Development of a New Method of Realtime Residual Seismic Capacity Evaluation of Existing Structures With Accelerometers

In this paper, a simple evaluation method of soil stiffness is presented based on the curve (which reflects the relationship between the rotation angle and the rotation moment of the foundation). Earthquake response records were used to obtain curves. This study analyzed the curves of the researched Steel-Reinforced Concrete (SRC) building (with an embedment spread foundation) for seven strong earthquakes that occurred in Japan between 1998 and 2012. And the real measurements of rocking stiffness of the soil were calculated using maximum peak response points of the curves. The results demonstrated that for the researched SRC building under the condition of strong earthquakes, the calculation method of response and limit strength (published by the Architecture Institute of Japan) underestimated the rocking stiffness of the soil; and the method using vertical ground reaction force coefficient estimated in the JARA (Japan Road Association) standard cannot reflect the real measurements of the rocking stiffness of the soil.

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“…The superstructure of the measurement building (Figure 1 Figure 1 (b)) can be calculated using the method in the reference papers 7,8) .…”

Section: The Proposed Methods For Curve 21 Curvementioning

confidence: 99%

“…Nowadays, a new seismic evaluation method based on the real-time residual seismic performance curve ( curve) is used to evaluate the seismic performance of superstructures [5][6][7] .…”

Section: Introductionmentioning

confidence: 99%

Evaluation of Soil Stiffness Using Performance Curves of an Eight-Story Steel-Reinforced Concrete Building With Embedded Spread Foundation

Liu

Nakamura

Kashima

et al. 2015

Nihon Kenchiku Gakkai Kozokei Ronbunshu

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Analytical Study on the Extrapolation Method for the Performance Curves of R/C Structures Derived From Recorded Accelerations

Kusunoki

2019

Nihon Kenchiku Gakkai Kozokei Ronbunshu

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Experimental Study on the Damage Classification Method With the Performance Curves of R/C Structures Derived From Recorded Accelerations

Kusunoki

2020

Transactions of AIJ

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In order to replace the rapid inspection method on visual observation by the instrumentation, the damage classification with the performance curve derived from the measured accelerations is proposed. There are two damage classification methods, which are for the conventional damage classification method and the method for earthquake insurance. In order to verify the validity of the proposed classification method with sensors, a 3-story full-scale R/C specimen was shaken on the E-Defense to confirm the validity of the proposed method. The result said that the evaluated damage classes according to the three methods agreed well reasonably.

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Development of a New Method of Realtime Residual Seismic Capacity Evaluation of Existing Structures With Accelerometers

Cited by 4 publications

References 0 publications

Evaluation of Soil Stiffness Using Performance Curves of an Eight-Story Steel-Reinforced Concrete Building With Embedded Spread Foundation

Evaluation of Soil Stiffness Using Performance Curves of an Eight-Story Steel-Reinforced Concrete Building With Embedded Spread Foundation

Analytical Study on the Extrapolation Method for the Performance Curves of R/C Structures Derived From Recorded Accelerations

Experimental Study on the Damage Classification Method With the Performance Curves of R/C Structures Derived From Recorded Accelerations

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