r. i -;-.:> . : 



detenmned Tin- mctiuMi L- tippled tin il flati i 

 maxiinuni live-load ttonmm f-i th. thrv^hingpd arch shown 

 in Fig. 15. Cooper's 40 loading is used 



rxt are drawn the influence lines for the horiaonul 



and vertical components of the reaction at the left hingr 



The vertical comjx IK the same as for a simple 



span L. Tin- !>>.. /<ntal component //, equals the bending 



lie centre of the span /. ir. !! I > the depth A. 



!ifluciicr-lin,-(nlin:i(cnforaJl niembcf are now found l*\ 

 drawing fi\ r Maxwell diagrams, one of which i* rrpnxi 



ig. 16. From thr influence lines for \ ami // 

 v:ilu- I is .8889 and Hi its .2187 for a one-pound load 

 at l/i. The external load* acting on t|, ( . left half - 

 :mli an- tiu'iiasshown in Fig. iOa. The load line osieya 

 in 1 ig. 1Gb is drawn to a scale of 10" 1 pound, and the 

 Maxwell diagram completed in the u*ual way. The sealed 



TABLE A 

 I.UKNCB-LINB OKDIXATCH rot Tiiiil IllPnin An 





1 lh.t U, 



IfeMtfc 



C/.1/,- 



iw!" 



I/.C/4- 



ULi-. 

 I^L,-. 



i 



171 



M 

 _'ji 



J17 



- .342 



":"" 

 '.'! 



- I 014 - 



r : /. : 

 iM, 



//. 



i 



on 



in 



)OQ 



su 



044 



m 



HH 



+ 150 



M 



. s7s 



Ml 









- 145 



- 075 



M 



- 490 



:;-. 

 - 



m 



+ 

 + 





 





m 



M 



317 



r 



Hi 



1*0 



> 



o \\\\ 



I : 



:: 



04 



N 



M 



...: 



