Layered-Shell Element Method of Calculating the Multi-Ribbed Composite Slab’s Elastic Lateral Stiffness


Article Preview

A new method for calculating the elastic lateral stiffness of the multi-ribbed composite slab by ANSYS—the layered-shell element method is introduced in this paper. In the modeling process, there are two ways for establishing the model using element SOLID46: the first refers to regarding the slab as a whole to make arranged layers. While the second type suggests that making arranged layers in each part already separated according to the materials. Especially when there are reasonable hypothesis, the analysis results can guarantee certain precision. By comparison among the two models and the experimental results, no errors with each other have exceeded 5%. The whole model is used for the numerical simulation in view of its briefness. Several factors affecting elastic lateral stiffness are considered, mainly including elastic modulus of the concrete, elastic modulus of the brick, and number of the ribbed-column. From the calculating results, conclusion can be deduced that all of these factors affecting the slab’s stiffness significantly. Along with the factors’ rising, the elastic lateral stiffness of the wall grows up. Basically, the influence factor and the elastic lateral stiffness of the slab present to be linear relationship. It is also meaningful to see that the elastic modulus of the brick plays a very important part in the elastic lateral stiffness of the wall. When compared to the SOLID65 and LINK8 used for the slab’s modeling before, the layered-shell element method is simple in principle, and distinct in conception. Above all, because only one type of element in the finite element analysis is used, it will cost less time when used on building a model of integrated architectural construction.



Advanced Materials Research (Volumes 243-249)

Edited by:

Chaohe Chen, Yong Huang and Guangfan Li




P. Chang and Y. Luo, "Layered-Shell Element Method of Calculating the Multi-Ribbed Composite Slab’s Elastic Lateral Stiffness", Advanced Materials Research, Vols. 243-249, pp. 1346-1350, 2011

Online since:

May 2011





[1] HUANG Wei, YAO Qian-feng, ZHANG Xu-feng, LU Gang: Calculation Analysis on New Type Composite Wall Elastic Lateral Rigidity, Earthquake Resistant Engineering and Retrofitting, Vol. 27 (2005), pp.1-7.

[2] ZHANG Jian, YE Jian-shu, CHEN Yan, QIAN Pei-shu: Analysis of Ultimate Loads of Multi-T Girders Based on Layered-shell Element Method, Journal of Highway and Transportation Research and Development, Vol. 24 (2007), pp.81-85.

[3] MIAO Xiao-yu: Experimental Research and Finite Element Analysis on Seismic Behavior of RC Mid-rise Shear Wall: Master Thesis.

[4] HUANG Wei: Research of Seismic Performance and Design Theory of Multi-ribbed Slab Wall: Doctoral Thesis, pp.16-25.

[5] WANG Zhen-ming: Mechanics and Structural Mechanics of Composite Materials, edited by China Machine Press.

[6] A. Neuenhofer, P.E.: Lateral Stiffness of Shear Walls with Openings, Journal of Structural Engineering (2006).

[7] X. Qi S. J. Pantazopoulou: Response of RC Frame under Lateral Loads, Journal of Structural Engineering VOL. 117 (1991).