Hi! I am checking the structural integrity of an existing trussed tower ( 17m high ) using SAP2000. I found out that the main angle bars used are not within the provision for seismically compact section ( aisc 341-10 ). But since trussed towers are considered as non-building structures, i am thinking if I still need to comply with this specific requirement. As far as I know, seismically compact section shall be complied if you have moment resisting frame.
My question is do I still need to comply with this provision ? The tower has been standing for more than 15 years and in terms of strength, the sections are still large enough. Its distance to the nearest fault line is around 13 km.
To determine whether you need to comply with the provision for Seismically Compact Section for Trussed Tower, you should refer to the applicable building codes and standards in your region. One important reference to consider is the Seismic Provisions for Structural Steel Buildings published by the American Institute of Steel Construction (AISC). This document provides guidelines and requirements for designing steel structures, including considerations for seismic events. It covers topics such as connection detailing, member design requirements, and overall structural behavior during earthquakes. Additionally, the use of specific materials, such as Hollow Structural Sections (HSS), may have implications for seismic design. ASTM A1085 steel is often preferred for seismic applications due to its tighter mass tolerances, high yield strength, and reduced variability in yield and tensile strength compared to other materials.
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