HAN Tengfei, XU Gang, LI Liang, LI Xiaodong, XI Xiangdong. RESEARCH AND APPLICATION OF SHEAR RESISTANCE OF FRICTION CONNECTION WITH HIGH STRENGTH BOLTS[J]. INDUSTRIAL CONSTRUCTION, 2020, 50(11): 133-136. doi: 10.13204/j.gyjzG201909120001
Citation:
HAN Tengfei, XU Gang, LI Liang, LI Xiaodong, XI Xiangdong. RESEARCH AND APPLICATION OF SHEAR RESISTANCE OF FRICTION CONNECTION WITH HIGH STRENGTH BOLTS[J]. INDUSTRIAL CONSTRUCTION, 2020, 50(11): 133-136. doi: 10.13204/j.gyjzG201909120001
HAN Tengfei, XU Gang, LI Liang, LI Xiaodong, XI Xiangdong. RESEARCH AND APPLICATION OF SHEAR RESISTANCE OF FRICTION CONNECTION WITH HIGH STRENGTH BOLTS[J]. INDUSTRIAL CONSTRUCTION, 2020, 50(11): 133-136. doi: 10.13204/j.gyjzG201909120001
Citation:
HAN Tengfei, XU Gang, LI Liang, LI Xiaodong, XI Xiangdong. RESEARCH AND APPLICATION OF SHEAR RESISTANCE OF FRICTION CONNECTION WITH HIGH STRENGTH BOLTS[J]. INDUSTRIAL CONSTRUCTION, 2020, 50(11): 133-136. doi: 10.13204/j.gyjzG201909120001
The non-linear finite element model of high-strength bolts friction type connection is established by finite element software ABAQUS, and the accuracy and applicability of the finite element model are verified by experiments. Finally, the force-displacement curve simplified model of high strength bolt friction connection in friction and sliding stages is established. Its significance lies in:1)Providing structural analysis with more accurate simplified treatment method of joints, improving analysis efficiency on the premise of ensuring accuracy; 2)Applying simplified model to stress analysis of bolts connecting brake plate and bent column of crane girder, clarifying the actual stress situation of bolts and effectively solving bolt loosening problem.
中华人民共和国住房和城乡建设部. 钢结构设计标准:GB 50017-2017[S].北京:中国建筑工业出版社,2018. a-摩擦阶段;b-滑移阶段。图12不同螺栓直径和预紧力对应的滑移阶段最大位移(10.9级M20螺栓、芯板厚16 mm、盖板厚8 mm) Fig.12 Maximum displacement in slipping stage corresponding to different bolt diameters and pre-tightening forces Grade 10.9 M20 bolt, The thickness of core plate is 16 mm,The thickness of cover plate is 8 mm注:Nu=nμP,n为摩擦面数量;μ为抗滑移系数;P为预紧力。图13高强螺栓摩擦型连接的抗剪简化模型Fig.13 Simplified shear model for friction-type connections with high strength bolts