Civil Engineering Reference
In-Depth Information
Fig. 9.5
External load and load vector at element level
At a global level the load vector is illustrated in Fig. 9.2. At element level (i.e. associated
with an arbitrary element
n
) the load vector is illustrated on Fig. 9.5. It is defined by
T
n
⎧
[
]
R
=
RRRRRR
⎡ ⎤
=
⎢
⎣ ⎦
R
1
1
2
3
4
5
6
⎪
⎨
⎪
n
1
2
tot
tot
()
R
t
where
(9.37)
n
tot
R
T
n
[
]
R
=
RRRR R R
n
tot
2
7
8
9
10
11
12
⎩
n
tot
tot
These are external nodal forces (in element axis) caused by the distributed element load
vector (see Fig. 9.5 and Eq. 5.8)
