Analysis and Design of RCC Silo for Storage of 2000 ton using E-Tabs Software

Analysis and Design of RCC Silo for Storage of 2000 ton using E-Tabs Software

1st Osama Khalfalla Alshambati

Dept. Civil Eng. Al zaiem Al azhari University.

Khartoum, Sudan

2ed Majdi Elgaili Mukhtar Ahmed

Dept. Civil Eng. Al zaiem Al azhari University Assistant Professor

Khartoum, Sudan

Abstract:-The research article looks in to Design and analysis of RCC silo to store granular material. Up to 2000 ton, by using the BS-8110 recommendation and Etabs software, And for better understanding of the structural behavior during loading. Also to showcase the loading capacity & design charts, the walls of the silos are typically subjected to both normal pressure and vertical frictional shear or traction produced by the material stored inside the silo.

.And the selected silo is located in Sudan as case study with circular walls. For storing agricultural Martials.

KeywordsRCC silo t; concrte design ; analysis of silo;; etabs software ; storage design

I. INTRODUCTION

.Silos are storage structure which can be concrete or steel structure with many types depending the storage volume and the martials type, this article reveals the structural behavior during loading , the loading capacity, classification of silos lastly the load path in structure. Considering its location in Sudan & to store 2000 ton barely by using etab.

Some of the types can be Bunker silos, Bag silos Sand and salt silos lastly fabric silos. And they can be cylindrical or square shaped. Depending on the storage and the loading capacity determined.

II. LITERATURE REVIEW

• , the silo is essential in the agricultural, industrial, and military domains. People used to keep items in bins that were constructed by guesswork until the 1960s. Andrew W. Jenike's 1960s study laid the groundwork for the bin design. Traditional approaches' silos are insufficient owing to the implementation of simplistic solutions in complicated settings (Wojcik et al., 2003). Earthquakes frequently cause damage to silos and/or their collapse, causing not only huge financial losses but also fatalities. For example, after the 2001 earthquake in El Salvador, three people died as a consequence of a silo failure (Mendez 2001).

• It +6 is difficult to calculate and understand the loads of solids on the walls and interior of such buildings. As a result, silos and bunkers disintegrate much faster than other industrial equipment.

  Defecting a part can lead to deformation or deformation, which is unpleasant, but does not affect safety or operation. In some cases, failures lead to complete collapse of the structure, leading to discontinuation of use and death (Carson 2000). In the last 50 years, many attempts have been made to encode the inductive force of a solid acting on a silo wall. The German Standard DIN 1055 Part 6 "Design loads for buildings: Loads in silo bins" was established through rigorous testing by the researchers (Pieper et al., 1964), who published the first code to offer useful instructions to design engineers estimating silo loads. This standard was initially published in 1964, and it has been considerably altered and republished twice since then, in 1987 and 2005.

• Based on a basic model presented by various researchers (Rotter 1986, 2001). Some of the complexity arises due to different methodologies adopted by different researchers, this can be treated using action assessment class (AAC), in association with patch loads. Many applications require knowledge of the pressures happening in silos and other types of containers packed with powders or bulk materials (Schulze 2021):

1. Methdology:

   1. Properties of the structure :-

      Width Height Length

      12 M 51 M 12 M

   2. The selected approach in this article through E-tabs software for analysis and the design sheets too. Statically choosing about (1500-2000) ton of storage and considering non earthquake behavior duo to SUDAN geographic features.

   3. According to the weight of the silo seismic loads and horizontal the center mass is increased as the load being transferred to the soil with cylindrical design.

Figure 1-plan view of RCC silo.

Figure 2 vertical plan view of RCC silo

Figure 3-silo classification

Figure 4 loads on RCC structure

Figure 5 loads combinations

.After defining loads and choosing the limit state design method for analyzing model in E-tabs, then assigning those loads and have better understanding of the model behavior in resisting horizontal pressure and vertical axial force acting towards it. And forecasting its dereliction reaction and its maximum loads capacity. All those steps ware made

III. RESULTS .

.After doing the steps above we concluded that the structural behavior of loading depends on the height of silo, and the weight capacity of its content and a key factor of its failure is loading and footing type if not matched, below are results of this thesis

Figure 6- analysis results on loads

Figure 7- silo classification.

Figure 8- Model reaction upon loads.

Figure 9-Story results.

Figure 10- max-min values of moment.

.and the following result shows that the model is fit for containing loads up to 20,000 ton perfectly. And its structural behavior so we can even add-up more than this slightly

A. Recommendations & discution:-

Based on the result above and the outcoming strucural result we can coculoud that silos are more than concrete struture with capacity of loading but also a great storage and can contain up to 20000 ton of weight aduqtely if being costructrd cearfully. And more safescitiated based on loading , filling , draining , slope of drainage and defiliction measurment by the BS8110-1997 design recommendation and more sutibale for soil geography in SUDAN with capacity for more and taller height .

REFERENCES

[1] Jeyashree T.M. and M. Nethaji. (2020). Experimental investigation on flexural behavior of reinforced concrete curved beams with different types of shear reinforcement. International journal on emerging technologies 11(3): 615-618(2020).

[2] Hayder, M. K. Al-Mutairee and Dolfocar A. U. Witwit. (2016). Analytical Study of reinforced concrete horizontally curved beam of rectangular hollow section. International institute for science and technology Vol. (8) No.5

[3] T. Subraman, M. Subramani and K. Prasath. (2014). Analysis of Three Dimensional Horizontal Reinforced Concrete Curved Beam Using Ansys. Journal of Engineering Research and Applications www.ijera.com ISSN : 2248-9622, Vol. 4, Issue 6, (Version 6), June

2014, pp.156-161.

[4] Ammar Yaser Ali. and Sadjad Amir Hemzah. (2014) Nonlinear Analysis for Behavior of RC Horizontally Curved Ring Beams with Openings and Strengthened by CFRP Laminates. Jordan Journal of Civil Engineering, Volume 8, No.4

[5] M.Vahidi, V.Jafari, M.Rahimian, and Sh.Vahdani. (2014). A full nonlinear curved beam element with mixed formulation in state space. Blucher mechanical engineering proceedings. Vol. 1 No.1.

[6] Anas H. Yousifany (2010), Evaluation of the Behavior of Reinforced Concrete Curved in-Plane Beam. Iraqi Journal of Civil Engineering Vol. 6, No. 2, pp. 14-25.

[7] Al-Mutairee H.M.K. (2008), Nonlinear Static and Dynamic Analysis of Horizontally Curved Beams, Ph.D Thesis, University of Babylon.

[8] Yeong-Bin_Yang., Nonlinear framed Structures, Prentice Hall 1994

[9] Thannon, A. Y., (1993). "Nonlinear three dimensional finite element analysis of reinorced concrete curved beams", Al-Rafidain Engineering, Vol. 1, No. 2, pp. 2-16.

[10] Yeong-Bin Yang, Shyh-Rong Kuo, and Yunn-Dar Cherng (1989). CURVED BEAM ELEMENTS FOR NONLINEAR ANALYSIS

Journal of Engineering Mechanics, Vol. 115, No. 4

[11] E. N. Dvorkin., E. Orate., and J. Oliver., (1988). On nonlinear formulation curved Timoshenko beam element considering large displacement and rotations. International journal for numerical methods in engineering. Vol. 26 1567-1613.

[12] Yeong-Bin Yang and Shyh-Rong Kou. (1987) EFFECT OF CURVATURE ON STABILITY OF CURVED BEAMS Journal of

Structural Engineering, Vol. 113, No. 6, June, 1987. ©ASCE, ISSN 0733-. Paper No. 21552.

[13] Yeong-Bin Yang, Shyh-Rong Kuo, and Yunn-Dar Cherng (1986). Effect of Curvature on Stability of Curved Beams Journal of Structural Engineering, Vol. 113, No. 6,

[14] Chen, W., "Plasticity in Reinforced Concrete", McGraw-Hill Book Company, U.S.A., pp.592, 1982.

[15] Thomas. T., C. Leonard, F. and Mehmet J., (1978). "Behavior of reinforced concrete horizontally curved beams." ACI, Vol. 75, PP. 112-123.

[16] Badawy H. E. I., McMullen A. E. and Jordaan, I. J., (1977), Experimental Investigation of the Collapse of Reinforced Concrete Curved Beams, Magazine of Concrete Research, Vol. 29, No. 99, pp. 59-69.

[17] Jordaan I.J., Khalifa M.M.A. and McMullen, A.E., Nov. 1974, Collapse of Curved Reinforced Concrete Beams, Journal of ASCE, Vol.100, No.ST11.

[18] Yee-Chit Wong, (1969), horizontally curved beams analysis and design, Mater thesis, Oregon state university.