Seismic Performance based Design of Reinforced Concrete Buildings using Nonlinear Pushover Analysis

In reinforced concrete buildings in case of a possible earthquake, the buildings slamp as they lost their horizontal stability because of hinging of column ends. The assumptions for plastic hinge lengths are present during project stage of reinforced concrete buildings. According to Turkish Earthquake Regulations, although plastic hinge length is determined to be 0.5h, it's known that plastic hinge length is determined via various formulas in some other regulations all over the world. In reinforced concrete columns, it's necessary to indicate the effect of plastic hinge length on the column behavior. For this purpose, pushover analysis of 5 column samples having different plastic hinge lengths was performed with non-linear analysis program. As a result of pushover analysis, situations of plastic hinges formed in columns and their load-displacement curves were determined. The graphs and the data were compared and the results were discussed.

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Seismic performance of precast reinforced concrete buildings with dowel pin connections

Journal of Building Engineering ◽

10.1016/j.jobe.2016.06.013 ◽

2016 ◽

Vol 7 ◽

pp. 224-238 ◽

Cited By ~ 38

Author(s):

F. Clementi ◽

A. Scalbi ◽

S. Lenci

Keyword(s):

Reinforced Concrete ◽

Seismic Performance ◽

Reinforced Concrete Buildings ◽

Concrete Buildings

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A New Method to Evaluate the Post-Earthquake Performance and Safety of Reinforced Concrete Structural Frame Systems

Infrastructures ◽

10.3390/infrastructures5020016 ◽

2020 ◽

Vol 5 (2) ◽

pp. 16

Author(s):

Foteini Konstandakopoulou ◽

George Hatzigeorgiou ◽

Konstantinos Evangelinos ◽

Thomas Tsalis ◽

Ioannis Nikolaou

Keyword(s):

Reinforced Concrete ◽

Seismic Performance ◽

Structural Parameters ◽

Permanent Deformation ◽

Nonlinear Behavior ◽

Building Structures ◽

Reinforced Concrete Buildings ◽

Concrete Buildings ◽

Residual Displacements ◽

Seismic Displacements

This study examines the relation between maximum seismic displacements and residual displacements for reinforced concrete building structures. In order to achieve a reliable relationship between these critical structural parameters for the seismic performance of concrete buildings, an extensive parametric study is conducted by examining the nonlinear behavior of numerous planar framed structures. In this work, dynamic inelastic analyses are executed to investigate the seismic behavior of two sets of frames. The first group consists of four planar frames which have been designed for seismic and vertical loads according to modern structural codes while the second group also consists of four frames, which have been designed for vertical loads only, in order to examine older structures that have been designed using codes with inadequate seismic provisions. These two sets of buildings are subjected to various earthquakes with different amplitudes in order to develop a large structural response databank. On the basis of this wide-ranging parametric investigation, after an appropriate statistical analysis, simple empirical expressions are proposed for a straightforward and efficient evaluation of maximum seismic displacements of reinforced concrete buildings structures from their permanent deformation. Permanent displacements can be measured in-situ after strong ground motions as a post-earthquake assessment. It can be concluded that the measure of permanent deformation can be efficiently used to estimate the post-seismic performance level of reinforced concrete buildings.

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