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contributor authorCarmine Galasso
contributor authorGiuseppe Maddaloni
contributor authorEdoardo Cosenza
date accessioned2017-05-08T22:06:14Z
date available2017-05-08T22:06:14Z
date copyrightJuly 2014
date issued2014
identifier other28164500.pdf
identifier urihttp://yetl.yabesh.ir/yetl/handle/yetl/71411
description abstractTo ensure an overall ductile structural behavior, the reinforcing steel used in the seismic design of reinforced concrete (RC) structures is governed by certain specific requirements given in many international codes, such as the Eurocodes and the recently released Italian Building Code (IBC). This study’s primary focus is the statistical analysis of reinforcing steel properties, based on data from over 600 material tests. The data sets considered include a wide range of reinforcing steel bars (from 12 to 26 mm) provided by different Italian industries and used for a large structure built in Naples (Southern Italy). The test results are analyzed to determine the appropriate cumulative distribution function for yield and ultimate strengths, as well as the ultimate deformation, and other statistical parameters of interest as defined in the codes. The comparison with previous tests confirms an improvement in the quality of materials, as reflected in reduced variability and increased bias factors, consistent with other investigators’ recent findings. Finally, this study investigates the flexural overstrength of RC beams designed according to the current IBC—consistent with Eurocodes—and the accuracy of code requirements in light of realistic material models both for concrete and reinforcing steel and of uncertainties associated with mechanical models, structural members geometry, and material properties (as obtained in this study for reinforcing steel). The obtained results show that code provisions do not seem conservative and provide a basis for an improved calibration of future editions of seismic design codes for buildings.
publisherAmerican Society of Civil Engineers
titleUncertainly Analysis of Flexural Overstrength for Capacity Design of RC Beams
typeJournal Paper
journal volume140
journal issue7
journal titleJournal of Structural Engineering
identifier doi10.1061/(ASCE)ST.1943-541X.0001024
treeJournal of Structural Engineering:;2014:;Volume ( 140 ):;issue: 007
contenttypeFulltext


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