- 摘 要
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（上海大學(xué)土木工程系 200072
【提要】 對外包鋼加固軸心受壓磚柱的受力特點和橫向應(yīng)變進行了分析，提出了外包鋼約束作用下磚砌體側(cè)約束應(yīng)力、抗壓強度的計算方法。在考慮截面有效約束區(qū)和非有效約束區(qū)的基礎(chǔ)上，提出了外包鋼加固軸心受壓磚柱的極限承載力計算方法。計算結(jié)果與已有試驗結(jié)果吻合較好，研究結(jié)果可供類似工程參考。
【關(guān)鍵詞】 外包鋼 加固 軸心受壓磚柱 軸壓極限承載力
Analysis of Flexural Behavior of Masonry Column Strengthened by Wrapped Steel Outside Under Axial Compression/Ouyang Yu, Liu Nengke(Department of Civil Engineering, Shanghai University, Shanghai 200072, China)
Abstract:The stress capacity and lateral strain of masonry column strengthened by wrapped steel outside under axial compression are analysed. The method of calculating the restraint stress and bearing capacity is suggested. By considering the effectively confined area and the ineffectively confined area in the masonry column section, an analytical model to predict the ultimate compressive strength of masonry column strengthened by wrapped steel outside under axial compression is developed. The results are in good agreement with experimental data,and can serve as reference to engineering application.
Keywords:wrapping steel outside; strengthening; masonry column; ultimate axial compressive strength
