Civil Loading Data from Piping to Civil

I'm not sure if civil or somebody else is the designer of the piping so I'll consider piping design and civil as separate.

The piping designer should provide to the civil designer, a weight per unit of length for the vertical supports, and thermal and wind forces for all anchors and guides.

What does their contract call for? To whom are they contracted?

The normal practice is to give the following loads for Civil design of structures:

1. Pipe wt per meter

2. Wt. of Water filled in pipe per meter (to be considered due to hydrotest of piping). If the pipe is being tested pneumatically to avoid hydrotest, then only pipe wt. is considered. This is required for all pipes on the rack if this is a pipe rack.

3. If there are Electrical and Inst. cable trays above piping at higher levels as is usually the case, these are given by the respective depts.

4. If there are walkways on rack the live loads due to operating personnel is considered per standard engg. practices.

Wind loads and Earth quake loads and all other loads are calculated by Civil dept from meteorological data and standard practices from various codes. Self load of structures is also considered while designing the structures.