| 受压弦杆填充混凝土的带悬挑预应力矩形钢管桁架 |
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| 引用本文： | 蔡健,陈国栋,左志亮,吴轶.受压弦杆填充混凝土的带悬挑预应力矩形钢管桁架[J].吉林大学学报(工学版),2009,39(2):393-0397. |
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| 作者姓名： | 蔡健 陈国栋 左志亮 吴轶 |
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| 作者单位： | 1. 华南理工大学土木与交通学院,广州510640;华南理工大学亚热带建筑科学国家重点实验室,广州,510640
2. 广州大学土木工程学院,广州,510006 |
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| 基金项目： | 国家重大基础研究前期研究专项项目(2004CA03300);;广州市教育局科技计划项目(62063) |
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| 摘 要： | 通过对3个大尺寸的大跨带悬挑预应力矩形钢管混凝土桁架、预应力矩形钢管桁架和矩形钢管混凝土桁架模型对比试验,考察了这些桁架结构的破坏形态、变形特点和承载性能。试验结果表明,施加预应力并填充混凝土的桁架试件的变形减小,极限承载力也明显提高,填充混凝土可以有效防止受压钢管壁的局部屈曲,试件破坏受材料的强度控制,为工程设计和施工提供了参考依据。
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| 关 键 词： | 土木建筑结构 预应力 矩形钢管混凝土 矩形钢管 桁架 大跨度 受力性能 |
| 收稿时间： | 2007-08-25 |
Prestressed rectangular steel tubular truss with cantilever and compressed chords filled with concrete |
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| CAI Jian,CHEN Guo-dong,ZUO Zhi-liang,WU Yi.Prestressed rectangular steel tubular truss with cantilever and compressed chords filled with concrete[J].Journal of Jilin University:Eng and Technol Ed,2009,39(2):393-0397. |
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| Authors: | CAI Jian CHEN Guo-dong ZUO Zhi-liang WU Yi |
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| Affiliation: | 1.School of Civil Engineering and Transportation, South China University of Technology, Guangzhou 510640, China; 2.State Key Laboratory of Subtropical Architecture Science, Guangzhou 510640, China; 3. College of Civil Engineering of Guangzhou University, Guangzhou 510006, China |
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| Abstract: | Through the comparing tests of three large speciments of the long-span prestressed concrete-filled rectangular steel tubular truss(RSTT) with cantilever,the prestressed RSTT and the concrete-filled RSTT,their mechanical behaviors,such as the destroy mode,the deformation feature,and the loading capacity were investigated.The test results show that the ultimate strength of the prestressed concrete-filled RSTT is larger than the concrete-filled RSTT and the prestressed RSTT,and the deflection of the former is ... |
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| Keywords: | civil architectural structure prestress concrete filled rectangular steel tube rectangular steel tube truss long-span mechanical behavior |
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