The effect of performance-based wind design on seismic design of a tall building in high seismic and high wind zone | |
| Author | Subedi, Akansha |
| Call Number | AIT Thesis no.ST-22-07 |
| Subject(s) | Wind resistant design Earthquake resistant design Tall buildings--Design and construction |
| Note | A thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering in Structural Engineering, School of Engineering and Technology |
| Publisher | Asian Institute of Technology |
| Abstract | In the region subjected to high seismic activities and wind hazards, taller and slender building are more vulnerable than low-rise structures. In combined assessment of wind and earthquake loads, the wind demands are remained to be elastic whereas, seismic demands are reduced by considering ductility of structural members. For tall buildings, the elastic wind demand tends to govern the stiffness and strength of seismically ductile elements, leading to increase in capacity of ductile components and ultimately, the seismic performance of the building is compromised. The approach of permitting inelasticity for wind analysis is a topic of interest for many researchers. ASCE published a pre-standard for Performance Based Wind Design in 2019, which allows non-linear analysis for extreme wind cases. This study was conducted to evaluate the effect of incorporating non-linear wind design on the seismic design of a tall building. A 93 story RC building in high wind and high seismic zone was selected for the study. Firstly, the study building was designed by elastic code based method for wind load and Performance Based Seismic Design (PBSD) for seismic load. Subsequently, Performance Based Wind Design (PBWD) was carried out to design the same structure followed by PBSD. The results from two design approaches were compared and analyzed. The results of this comparative study signifies that the wind demand can be reduced by application of PBWD leading to more economical and optimal design. Furthermore, seismic demand was also reduced and overall performance was improved by incorporating non linearity in wind analysis. |
| Year | 2022 |
| Type | Thesis |
| School | School of Engineering and Technology (SET) |
| Department | Department of Civil and Infrastucture Engineering (DCIE) |
| Academic Program/FoS | Structural Engineering (STE) /Former Name = Structural Engineering and Construction (ST) |
| Chairperson(s) | Pennung Warnitchai;Anwar, Naveed (Co-chairperson) |
| Examination Committee(s) | Thanakorn Pheeraphan;Krishna, Chaitanya |
| Scholarship Donor(s) | Asian Institute of Technology Scholarships |
| Degree | Thesis (M. Eng.) - Asian Institute of Technology, 2022 |