628 
.. and .,D,*) appear, which do not coincide, unless in reality 
there is no moment of transition above the point of support C. 
2. Construct then in a similar way two points ‚D and UD 
on the supposition that the moment of transition Mc is one metreton. 
3. Prove, that the series of points yD and nD) arising on intro- 
duction of various moments of transition J/¢—y metreton, are 
similar. Then the double point D of these series, to be constructed 
by the help of oD, oD and ,D, ,D, will indicate the real situation 
of the last point of support. 
4. Starting from this point D construct the link-polygon in 
question DIX VIII VILCVIV IV B II IIA: 
| 
| : / 
| ! / of 
U 4 fae 
| { 7 o 
\ fi / | 
| a | 
(CO eo 
A B YI £ 
VOA 
1 ' 
9. In fig. 2 the working program, developed to this end, has 
been put into execution on the supposition that each of the fields 
AB, BC and CD of the beam is charged in the middle by a force 
of one ton. 
First the construction given in $$ 3—7 bas been executed for the 
beam ABC, which besides by the two forces of one ton on each of 
the fields AB and BC is supposed to be charged at its extremity 
C by a force of } ton (originating from the charge of the last field 
CD). 
1) By the indices O and . added to the letters D, is indicated that the moment 
of transition in C is zero and that the moment of transition in B has the right 
value belonging to the supposition Mc = 0. 
