Dear All engineers,
BY setting Friction multiplier to ZERO in Static Analysis Load case option, this mean frictions are not consider.Does anyone in this forum who can give me idea what are the steps to be consider in calculating loading data to civil?
I know that thermal reaction force is one to be consider but what load cases and standard report I mean do I need to consider in order to gather a data that can be used for civil?

Please share your good Explanation..!



Nald

Dear All engineers,
BY setting Friction multiplier to ZERO in Static Analysis Load case option, this mean frictions are not consider.Does anyone in this forum who can give me idea what are the steps to be considered in calculating loading data to civil in relation to above setting?
I know that thermal reaction force is one to be considered but what load cases and standard report I mean do I need to consider in order to gather a data that can be used for civil?

Please share your good Explanation..!



Nald

For sure the OPE (operating) case(s). You should consider runs with and without friction - so you can use the worst case. (Remember, friction can only hurt you.) Other cases may be needed for civil loads depending on the job.

Thank you Mr. Richard Ay for your suggestion.

Dear Nald,
Could you tell me how you do a piping loading data using CAESAR I??
Are you modelling the structure and the pipe together in one model?
In case a pipe rack with many line how the way you do that?
Please enlighten me....because for piping loading data we usually using an excel format, that will calculate the Dead load of pipe and its content also its insulation, then we transmit it to civil, after that if we want to check the anchor load then we can use CAESAR, but most all the time it can be done manually, even for large plant.
Thanks.

Dear Nald,
Richard is right that you have to consider the worst case means you have to run the static analysis both with and without friction and take the maximum load from both cases.
But in case of piperack, be careful while you are entering friction multiplier as your input. If you are entering friction multiplier on the supports on both side of a directional anchor it may results in cancelling out the effect of friction on DA.

Tengku syahdilan,

Piping loading data you mean is different from the data that can be used for civil. The data we gather from Caesar-II output report is due to thermal load and impact load caused by temperature and relief valve & slug flow respectively. The cases and type of report to be consider will depend on the type of support for which load is being carried. Based on the report, we can identify which load on restraint that necesssary to inform civil. Note that small values for thermal loads are need not to consider for loading data to civil.
I assumed that your company has standard to identify values for thermal load that need for civil loading data.

regards

Nald

oh i see and understand the point now. Thanks...