大跨度空间结构箱形钢柱的恢复力模型

李海锋; 罗永峰; 李德章; 丁大益

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DOI:10.15961/j.jsuese.2013.03.029

工程科学与技术:2013,45(3):40-49

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大跨度空间结构箱形钢柱的恢复力模型

李海锋¹, 罗永峰², 李德章³, 丁大益⁴

(1.华侨大学土木工程学院;2.同济大学建筑工程系;3.合肥市重点工程建设管理局;4.五洲工程设计研究院)

Restoring Force Model of Steel Box Column in Large Span Spatial Structures

Li Haifeng¹, Luo Yuanfeng², Li Dezhang³, Ding Dayi⁴

(1.College of Civil Eng.,Huaqiao Univ.;2.Dept. of Building Eng.,Tongji Univ.;3.Hefei Administrative Bureau of Key Eng. Project;4.Wuzhou Eng. Design and Research Inst.)

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本文已被：浏览 1771次下载 48次
投稿时间：2012-11-29 修订日期：2013-03-24

中文摘要: 基于16根箱形钢柱的拟静力试验及85个箱形构件的数值分析，研究反复水平荷载作用下偏心常轴压箱形钢柱的恢复力特性。通过对试验和有限元结果进行回归分析，得到骨架曲线关键点的求解公式。根据试验结果确定了反复荷载作用下偏心常轴压箱形钢柱的刚度退化和强度退化规则。在此基础上，提出大跨度空间结构箱形钢柱的恢复力模型，并与试验结果进行比较，得出恢复力模型的求解精度较高，尤其能准确反映构件的刚度退化和强度退化特征，可用于大跨度空间结构的弹塑性反应分析。

中文关键词: 箱形钢柱拟静力试验有限元模拟骨架曲线滞回规则恢复力模型

Abstract:Based on pseudo-static experimental results of 16 steel box columns and numerical results of 85 calculated members,the hysteretic behaviors of eccentrically constant-compressed steel box columns under cyclic lateral loading were investigated.By regression analysis on experimental and numerical results,the formulas for key points in skeleton curve were obtained.According to the experimental results,the degeneration rules of strength and stiffness of eccentrically constant-compressed columns under cyclic lateral loading were suggested.The restoring force model of steel box columns in large span spatial structures was proposed.Finally,the comparisons between results from the restoring force model and experiments were conducted.It was found that the restoring force model shows high solution precision,especially in the degeneration property of strength and stiffness of eccentrically constant-compressed columns under cyclic lateral loading. The restoring force model could be applied to the elastic-plastic analysis of large span spatial structures.

keywords: steel box column pseudo-static experiment finite element simulation skeleton curve hysteretic rules restoring force model

文章编号：201200955 中图分类号： 文献标志码：

基金项目:安徽省重点建设工程基金资助项目（20100527）;华侨大学科研基金资助项目（12BS209）

作者	单位
李海锋	华侨大学土木工程学院
罗永峰	同济大学建筑工程系
李德章	合肥市重点工程建设管理局
丁大益	五洲工程设计研究院

Author Name	Affiliation
Li Haifeng	College of Civil Eng.,Huaqiao Univ.
Luo Yuanfeng	Dept. of Building Eng.,Tongji Univ.
Li Dezhang	Hefei Administrative Bureau of Key Eng. Project
Ding Dayi	Wuzhou Eng. Design and Research Inst.

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引用文本：
李海锋,罗永峰,李德章,丁大益.大跨度空间结构箱形钢柱的恢复力模型[J].工程科学与技术,2013,45(3):40-49.
Li Haifeng,Luo Yuanfeng,Li Dezhang,Ding Dayi.Restoring Force Model of Steel Box Column in Large Span Spatial Structures[J].Advanced Engineering Sciences,2013,45(3):40-49.