摘要
通过拉拔法,对95个植筋拉拔试件进行研究,考虑混凝土强度、植筋直径、埋深、孔径大小、保护层厚度、钢筋外形等因素对植筋粘结锚固性能的影响,试验表明,植筋破坏主要分为五种,并对每种破坏从机理上进行了分析,给出了考虑多种影响因素的粘结力计算公式,并对实际应用中需要注意的问题进行了探讨。
95 test samples of embedded steel bar are researched by using pull-out method,and consideration is made to the influences of concrete strength,diameter of embedded steel bar,burial depth,hole size,thickness of protection layer,shape of steel bar,etc.,on the bond anchorage performance of embedded steel bar.The test results indicate that the damages of embedded steel bar are mainly divided into five types,each of which is analyzed on the aspect of mechanism.Bond force calculation formula involving many influencing factors is given and some important problems which may be encountered during practical application are discussed.
出处
《建筑技术》
北大核心
2011年第4期348-350,共3页
Architecture Technology
基金
国家高技术研究发展(863)计划项目子课题(2008AA030704)
关键词
植筋
锚固力
拉拔法
拉拔试验
粘结锚固
埋深
embedded steel bar
anchorage force
pull-out method
pull-out test
anchorage bond
depth of burying
