Civil Engineering Reference
In-Depth Information
200
150
150
2nd floor base
1st floor base
100
100
50
50
0
-50
-100
-150
-200
0
-50
-100
-150
-25
-10.0
-5.0
0.0
5.0
10.0
-20
-15.0
-10.0
-5.0
0.0
5.0
10.0 15.0
20.0
Curvature (mrad/m)
Curvature (mrad/m)
Figure 7.24.
Experimental moment-curvature relationships - CAMUS II - 0.51 g
200
150
150
1st floor base
2nd floor base
100
100
50
50
0
-50
-100
-150
-200
-250
0
-50
-100
-150
- 200
-15.0
-10.0
- 5.0
0.0
5.0
10.0
-15.0
-10.0
-5.0
0.0
5.0
10.0
15.0
20.0 25.0
Curvature (mrad/m)
Curvature (mrad/m)
Figure 7.25.
Digital moment-curvature relationships - CAMUS II - 0.51 g
The direct consequence of mass uplift is the appearance of a compression-
traction dynamic vertical load, the magnitude of which can be considerable,
depending on the values of the mass-weights, as seen before. It is important to note
that the dynamic non-linear calculations are the only ones capable of estimating
variation ranges of the dynamic vertical loads required in the designing stage.
7.4.2.2.
ICONS experimental program on u-shaped walls
The structure was a 3.60 m high load-bearing wall, with a u-shaped constant
section developed in accordance with Eurocode 8 regulations. The girder of the u-
section was 1.50 m long, with flanges 1.25 m long and 25 cm thick. The wall was
built on a foundation: a reinforced concrete square block 3.50 m long on each side
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