MURPHY: MAXIMUM BENDING MOMENTS: 



153 



TABLE III. 



z 



T" 



X 



X 



X 



X 



X 



T-- 



X 



T-« 



X 











































. I 



.0034 



.0:87 



.0112 



.01 10 



.0100 



.0076 



.0045 



.0023 



.0008 



.2 





.0083 



.0144 



.0163 



.0150 



.0117 



.0075 



.0037 



.0012 



•3 







.0098 



.0146 



.0150 



.0124 



.0082 



.0041 



.0014 



•4 









,0064 



.0100 



.0096 



.0067 



.0036 



.0014 



•5 











.0000 



•0033 



.0013 



.0020 



.0010 



.6 













—.0064 



-.0023 



-.0005 



.0004 



•7 

 .8 















—.0099 



-.0039 

 -.0083 



-.0004 

 —.0018 



•9 



















—.0032 



From Table III it is easily seen that Mi is a maximum for a value 

 of —— greater than .4 and less than .5, or approximately .43, and 



-=^ approximately .23. For these values 



(Mi)max=.oi65wl^ (42) 



Comparing (Mr)max with (Mi)max we see that they are equal with 

 opposite signs. 



Comparing the maximum moment produced by a concentrated 

 moving load (.o86Pn with the maximum moment produced by an 

 equal, uniformly distributed, moving load (.0165WI-) we see that the 

 former is about 5.2 times greater than the latter, or the maximum 

 moments wilt be equal in these two cases if wl^5.2P. 



