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（1 南昌大學(xué)建筑工程學(xué)院，南昌 330029； 2 中國對外建設(shè)工程總公司，北京 100048）

［摘要］根據(jù)適用于彎剪扭構(gòu)件最小配筋率的界限條件，推導(dǎo)得出受扭鋼筋最小配筋率的計(jì)算表達(dá)式。在一般房屋結(jié)構(gòu)構(gòu)件常用范圍內(nèi)，將計(jì)算結(jié)果與我國《混凝土結(jié)構(gòu)設(shè)計(jì)規(guī)范》(GB50010—2002)的規(guī)定分析對比，并提出修改該規(guī)范有關(guān)條文的建議。

［關(guān)鍵詞］彎剪扭構(gòu)件；純扭構(gòu)件；受扭縱向鋼筋最小配筋率

Minimum reinforcement ratio of reinforced concrete torsion-bending-shear members

Wu Weixiu¹, Liu Shengpeng², Yu Jinhui¹, Lu Xiaozhu¹ (1 School of Architecture Engineering, Nanchang University, Nanchang 330029, China;2 China Construction International Incorporated, Beijing 100048, China)

Abstract:Based on the limits situation of the minimum reinforcement ratio of reinforced concrete torsion-bending-shear members, the formulas for the minimum ratio of the torsion stirrup and the longitudinal steel of members were obtained. The results of the formulas were contrasted with Code for Design of Concrete Structures (GB50010—2002) within the range of common used building structural members. The proposal concerning modified formula of this code was presented.

Keywords:torsion-bending-shear members; pure torsion member; minimum ratio of longitudinal steel

*南昌大學(xué)?；鹫n題(Z03307)。

作者簡介：伍衛(wèi)秀，碩士，副教授，Email:wuweixiu@gmail.cn。

參考文獻(xiàn)

［1］GB50010—2002 混凝土結(jié)構(gòu)設(shè)計(jì)規(guī)范［S］.北京：中國建筑工業(yè)出版社，2002.

［2］何高勖，虞錦暉.鋼筋混凝土矩形截面受扭構(gòu)件的最小配筋率［J］.建筑結(jié)構(gòu)，1994，24(10).

［3］伍衛(wèi)秀，趙青，虞錦暉. 鋼筋混凝土彎剪扭構(gòu)件的受扭界限配筋［J］.建筑結(jié)構(gòu)，2009, 39(2):39-40.