- 摘 要
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(中國建筑科學(xué)研究院 北京 100013)
【提要】 對6種國外規(guī)范(DIN 1045(88),EN1992,Model Code 90,F(xiàn)IPRecommendations 1996,BS8110—97,ACI318—02)和國內(nèi)規(guī)范(GB50010—2002)的沖切承載力計算公式進行了詳細的闡述與計算比較,選取三種規(guī)范(GB50010—2002,ACI318—02,歐洲EN1992)進行相應(yīng)的沖切影響因素在計算公式中考慮差異比較。通過比較分析可知,國外規(guī)范考慮不同的混凝土強度取值、縱筋配筋率等,其計算值與實際沖切破壞更加吻合。
【關(guān)鍵詞】 沖切承載力 鋼筋混凝土 規(guī)范 比較
Discussion on Calculating Punching Shear Strength of Reinforced Concrete Slabs and Footings According to Different Codes/Liu Liqu(China Academy of Building Research,Beijing 100013,China)
Abstract:To calculating punching shear strength,six codes including DIN 1045(88),EN1992,Model Code 90,F(xiàn)IPRecommendations 1996,BS8110—97,ACI318—02 and our country"s code(GB50010—2002) are chosen to discuss and compare. Discussions according to different codes are shown that foreign codes" provisions are always directly dependent on the recent research result of punching tests,and in good agreement with a wide range of experimental data.
Keywords:punching shear strength;reinforced concrete;code;compari