Go to Define>Load Cases>Add New Case > tick nonlinear (cracked) for the analysis typeДЈ.Define a Load Case for Immediate All Loads READ ALSO: Interpreting Slab Analysis Result using SAFEДў. Long-term Deflection = 75%LL (immediate effect) + 25% LL+DL+SDL (long-term effect). In SAFE, the following principle may apply on the modeling LONG TERM DEFLECTIONвЂ“ is the sum of immediate deflection for 75% Live load, (DL+SDL+LL) вЂ“ (DL+SDL+0.25LL) and Long-Term Deflection for DL+SDL+25% Sustained Live Load. As we commonly encountered in the design, DL stands for dead loads, LL designates the live loads and SDL denotes superimposed dead loads. This article will guide you with easy to understand step by step on doing slabвЂ™s long-term deflection analysis using the SAFE program.В Before we proceed further, let us define the following parameters used. In this article, we will focus on the analysis of long-term deflections on slabs.ДЄnalysis of Long-term deflection of the slab using SAFE program is often confusing especially for those newbies in structural design, but thatвЂ™s already a few steps away of knowing. It is also influenced by the condition of the cracking before loading, then creeping, which depends on the time passed to the time of the first loading, the environment, and other factors. Long Term-Deflection in slabs/beams is the deflection or the deformation that occurs over time due to shrinkage and temperature.

Long term deflection, SAFE Finite Element Analysis, Slab Design

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