高层框架-斜交网格结构协同受力性能研究

史庆轩; 张锋

doi:10.6052/j.issn.1000-4750.2018.01.0078

高层框架-斜交网格结构协同受力性能研究

史庆轩^1,2,
张锋^2,3,

1.
西安建筑科技大学西部绿色建筑国家重点实验室, 陕西, 西安 710055;
2.
西安建筑科技大学土木工程学院, 陕西, 西安 710055;
3.
陕西省建筑设计研究院(集团)有限公司, 陕西, 西安 710018

基金项目: 国家自然科学基金面上项目（51878540，51478382）；国家重点研发计划课题项目（2017YFC0703406）

详细信息

作者简介:
史庆轩(1963-),男,山东-城县人,教授,博士,博导,主要从事工程结构及抗震研究(E-mail:shiqx@xauat.edu.cn).

通讯作者:
张锋(1982-),男,陕西大荔县人,国家一级结构注册工程师,博士生,主要从事高层抗震设计研究(E-mail:306854208@qq.com).

中图分类号: TU311;O342
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出版历程
- 收稿日期: 2018-01-26
- 修回日期: 2019-11-21
- 刊出日期: 2020-05-26

STUDY ON COOPERATIVE WORK PERFORMANCE OF HIGH-RISE FRAME-DIAGRID STRUCTURES

SHI Qing-xuan^1,2,
ZHANG Feng^2,3,

1.
State Key Laboratory of Green Building in Western China, Xi'an University of Architecture and Technology, Xi'an, Shaanxi 710055, China;
2.
School of Civil Engineering, Xi'an University of Architecture and Technology, Xi'an, Shaanxi 710055, China;
3.
Shaanxi Architectural Design and Research Institute(Group) Co. Ltd., Xi'an, Shaanxi 710018, China

摘要

摘要: 高层框架-斜交网格结构是由高层斜交网格结构和框架结构组成的双抗侧力体系。采用理论推导和数值模拟的方法研究了该体系处于弹性和弹塑性状态下楼层水平剪力分配规律。针对高层斜交网格结构和框架结构协同工作变形特点，提出结构体系的弹性平面简化分析模型，进一步推导出结构侧向变形和剪力计算公式，并研究了结构处于弹性阶段时的剪力分配规律；采用非线性静力推覆法对结构体系在弹塑性阶段的变形特性、刚度退化和剪力分配规律进行了研究。结果表明：高层斜交网格结构和框架结构的协同工作性能良好，结构在弹性阶段，结构刚度的特征值及荷载分布对其剪力分配影响较大；结构进入塑性阶段，斜柱刚度退化速率较快，楼层剪力存在重分配现象。
- 斜交网格结构 /
- 双抗侧力体系 /
- 刚度退化 /
- 弹性阶段 /
- 塑性阶段 /
- 水平剪力分布
Abstract: The high-rise frame-diagrid structure is a new dual system. It is composed of a high-rise diagrid structure and a frame structure. The horizontal shear-force distributions under elastic and plastic states are studied by theoretical derivation and numerical simulation. According to the characteristics of cooperative deformation of the diagrid structure and the frame structure, a simplified 2D elastic analysis model is proposed. Formulas for calculating the lateral deformation and the shear force of structures are derived. The shear distribution characteristics of the structure in the elastic state are also studied. The non-linear static Pushover method is used to calculate the structural system. The deformation characteristics, stiffness degradation and shear-force distribution in plastic stage are studied. The results show that the high-rise diagrid structure and the frame structure have good cooperative behaviors. In the elastic state, the eigenvalues of structural stiffness and the load distribution have a great influence on the shear-force distribution of the structure. In the plastic state, the stiffness of diagonal columns will degrade and the shear force will be redistributed.
- diagrid structure /
- dual system /
- stiffness degradation /
- elastic state /
- plastic state /
- horizontal shear distribution

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参考文献(14)

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施引文献(9)

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