Analytical Research On The Seismic Behavior Of Viscousdamper Concrete Frame

The project consist of Analysis and design of the hospital which is in 8 floor.First, in this building will analyze and design by brace(CBF), after that will be analyze and design by Damper(Passive type).Base isolation of large structures has proven to be an effective way to attenuate seismic excitation. However it can be costly, and can also involve major building modification. It is now possible to secure a comparable degree of earthquake mitigation with fluid viscous dampers located throughout a structure, without having to isolate the building. This paper describes several techniques for doing this, provides analytical back-up and describes several examples of the application of this technologyBase isolation is an effective way to protect large structures from earthquake damage. It is a costly approach, as the entire structure must be supported on elastomeric or sliding bearings. Viscous dampers distributed throughout an otherwise conventional structure can achieve the same result at significantly lower cost. This paper describes how to install viscous dampers in a structure.The next section of this paper describes fluid viscous damping, and shows how it works and how it can benefit a structure. A detailed description of a typical fluid viscous dampers comes after this, followed by a comparison of base isolation and fluidic damping as ways to reduce earthquake excitation of structures. Then comes a discussion of design and analysis techniques for fluid viscous dampers.In the civil engineering field, high capacity fluid viscous dampers, used extensively in military applications, have found commercial applications on buildings and bridges subjected to seismic and/or wind storm inputs. Because fluid damping technology was proven thoroughly reliable and robust through decades of Cold War usage, implementation on commercial structures has taken place very quickly.This presentation provides a brief overview of fluid damping technology with specific case studies being provided from four of more than eighty major buildings and bridges now equipped with fluid viscous dampers.