Ask HN: Can university sites be shut down by SOPA?

It's common to post full pdf of one's own publications (have done it myself during my grad school days). Most of these are copyrighted by the corresponding organization (like ACM/IEEE etc) where the publication had appeared/about to appear. This is common practice and usually considered "ok" if you authored/co-authored the paper. Does this violate sopa (since it's technically copyrighted material and you need to pay IEEE/ACM to access it)? Can university sites be shut down?