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title

SEISMIC RETROFIT OF DEFECTIVE EXTERIOR RC CEILING-COLUMN

Credit to Download: 1 | Page Numbers 8 | Abstract Views: 22
Year: 2019
COI code: SEE08_224
Paper Language: English

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Authors SEISMIC RETROFIT OF DEFECTIVE EXTERIOR RC CEILING-COLUMN

  Amirhoushang Akhaveissy - Associate Professor, Department of Civil Engineering, Faculty of Engineering, Razi University, Kermanshah, Iran
  Ali Permanoon - Ph.D. Student of structural engineering, Department of Civil Engineering, Faculty Engineering, Razi University, Kermanshah, Iran,
Roya Raeisi - Ph.D. Student of Structural Engineering, Department of Civil Engineering, Faculty Engineering, Bu-Ali Sina University, Hamedan,Iran

Abstract:

The present work investigates the seismic vulnerability of in-situ concrete column-ceiling connections. Improper implementation of beam-column and ceiling connections in in-situ reinforced concrete buildings are known as the most important weak points with the potential of failure in reinforced concrete moment frames subjected to seismic loading and hence the work presented herein investigates the performance of the imperfect concrete beam-column connection and provides a method with which to improve the behavior of the connection. To retrofit the said connection, steel plates in conjunction with bolts and straps are used. The analyzed connection is one of the connections of the building of a high school in the city of Kermanshah in Iran which has been inadequately implemented. In this study, different parameters such as the dimensions of the steel plate, the number and the different pre-stressing percentages of the bolts, configuration of the steel straps and the selection of the suitable pre-stressing percentage for the bolts are studied. It needs to be mentioned that all of the parameters used in the analyses have been obtained based upon the actual behavior of the material through tests such as the Schmidt hammer and core extraction for the concrete and tensile tests for the steel bars. Finally, based on the results from the load-displacement diagrams, the optimum design with high ductility and load bearing capacity is proposed.

Keywords:

Defective exterior ceiling-column, Finite element method, Seismic Retrofit, Brittle behaviour of RC joint,Core sample

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COI code: SEE08_224

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Akhaveissy, Amirhoushang; Ali Permanoon & Roya Raeisi, 2019, SEISMIC RETROFIT OF DEFECTIVE EXTERIOR RC CEILING-COLUMN, 8th International Conference on Seismology and Earthquake Engineering, تهران, پژوهشگاه بين‌المللي زلزله‌شناسي و مهندسي زلزله, https://www.civilica.com/Paper-SEE08-SEE08_224.htmlInside the text, wherever referred to or an achievement of this article is mentioned, after mentioning the article, inside the parental, the following specifications are written.
First Time: (Akhaveissy, Amirhoushang; Ali Permanoon & Roya Raeisi, 2019)
Second and more: (Akhaveissy; Permanoon & Raeisi, 2019)
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Type: state university
Paper No.: 7854
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