Advanced Methods of Structural Analysis

568 Appendix

4.Reaction at supportB:

RB!

X

YD 0 WP0:0926PC0:2407PCRBD 0 !RBD0:8519PkN

5.Bending moments at section 8 is

M 8 DRC

2

3

lD0:2407P

2

3

lD0:1605Pl:

Since the structure is symmetrical andpoints 4 and 8 are symmetrically located,

then bending momentsM 8 (if loadPis located at point 8) andM 4 (if loadPis

located at point 4) are equal. Last bending moment may be taken immediately from

Ta b l eA.13. The same result (M 8 D0:1605Pl/may be obtained for point 4, if load

Pis located at the same point 4 (the points 4 and 8 are symmetrically located).