Mathematical and Physical Papers. 219 



The distribution of the load between the concrete and the steel 

 -will be : 



. Lc Eclc , I^ 



{10) 



ill) 

 {12) 

 {13) 



in) 



If fc = 0, that is, if the concrete does not resist tensile stresses — 

 the condition that exists after the concrete has failed in tension, but 

 before the ultimate resistance of the reenforced beam has been 

 reached — we have: {15) 



e / . , A eM As + A.Q- 2e 



AsMii + As(li" + dii)l 



bx^^ 

 {16) Ic= — , nearly, if As and A^^ are small. ■ 



{17) Is = AsV2 + AsH^ nearly. 



If As^=0, that is if the steel reenforcement is on the tensile side 

 of the neutral axis only, 



{18) X =-^A, + ^r-^V7 A.(h-+d:^) 



bx-^ 

 {19) Ic= —-, nearly, if As is small. 



{20) Is = A,v2, nearly. 



