Civil Engineering Reference
In-Depth Information
Table 2.12 Permitted Welding Processes and Examples of Application Specified in
EC2 [
2.27
]
Bars in
Compression
b
Bars in Tension
a
Loading Case
Welding Method
Predominantly
static
Flash welding
Butt joint
Manual metal arc
welding and metal arc
welding with filling
electrode
Butt joint with
joint with other steel members
Metal arc active
welding
b
-
Butt joint
with
'
20 mm
Friction welding
Butt joint and joint with other
steels
Resistance spot welding
Not
predominantly
static
Flash welding
Butt joint
Manual metal arc
welding
-
Butt joint
with
'
14 mm
Metal arc active
welding
b
-
Butt joint
with
'
14 mm
Resistance spot welding
a
Only bars with approximately the same nominal diameter may be welded together.
b
Permitted ratio of mixed diameter bars
0.57.
c
For bearing joints
'
16 mm.
d
For bearing joints
'
28 mm.
to the yield stress (
f
t
/
f
y
)
k
and the elongation at maximum force,
e
uk
.
Figure 2.10
shows stress-strain curves for typical hot-rolled and cold-
worked steel. Values of
k¼
(
f
t
/
f
y
)
k
and
e
uk
for classes A, B, and C are
shown in
Table 2.13
.
Welding processes for reinforcing bars shall be in
accordance with
Table 2.12
,
and the weldability shall be in accordance
anchorage length of welded fabric shall be sufficient to resist the design
forces. The strength of the welded joints of welded fabric may be assumed
to be adequate if each welded joint can withstand a shearing force not less
than 25% of a force equivalent to the specified characteristic yield stress
times the nominal cross-sectional area. This force should be based on
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