| 弦支结构体系研究进展 |
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| 引用本文： | 陈志华. 弦支结构体系研究进展[J]. 建筑结构, 2011, 0(12) |
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| 作者姓名： | 陈志华 |
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| 作者单位： | 天津大学建筑工程学院;天津市土木工程结构与新材料重点实验室; |
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| 摘 要： | 在阐述预应力钢结构发展历程的基础上,根据预应力钢结构中构件类型组成,将预应力钢结构分为刚性、刚柔混合和柔性三种预应力钢结构类型,其中刚柔混合预应力钢结构中的弦支结构是一种典型的预应力钢结构,是目前应用最广泛的结构体系之一。对于预应力钢结构的核心构件——拉索的温度线膨胀系数,建议今后工程设计时采用以理论分析和试验研究为基础的数据,即钢丝绳、钢绞线、半平行钢丝束三种索材的线膨胀系数值分别为1.92×10-5,1.38×10-5,1.87×10-5/℃。在分析弦支结构体系概念的基础上,将其分为平面弦支结构、可分解的空间弦支结构和不可分解的空间弦支结构三类,并对弦支结构体系中拉索的数值模拟理论进行了总结分析。随后分别针对三种弦支结构类型,对其发展历程、结构构成、结构特点以及工程应用进行了分析总结。
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| 关 键 词： | 预应力钢结构 弦支结构 分类体系 结构特点 工程应用 |
The state of art of cable-supported structures |
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| Chen Zhihua. The state of art of cable-supported structures[J]. Building Structure, 2011, 0(12) |
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| Authors: | Chen Zhihua |
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| Affiliation: | Chen Zhihua1,2(1 Department of Civil Engineering,Tianjin University,Tianjin 300072,China,2 Tianjin Key Laboratory of Civil Engineering Structure & New Materials,China) |
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| Abstract: | Based on the review of the development of pre-stressed steel structure,the pre-stressed steel structure is divided in to three types,which are rigid pre-stressed steel structure,rigid-flexible pre-stressed steel structure and flexible pre-stressed steel structure.The cable-supported structure in rigid-flexible pre-stressed steel structure is typical and one of the most comprehensive structure.Coefficients of linear thermal expansion of cables,the key member in pre-stressed steel structures,were determined b... |
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| Keywords: | pre-stressed steel structure cable-supported structure classification system structural characteristic engineering application |
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