Parametric Study of ACI Seismic Design Provisions through Dynamic Analysis of a Reinforced Concrete Intermediate Moment Frame.

Abstract

Reinforced concrete moment-resisting frames are structural programs that work to withstand earthquake floor motions via ductile behavior. Their efficiency is main to hinder building crumple and loss of existence throughout a seismic occasion. Seismic building code provisions outline requirements for three classes of strengthened concrete moment-resisting frames: usual second frames, intermediate moment frames, and specific second frames. Large study has been conducted on the efficiency of certain moment-resisting frames for areas of high seismic endeavor such as California. More study is required on the efficiency of intermediate second frames for areas of average seismicity since the present code provisions are situated on past statement and experience. Adapting dynamic evaluation application and functions developed via the Pacific Earthquake Engineering study (PEER) team, a representative concrete intermediate moment frame used to be designed per code provisions and analyzed for targeted floor motions with a view to calculate the chance of give way. A parametric gain knowledge of is used to discover the have an impact on of changes in design traits and building code standards on the seismic response and chance of collapse, particularly the outcome of additional peak and the addition of a powerful column-susceptible beam ratio requirement. The outcome show that the IMF seismic design provisions in ACI 318-08 furnish desirable seismic performance centered on present assessment methodology as gravity design appeared to govern the system. Extra height did not negatively affect seismic efficiency, at the same time the addition of a powerful-column vulnerable-beam ratio did not enormously give a boost to outcome. It is the goal of this venture to add insight into the design provisions for intermediate moment frames and to make a contribution to the technical base for future standards.