Open Access Journal

ISSN : 2394-2320 (Online)

International Journal of Engineering Research in Computer Science and Engineering (IJERCSE)

Monthly Journal for Computer Science and Engineering

Open Access Journal

IInternational Journal of Engineering Research in Mechanical and Civil Engineering (IJERMCE)

Monthly Journal for Mechanical and Civil Engineering

ISSN : 2456-1290 (Online)

Analysis and Design of R.C.C. T-girder Bridge under IRC Class AA and Class A Loading

Author : Sudarshan Prabhakar Patil 1 Kameshwar Rao Tallapragada 2

Date of Publication :22nd March 2017

Abstract: Reinforced concrete bridges with different types of deck slab have been widely used for both road and railway bridges. The most common type is the slab deck used for short span bridges. For medium span in the ranges of 12 to 25 m T- Girder and slab deck is widely used. In the case of T Girder and deck slab type, the slab span in two directions since it is cast integrally with main girder and cross girder. The deck slab is generally designed for either by 70 R loading or class AA Tracked wheel loading. IRC recommends bridge designed for class AA loading should also be checked for IRC class A loading. However in conventional analysis many of the important considerations are ignored by the various designers, which proved out to be somewhat unrealistic during the pragmatic conditions. For an assessment of the load carrying capacity of a bridge, one needs to know the maximum bending moment and the shear force included in the beams or girders of the bridge by vehicular loads. These maximum design load effect can be calculated by the conventional method such as Courbon’s method. The main objective of study is to analyse super structure for IRC Class AA loading (Tracked vehicle) and IRC Class A loading to compute the values of bending moment, shear force and deflection for span range from 16 to 24 m. The analysis of super structure of different sections and spans is carried out by Courbon’s method using MS Excel and by using software. The bending moment and shear force results obtained by were less up to 18 m span when compared to results obtained by MS Excel and vice-versa as the span increased. The safe design section is obtained by deflection criteria.

Reference :

    1.  A.M.David Jawad and A.K.Anis Mohamad-Ali (2010),”Analysis of Dynamic Behavior of T-Beam Bridge Deck Due to Heavy Weight Vehicle”, Emirates Journal foe Engineering Research, Vol15, No.2, pp 29- 39.
    2.  B.C. Punmia, Ashok K Jain, Arun K. Jain, “Reinforced Concrete Structure”, volume1 and volume 2, Laxmi Publication Pvt. Ltd
    3. IRC: 6-2000, “Standard Specification and Code of Practice for Bridges section: II, Loads and Stresses”, Indian Road Congress New Delhi, pp10-14, and pp22- 24.
    4.  IRC: 21-2000, “Standard Specification and Code of Practice for Bridges”, section: III, Indian Road Congress New Delhi, pp20-21, pp35-38, and pp52-55.
    5.  IS 456:2000, “Indian Standard Plain and Reinforced Concrete Code of Practice (Fourth Revision)”, BIS, New Delhi, pp37-38, pp75-76, and pp88.
    6. K.I.Gajjar and N.K.Arora (October 2011), “An Analytical Aid for Analysis of Two Lane Bridge”, International Journal of Earth Sciences and Engineering, Vol.4, No.6, pp 741-743.
    7. N.Krishna Raju, “Deign of Bridges”, Fourth Edition, Oxford and IBSH publishing company
    8. R.Shreedhar, Spurti Mamadapur (2012), “Analysis of TBeam Bridge Using Finite Element Method”, International Journal of Engineering and Innovative Technology (IJEIT), Vol.2, No. 3.
    9. Sushil kumar, “Treasure of RCC Design”, Rajsons Publication Pvt. Ltd.

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