F155 gratting

we need to hire a designer for doing structural design for gratting: where the stair is submitted before and have comments from CM , where i need to close them attached : 1- DWG for gratting take critical case , i need the final thing to be same as detailed dwg 2-loading plan Need [login to view URL] a sketch for the needed hatch in CAD format [login to view URL] paper showing the design criteria and the material grade used 3. structural calculation for the steel item using a known program 4. design for the connection of anchor to concert using Hilti software bolts if any (HST bolt preferred ) 5. design for bolted connection [login to view URL] of welding connection note that : all seismic loads and wind load if any must be put in consideration DWG link : [login to view URL]