竖向杆系构件地震损伤的模糊评估方法
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摘要
由于构件地震损伤是具有模糊性的,且会受到多方面因素的影响,故在模糊数学基础上,建立了竖向杆系构件地震损伤评判模型。同时对构件地震损伤评判模型中的隶属度函数确定、评判因素权重值计算及评判模型运用等核心问题,进行了深入的研究与探讨。为方便工程应用,提出了构件地震损伤程度指数的计算公式。文末算例表明,所建议的构件地震损伤模糊综合评判模型,计算简便,结果有效可靠。
To some extent seismic damage to structure members is fuzzy and affected by multi-factor,so a comprehensive evaluation model for damage to vertical frame members is proposed on the basis of fuzzy mathematics.Some researches are carried out explicitly on the key points,such as the determination of membership degree functions, the calculation of judging factor weight in judging models and the application of them.For the convenience in engineering practice,a calculating formula is also derived to define the index of seismic damage to members.At last, analytical examples show that the proposed evaluation model is of high accuracy and efficiency.
To some extent seismic damage to structure members is fuzzy and affected by multi-factor,so a comprehensive evaluation model for damage to vertical frame members is proposed on the basis of fuzzy mathematics.Some researches are carried out explicitly on the key points,such as the determination of membership degree functions, the calculation of judging factor weight in judging models and the application of them.For the convenience in engineering practice,a calculating formula is also derived to define the index of seismic damage to members.At last, analytical examples show that the proposed evaluation model is of high accuracy and efficiency.
引文
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[17]Saatcioglu M,Baingo D.Circular high-strength concrete columns under simulated seismic loading[J].Journal of Structural Engineering,1999,125(3):272-280.
[2]Kono S,Bechtoula H,Sakashita M.Damage assessment of reinforced concrete columns under high axial loading[J].Special Publication,ACI,2006,237:165-176.
[3]蒋欢军,吕西林.钢筋混凝土柱对应于各地震损伤状态的侧向变形计算[J].地震工程与工程振动,2008,28(2):44-50.
[4]刁波,李淑春,叶英华.反复荷载作用下混凝土异形柱结构累积损伤分析及试验研究[J].建筑结构学报,2008,29(1):57-63.
[5]顾祥林,黄庆华,吴周偲.钢筋混凝土柱考虑损伤累积的反复荷载-位移关系分析[J].地震工程与工程振动,2008,26(4):68-74.
[6]Park Y J,Ang A H.Mechanistic seismic damage model for reinforced concrete[J].Journal of Structural Engineering,ASCE,1985,111(4):722-739.
[7]邱法维,李文峰,潘鹏,等.钢筋混凝土柱的双向拟静力实验研究[J].建筑结构学报,2001,22(5):26-31.
[8]李军旗,赵世春.钢筋混凝土构件损伤模型[J].兰州铁道学院学报:自然科学版,2000,19(3):25-27.
[9]陈水利,李敬功,王向公.模糊集理论及其应用[M].北京:科学出版社,2006.
[10]秦文欣,刘季,王歆玫.结构地震多重模糊破坏评估方法[J].世界地震工程,1994,(1):12-20.
[11]徐长义,钟登华,曹广晶.基于随机赋权法的水电项目综合评价方法及其应用[J].河海大学学报:自然科学版,2008,36(3):422-418.
[12]门进杰,史庆轩,刘继明.钢筋混凝土复合受扭构件抗扭承载力统一方程的研究[J].西安建筑科技大学学报:自然科学版,2006,38(2):227-231.
[13]钟善桐.钢管混凝土结构[M].北京:清华大学出版社,2003.
[14]陈绍蕃.钢结构设计原理[M].北京:科学出版社,2005.
[15]彭祖赠,孙韫玉.模糊数学及其应用[M].武汉:武汉大学出版社,2007.
[16]张连德,陈为滢,卫云亭.低周反复扭矩下钢筋砼双向偏压构件的抗震性能研究[J].土木工程学报,1993,26(2):29-38.
[17]Saatcioglu M,Baingo D.Circular high-strength concrete columns under simulated seismic loading[J].Journal of Structural Engineering,1999,125(3):272-280.
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