Cyclic behavior of connection between footing and concrete-infilled composite PHC pile

Bang, Jae-Wook; Hyun, Jung Hwan; Lee, Bang Yeon; Kim, Seong Su

doi:10.12989/sem.2014.50.6.741

Cited by 10 publications

(3 citation statements)

References 8 publications

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“…Kang and Kim also investigated the effects of various foundation connection details on the impact performance of a steel column. The results demonstrated that the reinforcement plots had an effect in minimizing the damages [13]. Then there are probabilistic studies, which have recently gained favor.…”

Section: Introductionmentioning

confidence: 93%

Investigation of the Occurrence of Progressive Collapse in High-Rise Steel Buildings with Different Braced Configurations

Saberi¹,

Saberi²,

Sadeghi³

et al. 2021

Civil and Environmental Engineering Reports

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The progressive collapse phenomenon refers to a chain of damages in a structure where all or a large part of the structure is destroyed by an initial local collapse in it, which can lead to very disastrous results. Therefore, the prevention of progressive collapse has become a necessary action in the design and analysis of buildings and it is vital to investigate this topic more accurately. This study aims to present a proposed pattern in the configuration of braces at the height of a high-rise steel building for reducing the probability of progressive collapse. In this regard, the vertical displacement of 18-story structure with four scenarios of column removal and five concentric bracing patterns including V, Inverted V, X, discontinuous X-bracing at height, and a combination of Xbracing in the side spans and discontinuous X-bracing at height in the middle spans are investigated and compared. In this study, the Alternative Path Method (APM) is used based on the GSA guideline for the analysis of progressive collapse. The results of this research showed that the use of X-bracing in the side spans and discontinuous X-bracing in the middle spans in nonlinear static and dynamic analyses performed better in reducing the probability of progressive collapse than other bracing configurations. Finally, it is recommended to use discontinuous X-bracing at the height that would place the bracings in one direction and providing alternative paths for force transferring in the structure.

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Section: Introductionmentioning

confidence: 93%

Investigation of the Occurrence of Progressive Collapse in High-Rise Steel Buildings with Different Braced Configurations

Saberi¹,

Saberi²,

Sadeghi³

et al. 2021

Civil and Environmental Engineering Reports

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show abstract

“…The pile lateral resistance at the same depth decreases with an increase in the number of cycles [22][23][24]. Liu Jun-Wei et al found that the flexural stiffness of reinforced PHC piles was greater than that of conventional PHC piles, and the momentbearing capacity of reinforced piles was significantly higher than that of conventional piles by comparing the flexural performance of reinforced PHC piles with that of conventional PHC piles [25][26][27][28]. Mustafa Jafariet et al studied the bearing capacity of pipe piles at the end, and the results showed that the bearing capacity of pipe piles is close to the limit value, which is less than or at most equal to the end-bearing capacity of an embedded strip foundation of width equal to the pipe wall thickness.…”

Section: Introductionmentioning

confidence: 99%

Load-Bearing Characteristics of PHC Piles Constructed by the Inner Digging Method Based on Ultimate Load Testing and Numerical Simulation

Zhang

Wang³

et al. 2023

Applied Sciences

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This paper studies the load-bearing characteristics of two prestressed high-strength concrete (PHC) pipe piles constructed by the medium mid-digging and hammering methods. The ultimate load tests and numerical simulations of the pipe piles constructed by both methods were carried out to analyze the ultimate lateral resistance, and ultimate resistance performance characteristics of the two pipe piles and the influence of the wall thickness of the pipe piles on the bearing performance. The test results show that the pipe pile constructed by the middle inner digging method has a higher pile quality. The single pile bearing capacity of the pipe pile constructed by the middle inner digging method is 50% higher than that of the common hammering method. The enlarged part of the pile end has an obvious effect on improving the bearing capacity. The settlement of the pipe pile constructed by the middle inner digging method is smaller than that of the hammering method. The large diameter pipe pile constructed by the middle inner digging method usually shows characteristics of the end-bearing pile. The resistance of the pile end accounts for 40–50% of the top load. The numerical simulation results agree with the field test and are compared and discussed. The simulation results show that when the bearing capacity of the pile is provided by the pile side frictional resistance, the influence of the pile wall thickness on the bearing capacity is insignificant. When the top pile load is close to the bearing capacity of the pipe pile, the influence of the pipe pile wall thickness on the bearing capacity is greater.

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“…Park et al [25] suggested a newly optimized method of reinforcing joint of PHC pile and foundation plate, and the test results indicated that the reduction of rebar reinforcement compared to previous method would lead to cost saving in PHC pile construction. Bang et al [26] investigated the cyclic behavior and performance of the concrete infilled composite PHC (ICP) pile-footing connection; it indicated that the ICP pile-footing connection exhibited higher seismic and connection performance than the conventional PHC pile-footing connection. Bang et al [27] provided an experimental and analytical study on the reinforced large diameter pretensioned high-strength concrete pile which was reinforced with infilled concrete, longitudinal rebar, and transverse rebar to increase the flexural and shear strength of conventional large-diameter PHC pile.…”

Section: Introductionmentioning

confidence: 99%

Study on Seismic Performance of Improved High‐Strength Concrete Pipe‐Pile Cap Connection

Yang

Nan

2020

Advances in Materials Science and Engineering

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Four prestressed high-strength concrete pile- (PHC pile-) pile cap connections under low-cycle loading were tested to study the test phenomena, failure modes, hysteretic performance, ductility, and bearing capacity. The PHC piles were reinforced with steel fiber and deformed bars and CFRP. The tests results showed that the connections were damaged by bending. The concrete of the caps were squeezed to be crushed. The concrete of connection was crushed and formed a hinge joint that resulted in the connection rotating unrestricted, and the rotation capacity of connection increased. The PHC pile reinforced with steel fiber and deformed bars can improve the displacement ductility of the connections. The finite element software ABAQUS was used to simulate the nonlinear behavior of pile-cap connections. The prediction agreed relatively well with the experimental results. The stress and strain of specimens were studied. The connections should be designed with enough rotating capacity and make sure the cap will not be damaged by squeezing or prying due to the rotation of pile end.

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Cyclic behavior of connection between footing and concrete-infilled composite PHC pile

Cited by 10 publications

References 8 publications

Investigation of the Occurrence of Progressive Collapse in High-Rise Steel Buildings with Different Braced Configurations

Investigation of the Occurrence of Progressive Collapse in High-Rise Steel Buildings with Different Braced Configurations

Load-Bearing Characteristics of PHC Piles Constructed by the Inner Digging Method Based on Ultimate Load Testing and Numerical Simulation

Study on Seismic Performance of Improved High‐Strength Concrete Pipe‐Pile Cap Connection

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