考虑剪切变形的轴心受压GFRP圆管临界荷载
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冯炳,陈勇,崔旭,沈国辉,徐海巍
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Critical loads of axially compressed GFRP round tubes considering shear deformations
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Bing FENG,Yong CHEN,Xu CUI,Guo-hui SHEN,Hai-wei XU
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| 表 3 稳定折减系数的理论和试验结果 |
| Tab.3 Theoretical and experimental results of buckling reduction factor |
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| 试件 | l0 /mm | Pcr,E /kN | Pcr,Eng /kN | Pu /kN | λn | 理论值 | | 试验值 | 误差/% | | Pcr /kN | χ | Pcr /kN | χ | | Z-1 | 1195.5 | 473.8 | 347.7 | 290.0 | 0.913 | 208.1 | 0.717 | | 191.0 | 0.659 | 8.9 | | Z-2 | 1843.2 | 199.3 | 173.0 | 290.0 | 1.30 | 135.8 | 0.468 | 140.0 | 0.483 | −3.0 | | Z-3 | 2491.0 | 109.1 | 100.7 | 290.0 | 1.70 | 86.6 | 0.299 | 95.0 | 0.328 | −8.8 | | Z-4 | 3138.7 | 68.7 | 65.3 | 290.0 | 2.11 | 58.5 | 0.202 | 61.0 | 0.210 | −4.2 |
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