摩擦型高强度螺栓连接件抗滑移系数试验研究  

EXPERIMENTAL STUDY ON ANTI-SLIDING COEFFICIENT OF FRICTION TYPE HIGH-STRENGTH BOLT CONNECTORS

作　　者：宋明志[1,2] 徐觉慧 吕恒林[3] 王勇 

机构地区：[1]淮海工学院士小工程学院,江苏连云港222005 [2]国家网架及钢结构产品质量监督检验中心,江苏徐州221006 [3]中国矿业大学建筑工程学院,江苏徐州221116

出　　处：《工业建筑》2009年第12期102-104,共3页Industrial Construction

基　　金：江苏省质量技术监督局科技项目(KJ092119);徐州科技发展基金项目(XJ08089)

摘　　要：抗滑移系数是钢结构高强度螺栓连接的重要指标,在保证钢结构连接的可靠性方面具有重要意义,但影响抗滑移系数的因素很多。对5组(25套)摩擦型高强度螺栓试件从喷丸方式、存放时间以及预拉力控制方法等方面对抗滑移系数进行相关的试验研究,发现正面喷丸除锈方式比常规喷丸方式更具优越性;随试件存放时间增加,抗滑移系数也有一定的提高;利用在螺杆上粘贴应变片来控制预拉力方式测定抗滑移系数的可靠性高于轴力计控制预拉力方式。Anti-sliding coefficient is an important index which has important significance for ensuring connection reliability of steel structure. However, many factors can effect on it. Therefore, friction-typed high-strength bolt connection antisliding coefficient was studied on the side of shot peening mode, resting period and pretension controlling method with 5 series specimens （25 sets） . Some conclusions were drawed by experiments. Firstly, front shot peening mode was better than conventional mode in increasing anti-sliding coefficient. Secondly, anti-sliding coefficient could be increased by means of prolonging resting period of piece. Lastly, method of pretension controlling by strain gage had higher reliability than using axial-force meter in determining anti-sliding coefficient.

关 键 词：摩擦型高强螺栓 抗滑移系数 喷丸方式 存放时间 预拉力控制方法 

分 类 号：TU391[建筑科学—结构工程]