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Journals / Turkish Journal of Civil Engineering / 2023 / Cilt: 34 Sayı: 4

Investigation of Pounding between Two Adjacent Building Models with Experimental Methods

Çağla ŞEKERCİ
Erdem DAMCI
Pages
1–26
Publication Date
2023-07-01
DOI
—
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

The study shows that when the coefficient of restitution is taken as 0.2 or 0.4, and the ratio of spring stiffness to shear stiffness (ks/k) is 1 or 5, reasonable results in numerical earthquake simulations can be obtained.

📌 3 Key Takeaways

🎯
Objective & Hypothesis:This study investigates the pounding phenomenon by shaking table experiments on two scaled building models.
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Key Findings & Data:Representing the situation where the seismic gap is insufficient, two building models are adjacently positioned on the shaking table, and pounding was investigated for harmonic and strong ground motion excitations.
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Conclusion & Impact:The study shows that when the coefficient of restitution is taken as 0.2 or 0.4, and the ratio of spring stiffness to shear stiffness (ks/k) is 1 or 5, reasonable results in numerical earthquake simulations can be obtained.
🔬Design:Modeling & Simulation
📍Scope:Comprehensive Sample
⚙️Variables:Pounding · Kelvin-Voigt model · image-processing

Abstract

This study investigates the pounding phenomenon by shaking table experiments on two scaled building models. Representing the situation where the seismic gap is insufficient, two building models are adjacently positioned on the shaking table, and pounding was investigated for harmonic and strong ground motion excitations. Displacement and acceleration responses were obtained to observe the pounding effect experimentally from video and accelerometer recordings, respectively. The Kelvin-Voigt Model consisting of spring and damper was used for numerical pounding analysis. The most critical parameters of the Kelvin–Voigt model, which are the spring stiffness (ks) and the damping, are calculated according to the coefficient of restitution (r) and were investigated and compared with harmonic experimental results. The obtained parameters, compatible with the harmonic experiments, were used to examine structural behavior under earthquake effect for the case where the building models are positioned for an insufficient seismic gap. For comparison, numerous numerical simulations were realized using different spring stiffnesses and coefficients of restitution. The study shows that when the coefficient of restitution is taken as 0.2 or 0.4, and the ratio of spring stiffness to shear stiffness (ks/k) is 1 or 5, reasonable results in numerical earthquake simulations can be obtained.

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Cite This Article

ŞEKERCİ, Ç., DAMCI, E. (2023). Investigation of Pounding between Two Adjacent Building Models with Experimental Methods. Turkish Journal of Civil Engineering, Cilt: 34 Sayı: 4, 1–26. https://ajindex.com/articles/959007

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References (4)

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