特种结构预应力技术的特点及应用  

Characteristics and Application of Prestressing Technology in Special Structures

作　　者：杨巧[1] 李富民[1] 张建清[1] 姜蔚[1] 

机构地区：[1]中国矿业大学建筑工程学院,江苏徐州221008

出　　处：《徐州工程学院学报（自然科学版）》2009年第4期27-33,共7页Journal of Xuzhou Institute of Technology(Natural Sciences Edition)

基　　金：徐州市社会发展基金资助项目(XM07C082)

摘　　要：基于特种结构的特殊要求,分析了其预应力技术的主要特点,即通过环向布束以抗内压与纵裂,通过竖向布束以抗侧弯与横裂,通过内锚外压以保持岩体稳定.在此基础上,介绍了预应力技术在安全壳工程、电视塔工程、筒仓工程、高边坡加固工程、水塔工程等特种结构中的典型应用情况,并分析了特种结构预应力技术应用中存在的问题.The primary characteristics of prestressing technology in special structures are analyzed in this paper. These characteristics include the resistance of internal pressure and longitudinal crack through ring tendons, resistance of lateral flex and transverse crack through vertical tendons, and maintenance of rock stability through inside anchor and external pressure. The typical application of prestressing technology in projects of containment shell, television tower, silo, high slope, water tower and so on, is introduced. The existing problems in prestressing technology applied in special structures are analyzed, too.

关 键 词：特种结构 预应力 环向布束 竖向布束 锚固 

分 类 号：TU35[建筑科学—结构工程]