| 空间网架结构的恢复力模型 |
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| 引用本文： | 孙玉萍.空间网架结构的恢复力模型[J].兰州理工大学学报,1998(4). |
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| 作者姓名： | 孙玉萍 |
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| 作者单位： | 甘肃工业大学建筑工程系 |
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| 摘 要： | 研究了空间网架结构在地震力作用下弹塑性工作状态及其特点．采用时程分析法，选用Ｅｌｃｅｎｔｒｏ地震波，并采用作者等人提出的恢复力模型多折线模型，导出了单元刚度随时间变化后的弹塑性刚度值．
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| 关 键 词： | 网架结构，抗震，恢复力模型，多折线模型，弹塑性刚度，残余应变 |
Restoring force of spatial trusses the multiple broken line model |
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| Sun Yuping.Restoring force of spatial trusses the multiple broken line model[J].Journal of Lanzhou University of Technology,1998(4). |
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| Authors: | Sun Yuping |
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| Abstract: | The characteristics of elasto plastic condition of spatial trusses under earthquake is studied and the multiple broken line model is first presented, which is a new restoring force method. Combined with experimental result, the model for the elasto plastic analysis of spatial trusses is built, which is composed of eight broken lines. By the model, the parameters for residual strain and elasto plastic stiffness value of unit stiffness decreasing with time are derived. |
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| Keywords: | spatial trusses earthquake proof restoring force model multiple broken line model elasto plastic stiffness residual strain |
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