Identify the type of support at each location along the beam

[tzx9633]

Homework Statement

I have problem with the carried over factor in photo 670 . It's not stated the type of support at point A , B , C , D and E . But , at joint at A and E , it's fixed support because the author use distribution factor of 1 at A and E ( in photo 669)

Homework Equations

The Attempt at a Solution

But , i am not sure what type of support at B , C , D are . For the green arrow , we can see that the author use carried forward factor of 0 , but for the 2 red arrows , we can see that the author used carried forwards factor of 0.5 . I 'm confused now . What type of supports at B , C , D are ? I think the author made the mistakes here . He can't use different carried forward factor , which are 0 and 0.5 at the support B , C and D .

 

[tzx9633]

Hi a, anyone can reply ?

 

[tzx9633]

I think the author made the mistakes here . He can't use different carried forward factor , which are 0 and 0.5 at the support B , C and D .