03173nas a2200277 a 450000500170000000800410001703500150005810000200007324500700009326000670016330000240023049000270025450001700028150200590045152019450051065000260245565000160248165000300249770000360252770000350256370000470259870000490264571000770269481000590277185600650283020260817172101.0220211 2020    th uu m rtt   0|  a1eng    a.b123791531 aSapkota, Ashish10aCalibration of structural models using measured building response  aPathum Thani, Thailand :bAsian Institute of Technology,c2020  a179 leaves :bill. 1 aThesis ;vno. ST-20-17  aA thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering in Structural Engineering, School of Engineering and Technology  aThesis (M. Eng.) - Asian Institute of Technology, 2020  aThis thesis describes the results of a manual model updating study conducted on a 50- storey reinforced concrete shear core building. The output-only modal identification  results obtained from ambient vibration measurements of the building were used to  update a finite element model of the structure in the first phase. During the second phase  of calibration, the earthquake data obtained from the seismic accelerograph were used.  There was a good match between peak joint acceleration obtained by numerical FE model and those experimentally measured at three floors where the seismic  accelerograph were placed. The match demonstrated the accuracy of the finite element  model to predict realistic dynamic behavior of the building under various seismic  forces.  The initial model of the structure was developed from the information provided in the  design documentation of the building. Different parameters of the model were then  modified, after sensitivity study, using a manual process to improve the correlation  between measured and calculated modal parameters. As a type of nonstructural  component, infill walls play a significant role in seismic behavior of high-rise buildings  which is generally ignored during the analysis. The analysis results revealed that the  structural performance under small/large earthquake records were both strengthened by  infill walls, and the contribution of infill walls should be considered for better accuracy  in the design process. A five step and a four-step process for calibrating a model is  presented for first phase and second phase of calibration. The model obtained after  second phase of calibration should be adopted as a final calibrated model.  Structural evaluations (global and local responses) between the calibrated and  uncalibrated model both are within the acceptable limits. However, calibrated model is  suggested to be taken into consideration for future analysis.  0aFinite element method 0aCalibrating 0aStructural framesxModels0 aPunchet Thammarak,eChairperson1 aAnwar, Naveed,eCo-Chairperson0 aPennung Warnitchai,eExamination Committee0 aThanakorn Pheeraphan,eExamination Committee2 aHis Majesty the King{u2019}s Scholarships (Thailand),eScholarship Donor2 aAsian Institute of Technology.tThesis ;vno. ST-20-17  3Full-Textuhttp://203.159.5.9/ait-thesis/detail.php?q=B15740