International Research Journal of Engineering and Technology (IRJET)
e-ISSN: 2395-0056
Volume: 09 Issue: 06 | Jun 2022
p-ISSN: 2395-0072
www.irjet.net
ANALYSIS OF BRIDGE DECK SLAB WITH CERAMIC MATRIX COMPOSITE BARS AS REINFORCEMENT Riswana M.H1, Jinu V.R 2 1PG
student, KMEA Engineering college, Edathala P.O, Aluva, kerala, India professor, Civil Department, KMEA Engineering college, Edathala P.O, Aluva, Kerala, India ---------------------------------------------------------------------***--------------------------------------------------------------------2.1 DECK SLAB DETAILS Abstract – Current study of bridge deck slab includes the 2Assistant
modal and transient analysis of bridge deck slab subjected to moving load by using ANSYS software. This method can be a viable and reliable tool for bridge deck slab analysis. In this paper two different materials such as CVI-C/Sic and LPI-C/Sic are replaced instead of steel reinforcement. Also analysis was done with combination of these material. The purpose of this study is to assess the total deformation and equivalent stress in bridge deck. Nonlinear analysis in structural elements are performed using the ANSYS workbench.
Table -1: Material properties of deck slab
Key Words: Bridge deck slab, Finite element analysis, Ceramic matrix composite, natural frequency
1. INTRODUCTION The bridge can also be evaluated with laboratory experiments, field test and analytical tools. Fatigue is the progressive deterioration of a structure caused by an increase in a fracture that results in a series of stress change. Repetitive loads, such as during traffic and heavy vehicles on bridge sections. Crossing bridge decks must withstand one of the most damaging types of live loads, such as centralized and direct. The primary function of the deck is to distribute these force in a convenient manner. The present study used to examine the total deformation and equivalent stress of bridge deck under varying reinforcement materials. In the analytical method the accuracy of the outcome depends on the ability to stimulate the problem.
Properties
CVI-C/Sic
LPI-C/Sic
Concrete
Young’s modulus
65000MPa
95000 MPa
3000 MPa
Poisson’s ratio
0.3
0.3
0.18
Bulk modulus
54167MPa
79167 MPa
15625 MPa
Shear modulus
25000MPa
36538 MPa
12712 MPa
Fig -1: Modelled view of deck slab with CVI-C/Sic material
2 MODELING USING ANSYS The finite element analysis modelling is done using ANSYS software. 6 degree of freedom 3D element is used for concrete material and Beam element as reinforcement. The depth of slab is 200mm. Reinforced concrete bridge modelling is carried out by ANSYS design modular. Material properties of deck slab are given in table 1.
Fig -2: Tetrahedral meshing of modelled deck slab From figure 1 the modelled view of deck slab with CVI-C/Sic material can be seen. Figure 2 shows the meshing of modelled slab and Figure 3 shows the boundary conditions of deck slab. In these a 20 mm displacement is applied in Xdirection. Here fixed support is provided.
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