ABSTRACT
With the development of modern construction, the application of large chassis symmetrical multi-tower structures is becoming more and more widespread. Whether from the perspective of safety or practicality, attention should be paid to, and the structural design of such buildings should be strengthened to extend the structure's service life and effectively improve the safety and stability of the building, thus ensuring the safety of people's lives and property. This paper takes a 10-story reinforced concrete frame structure as an example. The YJK program is used to carry out the reaction spectrum method and the large-earthquake elastoplastic time-history analysis to compare the seismic performance of a symmetrical twin-tower structure. A single-tower structure is taken halfway along the axis of symmetry to give design recommendations on whether a symmetrical large-chassis twin-tower structure can be simplified to a single-tower structure. The results show that the simplified single-tower structure under frequent and rarely occurred earthquakes has a good agreement with the twin-tower structure and can provide a simplified analysis of the symmetrical twin-tower.
