Simplified Analysis of Second-Order Effect on Staggered Truss Structure

Abstract:

Based on the structural characteristics that the distribution of mass and stiffness is symmetrical in staggered truss structure, the load-carrying performance of staggered truss structure is equivalent to a pressure-bend combinational strut in this paper. By analyzing the relationship among curvatures , bending moments and shear forces of the pressure-bend combinational strut, the balance differential equations of the pressure-bend combinational strut is erected. Based on Runge-Kutta method, the lateral iteration equation derived by considering the influence of the second-order effects is derived. This paper analyzes the lateral displacements of floors of the staggered truss structure examples considering second-order effects or not, and gives a comparative analysis with the existing finite element software Ansys. The results show that the calculation method of second-order effects proposed in this paper has a good precision.

• Periodical: Advanced Materials Research (Volumes 446-449)
• Pages: 857-862
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.446-449.857
• Online since: January 2012
• Authors: Qi Shi Zhou, Xu Hong Zhou, Li Ming Yang
• Keywords: Lateral Displacement of Story, Pressure-Bend Combinational Strut, Second-Order Effect, Staggered Truss Structure

References

[1] Goody M E, Hansen R J, LeMessurier W J,et al. New steel framing system promises major savings in high-rise apartments[J]. Architecture Record, 1966, 139(6): 191-196

[2] Zhou Xuhong,Mo Tao,Cai Yiyan. steel structure(in chinese), 2000,15(2):16-19

[3] Lu Linfeng.Structural analysis and design methods of steel staggered truss system [M]: [Ph.D. thesis,Xi'an University of Architecture and Technology].Xi'an:Civil engineering academe Xi'an University of Architecture and Technology(in chinese), (2003)

[4] Mo Tao.analysis of the whole process of elastic-plastic theory and experimental study of Steel staggered truss  system [M]: [Ph.D. thesis, Hunan University].Changsha:Civil engineering academe Hunan University(in chinese), (2003)

[5] Zhou Qishi. Static and dynamic performance analysis of steel staggered truss system [M]:[ Ph.D. thesis, Hunan University]. Changsha:Civil engineering academe Hunan University(in chinese), (2005)

[6] Scalzi J B. The staggered truss system-structural considerations[J]. Engineering Journal, AISC, 1971, 10: 138-143

[7] Zhou Qishi. Study of static properties on high-layer steel staggered truss  structural system [a master's degree thesis, Hunan University]. Changsha:Civil engineering academe Hunan University(in chinese), (2001)

[8] Leffler R. E. Calculation of wind drift in staggered truss buildings[J]. Engineering Journal, AISC, 1983, 1: 1-28

[9] Li Hong,Numerical Analysis [M]. Wuhan: Huazhong University Press(in chinese),(2003)