In light of characteristics of urban commercial complex building with large scale,complicated functions and internal staff-intensity,it explores how to rationally design water supply and drainage system,and respectively expounds the design points from aspects of fire protection water supply system,living water supply system,drainage system and rainwater system,with a view to guide practice.%针对城市商业综合体规模宏大,功能复杂,内部人员密集的特点,探讨了如何合理进行给排水系统的设计,分别阐述了消防给水系统和生活给水系统、排水系统、雨水系统四方面设计要点,以期指导实践。
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