Exploration of the Optimal Wall-to-Floor Ratio:Balancing Cost Control and Structural Safety in Building Projects

This study provides an in-depth analysis of the optimized design of shear wall layout in high-rise buildings, aiming to improve seismic performance and reduce construction costs. Through experiments on a building model from a residential community in Jiangsu Province, the results show that when the seismic intensity reaches level 7 (0.1g), the traditional model has a wall layout ratio of 4.24%, while the optimal model's wall ratio does not exceed that of the traditional model under the same conditions, demonstrating its flexibility and adaptability. As the seismic intensity increases to level 7 (0.15g), the optimal model’s wall ratio approaches that of the traditional model, indicating its effectiveness in dynamic adjustments. Cost analysis reveals that models two, three, and four save 121,567.5 yuan, 117,732.5 yuan, and 94,995.5 yuan, respectively, significantly reducing material costs compared to the traditional design. Research results show that optimizing the layout of shear walls can not only improve the relevant performance of buildings but also maximize the economic benefits of construction projects without compromising structural performance. This provides important theoretical support and practical reference for seismic design of high-rise buildings.