According to the Yuda underground plaza frame shear wall structure large span,heave load and other characteristics,put forward using large span prestressed secondry beam system to meet the construction functional requirements,and introduced in detail the design process,key points and related structural measures of a 32 m span prestressed concrete beam,had certain reference for similar engineering.%根据裕达地下广场框架剪力墙结构跨度大，荷载重等特点，提出采用大跨度预应力次梁结构体系来满足建筑功能要求，并对其中一榀32 m跨预应力混凝土梁的设计过程、要点和相关构造措施进行了详细分析，对类似工程有一定的借鉴意义。
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