Fatigue limit state

HSE™ – Highway Sign Structural Engineering software includes the fatigue limit state.

HSE™ software allows for Fatigue verification according to chapter 11 of AASHTO LTS-13 (ASD) and AASHTO LTS-15 (LRFD) and Stress verification according to the Constant Amplitude Fatigue Threshold (CAFT).

The CAFT (Constant Amplitude Fatigue Threshold) for infinite life for the different fatigue detail categories are found in AASHTO LTS-13 (ASD) Table 11.9.3.1-1 and AASHTO LTS-15 (LRFD) Table 11.9.3.1-1.

To enhance productivity and ease of use, HSE™ users can efficiently set and edit all required fatigue parameters for a structure allowing to consider all applicable fatigue loads such as Galloping, Natural Wind Gust, or Truck-Induced Gust.