A numerical analysis on slender columns for flat-plate structures using finite element method (FEM) technique

2nd International Conference on Advancements in Aeromechanical Materials for Manufacturing

航空航天工程;材料科学;机械制造

Choudhary, Apoorv^1 ; Malik, Milind^1 ; Prakash, Jay^2 ; Kumar, Ajay^3 ; Tiwari, Sachin^4

Department of Civil Engineering, Northern India Engineering College, New Delhi

110053, India^1

Department of Civil Engineering, Karadeniz Technical University, Trabzon

61080, Turkey^2

Institute of Biomedical Sciences, Department of Mechanical and Electro Mechanical Engineering, National Sun Yat-sen University, 70 Lienhai Rd., Kaohsiung

80424, Taiwan^3

School of Engineering, Gautam Buddha University, Greater Noida

201310, U.P., India^4

关键词: ETABS;    Flat plate;    Non-sway;    Slender columns;    Slenderness effect;    Sway frames;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/455/1/012096/pdf
DOI  :  10.1088/1757-899X/455/1/012096

来源: IOP

【 摘 要 】

The research carries out a parametric study to analyse slenderness effect in column design of reinforced cement concrete (RCC) flat-plate structures based on Indian standard (IS) codes namely, IS 456: 2000 and IS 875. This study is conducted on 36 columns at three locations (i.e. corner, edge and inner columns) in 12 flat-plate RCC structural models. First the methods describe in the Indian standard code for designing slender column is reviewed manually for one structural model and then FEM models are generated by using ETABS software. Parametric study is achieved by considering: four different length of column range from 3m to 6m using an increment of 1m and three slab panel's size 4.5m x 4.5m, 6m x 6m and 7.5m x 7.5m with three panels in both ways. Result shows that corner and edge column has most slenderness effect. Column height increase on and beyond 5m is substantially vulnerable for sway effect. If column length increases from one particular stage to another then steel ratio increases. In many cases, a column is not slender by considering now-sway frame but very slender by considering sway frame. For this reason, a designer should check a column for both non-sway and sway conditions.