| 超大跨度自平衡预应力索杆球面网壳结构的设计与分析 |
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| 引用本文： | 刘晚成,周华斌,林琳,郭晓江.超大跨度自平衡预应力索杆球面网壳结构的设计与分析[J].沈阳建筑工程学院学报(自然科学版),2007,23(4):551-555. |
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| 作者姓名： | 刘晚成 周华斌 林琳 郭晓江 |
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| 作者单位： | 东北林业大学土木工程学院 黑龙江哈尔滨150040(刘晚成，林琳，郭晓江)，沈阳市环保监理有限公司 辽宁沈阳110003(周华斌) |
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| 摘 要： | 目的为实际工程应用设计具有空间刚度的自平衡预应力结构单元.方法结合已有的大跨预应力网壳研究结论和自平衡结构体系的特点设计结构的网格尺寸、高度和厚度,利用ANSYS大型有限元分析软件进行结构计算和静力分析.结果经过合理的构件截面设计,在外载作用下,结构最大的拉索应力为1382.1 MPa,最大的压杆应力为-254.58 MPa,最大竖向位移为-1.66 m;结构内力和变形都在允许的范围内,且无杆件失稳现象.结论单元拼装式自平衡预应力结构在超大跨度空间结构应用是可行的,设计应综合考虑网壳厚度、预应力值、索杆截面变化引起的索杆应力变化.
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| 关 键 词： | 自平衡 球面网壳 基本单元 静力分析 |
| 文章编号： | 1671-2021（2007）04-0551-05 |
| 修稿时间： | 2006-12-12 |
Design and analysis on super spherical surface latticed shell assembled with self-balanced pre-stressed cable-strut elements |
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| LIU Wancheng,ZHOU Huabin,LIN lin,GUO xiaojiang.Design and analysis on super spherical surface latticed shell assembled with self-balanced pre-stressed cable-strut elements[J].Journal of Shenyang Archit Civil Eng Univ: Nat Sci,2007,23(4):551-555. |
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| Authors: | LIU Wancheng ZHOU Huabin LIN lin GUO xiaojiang |
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| Affiliation: | 1. College of Civil Engineering, Northeast Forestry University, Harbin 150040, China; 2. Shenyang Environmental Protection Construction Supervision Co. Ltd, Shenyang 110003, China |
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| Abstract: | The 300-meter-span spherical surface latticed shell is set up by self-balanced pre-stressed cable-strut elements in kweitt grid mode.The grid size,structural height and thickness are designed based on the existent research conclusion and the peculiarities of the self-balanced structure.The large finite element software ANSYS is used to take structural calculation and static analysis,and the designs of the basic element and joints are introduced.The analysis shows that the structural stress and deformation are in allowable range by proper designs,and lots of steels are saved.The feasibility of the application in super spatial structure assembled with self-balanced pre-stressed cable-strut elements is demonstrated. |
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| Keywords: | self-balanced spherical surface latticed shell basic element static analysis |
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