预应力混凝土空心板关键技术研究

Study on the Key Technologies of Prestressed Concrete Hollow Slab

中小跨径桥梁在我国的桥梁占比中近90%,预应力混凝土空心板普遍应用于小桥涵中。当前,随着行车荷载的提高,桥梁中的预应力混凝土空心板暴露出了很多问题。论文从设计、施工、运营维护等多角度探讨预应力混凝土空心板的控制要素,以确保其在服役期内安全、经济、耐久。

About 90% of the bridges are medium and small span bridges in China.The prestressed concrete hollow slabs are commonly used in small bridges and culverts.At present,with the increase of driving loads,many problems have emerged in the prestressed concrete hollow slabs of the bridges.This article discusses the control factors from the design,construction,operation and maintenance,etc.of the prestressed concrete hollow slab control elements to ensure that it is safe,economical and durable during the service period.