TAILIEUCHUNG - Optimum seismic design of short to mid rise steel moment resisting frames based on uniform deformation theory

In current work, an effective method is introduced for the optimal cross-section distribution in steel moment resisting frames under severe earthquakes by means of uniform deformation theory and adaptive method. The main goal is to distribute the construction material (weight) along the height of the structure in such a way that the lowest damage due to earthquakes is obtained. In adaptive method, materials gradually transfer from strong parts to weak parts by an iteration procedure during nonlinear time history analysis. | JSEE Vol. 19, No. 1, 2017 This is an extended version of the paper presented in SEE7 conference, peer-reviewed again and approved by the JSEE editorial board. Optimum Seismic Design of Short to Mid-Rise Steel Moment Resisting Frames Based on Uniform Deformation Theory Hassan Moghaddam1 and Seyed Mojtaba Hosseini Gelekolai 2* 1. Professor, Department of Civil Engineering, Sharif University of Technology, Tehran, Iran 2. . Candidate, Department of Civil Engineering, Sharif University of Technology, Tehran, Iran, *Corresponding Author; email: hosseini@ Received: 07/11/2015 Accepted: 20/07/2016 ABSTRACT Keywords: Seismic design; Optimization; Uniform deformation theory; Steel moment resisting frames; Nonlinear dynamic analysis In current work, an effective method is introduced for the optimal cross-section distribution in steel moment resisting frames under severe earthquakes by means of uniform deformation theory and adaptive method. The main goal is to distribute the construction material (weight) along the height of the structure in such a way that the lowest damage due to earthquakes is obtained. In adaptive method, materials gradually transfer from strong parts to weak parts by an iteration procedure during nonlinear time history analysis. In order to demonstrate the effectiveness of the proposed method, the optimal distribution of the cross-sections is obtained for 5 and 10 story steel moment resisting frames. In order to reduce the sensitivity of the optimal response to discrete cross-sections, continuous crosssections fitted between DIN-Standard cross-sections have been used in order to achieve its optimal state. The steel moment resisting frames are optimized under five natural earthquakes. Results indicate that the optimal frames designed by this method show not only a more uniform deformation under earthquakes, but also less weight in comparison to the original structure designed according to the ASCE07-10 code. The reduction in .

• Vật lý
• Evaluation of earthquake potential
• Optimum seismic design
• Short to mid rise steel moment resisting frames
• Uniform deformation theory
• Distribute the construction material
• Nonlinear time history analysis
• Evaluation of earthquake potential in the zagros region
• The zagros region
• Seismic strain and seismicityparameters
• Zagros indicating less frequent moderate
• Dependence of ductility response spectra
• The seismogenic depth from finite element earthquake rupture simulations
• Finite element earthquake rupture simulations
• A particular earthquake
• The strength and elastic analysis
• Grid based probabilistic earthquake forecast for Iran
• Grid based probabilistic earthquake forecast
• Probabilistic earthquake forecast
• Spatial temporal Poisson process
• Empirical relationships based on the P wave envelop
• The P wave envelop
• Distance and magnitude estimation
• Earthquake early warning in Iran
• Earthquake Early Warning
• Estimation of the frequency dependent shear wave attenuation
• Acceleration spectra of the Ahar
• Varzeghan earthquake 2012
• The frequency dependent shear wave attenuation
• High relative risk
• Optimum seismic design of tuned story mass damper
• Multi objective genetic algorithm
• Tuned story mass damper
• The noncontrolled system
• Adaptive fuzzy C mean clustering
• Ground motion prediction equations
• The C mean clustering algorithm
• Next generation attenuation
• Fragility curves for vulnerability assessment
• Steel moment resisting frames adjacent to slopes
• The probability damage growth rate
• The damage probability
• Performance assessment of steel isolated structures considering heating
• Lead core based on seismic risk
• Steel isolated structures considering heating
• Near field earthquakes
• Conventional 4 story steel special moment resisting frame
• Analytical study of interior rigid bents arrangement
• Seismic response of tall buildings
• Interior rigid bents arrangement
• Tube type lateral load resistant framed systems
• Separated framed tube based skeletons
• Collapse safety margin in iranian seismic design code
• Case studies of RC frame structuress
• Iranian seismic design code
• RC frame structuress
• The effects of soil structure interaction
• Seismic response of steel moment resisting frames
• Steel moment resisting frames
• The SSI effect
• Trapezoidal shaped hills induced Bystrong ground motion records
• Rigorously examine the influences
• Two dimensional analyses
• The trapezoidal shaped hills