摘要
主要介绍大型无粘结预应力型钢混凝土反力墙施工技术,运用BIM技术对反力墙结构中复杂的钢骨架、预埋件、预应力筋束、普通钢筋进行优化布置、深化设计、施工模拟及可视化交底。通过设置预埋件支撑钢架及可调式双螺母螺栓,安装固定预埋件,使预埋件位置易于调节,精度易于控制。研究墙内水平、竖直双向双层无粘结预应力筋束张拉方案,采用合理的模板及自密实混凝土浇筑技术,确保反力墙表面平整度、垂直度满足高精度要求。
In this paper,through the use of BIM technology,the steel skeleton,embedded parts,prestressed tendons and steel bars in the reaction-force wall structure are optimally arranged,deepening design,construction simulation and visualization.By setting the embedded part supporting steel frame and the adjustable double nut bolt,and installing the fixed embedded part,the position of the embedded part can be easily adjusted,and the precision is easy to control.In this paper,the horizontal vertical bidirectional double-layer unbonded prestressed tendon bundle tensioning scheme in the reaction-force wall is studied.By reasonably setting the template and self-compacting concrete pouring technology,it is ensured that the surface flatness and verticality of the reaction-force wall meet the high precision requirements.
作者
李洪
刘天苹
罗传玲
蒋永金
蒋晓蓉
王扬
LI Hong;LIU Tianping;LUO Chuanling;JIANG Yongjin;JIANG Xiaorong;WANG Yang(Chongqing Construction Engineering Group Co.,Ltd.,Chongqing 401122,China;Institute of Mechanics,Chinese Academy of Sciences,Beijing 100190,China)
出处
《施工技术》
CAS
2019年第15期40-44,共5页
Construction Technology
基金
重庆市建设科技计划项目(2018-0561)
关键词
反力墙
型钢混凝土
预应力
建筑信息模型
施工技术
reaction-force walls
steel reinforced concrete
prestressing
building information modeling(BIM)
construction
