小角度斜交杆件连接节点承载力研究
|
摘要
对小角度斜交杆件节点连接做法提出一种新的连接构造方式,并对该连接方式的传力机理及其改进形式进行研究。利用有限元方法对小角度斜交杆件节点连接的4种方式进行了系统的研究,得到理想杆4种连接方式在轴心受拉时的极限承载力以及在轴心受压作用下的屈曲临界荷载,同时对非理想杆在受压时的屈曲荷载进行了计算。对4种连接方式的受力性能进行了分析和比较,并建议使用按所提出的改进型节点连接方式进行节点设计。另外针对小角度斜交杆件连接节点的设计也给出了一些建议。
A new connection method about oblique crossing members with small angle was proposed. And the loadtransferring mechanism and modified form of the connected joint was introduced. Using the finite element method,the four forms of connection of oblique crossing members with small angle were studied systematically. The ultimate bearing capacity of the joints connected by the idea members in the above 4 ways under the axial tensile force was obtained,as well as the critical buckling load under axial compressive action. The buckling load of the imperfect members under compression was also calculated. The mechanical properties of the four kinds of connection were analyzed. And it recommended for using a modified form by the proposed connection method in design. The paper also provided a number of other design proposals.
A new connection method about oblique crossing members with small angle was proposed. And the loadtransferring mechanism and modified form of the connected joint was introduced. Using the finite element method,the four forms of connection of oblique crossing members with small angle were studied systematically. The ultimate bearing capacity of the joints connected by the idea members in the above 4 ways under the axial tensile force was obtained,as well as the critical buckling load under axial compressive action. The buckling load of the imperfect members under compression was also calculated. The mechanical properties of the four kinds of connection were analyzed. And it recommended for using a modified form by the proposed connection method in design. The paper also provided a number of other design proposals.
引文
[1]中华人民共和国建设部.高层民用建筑钢结构技术规程:JGJ99—98[S].北京:中国建筑工业出版社,1998.
[2]中华人民共和国住房和城乡建设部.钢结构焊接规范:GB50661—2011[S].北京:中国建筑工业出版社,2012.
[3]TIMOSHENKO S P,GOODIER J N.Theory of Elasticity[M].徐芝纶,译.北京:高等教育出版社,1990.
[4]中华人民共和国住房和城乡建设部.建筑抗震设计规范:GB50011—2010[S].北京:中国建筑工业出版社,2010.
[5]刘鸿文.板壳理论[M].杭州:浙江大学出版社,1987.
[6]中华人民共和国建设部.钢结构设计规范:GB 50017—2003[S].北京:中国计划出版社,2003.
[7]冯康.弹性结构的数学理论[M].北京:科学出版社,1981.
[8]刘麒闻.壁行吊车梁系统的数值仿真[J].南通大学学报(自然科学版),2016,15(2):40-47.
[9]HUGHES T J R.The Finite Element Method[M].Englewood Cliffs,N.J.:Prentice-Hall,1987.
[10]CHAJES A.Principles of Structural Stability Theory[M].Englewood Cliffs,N.J.:Prentice-Hall,1974.
[11]杨涛,王燕.钢框架肋板加强式连接节点域的力学性能研究[J].钢结构,2015,30(2):1-6.
[2]中华人民共和国住房和城乡建设部.钢结构焊接规范:GB50661—2011[S].北京:中国建筑工业出版社,2012.
[3]TIMOSHENKO S P,GOODIER J N.Theory of Elasticity[M].徐芝纶,译.北京:高等教育出版社,1990.
[4]中华人民共和国住房和城乡建设部.建筑抗震设计规范:GB50011—2010[S].北京:中国建筑工业出版社,2010.
[5]刘鸿文.板壳理论[M].杭州:浙江大学出版社,1987.
[6]中华人民共和国建设部.钢结构设计规范:GB 50017—2003[S].北京:中国计划出版社,2003.
[7]冯康.弹性结构的数学理论[M].北京:科学出版社,1981.
[8]刘麒闻.壁行吊车梁系统的数值仿真[J].南通大学学报(自然科学版),2016,15(2):40-47.
[9]HUGHES T J R.The Finite Element Method[M].Englewood Cliffs,N.J.:Prentice-Hall,1987.
[10]CHAJES A.Principles of Structural Stability Theory[M].Englewood Cliffs,N.J.:Prentice-Hall,1974.
[11]杨涛,王燕.钢框架肋板加强式连接节点域的力学性能研究[J].钢结构,2015,30(2):1-6.