大跨度后张缓黏结预应力钢筋混凝土梁施工技术研究  

Research on Construction Technology of Reinforced Concrete Beam with Large-Span Post-Tensioned Retard-Bonded Prestressed Steel Strand

作　　者：宋涛 秦鹏 Song Tao;Qin Peng(Construction and Erection Engineering Co.Ltd.of the Third Bureau Group Company of China Railway,Taiyuan Shanxi 030006,China)

机构地区：[1]中铁三局集团建筑安装工程有限公司,山西太原030006

出　　处：《城市建筑》2020年第32期124-126,168,共4页Urbanism and Architecture

摘　　要：本文依托山西大学东山校区理科教学与实验综合楼建设项目,对预应力钢绞线和胶黏剂的材料参数和特性进行了阐述,形成了缓黏结预应力筋铺放、混凝土浇筑和养护、预应力筋张拉、锚具的封闭保护等成套的大跨度后张缓黏结预应力钢筋混凝土梁施工技术,推动缓黏预应力筋的推广应用,为类似大跨度钢筋混凝土梁结构的设计和施工提供借鉴和参考。Based on the construction project of science teaching and experimental complex building in Dongshan campus of Shanxi University,the material parameters and characteristics of prestressed steel strand and adhesive are elaborated.A complete set of construction technology of long-span post-tensioned prestressed concrete beam is formed,such as laying of retard-bonded prestressed steel strand,concrete pouring and maintenance,tensioning of prestressed reinforcement,sealing protection of anchorage,and so on.The results may promote the popularization and application of retard-bonded prestressed steel strand,and provide a reference for the design and construction of similar large-span reinforced concrete beam structure.

关 键 词：缓黏结预应力钢筋 大跨度 钢筋混凝土梁 胶黏剂 

分 类 号：U445[建筑科学—桥梁与隧道工程]