Quasi-static Response of a Timoshenko Beam Loaded by an ...

)
Q b
)
)
s = 0.5 L
)
)
k = 100
)
k = 1000
)
k = 1087
)
k = 3000
)
k = 5000
)
k = 10000
)
Q b
)
)
s = 0.75 L
)
)
k = 100
)
k = 598
)
k = 1000
)
k = 3000
)
k = 5000
)
k = 10000
x
a) b)
)
)
s = L
)
x
Q b
)
)
k = 100
)
k = 383
)
k = 1000
)
k = 3000
)
k = 5000
)
k = 10000
x
c)
Figure 5. Influence of the stiffness parameter k )
on the shear force of the bridge Q )
b , when the front of the rigid
) )
beam is at: a) 0.5 L , b) 0.75 L and c) L )
.
25000
)
k
20000
15000
10000
5000
Compressive
forces
Tensile
forces
0
0 0,1 0,2 0,3 0,4 0,5 0,6 0,7 0,8 0,9 s ) (t) 1
Figure 6. Dimension-less interface stiffness k )
for which the pressure q )
b becomes zero at some locations, as a
function of ) s (t) .
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