带栓钉型钢混凝土组合构件受力性能及承载力计算方法研究  

RESEARCH ON MECHANICAL BEHAVIOR AND BEARING CAPACITY CALCULATION METHOD OF STEEL REINFORCED RECYCLE AGGREGATE CONCRETE COMBINED COMPONENT WITH STUD CONNECTERS

作　　者：郑华海[1] 陈宗平[2,3] 苏益声[2] 

机构地区：[1]同济大学建筑工程系,上海200092 [2]广西大学土木建筑工程学院,南宁530004 [3]广西大学工程防灾与结构安全教育部重点实验室,南宁530004

出　　处：《工业建筑》2016年第11期97-104,共8页Industrial Construction

基　　金：国家自然科学基金项目(51268004;51578163)

摘　　要：采用位移控制的加载方法对7个设置栓钉的型钢混凝土组合构件和1个未设置栓钉的对比试件进行推出试验。以栓钉直径、栓钉设置位置以及混凝土强度等为变化参数,研究型钢混凝土组合构件的破坏形态、黏结性能和极限受剪承载力。试验结果表明:栓钉受剪承载力随栓钉直径的增大、混凝土强度的提高而提高;腹板设置栓钉的试件抗剪性能优于翼缘的;翼缘和腹板均设置栓钉的试件承载性能最好,且能有效地限制滑移向自由端发展。分别对国内外不同技术标准建议的栓钉受剪承载力计算式进行分析比较,指出不同设计方法的合理应用范围。最后,在分析试验结果基础上提出型钢非埋入式栓钉受剪承载力的计算方法。Displacement controlled loading method was used to conduct push-out test of 7 SRC combined component specimens with studs and 1 specimen without studs. By considering stud diameter,stud positions and concrete compressive strength,SRC specimens＇ failure pattern,bond behaviour and stud shear capacity were investigated. The results showed that stud shear capacity was enhanced by increasing concrete compressive strength or stud diameter;studs set in web specimens＇ shear performance was more effective than studs set in flange; while studs were set in flange and web,specimens＇ carrying performance was the best,and the free end slid could be effectively limited. This paper made a comparison of several formulas given by different countries for calculating shear capacity,and pointed out the rational application range of different design methods. At last,the shear capacity calculation method for steel no-buried stud was put forward based on analyzing the test results.

关 键 词：型钢混凝土 栓钉 黏结 滑移 承载力计算 

分 类 号：TU398.9[建筑科学—结构工程]