Author Archives: Johnny

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MTech Structural Engineering

Bridge Site Selection & Guidelines

Bridge Site Selection & Guidelines SURVEY • Social Feasibility Survey and • Technical Survey Both surveys are of equal importance. The social feasibility survey establishes community ownership and responsibility, and the technical survey ensures that bridge construction is sound and safe. SOCIAL FEASIBILITY SURVEY Level of local participation • size of area of influence •… Read More »

Bridge Engineering – Classification of Bridges

Bridge Engineering – Components of Bridge Structures A bridge is a structure providing passage over an obstacle without closing the way beneath. The required passage may be for a road, a railway, pedestrians, a canal or a pipeline. The obstacle to be crossed may be a river, a road, railway or a valley.  Classification of… Read More »

Inelastic Seismic Response of Structures

Inelastic Seismic Response of Structures Under relatively  strong  earthquakes, structures undergo inelastic  deformation  due to  current seismic design philosophy. Therefore, structures should have sufficient ductility  to deform beyond the yield limit.  For understanding the ductility demand imposed by the  earthquake,  a  study  of  an  SDOF system  in inelastic range is of great help. The  inelastic … Read More »

Bituminous Road Deterioration

Bituminous Road Deterioration Base Types Granular Base Asphalt Base Asphalt Pavement Base Stabilized Base Surface Types and Materials Asphalt Concrete Hot Rolled Modified Asphalt Rubberized Asphalt Polymer Asphalt Concrete Soft Bitumen Mix (Cold Mix) Porous Asphalt Stone Mastic Distress Modes Surfacing Distress Cracking Ravelling Potholing Edge-Break Deformation Distress Rutting Roughness Pavement Surface Texture Distress Texture… Read More »

Bituminous Materials and Bitumen | All About Bitumen & Types | Cutback Bitumen | Tar

Bituminous Materials & Bitumen Bituminous materials,classification and various terms used related to tar and bitumen. uses and applications of different bituminous materials in highway construction, origin and preparation of different grades of bitumen and tar. the rheology of bituminous  binders,adhesion,failures,weathering of bituminous road. material  admixtures,rubber,tar. introduction to recent development in highway materials Introduction growth of… Read More »

Conceptual Approach to Pavement Management

Conceptual Approach to Pavement Management Learning Objectives Describe the components of a pavement management system Describe the types of models that are used in a pavement management system Describe the use of pavement management techniques in a transportation agency Approach Introduce Pavement Management Conceptually Introduce the Components of a Pavement Management System Discuss Each Component… Read More »

Selection of Site for Bridge

Selection of Site for Bridge Location Features Location should : Facilitate practical cost effective design, construction, operation, inspection and maintenance. Provide for the desired level of traffic service and safety Minimize adverse highway impacts Fit the conditions created by the obstacle being crossed WATERWAY AND FLOODPLAIN CROSSINGS Hydrologic and Hydraulic characteristics of the waterway and… Read More »

Response Spectrum Analysis in STAAD explanation Video

Response Spectrum Analysis in STAAD explanation Video Methodology The design lateral shear force at each floor in each mode is computed by STAAD in accordance with the IS: 1893 (Part 1) -2002 (equation 7.8.4.5c and 7.8.4.5d.) Qik = Ak*fik*Pk*Wi STAAD utilizes the following procedure to generate the lateral seismic loads. User provides the value for… Read More »

Design of Square Footing with Axial Loading (Solved Example)

Design of Square Footings Footing is the lower end of a column, pillar or wall which is enlarged with projecting courses so as to distribute the load. Below explained design of a concrete footing. See the attached document below for detailed explanation of design of square footing. Problem Design a square footing for a square… Read More »