Seismic Performance of Various Piles Considering Soil–Pile Interaction under Lateral Cycle Loads for Integral Abutment Jointless Bridges (IAJBs)

Huang, Fuyun; Shan, Yulin; Javanmardi, Ahad; Luo, Xiaoye; Chen, Baochun

doi:10.3390/app10103406

Cited by 7 publications

(4 citation statements)

References 26 publications

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“…Due to its high processing complexity, the cost of analysis, "high sensitivity" to specific ground motions, and the necessity to specify the hysteretic behaviour of parts, nonlinear dynamic analysis-one of these two approaches-is less often utilized. "Nonlinear static pushover analysis" is therefore widely employed in the PBD method [93]. Several research has employed elastoplastic oscillators supported by soil springs to examine the impacts of SSI on the seismic response of SDOF ("Single-Degree-of-Freedom") structures.…”

Section: Ssi In Performance-based Designmentioning

confidence: 99%

The Effect of Soil-Structure Interaction (SSI) on Structural Stability and Sustainability of RC Structures

Krishnan,

Sivakumar

2024

Civil and Environmental Engineering Reports

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The issue of SSI involves how the ground or soil reacts to a building built on top of it. Both the character of the structure and the nature of the soil have an impact on the stresses that exist between them, which in turn affects how the structure and soil beneath it move. The issue is crucial, particularly in earthquake regions. The interaction between soil and structure is an extremely intriguing factor in increasing or reducing structural damage or movement. Structures sitting on deformable soil as opposed to strong soil will experience an increase in static settlement and a decrease in seismic harm. The engineer must take into account that the soil liquefaction problem occurs for soft ground in seismic areas. A reinforced concrete wall-frame dual framework's dynamic reaction to SSI has not been sufficiently studied and is infrequently taken into consideration in engineering practice. The structures’ seismic performance when SSI effects are taken into account is still unknown, and there are still some misconceptions about the SSI idea, especially regarding RC wall-frame dual systems. The simulation study of the soil beneath the foundations significantly impacts the framework's frequency response and dynamic properties. Therefore, the overall significance of SSI in the structural aspect and sustainability aspects will be reviewed in this research.

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Section: Ssi In Performance-based Designmentioning

confidence: 99%

The Effect of Soil-Structure Interaction (SSI) on Structural Stability and Sustainability of RC Structures

Krishnan,

Sivakumar

2024

Civil and Environmental Engineering Reports

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“…Based on the test results, it was found that the specimens SPPC01 and SPPC03 experienced a loss in capacity of 49% and 39%, respectively. According to the previous studies [6][7][8], both specimens can be classified as having "significant damage but not collapse," as evidenced by the fracture of the PC bars. Hence, it is suggested that…”

Section: The Damagementioning

confidence: 99%

“…Damage level V, on the other hand, requires significant repair efforts or even complete column replacement. Research on the seismic performance of different piles for bridges conducted by [7] proposed a similar five-level classifications of damage for concrete piles based on the AASHTO [8] guidelines.…”

Section: Introductionmentioning

confidence: 99%

Study of Repaired Spun Pile to Pile Cap Connections Containing Fractured Reinforcements Using FRP

Orientilize

2023

GEOMATE

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There is a need for a study on the seismic performance of foundations to facilitate the implementation of performance-based design for bottom structures in Indonesia. To address this need, two series of experimental studies were conducted specifically on spun pile-to-pile cap connections, which are commonly used in Indonesia. The objective of the study was to analyze the performance of these connections and their post-repair behavior. Two specimens were tested: one with an empty pile (SPPC01) and another with a concrete-filled pile (SPPC03). Despite the limited confinement of the piles, both specimens exhibited ductile behavior, achieving displacement ductility within the range of 3.0 to 6.0. The test found that the connections were capable of developing the inelastic stage of the prestressed bars. Both specimens experienced irreparable damage due to fractures in the bars. They were repaired using Fiber Reinforced Polymer (FRP) and retested. The specimens showed some differences in their behavior. SPPC01R exhibited rocking with uplift because the connection was merely embedded, while SPPC03R, which had sufficient embedment, experienced FRP fracture. Although the stiffness of the connections could not be fully restored, the repaired specimens demonstrated a strength recovery of 71% and 86% compared to the original specimens and were able to reach 87% of the design strength. Additionally, they exhibited ductile behavior with ductility ranging from 3.43 to 6.9. To conclude, the typical spun pile connections in Indonesia show ductile behavior. For optimal repairability, it is advised to fill the pile with reinforced concrete, particularly in the connection area.

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“…A pretensioned prestressed high strength concrete pipe is called a PHC pile for short [1][2][3][4]. Its bearing capacity includes vertical bearing capacity, horizontal bearing capacity and seismic bearing capacity [5][6][7][8][9][10][11][12]. A single pile static load test is currently the most reliable method for a quality inspection of pile foundation engineering, and it is also a method that can measure the relationship between pile-soil stress and strain, and the results can be used as the basis for pile foundation engineering design [13].…”

Section: Introductionmentioning

confidence: 99%

Field Test Study on the Bearing Capacity of Extra-Long PHC Pipe Piles under Dynamic and Static Loads

Xiao¹,

Liu²,

Zhou³

et al. 2023

Sustainability

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Pretensioned prestressed high strength concrete (PHC) pipe piles are widely used in various engineering foundations, which have the advantages of high single pile bearing capacity, strong adaptability to geological conditions and high degree of construction mechanization. In order to study the vertical compressive bearing performance and settlement characteristics of ultra-long PHC pipe piles, high strain dynamic detections and static load tests were carried out on four PHC piles with a diameter of 0.9 m on site. It can be seen from the field test that the bearing capacity of the prefabricated pipe piles was time-dependent. By the end of the dynamic test, the bearing capacity of each test pile increased by 27% to 66%. The static load test also verified the rationality of the value of the restitution coefficient. Therefore, the final bearing capacity of the pile foundation can be predicted by using the high strain initial driving results and the restitution coefficient, which can reduce the repeated driving process, effectively save the cost and improve the engineering efficiency. Under 2.1 times the design load, the change range of the pile concrete modulus is from 37.5 GPa to 52 GPa, the change range of the pile side friction resistance is from 0 kPa to 97 kPa and the change range of the pile end to pile bottom load ratio is from 0% to 7.54%. During the test, the shaft friction and end bearing of the lower part of the piles were not fully mobilized. The shaft friction resistance, the end resistance and the movement behavior of the pile top and the end of the piles can provide parameter references for the subsequent design and construction of the piles.

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Seismic Performance of Various Piles Considering Soil–Pile Interaction under Lateral Cycle Loads for Integral Abutment Jointless Bridges (IAJBs)

Cited by 7 publications

References 26 publications

The Effect of Soil-Structure Interaction (SSI) on Structural Stability and Sustainability of RC Structures

The Effect of Soil-Structure Interaction (SSI) on Structural Stability and Sustainability of RC Structures

Study of Repaired Spun Pile to Pile Cap Connections Containing Fractured Reinforcements Using FRP

Field Test Study on the Bearing Capacity of Extra-Long PHC Pipe Piles under Dynamic and Static Loads

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