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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 국제구조공학회 Smart Structures and Systems, An International Journal Smart Structures and Systems, An International Journal Vol.24 No.1
- 발행연도
- 2019.1
- 수록면
- 127 - 139 (13page)
이용수
초록· 키워드
오류제보하기
Residual drifts after an earthquake can incur huge repair costs and might need to replace the infrastructure because of its non-reparability. Proper functioning of bridges is also essential in the aftermath of an earthquake. In order to mitigate pounding and unseating damage of bridges subjected to earthquakes, a self-adaptive Ni-Ti shape memory alloy (SMA)-cable-based frictional sliding bearing (SMAFSB) is proposed considering self-adaptive centering, high energy dissipation, better fatigue, and corrosion resistance from SMA-cable component. The developed novel bearing is associated with the properties of modularity, replaceability, and earthquake isolation capacity, which could reduce the repair time and increase the resilience of highway bridges. To evaluate the super-elasticity of the SMA-cable, pseudo-static tests and numerical simulation on the SMA-cable specimens with a diameter of 7 mm are conducted and one dimensional (1D) constitutive hysteretic model of the SMAFSB is developed considering the effects of gap, self-centering, and high energy dissipation. Two types of the SMAFSB (i.e., movable and fixed SMAFSBs) are applied to a two-span continuous reinforced concrete (RC) bridge. The seismic vulnerabilities of the RC bridge, utilizing movable SMAFSB with the constant gap size of 60 mm and the fixed SMAFSBs with different gap sizes (e.g., 0, 30, and 60 mm), are assessed at component and system levels, respectively. It can be observed that the fixed SMAFSB with a gap of 30 mm gained the most retrofitting effect among the three cases.
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참고문헌 (37)
참고문헌 신청
M. Shahria Alam / 2012 / Seismic fragility assessment of SMA-bar restrained multi-span continuous highway bridge isolated by different laminated rubber bearings in medium to strong seismic risk zones / Bulletin of Earthquake Engineering 10(6):1885~1909
Jack W. Baker / 2005 / A vector-valued ground motion intensity measure consisting of spectral acceleration and epsilon / Earthquake Engineering & Structural Dynamics 34(10):1193~1217
Michele Barbato / 2006 / Finite element structural response sensitivity and reliability analyses using smooth versus non-smooth material constitutive models / International Journal of Reliability and Safety 1(1/2):3~39
A.R. Bhuiyan / 2009 / A rheology model of high damping rubber bearings for seismic analysis: Identification of nonlinear viscosity / International Journal of Solids and Structures 46(7-8):1778~1792
L.C. Brinson / 2016 / One-Dimensional Constitutive Behavior of Shape Memory Alloys: Thermomechanical Derivation with Non-Constant Material Functions and Redefined Martensite Internal Variable / Journal of Intelligent Material Systems and Structures 4(2):229~242
Jack W. Baker / 2005 / A vector-valued ground motion intensity measure consisting of spectral acceleration and epsilon / Earthquake Engineering & Structural Dynamics 34(10):1193~1217
Michele Barbato / 2006 / Finite element structural response sensitivity and reliability analyses using smooth versus non-smooth material constitutive models / International Journal of Reliability and Safety 1(1/2):3~39
A.R. Bhuiyan / 2009 / A rheology model of high damping rubber bearings for seismic analysis: Identification of nonlinear viscosity / International Journal of Solids and Structures 46(7-8):1778~1792
L.C. Brinson / 2016 / One-Dimensional Constitutive Behavior of Shape Memory Alloys: Thermomechanical Derivation with Non-Constant Material Functions and Redefined Martensite Internal Variable / Journal of Intelligent Material Systems and Structures 4(2):229~242
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