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(石家莊經(jīng)濟學(xué)院勘查技術(shù)與工程學(xué)院, 石家莊 050031)
[摘要]為了研究高配箍率鋼筋混凝土柱在高軸壓比下的受力性能,對兩組軸壓比分別為0.4和0.6、體積配箍率為1.89%的4個試件進(jìn)行單調(diào)加載和低周反復(fù)加載試驗,研究了鋼筋混凝土柱的破壞形態(tài)、承載能力、滯回特性和耗能能力。結(jié)果表明:試件變形主要以彎曲變形為主,彎曲變形約占總變形的90%,當(dāng)配箍率為1.89%時,即使軸壓比較大,試件仍具有較強承載能力、變形能力和耗能能力。
[關(guān)鍵詞]鋼筋混凝土柱; 高軸壓比; 高配箍率; 受力性能
中圖分類號:TU375.3 文獻(xiàn)標(biāo)識碼:A 文章編號:1002-848X(2014)15-0061-05
Experiment study on the mechanical performance of reinforced concrete columns under high axial compression ratio
Xie Yongping, Jia Lei
(College of Exploration Technology and Engineering, Shijiazhuang University of Economics, Shijiazhuang 050031, China)
Abstract: In order to study the mechanical performance of reinforced concrete column with high stirrup ratio under high axial compression ratio, low cyclic loading test and monotonic loading test were conducted on four reinforced concrete columns under axial compression ratio of 0.4 and 0.6 and stirrup ratio of 1.89%. The failure mode, bearing capacity, hysteretic characteristics and energy dissipation capacity were studied. The results show that bending deformation accounts for about 90% of the total deformation, and the members have strong bearing capacity, deformation ability and energy dissipation capacity when stirrup ratio is 1.89% despite the high axial compression ratio.
Keywords: reinforced concrete column; high axial compression ratio; high stirrup ratio; mechanical performance
作者簡介:解詠平,博士,講師,Email:axypa@163.com。
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