青岛火车站预应力混凝土框架结构裂缝预防与控制

Prevention and Control of Cracks in Prestressed Concrete Frame Structures of Qingdao Railway Station

混凝土结构不可避免地会出现裂缝,当结构出现裂缝时,工程结构的耐久性和力学性能都会受影响.针对混凝土结构裂缝产生的各种原因,结合青岛火车站大型预应力框架结构的实践,提出从材料、施工和维护等方面控制裂缝的技术措施,应用于工程实践,获得了预期效果.

Cracks are inevitable in concrete structures.When cracks occur,the durability and performance of engineering structures will be affected.This paper studies the causes of cracks in concrete structures in accordance with the large-scale prestressed frame structures of Qingdao Railway Station.Then the technical measures are taken to control cracking from the aspects of materials,construction and maintenance,which are put into practice and get the effect as expected.