Shaking table tests and numerical analyses of an RC coupled wall structure with replaceable coupling beams

2018 ◽  
Vol 47 (9) ◽  
pp. 1882-1904 ◽  
Author(s):  
Xilin Lu ◽  
Cong Chen ◽  
Huanjun Jiang ◽  
Shanshan Wang
Keyword(s):  
Shaking Table ◽  
Numerical Analyses ◽  
Wall Structure ◽  
Shaking Table Tests ◽  
Coupling Beams ◽  
Coupled Wall

Shaking Table Tests With Large Test Specimens of Seismically Isolated FBR Plants: Part 2—Damage Test of Reinforced Concrete Wall Structure

2009 ◽  
Author(s):  
Satoru Inaba ◽  
Takuya Anabuki ◽  
Kazutaka Shirai ◽  
Shuichi Yabana ◽  
Seiji Kitamura
Keyword(s):  
Reinforced Concrete ◽  
Seismic Isolation ◽  
Shaking Table Test ◽  
Shaking Table ◽  
Wall Structure ◽  
Shaking Table Tests ◽  
Concrete Wall ◽  
Restoring Force ◽  
Seismically Isolated ◽  
Rubber Bearings

This paper describes the dynamic damage test of a reinforced concrete (RC) wall structure with seismic isolation sysytem. It has been expected that seismically isolated structures are damaged in sudden when the accelerations of the structures exceed a certain level by hardening of the rubber bearings. However, the response behavior and the damage mode have not been observed by experimental test yet. So, shaking table tests were carried out at “E-Defense”, equipping the world’s largest shaking table, located at Miki City, Hyogo prefecture, Japan. The specimen was composed of an upper structure of 600 ton by weight and six lead-rubber bearings (LRBs) of 505 mm in diameter which provide both stiffness and hysteretic damping. The upper structure consisted of a RC mass and four RC walls with counter weight. The RC wall structure was designed so that the damage of the RC wall occurred between the shear force at the hardening of the rubber bearings and that at their breaking. The dimensions of the RC wall were 1600 × 800 × 100 mm (B × H × t). The reinforcement ratios were 2.46% in vertical by D13 (deformed reinforcing bar, 13 mm in diameter) and 1.0% in horizontal by D10. The shaking table test was conducted consecutively by increasing the levels up to 225% of tentative design earthquake motion. Consequently, because of the increase of the structural response by the hardening of the rubber bearings, the damage of the wall structure with seismic isolation system suddenly happened. In addition, the preliminary finite element analysis simulated the test results fairly well, which were the restoring force characteristics, the crack patterns of the RC wall structure and such.

Recent Study on Seismic Performance and Response Control of Tall Buildings

2012 ◽  
Author(s):  
Xilin Lu ◽  
Huanjun Jiang
Keyword(s):  
Seismic Performance ◽  
Mainland China ◽  
Tall Buildings ◽  
Shaking Table ◽  
Wall Structure ◽  
Coupling Beams ◽  
Response Control ◽  
Rapid Economic Growth ◽  
Table Model ◽  
Performance Based Seismic Design

<p>As a result of rapid economic growth and urbanization, a huge amount of tall buildings have been constructed in Mainland China in the recent two decades. Tall buildings are the symbols of our industrialized societies and provide us more living and working spaces in the limited land. They have become one of the most important infrastructures in the renewal of our urban environment as well as the creation of new urban area throughout the world. However, tall buildings suffered serious damages during the past earthquakes. Some research and practice work of seismic performance and response control of tall buildings in Mainland China in recent years are introduced here, including the general methodologies for performance-based seismic design of tall buildings, shaking table model tests on complex tall buildings to evaluate the seismic performance of structures and accordingly revise the structural design, and a new type of earthquake resilient shear wall structure with replaceable coupling beams and replaceable foot parts.</p>

scholarly journals Seismic Response of Flat Ground and Slope Models through 1 g Shaking Table Tests and Numerical Analysis

2021 ◽  
Vol 11 (4) ◽  
pp. 1875
Author(s):  
Yong Jin ◽  
Hoyeon Kim ◽  
Daehyeon Kim ◽  
Yonghee Lee ◽  
Haksung Kim
Keyword(s):  
Numerical Analysis ◽  
Seismic Waves ◽  
Shaking Table Test ◽  
Time History ◽  
Shaking Table ◽  
Numerical Analyses ◽  
Shaking Table Tests ◽  
Shear Box ◽  
Laminar Shear ◽  
Flat Ground

In order to verify the reliability of numerical analysis, a series of 1 g shaking table tests for flat ground and slope were conducted using a laminar shear box subjected to different seismic waves. Firstly, numerical analyses, using the DEEPSOIL and ABAQUS software, were done to compare the results of flat ground experiments. After that, finite element analyses with ABAQUS were conducted to compare the results of slope experiments. For numerical analyses, considering the influence of the boundary, the concept of adjusted elastic modulus was proposed to improve the simulation results. Based on the analyses, it is found that in terms of acceleration-time history and spectral acceleration, the numerical analysis results are in good agreement with the experiment results. This implies that numerical analysis can capture the dynamic behavior of soil under 1 g shaking table test conditions.

Sign in / Sign up

Export Citation Format

Share Document