大跨度预应力现浇空心楼盖的应用与施工  

Application and construction of large span prestressed cast-in-place hollow floor

作　　者：吉庆海 刘宗琼 谭杰 边军辉 JI Qinghai;LIU Zongqiong;TAN Jie;BIAN Junhui(Guizhou Construction Engineering Group Co.,Ltd.,Guiyang 550005,Guizhou,China)

机构地区：[1]贵州建工集团有限公司,贵州贵阳550005

出　　处：《工程建设》2022年第10期51-56,共6页Engineering Construction

摘　　要：在工程实践中,预应力技术及空心楼盖体系在大跨度空间结构中的应用常常彼此分离,两者的组合应用实例较少,因此很有必要对这两者的组合应用及施工关键技术进行总结。本文通过总结预应力技术及空心楼盖体系的应用现状和技术特点,探讨这两者组合应用的实用性及优越性,再结合工程实例及实践经验对施工的关键点及注意事项进行分析和总结。实践表明:将预应力技术与现浇空心楼盖技术进行重组和优化,可以形成一种适用于更大跨度空间结构的预应力现浇空心楼盖,这种楼盖的应用可以取得良好的经济效益及使用效果,本文内容可为类似工程提供技术借鉴和参考。In engineering practice,the application of prestressed technology and hollow floor system in large-span spatial structures is often separated from each other,and there are few examples of combined application of the two.Therefore,it is necessary to summarize the combined application and construction key of the two.Through summarizing the application status and technical characteristics of prestressed technology and hollow floor system,the practicability and superiority of the combined application of the two are discussed,and the key points and precautions in construction are analyzed and summarized combining with engineering examples and practical experiences.Practices show that by reorganizing and optimizing the prestressed technology and the cast-in-situ hollow floor technology,a prestressed cast-in-situ hollow floor suitable for larger span spatial structures can be formed,and the application of this floor can achieve good economic benefits and use effects.This paper can provide technical references for similar projects.

关 键 词：现浇空心楼盖 大跨度 预应力 GBF空心石膏模盒 

分 类 号：TU755[建筑科学—建筑技术科学]