Figure 4 Mode Shapes of Transmission Tower V. CONCLUSION: In this present study, the analysis is carried out considering all the different loads such as vertical loads, lateral loads and ongitudinal loads with the combinations specified as per ndian standards, resulting breaking load as the critica combination among the forces developed in the structure. Studies on the transmission tower also stated that the failure o eg members makes the structure more susceptible to damage. So, from this analysis it observed that the maximum axia force in the leg members is 1600kN considering the breaking oad combination and the axial force is reduced to 522.382k without considering breaking load. As the tower is assumed to be in the central span of equal distances between the adjacent towers, the breaking load will not be the major criteria for design of elements. Though dynamic analysis is performed, wind is the predominant load on these tall structures.