An Integrated Platform for Wind-Resistant Design of a Super-High-Rise Triple-Tower Building

Abstract

The proliferation of super-tall buildings with complex interconnected forms presents significant challenges for wind-resistant design, often exceeding the prescriptive scope of modern building codes. This paper presents a comprehensive evaluation of the wind performance of a super-high-rise triple-tower building interconnected at its upper levels. Dynamic pressure measurements from wind tunnel tests were integrated with a detailed finite element model, and subsequently processed through a custom-developed software platform which automates the entire analysis workflow from raw data handling to the determination of structural responses via frequency-domain analysis. The results reveal complex aerodynamic interference, with wind pressure coefficients on the interconnected floors exhibiting substantially greater volatility compared to those on isolated tower sections. The analysis of wind-induced responses indicates that the equivalent static wind loads display a distinctly non-linear distribution with height, particularly around the interconnected zone, deviating significantly from code-specified profiles. Despite these aerodynamic complexities, the peak top-floor accelerations and inter-story drift ratios were found to remain within the established serviceability limits for all wind directions. This study provides crucial insights into the wind-structure interaction of complex multi-tower systems and demonstrates the efficacy of an integrated platform for enhancing the accuracy and efficiency of their wind-resistant design.