| 考虑钢框架节点局部断裂的滞回模型 |
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| 引用本文： | 刘永明,陈以一,陈扬骥.考虑钢框架节点局部断裂的滞回模型[J].同济大学学报(自然科学版),2003,31(5):525-529. |
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| 作者姓名： | 刘永明 陈以一 陈扬骥 |
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| 作者单位： | 同济大学,建筑工程系,上海,200092 |
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| 基金项目： | 高等学校博士学科点专项科研基金资助项目 ( 5 60 .3 5 0 0 ) |
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| 摘 要： | 在杆端多弹簧弹塑性模型中引入了断裂机制 ,采用根据J积分撕裂模量法建立的判别裂纹失稳的失效评定图设定模型参数 .通过和有关试验结果的比较 ,验证了建立的模型及算法可以充分反映局部断裂后节点滞回性能的主要特点 .根据若干算例结果 ,归纳出适用于整体结构分析的考虑节点局部断裂的非线性弹簧模型
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| 关 键 词： | 钢框架 节点 断裂 滞回特性 数值模拟 |
| 文章编号： | 0253-374X(2003)05-0525-05 |
| 修稿时间： | 2002年5月16日 |
Hysterical Model of Steel Frame Connection Considering Partial Fracture |
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| LIU Yong ming,CHEN Yi yi,CHEN Yang ji.Hysterical Model of Steel Frame Connection Considering Partial Fracture[J].Journal of Tongji University(Natural Science),2003,31(5):525-529. |
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| Authors: | LIU Yong ming CHEN Yi yi CHEN Yang ji |
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| Abstract: | The fracture mechanism is introduced into an elastic plastic model,which is composed of several non linear springs at the end of the members.The failure assessment diagram of fracture based on the J integral theory is adopted for the calibration of the model parameters.By comparison with the experimental results,it is shown that the established model and the computation procedure can fully reflect the main characters of the hysterical behavior after partial fracture.A simplified non linear model for connection fracture,which can be employed for whole structural analysis,is then proposed based on numerical results obtained. |
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| Keywords: | steel frame connection fracture hysteric behavior numerical simulation |
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