非金筋材海水集料混凝土梁正截面承载力分析与试验研究  

Analysis and Experimental Research on Flexural Capacity of SAP Concrete Beam Reinforced with FRP

作　　者：郑国欣 程华[1] 朱国华[1] 

机构地区：[1]后勤工程学院军事土木工程系,重庆401331

出　　处：《后勤工程学院学报》2017年第1期6-10,20,共6页Journal of Logistical Engineering University

基　　金：全军后勤科研计划项目(BY214J013)

摘　　要：对非金筋材海水集料混凝土梁正截面承载力设计方法进行了研究,基于刚度控制和蠕变特性分析了梁构件的受弯性能,提出非金筋材海水集料混凝土梁的设计建议以及其极限弯矩、开裂弯矩的建议计算公式。制作4根6 m长的碳-玻纤维筋海水集料混凝土梁,采用两点加载的方式进行弯曲试验,研究了非金筋材海水集料混凝土梁的破坏形式及受弯变形性能,测定了梁构件的开裂荷载和极限荷载值,结果表明设计建议合理,方法具有适用性,承载力计算值与试验结果吻合较好。The design method of the flexural capacity of SAP concrete beam reinforced with fiber reinforce plastic was ana-lyzed, the bending performance of this beam was explored based on stiffness control and creep characteristics, and on which designtheories for this beam was systemically studied. Computing formulas of the ultimate bearing capacity and the cracking moment of thecomponent had been put forward, respectively. Four 6-meter long SAP concrete beams reinforced with carbon-glass fiber tendonwere prepared for performing destructive bending test by loading onto two points. Then the beams are tested under static flexuralloading to investigate the cracking patterns under all levels of load. The modes of failure, characteristic of deformation and load-car-rying capacities are evaluated in the test. It turns out that the design method is reasonable, and calculated values of bearing capacityare in close agreement with the experiment results.

关 键 词：非金筋材 海水集料混凝土梁 正截面承载力 设计方法 

分 类 号：TU377[建筑科学—结构工程]