混凝土植筋群锚效应试验分析  

Experimental Research on Anchor Group Effect of Concrete Anchorage

作　　者：史三元[1] 崔立杰[2] 

机构地区：[1]河北工程大学土木工程学院,河北邯郸056038 [2]邯郸职业技术学院建筑工程系,河北邯郸056001

出　　处：《煤炭工程》2014年第1期129-131,共3页Coal Engineering

摘　　要：文章通过植筋试件的拉拔试验,研究了混凝土植单筋与植群筋在拉拔力作用下的破坏形态、极限荷载、植筋滑移、群锚效应和刚度延性分析,讨论了多根植筋组合效应对混凝土植筋锚固极限承载力的影响。结果表明:随着植筋数量的增加,群锚效应越加明显,植筋初始滑移量明显减少,当植筋数量为两根或三根时,表现效果最好。Pull- out tests were conducted on specimens to investigate the failure mode, ultimate load, anchorage slip, anchor group effect, stiffness and ductility of single planted bar and group planted bars in concrete under different drawing forces. The influence of planted bars on the anchorage ultimate load was discussed. The results show that the anchor group effect improves as the amount of planted bar increases, and the initial slip of anchorage is significantly reduced, the specimens with two or three planted bars show the best anchorage performance.

关 键 词：植筋 极限承载力 群锚效应 

分 类 号：TU37[建筑科学—结构工程]