矩形钢管混凝土桁架与圆形钢管混凝土桁架受力性能对比分析
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摘要
应用非线性有限元方法,对矩形钢管混凝土桁架的受力性能进行了分析,并与圆形钢管混凝土桁架的受力性能进行了比较。结果表明:矩形钢管混凝土桁架的承载力相对于圆形钢管混凝土桁架的承载力要低些,但是结构的塑性和延性都相对较好,与圆形钢管桁架的差别不大;另外,由于矩形钢管混凝土桁架在制作和施工上的方便,弥补了承载力相对较低的缺陷,在经济上仍具有一定的优势。因此,矩形钢管混凝土桁架在桥梁工程上具有较为广泛的应用前景。
The behaviors of concrete-filled rectangular steel tubular truss(CFRSTT) are analysed by nolinear finite element method and are compared with concrete-filled circle steel tubular truss(CFCSTT).The results indicate that the bearing capacity of CFRSTT is lower than that of CFCSTT,but its others behaviors are better,almost no diffirences with CFCSTT.In addition to,the advantages of CFRSTT in mading and construction are obvious,which compensate the shorts of CFRSTT in bearing capacity,have some advantages in economy.Therefore,the CFRSTT has an extensively applicated furture in bridge engineering.
The behaviors of concrete-filled rectangular steel tubular truss(CFRSTT) are analysed by nolinear finite element method and are compared with concrete-filled circle steel tubular truss(CFCSTT).The results indicate that the bearing capacity of CFRSTT is lower than that of CFCSTT,but its others behaviors are better,almost no diffirences with CFCSTT.In addition to,the advantages of CFRSTT in mading and construction are obvious,which compensate the shorts of CFRSTT in bearing capacity,have some advantages in economy.Therefore,the CFRSTT has an extensively applicated furture in bridge engineering.
引文
[1]陈宝春.钢管混凝土拱桥的设计与施工[M].北京:人民交通出版社,2000.
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[5]陈友杰,陈宝春.钢管混凝土桁拱双重非线性有限元分析[J].福州大学学报:自然科学版,2003,31(1):82-85.
[6]邵旭东,成尚锋,李立峰.钢管混凝土拱肋节段模型试验[J].长安大学学报:自然科学版,2003,23(4):34-37.
[7]王百成,崔军,王景波.大跨度钢管混凝土桁式拱桥结构非线性分析[J].世界地震工程,2004,20(1):122-125.
[8]崔军,孙炳楠,楼文娟,等.钢管混凝土桁架拱桥模型试验研究[J].工程力学,2004,21(5):83-86.
[9]周绪红,刘永健,莫涛,等.矩形钢管混凝土桁架结构设计[J].建筑结构,2004(1).
[10]刘永健.矩形钢管混凝土桁架节点极限承载力试验与设计方法研究[D].长沙:湖南大学,2003.
[11]PACKER J A.Concrete-filled HSS connections[J].Journal of Structural Engineering,1995,121(3):458-467.
[12]PACKER J A,HENDERSONJ E,CAOJ J.空心管结构连接设计指南[M].北京:科学出版社,1997.
[13]韩林海.钢管混凝土结构-理论与实践[M].北京:科学出版社,2004.
[2]陈宝春.钢管混凝土拱桥实例集(一)[M].北京:人民交通出版社,2002.
[3]张联燕,李泽生,程懋方.钢管混凝土空间桁架组合梁式结构[M].北京:人民交通出版社,1999.
[4]欧智箐,陈宝春.钢管混凝土桁拱静力性能分析[J].福州大学学报:自然科学版,2000,28(1):62-67.
[5]陈友杰,陈宝春.钢管混凝土桁拱双重非线性有限元分析[J].福州大学学报:自然科学版,2003,31(1):82-85.
[6]邵旭东,成尚锋,李立峰.钢管混凝土拱肋节段模型试验[J].长安大学学报:自然科学版,2003,23(4):34-37.
[7]王百成,崔军,王景波.大跨度钢管混凝土桁式拱桥结构非线性分析[J].世界地震工程,2004,20(1):122-125.
[8]崔军,孙炳楠,楼文娟,等.钢管混凝土桁架拱桥模型试验研究[J].工程力学,2004,21(5):83-86.
[9]周绪红,刘永健,莫涛,等.矩形钢管混凝土桁架结构设计[J].建筑结构,2004(1).
[10]刘永健.矩形钢管混凝土桁架节点极限承载力试验与设计方法研究[D].长沙:湖南大学,2003.
[11]PACKER J A.Concrete-filled HSS connections[J].Journal of Structural Engineering,1995,121(3):458-467.
[12]PACKER J A,HENDERSONJ E,CAOJ J.空心管结构连接设计指南[M].北京:科学出版社,1997.
[13]韩林海.钢管混凝土结构-理论与实践[M].北京:科学出版社,2004.
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