| 施威德勒网壳结构的动力强度破坏 |
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| 引用本文： | 杨飏,支旭东,范峰,沈世钊.施威德勒网壳结构的动力强度破坏[J].东北大学学报(自然科学版),2007,28(1):125-128. |
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| 作者姓名： | 杨飏 支旭东 范峰 沈世钊 |
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| 作者单位： | 1. 东北大学,资源与土木工程学院,辽宁,沈阳,110004
2. 哈尔滨工业大学,土木工程学院,黑龙江,哈尔滨,150090 |
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| 摘 要： | 对40 m跨的施威德勒理想网壳结构和考虑初始缺陷的网壳结构进行了全过程动力时程分析,考察了此类型网壳结构的动力性能和破坏形式.对具有初始缺陷的网壳结构进行了参数影响分析,分别考察了地震作用、杆件截面和屋面荷载三种因素对结构动力性能的影响,研究了在不同条件下施威德勒网壳结构的动力失效机理和破坏模式.将研究结果与其他球面网壳结构进行了比较,验证了已提出的理论框架的合理性和实用性.
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| 关 键 词： | 施威德勒单层网壳 强震作用 失效机理 动力分析 强度破坏 |
| 文章编号： | 1005-3026（2007）01-0125-04 |
| 收稿时间： | 2006-02-10 |
| 修稿时间： | 2006-02-10 |
Dynamic Strength Failure of Schwedler Latticed Shells |
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| YANG Yang,ZHI Xu-dong,FAN Feng,SHEN Shi-zhao.Dynamic Strength Failure of Schwedler Latticed Shells[J].Journal of Northeastern University(Natural Science),2007,28(1):125-128. |
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| Authors: | YANG Yang ZHI Xu-dong FAN Feng SHEN Shi-zhao |
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| Institution: | (1) School of Resources and Civil Engineering, Northeastern University, Shenyang 110004, China; (2) School of Civil Engineering, Harbin Institute of Technology, Harbin 150090, China |
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| Abstract: | Failure mechanism of the single-layer Schwedler latticed shells under severe earthquake actions was studied. The imperfect model of a 40 m-span Schwedler latticed shells was developed through a structural analysis of dynamic whole-course. Dynamic performance and failure mode of the shell were examined. The parametrical effects of the shell with initial imperfection were discussed to analyze how the three parameters affect the shell's dynamic performance, i.e. earthquake, section of members and roof loading. The dynamic failure mechanism and mode of such a shell structure were studied under different conditions, and the results were compared to other spherical latticed shells. The effectiveness of the suggested theoretical procedure was verified. |
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| Keywords: | Schwedler single layer latticed shell severe earthquake action failure mechanism dynamic analysis strength failure |
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