结构改造中梁、柱节点的连接方法及受力性能试验研究
|
摘要
结合植筋技术在实际结构改造工程中的应用,设计了4种新增梁柱节点试件,并通过改变节点核心区植筋的数量及植筋位置,并通过静力加载模型试验,对试件的开裂荷载、屈服荷载、极限承载力及破坏特征等方面做了对比分析,得出合理的植筋数量及布置方式,供工程设计及施工参考。静力试验表明,通过增加一定数量的附加植筋可以改善梁端破坏时塑性铰的位置,并提高构件的极限承载力。
Combined the embedded steel bars technology applied in actual structure reconstruction project,four kinds of beam-column joint specimens were designed.Through changing the number and positions of the planting bar in core region and the static loading model test,the cracking load,yield load,ultimate bearing capacity and failure characteristics were analyzed,and then the reasonable number and disposal way of the planting steel bar were conducted to provide reference to engineering design and construction.The static test shows that through increasing some quantity of additional planting steel bar,the position of plastic hinge can be improved when the beam-end is failure and the ultimate bearing capacity of component can be increased.
Combined the embedded steel bars technology applied in actual structure reconstruction project,four kinds of beam-column joint specimens were designed.Through changing the number and positions of the planting bar in core region and the static loading model test,the cracking load,yield load,ultimate bearing capacity and failure characteristics were analyzed,and then the reasonable number and disposal way of the planting steel bar were conducted to provide reference to engineering design and construction.The static test shows that through increasing some quantity of additional planting steel bar,the position of plastic hinge can be improved when the beam-end is failure and the ultimate bearing capacity of component can be increased.
引文
[1]范锡盛,曹薇,岳清瑞.建筑物改造和维修加固新技术.中国建材工业出版社,1999
[2]霍林生.汶川地震钢筋混凝土框架结构震害调查与启示[J].大连理工大学学报,2009 HUO Lin-sheng.Earthquake damage investigation and analysis of reinforced concrete frame structures in Wenchuan earthquake[J].Journal of Dalian University of Technology,2009
[3]王振领.新老混凝土结合面抗剪性能试验研究[J].西南交通大学学报,2005 WANG Zhen-hng.Experimental Research on Shear Properties of New-to -Old Concrete Interface[J].Journal of Southwest Jiaotong University, 2005
[4]阎锋.在钢筋混凝土基材上植筋的拉拔试验研究[J].建筑技术,2003 YAN Feng.The research on the drawing test of planting bars in the reinforced concrete[J].Architecture Technology,2003
[5]司伟建,周新刚,黄金枝,等.混凝土结构植筋黏结锚固性能的试验研究[J].建筑结构,2001,31(3):9-12 SI Wei-jian,ZHOU Xin-gang,HUANG Jin-zhi,et al.Experimental research on the bonding and ancho-ring behaviors of reinforced bars inserted in concretestructure[J].Building Structure,2001,31(3):9 - 12
[2]霍林生.汶川地震钢筋混凝土框架结构震害调查与启示[J].大连理工大学学报,2009 HUO Lin-sheng.Earthquake damage investigation and analysis of reinforced concrete frame structures in Wenchuan earthquake[J].Journal of Dalian University of Technology,2009
[3]王振领.新老混凝土结合面抗剪性能试验研究[J].西南交通大学学报,2005 WANG Zhen-hng.Experimental Research on Shear Properties of New-to -Old Concrete Interface[J].Journal of Southwest Jiaotong University, 2005
[4]阎锋.在钢筋混凝土基材上植筋的拉拔试验研究[J].建筑技术,2003 YAN Feng.The research on the drawing test of planting bars in the reinforced concrete[J].Architecture Technology,2003
[5]司伟建,周新刚,黄金枝,等.混凝土结构植筋黏结锚固性能的试验研究[J].建筑结构,2001,31(3):9-12 SI Wei-jian,ZHOU Xin-gang,HUANG Jin-zhi,et al.Experimental research on the bonding and ancho-ring behaviors of reinforced bars inserted in concretestructure[J].Building Structure,2001,31(3):9 - 12
版权所有：© 2023 中国地质图书馆 中国地质调查局地学文献中心