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冷弯薄壁型钢复合墙体基于弹簧连接单元模型分析合理性 预览 被引量:2

COMPUTATIONALLY EFFICIENT FASTENER-BASED SPRING ELEMENT MODELS OF SHEATHED COLD-FORMED STEEL FRAMED SHEAR WALL
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摘要 建立基于螺钉连接件弹簧单元的冷弯薄壁型钢复合墙体SAP2000分析模型,螺钉采用定向滞回准则的不相耦合的双弹簧模拟,覆面板采用弹性壳单元,龙骨构件采用三维框架单元,分析模型主要集中考虑龙骨和覆面板螺钉连接件非线性性能对于模拟复合墙体的合理性,并采用相关墙体滞回试验结果进行验证。研究结果表明,基于连接件性能的冷弯薄壁型钢复合墙体SAP2000分析模型能够用于冷弯薄壁型钢复合墙体抗震性能的精细化分析,为复合墙体抗震简化设计方法提供分析依据。 The computational model of sheathed cold-formed steel flamed shear walls is aevelopeobased on non-linear, radially-symmetric spring element for screw connection between sheathing board andcold-formed steel framing using SAP2000 program. The screw is assigned the two independent pivotmaterial spring element. The sheathing material is modeled as a separate rigid body. The cold-formedsteel frame is modeled by three dimension beam and column elements. The model approach focuses onreasonably non-linear spring element between cold-formed frame and sheathing material modeling cold-formed steel frame shear wall. The verification is conducted using the hysteretic test of shear wall. Theresearch results shows that the computational model of sheathed cold-formed steel framed shear wallsbased on non-linear, radially-symmetric spring element for screw connections using SAP2000 can beused for detail analysis for cold-formed steel shear wall and the analyses results can be as the baseon simplified seismic design method of shear wall.
作者 姚行友 郭彦利 康轶涛 谭政 YAO Xing-you, GUO Yan-li2, KANG Yi-tao2, TAN Zheng2 (l. School of Aerospace Engineering and Applied Mechanics, Tongii University, 200092, Shanghai, China; 2.Jiangxi Provincia Engineering Research Center of the Special Reinforcement and Safety Monitoring Technology in Hydraulic & Civil Engineering, Nanchang Institute of Technology, 330099, Nanchang, China)
出处 《建筑技术》 北大核心 2017年第5期556-559,共4页 Architecture Technology
基金 国家自然科学基金资助项目(51308277) 江西省科技厅自然科学基金项目(20151BAB206055) 2014年国家(江西省)大学生创新创业训练计划资助项目(201411319004) 2015年国家大学生创新创业训练计划资助项目(201511319007)
关键词 冷弯薄壁型钢 复合墙体 弹簧单元 滞回性能 cold-formed thin-walled steel shear wall spring element hysteretic behavior
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