| 钢-混组合截面外包薄钢组合管梁抗弯性能研究 |
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| 引用本文： | 卢召红,刘薇,刘海水. 钢-混组合截面外包薄钢组合管梁抗弯性能研究[J]. 河北工程大学学报(自然科学版), 2019, 36(2): 109-112 |
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| 作者姓名： | 卢召红 刘薇 刘海水 |
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| 作者单位： | 东北石油大学土木建筑工程学院,黑龙江 大庆 163318;东北石油大学黑龙江省防灾减灾工程与防护工程重点实验室,黑龙江 大庆 163318;东北石油大学土木建筑工程学院,黑龙江 大庆,163318;东北石油大学黑龙江省防灾减灾工程与防护工程重点实验室,黑龙江 大庆,163318 |
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| 基金项目： | 国家自然科学基金资助项目(51578120)；国家自然科学青年基金资助项目(11402051) |
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| 摘 要： | 为了对不同夹层混凝土强度的钢-混组合截面外包薄钢组合管梁抗弯性能进行分析,通过试验和有限元软件模拟相结合的方法,选用外层为薄壁不锈钢管,内层为钢管,双壁管中间分别喷注混凝土强度等级为C20、C40、C60的三种试件,采用分级加载方式对试件进行加载,试验结果与有限元软件模拟的结果相吻合。研究结果表明:随着混凝土强度的提高,试件的抗弯承载力提高、延性增大,能发生较大的塑性变形以吸收能量。
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| 关 键 词： | 钢-混组合截面外包薄钢 组合管梁 抗弯性能 |
| 收稿时间： | 2019-03-05 |
Research on bending resistance of thin-steel composite pipe girder with steel-mixed composite section |
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| LU Zhaohong,LIU Wei and LIU Haishui. Research on bending resistance of thin-steel composite pipe girder with steel-mixed composite section[J]. Journal of Hebei University of Engineering(Natural Science Edition), 2019, 36(2): 109-112 |
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| Authors: | LU Zhaohong LIU Wei LIU Haishui |
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| Affiliation: | Northeast Petroleum University, Daqing 163318, China;Key Laboratory of Disaster Prevention and Reduction Engineering and Protection Engineering of Heilongjiang Province, Daqing 163318, China,Northeast Petroleum University, Daqing 163318, China and Key Laboratory of Disaster Prevention and Reduction Engineering and Protection Engineering of Heilongjiang Province, Daqing 163318, China |
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| Abstract: | In this paper, the combination of experimental and finite element software simulation is used to analyze the bending resistance of steel-concrete composite cross-section thin steel composite pipe beams with different interlayer concrete strength. The outer layer is made of thin-walled stainless steel pipe, the inner layer is steel pipe, and the three test pieces of concrete strength grades C20, C40 and C60 are respectively sprayed in the middle of the double-walled pipe, and the test pieces are loaded by the grading loading method, and the test results are limited. The results of the meta-software simulation are consistent. The results show that with the increase of concrete strength, the flexural capacity of the specimen and the ductility increase, and large plastic deformation can occur to absorb energy. The test results obtained can provide a basis for future research. |
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| Keywords: | the steel-mixed composite section covered with thin steel combined pipe girder bending resistance |
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