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

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

Key Engineering Materials ◽

10.4028/www.scientific.net/kem.306-308.1355 ◽

2006 ◽

Vol 306-308 ◽

pp. 1355-1360 ◽

Cited By ~ 7

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.

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Demonstration and Validation of a Lightweight Composite Bridge Deck Technology as an Alternative to Reinforced Concrete

10.21236/ad1016971 ◽

2016 ◽

Author(s):

Karl Palutke ◽

Richard G. Lampo ◽

Lawrence Clark ◽

James Wilcoski ◽

Rick Miles ◽

...

Keyword(s):

Reinforced Concrete ◽

Bridge Deck ◽

Composite Bridge ◽

Composite Bridge Deck

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

Key Engineering Materials ◽

10.4028/www.scientific.net/kem.334-335.381 ◽

2007 ◽

Vol 334-335 ◽

pp. 381-384 ◽

Cited By ~ 3

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.

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