| 张弦桁架尺寸及预应力优化设计 |
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| 引用本文： | 王雪芹,崔松茂. 张弦桁架尺寸及预应力优化设计[J]. 烟台大学学报(自然科学与工程版), 2011, 24(1) |
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| 作者姓名： | 王雪芹 崔松茂 |
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| 作者单位： | 1. 烟台职业学院建筑工程系,山东,烟台,264000
2. 烟台打捞局百通建筑公司,山东,烟台,264000 |
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| 基金项目： | 山东省教育厅科技计划资助项目 |
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| 摘 要： | 就设计变量为预应力和截面尺寸的张弦桁架优化设计问题,考虑结构在预应力态和荷载态的性态约束条件,建立了使结构重量最轻的优化数学模型.在求解时,预应力的取值综合考虑了使结构重量最轻和满足结构位移约束的起拱要求.由于优化模型应力约束条件中考虑了钢结构规范规定的压杆稳定问题,使优化结果更接近于实际工程.算例表明算法是有效的.
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| 关 键 词： | 张弦桁架 预应力 稳定性 截面尺寸优化 |
Optimal Design of Section Size and Pre-stress of Truss String Structure |
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| WANG Xue-qin,CUI Song-mao. Optimal Design of Section Size and Pre-stress of Truss String Structure[J]. Journal of Yantai University(Natural Science and Engineering edirion), 2011, 24(1) |
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| Authors: | WANG Xue-qin CUI Song-mao |
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| Affiliation: | WANG Xue-qin1,CUI Song-mao2(1.Construction Department,Yantai Vocational College,Yantai 264000,China,2.Baitong Construction Company,Yantai Salvage Bureau,China) |
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| Abstract: | To study the optimal design of truss string structure in terms of two variables of section size and pre-stress,we establish an optimized mathematical model with the minimum structure weight by considering the constraint conditions of structure under the pre-stressed and loaded situations.To study the issue,the determination of prestressed value will meet the requirement of minimum weight and the arch camber design under condition of displacement constraints.Meanwhile,local stability of pressure-poles specif... |
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| Keywords: | truss string structure pre-stress local stability section size optimization |
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