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李云云
（內(nèi)蒙古科技大學(xué)建筑與土木工程學(xué)院，包頭014010）[摘要] 通過鋼骨高強(qiáng)混凝土柱的承載力試驗和在低周反復(fù)水平荷載作用下的試驗研究，分析了長細(xì)比對柱受力性能的影響以及軸壓比、配箍率及鋼骨形式對柱抗震性能的影響。由試驗得出鋼骨高強(qiáng)混凝土長柱的承載能力隨試件長細(xì)比的增大而降低，隨混凝土強(qiáng)度等級的提高而提高，破壞的突然性隨長細(xì)比的增大而俞益明顯；另外，研究發(fā)現(xiàn)鋼骨高強(qiáng)混凝土柱的抗震性能除對軸壓力系數(shù)敏感外，鋼骨形式也是一個重要的影響因素，對于鋼骨形式不同的鋼骨高強(qiáng)混凝土柱，可適當(dāng)調(diào)整其軸壓力系數(shù)限值，而配箍率的影響則并不顯著。
[關(guān)鍵詞] 鋼骨高強(qiáng)混凝土；柱；軸壓力系數(shù)；長細(xì)比
中圖分類號：TU398.7 文獻(xiàn)標(biāo)識碼：A 文章編號：1002-848X(2011) S2-0156-03Study on behaviors of steel reinforced high-strength concrete columns
Li Yunyun
( College of Arclutecture & Civil Engineering, Inner Mongolia Uruversity of Science&Technology, Baotou 014010, China)Abstract: By the test on bearing capacity and level load of low cycle reverse of steel reinforced high-strength concrete columns, the influences on behaviors of the columns under different slendemess ratio and on anti-seismic behavior of the columns under different axial compression ratio, stirrup ratio and steel form, were analyzed. The test results show that bearing capacity of the long columns reduces along with the slendemess ratio increasing and augments along with concrete strength increasing, and the probability of suddenly destruct mcreases along with the column slendemess ratio augmenting. In addition, anti-seismic of the behavior columns is effected not only by axial compression ratio, but also by steel form. Axial compression ratio of the steel reinforced high-strength concrete columns with different steel form may be adjusted, however the influence of stirrup ratio is very little on anti-seismic behavior of columns.
Keywords: steel reinforced high-strength concrete; column; axial compression ratio; slendemess ratio
