Basic Performance of the Composite Deck System Composed of Orthotropic Steel Deck and Ultrathin RPC Layer

Shao, Xudong; Yi, Dutao; Huang, Zheng-Yu; Zhao, Hongbo; Chen, Bin; Liu, Meilin

doi:10.1061/(asce)be.1943-5592.0000348

Cited by 209 publications

(74 citation statements)

References 4 publications

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“…Because coarse aggregates affect the distribution of fibers and weaken the interface transition zone within ordinary concrete, the brittleness of concrete is improved greatly by applying ECC without coarse aggregates [11]. Moreover, ECC has great ability in controlling crack width, and it has a number of applications, such as weight-bearing structures of concrete and steel-concrete composite airport runways and bridge decks, but the high strength and ductility of ECC are still stressed [12][13][14]. It is known that each ton of cement produced generates an equal amount of carbon dioxide, responsible for 5% of global greenhouse gas emission created by human activities [15].…”

Section: Introductionmentioning

confidence: 99%

Use of Silica Fume and GGBS to Improve Frost Resistance of ECC with High‐Volume Fly Ash

Liu

Zhou

et al. 2018

Advances in Civil Engineering

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Fly ash (FA) has been an important ingredient for engineered cementitious composite (ECC) with excellent tensile strain capacity and multiple cracking. Unfortunately, the frost resistance of ECC with high-volume FA has always been a problem. is paper discusses the influence of silica fume (SF) and ground-granulated blast-furnace slag (GGBS) on the frost resistance of ECC with high volume of FA. Four ECC mixtures, ECC (50% FA), ECC (70% FA), ECC (30% FA + 40% SL), and ECC (65% FA + 5% SF), are evaluated by freezing-thawing cycles up to 200 cycles in tap water and sodium chloride solution. e result shows the relative dynamic elastic modulus and mass loss of ECC in sodium chloride solution by freeze-thaw cycles are larger than those in tap water by freeze-thaw cycles. Moreover, the relative dynamic elastic modulus and mass loss of ECC by freeze-thaw cycles increase with FA content increasing. However, the ECC (30% FA + 40% SL) shows a lower relative dynamic elastic modulus and mass loss, but its deflection upon four-point bending test is relatively smaller before and after freeze-thaw cycles. By contrast, the ECC (65% FA + 5% SF) exhibits a significant deflection increase with higher first cracking load, and the toughness increases sharply after freezethaw cycles, meaning ECC has good toughness property.

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Section: Introductionmentioning

confidence: 99%

Use of Silica Fume and GGBS to Improve Frost Resistance of ECC with High‐Volume Fly Ash

Liu

Zhou

et al. 2018

Advances in Civil Engineering

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“…Because of various reasons, the deck will appear fatigue crack and other diseases. Reactive powder concrete [3] (Reactive Power concrete-referred RPC) used as a new pavement system by Hunan University Xudong Shao [4] ~[6 professor can significantly improve the mechanical behavior of bridge deck. In this paper, the common asphalt pavement and RPC pavement system were compared.…”

Section: Computational Modelmentioning

confidence: 99%

Influence of Pavement on Fatigue Performance of Urban Steel Box Girder Deck

Zheng

Mian

2016

MATEC Web Conf.

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Abstract.Based on spatial finite element analysis method, the Influence of pavement on fatigue performance of orthotropic steel deck was analyzed in terms of pavement system, asphalt pavement stiffness. The result shows that compared with asphalt pavement system, RPC pavement system can not only obviously improve the stress condition of steel bridge deck, but also significantly extend the fatigue life of steel bridge panel; Increasing the stiffness of pavement layer can obviously reduce the stress amplitude of fatigue details, especially for direct contact with the pavement.

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“…The application of ultra-high performance concrete (UHPC) with high elastic modulus and high tensile strength to the orthotropic steel bridge deck provides a new direction for solving the above problems. Shao et al [2] proposed a new steel-UHPC composite deck structure which connecting the UHPC layer to the steel deck by stud connectors. The results show that the UHPC pavement can significantly enhance the integral rigidity of the composite structure, which can effectively eliminate the risks of steel plate fatigue cracking and pavement damage.…”

Section: Introductionmentioning

confidence: 99%

Shear strength analysis of the stud in steel-UHPC composite bridge deck

Deng

Huo

Shi

et al. 2017

IOP Conf. Ser.: Earth Environ. Sci.

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Abstract:In the steel-UHPC lightweight composite bridge deck, the UHPC layer is connected to the steel plate of the orthogonal steel bridge deck through headed steel stud connectors. In order to form a strong combination, it is necessary to ensure that the studs have sufficient shear strength. By establishing the local finite element model, the interlaminar shear stress between the UHPC pavement and the steel deck in the new steel-UHPC composite bridge deck is computed, and the influence of loading factors such as various wheel loading conditions is considered. The results show that the maximum transverse interlaminar shear stress is about twice of the maximum longitudinal interlaminar shear stress. The maximum transverse shear stress under action of bi-axle loading is about 1.33 times of that of the single axle loading. The shear strength of the headed stud meets the requirements of the Chinese standard, USA standard and the European standard. IntroductionAttributed to its light weight, high bearing capacity, rapid construction speed, easy to maintain, orthotropic steel bridge decks have been widely applied to long-span bridges all over the world. However, a lot of engineering experiences indicate that there are two major technical challenges existing in orthotropic steel bridge deck: fatigue cracking and conventional asphalt pavement failure [1].The traditional solution is to improve the weld details or increase the thickness of the steel plate of the orthotropic steel bridge deck, but the problems mentioned above still remain unsolvable fundamentally. The application of ultra-high performance concrete (UHPC) with high elastic modulus and high tensile strength to the orthotropic steel bridge deck provides a new direction for solving the above problems. Shao et al.[2] proposed a new steel-UHPC composite deck structure which connecting the UHPC layer to the steel deck by stud connectors. The results show that the UHPC pavement can significantly enhance the integral rigidity of the composite structure, which can effectively eliminate the risks of steel plate fatigue cracking and pavement damage.The UHPC layer is connected to the orthogonal steel bridge deck through headed steel stud connectors. Therefore it is important to calculate the shear strength of the stud. With the application of UHPC in bridge engineer, the research on interlaminar shear stress of the steel-UHPC composite structure received extensive attention. Zhang et al. [3] took Dongting Lake Bridge with open-rib steel-UHPC composite deck as engineering background and analyzed the effect of the wheel loads on the interlaminar shear stresses.

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Basic Performance of the Composite Deck System Composed of Orthotropic Steel Deck and Ultrathin RPC Layer

Cited by 209 publications

References 4 publications

Use of Silica Fume and GGBS to Improve Frost Resistance of ECC with High‐Volume Fly Ash

Use of Silica Fume and GGBS to Improve Frost Resistance of ECC with High‐Volume Fly Ash

Influence of Pavement on Fatigue Performance of Urban Steel Box Girder Deck

Shear strength analysis of the stud in steel-UHPC composite bridge deck

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