摘要
依托国家科技支撑计划项目,自行设计建立了高温烧蚀试验平台,并针对沉管隧道特点,通过采用C50混凝土制备的局部1∶1结构试验构件,以及不同的耐火保护技术(防火板与防火涂料)和不同的耐火保护方案进行了构件的高温烧蚀试验。文章通过试验分析,得出了在满足HC或RABT升温曲线条件下,适于受火2 h的混凝土结构的耐火保护技术方案,同时还针对实际工程提出了实用性的建议。
Based on the National Science and Technology Support Plan, a self-designed high temperature ablation test platform was established, and high temperature ablation tests using different fire-resistant technologies （fireproof board and fireproof coating） were conducted considering the characteristics of immersed tunnels by using a 1 ： 1 local structural element made from C50 concrete. An appropriate fire-resistant scheme for the concrete structure that can withstand fire for 2 hours and meets the requirements of the HC or RABT heating curve is put forward after experimental analysis. In addition, some practical suggestions are presented.
出处
《现代隧道技术》
EI
北大核心
2014年第2期43-49,共7页
Modern Tunnelling Technology
基金
国家科技支撑计划项目(2011BAG07B05)
关键词
沉管隧道
结构构件
高温烧蚀试验
耐火保护方案
Immersed tunnel
Structural elements
High temperature ablation test
Fire-resistance scheme
