【摘要】 为了充分发挥双钢筋的技术优势,拓宽双钢筋技术的使用范围,对采用直径为14mm的热轧带肋三级钢筋焊制大直径双钢筋的构件作了分析研究。重点研究了大直径双钢筋受弯构件的刚度及变形计算,同时从粘结机理角度分析了双钢筋工作机理,对双钢筋构件的变形特征作了较完整的理论解释,并提出了相应的大直径双钢筋混凝土构件的刚度建议计算公式。更多还原

【Abstract】 In order to take enough advantage of bi - steel and extend application, this paper studies the problem of welding big - diameter bi - steel with 3 grades hot rolled ribbed steel of diameter of 14 mm. This paper emphasizes on rigidity of bending structure with big - diameter bi - steel. Besides,the authors analyze the work mechanism of bi - steel from angles of bonding mechanism and explain the characteristic of bi - steel structure. The calculating formulas of rigidity are presented.更多还原