TjMax simply put is the maximum temperature that your cpu cores can attain before they will become critically hot to the point that they will get damaged. The cores are however not damaged as there is thermal protection in place which will automatically throttle your cpu speed and lower the core voltage so that your cpu temperature actually never reaches TjMax.
If in the rare event that your cpu core(s) reaches TjMax, and the system cannot thermally throttle, your system will shut down to prevent any damage.
One would require a very high cpu intensive load and bad cooling (like a failed or improperly mounted cpu heatsink fan) to actually heat up a cpu all the way to TjMax. Your cpu temps look fine assuming that your room temp is around 25-26 C.
For most day to day usage, like intense gaming, architectural renderings or running simulation software, most properly installed Intel cpus from the core i family sit under 75C. Some very compute intensive BOINC type software can push a cpu beyond these temps but then also rarely over 80 C.