Study on uplift performance of stud connector in steel-concrete composite structures

Ju, Xiaochen; Zeng, Zhibin

doi:10.12989/scs.2015.18.5.1279

Cited by 5 publications

(4 citation statements)

References 14 publications

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“…The lateral load capacity of the SC wall piers was governed by the inplane flexural capacity of the wall cross section at the base. Ju and Zeng (2015) investigated the uplift performance of stud connectors in SC structures by testing and numerical methods. The results showed that the static ultimate bearing capacity, under which the stud connector was pulled out from the damaged reinforced concrete, was much larger than the cyclic ultimate bearing capacity, at which the weld joint between stud and steel plate fractured.…”

Section: Introductionmentioning

confidence: 99%

Performance Study of Sc Wall Based on Experiment and Parametric Analysis

He²,

Xiong

et al. 2020

Journal of Civil Engineering and Management

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Reverse cyclic lateral testing was undertaken to investigate the seismic behavior of 1/4 scale steel-plate concrete (SC) composite walls. The experimental program involved seven SC wall pier specimens. A new chamber structure is proposed, using steel diaphragms to connect the two steel faceplates to each other and to divide the SC wall pier into two parts. Conventional wall specimens failed mainly by tensile fracture of the concrete at the junction of the wall side and wall base, crushing of the concrete at the toe of the wall, or buckling of the steel faceplate. Tearing of the welded joints at the steel faceplates and steel diaphragm, buckling of steel, steel diaphragms being pulled out, tensile fracture and crushing of the concrete were the main failure modes of the chamber structure walls. A parametric numerical analysis in ABAQUS was developed to investigate the effects of the stiffening rib, steel web amount, material strength, shear-span ratio, and axial compression ratio on the seismic response of SC walls. The chamber structure of the SC wall piers can improve the peak load, ductility, and energy-dissipating capacity. The steel faceplate thickness and stiffening ribs can improve the behavior of SC wall piers.

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Section: Introductionmentioning

confidence: 99%

Performance Study of Sc Wall Based on Experiment and Parametric Analysis

He²,

Xiong

et al. 2020

Journal of Civil Engineering and Management

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“…Many types of connectors, e.g., headed stud connectors, have been widely used in the steel-concrete composite structure. Slipping and uplift behaviors of the stud connectors were investigated by researchers, e.g., Spremic et al [1], Han et al [2] Lin et al [3] and Ju [4]. Related connectors were also developed, tested and compared.…”

Section: Introductionmentioning

confidence: 99%

Developments and Behaviors of Slip-Released Novel Connectors in Steel-Concrete Composite Structures

2019

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Effective connection between steel beam and concrete slab is the key issue for steel-concrete composite structures. The slip-released connectors were developed to overcome cracking of the concrete in the hogging moment region of a continuous beam. A full-scale push-out test with two specimens was conducted to investigate the slipping behaviors of the connectors. Test results offered useful information on the slipping behaviors of the connectors in terms of load-slip behaviors and failure modes. FE models were developed for the slip-released connectors and the accuracy of the FE simulation was checked by the reported test results. Two concepts of the connectors, i.e., an improved version with foamed plastic blocks covered by protecting shell and the sliding connectors were developed to improve the structural performances of the slip-released connectors. Numerical simulations results showed that both concepts could effectively release the shear force within their slipping allowed limit and could achieve the performance requirement of releasing slip.

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“…There are some studies that investigated the thermal shock behavior of composites for elevated temperature. They presented experimental results for thermal shock resistance and flexural strength under different elevated temperatures [23–25]. During thermal shock test, they found changes in the Young's modulus could be ascribed mainly to matrix microcracking.…”

Section: Introductionmentioning

confidence: 99%

Mechanical characterization in laminated composite for cryogenic application

Lagoudas

Moon

2013

Polymer Composites

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Damage in cryogenic composite fuel tanks induced during manufacturing and advanced by thermomechanical cycling can accelerate leakage of the propellant. Whether the leakage exceeds tolerable levels depends on many factors, including pressure gradients, microcrack density, other damage such as delamination, connectivity of the cracks, residual stresses from manufacture, service-induced stresses from thermal and mechanical loads, and composite lay-up. This article is concerned with the creation and the detection of damage in cryogenic composites due to thermomechanical loading. The first part deals with cryocycling (cycling between two temperatures) test procedures, that were developed to understand the damage produced in cryogenic composite laminates under thermomechanical loading. An apparatus was developed to thermomechanically cycle coupon test specimens under different thermomechanical loadings. IM7/977-2 and IM7/5250-4 graphite/epoxy cross-ply [90 2 /0 2 ] S and angle-ply [0/-45/ 90/45/0/45090/-45/0] S laminates were tested using these systems. Ply-by-ply microcrack density was measured as a function of thermomechanical cycles. The second part of this article deals with effect of thermal gradients due to sudden exposure to a cryogenic temperature. The sudden exposure to cryogenic temperatures may have caused the microcracks, due to large temperature variations through the thickness and the resulting thermal stresses. In this work, an investigation of the sudden exposure to cryogenic temperatures is conducted experimentally with and without an insulating layer. POLYM. COMPOS., 34:607-615, 2013. ª 2013 Society of Plastics Engineers FIG. 4. Micro-crack density versus number of cycles for the [-45] ply (second from outer surface) of IM7/ 977-2 laminates with [0/-45/90/45/0/-45/90/45/0] S under uniaxial tension loading. FIG. 5. Micro-crack density versus number of cycles for the [90] ply of IM7/5250-4 laminates with [90 2 / 0 2 ] S under four-point bending.

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Study on uplift performance of stud connector in steel-concrete composite structures

Cited by 5 publications

References 14 publications

Performance Study of Sc Wall Based on Experiment and Parametric Analysis

Performance Study of Sc Wall Based on Experiment and Parametric Analysis

Developments and Behaviors of Slip-Released Novel Connectors in Steel-Concrete Composite Structures

Mechanical characterization in laminated composite for cryogenic application

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