狭小截面方形钢柱混凝土顶升施工技术
|
摘要
钢结构建筑在设计过程中,往往通过钢柱内灌注混凝土增强钢柱抗压、抗弯强度。由于钢柱内部结构复杂,并设有加劲板、封口板、临时斜撑等,导致混凝土施工时受到的阻力较大,尤其狭小截面方形钢柱混凝土施工更加困难。以兰州兰泰苹果园棚户区改造工程为例,依据设计、施工阶段,提出改造加劲板、优化混凝土配合比、确定合理的顶升位置、控制混凝土顶升压力等方案,确保钢柱混凝土的施工质量,大大提高施工效率。
In the design process of steel structure,it is often used to reinforce the steel column's compressive capacity and bending strength by pouring concrete into the steel columns. Due to the complicated internal structure of the steel columns,there are stiffening plates,sealing plates,temporary bracing and so on,resulting in greater resistance to concrete construction,and the construction of narrowsection square steel columns concrete is more difficult. This paper takes the Lanzhou Lantai Pingguoyuan shantytown renovation project as an example,proposes a plan to transform the stiffener,optimizes the concrete mix ratio, determines the reasonable jacking position, and controls the concrete jacking pressure. In this way,the construction quality of the steel columns concrete can be ensured and the construction efficiency can be greatly improved.
In the design process of steel structure,it is often used to reinforce the steel column's compressive capacity and bending strength by pouring concrete into the steel columns. Due to the complicated internal structure of the steel columns,there are stiffening plates,sealing plates,temporary bracing and so on,resulting in greater resistance to concrete construction,and the construction of narrowsection square steel columns concrete is more difficult. This paper takes the Lanzhou Lantai Pingguoyuan shantytown renovation project as an example,proposes a plan to transform the stiffener,optimizes the concrete mix ratio, determines the reasonable jacking position, and controls the concrete jacking pressure. In this way,the construction quality of the steel columns concrete can be ensured and the construction efficiency can be greatly improved.
引文
[1]高辉，吕鑫凯，许晓飞，等．可周转式钢管柱混凝土泵送顶升接口施工方法[J]．施工技术，2017,46(23):84-85,102.
[2]唐杨．方形钢-混凝土组合墩顶升灌注混凝土时开裂原因分析[J]．国防交通工程与技术，2018,16(2):5-9.
[3]郑培壮．小管径钢管自密实混凝土施工技术[J]．施工技术，2017,46(6):81-82,88.
[4]谢孝成，郭杜魁，郝文彬，等．海口中心大型多隔板钢管混凝土柱施工技术研究[J]．施工技术，2018,47(3):1-3,35.
[5]王海峰．探析超高层建筑型钢混凝土柱的施工技术[J]．民营科技，2018(5):123.
[6]臧军，沈晓冬，赵峰．C60自密实钢管柱顶升混凝土的配制与施工[J]．混凝土与水泥制品，2017(4):81-84.
[2]唐杨．方形钢-混凝土组合墩顶升灌注混凝土时开裂原因分析[J]．国防交通工程与技术，2018,16(2):5-9.
[3]郑培壮．小管径钢管自密实混凝土施工技术[J]．施工技术，2017,46(6):81-82,88.
[4]谢孝成，郭杜魁，郝文彬，等．海口中心大型多隔板钢管混凝土柱施工技术研究[J]．施工技术，2018,47(3):1-3,35.
[5]王海峰．探析超高层建筑型钢混凝土柱的施工技术[J]．民营科技，2018(5):123.
[6]臧军，沈晓冬，赵峰．C60自密实钢管柱顶升混凝土的配制与施工[J]．混凝土与水泥制品，2017(4):81-84.
© 2004-2018 中国地质图书馆版权所有 京ICP备05064691号 京公网安备11010802017129号 地址：北京市海淀区学院路29号 邮编：100083 电话：办公室：(+86 10)66554848；文献借阅、咨询服务、科技查新：66554700 |