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  壽楠椿  張巍  竹學(xué)葉
  （鄭州工學(xué)院 450002）

[提要]  應(yīng)用混凝土線性徐變理論的齡期調(diào)整彈性模量法，探討了鋼筋混凝土壓桿徐變穩(wěn)定性分析的靜力法和有限元法。通過虛功方程導(dǎo)出了這種壓桿徐變穩(wěn)定性分析的單元剛度方程，并利用所研制的相應(yīng)程序作了算例考核。
[關(guān)鍵詞]  鋼筋混凝土壓桿 徐變 穩(wěn)定性 有限元法

Applying the age-adjusted effective modulus method, this paper discusses the static method and finite element method for analysing the creep stability of reinforced concrete coulmns. By using of virtual work equations, formulas of finite element method are derived. At the end, an example is analysed with two methods respectively, which shows that the result of finite element method convergences very quickly and has a good accordance with that of static method.
Keywords: reinforced concrete column; creep stabrlity; finite element method