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1)  prestressed composite box beam
预应力组合箱梁
1.
The experimental results of prestressed composite box beams, including deformation, cracking distribution, section strain, failure mode and the mechanism under pure torsion are analyzed in detail.
本文为掌握预应力钢箱高强混凝土组合梁在纯扭和复合弯扭作用下的受力性能,首次完成了9根足尺预应力钢箱高强混凝土组合梁试验,其中包括3根预应力组合箱梁纯扭性能试验、5根预应力组合箱梁复合弯扭性能试验和1根预应力组合箱梁纯弯性能试验。
2)  prestressed composite plate girders
预应力组合板梁
1.
Application and study on prestressed composite plate girders are presented in this article and its development in the future is pointed out as well.
综述了预应力组合板梁的应用与研究现状,指出了今后的发展方向。
3)  prestressed conposite beam
预应力组合梁
1.
Application and study on the prestressed conposite beam
预应力组合梁的应用与研究现状
4)  prestressed encased steel box concrete beam
预应力内置钢箱-混凝土连续组合梁
1.
For tested a two-span prestressed encased steel box concrete beam,combined with the characteristics of the beam,the prestsress lose was calculated,and the appropriate method is used to tension the beam.
针对设计完成的两跨预应力内置钢箱-混凝土连续组合梁试验,结合试验梁特点,对预应力筋的各项预应力损失值进行了计算。
5)  pre-stressed box girder
预应力箱梁
1.
Analysis of quality problems in pre-stressed box girder construction and their prevention;
预应力箱梁施工质量问题分析及预防
6)  prestressed box girder
预应力箱梁
1.
Prefabrication and hoisting of 30m prestressed box girder;
30 m预应力箱梁的预制与吊装
2.
The analysis of the prestressed box girder construction scheme of Xiuyanhe Bridge;
秀延河大桥预应力箱梁施工方案浅析
3.
The finite-element analysis and reinforcement of 28m span prestressed box girder are introduced.
以上海明珠线中潭路车站结构设计为例 ,分析比较了高架轻轨车站在荷载取值、工况、内力组合、结构计算等方面不同于一般民用建筑的特殊性 ,探讨了温度变化、支座沉降产生的内力对结构配筋的影响 ,介绍了 2 8m跨度预应力箱梁的有限元计算及配筋 ,为以后此类结构的设计提供了参考。
补充资料:预应力
分子式:
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性质:试验中试样所受到的预加的恒定静态应力,单位为Pa。在生热性疲劳试验中,如固特里奇屈挠试验中,一般都施加一恒定预应力,使试样产生一静态变形,再叠加一周期压缩变形进行试验,通常预应力的大小会影响试样的疲劳寿命,预应力越大,则试样寿命会越明显缩短。也有的先施加一静态压缩变形,再叠加周期性剪切变形进行试验。

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