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 (湖南文理學(xué)院， 常德 415000)

［摘要］采用雙模量彈性理論研究了鋼筋混凝土構(gòu)件正截面承載力的計(jì)算。利用鋼筋混凝土構(gòu)件受壓應(yīng)力與應(yīng)變本構(gòu)關(guān)系，由截面靜力平衡條件推導(dǎo)出了采用鋼筋混凝土本構(gòu)關(guān)系計(jì)算構(gòu)件正截面承載力的方法，并將該方法應(yīng)用于受彎構(gòu)件和短柱的正截面承載力的計(jì)算。最后通過算例將該方法的計(jì)算結(jié)果與相關(guān)規(guī)范方法的計(jì)算結(jié)果進(jìn)行比較。

［關(guān)鍵詞］鋼筋混凝土; 截面; 承載力; 雙模量; 本構(gòu)關(guān)系

中圖分類號：TU375       文獻(xiàn)標(biāo)識碼：A       文章編號：1002-848X(2014)09-0068-04

Calculation for normal section bearing capacity of reinforced concrete members using the constitutive relation

Wu Xiao, Yang Lijun, Huang Zhigang

（Hunan University of Arts & Science, Changde 415000, China）

Abstract: Normal section bearing capacity of reinforced concrete members was calculated based on bi-modulous elasticity theory. On the basis of the compressive stress-strain constitutive relation of reinforced concrete members, a method for calculating normal section bearing capacity of members based on reinforced concrete constitutive relation was deduced by means of static equilibrium conditions of section. The method was applied in calculating normal section bearing capacity of flexural members and short columns. In the end, the calculating results of the method were compared with that of relevant code methods through examples.

Keywords: reinforced concrete; section; bearing capacity; bi-modulous; constitutive relation

*湖南省科技計(jì)劃項(xiàng)目(湘財(cái)企指［2011］65號)，湖南省“十二五”重點(diǎn)建設(shè)學(xué)科資助項(xiàng)目(湘教發(fā)2011［76］)。

通訊作者：楊立軍，博士研究生，副教授，Email:yanglj9601@163.com。

參考文獻(xiàn)

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