Windows - CAESAR II - Reference Data

CAESAR II Applications Guide (2019 Service Pack 1)

PPMProduct
CAESAR II
PPMCategory_custom
Reference Data
Version_CAESAR
11.0 (2019)

Use the following guidelines when modeling windows in CAESAR II.

  • Equal leg windows are modeled using two double-acting restraints with gaps orthogonal to the pipe axis.

  • Unequal leg windows are modeled using four single-acting restraints with gaps orthogonal to the pipe axis, as shown in the example below.

  • The gap is always positive. The plus or minus sign (+/-) on the restraint determines the direction of movement before the gap closes. If there is no plus or minus sign (+/-) on the restraint, then the restraint is double-acting, and the gap exists on both sides of the line of action of the restraint. If there is a plus or minus sign (+/-) on the restraint, then the gap exists on the restrained line of action of the restraint. For example, a positive Y (+Y) restraint is restrained against movement in the negative Y-direction. Any gap associated with a positive Y restraint is the free movement in the negative Y-direction before the restraint begins acting.

Window Modeled with Four Single-Directional Restraints with Gaps