Good day Mr.W, I would have loved to send this privately to you but there′s nomeans of doing that. You assisted me in solving a problem and the answers are really correct; I was also understandinv the approach however some points got me lost. I′ll be most grateful if you could help me amplify the solution. I always appreciate you since I was here in 2014. Thank you now and always. here are some of the issues i have with the solution. I thought that in the composite system the axial load would be shared among the steel and concrete thus having a portion of the load in the steel and the rest in the concrete, yet you solved for the stress in concrete and used the general axial load and total area and yet your answer was very correct but i really dont understand why and how you had to use the general area and load for just concrete. I was also shocked about how the area of the steel became had α in it. I thought it would just be ((nπd^2 )/4). I would lie if I say I dont marvel at your calculation skills sir. please explain this method for me. It is really short and concise.The other method I know also gave me the answer you got but its a really long journey. Please sir, explain in detail to me. I′m most grateful. Thanks in advance. I′ll post the auestion and your previous workings.


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Question Number 157730 by chuxx last updated on 27/Oct/21

$G o o d d a y M r . W, I w o u l d h a v e l o v e d$ $t o s e n d t h i s p r i v a t e l y t o y o u b u t$ ${t h e r e}^{'} s n o m e a n s o f d o i n g t h a t . Y o u$ $a s s i s t e d m e i n s o l v i n g a p r o b l e m$ $a n d t h e a n s w e r s a r e r e a l l y c o r r e c t; I$ $w a s a l s o u n d e r s t a n d i n v t h e a p p r o a c h$ $h o w e v e r s o m e p o i n t s g o t m e l o s t .$ $I^{'} l l b e m o s t g r a t e f u l i f y o u c o u l d$ $h e l p m e a m p l i f y t h e s o l u t i o n .$ $I a l w a y s a p p r e c i a t e y o u s i n c e I w a s$ $h e r e i n 2014 .$ $T h a n k y o u n o w a n d a l w a y s .$ $h e r e a r e s o m e o f t h e i s s u e s$ $i h a v e w i t h t h e s o l u t i o n .$ $I t h o u g h t t h a t i n t h e c o m p o s i t e$ $s y s t e m t h e a x i a l l o a d w o u l d b e$ $s h a r e d a m o n g t h e s t e e l a n d$ $c o n c r e t e t h u s h a v i n g a p o r t i o n$ $o f t h e l o a d i n t h e s t e e l a n d$ $t h e r e s t i n t h e c o n c r e t e, y e t$ $y o u s o l v e d f o r t h e s t r e s s i n$ $c o n c r e t e a n d u s e d t h e g e n e r a l a x i a l l o a d a n d$ $t o t a l a r e a a n d y e t y o u r a n s w e r$ $w a s v e r y c o r r e c t b u t i r e a l l y d o n t$ $u n d e r s t a n d w h y a n d h o w y o u h a d t o$ $u s e t h e g e n e r a l a r e a a n d l o a d f o r$ $j u s t c o n c r e t e .$ $I w a s a l s o s h o c k e d a b o u t h o w t h e$ $a r e a o f t h e s t e e l b e c a m e h a d α i n$ $i t . I t h o u g h t i t w o u l d j u s t b e \frac{n π d^{2}}{4} .$ $I w o u l d l i e i f I s a y I d o n t m a r v e l$ $a t y o u r c a l c u l a t i o n s k i l l s s i r .$ $p l e a s e e x p l a i n t h i s m e t h o d f o r m e .$ $I t i s r e a l l y s h o r t a n d c o n c i s e . T h e$ $o t h e r m e t h o d I k n o w a l s o g a v e m e$ $t h e a n s w e r y o u g o t b u t i t s a r e a l l y l o n g$ $j o u r n e y . P l e a s e s i r, e x p l a i n i n d e t a i l$ $t o m e . I^{'} m m o s t g r a t e f u l .$ $T h a n k s i n a d v a n c e .$ $I^{'} l l p o s t t h e a u e s t i o n a n d y o u r p r e v i o u s w o r k i n g s .$
Commented by chuxx last updated on 27/Oct/21

Commented by chuxx last updated on 27/Oct/21
here's your solution for the question I posted sir.
Commented by chuxx last updated on 27/Oct/21

Commented by chuxx last updated on 27/Oct/21

Commented by chuxx last updated on 27/Oct/21
These are the question and the image I sent. Thank you sir
Commented by mr W last updated on 27/Oct/21

$i^{'} l l t r y t o a n s w e r y o u r q u e s t i o n l a t e r .$
Commented by chuxx last updated on 27/Oct/21

$T h a n k y o u s i r, I^{'} l l w a i t .$
Commented by mr W last updated on 27/Oct/21

$s e e Q 157775$
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