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155 results on '"Liu, Rui-Qing"'

5. Time-Varying Seismic Fragility Analysis of ECC-RC Composite Bridge with High-Strength Steel Bars.

Author

Liang, Yan, Kong, Yu-Zhen, Zhao, Cheng-Xin, Liu, Rui-Qing, Luo, Jun, and Zhu, Ren-Hui

Subjects
IRON & steel bridges, BRIDGE foundations & piers, DETERIORATION of concrete, REINFORCED concrete corrosion, STEEL bars, CEMENT composites, FINITE element method
Abstract

An Engineered Cementitious Composites (ECC)-Reinforced Concrete (RC) composite pier with high-strength steel bars was developed to address various deterioration concerns in bridges, such as reinforcement bar corrosion, decreased concrete strength, and inadequate seismic performance of RC piers. This paper focuses on the seismic performance of the bridge with ECC-RC composite piers with high-strength steel bars. The nonlinear finite element models of bridges with common RC piers and ECC-RC composite piers with high-strength steel bars are established using OpenSees. Considering the effect of chloride erosion during bridge service and the damage and repair of concrete cover, time-varying fragility curves for bridge piers, bearings, and the bridge system were established based on the Incremental Dynamic Analysis (IDA) and the Capacity Demand Ratio (CDR) analysis method, followed by a comprehensive analysis. The results show that when ECC with high-strength steel bars is adopted in the plastic hinge area of bridge piers, the exceeding probability of ECC-RC composite piers with high-strength steel bars is significantly reduced. However, it has minimal impact on the seismic fragility of the bearings. When the bridge was in service for 100 years, the exceeding probability of the ECC-RC composite bridge system with high-strength steel bars was reduced by 18.79%, 51.33%, 49.38%, and 19.5%, respectively, under four different damage states. [ABSTRACT FROM AUTHOR]

Published
2024
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19. Cover Image

Author

Liu, Rui‐Qing, primary, Yang, Ming‐Lin, additional, Wu, Bi‐Yi, additional, and Sheng, Xin‐Qing, additional

Published
2020
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26. Bendable Network Built with Ultralong Silica Nanowires as a Stable Separator for High-Safety and High-Power Lithium-Metal Batteries

Author

Du, Qing-Chuan, primary, Yang, Ming-Tong, additional, Yang, Ji-Ke, additional, Zhang, Pei, additional, Qi, Ju-Quan, additional, Bai, Ling, additional, Li, Zhuang, additional, Chen, Jian-Yu, additional, Liu, Rui-Qing, additional, Feng, Xiao-Miao, additional, Huang, Zhen-Dong, additional, Masese, Titus, additional, Ma, Yan-Wen, additional, and Huang, Wei, additional

Published
2019
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33. Palladium‐Catalyzed One‐Pot Coupling / Cyclization through Mo(CO)6 as the Carbon Monoxide Donor: Synthesis of Quinazolinones.

Author

Tao, Shou‐Wei, Liu, Rui‐Qing, Zhou, Jing‐Ya, and Zhu, Yong‐Ming

Subjects
*CARBON monoxide, *MOLYBDENUM compounds, *QUINAZOLINONES, *ARYL bromides, *FUNCTIONAL groups
Abstract

An efficient and rapid one‐pot synthesis of quinazolinone via a three‐component carbonylative coupling of 2‐aminobenzamide or 2‐aminobenzonitrile, Mo(CO)6 and aryl bromides has been developed recently. This method provide a new way to synthesize quinazolinone which has a wide substrate scope, good functional group tolerance and mild reaction condition. [ABSTRACT FROM AUTHOR]

Published
2020
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37. Grain-boundary-rich mesoporous NiTiO3 micro-prism as high tap-density, super rate and long life anode for sodium and lithium ion batteries

Author

Huang, Zhen-Dong, primary, Zhang, Ting-Ting, additional, Lu, Hao, additional, Masese, Titus, additional, Yamamoto, Kentarou, additional, Liu, Rui-Qing, additional, Lin, Xiu-Jing, additional, Feng, Xiao-Miao, additional, Liu, Xian-Ming, additional, Wang, Dan, additional, Uchimoto, Yoshiharu, additional, and Ma, Yan-Wen, additional

Published
2018
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48. On the $\mathcal{H}$ -LU-Based Fast Finite Element Direct Solver for 3-D Scattering Problems.

Author

Yang, Ming-lin, Liu, Rui-Qing, Gao, Hong-Wei, and Sheng, Xin-Qing

Subjects
*FINITE element method, *SCATTERING (Physics), *QUASISTATIC processes, *SPARSE matrices, *MUMPS (Computer program language), *CENTRAL processing units
Abstract

The nested dissection (ND) $\mathcal {H}$ -LU-based fast finite element (FE) direct solver is studied for scattering by large 3-D inhomogeneous objects. The special characteristics of the admissibility condition in FE method (FEM) are demonstrated comparing with those in the moment method. A weaker admissibility condition in FEM is proposed for higher efficiency than the conventional one. A better reduction scheme is presented for electrodynamic scattering problem. Numerical experiments show that our developed ND $\mathcal {H}$ -LU-based FE direct solver has O(NlogN) memory complexity and O(Nlog2N) CPU time complexity for a quasi-static problem, but a larger and irregular complexity for an electrodynamic problem. It has been compared with other most advanced direct sparse solvers and proved to have a better performance. A large realistic scattering problem with more than 10 million unknowns is calculated, showing the capability of our proposed ND-based $\mathcal {H}$ -LU direct FEM solver. [ABSTRACT FROM AUTHOR]

Published
2018
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