Lattice Transmission Structures: Challenging Modeling Scenarios That Require Non-Traditional Analysis Methods

The purpose of this paper is to identify situations that require non-standard modeling within lattice structures. These situations include the use of non-standard cross-sections, non-standard materials, and members experiencing combined loadings. Further, this paper provides approaches to help engineers move forward with valid analysis of these non-standard scenarios. Some of these approaches include using alternative software aids to fill analysis gaps, referencing alternative guides or standards, and leveraging spreadsheet style formatting to expedite repetitive calculations. Paramount to all of these processes is the engineer’s understanding of what analysis is necessary for accurate results. Coupled with this understanding is awareness of what checks are being performed by any software packages that are used to streamline the analysis effort. This understanding of what needs to be checked versus what is being checked by the software is the key element in eliminating analysis gaps and obtaining accurate results.