Cyclic Behavior of Corroded Fuse-Type Dissipaters for Posttensioned Rocking Bridges

Andisheh, Kaveh; Liu, Royce; Palermo, Alessandro; Scott, Allan

doi:10.1061/(asce)be.1943-5592.0001197

Cited by 25 publications

(8 citation statements)

References 16 publications

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“…The results of experiments demonstrated that the column showed higher ductility and good fatigue performance. Considering the corrosion of EXDs, PSBCs with corroded external ED bars were tested by Andisheh et al (2018), who found that severe corrosion negatively affected the cyclic performance of the dissipaters. Moreover, aluminum steel bars were used by Guo et al (2016) to avoid corrosion during the service life.…”

Section: Precast Segmental Bridge Column With External Dissipators (E...mentioning

confidence: 99%

Review of experimental investigations on seismic performance of precast segmental bridge columns in seismic regions

Zhu

et al. 2023

Advances in Structural Engineering

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Due to the fast construction and low interference, precast segmental bridge columns have gained increasing attention for use in non-seismic regions. However, their applications in seismic areas remain scarce due to their ambiguous dynamic performance. To estimate the seismic performance of PSBCs, existing quasi-static cyclic tests and shaking table tests are gathered and reviewed in this study. According to the structural details and material property at the joints, the PSBCs are categorized as 11 types based on the connection type, namely grouted splice sleeve couplers (GSSCs), grouted corrugated duct connections (GCDCs), wet joint connections (WJCs), mechanical bar splice connections, socket connections (SCs), unbonded post-tensioned tendon connections (UPTCs), partial precast columns (PPCs), hybrid connections (HCs), high-strength steel bars (HSBs), high-performance concrete (HPC), and external dissipators (EXDs). Based on the experimental results, the failure reason of each connection types are discussed and the effective structural details are suggested. And also, the PSBCs are divided into those with ductile and resilient connections according to the damage levels, residual drift ratios, displacement ductility coefficients, equivalent viscous damping ratios and effective stiffness parameters. With the achievements in this research, the application of PSBCs is expected to be promoted in medium-to-high seismic regions.

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Section: Precast Segmental Bridge Column With External Dissipators (E...mentioning

confidence: 99%

Review of experimental investigations on seismic performance of precast segmental bridge columns in seismic regions

Zhu

et al. 2023

Advances in Structural Engineering

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“…Recently, several researchers have introduced additional components with the rocking connections to accelerate the construction process or to improve the seismic performance. These components include: external energy dissipation) ED) devices as shown in Figure 5(i), (j), and (k) (Andisheh et al, 2018; Chou and Chen, 2005; Marriotte et al, 2009; ElGawady and Sha’lan 2011; Marriotte et al, 2009), external ED devices with a pocket connection, in which the precast RC column is inserted into a pocket located in precast RC footing, as shown in Figure 5(d) (Currie et al, 2007), internal longitudinal ED bars, as shown in Figure 5(g) (Jia et al, 2020; Jia et al, 2022; Ou et al, 2010; Ou et al, 2018), internal ED bars and CIP grout, as shown in Figure 5(a) (White and Palermo, 2016), and internal ED bars with concrete/steel shear keys as shown in Figure 5(h) (Hung et al, 2017). In addition, Mehrsoroush and Saiidi (2016), Mehraein & Saiidi.…”

Section: Constructionmentioning

confidence: 99%

Precast bridge piers: Construction techniques, structural systems, and seismic response

Fahmy

Moussa

2022

Advances in Structural Engineering

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The aim of this paper is to make a comprehensive evaluation of existing works on precast bridge piers, considering several aspects including construction techniques, structural systems, and seismic response. The general classification of the construction techniques refers to five different construction systems, which can be fully precast (post-tensioned system, pre-tensioned system, non-prestressed system) or partially precast techniques (post-tensioned system, non-prestressed system). The details of columns, column-footing connection, and column-beam connection are carefully studied to provide a unified classification of the existing construction techniques. According to the available experimental research, the failure modes and seismic resisting mechanisms of the classified construction techniques are fully addressed. In the light of a new proposed mechanical model, the seismic response of 50 experimentally tested precast bridge piers (covering the five construction techniques) is evaluated to ensure the required resiliency under anticipated seismic hazards. The evaluation of the seismic response of the studied systems indicated that the fully precast post-tensioned system is a promising construction technique, which can ensure the resilience performance of bridge piers. Finally, performance levels of the five construction systems were extracted in view of the possibility to realize robust, redundant, and recoverable structure systems that can be a motivation for application in the construction of modern sustainable cities.

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“…Often, these conventional dissipators are left with significant damage aftermath of earthquakes and need to be replaced. However, the use of CSDs in that regard is advantageous since they are damage tolerant and are reusable dissipators. Corrosion free : Corrosion significantly degrades the dissipating energy capacity of commonly used conventional metallic dissipators 17 . Typically, the dissipators are installed externally to structural member and are exposed to corrosive environments.…”

Section: Confined Superelastic Dissipatormentioning

confidence: 99%

“…In addition, an analytical equation was proposed to find the force–displacement relationship of the dissipators, which showed good agreement with the experimental results. Andisheh et al 17 investigated the effect of corrosion on the cyclic and hysteretic properties of mild steel axial dissipators. They found that corrosion reduces energy‐dissipating capacity of the devices.…”

Section: Introductionmentioning

confidence: 99%

Characterization of shape memory alloy energy dissipators for earthquake‐resilient structures

Asfaw

Ozbulut

2021

Struct Control Health Monit

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Summary In this paper, a new shape memory alloy (SMA) damping device named confined superelastic dissipator (CSD) was examined. The proposed dissipator consists of a fused superelastic nickel‐titanium (NiTi) SMA bar as the functional kernel component encased in grout‐filled steel tube. The bar carries the axial load and dissipates energy through axial deformation while the steel tube and infill grout restrain the bar and precludes buckling in compression. First, theoretical derivations for the design of the buckling restraining system were discussed. Then, the hysteretic behavior of CSDs was investigated through cyclic quasistatic tests. A total of eight specimens were designed, fabricated, and tested. All specimens exhibited stable and flag‐shaped hysteretic behavior with excellent self‐centering characteristics. Response quantities of prime interest for earthquake engineering such as energy dissipation, equivalent viscous damping, and self‐centering capability were evaluated. The effect of geometric parameters such as fuse diameter and bar length on these parameters as well as failure mechanisms of CSDs was studied. Based on the experimental results and visual observations of failed specimens, specific recommendations were made to improve the performance of the CSDs.

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Cyclic Behavior of Corroded Fuse-Type Dissipaters for Posttensioned Rocking Bridges

Cited by 25 publications

References 16 publications

Review of experimental investigations on seismic performance of precast segmental bridge columns in seismic regions

Review of experimental investigations on seismic performance of precast segmental bridge columns in seismic regions

Precast bridge piers: Construction techniques, structural systems, and seismic response

Characterization of shape memory alloy energy dissipators for earthquake‐resilient structures

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