- 摘 要
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（內(nèi)蒙古科技大學建筑與土木工程學院， 包頭 014010）
［摘要］為了研究鋼骨-鋼管混凝土柱的抗震性能和塑性鉸長度，以軸壓比和含骨率為變化參數(shù)，對4個鋼骨\|鋼管混凝土柱試件進行擬靜力試驗，得到了該類型柱的破壞模式及其塑性鉸的長度范圍。研究結(jié)果表明：該類型柱在高軸壓比下的滯回曲線仍呈穩(wěn)定豐滿的梭形，具有較好的延性性能；等效塑性鉸長度是其截面高度的0-85～0-92倍。并對試驗研究和理論分析得到的塑性鉸長度進行了對比，結(jié)果吻合較好。
［關(guān)鍵詞］組合柱； 塑性鉸長度； 軸壓比； 含骨率
中圖分類號：TU398文獻標識碼：A文章編號：1002-848X(2017)01-0100-04
Research on plastic hinge length of steel tubular column filled with steel-reinforced concrete
Yang Deshan
（Architecture and Civil Engineering Institute, Inner Mongolia University of Science and Technology, Baotou 014010, China）
Abstract:To study the seismic performance and plastic hinge length of steel tubular column filled with steel-reinforced concrete, quasi-static tests were carried out on four steel tubular columns filled with steel-reinforced concrete with different axial compression ratios and steel ratios. The failure pattern and the length scope of plastic hinge were gotten. The results show that the hysteresis loop of this type of columns still shows a plump spindle-shape at a higher axial compression ratio and this type of columns have better ductility. Equivalent plastic hinge lengths of specimens are 0-85～0-92 times the height of the cross section. Plastic hinge lengths calculated by the tests and theoretical analysis are compared, results are similar.
Keywords:composite column; plastic hinge length; axial compression ratio; steel ratio
*內(nèi)蒙古科技大學創(chuàng)新基金項目（2012NCL041）。
作者簡介：楊德山，碩士，Email：yangdeshan1989@163.com。
