简要介绍了某大底盘多塔商住楼的结构整体和思、分析与对策。文中通过基础方案选定、上部结构抗震分析及裂缝控制计算，论证了该超长超宽工程无永久经设计的可行性，并为推广UEA补偿收缩砼无缝设计施工技术应用于该工程并指导施工提供了理论依据。 The overall structure, thinking, analysis and countermeasures of a large-scale chassis multi-tower commercial and residential building are briefly introduced. Through the selection of the basic scheme, the analysis of the seismic resistance of the superstructure and the calculation of the crack control, the feasibility of the permanent super wide project without permanent design was demonstrated, and the application of the seamless design and construction technology for UEA compensation and contraction was applied to the project and its guidance. The construction provides a theoretical basis.