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July 26,2013 <br /> 190-ft Self Support Tower Structural Modification Analysis CCI BU No 826548 <br /> TEP Project Number 48167.7359,Application 185469, Revision 4 Page 5 <br /> 3) ANALYSIS PROCEDURE <br /> Table 4- Documents Provided <br /> Document Remarks Reference Source <br /> Geotechnical Report Nodarse &Associates, Inc. 3497292 CCISites <br /> Foundation Drawings ( Valmont Microflect 3497291 1 CCISites <br /> Tower Manufacturer Drawings Valmont Microflect 1 3675014 CCISites <br /> Previous Structural Analysis J Tower Engineering Professionals 3914934 -? CCISites <br /> 3.1) Analysis Method <br /> tnxTower (version 6.0.4.0), a commercially available analysis software package, was used to create a <br /> three-dimensional model of the tower and calculate member stresses for various loading cases. <br /> Selected output from the analysis is included in Appendix A. <br /> 3.2) Assumptions <br /> 1) The tower and foundation were built in accordance with the manufacturer's specifications. <br /> 2) The tower and foundation have been maintained in accordance with the manufacturer's <br /> specification. <br /> 3) The configuration of antennas, transmission cables, mounts and other appurtenances are as <br /> specified in Tables 1 and 2, and"Appendix B—Base Level Drawing". <br /> 4) When applicable, transmission cables are considered as structural components for calculating <br /> wind loads as allowed by the standard. <br /> 5) All tower components are in sufficient condition to carry their full design capacity. <br /> 6) Serviceability with respect to antenna twist, tilt, roll, or lateral translation, is not checked and is <br /> left to the carrier or tower owner to ensure conformance. <br /> 7) All antenna mounts and mounting hardware are structurally sufficient to carry the full design <br /> capacity requirements of appurtenance wind area and weight as provided by the original <br /> manufacturer specifications. It is the carrier's responsibility to ensure compliance to the <br /> structural limitations of the existing and/or proposed antenna mounts. TEP did not perform a site <br /> visit to verify the size, condition or capacity of the antenna mounts and did not analyze antennas <br /> supporting mounts as part of this structural analysis report. <br /> 8) The following material grades were assumed: <br /> a) Legs: ASTM A53-B-46 <br /> b) Bracing: ASTM A36 <br /> This analysis may be affected if any assumptions are not valid or have been made in error. Tower <br /> Engineering Professionals should be notified to determine the effect on the structural integrity of the <br /> tower. <br /> 4)ANALYSIS RESULTS <br /> Table 5-Section Capacity(Summary) <br /> Section Component Critical <br /> No. Elevation(ft) „Type Size Element P(K) eP„k,(K) cacity Pass/Fail <br /> T1 190-180 Leg P2.5x 203 2 15.028 53.866 27.9 Pass <br /> i <br /> T2 180-160 ' Leg P3.5x.226 20 3 -64.569 96.872 66.7 Pass <br /> T3 160 140 Leg P5x.258 50 9 -128.241 157.510 81.4 Pass 1.T4 140-120 Leg P8x.322 74 -202.020 330.771 61.1 ' Pass <br /> T5 1120- 113.333 1 Leg P8x.322 98 ' -226.348 330.771 ' 68.4 I Pass <br /> T6 113.333 3 <br /> 106.667 Leg P8x.322 110 -250.973 330.771 75.9 Pass <br /> tnxTower Report-version 6.0.4.0 <br />