Investigation on low-cycle fatigue performance of high-strength steel bars including the effect of inelastic buckling

Wu, Dianqi; Ding, Yang; Su, Junsheng; Li, Zhongxian; Zong, Liang

doi:10.1016/j.engstruct.2022.114974

Cited by 17 publications

(3 citation statements)

References 29 publications

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“…The increase in value of d l reduced the lateral displacement, as well as adherence slightly decreased; there was an evident influence on the buckling as a function of the relationship between the diameter and the length of the reinforcing steel, according to the works developed in this regard by Wu et al 2022, andWang et al 2022. The nominal d l analyzed #2, #3, #4, and #5.…”

Section: Longitudinal Reinforcing Steelmentioning

confidence: 97%

Displacement-based seismic performance of RC bridge pier

Taipe,

Fernandez-Davila

2023

ABEN

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To correctly manage the road infrastructure before and after an earthquake, it is necessary to estimate and even predict the seismic performance of the bridge. The quantification of the bridge's seismic performance response was present in terms of displacement and also based on previous research of reinforced concrete bridge pier models. The displacement did define from a force lateral-displacement response diagram corresponding to the capacity curve, calculated through a non-linear static pushover analysis of the reinforced concrete bridge pier model for each limit state, from intact state to collapse. Thus, six defined displacements correspond to the cracking displacement, the yielding displacement, the spalling displacement, the crushing displacement, the buckling displacement, and the fracturing displacement. The six defined limit states correspond to the cracking limit state, the yielding limit state, the spalling limit state, the crushing limit state, the buckling limit state, and the fracturing limit state. Also, parametric analysis did carry out to evaluate the influence, relative importance, and trend of the input parameters in response to the seismic performance of the reinforced concrete bridge pier model. Eleven input parameters did analyze as the concrete compressive strength, the yield stress of reinforcing steel, the concrete cover thickness, the pier aspect ratio, the configuration of the transverse reinforcement, the spacing of the transverse reinforcing steel, the transversal diameter of the transverse reinforcing steel, the longitudinal reinforcement ratio, the transversal diameter of the longitudinal reinforcing steel, the axial load ratio, and coefficient of subgrade reaction.

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Section: Longitudinal Reinforcing Steelmentioning

confidence: 97%

Displacement-based seismic performance of RC bridge pier

Taipe,

Fernandez-Davila

2023

ABEN

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“…It is interesting to note that observations from past earthquakes and experiments show that the buckling fracture of longitudinal rebar because of LCF is one of the common failure modes for flexural members (Aldabagh and Alam, 2021;Paul et al, 2014). Therefore, since the buckling and fracture of longitudinal rebars in RC elements lead to significant moment and strength degradation, many studies have been conducted on the effects of inelastic buckling on the LCF behavior of reinforcing steel (Aldabagh and Alam, 2021;Kashani et al, 2015aKashani et al, , 2015bTripathi et al, 2018;Wu et al, 2022).…”

Section: Introductionmentioning

confidence: 99%

Mechanical properties and constitutive models of shape memory alloy for structural engineering: A review

Mohammadgholipour

Billah

2023

Journal of Intelligent Material Systems and Structures

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Shape Memory Alloys (SMAs) are an innovative material with the unique features of superelasticity and energy dissipation capabilities under extreme loads. Due to their unique features, they have a great potential to be employed in structural engineering applications under different conditions. However, in order to effectively use SMAs in civil engineering structures and model their behaviors accurately in Finite Element (FE) packages, it is crucial for structural engineers to comprehend the mechanical properties and cyclic behavior of different SMA compositions under varying loading conditions. While previous studies have focused mainly on the cyclic behavior of SMAs under tensile loading, it is important to evaluate their fatigue behavior under cyclic tension-compression loading for seismic applications. This literature review aims to discuss the current gaps in the existing literature on the behavior of SMA rebars under low-cycle fatigue (LCF). The review provides a comprehensive overview of the primary characteristics of SMAs, summarizes the mechanical properties of SMAs presented in the literature and the parameters that affect them, and critically evaluates the effects of cyclic loading and LCF on SMAs. The review also provides a summary of the different constitutive models of SMAs and compares their advantages and limitations, which helps structural engineers to employ an appropriate constitutive model for predicting the accurate behavior of SMAs in FE software.

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“…The steel bars are subjected to a high-strain, low-cycle repeated load, causing the reinforcements to fracture within 100–200 fatigue cycles [21]. Wu et al [22] studied the buckling and low-cycle fatigue performance of a high-strength steel bar (HSSB, HTRB600) and compared them with those of a normal steel bar (NSB, HRB400E). The test results indicated that the HTRB600 steel bars exhibited lower tensile ductility and more severe post-buckling softening and pinching effects than the HRB400E steel bars.…”

Section: Introductionmentioning

confidence: 99%

Low-cycle fatigue mashing behaviours of HTRB630 high-strength steel exposed to high temperatures

Gao,

Zhuang,

Zuo

et al. 2023

Materials Science and Technology

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The tensile test and low-cycle fatigue test of HTRB630 high-strength steel bars after high-temperature exposure were investigated. Based on the plastic strain energy density theory of mashing behaviours, the values of parameters K and n in the Ramberg–Osgood stress–strain relationship were obtained. The Coffin–Manson model was modified for further modelling of specimens exposed to different temperatures. A fitted formula for the relationship between the plastic strain energy density and fatigue life of HTRB630 high-strength steel bar specimens was established. The parameters obtained in this study can provide a reference for further investigation of the seismic performance of HTRB630 steel bars reinforced concrete structures after exposure to high temperatures.

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Investigation on low-cycle fatigue performance of high-strength steel bars including the effect of inelastic buckling

Cited by 17 publications

References 29 publications

Displacement-based seismic performance of RC bridge pier

Displacement-based seismic performance of RC bridge pier

Mechanical properties and constitutive models of shape memory alloy for structural engineering: A review

Low-cycle fatigue mashing behaviours of HTRB630 high-strength steel exposed to high temperatures

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