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Open AccessArticle

Development of a Refined Analysis Method for Earthquake-Induced Pounding between Adjacent RC Frame Structures

by Yongqiang Yang 1,2 and Shuang Li 3,*
1
Institute of Engineering Mechanics, China Earthquake Administration, Harbin 150080, China
2
Key Laboratory of Earthquake Engineering and Engineering Vibration, China Earthquake Administration, Harbin 150080, China
3
Key Lab of Structures Dynamic Behavior and Control of the Ministry of Education, Key Lab of Smart Prevention and Mitigation of Civil Engineering Disasters of the Ministry of Industry and Information Technology, Harbin Institute of Technology, Harbin 150090, China
*
Author to whom correspondence should be addressed.
Sustainability 2019, 11(18), 4928; https://doi.org/10.3390/su11184928
Received: 3 August 2019 / Revised: 29 August 2019 / Accepted: 3 September 2019 / Published: 9 September 2019
Pounding of two adjacent structures is one of the factors that cause damage and hinder sustainable use of reinforced concrete (RC) frame structures under strong ground motion excitations. This study developed a pounding analysis method with a refined beam-column element in order to solve the pounding problem between two RC frame structures. The analysis method combines the fiber beam-column element model with the element sections discretized into concrete and longitudinal rebar fibers, the Hertz-damp contact element model to describe the pounding between beam-column elements, and the method to integrate the pounding force into the system dynamic equilibrium equation. The pounding can be considered either at the level between the story slab to slab or at the level between story slab to mid-column. The application of the proposed method in pounding analyses to provide a rational seismic separation gap between two adjacent RC frame structures is finally conducted to increase their safety and sustainability under strong earthquakes. View Full-Text
Keywords: earthquake; pounding; adjacent frames; beam-column element; rational separation gap earthquake; pounding; adjacent frames; beam-column element; rational separation gap
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MDPI and ACS Style

Yang, Y.; Li, S. Development of a Refined Analysis Method for Earthquake-Induced Pounding between Adjacent RC Frame Structures. Sustainability 2019, 11, 4928.

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