| 单层柱面网壳弹塑性地震反应特征 |
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| 引用本文： | 薛素铎,曹资,王健宁.单层柱面网壳弹塑性地震反应特征[J].地震工程与工程振动,2002,22(1):56-60. |
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| 作者姓名： | 薛素铎 曹资 王健宁 |
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| 作者单位： | 北京工业大学建筑工程学院,北京,100022 |
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| 基金项目： | 北京市自然科学基金项目（8982004），国家自然科学基金重大项目子课题（59895410） |
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| 摘 要： | 本文对网壳结构的弹塑性抗震性能进行了探讨。根据结构弹性有限元理论，结合网壳结构受力特点，推导出网壳结构单元的弹塑性矩阵表达式。然后对单层柱面网壳结构的弹塑性地震反应进行了具体分析，给出了节点位移和杆件应力变化规律，并讨论了矢跨比变化对网壳弹塑性性能的影响，从而揭示出这类网壳的弹塑性地震反应特点。
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| 关 键 词： | 网壳 弹塑性性能 地震反应 有限元理论 抗震性能 |
| 文章编号： | 1000-1301(2002)01-0056-05 |
Elastic-plastic seismic response of single layer cylindrical lattice shells |
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| XUE Su-duo. CAO Zi,WANG Jian-ning.Elastic-plastic seismic response of single layer cylindrical lattice shells[J].Earthquake Engineering and Engineering Vibration,2002,22(1):56-60. |
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| Authors: | XUE Su-duo CAO Zi WANG Jian-ning |
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| Abstract: | This paper presents a theoretical study on elastic-plastic seismic performance of lattice shells. Using elastic-plastic finite element theory and considering the internal force behavior of structural element, the elastic-plastic stiffness matrix for lattice shell is first derived. Then, the seismic response analysis of a single-layer cylindrical lattice shell is carried out. A detailed analysis is performed to investigate the elastic-plastic performance of the structure under strong ground motions. The elastic-plastic behaviors for nodal displacements and member stresses of the structure are discussed, and the influence of depth-span ratio is also investigated. Finally, the characteristics for elastic-plastic seismic response of lattice shells are obtained. |
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| Keywords: | lattice shell elastic-plastic performance seismic response |
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