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| 1 | Experimental study on flexural behavior of ECC/RC composite beams with U-shaped ECO permanent formwork显示文摘To enhance the durability of a reinforced concrete structure, engineered cementitious composite (ECC), which exhibits high tensile ductility and good crack control ability, is considered a promising alternative to conventional concrete. However, broad application of ECC is hindered by its high cost. This paper presents a new means to address this issue by introducing a composite beam with a U-shaped ECC permanent formwork and infill concrete. The flexural performance of the ECC/RC composite beam has been investigated experimentally with eight specimens. According to the test results, the failure of a composite beam with a U-shaped ECC formwork is initiated by the crushing of compressive concrete rather than debonding, even if the surface between the ECC and the concrete is smooth as-finished. Under the same reinforcement configurations, ECC/RC composite beams exhibit increases in flexural performance in terms of ductility, load-carrying capacity, and damage tolerance compared with the counterpart ordinary RC beam. Furthermore, a theoretical model based on the strip method is proposed to predict the moment-curvature responses of ECC/RC composite beams, and a simplified method based on the equivalent rectangular stress distribution approach has also evolved. The theoretical results are found to be in good agreement with the test data. | Zhi QIAO Zuanfeng PAN Weichen XUE Shaoping MENG | 2019 | Frontiers of Structural and Civil Engineering2019，13，5： | 3 |
| 2 | Design optimization and experi- mental study on beam string structures显示文摘 | Weichen Xue Sheng Liu | 2009 | Journal of Con- struction Steel Research2009，65，1： | 1 |
| 3 | Creep Behavior of High-speed Railway Prestressed Concrete Girders for 500 Days 显示文摘 | Xue Weichen Liu Ting Wang Wei and Hu Yuming | 2011 | ACI Structural Journal2011，108，4： | 1 |
| 4 | Static behavior and theoretical model of stud shear connectors显示文摘 | Xue Weichen Ding Min Wang Hua | 2008 | Journal of Bridge Engineering2008，13，62： | 1 |
| 5 | Regulating the nanoscale intimacy of metal and acidic sites in Ru/γ-Al_(2)O_(3)for the selective conversions of lignin-derived phenols to jet fuels显示文摘Catalytic hydrodeoxygenation(HDO)of biomass-derived oxy-compounds to advanced hydrocarbon fuels usually requires bifunctional catalysts containing metals and acidic sites.The appropriate tuning of metal and/or acidic active sites at interfaces of bifunctional catalysts can significantly improve catalyst activity and product selectivity.Here,4-trifuoromethyl salicylic acid(TFMSA),as a hydrothermal stable organic acid,was employed to tailor the bifunctional interface of Ru/γ-Al_(2)O_(3)to enhance the catalytic performance on converting lignin-derived phenols to jet fuel range cycloalkanes.More than 80%phenol was converted into cyclohexane at 230°C for 1 h over Ru/γ-Al_(2)O_(3)modified by TFMSA,which was about three times higher than that over unmodified Ru/γ-Al_(2)O_(3).X-ray diffraction(XRD),Transmission electron microscope(TEM),H2 chemisorption,and energy dispersive X-ray spectroscopy(EDS)elemental mapping results indicated that Ru nanoparticles and TFMSA were well distributed onγ-Al_(2)O_(3),and a nanoscale intimacy between Ru and TFMSA was reached.Meanwhile,Fourier transform infrared spectroscopy after pyridine adsorption(Py-FT-IR)analysis proved that Brønsted acidic sites on the catalytic interfaces of TFMSA modified Ru/γ-Al_(2)O_(3)had been improved.Moreover,the kinetic and density functional theory(DFT)results suggested that the synergistic effects of adjacent Ru nanoparticles and acidic sites were crutial for promoting the rate-limiting conversion step of phenol HDO to cyclohexane. | Shanshuai Chen Weichen Wang Xue Li Puxiang Yan Wanying Han Tian Sheng Tiansheng Deng Wanbin Zhu Hongliang Wang | 2022 | Journal of Energy Chemistry2022，31，3： | 1 |
| 6 | Design optimization and experimental study on beam string struetures显示文摘 | Xue Weichen Liu Sheng | 2009 | Journal of Construc- tional Steel Research2009，65，： | 1 |
| 7 | Long-term behavior of prestressed composite beams at service loads for one year 显示文摘 | Xue Weichen Ding Min He Chi Li Jie | 2008 | ASCE Journal of Structural Engineering2008，134，6： | 1 |
| 8 | Static behavior and theoretical model of stud shear connectors显示文摘 | XUE Weichen DING Min WANG Hua | 2008 | Journal of Bridge Engineering2008，13，6： | 1 |
| 9 | Flexural response predictions of reinforced concrete beams strengthened with prestressed FRP plates 显示文摘 | Xue Weichen Tan Yuan Zeng Lei | 2010 | Composite Structures2010，，92： | 1 |
| 10 | Bond properties of high strength CFRP strands 显示文摘 | XUE WEICHEN WANG XIAOHUI ZHANG SHULU | 2008 | ACI Material Journal2008，105，1： | 1 |
| 11 | Experimental studies on bond behavior of high strength CFRP plates 显示文摘 | Weichen Xue Lei Zeng Yuan Tan | 2008 | Composites Part B: Engineering2008，39，4： | 1 |
| 12 | Static behavior and theoretical model of stud shear connectors显示文摘 | XUE Weichen DING Min WANG Hua | 2008 | Journal of Bridge Engineering ASCE2008，，： | 1 |
| 13 | Design optimization and experimental study on beam string structure 显示文摘 | Xue Weichen Liu Sheng | 2008 | Journal of Constructional Steel Research2008，65，1： | 1 |
| 14 | Advances in durability of FRP bars under alkaline environment 显示文摘 | Wang Wei Xue Weichen | 2011 | ICETCE2011，，1： | 1 |
| 15 | Bond properties of high strength CFRP strands 显示文摘 | XUE Weichen WANG Xiaohui ZHANG Shulu | 2008 | ACI Materials Journal2008，105，1： | 1 |
| 16 | Design optimization and experimental study on beam string structures 显示文摘 | Xue Weichen Liu Sheng | 2009 | Journal of Constructional Steel Research2009，65，1： | 1 |
| 17 | Experimental studies on behavior of stud shear connectors subjected to cyclic loads显示文摘 | XUE Weichen LUO Zihua WANG Hua | 2005 | Jour- nal of Harbin Institute of Technology2005，37，9： | 1 |
| 18 | Linear elastic and limit state solutions of beam string structures by the Ritz-method 显示文摘 | Xue Weichen Liu Sheng | 2010 | Structural Engineering and Mechanics2010，35，1： | 1 |
| 19 | Bond properties of high strength CFRP strands 显示文摘 | XUE WEICHEN WANG XIAOHUI ZHANG SHULU | 2008 | ACI Material Journal2008，105，1： | 1 |
| 20 | Seismic Behavior of Hybrid Concrete Beam-Column Connections with Composite Beams and Cast-in-Place Columns显示文摘 | Xue Weichen Zhang Bin | 2014 | ACI Structural Journal2014，，3： | 1 |
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