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(1 同濟大學建筑工程系  上海 200092；2 中華人民共和國建設部  北京 100835)
【提要】  鋼筋和GFRP筋合理混雜配置，可較大程度地提高混凝土結構的耐久壽命，是一種優(yōu)良的配筋形式。通過8根混雜配筋混凝土梁的抗彎試驗，分析了混雜配筋混凝土梁裂縫和荷載撓度的特點，并根據試驗結果和理論分析，推薦了混雜配筋混凝土梁裂縫寬度和撓度的計算方法。
【關鍵詞】  混凝土梁  GFRP筋  混雜  裂縫寬度  荷載撓度
Research on Calculation Method of Crack and Deflection of SteelGFRP Reinforced Concrete Beams/Qu Wenjun1,Zhang Jian1,Huang Haiqun2(1 Department of Building Engineering, Tongji University,Shanghai 200092, China；2 Ministry of Construction P.R. China, Beijing 100835, China)
Abstract:Proper hybrid distribution of steel bars and GFRP bars can improve the durability of concrete structures in significantly, thus it is an excellent reinforcement format. Flexural capacities of eight hybrid reinforced concrete beams are tested. Based on the test results,the characteristics of crack and load\|deflection relation of hybrid reinforced concrete beam are studied and a method is suggested for calculating the crack width and deflection of the hybrid reinforced concrete beam.
Keywords:concrete beam；glass fiber reinforcement polymer bar；hybrid；crack width；load\|deflection relation
*國家自然科學基金資助項目(50178050)。