ON EVALUATION OF THE INDIAN STANDARD TOPOGRAPHY FACTOR FOR DESIGN WIND SPEED ON ESCARPMENTS

Authors

Abdul Haseeb Wani, Doctoral Candidate, Department of Civil Engineering, Indian Institute of Technology Jammu, Jammu - 181221, J&K, India
Rajendra Kumar Varma, Assistant Professor, Department of Civil Engineering, Indian Institute of Technology Jammu, Jammu - 181221, J&K, India
Ashok Kumar Ahuja, Retired Professor, Department of Civil Engineering, Indian Institute of Technology Roorkee, Roorkee - 247667, Uttarakhand, IndiaFollow

Abstract

Standards on wind loads of various countries give wind loading map of respective country in which basic wind speeds are mentioned. Design wind speeds for designing buildings and other structures are evaluated by the structural designers from these basic wind speed values by incorporating many factors. One of these factors taken into consideration is for the local topography effect such as escarpments and hills. Standards on wind loads including Indian Standard give certain recommendations for the same. However, the steps involved in evaluating relevant modification factor for local topography as given in Indian Standard on Wind Loads are many. An effort has, therefore, been made by the authors to prepare design curves which can conveniently be used by the structural designers in evaluating the topography factor for further calculating design wind speed on escarpments. Graphical illustrations made from detailed calculations using the recommendations given in Indian Standard on Wind Loads are presented in this paper which would give the topography factor values conveniently. The authors noticed few discrepancies in the recommendations given in Indian Standard. The same have also been highlighted and remedial measures recommended in this paper.

Keywords

Design Wind Speed; Escarpment; Indian Standard; Topography Factor; Wind Load

Publication Date

2023

Received Date

24 August 2021

Revised Date

21 June 2022

Accepted Date

14 July 2023

Recommended Citation

Wani, Abdul Haseeb; Varma, Rajendra Kumar; and Ahuja, Ashok Kumar (2023) "ON EVALUATION OF THE INDIAN STANDARD TOPOGRAPHY FACTOR FOR DESIGN WIND SPEED ON ESCARPMENTS," ASEAN Journal on Science and Technology for Development: Vol. 40: No. 1, Article 1.
DOI: https://doi.org/10.61931/2224-9028.1000
Available at: https://ajstd.ubd.edu.bn/journal/vol40/iss1/1