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楊  燁¹，趙來順²，趙  曼²
（1 中國(guó)核電工程有限公司，北京100840; 2 西安科技大學(xué)建工學(xué)院，西安710054)

[摘要] 將植筋技術(shù)用于新舊混凝土結(jié)合面，形成了改進(jìn)的加大截面加固法。將改進(jìn)的截面加大法用于加固軸心受壓構(gòu)件并對(duì)其進(jìn)行試驗(yàn)研究，分析比較了新舊混凝土界面的破壞特征、共同工作性能及加固構(gòu)件的承載力變化情況，提出了有關(guān)設(shè)計(jì)與施工的建議，供研究、設(shè)計(jì)和施工參考。
[關(guān)鍵詞] 新舊混凝土界面；加大截面加固法；化學(xué)植筋

Experimentalinvestigation of axial compression column be strengthened with the method of enlarging sectional areas
Yang Ye¹,  Zhao Laishun²,  Zhao Man²
(1 China Nuclear Power Engineering Co., Ltd., Beijing 100840, China;2 School of Civil Engineering, Xi'an University of Science and Technology, Xi'an 710054, China)

Abstract: The work mechanism of the method of enlarging sectional areas and the interface mechanical performance have be more systematical analyzed and studied with the structural testing method.
Keywords: interface between old and new concrete; the method ofenlarging sectional areas; bonded rebar