Parametric Push‐Out Analysis on Perfobond Rib with Headed Stud Mixed Shear Connector

Zheng, Shuangjie; Zhao, Chen; Liu, Yangqing

doi:10.1155/2019/5952319

Cited by 6 publications

(4 citation statements)

References 24 publications

(23 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Consequently, the effective bearing area of the concrete slab was reduced. Therefore, the shear bearing capacity of the specimen was decreased [9]. However, the flexible studs in LT-C could relieve the stress concentration of the rigid PBL to a certain extent to fully use the advantages of both the PBL and studs.…”

Section: Resultsmentioning

confidence: 99%

“…Zhang [7] added two rows of studs to both sides of the perforated steel plate to improve the shear bearing capacity; this connector, which was composed of the perforated plate and the studs, was used in the Nakano Viaduct Project in Japan. For this method, push-out tests and finite element simulation analysis were performed by Deng [8] and Zheng [9]. Their study verified the superior shear resistance of the perforated plate + stud shear connector.…”

Section: Introductionmentioning

confidence: 87%

See 1 more Smart Citation

Shear Behavior of Stud-PBL Composite Shear Connector for Steel–Ceramsite Concrete Composite Structure

Zhu

Liu

et al. 2022

Coatings

View full text Add to dashboard Cite

For steel–concrete composite structure, a new type of stud–PBL composite shear connector can improve the shear resistance of steel–concrete interface, and polypropylene fiber ceramsite concrete can reduce the self-weight. Therefore, investigating the shear behavior of stud–PBL composite shear connectors for steel–ceramsite concrete composite structures bears significance. In this study, static testing and numerical simulation of the composite shear connector push-out specimen of polypropylene fiber ceramsite concrete were first conducted. The influencing factors of the shear bearing capacity were then analyzed. The formula for determining the shear bearing capacity of the steel–ceramsite concrete composite structure stud–PBL composite shear connectors was ultimately established. The results indicated that the new composite shear connector exhibited excellent shear resistance and good deformation ability. In addition, increasing concrete’s strength, stud’s diameter, and perforated plate’s thickness could significantly improve the shear bearing capacity of the composite shear connector. The calculated value of the shear bearing capacity of the composite shear connector was well correlated the measured value of the test. Overall, the stud–PBL composite shear connector could effectively improve the interfacial shear bearing performance of the steel–ceramsite concrete composite structure. Moreover, the established formula demonstrated broad applicability.

show abstract

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 87%

Shear Behavior of Stud-PBL Composite Shear Connector for Steel–Ceramsite Concrete Composite Structure

Zhu

Liu

et al. 2022

Coatings

View full text Add to dashboard Cite

show abstract

“…The concrete shear stiffness bars effect on the shear stiffness of corrugated connector in the elastic stage. A new mixed type of combined connectors was suggested by Zheng et al [12]. The researchers used a stud connector with perfobond connector together.…”

Section: Nomenclaturementioning

confidence: 99%

Push-out Tests for Determining Shear Strength and Stiffness of Perfobond Connector-Experimental Study

Farhan

Shallal

2019

QJES

View full text Add to dashboard Cite

This study presents an experimental investigation for push-out tests in order to evaluate the performance of continuous perfobond connectors. A total of five specimens composed of light-weight concrete-filled steel tubes (square and circle sections) with two reinforced blocks were tested. The measured parameters are the compressive strength of the concrete blocks and the type of the section. The specimens were tested under a concentric load applied on the steel tube filled with lightweight concrete; the corresponding slip value was measured using two LVDTs. The experimental results showed that the ultimate shear strength and stiffness of the square steel tube filled with concrete were higher than that of circular samples. The ultimate shear strength and stiffness increased with an increase of concrete compressive strength, while the corresponding slips showed decreasing in their values with increase of the compressive strength of the concrete.

show abstract

“…As a typical flexible shear key, it is widely applied in steel-concrete composite beams and slabs. At present, the influences of stud length, diameter, and number on bond-slip performance and stiffness were evaluated by push-out tests and numerical simulation [1][2][3]. On this basis, the calculation methods of bearing capacity and stiffness were analyzed, and suggestions for engineering design were proposed.…”

Section: Introductionmentioning

confidence: 99%

Bond-Slip Testing and Performance Evaluation of Semi-Rigid Flange Folded Web Shear Keys

2022

View full text Add to dashboard Cite

The shear key is crucial to the overall mechanical performance of the structure. A new type of semi-rigid connector-flange folded web shear key was proposed to determine the effective unity of higher bearing capacity and deformation. A total of five groups of specimens were designed, and the push-out test method was used to evaluate the ultimate bearing capacity, bond-slip process, failure mode, and strain distribution of the new shear key. The results show that before sliding, the embedded effect of the concrete and shear key is significant, and it has a significant sliding stiffness. After sliding, the steel plate in the middle of the opening of the outer folded plate buckles, which shows certain semi-rigid characteristics. Compared with equal-area studs, the bearing capacity of the new shear key is increased by more than 40%, and the deformation capacity exceeds 60 %, indicating good bond-slip performance. The constraint range of the shear key is greatly improved compared with the stud, and a trapezoidal area of constraint centered on the shear key is formed, accounting for more than half of the area of the concrete slab. Based on an experimental study, a practical calculation method of ultimate bearing capacity of the shear key is proposed, which can meet engineering safety requirements. Based on the analysis of bond-slip characteristics of different forms of shear keys, compared with the rigid T-shaped shear key, the slip load and ultimate bearing capacity of the new shear key are found to be increased by 39 % and 74 %, respectively, and the deformation capacity is increased more than 10-fold. Compared with the flexible stud shear connectors, the sliding load is increased by 86 %, the ultimate bearing capacity is increased more two-fold, and the stiffness is increased by nearly five times. The device exhibits good comprehensive performance.

show abstract

Parametric Push‐Out Analysis on Perfobond Rib with Headed Stud Mixed Shear Connector

Cited by 6 publications

References 24 publications

Shear Behavior of Stud-PBL Composite Shear Connector for Steel–Ceramsite Concrete Composite Structure

Shear Behavior of Stud-PBL Composite Shear Connector for Steel–Ceramsite Concrete Composite Structure

Push-out Tests for Determining Shear Strength and Stiffness of Perfobond Connector-Experimental Study

Bond-Slip Testing and Performance Evaluation of Semi-Rigid Flange Folded Web Shear Keys

Contact Info

Product

Resources

About