ANALYSIS AND DESIGN OF R.C.C. BRIDGE

Abstract

The thickness of pier is found taking width of deck slab variable, width of girder, depth of girder variable. The thickness of any structure gives flexural rigidity against bending. Span of girder also taken variable. More bending is taken when more loads on the structure & flexural rigidity mainly depends upon thickness of the structure. The design and analysis of R.C.C. bridges involve careful consideration of various factors, including the thickness of the pier. The pier thickness directly influences the flexural rigidity of the structure, which is crucial for its ability to resist bending and maintain stability. This abstract will further explore the relationship between the pier thickness and the variables such as the width of the deck slab, width of the girder, depth of the girder, and the span of the girder. The width of the deck slab is an important variable that affects the overall dimensions of the pier. The deck slab serves as the top surface of the bridge, providing a platform for vehicles and pedestrians. The width of the deck slab is determined based on the required traffic capacity, safety considerations, and design standards. It directly influences the overall width of the pier, which in turn affects the flexural rigidity of the structure.The width and depth of the girder also play a significant role in determining the pier thickness. The girder is a structural element that supports the deck slab and transfers the imposed loads to the piers and abutments. The width and depth of the girder are determined based on design requirements such as the span of the bridge, expected traffic loads, and desired structural performance. These parameters directly impact the bending moments experienced by the pier and, consequently, the required thickness for achieving sufficient flexural rigidity.Additionally, the span of the girder is a variable that influences the pier thickness. The span refers to the distance between two adjacent piers or supports. Longer spans generally result in higher bending moments and increased flexural rigidity requirements. The selection of an appropriate span length is crucial for achieving an optimal balance between structural performance, construction cost, and aesthetic considerations.It is important to note that the pier thickness is directly related to the flexural rigidity of the structure. Flexural rigidity refers to the ability of a structure to resist bending under the applied loads. The thickness of the pier plays a vital role in providing the necessary resistance against bending moments induced by the loads. By selecting an appropriate thickness, the flexural rigidity of the structure can be optimized, ensuring its stability and structural integrity.