地震作用下加固砖砌体房屋力学特性数值模拟
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摘要
采用碳纤维复合材料加固技术在砌体结构中广泛应用,通过加固之后,砌体结构房屋抗震性能有较大改善。对碳纤维复合材料加固砌体结构采用ANSYS有限元软件,建立2个不同的碳纤维加固模型。通过2个不同加固方案的分析,对加固模型的极限位移分析对比,研究了碳纤维加固砌体房屋的抗震性能,并且得到粘贴碳纤维布加固砖砌体房屋对增强其抗震性能的合理加固方法。计算分析表明,碳纤维加固可以控制砌体裂缝的发展,裂缝的开展更为均匀,有效的提高房屋的变形能力和抗震承载能力。
Due to the attention paid to the carbon fiber composite received from strengthening masonry constructions with it and the superiority of the application of the finite-element software ANSYS to the mechanical property numerical modeling of construction,this paper discusses adopting ANSYS finite-element software to establish two different programs of carbon fiber strengthening model.Through the comparison of ultimate displacement of each model,the paper analyzes the influence of strengthening with carbon fiber on the mechanical property of the houses,and reaches a conclusion of how to paste up the carbon fiber cloth is the best for the anti-seismic effect of the brick masonry houses.The final comparison shows that strengthening the house with carbon fiber can control the development of crack and distribute the cracks more evenly,to improve the houses'anti-falling on side function and carrying capacity effectively.
Due to the attention paid to the carbon fiber composite received from strengthening masonry constructions with it and the superiority of the application of the finite-element software ANSYS to the mechanical property numerical modeling of construction,this paper discusses adopting ANSYS finite-element software to establish two different programs of carbon fiber strengthening model.Through the comparison of ultimate displacement of each model,the paper analyzes the influence of strengthening with carbon fiber on the mechanical property of the houses,and reaches a conclusion of how to paste up the carbon fiber cloth is the best for the anti-seismic effect of the brick masonry houses.The final comparison shows that strengthening the house with carbon fiber can control the development of crack and distribute the cracks more evenly,to improve the houses'anti-falling on side function and carrying capacity effectively.
引文
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[3]陈立春.体外预应力纤维增强塑料片材在加固桥梁结构中的应用[J].中国对外贸易,2011(22):14-20.
[4]陈瑶艳,王柏生,张彬彬.普通玻璃纤维布加固多孔砖砌体的抗震性能试验研究[J].工业建筑,2004(7):55-59.
[5]吴体,张翼,侯汝欣.关于砌体结构设计规范中的几个问题[C].2007年全国砌体结构与墙体材料理论及其工程应用会议,2007.
[6]姚元.碳纤维加固严重破坏砌体墙的试验研究[D].重庆:重庆大学土木工程学院,2010.
[2]王琛,李静.我国砌体结构的发展现状与方向[J].河南建材,2009(4):76-82.
[3]陈立春.体外预应力纤维增强塑料片材在加固桥梁结构中的应用[J].中国对外贸易,2011(22):14-20.
[4]陈瑶艳,王柏生,张彬彬.普通玻璃纤维布加固多孔砖砌体的抗震性能试验研究[J].工业建筑,2004(7):55-59.
[5]吴体,张翼,侯汝欣.关于砌体结构设计规范中的几个问题[C].2007年全国砌体结构与墙体材料理论及其工程应用会议,2007.
[6]姚元.碳纤维加固严重破坏砌体墙的试验研究[D].重庆:重庆大学土木工程学院,2010.
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