LE PONT VIERENDEEL. 



LIII. 



It should be noted that there is a point of inflexion in each of 

 the three outer panels, very near the centre point of each bay of 

 the flange. 



The complete stresses, due to total load wholly distributed, are 

 given in the accompanying tables. 



The Bending moments on the verticals, due to the horizontal 

 stresses at their points of inflexion, are calculated about a point 

 0*75 metres from their point of inflexion, that being the point 

 where the vertical commences to round off to meet the flange 

 A brief description of these tables may prove useful. 



Stresses on the Verticals at a point 0-75 m. distant 

 from Mid-height. 

 abcdefghk 





Direct 



Stress 



Comprs. 



P. 



Moment 



s 2 



10«l 2 

 V 



STRESSES 

 in kgs. per sq. millim. 



Stresses 

 in Tons 



u 



9 

 >- 



P x 075. 



millim. 



in 

 kgs. mtrs. 



Direct. 



From 

 Bending 



Total. 



per 



sq. in. 



1 



29,000 



28,563 



21,450 



19,650 



4,700 



1-5 



4-6 



6-1 



3-9 



2 



5,800 



42,525 



31,875 



19,650 



4,700 



0-3 



6-8 



7-1 



4-5 



3 



5,800 



36,827 



27,600 



19,000 



4,400 



0-3 



6-3 



6-6 



4-2 



4 



5,800 



15,186 



11,400 



18,250 



4,300 



0-3 



2-7 



3-0 



1-9 



5 



5,800 



6,074 



4,552 



18,250 



4,300 



0-3 



1-1 



1-4 



0-9 



Stresses in Flanges at points One Metre distance from 



Centre Lines (Vertical) of each Panel. 

 Panel. a b c d e f g h 



1 



>trcss 



orizon- 



ssatln- 



Point 



cal. 



Si 



in 



millim. 



Bending 

 Moment 



lO* 1-2 



V 



. STRESSES. 



3 



Direct £ 

 from H 

 tal Stre 

 flexion 

 of Verti 



from in 

 Diagram, kgs. mtrs. 



Kilos per sq. millim. 



Tons per 

 sq. in. 



\ Left 28,563 

 1 i Eight 28,563 

 „ Left 71,088 

 * \ Eight 71,088 

 „ \ Left 107,915 

 6 j Eight 107,915 

 A { Left 123,101 

 4 '/ Eight 123,101 



( Left 129,175 

 &\ Centre 129,175 



( Eight 129,175 



19,200 

 19,200 

 19,200 



22,840 

 22,840 

 22,840 

 22,840 

 22,840 

 22,840 

 22,400 

 22,840 



25,000 



21,500 



12,500 



23,000 



11,000 



13,000 



3,000 



14,000 



9,238 



9,238 



9,238 



4,270 

 4,270 

 4,270 

 6,200 

 4,200 

 6,200 

 6,200 

 6,200 

 6,200 

 5.600 

 6,200 



1-5 



1-5 

 3-7 

 3-1 

 4-7 

 4-7 

 5-4 

 5-4 

 5-7 

 5-8 

 5-7 



5-9 

 51 

 3-0 

 3-7 

 2-6 

 2-1 

 0-5 

 2-2 

 1-5 

 1-7 

 1-5 



7-4 

 6-6 

 6-7 

 6-8 

 7-3 

 6-8 

 5-9 

 7-6 

 7-2 

 7-5 

 7-2 



4-7 

 4-2 

 4-2 

 4-3 

 4-6 

 4-3 

 3-7 

 4-8 

 4-6 

 4-7 

 4-6 



