Analysis and modelling of the seismic behaviour of high ... - Ingegneria

4. SEISMIC RESPONSE OF PARTIAL-STRENGTH COMPOSITE JOINTS
the fact that, when the concrete slab is crushed, the joint loses its performance in
term of resistance. A detailed comprehension can be obtained by analysing the
response of the connection, under sagging and hogging bending moment.
In Figure 4.35 the experimental connection response of the CJ-INT specimen,
140
COMPLETE JOINT MOMENT (kNm)
400
300
200
100
0
-100
-200
-300
Experimental
Analytical model
-150-120 -90 -60 -30 0 30 60 90 120 150
ROTATION φ (mrad)
Figure 4.34. Comparison between experimental and
numerical joint response of the CJ-INT specimen
CONNECTION MOMENT (kNm)
500
400
300
200
100
0
-100
-200
Experimental
Model with concrete
Model without concrete
-300
-60 -50 -40 -30 -20 -10 0 10 20 30 40 50
ROTATION θ (mrad)
Figure 4.35. Comparison between experimental and
numerical (with and without concrete contribution)
connection response of the CJ-INT specimen