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带型钢接头的预制钢筋混凝土梁静力性能研究

Study on static performance of precast reinforced concrete beams with steel end connectors
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摘要 采用ABAQUS有限元软件对固定边界条件下带型钢接头的预制钢筋混凝土梁建立了有限元数值模型,并对其进行了非线性受力分析和参数化分析。研究结果表明:当预制梁按钢梁的受弯承载力大于混凝土梁的受弯承载力和"强剪弱弯"原则进行设计时,其最终破坏模式主要为梁纵向钢筋屈服、近结合段梁混凝土压溃,形成塑性铰而发生破坏。在本文研究的参数范围内,增加梁纵筋配筋率和结合段钢梁预埋长度可以提高预制钢筋混凝土梁的初始刚度和承载能力;而增加钢梁段长度,预制钢筋混凝土梁初始刚度变化较小,承载能力却逐渐提高。100 mm的结合段箍筋间距可以使结合段钢梁与其周围的混凝土协调工作。
作者 陈坤 阮海燕 CHEN Kun;RUAN Hai-yan
出处 《工程与建设》 2020年第6期1119-1121,共3页 Engineering and Construction
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