预制混凝土夹心保温墙体棒状不锈钢连接件研发与抗拔性能试验研究
|
摘要
研发了一种适用于预制混凝土夹心保温墙体的棒状不锈钢连接件,该连接件由不锈钢棒、倒锥形十字肋和套环组成,具有锚固性能好、便于安装的特点。通过拔出试验,对其拔出破坏形态与抗拔承载力等进行了较为系统的研究。结果表明:棒状不锈钢连接件的拔出破坏形态为连接件端部混凝土劈裂破坏;破坏时连接件自身应变较小,极限应变为屈服应变的40%;连接件的抗拔承载力为14.8k N,具有较大安全余量。
A new kind of rod-like stainless steel connector for precast concrete sandwich insulation wall panels is developed. The connector is made of stainless steel rod,tapered cross rib and ring with characteristics of good anchoring and easy installation. Based on pull-out test,the failure mode and the pull-out capacity of rod-like stainless steel connector are fully studied. The results show that the failure is the concrete splitting at the end of connectors. The strain of the connectors is small when specimens are damaged,and the limit strain is 40% of the yield strain. The pull-out capacity of the connector is14. 8 k N and has a great safety margin.
A new kind of rod-like stainless steel connector for precast concrete sandwich insulation wall panels is developed. The connector is made of stainless steel rod,tapered cross rib and ring with characteristics of good anchoring and easy installation. Based on pull-out test,the failure mode and the pull-out capacity of rod-like stainless steel connector are fully studied. The results show that the failure is the concrete splitting at the end of connectors. The strain of the connectors is small when specimens are damaged,and the limit strain is 40% of the yield strain. The pull-out capacity of the connector is14. 8 k N and has a great safety margin.
引文
[1]顾天舒,谢连玉,陈革.建筑节能与墙体保温[J].工程力学,2006,23(2):167-184.
[2]郝先成.节能型外墙保温隔热材料系统研制与应用[D].武汉:武汉理工大学,2006.
[3]朱文祥,吴志敏,张海遐,等.预制夹心保温墙体连接件的研究现状[J].建筑节能,2017,45(4):48-51.
[4]薛伟辰,杨佳林,王君若.预制夹心保温墙体FRP连接件抗拔性能试验研究[J].玻璃钢/复合材料,2012(4):55-59.
[5]杨佳林,薛伟辰,栗新.预制夹心保温墙体FRP连接件的力学性能试验[J].江苏大学学报(自然科学版),2013,34(6):723-729.
[6]杨佳林,薛伟辰.预制夹心保温墙体FRP连接件应用进展[J].低温建筑技术,2012(8):139-142.
[7]李亚,胡翔,姜伟庆,等.预制混凝土夹心保温墙体不锈钢连接件研究进展[J].墙材革新与建筑节能,2016(12):50-53.
[8]Peikko Group.PD Diagonal Tie[R].2016.
[9]HALFEN.Halfen Sandwich Panel Anchors[R].2012.
[10]薛伟辰,胡翔,姜伟庆.桁架型不锈钢连接件静力性能研究报告[R].上海:同济大学,2014.
[2]郝先成.节能型外墙保温隔热材料系统研制与应用[D].武汉:武汉理工大学,2006.
[3]朱文祥,吴志敏,张海遐,等.预制夹心保温墙体连接件的研究现状[J].建筑节能,2017,45(4):48-51.
[4]薛伟辰,杨佳林,王君若.预制夹心保温墙体FRP连接件抗拔性能试验研究[J].玻璃钢/复合材料,2012(4):55-59.
[5]杨佳林,薛伟辰,栗新.预制夹心保温墙体FRP连接件的力学性能试验[J].江苏大学学报(自然科学版),2013,34(6):723-729.
[6]杨佳林,薛伟辰.预制夹心保温墙体FRP连接件应用进展[J].低温建筑技术,2012(8):139-142.
[7]李亚,胡翔,姜伟庆,等.预制混凝土夹心保温墙体不锈钢连接件研究进展[J].墙材革新与建筑节能,2016(12):50-53.
[8]Peikko Group.PD Diagonal Tie[R].2016.
[9]HALFEN.Halfen Sandwich Panel Anchors[R].2012.
[10]薛伟辰,胡翔,姜伟庆.桁架型不锈钢连接件静力性能研究报告[R].上海:同济大学,2014.