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Page | 4 <br /> <br />3) ANALYSIS PROCEDURE <br /> <br />Table 2 - Documents Provided <br />Document Remarks Reference <br />Construction Drawings M Squared Site ID: CLL03237, Rev. B dated June 10, 2025 <br />Site Photos AT&T Mobility/ ESDT Portal - <br />Previous Mount Analysis Reliant Land Service Site Name: AT&T / Orange County Register Building <br />Rev. 0 dated August 20, 2018 <br /> <br /> 3.1) Analysis Method <br /> <br />RISA-3D (Version 22.0.1), a commercially available analysis software package, was used to create a three-dimensional model of the <br />antenna mounting system and calculate member stresses for various loading cases. <br /> <br />Load Calculator v1.5, a tool internally developed by Ladera Engineering Group, was used to calculate wind and seismic loading on all <br />appurtenances, dishes and mount members for various loading cases. Selected output from the analysis is included in Appendix B <br />“Software Input Calculations”. <br /> <br />3.2) Assumptions, Liability Waiver, and Limitations <br /> <br />1) The antenna mounting system was properly fabricated, installed and maintained in good condition in accordance with <br />its original design and manufacturer's specifications. <br />2) The configuration of antennas, mounts, and other appurtenances are as specified in Table 1 and the referenced <br />drawings. <br />3) All member connections are assumed to have been designed to meet or exceed the load carrying capacity of the <br />connected member unless otherwise specified in this report. <br />4) The analysis will be required to be revised if the existing conditions in the field differ from those shown in the above - <br />referenced documents or assumed in this analysis. No allowance was made for any damaged, missing, or rusted <br />members. <br />5) All bolted connections are pretensioned in accordance with Table 8.2 of the RCSC, 2014 Standard. <br />6) Steel grades have been assumed as follows, unless noted otherwise: <br /> <br /> Pipe ASTM A53 (GR 35) <br /> Connection Bolts ASTM A325 <br /> U-Bolts ASTM A307 <br /> <br />This analysis may be affected if any assumptions are not valid or have been made in error. Ladera Engineering Group should <br />be notified to determine the effect on the structural integrity of the antenna mounting system. <br /> <br />