2010年4月 施工技术 第39卷第4期 CONSTRUCTION TECHNOLOGY 85 钢管支架用直角扣件抗滑移试验研究 肖炽1，周观根2，杨乾慧3 (1.东南大学土木工程学院，江苏南京210096；2.浙江东南网架股份有限公司，浙江杭州311209； 3.杭州萧山区质量计量监测中心，浙江杭州311202) [摘要]扣件式钢管脚手架用于承重支架时，立杆、水平杆、斜杆相互间用扣件连接.通过对直角扣件施加不同的 扭紧力矩，对新旧扣件进行试验研究，得出扣件螺栓扭紧力矩与抗滑移的关系，并提出抗滑移系数的概念.指出扣 件式钢管支架安装时扣件扭紧力矩必须≥40m;对于新扣件，扭紧力矩增大，抗滑移有一定提高，但对于旧扣件， 容易造成滑丝，不安全.目前市场上T形螺纹质量较差，建议施工前对旧扣件螺栓进行检查. [关键词]钢管支架；直角扣件；抗滑移；试验研究 [中图分类号1TU502.6 [文献标识码]A [文章编号]1002-8498(2010)04-0085-02 Experimental Study on Anti-sliding Performance of Right Angle Fastener Used for Steel Tubular Stent Xiao Chi' Zhou Guan'gen2 Yang Qianhui (1.School of Civil Engineering Southeast Unipersity Nanjing Jiangsu 210096 China; 2.Zhejiang Southeast Space Frame Co.Lad.Hangzhou Zhejiang 311209 China; 3.Xiaoshan Region Quality and Measure Monitoring Center Hangzhou Zhejiang 311202 China Abstract:When fastener-style steel tubular scaffold is as bearing stent upright stanchion horizontal bar and oblique bar are connected by fastener.Through experimental study on new and old fasteners applying different tightening moment on right angle fastener the relationship of tightening moment of fastener bolt and anti-sliding performance is gained and the anti-sliding coefficient is indicated.It is indicated that the tightening moment of fastener must be greater than and equal to4ONm as new fastener anti-sliding performance can improve as tightening moment increase however sliding wire is easy for old fastener. Because of low quality of T-shape thread checking old bolt be...
钢管支架用直角扣件抗滑移试验研究.pdf
