Essay Example on Performance-based seismic engineering

The use of shear wall system which is among the conventional load bearing systems and proven to be economical in buildings up to 35 stories high it is very common in multi storied buildings in earthquake prone zones 8 Pushover analysis is a nonlinear static method described in Eurocode 8 2003 In this method lateral force thrust distribution is applied to the structure and monotonically increased Plot of the total base shear versus roof displacement is then obtained which indicates any premature failure or weakness which is termed as capacity curve 9 Software available to perform nonlinear static pushover analysis are ETABS SAP ADINA SC Push3D Extended Three Dimensional Buildings Systems ETABS a Structural Analysis finite element program that works with complex geometry and monitors deformation at all hinges to determine ultimate deformation It has built in defaults for ACI 318 material properties and ATC 40 and FEMA 273 hinge properties Also it has the capability for inputting any material or hinge property ETABS 9 7 deals with the buildings only 10 ETABS 9 7 have features of performing PBA by going through some simple steps 11 Statement of problem Bangladesh is one of the most densely populated countries in the world 

Three Dimensional Analysis of Building System ETABS Version 9 7 will be used for the analysis The analysis in ETABS 9 7 involves the following four steps includes modeling static analysis designing and pushover analysis Analytics of building model and accumulation of result Using ETABS buildings will be analyzed for three different cases This analyzation will be performed for both linear static method and pushover method with aid of ETABS After the analysis different structural performance parameter s values will be collected Comparative study A comparative study will be carried out based on the analysis result The focal point will be the best combination of criterions that shows a better performance in case of seismic loads and possess Discussion A good number of efforts were conducted to make structures safe and hazard proof Still this search is going on in both simplified and more complex way Out comes of this paper are expected to reflect a better view about designing and assessment of structures in hazard prone areas Also results will help in decision making in case of choosing building models and their possible behavior An overall contribution will result in a sustainable infrastructure development which is a key demand for the modern world