![]() But he must balance with the other two dimensions i.e. When it comes to the concern of a structural engineer, the scientific dimension comes to be the primary criteria. These massive structures make use of huge amount of concrete, which in turn make use of aggregates from nature. This will influence the strength and the dimensions of the bridge and affect the maintenance related to the same.Īll these bring up a higher impact on the environment, in the form of air pollution, higher depletion of natural resources. With the development of new heavy vehicles with huge capacities, the engineers are forced to construct the bridges with higher capacity. The accurate behavior of structures is clearly analyzed with the help of new techniques of scale models, computers for huge analysis and aerodynamic studies. These had led to the new construction choices in arches, cable supported structures, slender structures and longer spans. The steel is available with higher capabilities, like high strength varying from 60MPa to 100MPa, that have remarkable ductility and corrosion resistance. Two cables out of twenty-two are made of this material. The Winterthur Bridge in Switzerland, make use of such cables. CFRP cables, that gain a strength of 3300Mpa and modulus of elasticity of 165GPa, was also made. The development of carbon fiber reinforced polymer i.e. It composed of five box girders with a clear span of 20.4m. Going through such innovations in technologies, the first FRP material constructed bridge was in China in the year 1982. Now instead of bricks, steel, cement etc., construction are carried out by glass fibers, carbon fibers etc. This technology has helped in bringing and refining alternatives in the bridge construction. There have been many technological developments over decades in the field of new structures, methods of construction and materials, as an alternative for rare ones and in bringing new machinery that works over human workers. ![]() Technological Dimensions for Bridge Construction The social dimension has a direct close connection with the scientific and the technological dimension. This arises in the situation of choice of location or the facility, or in prioritizing the needs for the welfare of the economy. There are also chances for the incorporation of political dimension with the social dimension. The above considerations come under the social dimension. This would help in looking the construction as a cost benefited work and as a means of economic development. It is not only required for the bridges to satisfy the need of mobility and the future demands but also must satisfy the problems related to noise, pollution, during and after construction.Īs the structure is the for the welfare of the whole community, the people are also committed and responsible for bringing their contribution to this welfare in the form of taxes, levies or in the forms of tolls. Such a huge construction brings changes to the society and the people, but also bring adverse changes to the environment. This dimension helps to realize the pros and cons of such construction and their related precautions. These structures improve the mobility of people as well as the material. Hence efficient structures are evolved with the help of the scientific dimension.Įnhancement of quality of life of the people, are greatly facilitated by the bridge construction. Various scientific developments that are made by the engineers based on these like bringing different alternative materials by chemical analysis, physics - to observe and analyze the dynamic behavior of the structure Mathematics - used to analyze and determine the forces and the stresses. In one or the other form, the scientists or the engineers make use of pre-existing technologies in nature, that the only difference is the method they used to undergo. Scientists explain these natural forms and the existence of these laws with the help of certain inter-relations between certain elements. There exist certain laws for nature, based on which every structure constructed must perform. Scientific Dimensions for Bridge Construction This is considered as an initial step towards the planning of structures, that would finally bring up with a project that would be advantageous to the community in all aspects. There are three dimensions that are involved in the planning of any mega project like a bridge. Three Dimensions of Planning for Bridge Construction Detailed Project Report of Bridge Construction Planning Preliminary Engineering for Bridge Construction Reconnaissance Survey for Bridge Construction ![]() ![]() Traffic Assessment for Bridge Construction Different Stages of Planning in Bridge Construction. ![]()
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