = Nx,Ed,Rod + Zx,Ed,Rod,My – Z = 12.5 kN – 39.2 kN – 18.3 kN = – 45.0 kN – 70.5 kN 0.64
1) Only the outer rods are examined, since they are decisive on account of the structure.2) Tensile forces are applied positively, compressive forces negatively.3) For Fx,Ed > 0, Fx,Rd = ZR,d applies; for Fx,Ed < 0, Fx,Rd = DR,d applies
Nx, Ed, Stab = = 12,5 kNnFZST . 2 + nFVST
. 2
Nx, Ed
4 . 2 + 4
. 2
200 kN =
Zx, Ed = 2 . ez2 + 2 . ez1 . nz
My, EdMy, Ed = Zx, Ed, My . 2 . ez2 + Zx, Ed, My . nz . 2 . ez1 =
2 . nFVST / ny, 0
Zx,Ed
2 . 4/2
156,8 kNZx,Ed, Stab, My = = = 39,2 kN
from Nx:
from My:
from Mz:
Verifications5.1 Verification of the tension- / compression-stressed rods1) 2)
5.2 Verification of the shear force (complete Egcobox® system)
In accordance with type testing, exclusively the compressively stressed threaded rod is to be taken for the determination of the shear force per Egcobox® FST.Please contact our technical support regarding any necessary additional shear force transfer in the tensile area.
= 156,8 kN 2 . 0,230 m + 2 . 0,141 m . 0,631
100 kNmZx, Ed =
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Design templates
Egcobox® FST-1/0 Ø 16 mm Ø 22 mm
Polystyrene Rock wool*
h = ........ mm (≥ 60 mm)
h1 = ........ mm (≥ 30 mm)
h2 = ........ mm (≥ 30 mm)
b = ........ mm (≥ 180 mm)
b1 = ........ mm (≥ 40 mm)
b2 = ........ mm (≥ 40 mm) ........ pcs
........ pcs
Egcobox® FST-1/1 Ø 16 mm Ø 22 mm
Polystyrene Rock wool*
h = ........ mm (≥ 125 mm)
h1 = ........ mm (≥ 30 mm)
h2 = ........ mm (≥ 40 mm)
b = ........ mm (≥ 180 mm)
b1 = ........ mm (≥ 40 mm)
b2 = ........ mm (≥ 40 mm)
Egcobox® FST-2/2 Ø 16 mm Ø 22 mm
Polystyrene Rock wool*
h = ........ mm (≥ 230 mm)
h1 = ........ mm (≥ 30 mm)
h2 = ........ mm (≥ 40 mm)
b = ........ mm (≥ 180 mm)
b1 = ........ mm (≥ 40 mm)
b2 = ........ mm (≥ 40 mm)
= ........ mm (≥ 55 mm)
1 = ........ mm (≥ 40 mm)
2 = ........ mm (≥ 65 mm)
Egcobox® FST-4/4 Ø 16 mm Ø 22 mm
Polystyrene Rock wool*
h = ........ mm (≥ 230 mm)
h1 = ........ mm (≥ 30 mm)
h2 = ........ mm (≥ 40 mm)
b = ........ mm (≥ 340 mm)
b1 = ........ mm (≥ 40 mm)
b2 = ........ mm (≥ 40 mm)
b3 = ........ mm (≥ 60 mm)
= ........ mm (≥ 55 mm)
1 = ........ mm (≥ 40 mm)
2 = ........ mm (≥ 65 mm)
h
h 1h 2
b1 100 b2
b
h
h 1h 2
z
b1 100 b2
b
h
h 1h 2
z 1z 2
z
b1 100 b2
b
h
h 1h 2
z 1z 2
z
b1 100 100b3
bb2
........ pcs
........ pcs
Pay attention to the maximum axis distances between the components and the steel beam flange as well as the recommended end plate thicknesses (see page 8)Custom solutions can be created in cooperation with the support of our technical advice.* MAX FRANK.
= ........ mm (≥ 55 mm)
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Design templates
Egcobox® FST-0/1 Ø 16 mm Ø 22 mm
Polystyrene Rock wool*
h = ........ mm (≥ 80 mm)
h1 = ........ mm (≥ 40 mm)
h2 = ........ mm (≥ 40 mm)
b = ........ mm (≥ 180 mm)
b1 = ........ mm (≥ 40 mm)
b2 = ........ mm (≥ 40 mm) ........ pcs
Egcobox® FST-0/2 Ø 16 mm Ø 22 mm
Polystyrene Rock wool*
h = ........ mm (≥ 145 mm)
h1 = ........ mm (≥ 40 mm)
h2 = ........ mm (≥ 40 mm)
b = ........ mm (≥ 180 mm)
b1 = ........ mm (≥ 40 mm)
b2 = ........ mm (≥ 40 mm) = ........ mm (≥ 65 mm)
Egcobox® FST-0/4 Ø 16 mm Ø 22 mm
Polystyrene Rock wool*
h = ........ mm (≥ 275 mm)
h1 = ........ mm (≥ 40 mm)
h2 = ........ mm (≥ 40 mm)
b = ........ mm (≥ 180 mm)
b1 = ........ mm (≥ 40 mm)
b2 = ........ mm (≥ 40 mm)
= ........ mm (≥ 65 mm)
1 = ........ mm (≥ 65 mm)
2 = ........ mm (≥ 65 mm) ........ pcs
Egcobox® FST-0/8 Ø 16 mm Ø 22 mm
Polystyrene Rock wool*
h = ........ mm (≥ 275 mm)
h1 = ........ mm (≥ 40 mm)
h2 = ........ mm (≥ 40 mm)
b = ........ mm (≥ 340 mm)
b1 = ........ mm (≥ 40 mm)
b2 = ........ mm (≥ 40 mm)
b3 = ........ mm (≥ 60 mm)
= ........ mm (≥ 65 mm)
1 = ........ mm (≥ 65 mm)
2 = ........ mm (≥ 65 mm) ........ pcs
h
h 1h 2
b1 100 b2
b
h
h 1h 2
z
b1 100 b2
b
h
h 1h 2
z 1z 2
z
b1 100 b2
b
h
h 1h 2
z 1z 2
z
b1 100 100b3
bb2
........ pcs
Pay attention to the maximum axis distances between the components and the steel beam flange as well as the recommended end plate thicknesses (see page 8)Custom solutions can be created in cooperation with the support of our technical advice. MAX FRANK.
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Installation information
?top !
16 50
22 80
Fm= NmØ = mm
16 50
22 80
Fm= NmØ = mm
1
4
2
5
3
6
These installation instructions can only be regarded as a recommendation. They are no substitute for the specialised knowledge required for the installation. The instructions are always maintained to the latest state of the art and are constantly updated. We therefore expressly reserve the right to make technical changes, even without prior notice to the customer. The respectively valid version can be found on our website: www.maxfrank.com. In addition, our General Terms and Conditions of Sale apply.
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Max Frank GmbH & Co. KG
Mitterweg 1
94339 Leiblfing
Germany
Tel. +49 9427 189-0
Fax +49 9427 1588
info@maxfrank.com
www.maxfrank.com