| 完海鹰,金煜明,陈安英.CFRP 不同布置构造措施下加固方钢管柱有限元分析[J].安徽建筑大学学报,2021,29(4):6-11 |
| CFRP 不同布置构造措施下加固方钢管柱有限元分析 |
| Finite Element Analysis of Reinforced Square Steel Tubular Columns by Construction Measures ofDifferent CFRP Arrangements |
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| DOI： |
| 中文关键词: 结构工程 CFRP 方钢管柱 构造措施 延性 ABAQUS 有限元 |
| 英文关键词: structural engineering CFRP square steel tubular column structural measures ductility ABAQUS finite element |
| 基金项目:安徽省高校协同创新项目（GXXT-2019-005） |
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| 中文摘要: |
| CFRP 用来加固钢结构具有施工方便、安全等优点，为了明确 CFRP 布布置间距对加固效果的影响，有必要开展参数化分析研究。通过有限元模拟试验的方式来验证建模方式的准确性，在此基础上进一步研究构造措施对方钢管柱的影响。模拟结果表明，间隔环贴 CFRP 布对试件的影响主要在延性方面，0~20 mm 的距离对其有利，超过 20 mm 将产生不利影响；40 mm、60 mm 间隔距离会严重削弱 CFRP 布的作用，特别是60 mm 间隔距离，其作用与 375 mm 宽 CFRP 布的效果几乎一致，造成材料的浪费。所建立的有限元模型可以很好的模拟试验加载过程，作为一种有效的建模方式被采用。 |
| 英文摘要: |
| CFRP used to strengthen steel structure has the advantages of convenient construction and safety. In order to clarify theinfluence of CFRP layout spacing on reinforcement effect，it is necessary to carry out parametric analysis and research.The accuracy of the modeling method is verified by the way of finite element simulating test.On this basis，the influence of structural measures on the square steel tubular column is further studied. The simulant results show that the influence of circular CFRP cloth on the ductility ofthe specimen is mainly in the aspect of the distance of 0-20 mm，which is beneficial to the specimen，and more than 20 mm will have adverse effect. 40mm and 60 mm spacing will seriously weaken the effect of CFRP cloth，especially 60 mm spacing，which is close to the effect of 375 mm wide CFRP cloth，causing material waste. The established finite element model can simulate the loading process of the test very well， and is adopted as an effective modeling method. |
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