Concurrent Request block PHP

Hi I am on the shared hosting and I have limit of 10 Concurrent connections or simultaneous connections per user. I have noticed some uncool activities from some IP addresses. Is there a way that I can set a limit to how many concurrent connections the IP address can execute with PHP.
In other words if the IP address X reaches 8 connections block the 9th one!
Thanks

How would you differentiate a connection from a page request?

EX: I load this page. I have to send a request for every image on the page, external javascript sources… and the page content itself. My one pageload will make… well lets see. 18 requests so far, and more as time goes on (because this page tries to auto-refresh itself). And that’s just because i loaded 1 page. Each a seperate request, seperate connection, same ip.