摘要
大型商业综合体项目变更建筑使用功能较为常见,既有建筑物中涉及加固工程也变得较为普遍。考虑到常规的增大截面法和体外预应力法加固施工均有各自的局限性,介绍了一种增大截面预应力加固技术。将该加固技术应用到某工程,该工程裙房为框架结构形式,抽柱后开间由原来的8.35m变为16.7m,同时采用了该增大截面预应力加固技术,跨度加大的结构受力及变形要求均满足要求。
Due to the geological conditions are more complex karst tunnels and other projects due to tunnel collapse accident.Explore the risk bias of the shallow karst tunnel visual warning technology to horse-port exhaust tunnel project basis,theoretical analysis,formula derivation,field trials and other technical means of influencing factors affecting tunnel collapse probability calculations to determine the critical factors affecting the development of early warning level,I hope to provide a reference for similar projects.
作者
汪艺
李杰
袁宏樑
万展君
Wang Yi;Li Jie;Yuan Hong-liang;Wan Zhan-jun
出处
《建筑技术开发》
2023年第7期31-33,共3页
Building Technology Development
关键词
加固工程
植筋
回顶施工
预应力张拉
reinforcement works
bonded rehears
topping construction
prestressed tension
