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(1 中國天辰工程有限公司，天津 300400； 2 中國天辰工程有限公司上海分公司，上海 200233)

［摘要］介紹了在鋼筋混凝土梁下部或梁截面高度范圍內(nèi)的集中荷載作用下，提高斜截面承載力的加固方法。應(yīng)用該方法，不但提高了梁的斜截面承載力，同時也較大程度地提高了梁的受彎承載力和剛度，在實(shí)際工程中收到了良好的效果。

［關(guān)鍵詞］集中荷載;拉脫效應(yīng);承載力;加固方法

Method for enhancing shear bearing capacity of reinforced concrete beams under concentrated load

Zhang Rongshan¹, Zhang Peng¹, He Rong²(1 China Tianchen Engineering Corporation, Tianjin 300400, China; 2 China Tianchen Engineering Corporation, Shanghai Branch, Shanghai 200233, China)

Abstract: A reinforced method to enhance the shear bearing capacity when the reinforced concrete beams are subjected to the concentrated load on the bottom or in the section height of the beam is introduced. The method enhances not only the shear bearing capacity, but also the bending resistant capacity and the rigidity of the beam. It has very good effect applied in the engineering practice and  can be reference in the engineering based on the project situation.

Keywords:concentrated load; pull-out effect; bearing capacity; reinforced method

參考文獻(xiàn)

［1］張榮山，等. 工程結(jié)構(gòu)常見弊病與防治［M］.北京：中國建筑工業(yè)出版社，2007.

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

［3］GB50017—2003鋼結(jié)構(gòu)設(shè)計規(guī)范［S］.北京：中國計劃出版社，2003.