![]() ![]() The roller support distance is at L/2, and this is the continuation of the frame, If we have a look at the left side portion, where we have P/2 at the left side from left to right and other load P/2 at the right joint acting to the right, from the sum of forces at the x-direction ∑Fx=0, ∑Fy=0, ∑M=0. Estimation of the portal frame reactions. If we consider, the portal frame height is h, the lower joint is A, the upper left corner is b and the right corner is c and the last support is D. We can assume that we have roller support in the middle of the girder.In the next slide, after we have created roller support at the middle of the girder, the support reactions
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