钢桁梁拼接节点中环槽铆钉预紧力试验研究

王琨,刘永健,张太科,崔高炎,郭峰超,刘震北,马文杰

Experimental study on pre-tightening force of ring groove rivets in steel truss beam’s splicing joints

Kun WANG,Yongjian LIU,Taike ZHANG,Gaoyan CUI,Fengchao GUO,Zhenbei LIU,Wenjie MA

表 4 底板上不同区域的铆钉预紧力变化

Tab.4 Changes in pre-tightening force of rivets in different areas of bottom plate

测试区域 ΔPmax /kN Rmax /% ΔParea /kN 群铆中心 24.30 6.93 6.11 象限中心 18.90 5.01 2.76 群铆边缘 14.32 3.81 3.09