| 双肢柱空腹桁架分离式外套结构加层方案分析 |
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| 引用本文： | 高剑平,李明.双肢柱空腹桁架分离式外套结构加层方案分析[J].华东交通大学学报,2008,25(4):6-10. |
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| 作者姓名： | 高剑平 李明 |
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| 作者单位： | 华东交通大学,土木建筑学院,江西,南昌,330013 |
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| 基金项目： | 江西省自然科学基金，江西省教育厅科研项目 |
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| 摘 要： | 针对普通分离式外套框架加层结构存在底层柔性、抗侧刚度突变和底层大跨度等问题，提出双肢柱空腹桁架外套加层结构形式．应用有限元程序SAP2000，对若干种双肢柱空腹桁架结构形式进行了反应谱分析和静力分析，分别考察了双肢柱腹杆形式和数量对抗侧刚度的影响，以及空腹桁架杆件布置方式和数量对抗侧刚度、弯距、剪力、跨中挠度等的影响．分析结果表明：斜腹杆系双肢柱空腹桁架结构可有效提高底层抗侧刚度，竖向抗侧刚度较均匀，而且各层弯矩峰值显著减少并趋于均匀，是房屋加层中值得考虑的一种方案．
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| 关 键 词： | 加层 外套结构 双肢柱 空腹桁架 抗侧刚度 |
A Comparative Study on the Separate Adding-storey Plans of Double-limb Column with Vierendeel Truss System |
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| GAO Jian-ping,LI Ming.A Comparative Study on the Separate Adding-storey Plans of Double-limb Column with Vierendeel Truss System[J].Journal of East China Jiaotong University,2008,25(4):6-10. |
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| Authors: | GAO Jian-ping LI Ming |
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| Institution: | GAO Jian-ping,LI Ming(School of Civil Engineering , Architecture,East China Jiaotong University,Nanchang 330013,China) |
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| Abstract: | The proposed double-limb column with vierendeel truss system is expected to overcome the drawbacks of ordinary separate jacket frame including softness of the first storey,abrupt change in lateral stiffness and large span of the first storey.Response spectrum analysis and static analysis have been carried out with the program SAP2000 to study the effect of web member form and its numbers on the lateral stiffness,and the effect of layout form of vierendeel truss rods and its numbers on the lateral stiffness,... |
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| Keywords: | adding-storey jacket structure double-limb column vierendeel truss lateral stiffness |
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