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工程力学  2014 

纤维编织网增强混凝土侧面加固偏压短柱试验研究

DOI: 10.6052/j.issn.1000-4750.2012.11.0826, PP. 228-236

Keywords: 纤维编织网增强混凝土(TRC),偏心距,前期受力历史,纤维编织网层数,极限承载力

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Abstract:

纤维编织网增强混凝土具有耐腐蚀、耐高温、限裂效果好、施工便捷、几乎不增加结构尺寸等突出性能而逐渐成为近期研究的热点。开展TRC侧面加固偏压短柱试验,探讨偏心距、前期受力历史和纤维编织网用量对加固效果的影响。试验结果表明:TRC侧面加固方法适合于大偏心受压结构,偏心距越大,增强效果越明显;结构前期受力历史对加固效果影响非常明显,随着前期历史载荷的增大,加固效果明显减弱;提高纤维编织网用量在一定程度上可以增强加固效果,但增强幅度随用量的增加呈现出减弱趋势。在室内试验与相关研究成果的基础上,提出了纤维编织增强混凝土侧面加固偏压短柱极限承载力计算方法,计算值与试验值吻合较好。

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