Displacement-Based Seismic Assessment of Low-Height Confined Masonry Buildings

2009 ◽  
Vol 25 (2) ◽  
pp. 439-464 ◽  
Author(s):  
Amador Terán-Gilmore ◽  
Oscar Zuñiga-Cuevas ◽  
Jorge Ruiz-García
Keyword(s):  
Pushover Analysis ◽  
Relative Strength ◽  
Seismic Assessment ◽  
Shaking Table ◽  
Evaluation Procedure ◽  
Masonry Buildings ◽  
Confined Masonry ◽  
Shaking Table Testing ◽  
Displacement Based ◽  
Global And Local

This paper presents a practical displacement-based evaluation procedure for the seismic assessment of low-height regular confined masonry buildings. First, the so-called Coefficient Method established in several FEMA documents is adapted to obtain rapid estimates of inelastic roof displacement demands for regular confined masonry buildings. For that purpose, a statistical study of constant relative strength inelastic displacement ratios of single-degree-of-freedom systems representing confined masonry buildings is carried out. Second, a nonlinear simplified model is introduced to perform pushover analysis of regular confined masonry buildings whose global and local behavior is dominated by shear deformations in the masonry walls. The model, which can be applied through the use of commercial software, can be used to establish the capacity curve of such buildings. Finally, the evaluation procedure is applied to a three-story building tested at a shaking table testing facility.

Experimental investigation on the seismic performance of masonry buildings using shaking table testing

2012 ◽  
Vol 11 (4) ◽  
pp. 1157-1190 ◽  
Author(s):  
Paulo B. Lourenço ◽  
Leonardo Avila ◽  
Graça Vasconcelos ◽  
J.Pedro Pedro Alves ◽  
Nuno Mendes ◽  
...  
Keyword(s):  
Experimental Investigation ◽  
Seismic Performance ◽  
Shaking Table ◽  
Masonry Buildings ◽  
Shaking Table Testing

Seismic Evaluation of Low-Rise Reinforced Masonry Buildings with Flexible Diaphragms: II. Analytical Modeling

2004 ◽  
Vol 20 (3) ◽  
pp. 803-824 ◽  
Author(s):  
Gregory L. Cohen ◽  
Richard E. Klingner ◽  
John R. Hayes ◽  
Steven C. Sweeney
Keyword(s):  
Analytical Modeling ◽  
Companion Paper ◽  
Design Tool ◽  
Shaking Table ◽  
Masonry Buildings ◽  
Seismic Evaluation ◽  
Static Testing ◽  
Reinforced Masonry ◽  
Shaking Table Testing ◽  
Flexible Diaphragms

This and a companion paper compare the results from shaking-table testing, quasi-static testing, and analytical predictions to provide a coherent description of the seismic response of low-rise reinforced masonry buildings with flexible roof diaphragms. This paper presents the development, implementation, and results of coordinated analytical modeling intended to corroborate and extend the results of experimental work discussed in a companion paper, Part I: Seismic and Quasi-Static Testing, and more important, examine the efficacy and accuracy of different analytical modeling approaches. Specifically, linear elastic finite-element models, simplified two-degree-of-freedom models, and nonlinear lumped-parameter models are created and all agree well with measured responses. Based on these, a simple design tool for the analysis of low-rise reinforced masonry buildings with flexible diaphragms is developed and verified.

Seismic Evaluation of Low-Rise Reinforced Masonry Buildings with Flexible Diaphragms: I. Seismic and Quasi-Static Testing

2004 ◽  
Vol 20 (3) ◽  
pp. 779-801 ◽  
Author(s):  
Gregory L. Cohen ◽  
Richard E. Klingner ◽  
John R. Hayes ◽  
Steven C. Sweeney
Keyword(s):  
Experimental Testing ◽  
Shear Walls ◽  
The United States ◽  
Companion Paper ◽  
Degree Of Freedom ◽  
Shaking Table ◽  
Masonry Buildings ◽  
Static Testing ◽  
Reinforced Masonry ◽  
Shaking Table Testing

This and a companion paper compare the results from shaking-table testing, quasi-static testing, and analytical predictions, to provide a coherent description of the seismic response of low-rise reinforced masonry buildings with flexible roof diaphragms. Two half-scale, low-rise reinforced masonry buildings with flexible roof diaphragms are subjected to earthquake ground motions on the Tri-axial Earthquake and Shock Simulator at the United States Army Construction Engineering Research Laboratory, Engineer Research and Development Center. Following the shaking-table tests, diaphragms and top four courses of attached masonry walls are salvaged from the half-scale structures and tested quasi-statically in their own plane. In contrast to what is usually assumed in design, the half-scale specimens do not behave as systems with a single degree of freedom associated with the in-plane response of the shear walls, but rather a system with a dominant degree of freedom associated with the in-plane response of the roof diaphragm. A new index describing the potential for diaphragm damage is introduced, the diaphragm drift ratio. A companion paper, Part II: Analytical Modeling, presents analytical work intended to corroborate and extend results from experimental testing.

Failure mechanism of steel arch trusses: Shaking table testing and FEM analysis

2015 ◽  
Vol 82 ◽  
pp. 186-198 ◽  
Author(s):  
Qing-Hua Han ◽  
Ying Xu ◽  
Yan Lu ◽  
Jie Xu ◽  
Qiu-Hong Zhao
Keyword(s):  
Failure Mechanism ◽  
Fem Analysis ◽  
Shaking Table ◽  
Shaking Table Testing

scholarly journals Performance of the CGS six DOF Shaking Table on the Harmonic Signal Reproduction

2017 ◽  
Vol 62 (1) ◽  
pp. 102-111
Author(s):  
Abdelhalim Airouche ◽  
Hassan Aknouche ◽  
Hakim Bechtoula ◽  
Nourredine Mezouer ◽  
Abderrahmane Kibboua
Keyword(s):  
Adaptive Control ◽  
Earthquake Engineering ◽  
Harmonic Signal ◽  
Shaking Table ◽  
Experimental Procedure ◽  
Signal Tracking ◽  
Engineering Research ◽  
Control Techniques ◽  
Shaking Table Testing ◽  
Six Dof

Shaking table testing continues to play an important role in earthquake engineering research. It has been recognized as a powerful testing method to evaluate structural components and systems under realistic dynamic loads. Although it represents a very attractive experimental procedure, many technical challenges, which require attention and consideration, still remain. High fidelity in signal reproduction is the focus of the work presented in this paper. The main objective of this paper is to investigate the capabilities of adaptive control techniques based on Amplitude Phase Control (APC) and Adaptive Harmonic Cancellation (AHC) on the harmonic signal tracking performance of the shaking table. A series of 232 sinusoidal command waveforms with various frequencies and amplitudes were conducted on the shaking table of the laboratory of the National Earthquake Engineering Applied Research Center (CGS, Algeria). Experimental results are reported and recommendations on the use of these adaptive control techniques are discussed.

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