抛物线型单层柱面网壳的非线性稳定性
对抛物线型单层柱面网壳的静力稳定性能进行了研究.比较了抛物线型单层柱面网壳与圆柱面单层柱面网壳和倒悬链线单层柱面网壳的静力稳定性能.对抛物线型单层柱面网壳进行参数分析,并对抛物线型单层柱面网壳进行结构优化.研究表明：与圆柱面网壳相比,抛物线型单层柱面网壳的极限荷载有大幅度增大;长跨比、矢跨比对网壳的极限荷载影响显著;初始几何缺陷对网壳的极限荷载有较大影响;网壳的斜杆相交角在50°左右,网壳的静力稳定性能最好;按等比数列布置拱向网格间距,比值α的取值在0.85到0.95之间时,网壳的静力稳定性能最好....
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| Published in | 东北大学学报（自然科学版） Vol. 37; no. 7; pp. 1050 - 1055 |
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| Main Author | |
| Format | Journal Article |
| Language | Chinese |
| Published |
湖南大学土木工程学院,湖南长沙,410082
2016
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| Subjects | |
| Online Access | Get full text |
| ISSN | 1005-3026 |
| DOI | 10.3969/j.issn.1005-3026.2016.07.029 |
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| Abstract | 对抛物线型单层柱面网壳的静力稳定性能进行了研究.比较了抛物线型单层柱面网壳与圆柱面单层柱面网壳和倒悬链线单层柱面网壳的静力稳定性能.对抛物线型单层柱面网壳进行参数分析,并对抛物线型单层柱面网壳进行结构优化.研究表明：与圆柱面网壳相比,抛物线型单层柱面网壳的极限荷载有大幅度增大;长跨比、矢跨比对网壳的极限荷载影响显著;初始几何缺陷对网壳的极限荷载有较大影响;网壳的斜杆相交角在50°左右,网壳的静力稳定性能最好;按等比数列布置拱向网格间距,比值α的取值在0.85到0.95之间时,网壳的静力稳定性能最好. |
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| AbstractList | TU393.3; 对抛物线型单层柱面网壳的静力稳定性能进行了研究．比较了抛物线型单层柱面网壳与圆柱面单层柱面网壳和倒悬链线单层柱面网壳的静力稳定性能．对抛物线型单层柱面网壳进行参数分析，并对抛物线型单层柱面网壳进行结构优化．研究表明：与圆柱面网壳相比，抛物线型单层柱面网壳的极限荷载有大幅度增大；长跨比、矢跨比对网壳的极限荷载影响显著；初始几何缺陷对网壳的极限荷载有较大影响；网壳的斜杆相交角在50°左右，网壳的静力稳定性能最好；按等比数列布置拱向网格间距，比值α的取值在0.85到0.95之间时，网壳的静力稳定性能最好． 对抛物线型单层柱面网壳的静力稳定性能进行了研究.比较了抛物线型单层柱面网壳与圆柱面单层柱面网壳和倒悬链线单层柱面网壳的静力稳定性能.对抛物线型单层柱面网壳进行参数分析,并对抛物线型单层柱面网壳进行结构优化.研究表明：与圆柱面网壳相比,抛物线型单层柱面网壳的极限荷载有大幅度增大;长跨比、矢跨比对网壳的极限荷载影响显著;初始几何缺陷对网壳的极限荷载有较大影响;网壳的斜杆相交角在50°左右,网壳的静力稳定性能最好;按等比数列布置拱向网格间距,比值α的取值在0.85到0.95之间时,网壳的静力稳定性能最好. |
| Abstract_FL | Aiming at the static stability of the parabolic single-layer cylindrical reticulated shell, the following research is conducted:the static stability of the parabolic single-layer cylindrical reticulated shell is compared with that of the single-layer cylindrical reticulated shell and the inverted catenary single-layer cylindrical reticulated shell. A large scale parameter analysis is carried out on the parabolic cylindrical reticulated shell. An optimized design for the parabolic single-layer cylindrical reticulated shell is conducted. Research shows that compared with the cylindrical reticulated shell,the ultimate load of the parabolic single-layer reticulated cylindrical shell is greatly enhanced. Rise-span ratio and length-span ratio influence the ultimate load of the shell significantly. The shell is proved to be sensitive to initial geometric imperfection. There exists an optimal oblique rod intersection angle of about 50 ° under which the static stability is the best. When the grid space layout is arranged according to the geometric series and the value of the ratio α is between 0. 85 and 0. 95,the static stability of the shell is the best. |
| Author | 贺拥军 周元亮 |
| AuthorAffiliation | 湖南大学土木工程学院,湖南长沙410082 |
| AuthorAffiliation_xml | – name: 湖南大学土木工程学院,湖南长沙,410082 |
| Author_FL | ZHOU Yuan-liang HE Yong-jun |
| Author_FL_xml | – sequence: 1 fullname: HE Yong-jun – sequence: 2 fullname: ZHOU Yuan-liang |
| Author_xml | – sequence: 1 fullname: 贺拥军 周元亮 |
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| ClassificationCodes | TU393.3 |
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| Copyright | Copyright © Wanfang Data Co. Ltd. All Rights Reserved. |
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| DocumentTitleAlternate | Nonlinear Buckling of Parabolic Single-Layer Cylindrical Reticulated Shells |
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| Keywords | parabolic 单层柱面网壳 圆柱面 极限荷载 cylindrical single-layer reticulated cylindrical shell inverted catenary 倒悬链线 抛物线型 ultimate load |
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| Notes | 21-1344/T Aiming at the static stability of the parabolic single-layer cylindrical reticulated shell,the following research is conducted： the static stability of the parabolic single-layer cylindricalreticulated shell is compared with that of the single-layer cylindrical reticulated shell and theinverted catenary single-layer cylindrical reticulated shell. A large scale parameter analysis iscarried out on the parabolic cylindrical reticulated shell. A n optimized design for the parabolicsingle-layer cylindrical reticulated shell is conducted. Research shows that compared with thecylindrical reticulated shell, the ultimate load of the parabolic single-layer reticulated cylindricalshell is greatly enhanced. Rise-span ratio and length-span ratio influence the ultimate load of theshell significantly. The shell is proved to be sensitive to initial geometric imperfection. Thereexists an optimal oblique rod intersection angle of about 5 0 .under which the static stability is thebest. W h e n the grid space layout is |
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| PublicationTitle | 东北大学学报（自然科学版） |
| PublicationTitleAlternate | Journal of Northeastern University（Natural Science） |
| PublicationYear | 2016 |
| Publisher | 湖南大学土木工程学院,湖南长沙,410082 |
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| SubjectTerms | 倒悬链线 单层柱面网壳 圆柱面 抛物线型 极限荷载 |
| Title | 抛物线型单层柱面网壳的非线性稳定性 |
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