Comparative studies between Indian Standard codes IS 802 (part 1/ sec 1):2015 and IS 802 (part 1/ sec 1):1995 used for overhead transmission line towers

Authors

  • Vikki K. Shah
  • V.R. Panchal
  • Bipin B. Shah

Keywords:

Transmission line tower; IS 802 (Part 1/ Sec 1):2015; IS 802 (Part 1/ Sec 1):1995; STAAD.Pro. V8i; axial forces; deflection; economy; efficiency.

Abstract

Transmission line towers are steel lattice structures and were generally analyzed and designed as per Indian Standards code IS 802 (Part 1):1995. A revised code IS 802 (Part 1/ Sec 1):2015 is introduced recently for transmission line towers with modified load combinations and material input provisions. So far no attempts have been made to compare the previous code with the revised code in terms of design, analysis efficiency and economy. The present study is aimed to compare the loading, axial forces, deflection and weight of the tower using the analysis and design procedure of previous and revised codes. Two transmission line towers of same geometry were analyzed and designed using STAAD.Pro V8i software using provisions of previous and revised codes. The conclusions drawn from the comparison shows that the axial forces at critical points as per IS 802 (Part 1/ Sec 1):2015 design is 25 to 40 %, 15 to 25% and 18 to 30% for 132kV, 400kV and 765 kV respectively less than design based on IS 802 (Part 1/ Sec 1): 1995. The difference in total weight of the tower material as per IS 802-2015 design is 6.24%, 5.92% and 5.72% for 132kV, 400kV and 765 kV respectively lesser in comparison to IS 802:1995 lesser in comparison to IS 802 (Part 1/ Sec 1): 1995 design.

Published

13-11-2024

How to Cite

Shah, V. K., Panchal, V., & Shah, B. B. (2024). Comparative studies between Indian Standard codes IS 802 (part 1/ sec 1):2015 and IS 802 (part 1/ sec 1):1995 used for overhead transmission line towers. Journal of Structural Engineering, 45(2), 155–160. Retrieved from http://14.139.176.44/index.php/JOSE/article/view/592

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Section

Articles