Dear

Question 1

Normally the seismic load combinations(static or dynamic) should be absolute sum with other load cases(OPE, SUS). But CAESAR II result output is printed out with direction force( + , - ). We want to get the load case like as below.

W+T1+P1 + / - U1
:
:

How to get the absolute sum using Uniform Loads function.

Question 2

How to create the load combinations(for nonlinear restraints).

If uniform loads is applied both directions concurrently, our load combinations are as bellows;

CASE 1 (OPE) W+T1+P1
CASE 2 (OPE) W+T1+P1+U1
CASE 3 (SUS) W+P1
CASE 4 (OCC) W+P1+U1
CASE 5 (EXP) DS1-DS3
CASE 6 (OCC) DS2-DS1
CASE 7 (OCC) ST3+ST6

If uniform loads is not applied both directions concurrently, our load combinations are as bellows;

CASE 1 (OPE) W+T1+P1
CASE 2 (OPE) W+T1+P1+U1
CASE 3 (OPE) W+T1+P1+U2
CASE 4 (SUS) W+T1
CASE 5 (OCC) W+P1+U1
CASE 6 (OCC) W+P1+U2
CASE 7 (EXP) DS1-DS4
CASE 6 (OCC) DS2-DS1
CASE 7 (OCC) DS3-DS1
CASE 8 (OCC) ST4+ST5
CASE 9 (OCC) ST4+ST6

But result of CASE 8 and CASE 9 are same, so we think we can use only one case (case 8 or case 9)

In above case, U1 is positive direction of g¡¯s and U2 is negative direction of g¡¯s in X, Y, Z.