预应力砼空心板裂缝分析与控制

Dint Crack Analyze and Control for Prepared Concrete Hollow Plank

通过对榕江南河大桥预应力砼空心板裂缝调查分析,得出预应力砼空心板在施工过程中,产生裂缝的影响因素有:温度应力、原材料质量、施工工艺等。加强施工过程的技术管理,采取有效的控制措施,特别是砼的养护对消除砼的表面裂缝尤为关键。

In the prepared concrete hollow plank construction process, influence factor of creation crack has：temperature dint, original material quantity, construction craft etc.. Technocracy that enhance the construction process, control measure adopting effectively, especially concrete protects to the surface crack of the concrete of cancellation particularly for key.