scholarly journals Push-Out Tests for Shear Connectors in GFRP-Concrete Composite Bridge Deck Slabs

2018 ◽  
Vol 16 (8) ◽  
pp. 368-381 ◽  
Author(s):  
Hailin Huang ◽  
Ao Li ◽  
Lin Chen ◽  
Chuijun Zeng ◽  
Mingqiao Zhu
Keyword(s):  
Bridge Deck ◽  
Shear Connectors ◽  
Deck Slabs ◽  
Bridge Deck Slabs ◽  
Composite Bridge ◽  
Composite Bridge Deck ◽  
Push Out

Perforated FRP Shear Connector for the FRP-Concrete Composite Bridge Deck

2007 ◽  
Vol 334-335 ◽  
pp. 381-384 ◽  
Author(s):  
Jeong Hun Nam ◽  
Soon Jong Yoon ◽  
Dong Min Ok ◽  
Sun Kyu Cho
Keyword(s):  
Bridge Deck ◽  
Experimental Investigations ◽  
Shear Connector ◽  
Composite Action ◽  
Shear Connectors ◽  
Load Carrying ◽  
Composite Bridge ◽  
New Type ◽  
Composite Bridge Deck ◽  
Push Out

In recent years, the FRP-concrete composite bridge deck system has been introduced because of its light-weight and durability. The FRP-concrete composite bridge deck is composed of FRP module and concrete, and they are connected with shear connectors. In order to insure the composite action between FRP module and concrete, appropriate types of shear connector need to be installed. In this study, new type of FRP shear connector was suggested and the experimental investigations are conducted based on the studies of Perfobond. In the experimental study, the push-out test was conducted and the load carrying mechanism was analyzed including the friction effect of sand coating. Considering the load carrying mechanism of perforated shear connector under shear force, the empirical equation for the prediction of shear strength of perforated FRP shear connector was suggested.

Experimental Investigation on the Structural Behavior of Shear Connectors Used in the FRP and Concrete Bridge Deck System

2006 ◽  
Vol 306-308 ◽  
pp. 1355-1360 ◽  
Author(s):  
Hyung Joong Joo ◽  
Seung Sik Lee ◽  
Soon Jong Yoon ◽  
Ju Kyung Park ◽  
Seok Goo Youn
Keyword(s):  
Experimental Investigation ◽  
Service Life ◽  
Feasibility Study ◽  
Bridge Deck ◽  
Structural Behavior ◽  
Concrete Bridge ◽  
Shear Connectors ◽  
Composite Bridge ◽  
Concrete Bridge Deck ◽  
Composite Bridge Deck

Feasibility study on the use of newly developed FRP and concrete composite bridge deck system is conducted. To lengthen the service life of bridge deck, the steel-free bridge deck system is developed. In this deck system, shear connectors between FRP module and concrete are utilized and structural behavior of shear connectors is investigated experimentally. The result of an investigation reveals that the system is promising.

Contribution of perforated steel ribs to load-carrying capacities of steel and concrete composite slabs under negative bending

2018 ◽  
Vol 21 (12) ◽  
pp. 1879-1894 ◽  
Author(s):  
Xiaoqing Xu ◽  
Yuqing Liu ◽  
Yize Zuo
Keyword(s):  
Failure Modes ◽  
Shear Crack ◽  
Shear Cracks ◽  
Shear Connectors ◽  
Deck Slabs ◽  
Load Carrying ◽  
Composite Slabs ◽  
Bridge Deck Slabs ◽  
Composite Bridge ◽  
Negative Bending

To attain a better understanding of the contribution of perforated steel ribs to the load-carrying capacities of steel and concrete composite slabs, six specimens with different shear connectors and areas of steel bars were tested under negative bending. Applied load, deformation, location and subsequent trajectory of cracks, strains, and failure mode of each specimen were recorded during the tests. Shear cracks were observed in two specimens, while in the other specimens only bending cracks were found. The perforated L-shaped ribs were proved to reduce the shear crack risk of composite bridge deck slabs and have a larger contribution to the loading-carrying capacities of composite slabs than plain ribs. Based on the experimental results, calculation methods were proposed to evaluate the flexural and shear strength of composite slabs. The calculated methods can quantitatively show the favorable influence of perforated steel ribs on the loading-carrying capacities of composite slabs, and the failure modes can be well predicted.

scholarly journals Load Capacities of Steel and Concrete Composite Bridge Deck Slab with Haunch

2017 ◽  
Vol 2017 ◽  
pp. 1-15 ◽  
Author(s):  
Xiaoqing Xu ◽  
Yuqing Liu
Keyword(s):  
Reinforced Concrete ◽  
Bridge Deck ◽  
Shear Connectors ◽  
Design Load ◽  
Unfavourable Effect ◽  
Different Types ◽  
Negative Moment ◽  
Composite Bridge ◽  
Composite Bridge Deck ◽  
Deck Slab

An innovative steel and concrete composite bridge deck slab using bent bars and epoxy as shear connectors was proposed. Four slab specimens with different types of concrete were fabricated and tested to study the load capacities of positive and negative moment regions of the slabs. The cracking and ultimate loads of the specimens were recorded and compared with the results calculated through the reinforced concrete theory and with the design load of the bridge deck slab. It was found that reinforced concrete theory can generally be applied for the proposed slab as well. The effectiveness of the shear connector design of the proposed slab was validated. Meanwhile, the unfavourable effect of the haunch on the shear capacities of the positive moment region of steel and concrete composite bridge deck slab was observed.

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