钢桁架连梁非线性有限元分析
|
摘要
考虑混凝土和韧性金属损伤塑性模型,对钢桁架连梁的受力性能进行了非线性有限元分析。通过试验研究与理论分析的对比,表明本文的非线性有限元分析方法具有较高的精度。通过本文的参数分析表明:只有在增强弦杆和腹杆的同时使两者相互匹配,才能保证结构承载力和延性的提升,单纯增强弦杆或腹杆可能导致结构受力的不协调,增加直腹杆能有效的提高结构的极限承载力。
In this paper,concrete and ductile metal plastic damage model was considered,and nolinear FEA method was carried on to analyze the mechanical property of steel truss coupling beam.Through the comparation of experimental and theoretical analysis results,the nonlinear finite element analysis method shows high precision.In this paper,parameter analysis shows that only in strengthening chord and web member while make both mutual matching,can assure increasing the bearing capacity and ductility of the structure,only enhancing chord or web member may cause inharmonious structure stress,but increasing horizontal web members can effectively improve the ultimate bearing capacity of the structure.
In this paper,concrete and ductile metal plastic damage model was considered,and nolinear FEA method was carried on to analyze the mechanical property of steel truss coupling beam.Through the comparation of experimental and theoretical analysis results,the nonlinear finite element analysis method shows high precision.In this paper,parameter analysis shows that only in strengthening chord and web member while make both mutual matching,can assure increasing the bearing capacity and ductility of the structure,only enhancing chord or web member may cause inharmonious structure stress,but increasing horizontal web members can effectively improve the ultimate bearing capacity of the structure.
引文
[1]李方圆,梁兴文,张涛.新配筋方案小跨高比连梁受剪承载力计算[J].建筑结构,2009(8).
[2]李奎明,李杰.钢筋混凝土双连梁短肢剪力墙结构试验研究[J].同济大学学报:自然科学版,2009,37(5):587-596.
[3]邓志恒,潘峰,陶晓光,等.新型组合连梁控制结构体系[J].世界地震工程,2003,19(3):6-11.
[4]Patrick J.Fortney,Bahram M.Shahrooz,Gian A.Rassati.Large-Scale Testing of a Replaceable“Fuse”Steel Coupling Beam[J].Journal of Structural Engineering.DECEMBER 2007:1801-1807.
[5]Wan-Shin Park,Hyun-Do Yun.Seismic behavior and design ofsteel coupling beams in a hybrid coupled shear wall systems[J].Nuclear Engineering and Design,2006,236:2474-2484.
[6]Qian Lin,Zhiheng Deng,Guangxian Tang.Experimental Study onSeismic Behavior of Full-scale New Steel Truss Coupling Beams[J].Advanced Materials Research,2011,Vols,163-167,Part 3.
[7]邓志恒,胡强,潘志明,等.钢桁架连梁耗能性能实验研究及损伤分析[J].自然灾害学报,2009(6):38-43.
[8]过镇海,时旭东.钢筋混凝土原理和分析[M].北京:清华大学出版社,2009.
[9]Lubliner J,Oliver J,Oller S,et al.A plastic-damage model for con-crete[J].International Journal of Solids and Structures,1989,25(3):229-232.
[10]曾磊,许成祥,郑山锁.型钢高强高性能混凝土框架节点非线性有限元分析[J].工程抗震与加固改造,2010:37-41.
[11]徐冬晓.钢桁架连梁抗震性能试验研究[D].南宁:广西大学,2008.
[2]李奎明,李杰.钢筋混凝土双连梁短肢剪力墙结构试验研究[J].同济大学学报:自然科学版,2009,37(5):587-596.
[3]邓志恒,潘峰,陶晓光,等.新型组合连梁控制结构体系[J].世界地震工程,2003,19(3):6-11.
[4]Patrick J.Fortney,Bahram M.Shahrooz,Gian A.Rassati.Large-Scale Testing of a Replaceable“Fuse”Steel Coupling Beam[J].Journal of Structural Engineering.DECEMBER 2007:1801-1807.
[5]Wan-Shin Park,Hyun-Do Yun.Seismic behavior and design ofsteel coupling beams in a hybrid coupled shear wall systems[J].Nuclear Engineering and Design,2006,236:2474-2484.
[6]Qian Lin,Zhiheng Deng,Guangxian Tang.Experimental Study onSeismic Behavior of Full-scale New Steel Truss Coupling Beams[J].Advanced Materials Research,2011,Vols,163-167,Part 3.
[7]邓志恒,胡强,潘志明,等.钢桁架连梁耗能性能实验研究及损伤分析[J].自然灾害学报,2009(6):38-43.
[8]过镇海,时旭东.钢筋混凝土原理和分析[M].北京:清华大学出版社,2009.
[9]Lubliner J,Oliver J,Oller S,et al.A plastic-damage model for con-crete[J].International Journal of Solids and Structures,1989,25(3):229-232.
[10]曾磊,许成祥,郑山锁.型钢高强高性能混凝土框架节点非线性有限元分析[J].工程抗震与加固改造,2010:37-41.
[11]徐冬晓.钢桁架连梁抗震性能试验研究[D].南宁:广西大学,2008.
版权所有：© 2023 中国地质图书馆 中国地质调查局地学文献中心