交通节能与环保2024，Vol.20Issue(3)：22-27,6.DOI:10.3969/j.issn.1673-6478.2024.03.005
装配式便道3D打印混凝土面板路用性能的现场监测研究
On-site Monitoring and Research on the Road Performance of 3D Printed Concrete Panels for Prefabricated Walkway
李苗 1王凯薪 2张秀钰 3赵瑞欣 3李哲3
作者信息
- 1. 中交路桥建设有限公司,北京 100000
- 2. 中交路桥建设有限公司总承包分公司,北京 100000
- 3. 长安大学,陕西 西安 710064
- 折叠
摘要
Abstract
In order to improve the recycling rate and bearing capacity of prefabricated concrete pavement slabs for temporary sidewalks,this paper combines ultra-high performance concrete(UHPC)with 3D printing technology,and analyzes the road performance of 3D printed panels and cast-in-situ panels as prefabricated concrete pavement slabs for temporary sidewalks through indoor mechanical tests and on-site temperature monitoring tests.The test results show that although 3D printed UHPC concrete can improve the durability and environmental protection of the panel,the temperature deformation of the panel is greater than that of the C40 concrete cast-in-place panel,and the temperature resistance is affected by the metal fiber addition.Through the monitoring of the strain in the middle,edge and corner of the standard board,it is analyzed that the stress level of the 3D printed UHPC panel is generally greater than that of the cast-in-place C40 road panel.And comparing and analyzing the average stress levels of 3D printed special-shaped plate with the standard version,it is found that the stress value of the smaller-sized special-shaped plate is generally lower than that of the standard plate,and the stress of the edge of the special-shaped plate is smaller than that of the design tensile strength,showing higher use potential.关键词
道路工程/3D打印UHPC面板/现场监测/路用性能Key words
road engineering/3D printing UHPC panel/on-site monitoring/pavement performance分类
交通工程引用本文复制引用
李苗,王凯薪,张秀钰,赵瑞欣,李哲..装配式便道3D打印混凝土面板路用性能的现场监测研究[J].交通节能与环保,2024,20(3):22-27,6.
