Loading situation-earthquake force calculation relationship

k0ry

New Member
Hello, There is a point in the program that I cannot solve, and I will try to explain it with another example to simplify my own problem. Let's consider a 3-span silo carrier stand as in the attached picture file. 3 silos will sit on this stand. We will create combinations from these silos when they are full or empty. "silo-1" "silo-2" "silo-3" when I create loading status as "silo-1" "silo-2" "silo-3" instead of using the "G" loading status that the program automatically assigns while influencing the loads of the silos on the support points on the beam. I see that the loading conditions are not included in the earthquake calculation. Is it possible to add "silo-1" "silo-2" "silo-3" uploads to the mass source tab as in Sap2000?
 
"k0ry":18jlcxs4" said:
Hi, There is a point in the program that I cannot solve, and I will try to explain it with another example to simplify my own problem. Let's consider a 3-span silo carrier table as in the attached picture file. 3 silos will sit on this stand. We will create combinations from the silos when they are full-empty.When I create a loading status as "silo-1" "silo-2" "silo-3", we do not use the "G" loading status that the program automatically assigns while affecting the loads of the silos on the support points on the beam. I see that the loading conditions of silo-2" "silo-3" are not included in the earthquake calculation. Is it possible to add "silo-1" "silo-2" "silo-3" loadings to the mass source tab as in Sap2000?
Hello, When you define the Loading state, you need to relate it to the external load and/or impact. For example 1) Define the Loading1 loading state 2) Do not assign 1 tf horizontal load to an element 3) Associate the load you defined to Load1. Now in the system It means you have a 1 ton download called Load1. You wrote "I see that the loading conditions are not included in the earthquake calculation": Load1 is a stand-alone load. If you define earthquake(E)+load1 combination, you add loading1 to earthquake loading.
 
In the file you sent, I added a defined subordinate load to the load 1 on the column. This load was not included in the earthquake calculation. (Additional file: LOAD AFFECTING THE FLOORING) Because load case named load 1 is not defined as g in the formula wi=gi + n qi. We can assign a mass source for the loads to be included in the earthquake calculation and make the extra loads added to the earthquake calculation automatically. (Additional file: mass source) Can I add the load case named Load 1 to the automatic earthquake calculation. Best regards.
 
It is not possible to do what you want as you first asked... However, it can be as follows: You can define the load you want to add as mass in an earthquake in G loading. You should also define separate loads for the load cases you want to look at.
 
Back
Top