建筑结构学报2017，Vol.38Issue(3)：67-75,9.DOI:10.14006/j.jzjgxb.2017.03.007
梁侧锚固钢板加固高温后混凝土梁受剪性能试验研究
Experimental study on shear performance of bolted-side plated strengthening fire-damaged reinforced concrete beams
摘要
Abstract
To study the shear performance of fire-damaged reinforced concrete (RC) beams repaired by bolted-side plating (BSP) technique,six RC beam specimens were fabricated,including five beams that were firstly exposed to fire in accordance with international standards ISO 834 temperature curve and then retrofitted using the BSP technique.The influence of the plate depth and bolt spacing on the shear strength,ductility and stiffness of fire-damaged RC beams was investigated.The testing results indicated that the BSP method can significantly increase the shear capacity of fire-damaged RC beams and improve the overall mechanical performance.The strengthening effect increases as the increase of plate depth and the decrease of bolt spacing.Both longitudinal and transverse slips coexist on the plate-RC interface of specimens.The bolt spacing exerts an important influence on the degree of collaborative work between the plate and the RC beam.关键词
钢筋混凝土梁/梁侧锚固钢板/受火试验/静力试验/受剪性能Key words
reinforced concrete beam/bolted side-plating/fire test/static test/shear performance分类
建筑与水利引用本文复制引用
姜常玖,陆洲导,李凌志,刘波洲..梁侧锚固钢板加固高温后混凝土梁受剪性能试验研究[J].建筑结构学报,2017,38(3):67-75,9.基金项目
国家自然科学基金项目(51378397,51408436). （51378397,51408436）
