挤压套管钢筋冷连接节点力学性能试验  

Cold Extrusion Sleeve Reinforced Connection Node Mechanics Performance Test

作　　者：梁越[1,2] 罗宏 储昊 李德华 刘常全 LIANG Yue LUO Hong CHU Hao LI Dehua LIU Changquan(Key Laboratory of Hydraulic and Waterway Engineering of MOE and National Engineering Research Center for Inland Waterway Regulation, Chongqing Jiaotong University, Chongqing 400074, China Key Laboratory of MOE for Geomeehanics and Embankment Engineering, Hohai University, Nanjing 210098, China Changjiang Chongqing Waterway Engineering Bureau, Chongqing 400074, China)

机构地区：[1]重庆交通大学水利水运工程教育部重点实验室暨国家内河航道整治工程技术研究中心,重庆400074 [2]河海大学岩土力学与堤坝工程教育部重点实验室,江苏南京210098 [3]长江重庆航道工程局,重庆400074

出　　处：《人民黄河》2017年第1期51-53,共3页Yellow River

基　　金：国家自然科学基金资助项目(51349007);重庆市教委科学技术研究项目(KJ130412);重庆市基础与前沿研究计划项目(cstc2013jcyj A30006)

摘　　要：挤压冷连接试验是针对四面六边透水框架节点力学性能而进行的试验研究。通过万能试验机的抗拉试验对比传统的焊接抗拉强度,试验设计套管材料、千斤顶尖角角度、压痕长度、千斤顶输出压力和钢筋表面光滑程度5种因素,探索不同因素对套管挤压钢筋冷连接节点抗拉强度的影响,并找到最优组合。通过对试验数据分析得出,在无缝钢管材料、千斤顶尖角角度为43°、压痕长度为4 cm、压力为50 MPa和带肋钢筋为最优组合。Cold extrusion connection experiment is for all six sides permeable frame node to the mechanical properties of experimental research. Through the universal testing machine tensile test compared with the traditional welding tensile strength, in the test design of five factors ： casing material, jack angle, length of indentation, jack output pressure and steel surface is smooth, it explored various factors of casing extrusion reinforced the bond strength, showed the influence of the tensile strength and found out the optimal combination. By analyzing the test data, it shows that the experiment in seamless steel tube material, jack 43°, indentation 4 cm and 50 MPa pressure factors combination under cold and ribbed bar connection tensile strength is the best.

关 键 词：四面六边透水框架 冷连接 钢套管 力学性能 

分 类 号：TV861[水利工程—水利水电工程] TU32[建筑科学—结构工程]