无粘结预应力技术在大直径圆柱壳中的应用和试验分析  

THE APPLICATION OF UNBONDED PRESTRESSED TECHNIQUE TO CYLINDRICAL SHELL WITH BIG DIAMETER AND THE ANALYSIS OF TESTS

作　　者：侯和涛[1] 李国强[1] 王友权[2] 齐立新[3] 汤红卫[4] 

机构地区：[1]同济大学,上海200092 [2]山东省建筑设计研究院,济南250021 [3]济南市市政工程设计研究院,济南250002 [4]山东大学,济南250014

出　　处：《工业建筑》2004年第2期25-27,78,共4页Industrial Construction

摘　　要：通过工程实例 ,介绍无粘结预应力混凝土技术在大直径圆柱壳中的应用。利用轴对称圆柱壳有矩理论进行结构分析、设计 ,并在施工现场进行了一系列应力、应变和变形测试。结果证明 ,理论分析结果与现场测试结果吻合极好。工程实例表明 ,无粘结预应力混凝土技术应用于大直径圆柱壳可有效地控制裂缝产生 ,获得可观的经济效益和社会效益 ,有广泛的应用前景。最后 ,对设计理论提出了建议。This paper presents the application of unbonded prestressed concrete technique to cylindrical shell with big diameter through an engineering case. Structure can be analyzed and designed by using the axisymmetrical cylindrical shell theory with moment. A series of stress strain and displacement tests are carried out in situ construction.The test results have good agreement with the theoretical numerical results. Th case study shows the merit of unbonded prestressed concrete technique used in cylindrical shell with big diameter in controlling the occurrence of crack, and it also shows the significant economic and social benefits.This technique has a bright prospects in engineering construction. In addition, some suggestions on designing theory are put forward.

关 键 词：无粘结 大直径圆柱壳 预应力混凝土 裂缝 有矩理论 

分 类 号：TU757[建筑科学—建筑技术科学]