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| 大跨度预应力刚架-索结构的设计与施工 | |
| 引用本文： | 贺海挺,刘磊,田秀刚,何国军.大跨度预应力刚架-索结构的设计与施工[J].钢结构,2012,27(8):26-30. |
| 作者姓名： | 贺海挺 刘磊 田秀刚 何国军 |
| 作者单位： | 1. 宁波住宅建设集团股份有限公司,浙江宁波,315010 2. 宁波市机电工业研究设计院有限公司,浙江宁波,315012 3. 宁波建工股份有限公司,浙江宁波,315040 |
| 摘 要： | 浙江友宁钢制品厂36m大跨度刚架采用门式刚架加预应力索组成的刚架-索结构体系。首先在车间对大跨度门式刚架在不同荷载工况下的变形情况进行试验,并根据施工现场安装试验情况最终确定预应力刚架的张拉施工方法。结果表明:预应力刚架-索结构体系结构可靠,施工安装方便,结构轻盈美观,相比普通刚架,更加充分地利用了钢材的材料力学性能,具有非常明显的经济性。在施工过程中,应注意刚架性能差异导致的预应力张拉值的轻微差异。 |
| 关 键 词： | 预应力 刚架-索结构 大跨度 门式刚架 钢绞线 张拉 |
DESIGN AND CONSTRUCTION OF LONG-SPAN PRESTRESSED FRAME-CABLE STRUCTURE |
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| He Haiting , Liu Lei , Tian Xiugang , He Guojun.DESIGN AND CONSTRUCTION OF LONG-SPAN PRESTRESSED FRAME-CABLE STRUCTURE[J].Steel Construction,2012,27(8):26-30. | |
| Authors: | He Haiting Liu Lei Tian Xiugang He Guojun |
| Affiliation: | HeHaiting Liu Lei Tian Xiugang HeGuojun ( 1. Ningbo Housing Construction Group Co. Ltd, Ningbo 315010, China 2. Ningbo Mechanical Electric Design Research Institute,Ningbo 315012,China; 3. Ningbo Construction Engineering Co. Ltd, Nilagbo 315040, China) |
| Abstract: | The structure of Zhejiang Youning steel products plant is composed of portal frame and steel strand with 36 m span. Firstly structure test was carried out on a long-span portal frame to research its deformation under different load conditions. The prestressed stretching construction was determined, while experiments results on workshop and construction sites were considered comprehensively. The results show that prestressed frame-cable structure has the benefits such as high reliability, convenience for construction and installation, flexible structure. The frame-cable structure fully utilizes the portal frame~s mechanical property of material and has material saving far more than usual portal frame. Attention should be paid to slight difference of cable stress varying with specific individual prestressed frame cable structure. |
| Keywords: | prestress frame-cable structure long-span portal frame steel strand tensioning |
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