大跨径悬灌连续梁0号块混凝土施工质量控制关键技术  

Key Quality Control Technology of Concrete Constuction of the Segment No.0 of Long Span Cantilever Casting Continuous Girder

作　　者：王建红 WANG Jian-hong(Shanghai Railway Terminal Engineering Construction Headquarters,China Railway Shanghai Bureau Group Co.,Ltd.,Shanghai 200000,China)

机构地区：[1]中国铁路上海局集团有限公司上海铁路枢纽工程建设指挥部,上海200000

出　　处：《价值工程》2022年第6期98-100,共3页Value Engineering

摘　　要：结合工程实践,分析了大跨径悬灌连续梁0号块混凝土施工质量控制难点,重点介绍了0号块混凝土施工质量控制关键技术,从混凝土浇筑顺序、下料孔布设、振捣和大体积混凝土温控等方面进行详细阐述,有效避免了0号块混凝土施工质量缺陷,可供类似工程借鉴。Connecting with the construction practice,this paper analyzes the difficulties of concrete constuction of the segment No.0 of long span cantilever casting continuous girder,it focuses on the key quality control technology of concrete construction of the segment No.0,and expounds in detail from pouring sequence of concrete,layout of blanking hole,vibration,temperature control of mass concrete,which effectively avoids quality defects in the concrete of the segment No.0 and can be used as a reference for similar projects.

关 键 词：大跨径连续梁 0号块 混凝土浇筑 振捣 

分 类 号：TU378.2[建筑科学—结构工程]